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LU-13817 quota: print error when pool is absent
[fs/lustre-release.git] / lustre / utils / liblustreapi.c
index 67eb90b..43fd548 100644 (file)
 #include <sys/time.h>
 #include <sys/types.h>
 #include <sys/xattr.h>
+#include <sys/sysmacros.h>
 #include <time.h>
 #include <fnmatch.h>
 #include <libgen.h> /* for dirname() */
+#include <linux/limits.h>
 #ifdef HAVE_LINUX_UNISTD_H
 #include <linux/unistd.h>
 #else
@@ -69,6 +71,7 @@
 #endif
 #include <poll.h>
 #include <time.h>
+#include <inttypes.h>
 
 #include <libcfs/util/ioctl.h>
 #include <libcfs/util/param.h>
 #include <linux/lustre/lustre_ostid.h>
 #include <linux/lustre/lustre_ioctl.h>
 #include "lustreapi_internal.h"
+#include "lstddef.h"
 
 static int llapi_msg_level = LLAPI_MSG_MAX;
 const char *liblustreapi_cmd;
 
 char *mdt_hash_name[] = { "none",
                          LMV_HASH_NAME_ALL_CHARS,
-                         LMV_HASH_NAME_FNV_1A_64 };
+                         LMV_HASH_NAME_FNV_1A_64,
+                         LMV_HASH_NAME_CRUSH,
+};
+
+struct lustre_foreign_type lu_foreign_types[] = {
+       {.lft_type = LU_FOREIGN_TYPE_NONE, .lft_name = "none"},
+       {.lft_type = LU_FOREIGN_TYPE_DAOS, .lft_name = "daos"},
+       /* must be the last element */
+       {.lft_type = LU_FOREIGN_TYPE_UNKNOWN, .lft_name = NULL}
+       /* array max dimension must be <= UINT32_MAX */
+};
 
 void llapi_msg_set_level(int level)
 {
-        /* ensure level is in the good range */
-        if (level < LLAPI_MSG_OFF)
-                llapi_msg_level = LLAPI_MSG_OFF;
-        else if (level > LLAPI_MSG_MAX)
-                llapi_msg_level = LLAPI_MSG_MAX;
-        else
-                llapi_msg_level = level;
+       /* ensure level is in the good range */
+       if (level < LLAPI_MSG_OFF)
+               llapi_msg_level = LLAPI_MSG_OFF;
+       else if (level > LLAPI_MSG_MAX)
+               llapi_msg_level = LLAPI_MSG_MAX;
+       else
+               llapi_msg_level = level;
 }
 
 int llapi_msg_get_level(void)
@@ -115,16 +129,36 @@ void llapi_clear_command_name(void)
 static void error_callback_default(enum llapi_message_level level, int err,
                                   const char *fmt, va_list ap)
 {
+       bool has_nl = strchr(fmt, '\n') != NULL;
+
        if (liblustreapi_cmd != NULL)
                fprintf(stderr, "%s %s: ", program_invocation_short_name,
                        liblustreapi_cmd);
        else
                fprintf(stderr, "%s: ", program_invocation_short_name);
-       vfprintf(stderr, fmt, ap);
-       if (level & LLAPI_MSG_NO_ERRNO)
-               fprintf(stderr, "\n");
-       else
+
+
+       if (level & LLAPI_MSG_NO_ERRNO) {
+               vfprintf(stderr, fmt, ap);
+               if (!has_nl)
+                       fprintf(stderr, "\n");
+       } else {
+               char *newfmt;
+
+               /*
+                * Remove trailing linefeed so error string can be appended.
+                * @fmt is a const string, so we can't modify it directly.
+                */
+               if (has_nl && (newfmt = strdup(fmt)))
+                       *strrchr(newfmt, '\n') = '\0';
+               else
+                       newfmt = (char *)fmt;
+
+               vfprintf(stderr, newfmt, ap);
+               if (newfmt != fmt)
+                       free(newfmt);
                fprintf(stderr, ": %s (%d)\n", strerror(err), err);
+       }
 }
 
 static void info_callback_default(enum llapi_message_level level, int err,
@@ -291,7 +325,7 @@ int llapi_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max_len)
 
        if (*pbuf != NULL && data->ioc_len > max_len) {
                llapi_error(LLAPI_MSG_ERROR, -EINVAL,
-                           "pbuf = %p, ioc_len = %u, max_len = %d\n",
+                           "pbuf = %p, ioc_len = %u, max_len = %d",
                            *pbuf, data->ioc_len, max_len);
                return -EINVAL;
        }
@@ -376,45 +410,53 @@ int llapi_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len)
 int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
                                int stripe_count, int stripe_pattern)
 {
-       int page_size, rc;
+       static int page_size;
+       int rc = 0;
 
-       /* 64 KB is the largest common page size I'm aware of (on ia64), but
-        * check the local page size just in case. */
-       page_size = LOV_MIN_STRIPE_SIZE;
-       if (getpagesize() > page_size) {
-               page_size = getpagesize();
-               llapi_err_noerrno(LLAPI_MSG_WARN,
-                               "warning: your page size (%u) is "
-                               "larger than expected (%u)", page_size,
-                               LOV_MIN_STRIPE_SIZE);
+       if (page_size == 0) {
+               /*
+                * 64 KB is the largest common page size (on ia64/PPC/ARM),
+                * but check the local page size just in case. The page_size
+                * will not change for the lifetime of this process at least.
+                */
+               page_size = LOV_MIN_STRIPE_SIZE;
+               if (getpagesize() > page_size) {
+                       page_size = getpagesize();
+                       llapi_err_noerrno(LLAPI_MSG_WARN,
+                                         "warning: page size (%u) larger than expected (%u)",
+                                         page_size, LOV_MIN_STRIPE_SIZE);
+               }
        }
        if (!llapi_stripe_size_is_aligned(stripe_size)) {
                rc = -EINVAL;
-               llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe_size %llu, "
-                               "must be an even multiple of %d bytes",
-                               stripe_size, page_size);
-               return rc;
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "error: bad stripe_size %llu, must be an even multiple of %d bytes",
+                           (unsigned long long)stripe_size, page_size);
+               goto out;
        }
        if (!llapi_stripe_index_is_valid(stripe_offset)) {
                rc = -EINVAL;
                llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
                                stripe_offset);
-               return rc;
+               goto out;
        }
        if (!llapi_stripe_count_is_valid(stripe_count)) {
                rc = -EINVAL;
                llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
                                stripe_count);
-               return rc;
+               goto out;
        }
        if (llapi_stripe_size_is_too_big(stripe_size)) {
                rc = -EINVAL;
                llapi_error(LLAPI_MSG_ERROR, rc,
-                               "warning: stripe size 4G or larger "
-                               "is not currently supported and would wrap");
-               return rc;
+                           "error: stripe size '%llu' over 4GB limit",
+                           (unsigned long long)stripe_size);
+               goto out;
        }
-       return 0;
+
+out:
+       errno = -rc;
+       return rc;
 }
 
 int llapi_dir_stripe_limit_check(int stripe_offset, int stripe_count,
@@ -498,23 +540,21 @@ static int get_param_lmv(const char *path, const char *param,
 
 static int get_mds_md_size(const char *path)
 {
-       char buf[PATH_MAX], inst[PATH_MAX];
        int md_size = lov_user_md_size(LOV_MAX_STRIPE_COUNT, LOV_USER_MAGIC_V3);
-       int rc;
-
-       rc = llapi_getname(path, inst, sizeof(inst));
-       if (rc != 0)
-               return rc;
 
-       /* Get the max ea size from llite parameters. */
-       rc = get_lustre_param_value("llite", inst, FILTER_BY_EXACT,
-                                   "max_easize", buf, sizeof(buf));
-       if (rc != 0)
-               return rc;
+       /*
+        * Rather than open the file and do the ioctl to get the
+        * instance name and close the file and search for the param
+        * file and open the param file and read the param file and
+        * parse the value and close the param file, let's just return
+        * a large enough value. It's 2020, RAM is cheap and this is
+        * much faster.
+        */
 
-       rc = atoi(buf);
+       if (md_size < XATTR_SIZE_MAX)
+               md_size = XATTR_SIZE_MAX;
 
-       return rc > 0 ? rc : md_size;
+       return md_size;
 }
 
 int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize)
@@ -522,87 +562,6 @@ int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize)
        return get_param_lmv(path, "uuid", buf, bufsize);
 }
 
-/*
- * if pool is NULL, search tgtname in target_obd
- * if pool is not NULL:
- *  if pool not found returns errno < 0
- *  if tgtname is NULL, returns 1 if pool is not empty and 0 if pool empty
- *  if tgtname is not NULL, returns 1 if OST is in pool and 0 if not
- */
-int llapi_search_tgt(char *fsname, char *poolname, char *tgtname, bool is_mdt)
-{
-       char buffer[PATH_MAX];
-       size_t len = 0;
-       glob_t param;
-       FILE *fd;
-       int rc;
-
-       /* You need one or the other */
-       if (poolname == NULL && fsname == NULL)
-               return -EINVAL;
-
-       if (tgtname != NULL)
-               len = strlen(tgtname);
-
-       if (poolname == NULL && len == 0)
-               return -EINVAL;
-
-       /* Search by poolname and fsname if is not NULL */
-       if (poolname != NULL) {
-               rc = poolpath(&param, fsname, NULL);
-               if (rc == 0) {
-                       snprintf(buffer, sizeof(buffer), "%s/%s",
-                                param.gl_pathv[0], poolname);
-               }
-       } else if (fsname != NULL) {
-               rc = get_lustre_param_path(is_mdt ? "lmv" : "lov", fsname,
-                                          FILTER_BY_FS_NAME,
-                                          "target_obd", &param);
-               if (rc == 0) {
-                       strncpy(buffer, param.gl_pathv[0],
-                               sizeof(buffer));
-               }
-       } else {
-               return -EINVAL;
-       }
-       cfs_free_param_data(&param);
-       if (rc)
-               return rc;
-
-       fd = fopen(buffer, "r");
-       if (fd == NULL)
-               return -errno;
-
-       while (fgets(buffer, sizeof(buffer), fd) != NULL) {
-               if (poolname == NULL) {
-                       char *ptr;
-                       /* Search for an tgtname in the list of targets
-                        * Line format is IDX: fsname-OST/MDTxxxx_UUID STATUS */
-                       ptr = strchr(buffer, ' ');
-                       if ((ptr != NULL) &&
-                           (strncmp(ptr + 1, tgtname, len) == 0)) {
-                               fclose(fd);
-                               return 1;
-                       }
-               } else {
-                       /* Search for an tgtname in a pool,
-                        * (or an existing non-empty pool if no tgtname) */
-                       if ((tgtname == NULL) ||
-                           (strncmp(buffer, tgtname, len) == 0)) {
-                               fclose(fd);
-                               return 1;
-                       }
-               }
-       }
-       fclose(fd);
-       return 0;
-}
-
-int llapi_search_ost(char *fsname, char *poolname, char *ostname)
-{
-       return llapi_search_tgt(fsname, poolname, ostname, false);
-}
-
 /**
  * Open a Lustre file.
  *
@@ -642,9 +601,12 @@ int llapi_file_open_param(const char *name, int flags, mode_t mode,
 
        /* Make sure we have a good pool */
        if (pool_name != NULL) {
-               /* in case user gives the full pool name <fsname>.<poolname>,
-                * strip the fsname */
+               /*
+                * in case user gives the full pool name <fsname>.<poolname>,
+                * strip the fsname
+                */
                char *ptr = strchr(pool_name, '.');
+
                if (ptr != NULL) {
                        *ptr = '\0';
                        if (strcmp(pool_name, fsname) != 0) {
@@ -672,7 +634,7 @@ int llapi_file_open_param(const char *name, int flags, mode_t mode,
 
        /* sanity check of target list */
        if (param->lsp_is_specific) {
-               char ostname[MAX_OBD_NAME + 1];
+               char ostname[MAX_OBD_NAME + 64];
                bool found = false;
                int i;
 
@@ -698,8 +660,7 @@ int llapi_file_open_param(const char *name, int flags, mode_t mode,
                }
                if (!found) {
                        llapi_error(LLAPI_MSG_ERROR, -EINVAL,
-                                   "%s: stripe offset '%d' is not in the "
-                                   "target list",
+                                   "%s: stripe offset '%d' is not in the target list",
                                    __func__, param->lsp_stripe_offset);
                        return -EINVAL;
                }
@@ -746,9 +707,11 @@ retry_open:
 
                lumv3->lmm_magic = LOV_USER_MAGIC_SPECIFIC;
                if (pool_name == NULL) {
-                       /* LOV_USER_MAGIC_SPECIFIC uses v3 format plus specified
+                       /*
+                        * LOV_USER_MAGIC_SPECIFIC uses v3 format plus specified
                         * OST list, therefore if pool is not specified we have
-                        * to pack a null pool name for placeholder. */
+                        * to pack a null pool name for placeholder.
+                        */
                        memset(lumv3->lmm_pool_name, 0, LOV_MAXPOOLNAME);
                }
 
@@ -757,11 +720,15 @@ retry_open:
        }
 
        if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lum) != 0) {
-               char *errmsg = "stripe already set";
+               char errmsg[512] = "stripe already set";
 
                rc = -errno;
                if (errno != EEXIST && errno != EALREADY)
-                       errmsg = strerror(errno);
+                       strncpy(errmsg, strerror(errno), sizeof(errmsg) - 1);
+               if (rc == -EREMOTEIO)
+                       snprintf(errmsg, sizeof(errmsg),
+                                "inactive OST among your specified %d OST(s)",
+                                param->lsp_stripe_count);
 
                llapi_err_noerrno(LLAPI_MSG_ERROR,
                                  "setstripe error for '%s': %s", name, errmsg);
@@ -790,43 +757,117 @@ int llapi_file_open_pool(const char *name, int flags, int mode,
 }
 
 int llapi_file_open(const char *name, int flags, int mode,
-                    unsigned long long stripe_size, int stripe_offset,
-                    int stripe_count, int stripe_pattern)
+                   unsigned long long stripe_size, int stripe_offset,
+                   int stripe_count, int stripe_pattern)
 {
-        return llapi_file_open_pool(name, flags, mode, stripe_size,
-                                    stripe_offset, stripe_count,
-                                    stripe_pattern, NULL);
+       return llapi_file_open_pool(name, flags, mode, stripe_size,
+                                   stripe_offset, stripe_count,
+                                   stripe_pattern, NULL);
+}
+
+int llapi_file_create_foreign(const char *name, mode_t mode, __u32 type,
+                             __u32 flags, char *foreign_lov)
+{
+       size_t len;
+       struct lov_foreign_md *lfm;
+       int fd, rc;
+
+       if (foreign_lov == NULL) {
+               rc = -EINVAL;
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "foreign LOV EA content must be provided");
+               goto out_err;
+       }
+
+       len = strlen(foreign_lov);
+       if (len > XATTR_SIZE_MAX - offsetof(struct lov_foreign_md, lfm_value) ||
+           len <= 0) {
+               rc = -EINVAL;
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "foreign LOV EA size %zu (must be 0 < len < %zu)",
+                           len, XATTR_SIZE_MAX -
+                           offsetof(struct lov_foreign_md, lfm_value));
+               goto out_err;
+       }
+
+       lfm = malloc(len + offsetof(struct lov_foreign_md, lfm_value));
+       if (lfm == NULL) {
+               rc = -ENOMEM;
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "failed to allocate lov_foreign_md");
+               goto out_err;
+       }
+
+       fd = open(name, O_WRONLY|O_CREAT|O_LOV_DELAY_CREATE, mode);
+       if (fd == -1) {
+               fd = -errno;
+               llapi_error(LLAPI_MSG_ERROR, fd, "open '%s' failed", name);
+               goto out_free;
+       }
+
+       lfm->lfm_magic = LOV_USER_MAGIC_FOREIGN;
+       lfm->lfm_length = len;
+       lfm->lfm_type = type;
+       lfm->lfm_flags = flags;
+       memcpy(lfm->lfm_value, foreign_lov, len);
+
+       if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lfm) != 0) {
+               char *errmsg = "stripe already set";
+
+               rc = -errno;
+               if (errno == ENOTTY)
+                       errmsg = "not on a Lustre filesystem";
+               else if (errno == EEXIST || errno == EALREADY)
+                       errmsg = "stripe already set";
+               else
+                       errmsg = strerror(errno);
+
+               llapi_err_noerrno(LLAPI_MSG_ERROR,
+                                 "setstripe error for '%s': %s", name, errmsg);
+
+               close(fd);
+               fd = rc;
+       }
+
+out_free:
+       free(lfm);
+
+       return fd;
+
+out_err:
+       errno = -rc;
+       return rc;
 }
 
 int llapi_file_create(const char *name, unsigned long long stripe_size,
-                      int stripe_offset, int stripe_count, int stripe_pattern)
+                     int stripe_offset, int stripe_count, int stripe_pattern)
 {
-        int fd;
+       int fd;
 
-        fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
-                                  stripe_offset, stripe_count, stripe_pattern,
-                                  NULL);
-        if (fd < 0)
-                return fd;
+       fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
+                                 stripe_offset, stripe_count, stripe_pattern,
+                                 NULL);
+       if (fd < 0)
+               return fd;
 
-        close(fd);
-        return 0;
+       close(fd);
+       return 0;
 }
 
 int llapi_file_create_pool(const char *name, unsigned long long stripe_size,
-                           int stripe_offset, int stripe_count,
-                           int stripe_pattern, char *pool_name)
+                          int stripe_offset, int stripe_count,
+                          int stripe_pattern, char *pool_name)
 {
-        int fd;
+       int fd;
 
-        fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
-                                  stripe_offset, stripe_count, stripe_pattern,
-                                  pool_name);
-        if (fd < 0)
-                return fd;
+       fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
+                                 stripe_offset, stripe_count, stripe_pattern,
+                                 pool_name);
+       if (fd < 0)
+               return fd;
 
-        close(fd);
-        return 0;
+       close(fd);
+       return 0;
 }
 
 static int verify_dir_param(const char *name,
@@ -854,8 +895,10 @@ static int verify_dir_param(const char *name,
 
        /* Make sure we have a good pool */
        if (pool_name != NULL) {
-               /* in case user gives the full pool name <fsname>.<poolname>,
-                * strip the fsname */
+               /*
+                * in case user gives the full pool name <fsname>.<poolname>,
+                * strip the fsname
+                */
                char *ptr = strchr(pool_name, '.');
 
                if (ptr != NULL) {
@@ -883,7 +926,7 @@ static int verify_dir_param(const char *name,
 
        /* sanity check of target list */
        if (param->lsp_is_specific) {
-               char mdtname[MAX_OBD_NAME + 1];
+               char mdtname[MAX_OBD_NAME + 64];
                bool found = false;
                int i;
 
@@ -909,8 +952,7 @@ static int verify_dir_param(const char *name,
                }
                if (!found) {
                        llapi_error(LLAPI_MSG_ERROR, -EINVAL,
-                                   "%s: stripe offset '%d' is not in the "
-                                   "target list",
+                                   "%s: stripe offset '%d' is not in the target list",
                                    __func__, param->lsp_stripe_offset);
                        return -EINVAL;
                }
@@ -964,6 +1006,7 @@ int llapi_dir_set_default_lmv(const char *name,
        rc = ioctl(fd, LL_IOC_LMV_SET_DEFAULT_STRIPE, &lmu);
        if (rc < 0) {
                char *errmsg = "stripe already set";
+
                rc = -errno;
                if (errno != EEXIST && errno != EALREADY)
                        errmsg = strerror(errno);
@@ -1083,6 +1126,106 @@ out:
        return rc;
 }
 
+/**
+ * Create a foreign directory.
+ *
+ * \param name     the name of the directory to be created
+ * \param mode     permission of the file if it is created, see mode in open(2)
+ * \param type     foreign type to be set in LMV EA
+ * \param flags    foreign flags to be set in LMV EA
+ * \param value    foreign pattern to be set in LMV EA
+ *
+ * \retval         0 on success
+ * \retval         negative errno on failure
+ */
+int llapi_dir_create_foreign(const char *name, mode_t mode, __u32 type,
+                            __u32 flags, const char *value)
+{
+       struct lmv_foreign_md *lfm = NULL;
+       size_t lfm_size, len;
+       struct obd_ioctl_data data = { 0 };
+       char rawbuf[8192];
+       char *buf = rawbuf;
+       char *dirpath = NULL;
+       char *namepath = NULL;
+       char *dir;
+       char *filename;
+       int fd, rc;
+
+       len = strlen(value);
+       if (len > XATTR_SIZE_MAX - offsetof(struct lmv_foreign_md, lfm_value) ||
+           len <= 0) {
+               rc = -EINVAL;
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "invalid LOV EA length %zu (must be 0 < len < %zu)",
+                           len, XATTR_SIZE_MAX -
+                           offsetof(struct lmv_foreign_md, lfm_value));
+               return rc;
+       }
+       lfm_size = len + offsetof(struct lmv_foreign_md, lfm_value);
+       lfm = calloc(1, lfm_size);
+       if (lfm == NULL)
+               return -ENOMEM;
+
+       dirpath = strdup(name);
+       if (!dirpath) {
+               free(lfm);
+               return -ENOMEM;
+       }
+
+       namepath = strdup(name);
+       if (!namepath) {
+               free(dirpath);
+               free(lfm);
+               return -ENOMEM;
+       }
+
+       lfm->lfm_magic = LMV_MAGIC_FOREIGN;
+       lfm->lfm_length = len;
+       lfm->lfm_type = type;
+       lfm->lfm_flags = flags;
+       memcpy(lfm->lfm_value, value, len);
+
+       filename = basename(namepath);
+       dir = dirname(dirpath);
+
+       data.ioc_inlbuf1 = (char *)filename;
+       data.ioc_inllen1 = strlen(filename) + 1;
+       data.ioc_inlbuf2 = (char *)lfm;
+       data.ioc_inllen2 = lfm_size;
+       data.ioc_type = mode;
+       rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
+       if (rc) {
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "error: LL_IOC_LMV_SETSTRIPE pack failed '%s'.",
+                           name);
+               goto out;
+       }
+
+       fd = open(dir, O_DIRECTORY | O_RDONLY);
+       if (fd < 0) {
+               rc = -errno;
+               llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
+               goto out;
+       }
+
+       if (ioctl(fd, LL_IOC_LMV_SETSTRIPE, buf)) {
+               char *errmsg = "stripe already set";
+
+               rc = -errno;
+               if (errno != EEXIST && errno != EALREADY)
+                       errmsg = strerror(errno);
+
+               llapi_err_noerrno(LLAPI_MSG_ERROR,
+                                 "dirstripe error on '%s': %s", name, errmsg);
+       }
+       close(fd);
+out:
+       free(namepath);
+       free(dirpath);
+       free(lfm);
+       return rc;
+}
 
 int llapi_dir_create_pool(const char *name, int mode, int stripe_offset,
                          int stripe_count, int stripe_pattern,
@@ -1124,13 +1267,10 @@ int llapi_direntry_remove(char *dname)
                goto out;
        }
 
-       if (ioctl(fd, LL_IOC_REMOVE_ENTRY, filename)) {
-               char *errmsg = strerror(errno);
-               llapi_err_noerrno(LLAPI_MSG_ERROR,
-                                 "error on ioctl %#jx for '%s' (%d): %s",
-                                 (uintmax_t)LL_IOC_LMV_SETSTRIPE, filename,
-                                 fd, errmsg);
-       }
+       if (ioctl(fd, LL_IOC_REMOVE_ENTRY, filename))
+               llapi_error(LLAPI_MSG_ERROR, errno,
+                           "error on ioctl %#lx for '%s' (%d)",
+                           (long)LL_IOC_LMV_SETSTRIPE, filename, fd);
 out:
        free(dirpath);
        free(namepath);
@@ -1149,10 +1289,11 @@ int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
        char buf[PATH_MAX], mntdir[PATH_MAX];
        char *ptr, *ptr_end;
        FILE *fp;
-       int idx = 0, len = 0, mntlen, fd;
+       int idx = 0, mntlen = 0, fd;
        int rc = -ENODEV;
+       int fsnamelen, mountlen;
 
-        /* get the mount point */
+       /* get the mount point */
        fp = setmntent(PROC_MOUNTS, "r");
        if (fp == NULL) {
                rc = -EIO;
@@ -1160,23 +1301,25 @@ int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
                            "cannot retrieve filesystem mount point");
                return rc;
        }
-        while (1) {
-                if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
-                        break;
+       while (1) {
+               if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
+                       break;
 
-                if (!llapi_is_lustre_mnt(&mnt))
-                        continue;
+               if (!llapi_is_lustre_mnt(&mnt))
+                       continue;
 
-                if ((want & WANT_INDEX) && (idx++ != index))
-                        continue;
+               if ((want & WANT_INDEX) && (idx++ != index))
+                       continue;
 
-                mntlen = strlen(mnt.mnt_dir);
+               mntlen = strlen(mnt.mnt_dir);
                ptr = strchr(mnt.mnt_fsname, '/');
                while (ptr && *ptr == '/')
                        ptr++;
-               /* thanks to the call to llapi_is_lustre_mnt() above,
+               /*
+                * thanks to the call to llapi_is_lustre_mnt() above,
                 * we are sure that mnt.mnt_fsname contains ":/",
-                * so ptr should never be NULL */
+                * so ptr should never be NULL
+                */
                if (ptr == NULL)
                        continue;
                ptr_end = ptr;
@@ -1184,32 +1327,37 @@ int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
                        ptr_end++;
 
                /* Check the fsname for a match, if given */
-                if (!(want & WANT_FSNAME) && fsname != NULL &&
-                   (strlen(fsname) > 0) &&
-                   (strncmp(ptr, fsname, ptr_end - ptr) != 0))
-                        continue;
+               mountlen = ptr_end - ptr;
+               if (!(want & WANT_FSNAME) && fsname != NULL &&
+                   (fsnamelen = strlen(fsname)) > 0 &&
+                   (fsnamelen != mountlen ||
+                   (strncmp(ptr, fsname, mountlen) != 0)))
+                       continue;
 
-                /* If the path isn't set return the first one we find */
+               /* If the path isn't set return the first one we find */
                if (path == NULL || strlen(path) == 0) {
-                       strncpy(mntdir, mnt.mnt_dir, strlen(mnt.mnt_dir));
-                       mntdir[strlen(mnt.mnt_dir)] = '\0';
+                       strncpy(mntdir, mnt.mnt_dir, sizeof(mntdir) - 1);
+                       mntdir[sizeof(mntdir) - 1] = '\0';
                        if ((want & WANT_FSNAME) && fsname != NULL) {
-                               strncpy(fsname, ptr, ptr_end - ptr);
-                               fsname[ptr_end - ptr] = '\0';
+                               strncpy(fsname, ptr, mountlen);
+                               fsname[mountlen] = '\0';
                        }
                        rc = 0;
                        break;
                /* Otherwise find the longest matching path */
-               } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
+               } else if ((strlen(path) >= mntlen) &&
                           (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
-                       strncpy(mntdir, mnt.mnt_dir, strlen(mnt.mnt_dir));
-                       mntdir[strlen(mnt.mnt_dir)] = '\0';
-                       len = mntlen;
+                       /* check the path format */
+                       if (strlen(path) > mntlen && path[mntlen] != '/')
+                               continue;
+                       strncpy(mntdir, mnt.mnt_dir, sizeof(mntdir) - 1);
+                       mntdir[sizeof(mntdir) - 1] = '\0';
                        if ((want & WANT_FSNAME) && fsname != NULL) {
-                               strncpy(fsname, ptr, ptr_end - ptr);
-                               fsname[ptr_end - ptr] = '\0';
+                               strncpy(fsname, ptr, mountlen);
+                               fsname[mountlen] = '\0';
                        }
                        rc = 0;
+                       break;
                }
        }
        endmntent(fp);
@@ -1217,16 +1365,15 @@ int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
        /* Found it */
        if (rc == 0) {
                if ((want & WANT_PATH) && path != NULL) {
-                       strncpy(path, mntdir, strlen(mntdir));
-                       path[strlen(mntdir)] = '\0';
+                       strncpy(path, mntdir, mntlen);
+                       path[mntlen] = '\0';
                }
                if (want & WANT_FD) {
                        fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
                        if (fd < 0) {
                                rc = -errno;
                                llapi_error(LLAPI_MSG_ERROR, rc,
-                                           "cannot open '%s': %s", mntdir,
-                                           strerror(-rc));
+                                           "cannot open '%s'", mntdir);
 
                        } else {
                                *outfd = fd;
@@ -1252,29 +1399,30 @@ int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
  * See function lfs_osts in lfs.c for an example of the index use.
  */
 int llapi_search_mounts(const char *pathname, int index, char *mntdir,
-                        char *fsname)
+                       char *fsname)
 {
-        int want = WANT_PATH, idx = -1;
+       int want = WANT_PATH, idx = -1;
 
-        if (!pathname || pathname[0] == '\0') {
-                want |= WANT_INDEX;
-                idx = index;
-        } else
-                strcpy(mntdir, pathname);
+       if (!pathname || pathname[0] == '\0') {
+               want |= WANT_INDEX;
+               idx = index;
+       } else {
+               strcpy(mntdir, pathname);
+       }
 
-        if (fsname)
-                want |= WANT_FSNAME;
-        return get_root_path(want, fsname, NULL, mntdir, idx);
+       if (fsname)
+               want |= WANT_FSNAME;
+       return get_root_path(want, fsname, NULL, mntdir, idx);
 }
 
 /* Given a path, find the corresponding Lustre fsname */
 int llapi_search_fsname(const char *pathname, char *fsname)
 {
-        char *path;
-        int rc;
+       char *path;
+       int rc;
 
-        path = realpath(pathname, NULL);
-        if (path == NULL) {
+       path = realpath(pathname, NULL);
+       if (path == NULL) {
                char tmp[PATH_MAX - 1];
                char buf[PATH_MAX];
                char *ptr;
@@ -1282,10 +1430,12 @@ int llapi_search_fsname(const char *pathname, char *fsname)
                tmp[0] = '\0';
                buf[0] = '\0';
                if (pathname[0] != '/') {
-                       /* Need an absolute path, but realpath() only works for
+                       /*
+                        * Need an absolute path, but realpath() only works for
                         * pathnames that actually exist.  We go through the
                         * extra hurdle of dirname(getcwd() + pathname) in
-                        * case the relative pathname contains ".." in it. */
+                        * case the relative pathname contains ".." in it.
+                        */
                        char realpath[PATH_MAX - 1];
 
                        if (getcwd(realpath, sizeof(realpath) - 2) == NULL) {
@@ -1340,41 +1490,12 @@ int llapi_search_fsname(const char *pathname, char *fsname)
 
 int llapi_search_rootpath(char *pathname, const char *fsname)
 {
-       return get_root_path(WANT_PATH, (char *)fsname, NULL, pathname, -1);
-}
-
-int llapi_getname(const char *path, char *buf, size_t size)
-{
-       struct obd_uuid uuid_buf;
-       char *uuid = uuid_buf.uuid;
-       char *cfg_instance;
-       int rc, len, fsname_len;
-
-       memset(&uuid_buf, 0, sizeof(uuid_buf));
-       rc = llapi_file_get_lov_uuid(path, &uuid_buf);
-       if (rc)
-               return rc;
-
        /*
-        * We want to turn testfs-clilov-ffff88002738bc00 into
-        * testfs-ffff88002738bc00 in a portable way that doesn't depend
-        * on what is after "-clilov-" as it may change in the future.
-        * Unfortunately, the "fsname" part may contain a dash, so we
-        * can't just skip to the first dash, and the "instance" may be a
-        * UUID in the future, so we can't necessarily go to the last dash.
+        * pathname can be used as an argument by get_root_path(),
+        * clear it for safety
         */
-       cfg_instance = strstr(uuid, "-clilov-");
-       if (!cfg_instance)
-               return -EINVAL;
-
-       fsname_len = cfg_instance - uuid;
-       cfg_instance += strlen("-clilov-");
-       len = snprintf(buf, size, "%.*s-%s", fsname_len, uuid, cfg_instance);
-
-       if (len >= size)
-               rc = -ENAMETOOLONG;
-
-       return rc;
+       pathname[0] = 0;
+       return get_root_path(WANT_PATH, (char *)fsname, NULL, pathname, -1);
 }
 
 /**
@@ -1389,7 +1510,7 @@ int llapi_getname(const char *path, char *buf, size_t size)
  * \retval -error failure
  */
 int llapi_get_poolmembers(const char *poolname, char **members,
-                          int list_size, char *buffer, int buffer_size)
+                         int list_size, char *buffer, int buffer_size)
 {
        char fsname[PATH_MAX];
        char *pool, *tmp;
@@ -1432,31 +1553,31 @@ int llapi_get_poolmembers(const char *poolname, char **members,
                return rc;
        }
 
-        rc = 0;
-        while (fgets(buf, sizeof(buf), fd) != NULL) {
-                if (nb_entries >= list_size) {
-                        rc = -EOVERFLOW;
-                        break;
-                }
+       rc = 0;
+       while (fgets(buf, sizeof(buf), fd) != NULL) {
+               if (nb_entries >= list_size) {
+                       rc = -EOVERFLOW;
+                       break;
+               }
                buf[sizeof(buf) - 1] = '\0';
-                /* remove '\n' */
-                tmp = strchr(buf, '\n');
-                if (tmp != NULL)
-                        *tmp='\0';
-                if (used + strlen(buf) + 1 > buffer_size) {
-                        rc = -EOVERFLOW;
-                        break;
-                }
-
-                strcpy(buffer + used, buf);
-                members[nb_entries] = buffer + used;
-                used += strlen(buf) + 1;
-                nb_entries++;
-                rc = nb_entries;
-        }
-
-        fclose(fd);
-        return rc;
+               /* remove '\n' */
+               tmp = strchr(buf, '\n');
+               if (tmp != NULL)
+                       *tmp = '\0';
+               if (used + strlen(buf) + 1 > buffer_size) {
+                       rc = -EOVERFLOW;
+                       break;
+               }
+
+               strcpy(buffer + used, buf);
+               members[nb_entries] = buffer + used;
+               used += strlen(buf) + 1;
+               nb_entries++;
+               rc = nb_entries;
+       }
+
+       fclose(fd);
+       return rc;
 }
 
 /**
@@ -1471,49 +1592,47 @@ int llapi_get_poolmembers(const char *poolname, char **members,
  * \retval -error failure
  */
 int llapi_get_poollist(const char *name, char **poollist, int list_size,
-                       char *buffer, int buffer_size)
+                      char *buffer, int buffer_size)
 {
-       char rname[PATH_MAX];
        glob_t pathname;
        char *fsname;
-        char *ptr;
-        DIR *dir;
+       char *ptr;
+       DIR *dir;
        struct dirent *pool;
-        int rc = 0;
-        unsigned int nb_entries = 0;
-        unsigned int used = 0;
-        unsigned int i;
+       int rc = 0;
+       unsigned int nb_entries = 0;
+       unsigned int used = 0;
+       unsigned int i;
 
        /* initialize output array */
-        for (i = 0; i < list_size; i++)
-                poollist[i] = NULL;
-
-        /* is name a pathname ? */
-        ptr = strchr(name, '/');
-        if (ptr != NULL) {
-                /* only absolute pathname is supported */
-                if (*name != '/')
-                        return -EINVAL;
-
-                if (!realpath(name, rname)) {
-                        rc = -errno;
-                        llapi_error(LLAPI_MSG_ERROR, rc, "invalid path '%s'",
-                                    name);
-                        return rc;
-                }
-
-               fsname = strdup(rname);
+       for (i = 0; i < list_size; i++)
+               poollist[i] = NULL;
+
+       /* is name a pathname ? */
+       ptr = strchr(name, '/');
+       if (ptr != NULL) {
+               char fsname_buf[MAXNAMLEN];
+
+               /* We will need fsname for printing later */
+               rc = llapi_getname(name, fsname_buf, sizeof(fsname_buf));
+               if (rc)
+                       return rc;
+
+               ptr = strrchr(fsname_buf, '-');
+               if (ptr)
+                       *ptr = '\0';
+
+               fsname = strdup(fsname_buf);
                if (!fsname)
                        return -ENOMEM;
-
-               rc = poolpath(&pathname, NULL, rname);
        } else {
                /* name is FSNAME */
                fsname = strdup(name);
                if (!fsname)
                        return -ENOMEM;
-               rc = poolpath(&pathname, fsname, NULL);
        }
+
+       rc = poolpath(&pathname, fsname, NULL);
        if (rc != 0) {
                llapi_error(LLAPI_MSG_ERROR, rc,
                            "Lustre filesystem '%s' not found", name);
@@ -1537,17 +1656,17 @@ int llapi_get_poollist(const char *name, char **poollist, int list_size,
                        goto free_dir;
                }
 
-                /* ignore . and .. */
+               /* ignore . and .. */
                if (!strcmp(pool->d_name, ".") || !strcmp(pool->d_name, ".."))
-                        continue;
+                       continue;
 
-                /* check output bounds */
+               /* check output bounds */
                if (nb_entries >= list_size) {
                        rc = -EOVERFLOW;
                        goto free_dir_no_msg;
                }
 
-                /* +2 for '.' and final '\0' */
+               /* +2 for '.' and final '\0' */
                if (used + strlen(pool->d_name) + strlen(fsname) + 2
                    > buffer_size) {
                        rc = -EOVERFLOW;
@@ -1555,9 +1674,9 @@ int llapi_get_poollist(const char *name, char **poollist, int list_size,
                }
 
                sprintf(buffer + used, "%s.%s", fsname, pool->d_name);
-                poollist[nb_entries] = buffer + used;
+               poollist[nb_entries] = buffer + used;
                used += strlen(pool->d_name) + strlen(fsname) + 2;
-                nb_entries++;
+               nb_entries++;
        } while (1);
 
 free_dir:
@@ -1579,8 +1698,10 @@ free_path:
 /* wrapper for lfs.c and obd.c */
 int llapi_poollist(const char *name)
 {
-       /* list of pool names (assume that pool count is smaller
-          than OST count) */
+       /*
+        * list of pool names (assume that pool count is smaller
+        * than OST count)
+        */
        char **list, *buffer = NULL, *fsname = (char *)name;
        char *poolname = NULL, *tmp = NULL, data[16];
        enum param_filter type = FILTER_BY_PATH;
@@ -1606,40 +1727,42 @@ int llapi_poollist(const char *name)
                goto err;
        obdcount = atoi(data);
 
-        /* Allocate space for each fsname-OST0000_UUID, 1 per OST,
-         * and also an array to store the pointers for all that
-         * allocated space. */
+       /*
+        * Allocate space for each fsname-OST0000_UUID, 1 per OST,
+        * and also an array to store the pointers for all that
+        * allocated space.
+        */
 retry_get_pools:
-        bufsize = sizeof(struct obd_uuid) * obdcount;
-        buffer = realloc(tmp, bufsize + sizeof(*list) * obdcount);
-        if (buffer == NULL) {
-                rc = -ENOMEM;
-                goto err;
-        }
-        list = (char **) (buffer + bufsize);
-
-        if (!poolname) {
-                /* name is a path or fsname */
-                nb = llapi_get_poollist(name, list, obdcount,
-                                        buffer, bufsize);
-        } else {
-                /* name is a pool name (<fsname>.<poolname>) */
-                nb = llapi_get_poolmembers(name, list, obdcount,
-                                           buffer, bufsize);
-        }
-
-        if (nb == -EOVERFLOW) {
-                obdcount *= 2;
-                tmp = buffer;
-                goto retry_get_pools;
-        }
-
-        for (i = 0; i < nb; i++)
-                llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
-        rc = (nb < 0 ? nb : 0);
+       bufsize = sizeof(struct obd_uuid) * obdcount;
+       buffer = realloc(tmp, bufsize + sizeof(*list) * obdcount);
+       if (buffer == NULL) {
+               rc = -ENOMEM;
+               goto err;
+       }
+       list = (char **) (buffer + bufsize);
+
+       if (!poolname) {
+               /* name is a path or fsname */
+               nb = llapi_get_poollist(name, list, obdcount,
+                                       buffer, bufsize);
+       } else {
+               /* name is a pool name (<fsname>.<poolname>) */
+               nb = llapi_get_poolmembers(name, list, obdcount,
+                                          buffer, bufsize);
+       }
+
+       if (nb == -EOVERFLOW) {
+               obdcount *= 2;
+               tmp = buffer;
+               goto retry_get_pools;
+       }
+
+       for (i = 0; i < nb; i++)
+               llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
+       rc = (nb < 0 ? nb : 0);
 err:
-        if (buffer)
-                free(buffer);
+       if (buffer)
+               free(buffer);
        if (fsname != NULL && type == FILTER_BY_FS_NAME)
                free(fsname);
        return rc;
@@ -1648,7 +1771,28 @@ err:
 typedef int (semantic_func_t)(char *path, DIR *parent, DIR **d,
                              void *data, struct dirent64 *de);
 
-#define OBD_NOT_FOUND           (-1)
+#define OBD_NOT_FOUND           (-1)
+
+static void find_param_fini(struct find_param *param)
+{
+       if (param->fp_migrate)
+               return;
+
+       if (param->fp_obd_indexes) {
+               free(param->fp_obd_indexes);
+               param->fp_obd_indexes = NULL;
+       }
+
+       if (param->fp_lmd) {
+               free(param->fp_lmd);
+               param->fp_lmd = NULL;
+       }
+
+       if (param->fp_lmv_md) {
+               free(param->fp_lmv_md);
+               param->fp_lmv_md = NULL;
+       }
+}
 
 static int common_param_init(struct find_param *param, char *path)
 {
@@ -1665,10 +1809,11 @@ static int common_param_init(struct find_param *param, char *path)
                lum_size = PATH_MAX + 1;
 
        param->fp_lum_size = lum_size;
-       param->fp_lmd = calloc(1, sizeof(lstat_t) + lum_size);
+       param->fp_lmd = calloc(1, offsetof(typeof(*param->fp_lmd), lmd_lmm) +
+                              lum_size);
        if (param->fp_lmd == NULL) {
                llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
-                           "error: allocation of %zu bytes for ioctl",
+                           "error: allocate %zu bytes for layout failed",
                            sizeof(lstat_t) + param->fp_lum_size);
                return -ENOMEM;
        }
@@ -1682,6 +1827,7 @@ static int common_param_init(struct find_param *param, char *path)
                            "error: allocation of %d bytes for ioctl",
                            lmv_user_md_size(param->fp_lmv_stripe_count,
                                             LMV_USER_MAGIC_SPECIFIC));
+               find_param_fini(param);
                return -ENOMEM;
        }
 
@@ -1692,27 +1838,12 @@ static int common_param_init(struct find_param *param, char *path)
        return 0;
 }
 
-static void find_param_fini(struct find_param *param)
-{
-       if (param->fp_migrate)
-               return;
-
-       if (param->fp_obd_indexes)
-               free(param->fp_obd_indexes);
-
-       if (param->fp_lmd)
-               free(param->fp_lmd);
-
-       if (param->fp_lmv_md)
-               free(param->fp_lmv_md);
-}
-
 static int cb_common_fini(char *path, DIR *parent, DIR **dirp, void *data,
                          struct dirent64 *de)
 {
        struct find_param *param = data;
-       param->fp_depth--;
 
+       param->fp_depth--;
        return 0;
 }
 
@@ -1750,7 +1881,26 @@ again:
                int stripe_count;
                int lmv_size;
 
-               stripe_count = (__u32)param->fp_lmv_md->lum_stripe_count;
+               /* if foreign LMV case, fake stripes number */
+               if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
+                       struct lmv_foreign_md *lfm;
+
+                       lfm = (struct lmv_foreign_md *)param->fp_lmv_md;
+                       if (lfm->lfm_length < XATTR_SIZE_MAX -
+                           offsetof(typeof(*lfm), lfm_value)) {
+                               uint32_t size = lfm->lfm_length +
+                                            offsetof(typeof(*lfm), lfm_value);
+
+                               stripe_count = lmv_foreign_to_md_stripes(size);
+                       } else {
+                               llapi_error(LLAPI_MSG_ERROR, -EINVAL,
+                                           "error: invalid %d foreign size returned from ioctl",
+                                           lfm->lfm_length);
+                               return -EINVAL;
+                       }
+               } else {
+                       stripe_count = param->fp_lmv_md->lum_stripe_count;
+               }
                if (stripe_count <= param->fp_lmv_stripe_count)
                        return ret;
 
@@ -1771,11 +1921,74 @@ again:
        return ret;
 }
 
-int get_lmd_info_fd(char *path, int parent_fd, int dir_fd,
+static void convert_lmd_statx(struct lov_user_mds_data *lmd_v2, lstat_t *st,
+                             bool strict)
+{
+       memset(&lmd_v2->lmd_stx, 0, sizeof(lmd_v2->lmd_stx));
+       lmd_v2->lmd_stx.stx_blksize = st->st_blksize;
+       lmd_v2->lmd_stx.stx_nlink = st->st_nlink;
+       lmd_v2->lmd_stx.stx_uid = st->st_uid;
+       lmd_v2->lmd_stx.stx_gid = st->st_gid;
+       lmd_v2->lmd_stx.stx_mode = st->st_mode;
+       lmd_v2->lmd_stx.stx_ino = st->st_ino;
+       lmd_v2->lmd_stx.stx_size = st->st_size;
+       lmd_v2->lmd_stx.stx_blocks = st->st_blocks;
+       lmd_v2->lmd_stx.stx_atime.tv_sec = st->st_atime;
+       lmd_v2->lmd_stx.stx_ctime.tv_sec = st->st_ctime;
+       lmd_v2->lmd_stx.stx_mtime.tv_sec = st->st_mtime;
+       lmd_v2->lmd_stx.stx_rdev_major = major(st->st_rdev);
+       lmd_v2->lmd_stx.stx_rdev_minor = minor(st->st_rdev);
+       lmd_v2->lmd_stx.stx_dev_major = major(st->st_dev);
+       lmd_v2->lmd_stx.stx_dev_minor = minor(st->st_dev);
+       lmd_v2->lmd_stx.stx_mask |= STATX_BASIC_STATS;
+
+       lmd_v2->lmd_flags = 0;
+       if (strict) {
+               lmd_v2->lmd_flags |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
+       } else {
+               lmd_v2->lmd_stx.stx_mask &= ~(STATX_SIZE | STATX_BLOCKS);
+               if (lmd_v2->lmd_stx.stx_size)
+                       lmd_v2->lmd_flags |= OBD_MD_FLLAZYSIZE;
+               if (lmd_v2->lmd_stx.stx_blocks)
+                       lmd_v2->lmd_flags |= OBD_MD_FLLAZYBLOCKS;
+       }
+       lmd_v2->lmd_flags |= OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME |
+                            OBD_MD_FLBLKSZ | OBD_MD_FLMODE | OBD_MD_FLTYPE |
+                            OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLNLINK |
+                            OBD_MD_FLRDEV;
+
+}
+
+static int convert_lmdbuf_v1v2(void *lmdbuf, int lmdlen)
+{
+       struct lov_user_mds_data_v1 *lmd_v1 = lmdbuf;
+       struct lov_user_mds_data *lmd_v2 = lmdbuf;
+       lstat_t st;
+       int size;
+
+       size = lov_comp_md_size((struct lov_comp_md_v1 *)&lmd_v1->lmd_lmm);
+       if (size < 0)
+               return size;
+
+       if (lmdlen < sizeof(lmd_v1->lmd_st) + size)
+               return -EOVERFLOW;
+
+       st = lmd_v1->lmd_st;
+       memmove(&lmd_v2->lmd_lmm, &lmd_v1->lmd_lmm,
+               lmdlen - (&lmd_v2->lmd_lmm - &lmd_v1->lmd_lmm));
+       convert_lmd_statx(lmd_v2, &st, false);
+       lmd_v2->lmd_lmmsize = 0;
+       lmd_v2->lmd_padding = 0;
+
+       return 0;
+}
+
+int get_lmd_info_fd(const char *path, int parent_fd, int dir_fd,
                    void *lmdbuf, int lmdlen, enum get_lmd_info_type type)
 {
        struct lov_user_mds_data *lmd = lmdbuf;
-       lstat_t *st = &lmd->lmd_st;
+       static bool use_old_ioctl;
+       unsigned long cmd;
        int ret = 0;
 
        if (parent_fd < 0 && dir_fd < 0)
@@ -1784,17 +1997,32 @@ int get_lmd_info_fd(char *path, int parent_fd, int dir_fd,
                return -EINVAL;
 
        if (dir_fd >= 0) {
-               /* LL_IOC_MDC_GETINFO operates on the current directory inode
+               /*
+                * LL_IOC_MDC_GETINFO operates on the current directory inode
                 * and returns struct lov_user_mds_data, while
                 * LL_IOC_LOV_GETSTRIPE returns only struct lov_user_md.
                 */
-               ret = ioctl(dir_fd, type == GET_LMD_INFO ? LL_IOC_MDC_GETINFO :
-                                                          LL_IOC_LOV_GETSTRIPE,
-                           lmdbuf);
+               if (type == GET_LMD_INFO)
+                       cmd = use_old_ioctl ? LL_IOC_MDC_GETINFO_OLD :
+                                             LL_IOC_MDC_GETINFO;
+               else
+                       cmd = LL_IOC_LOV_GETSTRIPE;
+
+retry_getinfo:
+               ret = ioctl(dir_fd, cmd, lmdbuf);
+               if (ret < 0 && errno == ENOTTY && cmd == LL_IOC_MDC_GETINFO) {
+                       cmd = LL_IOC_MDC_GETINFO_OLD;
+                       use_old_ioctl = true;
+                       goto retry_getinfo;
+               }
+
+               if (cmd == LL_IOC_MDC_GETINFO_OLD && !ret)
+                       ret = convert_lmdbuf_v1v2(lmdbuf, lmdlen);
        } else if (parent_fd >= 0) {
-               char *fname = strrchr(path, '/');
+               const char *fname = strrchr(path, '/');
 
-               /* IOC_MDC_GETFILEINFO takes as input the filename (relative to
+               /*
+                * IOC_MDC_GETFILEINFO takes as input the filename (relative to
                 * the parent directory) and returns struct lov_user_mds_data,
                 * while IOC_MDC_GETFILESTRIPE returns only struct lov_user_md.
                 *
@@ -1812,24 +2040,50 @@ int get_lmd_info_fd(char *path, int parent_fd, int dir_fd,
                        errno = -ret;
                else if (ret >= lmdlen || ret++ == 0)
                        errno = EINVAL;
-               else
-                       ret = ioctl(parent_fd, type == GET_LMD_INFO ?
-                                               IOC_MDC_GETFILEINFO :
-                                               IOC_MDC_GETFILESTRIPE, lmdbuf);
+               else {
+                       if (type == GET_LMD_INFO)
+                               cmd = use_old_ioctl ? IOC_MDC_GETFILEINFO_OLD :
+                                                     IOC_MDC_GETFILEINFO;
+                       else
+                               cmd = IOC_MDC_GETFILESTRIPE;
+
+retry_getfileinfo:
+                       ret = ioctl(parent_fd, cmd, lmdbuf);
+                       if (ret < 0 && errno == ENOTTY &&
+                           cmd == IOC_MDC_GETFILEINFO) {
+                               cmd = IOC_MDC_GETFILEINFO_OLD;
+                               use_old_ioctl = true;
+                               goto retry_getfileinfo;
+                       }
+
+                       if (cmd == IOC_MDC_GETFILEINFO_OLD && !ret)
+                               ret = convert_lmdbuf_v1v2(lmdbuf, lmdlen);
+               }
        }
 
        if (ret && type == GET_LMD_INFO) {
                if (errno == ENOTTY) {
-                       /* ioctl is not supported, it is not a lustre fs.
+                       lstat_t st;
+
+                       /*
+                        * ioctl is not supported, it is not a lustre fs.
                         * Do the regular lstat(2) instead.
                         */
-                       ret = lstat_f(path, st);
+                       ret = lstat_f(path, &st);
                        if (ret) {
                                ret = -errno;
                                llapi_error(LLAPI_MSG_ERROR, ret,
                                            "error: %s: lstat failed for %s",
                                            __func__, path);
                        }
+
+                       convert_lmd_statx(lmd, &st, true);
+                       /*
+                        * It may be wrong to set use_old_ioctl with true as
+                        * the file is not a lustre fs. So reset it with false
+                        * directly here.
+                        */
+                       use_old_ioctl = false;
                } else if (errno == ENOENT) {
                        ret = -errno;
                        llapi_error(LLAPI_MSG_WARN, ret,
@@ -1873,20 +2127,20 @@ static int llapi_semantic_traverse(char *path, int size, DIR *parent,
        ret = 0;
        len = strlen(path);
 
-        d = opendir(path);
-        if (!d && errno != ENOTDIR) {
-                ret = -errno;
-                llapi_error(LLAPI_MSG_ERROR, ret, "%s: Failed to open '%s'",
-                            __func__, path);
-                return ret;
-        } else if (!d && !parent) {
-                /* ENOTDIR. Open the parent dir. */
-                p = opendir_parent(path);
+       d = opendir(path);
+       if (!d && errno != ENOTDIR) {
+               ret = -errno;
+               llapi_error(LLAPI_MSG_ERROR, ret, "%s: Failed to open '%s'",
+                           __func__, path);
+               return ret;
+       } else if (!d && !parent) {
+               /* ENOTDIR. Open the parent dir. */
+               p = opendir_parent(path);
                if (!p) {
                        ret = -errno;
                        goto out;
                }
-        }
+       }
 
        if (sem_init && (ret = sem_init(path, parent ?: p, &d, data, de)))
                goto err;
@@ -1911,24 +2165,24 @@ static int llapi_semantic_traverse(char *path, int size, DIR *parent,
                strcat(path, dent->d_name);
 
                if (dent->d_type == DT_UNKNOWN) {
-                       lstat_t *st = &param->fp_lmd->lmd_st;
+                       struct lov_user_mds_data *lmd = param->fp_lmd;
 
-                       rc = get_lmd_info(path, d, NULL, param->fp_lmd,
+                       rc = get_lmd_info(path, d, NULL, lmd,
                                          param->fp_lum_size, GET_LMD_INFO);
                        if (rc == 0)
-                               dent->d_type = IFTODT(st->st_mode);
+                               dent->d_type = IFTODT(lmd->lmd_stx.stx_mode);
                        else if (ret == 0)
                                ret = rc;
 
                        if (rc == -ENOENT)
                                continue;
                }
-                switch (dent->d_type) {
-                case DT_UNKNOWN:
-                        llapi_err_noerrno(LLAPI_MSG_ERROR,
-                                          "error: %s: '%s' is UNKNOWN type %d",
-                                          __func__, dent->d_name, dent->d_type);
-                        break;
+               switch (dent->d_type) {
+               case DT_UNKNOWN:
+                       llapi_err_noerrno(LLAPI_MSG_ERROR,
+                                         "error: %s: '%s' is UNKNOWN type %d",
+                                         __func__, dent->d_name, dent->d_type);
+                       break;
                case DT_DIR:
                        rc = llapi_semantic_traverse(path, size, d, sem_init,
                                                      sem_fini, data, dent);
@@ -1946,52 +2200,52 @@ static int llapi_semantic_traverse(char *path, int size, DIR *parent,
                        }
                        if (sem_fini && rc == 0)
                                sem_fini(path, d, NULL, data, dent);
-                }
-        }
+               }
+       }
 
 out:
-        path[len] = 0;
+       path[len] = 0;
 
        if (sem_fini)
                sem_fini(path, parent, &d, data, de);
 err:
-        if (d)
-                closedir(d);
-        if (p)
-                closedir(p);
+       if (d)
+               closedir(d);
+       if (p)
+               closedir(p);
        return ret;
 }
 
 static int param_callback(char *path, semantic_func_t sem_init,
-                          semantic_func_t sem_fini, struct find_param *param)
+                         semantic_func_t sem_fini, struct find_param *param)
 {
-        int ret, len = strlen(path);
-        char *buf;
+       int ret, len = strlen(path);
+       char *buf;
 
-        if (len > PATH_MAX) {
-                ret = -EINVAL;
-                llapi_error(LLAPI_MSG_ERROR, ret,
-                            "Path name '%s' is too long", path);
-                return ret;
-        }
+       if (len > PATH_MAX) {
+               ret = -EINVAL;
+               llapi_error(LLAPI_MSG_ERROR, ret,
+                           "Path name '%s' is too long", path);
+               return ret;
+       }
 
-        buf = (char *)malloc(PATH_MAX + 1);
-        if (!buf)
-                return -ENOMEM;
+       buf = (char *)malloc(PATH_MAX + 1);
+       if (!buf)
+               return -ENOMEM;
 
        snprintf(buf, PATH_MAX + 1, "%s", path);
-        ret = common_param_init(param, buf);
-        if (ret)
-                goto out;
+       ret = common_param_init(param, buf);
+       if (ret)
+               goto out;
 
        param->fp_depth = 0;
 
-        ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
-                                      sem_fini, param, NULL);
+       ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
+                                     sem_fini, param, NULL);
 out:
-        find_param_fini(param);
-        free(buf);
-        return ret < 0 ? ret : 0;
+       find_param_fini(param);
+       free(buf);
+       return ret < 0 ? ret : 0;
 }
 
 int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
@@ -2007,12 +2261,13 @@ int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
 
 int llapi_file_fget_lmv_uuid(int fd, struct obd_uuid *lov_name)
 {
-        int rc = ioctl(fd, OBD_IOC_GETMDNAME, lov_name);
-        if (rc) {
-                rc = -errno;
-                llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lmv name.");
-        }
-        return rc;
+       int rc = ioctl(fd, OBD_IOC_GETMDNAME, lov_name);
+
+       if (rc) {
+               rc = -errno;
+               llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lmv name.");
+       }
+       return rc;
 }
 
 int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
@@ -2050,8 +2305,8 @@ int llapi_file_get_lmv_uuid(const char *path, struct obd_uuid *lov_uuid)
 }
 
 enum tgt_type {
-        LOV_TYPE = 1,
-        LMV_TYPE
+       LOV_TYPE = 1,
+       LMV_TYPE
 };
 
 /*
@@ -2061,7 +2316,7 @@ enum tgt_type {
  * the ost_count set to number of available obd uuids.
  */
 static int llapi_get_target_uuids(int fd, struct obd_uuid *uuidp,
-                                  int *ost_count, enum tgt_type type)
+                                 int *ost_count, enum tgt_type type)
 {
        char buf[PATH_MAX], format[32];
        int rc = 0, index = 0;
@@ -2096,15 +2351,15 @@ static int llapi_get_target_uuids(int fd, struct obd_uuid *uuidp,
        while (fgets(buf, sizeof(buf), fp) != NULL) {
                if (uuidp && (index < *ost_count)) {
                        if (sscanf(buf, format, &index, uuidp[index].uuid) < 2)
-                                break;
-                }
-                index++;
-        }
+                               break;
+               }
+               index++;
+       }
 
-        fclose(fp);
+       fclose(fp);
 
-        if (uuidp && (index > *ost_count))
-                rc = -EOVERFLOW;
+       if (uuidp && (index > *ost_count))
+               rc = -EOVERFLOW;
 
        *ost_count = index;
 free_param:
@@ -2114,7 +2369,7 @@ free_param:
 
 int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
 {
-        return llapi_get_target_uuids(fd, uuidp, ost_count, LOV_TYPE);
+       return llapi_get_target_uuids(fd, uuidp, ost_count, LOV_TYPE);
 }
 
 int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
@@ -2138,31 +2393,36 @@ int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
        return rc;
 }
 
-/* Check if user specified value matches a real uuid.  Ignore _UUID,
+/*
+ * Check if user specified value matches a real uuid.  Ignore _UUID,
  * -osc-4ba41334, other trailing gunk in comparison.
  * @param real_uuid ends in "_UUID"
  * @param search_uuid may or may not end in "_UUID"
  */
 int llapi_uuid_match(char *real_uuid, char *search_uuid)
 {
-        int cmplen = strlen(real_uuid);
-        int searchlen = strlen(search_uuid);
+       int cmplen = strlen(real_uuid);
+       int searchlen = strlen(search_uuid);
 
-        if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
-                cmplen -= 5;
-        if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
-                searchlen -= 5;
+       if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
+               cmplen -= 5;
+       if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
+               searchlen -= 5;
 
-        /* The UUIDs may legitimately be different lengths, if
-         * the system was upgraded from an older version. */
-        if (cmplen != searchlen)
-                return 0;
+       /*
+        * The UUIDs may legitimately be different lengths, if
+        * the system was upgraded from an older version.
+        */
+       if (cmplen != searchlen)
+               return 0;
 
-        return (strncmp(search_uuid, real_uuid, cmplen) == 0);
+       return (strncmp(search_uuid, real_uuid, cmplen) == 0);
 }
 
-/* Here, param->fp_obd_uuid points to a single obduuid, the index of which is
- * returned in param->fp_obd_index */
+/*
+ * Here, param->fp_obd_uuid points to a single obduuid, the index of which is
+ * returned in param->fp_obd_index
+ */
 static int setup_obd_uuid(int fd, char *dname, struct find_param *param)
 {
        struct obd_uuid obd_uuid;
@@ -2234,7 +2494,7 @@ static int setup_obd_uuid(int fd, char *dname, struct find_param *param)
        }
        param->fp_obds_printed = 1;
 
-        fclose(fp);
+       fclose(fp);
 
        if (param->fp_obd_uuid && (param->fp_obd_index == OBD_NOT_FOUND)) {
                llapi_err_noerrno(LLAPI_MSG_ERROR,
@@ -2247,18 +2507,20 @@ free_param:
        return rc;
 }
 
-/* In this case, param->fp_obd_uuid will be an array of obduuids and
+/*
+ * In this case, param->fp_obd_uuid will be an array of obduuids and
  * obd index for all these obduuids will be returned in
- * param->fp_obd_indexes */
+ * param->fp_obd_indexes
+ */
 static int setup_indexes(DIR *dir, char *path, struct obd_uuid *obduuids,
-                         int num_obds, int **obdindexes, int *obdindex,
-                         enum tgt_type type)
+                        int num_obds, int **obdindexes, int *obdindex,
+                        enum tgt_type type)
 {
        int ret, obdcount, obd_valid = 0, obdnum;
        long i;
-        struct obd_uuid *uuids = NULL;
-        char buf[16];
-        int *indexes;
+       struct obd_uuid *uuids = NULL;
+       char buf[16];
+       int *indexes;
 
        if (type == LOV_TYPE)
                ret = get_param_lov(path, "numobd", buf, sizeof(buf));
@@ -2291,30 +2553,30 @@ retry_get_uuids:
                goto out_free;
        }
 
-        indexes = malloc(num_obds * sizeof(*obdindex));
-        if (indexes == NULL) {
-                ret = -ENOMEM;
-                goto out_free;
-        }
-
-        for (obdnum = 0; obdnum < num_obds; obdnum++) {
-                char *end = NULL;
-
-                /* The user may have specified a simple index */
-                i = strtol(obduuids[obdnum].uuid, &end, 0);
-                if (end && *end == '\0' && i < obdcount) {
-                        indexes[obdnum] = i;
-                        obd_valid++;
-                } else {
-                        for (i = 0; i < obdcount; i++) {
-                                if (llapi_uuid_match(uuids[i].uuid,
-                                                     obduuids[obdnum].uuid)) {
-                                        indexes[obdnum] = i;
-                                        obd_valid++;
-                                        break;
-                                }
-                        }
-                }
+       indexes = malloc(num_obds * sizeof(*obdindex));
+       if (indexes == NULL) {
+               ret = -ENOMEM;
+               goto out_free;
+       }
+
+       for (obdnum = 0; obdnum < num_obds; obdnum++) {
+               char *end = NULL;
+
+               /* The user may have specified a simple index */
+               i = strtol(obduuids[obdnum].uuid, &end, 0);
+               if (end && *end == '\0' && i < obdcount) {
+                       indexes[obdnum] = i;
+                       obd_valid++;
+               } else {
+                       for (i = 0; i < obdcount; i++) {
+                               if (llapi_uuid_match(uuids[i].uuid,
+                                                    obduuids[obdnum].uuid)) {
+                                       indexes[obdnum] = i;
+                                       obd_valid++;
+                                       break;
+                               }
+                       }
+               }
                if (i >= obdcount) {
                        indexes[obdnum] = OBD_NOT_FOUND;
                        llapi_err_noerrno(LLAPI_MSG_ERROR,
@@ -2324,22 +2586,22 @@ retry_get_uuids:
                }
        }
 
-        if (obd_valid == 0)
-                *obdindex = OBD_NOT_FOUND;
-        else
-                *obdindex = obd_valid;
+       if (obd_valid == 0)
+               *obdindex = OBD_NOT_FOUND;
+       else
+               *obdindex = obd_valid;
 
-        *obdindexes = indexes;
+       *obdindexes = indexes;
 out_free:
-        if (uuids)
-                free(uuids);
+       if (uuids)
+               free(uuids);
 
-        return ret;
+       return ret;
 }
 
 static int setup_target_indexes(DIR *dir, char *path, struct find_param *param)
 {
-        int ret = 0;
+       int ret = 0;
 
        if (param->fp_mdt_uuid) {
                ret = setup_indexes(dir, path, param->fp_mdt_uuid,
@@ -2385,9 +2647,9 @@ int llapi_ostlist(char *path, struct find_param *param)
  * using pathname.
  */
 static int sattr_get_defaults(const char *const fsname,
-                              unsigned int *scount,
-                              unsigned int *ssize,
-                              unsigned int *soffset)
+                             unsigned int *scount,
+                             unsigned int *ssize,
+                             unsigned int *soffset)
 {
        char val[PATH_MAX];
        int rc;
@@ -2429,61 +2691,64 @@ int sattr_cache_get_defaults(const char *const fsname,
                             const char *const pathname, unsigned int *scount,
                             unsigned int *ssize, unsigned int *soffset)
 {
-        static struct {
-                char fsname[PATH_MAX + 1];
-                unsigned int stripecount;
-                unsigned int stripesize;
-                unsigned int stripeoffset;
-        } cache = {
-                .fsname = {'\0'}
-        };
-
-        int rc;
-        char fsname_buf[PATH_MAX + 1];
-        unsigned int tmp[3];
-
-        if (fsname == NULL) {
-                rc = llapi_search_fsname(pathname, fsname_buf);
-                if (rc)
-                        return rc;
-        } else {
+       static struct {
+               char fsname[PATH_MAX + 1];
+               unsigned int stripecount;
+               unsigned int stripesize;
+               unsigned int stripeoffset;
+       } cache = {
+               .fsname = {'\0'}
+       };
+
+       int rc;
+       char fsname_buf[PATH_MAX + 1];
+       unsigned int tmp[3];
+
+       if (fsname == NULL) {
+               rc = llapi_search_fsname(pathname, fsname_buf);
+               if (rc)
+                       return rc;
+       } else {
                snprintf(fsname_buf, sizeof(fsname_buf), "%s", fsname);
-        }
+       }
 
        if (strncmp(fsname_buf, cache.fsname, sizeof(fsname_buf) - 1) != 0) {
-                /*
-                 * Ensure all 3 sattrs (count, size, and offset) are
-                 * successfully retrieved and stored in tmp before writing to
-                 * cache.
-                 */
+               /*
+                * Ensure all 3 sattrs (count, size, and offset) are
+                * successfully retrieved and stored in tmp before writing to
+                * cache.
+                */
                rc = sattr_get_defaults(fsname_buf, &tmp[0], &tmp[1], &tmp[2]);
-                if (rc != 0)
-                        return rc;
+               if (rc != 0)
+                       return rc;
 
-                cache.stripecount = tmp[0];
-                cache.stripesize = tmp[1];
-                cache.stripeoffset = tmp[2];
+               cache.stripecount = tmp[0];
+               cache.stripesize = tmp[1];
+               cache.stripeoffset = tmp[2];
                snprintf(cache.fsname, sizeof(cache.fsname), "%s", fsname_buf);
-        }
+       }
 
-        if (scount)
-                *scount = cache.stripecount;
-        if (ssize)
-                *ssize = cache.stripesize;
-        if (soffset)
-                *soffset = cache.stripeoffset;
+       if (scount)
+               *scount = cache.stripecount;
+       if (ssize)
+               *ssize = cache.stripesize;
+       if (soffset)
+               *soffset = cache.stripeoffset;
 
-        return 0;
+       return 0;
 }
 
 static char *layout2name(__u32 layout_pattern)
 {
-       if (layout_pattern == LOV_PATTERN_MDT)
+       if (layout_pattern & LOV_PATTERN_F_RELEASED)
+               return "released";
+       else if (layout_pattern == LOV_PATTERN_MDT)
                return "mdt";
        else if (layout_pattern == LOV_PATTERN_RAID0)
                return "raid0";
-       else if (layout_pattern == (LOV_PATTERN_RAID0 | LOV_PATTERN_F_RELEASED))
-               return "released";
+       else if (layout_pattern ==
+                       (LOV_PATTERN_RAID0 | LOV_PATTERN_OVERSTRIPING))
+               return "raid0,overstriped";
        else
                return "unknown";
 }
@@ -2494,6 +2759,7 @@ enum lov_dump_flags {
        LDF_INDENT      = 0x0004,
        LDF_SKIP_OBJS   = 0x0008,
        LDF_YAML        = 0x0010,
+       LDF_EXTENSION   = 0x0020,
 };
 
 static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
@@ -2507,6 +2773,7 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
        bool indent = flags & LDF_INDENT;
        bool yaml = flags & LDF_YAML;
        bool skip_objs = flags & LDF_SKIP_OBJS;
+       bool extension = flags & LDF_EXTENSION;
        char *prefix = is_dir ? "" : "lmm_";
        char *separator = "";
        char *space = indent ? "      " : "";
@@ -2540,7 +2807,8 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                if (verbose & ~VERBOSE_DFID)
                        llapi_printf(LLAPI_MSG_NORMAL, "%slmm_fid:           ",
                                     space);
-               /* This needs a bit of hand-holding since old 1.x lmm_oi
+               /*
+                * This needs a bit of hand-holding since old 1.x lmm_oi
                 * have { oi.oi_id = mds_inum, oi.oi_seq = 0 } and 2.x lmm_oi
                 * have { oi.oi_id = mds_oid, oi.oi_seq = mds_seq } instead of
                 * a real FID.  Ideally the 2.x code would have stored this
@@ -2556,7 +2824,8 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                 * oi_fid fields are in the right order.  This is why there are
                 * separate lmm_oi_seq() and lmm_oi_id() routines for this.
                 *
-                * For newer layout types hopefully this will be a real FID. */
+                * For newer layout types hopefully this will be a real FID.
+                */
                seq = lmm_oi_seq(&lum->lmm_oi) == 0 ?
                        lmm_oi_id(&lum->lmm_oi) : lmm_oi_seq(&lum->lmm_oi);
                oid = lmm_oi_seq(&lum->lmm_oi) == 0 ?
@@ -2564,10 +2833,10 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                ver = (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32);
                if (yaml)
                        llapi_printf(LLAPI_MSG_NORMAL, DFID_NOBRACE"\n",
-                                    seq, oid, ver);
+                                    (unsigned long long)seq, oid, ver);
                else
                        llapi_printf(LLAPI_MSG_NORMAL, DFID"\n",
-                                    seq, oid, ver);
+                                    (unsigned long long)seq, oid, ver);
        }
 
        if (verbose & VERBOSE_STRIPE_COUNT) {
@@ -2578,6 +2847,7 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                        if (!is_raw && lum->lmm_stripe_count == 0 &&
                            lov_pattern(lum->lmm_pattern) != LOV_PATTERN_MDT) {
                                unsigned int scount;
+
                                rc = sattr_cache_get_defaults(NULL, path,
                                                              &scount, NULL,
                                                              NULL);
@@ -2586,16 +2856,15 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                                                     scount);
                                else
                                        llapi_error(LLAPI_MSG_ERROR, rc,
-                                                   "Cannot determine default"
-                                                   " stripe count.");
+                                                   "Cannot determine default stripe count.");
                        } else {
                                llapi_printf(LLAPI_MSG_NORMAL, "%d",
-                                            lum->lmm_stripe_count ==
-                                            (typeof(lum->lmm_stripe_count))(-1)
-                                            ? -1 : lum->lmm_stripe_count);
+                                            extension ? 0 :
+                                            (__s16)lum->lmm_stripe_count);
                        }
                } else {
                        llapi_printf(LLAPI_MSG_NORMAL, "%hd",
+                                    extension ? 0 :
                                     (__s16)lum->lmm_stripe_count);
                }
                if (!yaml && is_dir)
@@ -2604,24 +2873,31 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                        separator = "\n";
        }
 
-       if (verbose & VERBOSE_STRIPE_SIZE) {
+       if (((verbose & VERBOSE_STRIPE_SIZE) && !extension) ||
+           ((verbose & VERBOSE_EXT_SIZE) && extension)) {
                llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
-               if (verbose & ~VERBOSE_STRIPE_SIZE)
+               if (verbose & ~VERBOSE_EXT_SIZE && extension)
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s%sextension_size: ",
+                                    space, prefix);
+               if (verbose & ~VERBOSE_STRIPE_SIZE && !extension)
                        llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_size:   ",
                                     space, prefix);
                if (is_dir && !is_raw && lum->lmm_stripe_size == 0) {
                        unsigned int ssize;
+
                        rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
                                                      NULL);
                        if (rc == 0)
                                llapi_printf(LLAPI_MSG_NORMAL, "%u", ssize);
                        else
                                llapi_error(LLAPI_MSG_ERROR, rc,
-                                           "Cannot determine default"
-                                           " stripe size.");
+                                           "Cannot determine default stripe size.");
                } else {
-                       llapi_printf(LLAPI_MSG_NORMAL, "%u",
-                                    lum->lmm_stripe_size);
+                       /* Extension size is in KiB */
+                       llapi_printf(LLAPI_MSG_NORMAL, "%llu",
+                                    extension ?
+                                    (unsigned long long)(lum->lmm_stripe_size * SEL_UNIT_SIZE) :
+                                    (unsigned long long)lum->lmm_stripe_size);
                }
                if (!yaml && is_dir)
                        separator = " ";
@@ -2757,6 +3033,7 @@ void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
                                    space, i, idx, PFID(&fid));
                        } else {
                                char fmt[48];
+
                                sprintf(fmt, "%s%s%s\n",
                                        "\t%6u\t%14llu\t%#13llx\t",
                                        (fid_seq_is_rsvd(gr) ||
@@ -2856,14 +3133,12 @@ void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
 
                if (flags & LMV_HASH_FLAG_MIGRATION)
                        llapi_printf(LLAPI_MSG_NORMAL, ",migrating");
-               if (flags & LMV_HASH_FLAG_DEAD)
-                       llapi_printf(LLAPI_MSG_NORMAL, ",dead");
                if (flags & LMV_HASH_FLAG_BAD_TYPE)
                        llapi_printf(LLAPI_MSG_NORMAL, ",bad_type");
                if (flags & LMV_HASH_FLAG_LOST_LMV)
                        llapi_printf(LLAPI_MSG_NORMAL, ",lost_lmv");
-               separator = "\n";
 
+               separator = "\n";
        }
 
        if (verbose & VERBOSE_OBJID && lum->lum_magic != LMV_USER_MAGIC) {
@@ -2874,13 +3149,13 @@ void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
                for (i = 0; i < lum->lum_stripe_count; i++) {
                        int idx = objects[i].lum_mds;
                        struct lu_fid *fid = &objects[i].lum_fid;
+
                        if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
                                llapi_printf(LLAPI_MSG_NORMAL,
                                             "%6u\t\t "DFID"\t\t%s\n",
                                            idx, PFID(fid),
                                            obdindex == idx ? " *" : "");
                }
-
        }
 
        if ((verbose & VERBOSE_POOL) && pool_name != NULL &&
@@ -3039,7 +3314,7 @@ static void lov_dump_comp_v1_entry(struct find_param *param,
                                     "%4slcme_timestamp:      ", " ");
                if (yaml) {
                        llapi_printf(LLAPI_MSG_NORMAL, "%llu",
-                                                       entry->lcme_timestamp);
+                                    (unsigned long long)entry->lcme_timestamp);
                } else {
                        time_t stamp = entry->lcme_timestamp;
                        char *date_str = asctime(localtime(&stamp));
@@ -3057,7 +3332,7 @@ static void lov_dump_comp_v1_entry(struct find_param *param,
                        llapi_printf(LLAPI_MSG_NORMAL,
                                     "%4slcme_extent.e_start: ", " ");
                llapi_printf(LLAPI_MSG_NORMAL, "%llu",
-                            entry->lcme_extent.e_start);
+                            (unsigned long long)entry->lcme_extent.e_start);
                separator = "\n";
        }
 
@@ -3070,7 +3345,7 @@ static void lov_dump_comp_v1_entry(struct find_param *param,
                        llapi_printf(LLAPI_MSG_NORMAL, "%s", "EOF");
                else
                        llapi_printf(LLAPI_MSG_NORMAL, "%llu",
-                                       entry->lcme_extent.e_end);
+                                    (unsigned long long)entry->lcme_extent.e_end);
                separator = "\n";
        }
 
@@ -3089,7 +3364,8 @@ static void lov_dump_comp_v1_entry(struct find_param *param,
        }
 }
 
-/* Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
+/*
+ * Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
  * @mds indicates if this is MDS timestamps and there are attributes on OSTs.
  *
  * The result is -1 if it does not match, 0 if not yet clear, 1 if matches.
@@ -3107,15 +3383,16 @@ static void lov_dump_comp_v1_entry(struct find_param *param,
  * 9 | file < limit; sign < 0 |  ? / -1 |
  * --------------------------------------
  * Note: 5th actually means that the value is within the interval
- * (limit - margin, limit]. */
+ * (limit - margin, limit].
+ */
 static int find_value_cmp(unsigned long long file, unsigned long long limit,
                          int sign, int negopt, unsigned long long margin,
-                         int mds)
+                         bool mds)
 {
        int ret = -1;
 
        if (sign > 0) {
-               /* Drop the fraction of margin (of days). */
+               /* Drop the fraction of margin (of days or size). */
                if (file + margin <= limit)
                        ret = mds ? 0 : 1;
        } else if (sign == 0) {
@@ -3258,7 +3535,7 @@ static void lov_dump_comp_v1(struct find_param *param, char *path,
        struct lov_user_md_v1 *v1;
        char pool_name[LOV_MAXPOOLNAME + 1];
        int obdindex = param->fp_obd_index;
-       int i, j, match;
+       int i, j, match, ext;
        bool obdstripe = false;
        __u16 mirror_index = 0;
        __u16 mirror_id = 0;
@@ -3355,8 +3632,15 @@ static void lov_dump_comp_v1(struct find_param *param, char *path,
                         */
                        if (entry->lcme_flags & LCME_FL_INIT)
                                continue;
-                       else
-                               break;
+
+                       if (param->fp_verbose & VERBOSE_EXT_SIZE) {
+                               if (entry->lcme_flags & LCME_FL_EXTENSION)
+                                       /* moved back below */
+                                       i++;
+                               else
+                                       continue;
+                       }
+                       break;
                }
 
                if (entry->lcme_flags & LCME_FL_INIT) {
@@ -3386,9 +3670,10 @@ static void lov_dump_comp_v1(struct find_param *param, char *path,
                objects = lov_v1v3_objects(v1);
                lov_v1v3_pool_name(v1, pool_name);
 
+               ext = entry->lcme_flags & LCME_FL_EXTENSION ? LDF_EXTENSION : 0;
                lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
                                       param->fp_max_depth, param->fp_verbose,
-                                      flags);
+                                      flags | ext);
        }
        if (print_last_init_comp(param)) {
                /**
@@ -3407,9 +3692,11 @@ static void lov_dump_comp_v1(struct find_param *param, char *path,
                objects = lov_v1v3_objects(v1);
                lov_v1v3_pool_name(v1, pool_name);
 
+               entry = &comp_v1->lcm_entries[i];
+               ext = entry->lcme_flags & LCME_FL_EXTENSION ? LDF_EXTENSION : 0;
                lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
                                       param->fp_max_depth, param->fp_verbose,
-                                      flags);
+                                      flags | ext);
        }
 }
 
@@ -3444,13 +3731,14 @@ struct lov_user_mds_data *lov_forge_comp_v1(struct lov_user_mds_data *orig,
        int lum_size = lov_user_md_size(is_dir ? 0 : lum->lmm_stripe_count,
                                        lum->lmm_magic);
 
-       new = malloc(sizeof(lstat_t) + lum_off + lum_size);
+       new = malloc(offsetof(typeof(*new), lmd_lmm) + lum_off + lum_size);
        if (new == NULL) {
                llapi_printf(LLAPI_MSG_NORMAL, "out of memory\n");
                return new;
        }
 
-       memcpy(new, orig, sizeof(lstat_t));
+       memcpy(new, orig, sizeof(new->lmd_stx) + sizeof(new->lmd_flags)
+              + sizeof(new->lmd_lmmsize));
 
        comp_v1 = (struct lov_comp_md_v1 *)&new->lmd_lmm;
        comp_v1->lcm_magic = lum->lmm_magic;
@@ -3512,6 +3800,84 @@ static void lov_dump_plain_user_lmm(struct find_param *param, char *path,
        }
 }
 
+static uint32_t check_foreign_type(uint32_t foreign_type)
+{
+       uint32_t i;
+
+       for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
+               if (lu_foreign_types[i].lft_name == NULL)
+                       break;
+               if (foreign_type == lu_foreign_types[i].lft_type)
+                       return i;
+       }
+
+       return LU_FOREIGN_TYPE_UNKNOWN;
+}
+
+static void lov_dump_foreign_lmm(struct find_param *param, char *path,
+                                enum lov_dump_flags flags)
+{
+       struct lov_foreign_md *lfm = (void *)&param->fp_lmd->lmd_lmm;
+       bool yaml = flags & LDF_YAML;
+
+       if (!yaml && param->fp_depth && path)
+               llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
+
+       if (param->fp_verbose & VERBOSE_DETAIL) {
+               uint32_t type = check_foreign_type(lfm->lfm_type);
+
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_magic:         0x%08X\n",
+                            lfm->lfm_magic);
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_length:          %u\n",
+                            lfm->lfm_length);
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_type:          0x%08X",
+                            lfm->lfm_type);
+               if (type < LU_FOREIGN_TYPE_UNKNOWN)
+                       llapi_printf(LLAPI_MSG_NORMAL, " (%s)\n",
+                                    lu_foreign_types[type].lft_name);
+               else
+                       llapi_printf(LLAPI_MSG_NORMAL, " (unknown)\n");
+
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_flags:          0x%08X\n",
+                            lfm->lfm_flags);
+       }
+       llapi_printf(LLAPI_MSG_NORMAL, "lfm_value:     '%.*s'\n",
+                    lfm->lfm_length, lfm->lfm_value);
+       llapi_printf(LLAPI_MSG_NORMAL, "\n");
+}
+
+static void lmv_dump_foreign_lmm(struct find_param *param, char *path,
+                                   enum lov_dump_flags flags)
+{
+       struct lmv_foreign_md *lfm = (struct lmv_foreign_md *)param->fp_lmv_md;
+       bool yaml = flags & LDF_YAML;
+
+       if (!yaml && param->fp_depth && path)
+               llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
+
+       if (param->fp_verbose & VERBOSE_DETAIL) {
+               uint32_t type = check_foreign_type(lfm->lfm_type);
+
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_magic:         0x%08X\n",
+                            lfm->lfm_magic);
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_length:          %u\n",
+                            lfm->lfm_length);
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_type:          0x%08X",
+                            lfm->lfm_type);
+               if (type < LU_FOREIGN_TYPE_UNKNOWN)
+                       llapi_printf(LLAPI_MSG_NORMAL, " (%s)\n",
+                                    lu_foreign_types[type].lft_name);
+               else
+                       llapi_printf(LLAPI_MSG_NORMAL, " (unknown)\n");
+
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_flags:          0x%08X\n",
+                            lfm->lfm_flags);
+       }
+       llapi_printf(LLAPI_MSG_NORMAL, "lfm_value:     '%.*s'\n",
+                    lfm->lfm_length, lfm->lfm_value);
+       llapi_printf(LLAPI_MSG_NORMAL, "\n");
+}
+
 static void llapi_lov_dump_user_lmm(struct find_param *param, char *path,
                                    enum lov_dump_flags flags)
 {
@@ -3533,6 +3899,9 @@ static void llapi_lov_dump_user_lmm(struct find_param *param, char *path,
        case LOV_USER_MAGIC_SPECIFIC:
                lov_dump_plain_user_lmm(param, path, flags);
                break;
+       case LOV_USER_MAGIC_FOREIGN:
+               lov_dump_foreign_lmm(param, path, flags);
+               break;
        case LMV_MAGIC_V1:
        case LMV_USER_MAGIC: {
                char pool_name[LOV_MAXPOOLNAME + 1];
@@ -3549,9 +3918,12 @@ static void llapi_lov_dump_user_lmm(struct find_param *param, char *path,
        case LOV_USER_MAGIC_COMP_V1:
                lov_dump_comp_v1(param, path, flags);
                break;
+       case LMV_MAGIC_FOREIGN:
+               lmv_dump_foreign_lmm(param, path, flags);
+               break;
        default:
-               llapi_printf(LLAPI_MSG_NORMAL, "unknown lmm_magic:  %#x "
-                            "(expecting one of %#x %#x %#x %#x)\n",
+               llapi_printf(LLAPI_MSG_NORMAL,
+                            "unknown lmm_magic:  %#x (expecting one of %#x %#x %#x %#x)\n",
                             *(__u32 *)&param->fp_lmd->lmd_lmm,
                             LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3,
                             LMV_USER_MAGIC, LMV_MAGIC_V1);
@@ -3586,8 +3958,7 @@ int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
        fd = open(dname, O_RDONLY | O_NONBLOCK);
        if (fd == -1) {
                rc = -errno;
-               free(dname);
-               return rc;
+               goto out_free;
        }
 
        strcpy((char *)lum, fname);
@@ -3597,83 +3968,94 @@ int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
        if (close(fd) == -1 && rc == 0)
                rc = -errno;
 
+out_free:
        free(dname);
        return rc;
 }
 
 int llapi_file_lookup(int dirfd, const char *name)
 {
-        struct obd_ioctl_data data = { 0 };
-        char rawbuf[8192];
-        char *buf = rawbuf;
-        int rc;
+       struct obd_ioctl_data data = { 0 };
+       char rawbuf[8192];
+       char *buf = rawbuf;
+       int rc;
 
-        if (dirfd < 0 || name == NULL)
-                return -EINVAL;
+       if (dirfd < 0 || name == NULL)
+               return -EINVAL;
 
-        data.ioc_version = OBD_IOCTL_VERSION;
-        data.ioc_len = sizeof(data);
-        data.ioc_inlbuf1 = (char *)name;
-        data.ioc_inllen1 = strlen(name) + 1;
+       data.ioc_version = OBD_IOCTL_VERSION;
+       data.ioc_len = sizeof(data);
+       data.ioc_inlbuf1 = (char *)name;
+       data.ioc_inllen1 = strlen(name) + 1;
 
        rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
-        if (rc) {
-                llapi_error(LLAPI_MSG_ERROR, rc,
-                            "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
-                            name, rc);
-                return rc;
-        }
+       if (rc) {
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
+                           name, rc);
+               return rc;
+       }
 
-        rc = ioctl(dirfd, IOC_MDC_LOOKUP, buf);
-        if (rc < 0)
-                rc = -errno;
-        return rc;
+       rc = ioctl(dirfd, IOC_MDC_LOOKUP, buf);
+       if (rc < 0)
+               rc = -errno;
+       return rc;
 }
 
-/* Check if the file time matches all the given criteria (e.g. --atime +/-N).
+/*
+ * Check if the file time matches all the given criteria (e.g. --atime +/-N).
  * Return -1 or 1 if file timestamp does not or does match the given criteria
  * correspondingly. Return 0 if the MDS time is being checked and there are
  * attributes on OSTs and it is not yet clear if the timespamp matches.
  *
  * If 0 is returned, we need to do another RPC to the OSTs to obtain the
- * updated timestamps. */
-static int find_time_check(lstat_t *st, struct find_param *param, int mds)
+ * updated timestamps.
+ */
+static int find_time_check(struct find_param *param, int mds)
 {
+       struct lov_user_mds_data *lmd = param->fp_lmd;
        int rc = 1;
        int rc2;
 
        /* Check if file is accepted. */
        if (param->fp_atime) {
-               rc2 = find_value_cmp(st->st_atime, param->fp_atime,
-                                    param->fp_asign, param->fp_exclude_atime,
-                                    24 * 60 * 60, mds);
+               rc2 = find_value_cmp(lmd->lmd_stx.stx_atime.tv_sec,
+                                    param->fp_atime, param->fp_asign,
+                                    param->fp_exclude_atime,
+                                    param->fp_time_margin, mds);
                if (rc2 < 0)
                        return rc2;
                rc = rc2;
        }
 
        if (param->fp_mtime) {
-               rc2 = find_value_cmp(st->st_mtime, param->fp_mtime,
-                                    param->fp_msign, param->fp_exclude_mtime,
-                                    24 * 60 * 60, mds);
+               rc2 = find_value_cmp(lmd->lmd_stx.stx_mtime.tv_sec,
+                                    param->fp_mtime, param->fp_msign,
+                                    param->fp_exclude_mtime,
+                                    param->fp_time_margin, mds);
                if (rc2 < 0)
                        return rc2;
 
-               /* If the previous check matches, but this one is not yet clear,
-                * we should return 0 to do an RPC on OSTs. */
+               /*
+                * If the previous check matches, but this one is not yet clear,
+                * we should return 0 to do an RPC on OSTs.
+                */
                if (rc == 1)
                        rc = rc2;
        }
 
        if (param->fp_ctime) {
-               rc2 = find_value_cmp(st->st_ctime, param->fp_ctime,
-                                    param->fp_csign, param->fp_exclude_ctime,
-                                    24 * 60 * 60, mds);
+               rc2 = find_value_cmp(lmd->lmd_stx.stx_ctime.tv_sec,
+                                    param->fp_ctime, param->fp_csign,
+                                    param->fp_exclude_ctime,
+                                    param->fp_time_margin, mds);
                if (rc2 < 0)
                        return rc2;
 
-               /* If the previous check matches, but this one is not yet clear,
-                * we should return 0 to do an RPC on OSTs. */
+               /*
+                * If the previous check matches, but this one is not yet clear,
+                * we should return 0 to do an RPC on OSTs.
+                */
                if (rc == 1)
                        rc = rc2;
        }
@@ -3681,6 +4063,79 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds)
        return rc;
 }
 
+static int find_newerxy_check(struct find_param *param, int mds, bool from_mdt)
+{
+       struct lov_user_mds_data *lmd = param->fp_lmd;
+       int i;
+       int rc = 1;
+       int rc2;
+
+       for (i = 0; i < 2; i++) {
+               /* Check if file is accepted. */
+               if (param->fp_newery[NEWERXY_ATIME][i]) {
+                       rc2 = find_value_cmp(lmd->lmd_stx.stx_atime.tv_sec,
+                                            param->fp_newery[NEWERXY_ATIME][i],
+                                            -1, i, 0, mds);
+                       if (rc2 < 0)
+                               return rc2;
+                       rc = rc2;
+               }
+
+               if (param->fp_newery[NEWERXY_MTIME][i]) {
+                       rc2 = find_value_cmp(lmd->lmd_stx.stx_mtime.tv_sec,
+                                            param->fp_newery[NEWERXY_MTIME][i],
+                                            -1, i, 0, mds);
+                       if (rc2 < 0)
+                               return rc2;
+
+                       /*
+                        * If the previous check matches, but this one is not
+                        * yet clear, we should return 0 to do an RPC on OSTs.
+                        */
+                       if (rc == 1)
+                               rc = rc2;
+               }
+
+               if (param->fp_newery[NEWERXY_CTIME][i]) {
+                       rc2 = find_value_cmp(lmd->lmd_stx.stx_ctime.tv_sec,
+                                            param->fp_newery[NEWERXY_CTIME][i],
+                                            -1, i, 0, mds);
+                       if (rc2 < 0)
+                               return rc2;
+
+                       /*
+                        * If the previous check matches, but this one is not
+                        * yet clear, we should return 0 to do an RPC on OSTs.
+                        */
+                       if (rc == 1)
+                               rc = rc2;
+               }
+
+               /*
+                * File birth time (btime) can get from MDT directly.
+                * if @from_mdt is true, it means the input file attributs are
+                * obtained directly from MDT.
+                * Thus, if @from_mdt is false, we should skip the following
+                * btime check.
+                */
+               if (!from_mdt)
+                       continue;
+
+               if (param->fp_newery[NEWERXY_BTIME][i]) {
+                       if (!(lmd->lmd_stx.stx_mask & STATX_BTIME))
+                               return -EOPNOTSUPP;
+
+                       rc2 = find_value_cmp(lmd->lmd_stx.stx_btime.tv_sec,
+                                            param->fp_newery[NEWERXY_BTIME][i],
+                                            -1, i, 0, 0);
+                       if (rc2 < 0)
+                               return rc2;
+               }
+       }
+
+       return rc;
+}
+
 /**
  * Check whether the stripes matches the indexes user provided
  *       1   : matched
@@ -3690,18 +4145,24 @@ static int check_obd_match(struct find_param *param)
 {
        struct lov_user_ost_data_v1 *objects;
        struct lov_comp_md_v1 *comp_v1 = NULL;
-       struct lov_user_md_v1 *v1 = &param->fp_lmd->lmd_lmm;
-       lstat_t *st = &param->fp_lmd->lmd_st;
+       struct lov_user_mds_data *lmd = param->fp_lmd;
+       struct lov_user_md_v1 *v1 = &lmd->lmd_lmm;
        int i, j, k, count = 1;
 
        if (param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND)
                return 0;
 
-       if (!S_ISREG(st->st_mode))
+       if (!S_ISREG(lmd->lmd_stx.stx_mode))
                return 0;
 
-       /* Only those files should be accepted, which have a
-        * stripe on the specified OST. */
+       /* exclude foreign */
+       if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+               return param->fp_exclude_obd;
+
+       /*
+        * Only those files should be accepted, which have a
+        * stripe on the specified OST.
+        */
        if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
                comp_v1 = (struct lov_comp_md_v1 *)v1;
                count = comp_v1->lcm_entry_count;
@@ -3752,51 +4213,101 @@ static int check_mdt_match(struct find_param *param)
  * not active, just print the object affected by this
  * failed target
  **/
-static int print_failed_tgt(struct find_param *param, char *path, int type)
+static void print_failed_tgt(struct find_param *param, char *path, int type)
 {
-        struct obd_statfs stat_buf;
-        struct obd_uuid uuid_buf;
-       int ret;
-
-       if (type != LL_STATFS_LOV && type != LL_STATFS_LMV)
-               return -EINVAL;
+       struct obd_statfs stat_buf;
+       struct obd_uuid uuid_buf;
+       int tgt_nr, i, *indexes;
+       int ret = 0;
 
-        memset(&stat_buf, 0, sizeof(struct obd_statfs));
-        memset(&uuid_buf, 0, sizeof(struct obd_uuid));
-       ret = llapi_obd_statfs(path, type,
-                              param->fp_obd_index, &stat_buf,
-                              &uuid_buf);
-       if (ret) {
-               llapi_printf(LLAPI_MSG_NORMAL,
-                            "obd_uuid: %s failed %s ",
-                            param->fp_obd_uuid->uuid,
-                            strerror(errno));
+       if (type != LL_STATFS_LOV && type != LL_STATFS_LMV) {
+               llapi_error(LLAPI_MSG_NORMAL, ret, "%s: wrong statfs type(%d)",
+                           __func__, type);
+               return;
        }
 
-       return ret;
+       tgt_nr = (type == LL_STATFS_LOV) ? param->fp_obd_index :
+                param->fp_mdt_index;
+       indexes = (type == LL_STATFS_LOV) ? param->fp_obd_indexes :
+                 param->fp_mdt_indexes;
+
+       for (i = 0; i < tgt_nr; i++) {
+               memset(&stat_buf, 0, sizeof(struct obd_statfs));
+               memset(&uuid_buf, 0, sizeof(struct obd_uuid));
+
+               ret = llapi_obd_statfs(path, type, indexes[i], &stat_buf,
+                                      &uuid_buf);
+               if (ret)
+                       llapi_error(LLAPI_MSG_NORMAL, ret,
+                                   "%s: obd_uuid: %s failed",
+                                   __func__, param->fp_obd_uuid->uuid);
+       }
 }
 
 static int find_check_stripe_size(struct find_param *param)
 {
        struct lov_comp_md_v1 *comp_v1 = NULL;
        struct lov_user_md_v1 *v1 = &param->fp_lmd->lmd_lmm;
+       __u32 stripe_size = 0;
        int ret, i, count = 1;
 
+       if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+               return param->fp_exclude_stripe_size ? 1 : -1;
+
+       ret = param->fp_exclude_stripe_size ? 1 : -1;
        if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
                comp_v1 = (struct lov_comp_md_v1 *)v1;
                count = comp_v1->lcm_entry_count;
-               ret = param->fp_exclude_stripe_size ? 1 : -1;
        }
 
        for (i = 0; i < count; i++) {
-               if (comp_v1)
+               struct lov_comp_md_entry_v1 *ent;
+
+               if (comp_v1) {
                        v1 = lov_comp_entry(comp_v1, i);
 
-               ret = find_value_cmp(v1->lmm_stripe_size, param->fp_stripe_size,
-                                    param->fp_stripe_size_sign,
-                                    param->fp_exclude_stripe_size,
-                                    param->fp_stripe_size_units, 0);
-               /* If any stripe_size matches */
+                       ent = &comp_v1->lcm_entries[i];
+                       if (ent->lcme_flags & LCME_FL_EXTENSION)
+                               continue;
+                       if (!(ent->lcme_flags & LCME_FL_INIT))
+                               continue;
+               }
+               stripe_size = v1->lmm_stripe_size;
+       }
+
+       ret = find_value_cmp(stripe_size, param->fp_stripe_size,
+                            param->fp_stripe_size_sign,
+                            param->fp_exclude_stripe_size,
+                            param->fp_stripe_size_units, 0);
+
+       return ret;
+}
+
+static int find_check_ext_size(struct find_param *param)
+{
+       struct lov_comp_md_v1 *comp_v1;
+       struct lov_user_md_v1 *v1;
+       int ret, i;
+
+       ret = param->fp_exclude_ext_size ? 1 : -1;
+       comp_v1 = (struct lov_comp_md_v1 *)&param->fp_lmd->lmd_lmm;
+       if (comp_v1->lcm_magic != LOV_USER_MAGIC_COMP_V1)
+               return ret;
+
+       for (i = 0; i < comp_v1->lcm_entry_count; i++) {
+               struct lov_comp_md_entry_v1 *ent;
+
+               v1 = lov_comp_entry(comp_v1, i);
+
+               ent = &comp_v1->lcm_entries[i];
+               if (!(ent->lcme_flags & LCME_FL_EXTENSION))
+                       continue;
+
+               ret = find_value_cmp(v1->lmm_stripe_size, param->fp_ext_size,
+                                    param->fp_ext_size_sign,
+                                    param->fp_exclude_ext_size,
+                                    param->fp_ext_size_units, 0);
+               /* If any ext_size matches */
                if (ret != -1)
                        break;
        }
@@ -3811,15 +4322,28 @@ static __u32 find_get_stripe_count(struct find_param *param)
        int i, count = 1;
        __u32 stripe_count = 0;
 
+       if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+               return 0;
+
        if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
                comp_v1 = (struct lov_comp_md_v1 *)v1;
                count = comp_v1->lcm_entry_count;
        }
 
        for (i = 0; i < count; i++) {
-               if (comp_v1)
+               if (comp_v1) {
+                       struct lov_comp_md_entry_v1 *ent;
+
                        v1 = lov_comp_entry(comp_v1, i);
-               stripe_count += v1->lmm_stripe_count;
+
+                       ent = &comp_v1->lcm_entries[i];
+                       if (!(ent->lcme_flags & LCME_FL_INIT))
+                               continue;
+
+                       if (ent->lcme_flags & LCME_FL_EXTENSION)
+                               continue;
+               }
+               stripe_count = v1->lmm_stripe_count;
        }
 
        return stripe_count;
@@ -3843,6 +4367,10 @@ static int find_check_layout(struct find_param *param)
                if (comp_v1)
                        v1 = lov_comp_entry(comp_v1, i);
 
+               /* foreign file have a special magic but no pattern field */
+               if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+                       continue;
+
                if (v1->lmm_pattern == LOV_PATTERN_INVALID)
                        continue;
 
@@ -3863,38 +4391,88 @@ static int find_check_layout(struct find_param *param)
        return -1;
 }
 
+/*
+ * if no type specified, check/exclude all foreign
+ * if type specified, check all foreign&type and exclude !foreign + foreign&type
+ */
+static int find_check_foreign(struct find_param *param)
+{
+       if (S_ISREG(param->fp_lmd->lmd_stx.stx_mode)) {
+               struct lov_foreign_md *lfm;
+
+               lfm = (void *)&param->fp_lmd->lmd_lmm;
+               if (lfm->lfm_magic != LOV_USER_MAGIC_FOREIGN) {
+                       if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN)
+                               return param->fp_exclude_foreign ? 1 : -1;
+                       return -1;
+               }
+
+               if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN ||
+                   lfm->lfm_type == param->fp_foreign_type)
+                       return param->fp_exclude_foreign ? -1 : 1;
+               return param->fp_exclude_foreign ? 1 : -1;
+       }
+
+       if (S_ISDIR(param->fp_lmd->lmd_stx.stx_mode)) {
+               struct lmv_foreign_md *lfm;
+
+               lfm = (void *)param->fp_lmv_md;
+               if (lfm->lfm_magic != LMV_MAGIC_FOREIGN) {
+                       if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN)
+                               return param->fp_exclude_foreign ? 1 : -1;
+                       return -1;
+               }
+
+               if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN ||
+                   lfm->lfm_type == param->fp_foreign_type)
+                       return param->fp_exclude_foreign ? -1 : 1;
+               return param->fp_exclude_foreign ? 1 : -1;
+       }
+       return -1;
+}
+
 static int find_check_pool(struct find_param *param)
 {
        struct lov_comp_md_v1 *comp_v1 = NULL;
-       struct lov_user_md_v1 *v1 = &param->fp_lmd->lmd_lmm;
-       struct lov_user_md_v3 *v3 = (void *)v1;
+       struct lov_user_md_v3 *v3 = (void *)&param->fp_lmd->lmd_lmm;
        int i, count = 1;
        bool found = false;
 
-       if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
-               comp_v1 = (struct lov_comp_md_v1 *)v1;
+       if (v3->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
+               comp_v1 = (struct lov_comp_md_v1 *)v3;
                count = comp_v1->lcm_entry_count;
                /* empty requested pool is taken as no pool search */
-               if (count == 0 && param->fp_poolname[0] == '\0')
+               if (count == 0 && param->fp_poolname[0] == '\0') {
                        found = true;
+                       goto found;
+               }
        }
 
        for (i = 0; i < count; i++) {
-               if (comp_v1 != NULL)
-                       v1 = lov_comp_entry(comp_v1, i);
+               if (comp_v1 != NULL) {
+                       if (!(comp_v1->lcm_entries[i].lcme_flags &
+                             LCME_FL_INIT))
+                               continue;
+
+                       v3 = (void *)lov_comp_entry(comp_v1, i);
+               }
+
+               if (v3->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+                       continue;
 
-               if (((v1->lmm_magic == LOV_USER_MAGIC_V1) &&
+               if (((v3->lmm_magic == LOV_USER_MAGIC_V1) &&
                     (param->fp_poolname[0] == '\0')) ||
-                   ((v1->lmm_magic == LOV_USER_MAGIC_V3) &&
+                   ((v3->lmm_magic == LOV_USER_MAGIC_V3) &&
                     (strncmp(v3->lmm_pool_name,
                              param->fp_poolname, LOV_MAXPOOLNAME) == 0)) ||
-                   ((v1->lmm_magic == LOV_USER_MAGIC_V3) &&
+                   ((v3->lmm_magic == LOV_USER_MAGIC_V3) &&
                     (strcmp(param->fp_poolname, "*") == 0))) {
                        found = true;
                        break;
                }
        }
 
+found:
        if ((found && !param->fp_exclude_pool) ||
            (!found && param->fp_exclude_pool))
                return 1;
@@ -3904,12 +4482,15 @@ static int find_check_pool(struct find_param *param)
 
 static int find_check_comp_options(struct find_param *param)
 {
-       lstat_t *st = &param->fp_lmd->lmd_st;
        struct lov_comp_md_v1 *comp_v1, *forged_v1 = NULL;
-       struct lov_user_md_v1 *v1 = &param->fp_lmd->lmd_lmm;
+       struct lov_user_mds_data *lmd = param->fp_lmd;
+       struct lov_user_md_v1 *v1 = &lmd->lmd_lmm;
        struct lov_comp_md_entry_v1 *entry;
        int i, ret = 0;
 
+       if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+               return -1;
+
        if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
                comp_v1 = (struct lov_comp_md_v1 *)v1;
        } else {
@@ -3919,7 +4500,8 @@ static int find_check_comp_options(struct find_param *param)
                comp_v1 = forged_v1;
                comp_v1->lcm_entry_count = 1;
                entry = &comp_v1->lcm_entries[0];
-               entry->lcme_flags = S_ISDIR(st->st_mode) ? 0 : LCME_FL_INIT;
+               entry->lcme_flags = S_ISDIR(lmd->lmd_stx.stx_mode) ?
+                                   0 : LCME_FL_INIT;
                entry->lcme_extent.e_start = 0;
                entry->lcme_extent.e_end = LUSTRE_EOF;
        }
@@ -3974,7 +4556,7 @@ static int find_check_comp_options(struct find_param *param)
                break;
        }
 out:
-       if (forged_v1 != NULL)
+       if (forged_v1)
                free(forged_v1);
        return ret;
 }
@@ -4018,8 +4600,8 @@ static bool find_check_lmm_info(struct find_param *param)
               param->fp_check_stripe_size || param->fp_check_layout ||
               param->fp_check_comp_count || param->fp_check_comp_end ||
               param->fp_check_comp_start || param->fp_check_comp_flags ||
-              param->fp_check_mirror_count ||
-              param->fp_check_mirror_state ||
+              param->fp_check_mirror_count || param->fp_check_foreign ||
+              param->fp_check_mirror_state || param->fp_check_ext_size ||
               param->fp_check_projid;
 }
 
@@ -4033,7 +4615,7 @@ static int fget_projid(int fd, int *projid)
        struct fsxattr fsx;
        int rc;
 
-       rc = ioctl(fd, LL_IOC_FSGETXATTR, &fsx);
+       rc = ioctl(fd, FS_IOC_FSGETXATTR, &fsx);
        if (rc)
                return -errno;
 
@@ -4045,13 +4627,14 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                        void *data, struct dirent64 *de)
 {
        struct find_param *param = (struct find_param *)data;
+       struct lov_user_mds_data *lmd = param->fp_lmd;
        DIR *dir = dirp == NULL ? NULL : *dirp;
        int decision = 1; /* 1 is accepted; -1 is rejected. */
-       lstat_t *st = &param->fp_lmd->lmd_st;
        int lustre_fs = 1;
        int checked_type = 0;
        int ret = 0;
        __u32 stripe_count = 0;
+       __u64 flags;
        int fd = -2;
 
        if (parent == NULL && dir == NULL)
@@ -4060,6 +4643,7 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
        /* If a regular expression is presented, make the initial decision */
        if (param->fp_pattern != NULL) {
                char *fname = strrchr(path, '/');
+
                fname = (fname == NULL ? path : fname + 1);
                ret = fnmatch(param->fp_pattern, fname, 0);
                if ((ret == FNM_NOMATCH && !param->fp_exclude_pattern) ||
@@ -4082,10 +4666,13 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
 
        ret = 0;
 
-       /* Request MDS for the stat info if some of these parameters need
-        * to be compared. */
+       /*
+        * Request MDS for the stat info if some of these parameters need
+        * to be compared.
+        */
        if (param->fp_obd_uuid || param->fp_mdt_uuid ||
            param->fp_check_uid || param->fp_check_gid ||
+           param->fp_newerxy || param->fp_btime ||
            param->fp_atime || param->fp_mtime || param->fp_ctime ||
            param->fp_check_size || param->fp_check_blocks ||
            find_check_lmm_info(param) ||
@@ -4093,14 +4680,26 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                decision = 0;
 
        if (param->fp_type != 0 && checked_type == 0)
-                decision = 0;
+               decision = 0;
 
        if (decision == 0) {
-               if (param->fp_check_mdt_count || param->fp_check_hash_type) {
+               if (dir && (param->fp_check_mdt_count ||
+                   param->fp_check_hash_type || param->fp_check_foreign)) {
                        param->fp_get_lmv = 1;
                        ret = cb_get_dirstripe(path, dir, param);
-                       if (ret != 0)
+                       if (ret != 0) {
+                               /*
+                                * XXX this works to decide for foreign
+                                * criterion only
+                                */
+                               if (errno == ENODATA &&
+                                   param->fp_check_foreign) {
+                                       if (param->fp_exclude_foreign)
+                                               goto foreign;
+                                       goto decided;
+                               }
                                return ret;
+                       }
                }
 
                param->fp_lmd->lmd_lmm.lmm_magic = 0;
@@ -4110,8 +4709,10 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                    find_check_lmm_info(param)) {
                        struct lov_user_md *lmm = &param->fp_lmd->lmd_lmm;
 
-                       /* We need to "fake" the "use the default" values
-                        * since the lmm struct is zeroed out at this point. */
+                       /*
+                        * We need to "fake" the "use the default" values
+                        * since the lmm struct is zeroed out at this point.
+                        */
                        lmm->lmm_magic = LOV_USER_MAGIC_V1;
                        lmm->lmm_pattern = LOV_PATTERN_DEFAULT;
                        if (!param->fp_raw)
@@ -4125,13 +4726,15 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                        if (dir != NULL) {
                                ret = llapi_file_fget_mdtidx(dirfd(dir),
                                                     &param->fp_file_mdt_index);
-                       } else if (S_ISREG(st->st_mode)) {
-                               /* FIXME: we could get the MDT index from the
+                       } else if (S_ISREG(lmd->lmd_stx.stx_mode)) {
+                               /*
+                                * FIXME: we could get the MDT index from the
                                 * file's FID in lmd->lmd_lmm.lmm_oi without
                                 * opening the file, once we are sure that
                                 * LFSCK2 (2.6) has fixed up pre-2.0 LOV EAs.
                                 * That would still be an ioctl() to map the
-                                * FID to the MDT, but not an open RPC. */
+                                * FID to the MDT, but not an open RPC.
+                                */
                                fd = open(path, O_RDONLY);
                                if (fd > 0) {
                                        ret = llapi_file_fget_mdtidx(fd,
@@ -4140,8 +4743,10 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                                        ret = -errno;
                                }
                        } else {
-                               /* For a special file, we assume it resides on
-                                * the same MDT as the parent directory. */
+                               /*
+                                * For a special file, we assume it resides on
+                                * the same MDT as the parent directory.
+                                */
                                ret = llapi_file_fget_mdtidx(dirfd(parent),
                                                     &param->fp_file_mdt_index);
                        }
@@ -4159,7 +4764,7 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
        }
 
        if (param->fp_type && !checked_type) {
-               if ((st->st_mode & S_IFMT) == param->fp_type) {
+               if ((lmd->lmd_stx.stx_mode & S_IFMT) == param->fp_type) {
                        if (param->fp_exclude_type)
                                goto decided;
                } else {
@@ -4168,10 +4773,11 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                }
        }
 
-        /* Prepare odb. */
+       /* Prepare odb. */
        if (param->fp_obd_uuid || param->fp_mdt_uuid) {
                if (lustre_fs && param->fp_got_uuids &&
-                   param->fp_dev != st->st_dev) {
+                   param->fp_dev != makedev(lmd->lmd_stx.stx_dev_major,
+                                            lmd->lmd_stx.stx_dev_minor)) {
                        /* A lustre/lustre mount point is crossed. */
                        param->fp_got_uuids = 0;
                        param->fp_obds_printed = 0;
@@ -4185,14 +4791,21 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                        if (ret)
                                goto out;
 
-                       param->fp_dev = st->st_dev;
+                       param->fp_dev = makedev(lmd->lmd_stx.stx_dev_major,
+                                               lmd->lmd_stx.stx_dev_minor);
                } else if (!lustre_fs && param->fp_got_uuids) {
                        /* A lustre/non-lustre mount point is crossed. */
                        param->fp_got_uuids = 0;
                        param->fp_mdt_index = OBD_NOT_FOUND;
                        param->fp_obd_index = OBD_NOT_FOUND;
-                }
-        }
+               }
+       }
+
+       if (param->fp_check_foreign) {
+               decision = find_check_foreign(param);
+               if (decision == -1)
+                       goto decided;
+       }
 
        if (param->fp_check_stripe_size) {
                decision = find_check_stripe_size(param);
@@ -4200,6 +4813,12 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                        goto decided;
        }
 
+       if (param->fp_check_ext_size) {
+               decision = find_check_ext_size(param);
+               if (decision == -1)
+                       goto decided;
+       }
+
        if (param->fp_check_stripe_count) {
                decision = find_value_cmp(stripe_count, param->fp_stripe_count,
                                          param->fp_stripe_count_sign,
@@ -4209,6 +4828,11 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
        }
 
        if (param->fp_check_mdt_count) {
+               if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
+                       decision = -1;
+                       goto decided;
+               }
+
                decision = find_value_cmp(
                                param->fp_lmv_md->lum_stripe_count,
                                param->fp_mdt_count,
@@ -4227,6 +4851,11 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
        if (param->fp_check_hash_type) {
                __u32 found;
 
+               if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
+                       decision = -1;
+                       goto decided;
+               }
+
                found = param->fp_lmv_md->lum_hash_type & param->fp_hash_type;
                if ((found && param->fp_exclude_hash_type) ||
                    (!found && !param->fp_exclude_hash_type)) {
@@ -4240,15 +4869,19 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
            (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND))
                goto decided;
 
-       /* If an OST or MDT UUID is given, and some OST matches,
-        * check it here. */
+       /*
+        * If an OST or MDT UUID is given, and some OST matches,
+        * check it here.
+        */
        if (param->fp_obd_index != OBD_NOT_FOUND ||
            param->fp_mdt_index != OBD_NOT_FOUND) {
                if (param->fp_obd_uuid) {
                        if (check_obd_match(param)) {
-                               /* If no mdtuuid is given, we are done.
+                               /*
+                                * If no mdtuuid is given, we are done.
                                 * Otherwise, fall through to the mdtuuid
-                                * check below. */
+                                * check below.
+                                */
                                if (!param->fp_mdt_uuid)
                                        goto obd_matches;
                        } else {
@@ -4265,7 +4898,7 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
 
 obd_matches:
        if (param->fp_check_uid) {
-               if (st->st_uid == param->fp_uid) {
+               if (lmd->lmd_stx.stx_uid == param->fp_uid) {
                        if (param->fp_exclude_uid)
                                goto decided;
                } else {
@@ -4275,7 +4908,7 @@ obd_matches:
        }
 
        if (param->fp_check_gid) {
-               if (st->st_gid == param->fp_gid) {
+               if (lmd->lmd_stx.stx_gid == param->fp_gid) {
                        if (param->fp_exclude_gid)
                                goto decided;
                } else {
@@ -4327,63 +4960,119 @@ obd_matches:
        /* Check the time on mds. */
        decision = 1;
        if (param->fp_atime || param->fp_mtime || param->fp_ctime) {
-                int for_mds;
+               int for_mds;
+
+               for_mds = lustre_fs ?
+                         (S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) : 0;
+               decision = find_time_check(param, for_mds);
+               if (decision == -1)
+                       goto decided;
+       }
+
+       if (param->fp_btime) {
+               if (!(lmd->lmd_stx.stx_mask & STATX_BTIME)) {
+                       ret = -EOPNOTSUPP;
+                       goto out;
+               }
+
+               decision = find_value_cmp(lmd->lmd_stx.stx_btime.tv_sec,
+                                         param->fp_btime, param->fp_bsign,
+                                         param->fp_exclude_btime,
+                                         param->fp_time_margin, 0);
+               if (decision == -1)
+                       goto decided;
+       }
+
+       if (param->fp_newerxy) {
+               int for_mds;
 
                for_mds = lustre_fs ?
-                       (S_ISREG(st->st_mode) && stripe_count) : 0;
-                decision = find_time_check(st, param, for_mds);
-                if (decision == -1)
-                        goto decided;
-        }
-
-        /* If file still fits the request, ask ost for updated info.
-           The regular stat is almost of the same speed as some new
-           'glimpse-size-ioctl'. */
-
-       if ((param->fp_check_size || param->fp_check_blocks) &&
-           ((S_ISREG(st->st_mode) && stripe_count) || S_ISDIR(st->st_mode)))
+                         (S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) : 0;
+               decision = find_newerxy_check(param, for_mds, true);
+               if (decision == -1)
+                       goto decided;
+               if (decision < 0) {
+                       ret = decision;
+                       goto out;
+               }
+       }
+
+       flags = param->fp_lmd->lmd_flags;
+       if (param->fp_check_size &&
+           ((S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) ||
+             S_ISDIR(lmd->lmd_stx.stx_mode)) &&
+           !(flags & OBD_MD_FLSIZE ||
+             (param->fp_lazy && flags & OBD_MD_FLLAZYSIZE)))
+               decision = 0;
+
+       if (param->fp_check_blocks &&
+           ((S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) ||
+             S_ISDIR(lmd->lmd_stx.stx_mode)) &&
+           !(flags & OBD_MD_FLBLOCKS ||
+             (param->fp_lazy && flags & OBD_MD_FLLAZYBLOCKS)))
                decision = 0;
 
+       /*
+        * If file still fits the request, ask ost for updated info.
+        * The regular stat is almost of the same speed as some new
+        * 'glimpse-size-ioctl'.
+        */
        if (!decision) {
-                /* For regular files with the stripe the decision may have not
-                 * been taken yet if *time or size is to be checked. */
+               lstat_t st;
+
+               /*
+                * For regular files with the stripe the decision may have not
+                * been taken yet if *time or size is to be checked.
+                */
                if (param->fp_obd_index != OBD_NOT_FOUND)
-                        print_failed_tgt(param, path, LL_STATFS_LOV);
+                       print_failed_tgt(param, path, LL_STATFS_LOV);
 
                if (param->fp_mdt_index != OBD_NOT_FOUND)
-                        print_failed_tgt(param, path, LL_STATFS_LMV);
+                       print_failed_tgt(param, path, LL_STATFS_LMV);
 
                if (dir != NULL)
-                       ret = fstat_f(dirfd(dir), st);
+                       ret = fstat_f(dirfd(dir), &st);
                else if (de != NULL)
-                       ret = fstatat_f(dirfd(parent), de->d_name, st,
+                       ret = fstatat_f(dirfd(parent), de->d_name, &st,
                                        AT_SYMLINK_NOFOLLOW);
                else
-                       ret = lstat_f(path, st);
-
-                if (ret) {
-                        if (errno == ENOENT) {
-                                llapi_error(LLAPI_MSG_ERROR, -ENOENT,
-                                            "warning: %s: %s does not exist",
-                                            __func__, path);
-                                goto decided;
-                        } else {
+                       ret = lstat_f(path, &st);
+
+               if (ret) {
+                       if (errno == ENOENT) {
+                               llapi_error(LLAPI_MSG_ERROR, -ENOENT,
+                                           "warning: %s: %s does not exist",
+                                           __func__, path);
+                               goto decided;
+                       } else {
                                ret = -errno;
                                llapi_error(LLAPI_MSG_ERROR, ret,
-                                           "%s: IOC_LOV_GETINFO on %s failed",
+                                           "%s: stat on %s failed",
                                            __func__, path);
                                goto out;
                        }
                }
 
+               convert_lmd_statx(param->fp_lmd, &st, true);
                /* Check the time on osc. */
-               decision = find_time_check(st, param, 0);
+               decision = find_time_check(param, 0);
                if (decision == -1)
                        goto decided;
+
+               if (param->fp_newerxy) {
+                       decision = find_newerxy_check(param, 0, false);
+                       if (decision == -1)
+                               goto decided;
+                       if (decision < 0) {
+                               ret = decision;
+                               goto out;
+                       }
+               }
        }
 
        if (param->fp_check_size) {
-               decision = find_value_cmp(st->st_size, param->fp_size,
+               decision = find_value_cmp(lmd->lmd_stx.stx_size,
+                                         param->fp_size,
                                          param->fp_size_sign,
                                          param->fp_exclude_size,
                                          param->fp_size_units, 0);
@@ -4392,7 +5081,8 @@ obd_matches:
        }
 
        if (param->fp_check_blocks) { /* convert st_blocks to bytes */
-               decision = find_value_cmp(st->st_blocks * 512, param->fp_blocks,
+               decision = find_value_cmp(lmd->lmd_stx.stx_blocks * 512,
+                                         param->fp_blocks,
                                          param->fp_blocks_sign,
                                          param->fp_exclude_blocks,
                                          param->fp_blocks_units, 0);
@@ -4400,6 +5090,7 @@ obd_matches:
                        goto decided;
        }
 
+foreign:
        llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
        if (param->fp_zero_end)
                llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
@@ -4468,7 +5159,7 @@ static int cb_migrate_mdt_init(char *path, DIR *parent, DIR **dirp,
        ret = llapi_ioctl_pack(&data, &rawbuf, sizeof(raw));
        if (ret != 0) {
                llapi_error(LLAPI_MSG_ERROR, ret,
-                           "llapi_obd_statfs: error packing ioctl data");
+                           "%s: error packing ioctl data", __func__);
                goto out;
        }
 
@@ -4476,25 +5167,26 @@ migrate:
        ret = ioctl(fd, LL_IOC_MIGRATE, rawbuf);
        if (ret != 0) {
                if (errno == EBUSY && !retry) {
-                       /* because migrate may not be able to lock all involved
+                       /*
+                        * because migrate may not be able to lock all involved
                         * objects in order, for some of them it try lock, while
                         * there may be conflicting COS locks and cause migrate
                         * fail with EBUSY, hope a sync() could cause
-                        * transaction commit and release these COS locks. */
+                        * transaction commit and release these COS locks.
+                        */
                        sync();
                        retry = true;
                        goto migrate;
                } else if (errno == EALREADY) {
                        if (param->fp_verbose & VERBOSE_DETAIL)
                                llapi_printf(LLAPI_MSG_NORMAL,
-                                            "%s was migrated to MDT%d already\n",
+                                            "%s migrated to MDT%d already\n",
                                             path, lmu->lum_stripe_offset);
                        ret = 0;
                } else {
                        ret = -errno;
-                       llapi_error(LLAPI_MSG_ERROR, ret,
-                                   "%s migrate failed: %s (%d)\n",
-                                   path, strerror(-ret), ret);
+                       llapi_error(LLAPI_MSG_ERROR, ret, "%s migrate failed",
+                                   path);
                        goto out;
                }
        } else if (param->fp_verbose & VERBOSE_DETAIL) {
@@ -4506,11 +5198,13 @@ migrate:
 
 out:
        if (dirp != NULL) {
-               /* If the directory is being migration, we need
+               /*
+                * If the directory is being migration, we need
                 * close the directory after migration,
                 * so the old directory cache will be cleanup
                 * on the client side, and re-open to get the
-                * new directory handle */
+                * new directory handle
+                */
                *dirp = opendir(path);
                if (*dirp == NULL) {
                        ret = -errno;
@@ -4571,7 +5265,8 @@ int llapi_mv(char *path, struct find_param *param)
 
        if (!printed) {
                llapi_error(LLAPI_MSG_ERROR, -ESTALE,
-                           "llapi_mv() is deprecated, use llapi_migrate_mdt()\n");
+                         "%s() is deprecated, use llapi_migrate_mdt() instead",
+                         __func__);
                printed = true;
        }
 #endif
@@ -4580,7 +5275,7 @@ int llapi_mv(char *path, struct find_param *param)
 
 int llapi_find(char *path, struct find_param *param)
 {
-        return param_callback(path, cb_find_init, cb_common_fini, param);
+       return param_callback(path, cb_find_init, cb_common_fini, param);
 }
 
 /*
@@ -4590,9 +5285,9 @@ int llapi_find(char *path, struct find_param *param)
  */
 int llapi_file_fget_mdtidx(int fd, int *mdtidx)
 {
-        if (ioctl(fd, LL_IOC_GET_MDTIDX, mdtidx) < 0)
-                return -errno;
-        return 0;
+       if (ioctl(fd, LL_IOC_GET_MDTIDX, mdtidx) < 0)
+               return -errno;
+       return 0;
 }
 
 static int cb_get_mdt_index(char *path, DIR *parent, DIR **dirp, void *data,
@@ -4662,9 +5357,9 @@ out:
 static int cb_getstripe(char *path, DIR *parent, DIR **dirp, void *data,
                        struct dirent64 *de)
 {
-        struct find_param *param = (struct find_param *)data;
+       struct find_param *param = (struct find_param *)data;
        DIR *d = dirp == NULL ? NULL : *dirp;
-        int ret = 0;
+       int ret = 0;
 
        if (parent == NULL && d == NULL)
                return -EINVAL;
@@ -4685,20 +5380,22 @@ static int cb_getstripe(char *path, DIR *parent, DIR **dirp, void *data,
        else
                return 0;
 
-        if (ret) {
-                if (errno == ENODATA && d != NULL) {
-                       /* We need to "fake" the "use the default" values
+       if (ret) {
+               if (errno == ENODATA && d != NULL) {
+                       /*
+                        * We need to "fake" the "use the default" values
                         * since the lmm struct is zeroed out at this point.
                         * The magic needs to be set in order to satisfy
                         * a check later on in the code path.
                         * The object_seq needs to be set for the "(Default)"
-                        * prefix to be displayed. */
+                        * prefix to be displayed.
+                        */
                        if (param->fp_get_default_lmv) {
                                struct lmv_user_md *lum = param->fp_lmv_md;
 
                                lum->lum_magic = LMV_USER_MAGIC;
                                lum->lum_stripe_count = 0;
-                               lum->lum_stripe_offset = -1;
+                               lum->lum_stripe_offset = LMV_OFFSET_DEFAULT;
                                goto dump;
                        } else if (param->fp_get_lmv) {
                                struct lmv_user_md *lum = param->fp_lmv_md;
@@ -4724,23 +5421,23 @@ static int cb_getstripe(char *path, DIR *parent, DIR **dirp, void *data,
                                lmm->lmm_stripe_offset = -1;
                                goto dump;
                        }
-                } else if (errno == ENODATA && parent != NULL) {
+               } else if (errno == ENODATA && parent != NULL) {
                        if (!param->fp_obd_uuid && !param->fp_mdt_uuid)
-                                llapi_printf(LLAPI_MSG_NORMAL,
-                                             "%s has no stripe info\n", path);
-                        goto out;
-                } else if (errno == ENOENT) {
-                        llapi_error(LLAPI_MSG_WARN, -ENOENT,
-                                    "warning: %s: %s does not exist",
-                                    __func__, path);
-                        goto out;
-                } else if (errno == ENOTTY) {
-                        ret = -errno;
-                        llapi_error(LLAPI_MSG_ERROR, ret,
-                                    "%s: '%s' not on a Lustre fs?",
-                                    __func__, path);
-                } else {
-                        ret = -errno;
+                               llapi_printf(LLAPI_MSG_NORMAL,
+                                            "%s has no stripe info\n", path);
+                       goto out;
+               } else if (errno == ENOENT) {
+                       llapi_error(LLAPI_MSG_WARN, -ENOENT,
+                                   "warning: %s: %s does not exist",
+                                   __func__, path);
+                       goto out;
+               } else if (errno == ENOTTY) {
+                       ret = -errno;
+                       llapi_error(LLAPI_MSG_ERROR, ret,
+                                   "%s: '%s' not on a Lustre fs?",
+                                   __func__, path);
+               } else {
+                       ret = -errno;
 err_out:
                        llapi_error(LLAPI_MSG_ERROR, ret,
                                    "error: %s: %s failed for %s",
@@ -4748,8 +5445,8 @@ err_out:
                                    "IOC_MDC_GETFILESTRIPE", path);
                }
 
-                return ret;
-        }
+               return ret;
+       }
 
 dump:
        if (!(param->fp_verbose & VERBOSE_MDTINDEX))
@@ -4768,33 +5465,33 @@ out:
 int llapi_getstripe(char *path, struct find_param *param)
 {
        return param_callback(path, (param->fp_verbose & VERBOSE_MDTINDEX) ?
-                              cb_get_mdt_index : cb_getstripe,
-                              cb_common_fini, param);
+                             cb_get_mdt_index : cb_getstripe,
+                             cb_common_fini, param);
 }
 
 int llapi_obd_fstatfs(int fd, __u32 type, __u32 index,
                      struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
 {
        char raw[MAX_IOC_BUFLEN] = {'\0'};
-        char *rawbuf = raw;
-        struct obd_ioctl_data data = { 0 };
-        int rc = 0;
-
-        data.ioc_inlbuf1 = (char *)&type;
-        data.ioc_inllen1 = sizeof(__u32);
-        data.ioc_inlbuf2 = (char *)&index;
-        data.ioc_inllen2 = sizeof(__u32);
-        data.ioc_pbuf1 = (char *)stat_buf;
-        data.ioc_plen1 = sizeof(struct obd_statfs);
-        data.ioc_pbuf2 = (char *)uuid_buf;
-        data.ioc_plen2 = sizeof(struct obd_uuid);
+       char *rawbuf = raw;
+       struct obd_ioctl_data data = { 0 };
+       int rc = 0;
+
+       data.ioc_inlbuf1 = (char *)&type;
+       data.ioc_inllen1 = sizeof(__u32);
+       data.ioc_inlbuf2 = (char *)&index;
+       data.ioc_inllen2 = sizeof(__u32);
+       data.ioc_pbuf1 = (char *)stat_buf;
+       data.ioc_plen1 = sizeof(struct obd_statfs);
+       data.ioc_pbuf2 = (char *)uuid_buf;
+       data.ioc_plen2 = sizeof(struct obd_uuid);
 
        rc = llapi_ioctl_pack(&data, &rawbuf, sizeof(raw));
-        if (rc != 0) {
-                llapi_error(LLAPI_MSG_ERROR, rc,
-                            "llapi_obd_statfs: error packing ioctl data");
-                return rc;
-        }
+       if (rc != 0) {
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "%s: error packing ioctl data", __func__);
+               return rc;
+       }
 
        rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
 
@@ -4812,8 +5509,10 @@ int llapi_obd_statfs(char *path, __u32 type, __u32 index,
                rc = -errno;
                llapi_error(LLAPI_MSG_ERROR, rc, "error: %s: opening '%s'",
                            __func__, path);
-               /* If we can't even open a file on the filesystem (e.g. with
-                * -ESHUTDOWN), force caller to exit or it will loop forever. */
+               /*
+                * If we can't even open a file on the filesystem (e.g. with
+                * -ESHUTDOWN), force caller to exit or it will loop forever.
+                */
                return -ENODEV;
        }
 
@@ -4866,7 +5565,7 @@ failed:
 }
 
 int llapi_target_iterate(int type_num, char **obd_type,
-                         void *args, llapi_cb_t cb)
+                        void *args, llapi_cb_t cb)
 {
        int i, rc = 0;
        glob_t param;
@@ -4931,23 +5630,22 @@ free_path:
 }
 
 static void do_target_check(char *obd_type_name, char *obd_name,
-                            char *obd_uuid, void *args)
+                           char *obd_uuid, void *args)
 {
-        int rc;
+       int rc;
 
-        rc = llapi_ping(obd_type_name, obd_name);
-        if (rc == ENOTCONN) {
-                llapi_printf(LLAPI_MSG_NORMAL, "%s inactive.\n", obd_name);
-        } else if (rc) {
-                llapi_error(LLAPI_MSG_ERROR, rc, "error: check '%s'", obd_name);
-        } else {
-                llapi_printf(LLAPI_MSG_NORMAL, "%s active.\n", obd_name);
-        }
+       rc = llapi_ping(obd_type_name, obd_name);
+       if (rc == ENOTCONN)
+               llapi_printf(LLAPI_MSG_NORMAL, "%s inactive.\n", obd_name);
+       else if (rc)
+               llapi_error(LLAPI_MSG_ERROR, rc, "error: check '%s'", obd_name);
+       else
+               llapi_printf(LLAPI_MSG_NORMAL, "%s active.\n", obd_name);
 }
 
 int llapi_target_check(int type_num, char **obd_type, char *dir)
 {
-        return llapi_target_iterate(type_num, obd_type, NULL, do_target_check);
+       return llapi_target_iterate(type_num, obd_type, NULL, do_target_check);
 }
 
 #undef MAX_STRING_SIZE
@@ -4955,14 +5653,14 @@ int llapi_target_check(int type_num, char **obd_type, char *dir)
 /* Is this a lustre fs? */
 int llapi_is_lustre_mnttype(const char *type)
 {
-        return (strcmp(type, "lustre") == 0 || strcmp(type,"lustre_lite") == 0);
+       return strcmp(type, "lustre") == 0 || strcmp(type, "lustre_tgt") == 0;
 }
 
 /* Is this a lustre client fs? */
 int llapi_is_lustre_mnt(struct mntent *mnt)
 {
-        return (llapi_is_lustre_mnttype(mnt->mnt_type) &&
-                strstr(mnt->mnt_fsname, ":/") != NULL);
+       return (llapi_is_lustre_mnttype(mnt->mnt_type) &&
+               strstr(mnt->mnt_fsname, ":/") != NULL);
 }
 
 int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
@@ -4985,253 +5683,14 @@ int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
        rc = ioctl(root, OBD_IOC_QUOTACTL, qctl);
        if (rc < 0)
                rc = -errno;
+       if (rc == -ENOENT && LUSTRE_Q_CMD_IS_POOL(qctl->qc_cmd))
+               llapi_error(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, rc,
+                           "Cannot find pool '%s'", qctl->qc_poolname);
 
        close(root);
        return rc;
 }
 
-/* Print mdtname 'name' into 'buf' using 'format'.  Add -MDT0000 if needed.
- * format must have %s%s, buf must be > 16
- * Eg: if name = "lustre-MDT0000", "lustre", or "lustre-MDT0000_UUID"
- *     then buf = "lustre-MDT0000"
- */
-static int get_mdtname(char *name, char *format, char *buf)
-{
-        char suffix[]="-MDT0000";
-        int len = strlen(name);
-
-        if ((len > 5) && (strncmp(name + len - 5, "_UUID", 5) == 0)) {
-                name[len - 5] = '\0';
-                len -= 5;
-        }
-
-        if (len > 8) {
-                if ((len <= 16) && strncmp(name + len - 8, "-MDT", 4) == 0) {
-                        suffix[0] = '\0';
-                } else {
-                        /* Not enough room to add suffix */
-                        llapi_err_noerrno(LLAPI_MSG_ERROR,
-                                         "Invalid MDT name |%s|", name);
-                        return -EINVAL;
-                }
-        }
-
-        return sprintf(buf, format, name, suffix);
-}
-
-/** ioctl on filsystem root, with mdtindex sent as data
- * \param mdtname path, fsname, or mdtname (lutre-MDT0004)
- * \param mdtidxp pointer to integer within data to be filled in with the
- *    mdt index (0 if no mdt is specified).  NULL won't be filled.
- */
-int root_ioctl(const char *mdtname, int opc, void *data, int *mdtidxp,
-              int want_error)
-{
-       char fsname[20];
-       char *ptr;
-       int fd, rc;
-       long index;
-
-       /* Take path, fsname, or MDTname.  Assume MDT0000 in the former cases.
-        Open root and parse mdt index. */
-       if (mdtname[0] == '/') {
-               index = 0;
-               rc = get_root_path(WANT_FD | want_error, NULL, &fd,
-                                  (char *)mdtname, -1);
-       } else {
-               if (get_mdtname((char *)mdtname, "%s%s", fsname) < 0)
-                       return -EINVAL;
-               ptr = fsname + strlen(fsname) - 8;
-               *ptr = '\0';
-               index = strtol(ptr + 4, NULL, 16);
-               rc = get_root_path(WANT_FD | want_error, fsname, &fd, NULL, -1);
-       }
-       if (rc < 0) {
-               if (want_error)
-                       llapi_err_noerrno(LLAPI_MSG_ERROR,
-                                         "Can't open %s: %d\n", mdtname, rc);
-               return rc;
-       }
-
-       if (mdtidxp)
-               *mdtidxp = index;
-
-       rc = ioctl(fd, opc, data);
-       if (rc == -1)
-               rc = -errno;
-       else
-               rc = 0;
-       close(fd);
-       return rc;
-}
-
-int llapi_fid2path(const char *device, const char *fidstr, char *buf,
-                  int buflen, long long *recno, int *linkno)
-{
-       const char *fidstr_orig = fidstr;
-       struct lu_fid fid;
-       struct getinfo_fid2path *gf;
-       char *a;
-       char *b;
-       int rc;
-
-       while (*fidstr == '[')
-               fidstr++;
-
-       sscanf(fidstr, SFID, RFID(&fid));
-       if (!fid_is_sane(&fid)) {
-               llapi_err_noerrno(LLAPI_MSG_ERROR,
-                                 "bad FID format '%s', should be [seq:oid:ver]"
-                                 " (e.g. "DFID")\n", fidstr_orig,
-                                 (unsigned long long)FID_SEQ_NORMAL, 2, 0);
-               return -EINVAL;
-       }
-
-       gf = malloc(sizeof(*gf) + buflen);
-       if (gf == NULL)
-               return -ENOMEM;
-
-       gf->gf_fid = fid;
-       gf->gf_recno = *recno;
-       gf->gf_linkno = *linkno;
-       gf->gf_pathlen = buflen;
-
-       /* Take path or fsname */
-       rc = root_ioctl(device, OBD_IOC_FID2PATH, gf, NULL, 0);
-       if (rc)
-               goto out_free;
-
-       b = buf;
-       /* strip out instances of // */
-       for (a = gf->gf_u.gf_path; *a != '\0'; a++) {
-               if ((*a == '/') && (*(a + 1) == '/'))
-                       continue;
-               *b = *a;
-               b++;
-       }
-       *b = '\0';
-
-       if (buf[0] == '\0') { /* ROOT path */
-               buf[0] = '/';
-               buf[1] = '\0';
-       }
-
-       *recno = gf->gf_recno;
-       *linkno = gf->gf_linkno;
-
-out_free:
-       free(gf);
-       return rc;
-}
-
-static int fid_from_lma(const char *path, int fd, struct lu_fid *fid)
-{
-       char                     buf[512];
-       struct lustre_mdt_attrs *lma;
-       int                      rc;
-
-       if (path == NULL)
-               rc = fgetxattr(fd, XATTR_NAME_LMA, buf, sizeof(buf));
-       else
-               rc = lgetxattr(path, XATTR_NAME_LMA, buf, sizeof(buf));
-       if (rc < 0)
-               return -errno;
-       lma = (struct lustre_mdt_attrs *)buf;
-       fid_le_to_cpu(fid, &lma->lma_self_fid);
-       return 0;
-}
-
-int llapi_get_mdt_index_by_fid(int fd, const struct lu_fid *fid,
-                              int *mdt_index)
-{
-       int     rc;
-
-       rc = ioctl(fd, LL_IOC_FID2MDTIDX, fid);
-       if (rc < 0)
-               return -errno;
-
-       *mdt_index = rc;
-
-       return rc;
-}
-
-int llapi_fd2fid(int fd, struct lu_fid *fid)
-{
-       int rc;
-
-       memset(fid, 0, sizeof(*fid));
-
-       rc = ioctl(fd, LL_IOC_PATH2FID, fid) < 0 ? -errno : 0;
-       if (rc == -EINVAL || rc == -ENOTTY)
-               rc = fid_from_lma(NULL, fd, fid);
-
-       return rc;
-}
-
-int llapi_path2fid(const char *path, struct lu_fid *fid)
-{
-       int fd, rc;
-
-       memset(fid, 0, sizeof(*fid));
-       fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
-       if (fd < 0) {
-               if (errno == ELOOP || errno == ENXIO)
-                       return fid_from_lma(path, -1, fid);
-               return -errno;
-       }
-
-       rc = llapi_fd2fid(fd, fid);
-       if (rc == -EINVAL || rc == -ENOTTY)
-               rc = fid_from_lma(path, -1, fid);
-
-       close(fd);
-       return rc;
-}
-
-int llapi_fd2parent(int fd, unsigned int linkno, struct lu_fid *parent_fid,
-                   char *name, size_t name_size)
-{
-       struct getparent        *gp;
-       int                      rc;
-
-       gp = malloc(sizeof(*gp) + name_size);
-       if (gp == NULL)
-               return -ENOMEM;
-
-       gp->gp_linkno = linkno;
-       gp->gp_name_size = name_size;
-
-       rc = ioctl(fd, LL_IOC_GETPARENT, gp);
-       if (rc < 0) {
-               rc = -errno;
-               goto err_free;
-       }
-
-       *parent_fid = gp->gp_fid;
-
-       strncpy(name, gp->gp_name, name_size);
-       name[name_size - 1] = '\0';
-
-err_free:
-       free(gp);
-       return rc;
-}
-
-int llapi_path2parent(const char *path, unsigned int linkno,
-                     struct lu_fid *parent_fid, char *name, size_t name_size)
-{
-       int     fd;
-       int     rc;
-
-       fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
-       if (fd < 0)
-               return -errno;
-
-       rc = llapi_fd2parent(fd, linkno, parent_fid, name, name_size);
-       close(fd);
-       return rc;
-}
-
 int llapi_get_connect_flags(const char *mnt, __u64 *flags)
 {
        int root;
@@ -5559,32 +6018,6 @@ out:
 }
 
 /**
- * Attempt to open a file with Lustre file identifier \a fid
- * and return an open file descriptor.
- *
- * \param[in] lustre_dir       path within Lustre filesystem containing \a fid
- * \param[in] fid              Lustre file identifier of file to open
- * \param[in] flags            open() flags
- *
- * \retval                     non-negative file descriptor on successful open
- * \retval                     -1 if an error occurred
- */
-int llapi_open_by_fid(const char *lustre_dir, const struct lu_fid *fid,
-                     int flags)
-{
-       char mntdir[PATH_MAX];
-       char path[PATH_MAX];
-       int rc;
-
-       rc = llapi_search_mounts(lustre_dir, 0, mntdir, NULL);
-       if (rc != 0)
-               return -1;
-
-       snprintf(path, sizeof(path), "%s/.lustre/fid/"DFID, mntdir, PFID(fid));
-       return open(path, flags);
-}
-
-/**
  * Take group lock.
  *
  * \param fd   File to lock.