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LU-9505 llapi: treat MDT index as a hex number
[fs/lustre-release.git] / lustre / utils / liblustreapi.c
index 820d28d..2df30c6 100644 (file)
@@ -23,7 +23,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2015, Intel Corporation.
+ * Copyright (c) 2011, 2016, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -41,6 +41,7 @@
 #define _GNU_SOURCE
 #endif
 
+#include <ctype.h>
 #include <mntent.h>
 #include <stdlib.h>
 #include <stdio.h>
 #endif
 #include <poll.h>
 
+#include <libcfs/util/ioctl.h>
 #include <libcfs/util/param.h>
 #include <libcfs/util/string.h>
 #include <lnet/lnetctl.h>
 #include <lustre/lustreapi.h>
-#include <lustre_ioctl.h>
+#include <linux/lustre_ostid.h>
+#include <linux/lustre_ioctl.h>
 #include "lustreapi_internal.h"
 
 static int llapi_msg_level = LLAPI_MSG_MAX;
 
+char *mdt_hash_name[] = { "none",
+                         LMV_HASH_NAME_ALL_CHARS,
+                         LMV_HASH_NAME_FNV_1A_64 };
+
 void llapi_msg_set_level(int level)
 {
         /* ensure level is in the good range */
@@ -248,6 +255,95 @@ int llapi_parse_size(const char *optarg, unsigned long long *size,
        return 0;
 }
 
+int obd_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max_len)
+{
+       struct obd_ioctl_data *overlay;
+       char *ptr;
+
+       data->ioc_len = obd_ioctl_packlen(data);
+       data->ioc_version = OBD_IOCTL_VERSION;
+
+       if (*pbuf != NULL && data->ioc_len > max_len) {
+               fprintf(stderr, "pbuf = %p, ioc_len = %u, max_len = %d\n",
+                       *pbuf, data->ioc_len, max_len);
+               return -EINVAL;
+       }
+
+       if (*pbuf == NULL)
+               *pbuf = malloc(data->ioc_len);
+
+       if (*pbuf == NULL)
+               return -ENOMEM;
+
+       overlay = (struct obd_ioctl_data *)*pbuf;
+       memcpy(*pbuf, data, sizeof(*data));
+
+       ptr = overlay->ioc_bulk;
+       if (data->ioc_inlbuf1) {
+               memcpy(ptr, data->ioc_inlbuf1, data->ioc_inllen1);
+               ptr += cfs_size_round(data->ioc_inllen1);
+       }
+
+       if (data->ioc_inlbuf2) {
+               memcpy(ptr, data->ioc_inlbuf2, data->ioc_inllen2);
+               ptr += cfs_size_round(data->ioc_inllen2);
+       }
+
+       if (data->ioc_inlbuf3) {
+               memcpy(ptr, data->ioc_inlbuf3, data->ioc_inllen3);
+               ptr += cfs_size_round(data->ioc_inllen3);
+       }
+
+       if (data->ioc_inlbuf4) {
+               memcpy(ptr, data->ioc_inlbuf4, data->ioc_inllen4);
+               ptr += cfs_size_round(data->ioc_inllen4);
+       }
+
+       return 0;
+}
+
+int obd_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len)
+{
+       struct obd_ioctl_data *overlay;
+       char *ptr;
+
+       if (pbuf == NULL)
+               return 1;
+
+       overlay = (struct obd_ioctl_data *)pbuf;
+
+       /* Preserve the caller's buffer pointers */
+       overlay->ioc_inlbuf1 = data->ioc_inlbuf1;
+       overlay->ioc_inlbuf2 = data->ioc_inlbuf2;
+       overlay->ioc_inlbuf3 = data->ioc_inlbuf3;
+       overlay->ioc_inlbuf4 = data->ioc_inlbuf4;
+
+       memcpy(data, pbuf, sizeof(*data));
+
+       ptr = overlay->ioc_bulk;
+       if (data->ioc_inlbuf1) {
+               memcpy(data->ioc_inlbuf1, ptr, data->ioc_inllen1);
+               ptr += cfs_size_round(data->ioc_inllen1);
+       }
+
+       if (data->ioc_inlbuf2) {
+               memcpy(data->ioc_inlbuf2, ptr, data->ioc_inllen2);
+               ptr += cfs_size_round(data->ioc_inllen2);
+       }
+
+       if (data->ioc_inlbuf3) {
+               memcpy(data->ioc_inlbuf3, ptr, data->ioc_inllen3);
+               ptr += cfs_size_round(data->ioc_inllen3);
+       }
+
+       if (data->ioc_inlbuf4) {
+               memcpy(data->ioc_inlbuf4, ptr, data->ioc_inllen4);
+               ptr += cfs_size_round(data->ioc_inllen4);
+       }
+
+       return 0;
+}
+
 /* XXX: llapi_xxx() functions return negative values upon failure */
 
 int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
@@ -1139,8 +1235,7 @@ int llapi_get_poollist(const char *name, char **poollist, int list_size,
        char *fsname;
         char *ptr;
         DIR *dir;
-        struct dirent pool;
-        struct dirent *cookie = NULL;
+       struct dirent *pool;
         int rc = 0;
         unsigned int nb_entries = 0;
         unsigned int used = 0;
@@ -1192,20 +1287,16 @@ int llapi_get_poollist(const char *name, char **poollist, int list_size,
                goto free_path;
        }
 
-       while(1) {
-               rc = readdir_r(dir, &pool, &cookie);
-               if (rc != 0) {
+       do {
+               errno = 0;
+               pool = readdir(dir);
+               if (pool == NULL) {
                        rc = -errno;
-                       llapi_error(LLAPI_MSG_ERROR, rc,
-                                   "Error reading pool list for '%s'", name);
-                       goto free_path;
-               } else if ((rc == 0) && (cookie == NULL)) {
-                       /* end of directory */
-                       break;
+                       goto free_dir;
                }
 
                 /* ignore . and .. */
-                if (!strcmp(pool.d_name, ".") || !strcmp(pool.d_name, ".."))
+               if (!strcmp(pool->d_name, ".") || !strcmp(pool->d_name, ".."))
                         continue;
 
                 /* check output bounds */
@@ -1215,19 +1306,22 @@ int llapi_get_poollist(const char *name, char **poollist, int list_size,
                }
 
                 /* +2 for '.' and final '\0' */
-               if (used + strlen(pool.d_name) + strlen(fsname) + 2
+               if (used + strlen(pool->d_name) + strlen(fsname) + 2
                    > buffer_size) {
                        rc = -EOVERFLOW;
                        goto free_dir;
                }
 
-                sprintf(buffer + used, "%s.%s", fsname, pool.d_name);
+               sprintf(buffer + used, "%s.%s", fsname, pool->d_name);
                 poollist[nb_entries] = buffer + used;
-                used += strlen(pool.d_name) + strlen(fsname) + 2;
+               used += strlen(pool->d_name) + strlen(fsname) + 2;
                 nb_entries++;
-        }
+       } while (1);
 
 free_dir:
+       if (rc)
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "Error reading pool list for '%s'", name);
        closedir(dir);
 free_path:
        cfs_free_param_data(&pathname);
@@ -1739,23 +1833,23 @@ int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
 
 int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
 {
-        DIR *root;
-        int rc;
+       int root;
+       int rc;
 
-        root = opendir(mnt);
-        if (!root) {
-                rc = -errno;
-                llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
-                return rc;
-        }
+       root = open(mnt, O_RDONLY | O_DIRECTORY);
+       if (root < 0) {
+               rc = -errno;
+               llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+               return rc;
+       }
 
-        *count = is_mdt;
-        rc = ioctl(dirfd(root), LL_IOC_GETOBDCOUNT, count);
-        if (rc < 0)
-                rc = -errno;
+       *count = is_mdt;
+       rc = ioctl(root, LL_IOC_GETOBDCOUNT, count);
+       if (rc < 0)
+               rc = -errno;
 
-        closedir(root);
-        return rc;
+       close(root);
+       return rc;
 }
 
 /* Check if user specified value matches a real uuid.  Ignore _UUID,
@@ -1783,7 +1877,7 @@ int llapi_uuid_match(char *real_uuid, char *search_uuid)
 
 /* 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(DIR *dir, char *dname, struct find_param *param)
+static int setup_obd_uuid(int fd, char *dname, struct find_param *param)
 {
        struct obd_uuid obd_uuid;
        char buf[PATH_MAX];
@@ -1797,9 +1891,9 @@ static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
 
        /* Get the lov/lmv name */
        if (param->fp_get_lmv)
-               rc = llapi_file_fget_lmv_uuid(dirfd(dir), &obd_uuid);
+               rc = llapi_file_fget_lmv_uuid(fd, &obd_uuid);
        else
-               rc = llapi_file_fget_lov_uuid(dirfd(dir), &obd_uuid);
+               rc = llapi_file_fget_lov_uuid(fd, &obd_uuid);
        if (rc) {
                if (rc != -ENOTTY) {
                        llapi_error(LLAPI_MSG_ERROR, rc,
@@ -1986,17 +2080,17 @@ static int setup_target_indexes(DIR *dir, char *path, struct find_param *param)
 
 int llapi_ostlist(char *path, struct find_param *param)
 {
-        DIR *dir;
-        int ret;
+       int fd;
+       int ret;
 
-        dir = opendir(path);
-        if (dir == NULL)
-                return -errno;
+       fd = open(path, O_RDONLY | O_DIRECTORY);
+       if (fd < 0)
+               return -errno;
 
-        ret = setup_obd_uuid(dir, path, param);
-        closedir(dir);
+       ret = setup_obd_uuid(fd, path, param);
+       close(fd);
 
-        return ret;
+       return ret;
 }
 
 /*
@@ -2045,11 +2139,9 @@ static int sattr_get_defaults(const char *const fsname,
  * next time they are needed. Only a single filesystem's attributes are
  * cached at a time.
  */
-static int sattr_cache_get_defaults(const char *const fsname,
-                                    const char *const pathname,
-                                    unsigned int *scount,
-                                    unsigned int *ssize,
-                                    unsigned int *soffset)
+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];
@@ -2098,35 +2190,57 @@ static int sattr_cache_get_defaults(const char *const fsname,
         return 0;
 }
 
+enum lov_dump_flags {
+       LDF_IS_DIR      = 0x0001,
+       LDF_IS_RAW      = 0x0002,
+       LDF_INDENT      = 0x0004,
+       LDF_SKIP_OBJS   = 0x0008,
+       LDF_YAML        = 0x0010,
+};
+
 static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                                     struct lov_user_ost_data_v1 *objects,
-                                    int is_dir, int verbose, int depth,
-                                    int raw, char *pool_name)
+                                    int verbose, int depth, char *pool_name,
+                                    enum lov_dump_flags flags)
 {
+       bool is_dir = flags & LDF_IS_DIR;
+       bool is_raw = flags & LDF_IS_RAW;
+       bool indent = flags & LDF_INDENT;
+       bool yaml = flags & LDF_YAML;
+       bool skip_objs = flags & LDF_SKIP_OBJS;
        char *prefix = is_dir ? "" : "lmm_";
        char *separator = "";
+       char *space = indent ? "      " : "";
        int rc;
 
        if (is_dir && lmm_oi_seq(&lum->lmm_oi) == FID_SEQ_LOV_DEFAULT) {
                lmm_oi_set_seq(&lum->lmm_oi, 0);
-               if (verbose & VERBOSE_DETAIL)
-                       llapi_printf(LLAPI_MSG_NORMAL, "(Default) ");
+               if (!indent && (verbose & VERBOSE_DETAIL))
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s(Default) ", space);
        }
 
-       if (depth && path && ((verbose != VERBOSE_OBJID) || !is_dir))
+       if (!yaml && !indent && depth && path &&
+           ((verbose != VERBOSE_OBJID) || !is_dir))
                llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
 
        if ((verbose & VERBOSE_DETAIL) && !is_dir) {
-               llapi_printf(LLAPI_MSG_NORMAL, "lmm_magic:          0x%08X\n",
-                            lum->lmm_magic);
-               llapi_printf(LLAPI_MSG_NORMAL, "lmm_seq:            %#jx\n",
+               llapi_printf(LLAPI_MSG_NORMAL, "%s%smagic:         0x%08X\n",
+                            space, prefix, lum->lmm_magic);
+               llapi_printf(LLAPI_MSG_NORMAL, "%s%sseq:           %#jx\n",
+                            space, prefix,
                             (uintmax_t)lmm_oi_seq(&lum->lmm_oi));
-               llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_id:      %#jx\n",
+               llapi_printf(LLAPI_MSG_NORMAL, "%s%sobject_id:     %#jx\n",
+                            space, prefix,
                             (uintmax_t)lmm_oi_id(&lum->lmm_oi));
        }
        if ((verbose & (VERBOSE_DETAIL | VERBOSE_DFID)) && !is_dir) {
+               __u64 seq;
+               __u32 oid;
+               __u32 ver;
+
                if (verbose & ~VERBOSE_DFID)
-                       llapi_printf(LLAPI_MSG_NORMAL, "lmm_fid:            ");
+                       llapi_printf(LLAPI_MSG_NORMAL, "%slmm_fid:           ",
+                                    space);
                /* 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
@@ -2144,21 +2258,25 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                 * separate lmm_oi_seq() and lmm_oi_id() routines for this.
                 *
                 * For newer layout types hopefully this will be a real FID. */
-               llapi_printf(LLAPI_MSG_NORMAL, DFID"\n",
-                            lmm_oi_seq(&lum->lmm_oi) == 0 ?
-                               lmm_oi_id(&lum->lmm_oi) :
-                               lmm_oi_seq(&lum->lmm_oi),
-                            lmm_oi_seq(&lum->lmm_oi) == 0 ?
-                               0 : (__u32)lmm_oi_id(&lum->lmm_oi),
-                            (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32));
+               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 ?
+                       0 : (__u32)lmm_oi_id(&lum->lmm_oi);
+               ver = (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32);
+               if (yaml)
+                       llapi_printf(LLAPI_MSG_NORMAL, DFID_NOBRACE"\n",
+                                    seq, oid, ver);
+               else
+                       llapi_printf(LLAPI_MSG_NORMAL, DFID"\n",
+                                    seq, oid, ver);
        }
 
        if (verbose & VERBOSE_COUNT) {
                if (verbose & ~VERBOSE_COUNT)
-                       llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count:   ",
-                                    prefix);
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_count:  ",
+                                    space, prefix);
                if (is_dir) {
-                       if (!raw && lum->lmm_stripe_count == 0) {
+                       if (!is_raw && lum->lmm_stripe_count == 0) {
                                unsigned int scount;
                                rc = sattr_cache_get_defaults(NULL, path,
                                                              &scount, NULL,
@@ -2180,15 +2298,18 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                        llapi_printf(LLAPI_MSG_NORMAL, "%hd",
                                     (__s16)lum->lmm_stripe_count);
                }
-               separator = is_dir ? " " : "\n";
+               if (!yaml && is_dir)
+                       separator = " ";
+               else
+                       separator = "\n";
        }
 
        if (verbose & VERBOSE_SIZE) {
                llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
                if (verbose & ~VERBOSE_SIZE)
-                       llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size:    ",
-                                    prefix);
-               if (is_dir && !raw && lum->lmm_stripe_size == 0) {
+                       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);
@@ -2202,14 +2323,17 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                        llapi_printf(LLAPI_MSG_NORMAL, "%u",
                                     lum->lmm_stripe_size);
                }
-               separator = is_dir ? " " : "\n";
+               if (!yaml && is_dir)
+                       separator = " ";
+               else
+                       separator = "\n";
        }
 
        if ((verbose & VERBOSE_LAYOUT) && !is_dir) {
                llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
                if (verbose & ~VERBOSE_LAYOUT)
-                       llapi_printf(LLAPI_MSG_NORMAL, "%spattern:        ",
-                                    prefix);
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s%spattern:       ",
+                                    space, prefix);
                llapi_printf(LLAPI_MSG_NORMAL, "%.x", lum->lmm_pattern);
                separator = "\n";
        }
@@ -2217,8 +2341,8 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
        if ((verbose & VERBOSE_GENERATION) && !is_dir) {
                llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
                if (verbose & ~VERBOSE_GENERATION)
-                       llapi_printf(LLAPI_MSG_NORMAL, "%slayout_gen:     ",
-                                    prefix);
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s%slayout_gen:    ",
+                                    space, prefix);
                llapi_printf(LLAPI_MSG_NORMAL, "%u",
                             (int)lum->lmm_layout_gen);
                separator = "\n";
@@ -2227,9 +2351,9 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
        if (verbose & VERBOSE_OFFSET) {
                llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
                if (verbose & ~VERBOSE_OFFSET)
-                       llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset:  ",
-                                    prefix);
-               if (is_dir)
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_offset: ",
+                                    space, prefix);
+               if (is_dir || skip_objs)
                        llapi_printf(LLAPI_MSG_NORMAL, "%d",
                                     lum->lmm_stripe_offset ==
                                     (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
@@ -2237,52 +2361,92 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                else
                        llapi_printf(LLAPI_MSG_NORMAL, "%u",
                                     objects[0].l_ost_idx);
-               separator = is_dir ? " " : "\n";
+               if (!yaml && is_dir)
+                       separator = " ";
+               else
+                       separator = "\n";
        }
 
-       if ((verbose & VERBOSE_POOL) && (pool_name != NULL)) {
+       if ((verbose & VERBOSE_POOL) && pool_name && (pool_name[0] != '\0')) {
                llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
                if (verbose & ~VERBOSE_POOL)
-                       llapi_printf(LLAPI_MSG_NORMAL, "%spool:           ",
-                                    prefix);
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s%spool:          ",
+                                    space, prefix);
                llapi_printf(LLAPI_MSG_NORMAL, "%s", pool_name);
+               if (!yaml && is_dir)
+                       separator = " ";
+               else
+                       separator = "\n";
        }
 
-       if (!is_dir || (is_dir && (verbose != VERBOSE_OBJID)))
+       if (strlen(separator) != 0)
                llapi_printf(LLAPI_MSG_NORMAL, "\n");
 }
 
 void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
-                            struct lov_user_ost_data_v1 *objects,
-                            char *path, int is_dir, int obdindex,
-                            int depth, int header, int raw)
+                           struct lov_user_ost_data_v1 *objects,
+                           char *path, int obdindex, int depth,
+                           int header, enum lov_dump_flags flags)
 {
-        int i, obdstripe = (obdindex != OBD_NOT_FOUND) ? 0 : 1;
+       bool is_dir = flags & LDF_IS_DIR;
+       bool indent = flags & LDF_INDENT;
+       bool skip_objs = flags & LDF_SKIP_OBJS;
+       bool yaml = flags & LDF_YAML;
+       int i, obdstripe = (obdindex != OBD_NOT_FOUND) ? 0 : 1;
+
+       if (!obdstripe) {
+               for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
+                       if (obdindex == objects[i].l_ost_idx) {
+                               obdstripe = 1;
+                               break;
+                       }
+               }
+       }
 
-        if (!obdstripe) {
-                for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
-                        if (obdindex == objects[i].l_ost_idx) {
-                                obdstripe = 1;
-                                break;
-                        }
-                }
-        }
+       if (obdstripe == 0)
+               return;
 
-        if (obdstripe == 1)
-                lov_dump_user_lmm_header(lum, path, objects, is_dir, header,
-                                         depth, raw, pool_name);
+       lov_dump_user_lmm_header(lum, path, objects, header, depth, pool_name,
+                                flags);
 
-        if (!is_dir && (header & VERBOSE_OBJID) &&
+       if (!is_dir && !skip_objs && (header & VERBOSE_OBJID) &&
            !(lum->lmm_pattern & LOV_PATTERN_F_RELEASED)) {
-                if (obdstripe == 1)
-                        llapi_printf(LLAPI_MSG_NORMAL,
-                                  "\tobdidx\t\t objid\t\t objid\t\t group\n");
-
-                for (i = 0; i < lum->lmm_stripe_count; i++) {
-                        int idx = objects[i].l_ost_idx;
-                        long long oid = ostid_id(&objects[i].l_ost_oi);
-                        long long gr = ostid_seq(&objects[i].l_ost_oi);
-                       if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx)) {
+               char *space = "      - ";
+
+               if (indent)
+                       llapi_printf(LLAPI_MSG_NORMAL,
+                                    "%6slmm_objects:\n", " ");
+               else if (yaml)
+                       llapi_printf(LLAPI_MSG_NORMAL, "lmm_objects:\n");
+               else
+                       llapi_printf(LLAPI_MSG_NORMAL,
+                               "\tobdidx\t\t objid\t\t objid\t\t group\n");
+
+               for (i = 0; i < lum->lmm_stripe_count; i++) {
+                       int idx = objects[i].l_ost_idx;
+                       long long oid = ostid_id(&objects[i].l_ost_oi);
+                       long long gr = ostid_seq(&objects[i].l_ost_oi);
+
+                       if (obdindex != OBD_NOT_FOUND && obdindex != idx)
+                               continue;
+
+                       if (yaml) {
+                               struct lu_fid fid = { 0 };
+
+                               ostid_to_fid(&fid, &objects[i].l_ost_oi, idx);
+                               llapi_printf(LLAPI_MSG_NORMAL,
+                                   "%sl_ost_idx: %d\n", space, idx);
+                               llapi_printf(LLAPI_MSG_NORMAL,
+                                   "%8sl_fid:     "DFID_NOBRACE"\n",
+                                   " ", PFID(&fid));
+                       } else if (indent) {
+                               struct lu_fid fid = { 0 };
+
+                               ostid_to_fid(&fid, &objects[i].l_ost_oi, idx);
+                               llapi_printf(LLAPI_MSG_NORMAL,
+                                   "%s%d: { l_ost_idx: %d, l_fid: "DFID" }\n",
+                                   space, i, idx, PFID(&fid));
+                       } else {
                                char fmt[48];
                                sprintf(fmt, "%s%s%s\n",
                                        "\t%6u\t%14llu\t%#13llx\t",
@@ -2293,19 +2457,20 @@ void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
                                             oid, gr,
                                             obdindex == idx ? " *" : "");
                        }
-
-                }
-                llapi_printf(LLAPI_MSG_NORMAL, "\n");
-        }
+               }
+               llapi_printf(LLAPI_MSG_NORMAL, "\n");
+       }
 }
 
 void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
-                      char *path, int obdindex, int depth, int verbose)
+                      char *path, int obdindex, int depth, int verbose,
+                      enum lov_dump_flags flags)
 {
        struct lmv_user_mds_data *objects = lum->lum_objects;
        char *prefix = lum->lum_magic == LMV_USER_MAGIC ? "(Default)" : "";
        int i, obdstripe = 0;
        char *separator = "";
+       bool yaml = flags & LDF_YAML;
 
        if (obdindex != OBD_NOT_FOUND) {
                if (lum->lum_stripe_count == 0) {
@@ -2332,7 +2497,8 @@ void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
        /* show all information default */
        if (!verbose) {
                if (lum->lum_magic == LMV_USER_MAGIC)
-                       verbose = VERBOSE_POOL | VERBOSE_COUNT | VERBOSE_OFFSET;
+                       verbose = VERBOSE_POOL | VERBOSE_COUNT |
+                                 VERBOSE_OFFSET | VERBOSE_HASH_TYPE;
                else
                        verbose = VERBOSE_OBJID;
        }
@@ -2346,7 +2512,7 @@ void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
                        llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_count: ");
                llapi_printf(LLAPI_MSG_NORMAL, "%u",
                             (int)lum->lum_stripe_count);
-               if (verbose & VERBOSE_OFFSET)
+               if ((verbose & VERBOSE_OFFSET) && !yaml)
                        separator = " ";
                else
                        separator = "\n";
@@ -2358,6 +2524,24 @@ void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
                        llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_offset: ");
                llapi_printf(LLAPI_MSG_NORMAL, "%d",
                             (int)lum->lum_stripe_offset);
+               if (verbose & VERBOSE_HASH_TYPE && !yaml)
+                       separator = " ";
+               else
+                       separator = "\n";
+       }
+
+       if (verbose & VERBOSE_HASH_TYPE) {
+               unsigned int type = lum->lum_hash_type;
+
+               llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+               if (verbose & ~VERBOSE_HASH_TYPE)
+                       llapi_printf(LLAPI_MSG_NORMAL, "lmv_hash_type: ");
+               if (type < LMV_HASH_TYPE_MAX)
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s",
+                                    mdt_hash_name[type]);
+               else
+                       llapi_printf(LLAPI_MSG_NORMAL, "%d",
+                                    (int)type);
                separator = "\n";
        }
 
@@ -2392,129 +2576,147 @@ void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
                llapi_printf(LLAPI_MSG_NORMAL, "\n");
 }
 
-void llapi_lov_dump_user_lmm(struct find_param *param, char *path, int is_dir)
+static void lov_dump_comp_v1_header(struct find_param *param, char *path,
+                                   enum lov_dump_flags flags)
 {
-       __u32 magic;
-
-       if (param->fp_get_lmv || param->fp_get_default_lmv)
-               magic = (__u32)param->fp_lmv_md->lum_magic;
-       else
-               magic = *(__u32 *)&param->fp_lmd->lmd_lmm; /* lum->lmm_magic */
+       struct lov_comp_md_v1 *comp_v1 = (void *)&param->fp_lmd->lmd_lmm;
+       int depth = param->fp_max_depth;
+       int verbose = param->fp_verbose;
+       bool yaml = flags & LDF_YAML;
 
-       switch (magic) {
-        case LOV_USER_MAGIC_V1:
-               lov_dump_user_lmm_v1v3(&param->fp_lmd->lmd_lmm, NULL,
-                                      param->fp_lmd->lmd_lmm.lmm_objects,
-                                      path, is_dir,
-                                      param->fp_obd_index, param->fp_max_depth,
-                                      param->fp_verbose, param->fp_raw);
-                break;
-        case LOV_USER_MAGIC_V3: {
-                char pool_name[LOV_MAXPOOLNAME + 1];
-                struct lov_user_ost_data_v1 *objects;
-               struct lov_user_md_v3 *lmmv3 = (void *)&param->fp_lmd->lmd_lmm;
+       if (depth && path && ((verbose != VERBOSE_OBJID) ||
+                             !(flags & LDF_IS_DIR)) && !yaml)
+               llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
 
-               strlcpy(pool_name, lmmv3->lmm_pool_name, sizeof(pool_name));
-               objects = lmmv3->lmm_objects;
-               lov_dump_user_lmm_v1v3(&param->fp_lmd->lmd_lmm,
-                                      pool_name[0] == '\0' ? NULL : pool_name,
-                                      objects, path, is_dir,
-                                      param->fp_obd_index, param->fp_max_depth,
-                                      param->fp_verbose, param->fp_raw);
-                break;
-        }
-       case LMV_MAGIC_V1:
-       case LMV_USER_MAGIC: {
-               char pool_name[LOV_MAXPOOLNAME + 1];
-               struct lmv_user_md *lum;
+       if (verbose & VERBOSE_DETAIL) {
+               llapi_printf(LLAPI_MSG_NORMAL, "composite_header:\n");
+               llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_magic:       0x%08X\n",
+                            " ", comp_v1->lcm_magic);
+               llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_size:        %u\n",
+                            " ", comp_v1->lcm_size);
+               llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_flags:       %u\n",
+                            " ", comp_v1->lcm_flags);
+       }
 
-               lum = (struct lmv_user_md *)param->fp_lmv_md;
-               strlcpy(pool_name, lum->lum_pool_name, sizeof(pool_name));
-               lmv_dump_user_lmm(lum,
-                                 pool_name[0] == '\0' ? NULL : pool_name,
-                                 path, param->fp_obd_index,
-                                 param->fp_max_depth, param->fp_verbose);
-               break;
+       if (verbose & VERBOSE_GENERATION) {
+               if (verbose & ~VERBOSE_GENERATION)
+                       llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_layout_gen:  ",
+                                    " ");
+               llapi_printf(LLAPI_MSG_NORMAL, "%u\n", comp_v1->lcm_layout_gen);
        }
-       default:
-               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);
-               return;
+
+       if (verbose & VERBOSE_COMP_COUNT) {
+               if (verbose & ~VERBOSE_COMP_COUNT)
+                       llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_entry_count: ",
+                                    " ");
+               llapi_printf(LLAPI_MSG_NORMAL, "%u\n",
+                            comp_v1->lcm_magic == LOV_USER_MAGIC_COMP_V1 ?
+                            comp_v1->lcm_entry_count : 0);
        }
+
+       if (verbose & VERBOSE_DETAIL && !yaml)
+               llapi_printf(LLAPI_MSG_NORMAL, "components:\n");
 }
 
-int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
+static void comp_flags2str(__u32 comp_flags)
 {
-       const char *fname;
-       char *dname;
-       int fd, rc = 0;
-
-       fname = strrchr(path, '/');
+       bool found = false;
+       int i = 0;
 
-       /* It should be a file (or other non-directory) */
-       if (fname == NULL) {
-               dname = (char *)malloc(2);
-               if (dname == NULL)
-                       return -ENOMEM;
-               strcpy(dname, ".");
-               fname = (char *)path;
-       } else {
-               dname = (char *)malloc(fname - path + 1);
-               if (dname == NULL)
-                       return -ENOMEM;
-               strncpy(dname, path, fname - path);
-               dname[fname - path] = '\0';
-               fname++;
+       if (!comp_flags) {
+               llapi_printf(LLAPI_MSG_NORMAL, "0");
+               return;
        }
-
-       fd = open(dname, O_RDONLY | O_NONBLOCK);
-       if (fd == -1) {
-               rc = -errno;
-               free(dname);
-               return rc;
+       for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
+               if (comp_flags & comp_flags_table[i].cfn_flag) {
+                       if (found)
+                               llapi_printf(LLAPI_MSG_NORMAL, ",");
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s",
+                                    comp_flags_table[i].cfn_name);
+                       comp_flags &= ~comp_flags_table[i].cfn_flag;
+                       found = true;
+               }
        }
+       if (comp_flags) {
+               if (found)
+                       llapi_printf(LLAPI_MSG_NORMAL, ",");
+               llapi_printf(LLAPI_MSG_NORMAL, "%#x", comp_flags);
+       }
+}
 
-       strcpy((char *)lum, fname);
-       if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
-               rc = -errno;
+static void lov_dump_comp_v1_entry(struct find_param *param,
+                                  enum lov_dump_flags flags, int index)
+{
+       struct lov_comp_md_v1 *comp_v1 = (void *)&param->fp_lmd->lmd_lmm;
+       struct lov_comp_md_entry_v1 *entry;
+       char *separator = "";
+       int verbose = param->fp_verbose;
+       bool yaml = flags & LDF_YAML;
 
-       if (close(fd) == -1 && rc == 0)
-               rc = -errno;
+       entry = &comp_v1->lcm_entries[index];
 
-       free(dname);
-       return rc;
-}
+       if (yaml)
+               llapi_printf(LLAPI_MSG_NORMAL, "%2scomponent%d:\n", " ", index);
 
-int llapi_file_lookup(int dirfd, const char *name)
-{
-        struct obd_ioctl_data data = { 0 };
-        char rawbuf[8192];
-        char *buf = rawbuf;
-        int rc;
+       if (verbose & VERBOSE_COMP_ID) {
+               if (verbose & VERBOSE_DETAIL && !yaml)
+                       llapi_printf(LLAPI_MSG_NORMAL,
+                                    "%slcme_id:             ", "  - ");
+               else if (verbose & ~VERBOSE_COMP_ID)
+                       llapi_printf(LLAPI_MSG_NORMAL,
+                                    "%4slcme_id:             ", " ");
+               if (entry->lcme_id != LCME_ID_INVAL)
+                       llapi_printf(LLAPI_MSG_NORMAL, "%u", entry->lcme_id);
+               else
+                       llapi_printf(LLAPI_MSG_NORMAL, "N/A");
+               separator = "\n";
+       }
 
-        if (dirfd < 0 || name == NULL)
-                return -EINVAL;
+       if (verbose & VERBOSE_COMP_FLAGS) {
+               llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+               if (verbose & ~VERBOSE_COMP_FLAGS)
+                       llapi_printf(LLAPI_MSG_NORMAL,
+                                    "%4slcme_flags:          ", " ");
+               comp_flags2str(entry->lcme_flags);
+               separator = "\n";
+       }
 
-        data.ioc_version = OBD_IOCTL_VERSION;
-        data.ioc_len = sizeof(data);
-        data.ioc_inlbuf1 = (char *)name;
-        data.ioc_inllen1 = strlen(name) + 1;
+       if (verbose & VERBOSE_COMP_START) {
+               llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+               if (verbose & ~VERBOSE_COMP_START)
+                       llapi_printf(LLAPI_MSG_NORMAL,
+                                    "%4slcme_extent.e_start: ", " ");
+               llapi_printf(LLAPI_MSG_NORMAL, "%llu",
+                            entry->lcme_extent.e_start);
+               separator = "\n";
+       }
 
-        rc = obd_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 (verbose & VERBOSE_COMP_END) {
+               llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+               if (verbose & ~VERBOSE_COMP_END)
+                       llapi_printf(LLAPI_MSG_NORMAL,
+                                    "%4slcme_extent.e_end:   ", " ");
+               if (entry->lcme_extent.e_end == LUSTRE_EOF)
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s", "EOF");
+               else
+                       llapi_printf(LLAPI_MSG_NORMAL, "%llu",
+                                       entry->lcme_extent.e_end);
+               separator = "\n";
+       }
 
-        rc = ioctl(dirfd, IOC_MDC_LOOKUP, buf);
-        if (rc < 0)
-                rc = -errno;
-        return rc;
+       if (yaml) {
+               llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+               llapi_printf(LLAPI_MSG_NORMAL, "%4ssub_layout:\n", " ");
+       } else if (verbose & VERBOSE_DETAIL) {
+               llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+               llapi_printf(LLAPI_MSG_NORMAL, "%4slcme_offset:         %u\n",
+                            " ", entry->lcme_offset);
+               llapi_printf(LLAPI_MSG_NORMAL, "%4slcme_size:           %u\n",
+                            " ", entry->lcme_size);
+               llapi_printf(LLAPI_MSG_NORMAL, "%4ssub_layout:\n", " ");
+       } else {
+               llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+       }
 }
 
 /* Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
@@ -2537,36 +2739,485 @@ int llapi_file_lookup(int dirfd, const char *name)
  * Note: 5th actually means that the value is within the interval
  * (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)
+                         int sign, int negopt, unsigned long long margin,
+                         int mds)
 {
-        int ret = -1;
-
-        if (sign > 0) {
-                /* Drop the fraction of margin (of days). */
-                if (file + margin <= limit)
-                        ret = mds ? 0 : 1;
-        } else if (sign == 0) {
-                if (file <= limit && file + margin > limit)
-                        ret = mds ? 0 : 1;
-                else if (file + margin <= limit)
-                        ret = mds ? 0 : -1;
-        } else if (sign < 0) {
-                if (file > limit)
-                        ret = 1;
-                else if (mds)
-                        ret = 0;
-        }
+       int ret = -1;
+
+       if (sign > 0) {
+               /* Drop the fraction of margin (of days). */
+               if (file + margin <= limit)
+                       ret = mds ? 0 : 1;
+       } else if (sign == 0) {
+               if (file <= limit && file + margin > limit)
+                       ret = mds ? 0 : 1;
+               else if (file + margin <= limit)
+                       ret = mds ? 0 : -1;
+       } else if (sign < 0) {
+               if (file > limit)
+                       ret = 1;
+               else if (mds)
+                       ret = 0;
+       }
 
-        return negopt ? ~ret + 1 : ret;
+       return negopt ? ~ret + 1 : ret;
 }
 
-/* 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
+static inline struct lov_user_md *
+lov_comp_entry(struct lov_comp_md_v1 *comp_v1, int ent_idx)
+{
+       return (struct lov_user_md *)((char *)comp_v1 +
+                       comp_v1->lcm_entries[ent_idx].lcme_offset);
+}
+
+static inline struct lov_user_ost_data_v1 *
+lov_v1v3_objects(struct lov_user_md *v1)
+{
+       if (v1->lmm_magic == LOV_USER_MAGIC_V3)
+               return ((struct lov_user_md_v3 *)v1)->lmm_objects;
+       else
+               return v1->lmm_objects;
+}
+
+static inline void
+lov_v1v3_pool_name(struct lov_user_md *v1, char *pool_name)
+{
+       if (v1->lmm_magic == LOV_USER_MAGIC_V3)
+               strlcpy(pool_name, ((struct lov_user_md_v3 *)v1)->lmm_pool_name,
+                       LOV_MAXPOOLNAME);
+       else
+               pool_name[0] = '\0';
+}
+
+static inline bool
+print_last_init_comp(struct find_param *param)
+{
+       /* print all component info */
+       if ((param->fp_verbose & VERBOSE_DEFAULT) == VERBOSE_DEFAULT)
+               return false;
+
+       /* print specific component info */
+       if (param->fp_check_comp_id || param->fp_check_comp_flags ||
+           param->fp_check_comp_start || param->fp_check_comp_end)
+               return false;
+
+       return true;
+}
+
+static int find_comp_end_cmp(unsigned long long end, struct find_param *param)
+{
+       int match;
+
+       if (param->fp_comp_end == LUSTRE_EOF) {
+               if (param->fp_comp_end_sign == 0) /* equal to EOF */
+                       match = end == LUSTRE_EOF ? 1 : -1;
+               else if (param->fp_comp_end_sign > 0) /* at most EOF */
+                       match = end == LUSTRE_EOF ? -1 : 1;
+               else /* at least EOF */
+                       match = -1;
+               if (param->fp_exclude_comp_end)
+                       match = ~match + 1;
+       } else {
+               unsigned long long margin;
+
+               margin = end == LUSTRE_EOF ? 0 : param->fp_comp_end_units;
+               match = find_value_cmp(end, param->fp_comp_end,
+                                      param->fp_comp_end_sign,
+                                      param->fp_exclude_comp_end, margin, 0);
+       }
+
+       return match;
+}
+
+/**
+ * An example of "getstripe -v" for a two components PFL file:
+ *
+ * composite_header:
+ * lcm_magic:       0x0BD60BD0
+ * lcm_size:        264
+ * lcm_flags:       0
+ * lcm_layout_gen:  2
+ * lcm_entry_count: 2
+ * components:
+ * - lcme_id:             1
+ *   lcme_flags:          0x10
+ *   lcme_extent.e_start: 0
+ *   lcme_extent.e_end:   1048576
+ *   lcme_offset:         128
+ *   lcme_size:           56
+ *   sub_layout:
+ *     lmm_magic:         0x0BD10BD0
+ *     lmm_seq:           0x200000401
+ *     lmm_object_id:     0x1
+ *     lmm_fid:           [0x200000401:0x1:0x0]
+ *     lmm_stripe_count:  1
+ *     lmm_stripe_size:   1048576
+ *     lmm_pattern:       1
+ *     lmm_layout_gen:    0
+ *     lmm_stripe_offset: 0
+ *     lmm_objects:
+ *     - 0: { l_ost_idx: 0, l_fid: [0x100000000:0x2:0x0] }
+ *
+ * - lcme_id:             2
+ *   lcme_flags:          0x10
+ *   lcme_extent.e_start: 1048576
+ *   lcme_extent.e_end:   EOF
+ *   lcme_offset:         184
+ *   lcme_size:           80
+ *     sub_layout:
+ *     lmm_magic:         0x0BD10BD0
+ *     lmm_seq:           0x200000401
+ *     lmm_object_id:     0x1
+ *     lmm_fid:           [0x200000401:0x1:0x0]
+ *     lmm_stripe_count:  2
+ *     lmm_stripe_size:   1048576
+ *     lmm_pattern:       1
+ *     lmm_layout_gen:    0
+ *     lmm_stripe_offset: 1
+ *     lmm_objects:
+ *     - 0: { l_ost_idx: 1, l_fid: [0x100010000:0x2:0x0] }
+ *     - 1: { l_ost_idx: 0, l_fid: [0x100000000:0x3:0x0] }
+ */
+static void lov_dump_comp_v1(struct find_param *param, char *path,
+                            enum lov_dump_flags flags)
+{
+       struct lov_comp_md_entry_v1 *entry;
+       struct lov_user_ost_data_v1 *objects;
+       struct lov_comp_md_v1 *comp_v1 = (void *)&param->fp_lmd->lmd_lmm;
+       struct lov_user_md_v1 *v1;
+       char pool_name[LOV_MAXPOOLNAME + 1];
+       int obdindex = param->fp_obd_index;
+       int i, j, match, obdstripe = 0;
+
+       if (obdindex != OBD_NOT_FOUND) {
+               for (i = 0; !(flags & LDF_IS_DIR) &&
+                           i < comp_v1->lcm_entry_count; i++) {
+                       if (!(comp_v1->lcm_entries[i].lcme_flags &
+                             LCME_FL_INIT))
+                               continue;
+
+                       v1 = lov_comp_entry(comp_v1, i);
+                       objects = lov_v1v3_objects(v1);
+
+                       for (j = 0; j < v1->lmm_stripe_count; j++) {
+                               if (obdindex == objects[j].l_ost_idx) {
+                                       obdstripe = 1;
+                                       break;
+                               }
+                       }
+               }
+       } else {
+               obdstripe = 1;
+       }
+
+       if (obdstripe == 0)
+               return;
+
+       lov_dump_comp_v1_header(param, path, flags);
+
+       flags |= LDF_INDENT;
+
+       for (i = 0; i < comp_v1->lcm_entry_count; i++) {
+               entry = &comp_v1->lcm_entries[i];
+
+               if (param->fp_check_comp_flags) {
+                       if ((param->fp_exclude_comp_flags &&
+                            (param->fp_comp_flags & entry->lcme_flags)) ||
+                           (!param->fp_exclude_comp_flags &&
+                            !(param->fp_comp_flags & entry->lcme_flags)))
+                               continue;
+               }
+
+               if (param->fp_check_comp_id &&
+                   param->fp_comp_id != entry->lcme_id)
+                       continue;
+
+               if (param->fp_check_comp_start) {
+                       match = find_value_cmp(entry->lcme_extent.e_start,
+                                              param->fp_comp_start,
+                                              param->fp_comp_start_sign,
+                                              0,
+                                              param->fp_comp_start_units, 0);
+                       if (match == -1)
+                               continue;
+               }
+
+               if (param->fp_check_comp_end) {
+                       match = find_comp_end_cmp(entry->lcme_extent.e_end,
+                                                 param);
+                       if (match == -1)
+                               continue;
+               }
+
+               if (print_last_init_comp(param)) {
+                       /**
+                        * if part of stripe info is needed, we'd print only
+                        * the last instantiated component info.
+                        */
+                       if (entry->lcme_flags & LCME_FL_INIT)
+                               continue;
+                       else
+                               break;
+               }
+
+               if (entry->lcme_flags & LCME_FL_INIT)
+                       flags &= ~LDF_SKIP_OBJS;
+               else
+                       flags |= LDF_SKIP_OBJS;
+
+               lov_dump_comp_v1_entry(param, flags, i);
+
+               v1 = lov_comp_entry(comp_v1, i);
+               objects = lov_v1v3_objects(v1);
+               lov_v1v3_pool_name(v1, pool_name);
+
+               lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
+                                      param->fp_max_depth, param->fp_verbose,
+                                      flags);
+       }
+       if (print_last_init_comp(param)) {
+               /**
+                * directory layout contains only layout template, print the
+                * last component.
+                */
+               if (i == 0)
+                       i = comp_v1->lcm_entry_count - 1;
+               else
+                       i--;
+               flags &= ~LDF_SKIP_OBJS;
+
+               lov_dump_comp_v1_entry(param, flags, i);
+
+               v1 = lov_comp_entry(comp_v1, i);
+               objects = lov_v1v3_objects(v1);
+               lov_v1v3_pool_name(v1, pool_name);
+
+               lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
+                                      param->fp_max_depth, param->fp_verbose,
+                                      flags);
+       }
+}
+
+#define VERBOSE_COMP_OPTS      (VERBOSE_COMP_COUNT | VERBOSE_COMP_ID | \
+                                VERBOSE_COMP_START | VERBOSE_COMP_END | \
+                                VERBOSE_COMP_FLAGS)
+
+static inline bool has_any_comp_options(struct find_param *param)
+{
+       int verbose = param->fp_verbose;
+
+       if (param->fp_check_comp_id || param->fp_check_comp_count ||
+           param->fp_check_comp_start || param->fp_check_comp_end ||
+           param->fp_check_comp_flags)
+               return true;
+
+       /* show full layout information, not component specific */
+       if ((verbose & ~VERBOSE_DETAIL) == VERBOSE_DEFAULT)
+               return false;
+
+       return verbose & VERBOSE_COMP_OPTS;
+}
+
+struct lov_user_mds_data *lov_forge_comp_v1(struct lov_user_mds_data *orig,
+                                           bool is_dir)
+{
+       struct lov_user_md *lum = &orig->lmd_lmm;
+       struct lov_user_mds_data *new;
+       struct lov_comp_md_v1 *comp_v1;
+       struct lov_comp_md_entry_v1 *ent;
+       int lum_off = sizeof(*comp_v1) + sizeof(*ent);
+       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);
+       if (new == NULL) {
+               llapi_printf(LLAPI_MSG_NORMAL, "out of memory\n");
+               return new;
+       }
+
+       memcpy(new, orig, sizeof(lstat_t));
+
+       comp_v1 = (struct lov_comp_md_v1 *)&new->lmd_lmm;
+       comp_v1->lcm_magic = lum->lmm_magic;
+       comp_v1->lcm_size = lum_off + lum_size;
+       comp_v1->lcm_layout_gen = is_dir ? 0 : lum->lmm_layout_gen;
+       comp_v1->lcm_flags = 0;
+       comp_v1->lcm_entry_count = 1;
+
+       ent = &comp_v1->lcm_entries[0];
+       ent->lcme_id = 0;
+       ent->lcme_flags = is_dir ? 0 : LCME_FL_INIT;
+       ent->lcme_extent.e_start = 0;
+       ent->lcme_extent.e_end = LUSTRE_EOF;
+       ent->lcme_offset = lum_off;
+       ent->lcme_size = lum_size;
+
+       memcpy((char *)comp_v1 + lum_off, lum, lum_size);
+
+       return new;
+}
+
+static void lov_dump_plain_user_lmm(struct find_param *param, char *path,
+                                   enum lov_dump_flags flags)
+{
+       __u32 magic = *(__u32 *)&param->fp_lmd->lmd_lmm;
+
+       if (has_any_comp_options(param)) {
+               struct lov_user_mds_data *new_lmd, *orig_lmd;
+
+               orig_lmd = param->fp_lmd;
+               new_lmd = lov_forge_comp_v1(orig_lmd, flags & LDF_IS_DIR);
+               if (new_lmd != NULL) {
+                       param->fp_lmd = new_lmd;
+                       lov_dump_comp_v1(param, path, flags);
+                       param->fp_lmd = orig_lmd;
+                       free(new_lmd);
+               }
+               return;
+       }
+
+       if (magic == LOV_USER_MAGIC_V1) {
+               lov_dump_user_lmm_v1v3(&param->fp_lmd->lmd_lmm, NULL,
+                                      param->fp_lmd->lmd_lmm.lmm_objects,
+                                      path, param->fp_obd_index,
+                                      param->fp_max_depth, param->fp_verbose,
+                                      flags);
+       } else {
+               char pool_name[LOV_MAXPOOLNAME + 1];
+               struct lov_user_ost_data_v1 *objects;
+               struct lov_user_md_v3 *lmmv3 = (void *)&param->fp_lmd->lmd_lmm;
+
+               strlcpy(pool_name, lmmv3->lmm_pool_name, sizeof(pool_name));
+               objects = lmmv3->lmm_objects;
+               lov_dump_user_lmm_v1v3(&param->fp_lmd->lmd_lmm, pool_name,
+                                      objects, path, param->fp_obd_index,
+                                      param->fp_max_depth, param->fp_verbose,
+                                      flags);
+       }
+}
+
+static void llapi_lov_dump_user_lmm(struct find_param *param, char *path,
+                                   enum lov_dump_flags flags)
+{
+       __u32 magic;
+
+       if (param->fp_get_lmv || param->fp_get_default_lmv)
+               magic = (__u32)param->fp_lmv_md->lum_magic;
+       else
+               magic = *(__u32 *)&param->fp_lmd->lmd_lmm; /* lum->lmm_magic */
+
+       if (param->fp_raw)
+               flags |= LDF_IS_RAW;
+       if (param->fp_yaml)
+               flags |= LDF_YAML;
+
+       switch (magic) {
+       case LOV_USER_MAGIC_V1:
+       case LOV_USER_MAGIC_V3:
+               lov_dump_plain_user_lmm(param, path, flags);
+               break;
+       case LMV_MAGIC_V1:
+       case LMV_USER_MAGIC: {
+               char pool_name[LOV_MAXPOOLNAME + 1];
+               struct lmv_user_md *lum;
+
+               lum = (struct lmv_user_md *)param->fp_lmv_md;
+               strlcpy(pool_name, lum->lum_pool_name, sizeof(pool_name));
+               lmv_dump_user_lmm(lum, pool_name, path, param->fp_obd_index,
+                                 param->fp_max_depth, param->fp_verbose,
+                                 flags);
+               break;
+       }
+       case LOV_USER_MAGIC_COMP_V1:
+               lov_dump_comp_v1(param, path, flags);
+               break;
+       default:
+               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);
+               return;
+       }
+}
+
+int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
+{
+       const char *fname;
+       char *dname;
+       int fd, rc = 0;
+
+       fname = strrchr(path, '/');
+
+       /* It should be a file (or other non-directory) */
+       if (fname == NULL) {
+               dname = (char *)malloc(2);
+               if (dname == NULL)
+                       return -ENOMEM;
+               strcpy(dname, ".");
+               fname = (char *)path;
+       } else {
+               dname = (char *)malloc(fname - path + 1);
+               if (dname == NULL)
+                       return -ENOMEM;
+               strncpy(dname, path, fname - path);
+               dname[fname - path] = '\0';
+               fname++;
+       }
+
+       fd = open(dname, O_RDONLY | O_NONBLOCK);
+       if (fd == -1) {
+               rc = -errno;
+               free(dname);
+               return rc;
+       }
+
+       strcpy((char *)lum, fname);
+       if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
+               rc = -errno;
+
+       if (close(fd) == -1 && rc == 0)
+               rc = -errno;
+
+       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;
+
+        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;
+
+        rc = obd_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;
+        }
+
+        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).
+ * 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)
 {
@@ -2619,9 +3270,11 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds)
  */
 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_ost_data_v1 *lmm_objects;
-       int i, j;
+       int i, j, k, count = 1;
 
        if (param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND)
                return 0;
@@ -2631,37 +3284,27 @@ static int check_obd_match(struct find_param *param)
 
        /* Only those files should be accepted, which have a
         * stripe on the specified OST. */
-       if (!param->fp_lmd->lmd_lmm.lmm_stripe_count)
-               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;
+       }
 
-       if (param->fp_lmd->lmd_lmm.lmm_magic ==
-           LOV_USER_MAGIC_V3) {
-               struct lov_user_md_v3 *lmmv3 = (void *)&param->fp_lmd->lmd_lmm;
+       for (i = 0; i < count; i++) {
+               if (comp_v1)
+                       v1 = lov_comp_entry(comp_v1, i);
 
-               lmm_objects = lmmv3->lmm_objects;
-       } else if (param->fp_lmd->lmd_lmm.lmm_magic ==  LOV_USER_MAGIC_V1) {
-               lmm_objects = param->fp_lmd->lmd_lmm.lmm_objects;
-       } else {
-               llapi_err_noerrno(LLAPI_MSG_ERROR, "%s:Unknown magic: 0x%08X\n",
-                                 __func__, param->fp_lmd->lmd_lmm.lmm_magic);
-               return -EINVAL;
-       }
+               objects = lov_v1v3_objects(v1);
 
-       for (i = 0; i < param->fp_lmd->lmd_lmm.lmm_stripe_count; i++) {
-               for (j = 0; j < param->fp_num_obds; j++) {
-                       if (param->fp_obd_indexes[j] ==
-                           lmm_objects[i].l_ost_idx) {
-                               if (param->fp_exclude_obd)
-                                       return 0;
-                               return 1;
+               for (j = 0; j < v1->lmm_stripe_count; j++) {
+                       for (k = 0; k < param->fp_num_obds; k++) {
+                               if (param->fp_obd_indexes[k] ==
+                                   objects[j].l_ost_idx)
+                                       return !param->fp_exclude_obd;
                        }
                }
        }
 
-       if (param->fp_exclude_obd)
-                return 1;
-
-       return 0;
+       return param->fp_exclude_obd;
 }
 
 static int check_mdt_match(struct find_param *param)
@@ -2680,51 +3323,286 @@ static int check_mdt_match(struct find_param *param)
        if (param->fp_exclude_mdt)
                return 1;
 
-       return 0;
+       return 0;
+}
+
+/**
+ * Check whether the obd is active or not, if it is
+ * not active, just print the object affected by this
+ * failed target
+ **/
+static int 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;
+
+        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));
+       }
+
+       return ret;
+}
+
+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;
+       int ret, i, count = 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)
+                       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 */
+               if (ret != -1)
+                       break;
+       }
+
+       return ret;
+}
+
+static __u32 find_get_stripe_count(struct find_param *param)
+{
+       struct lov_comp_md_v1 *comp_v1 = NULL;
+       struct lov_user_md_v1 *v1 = &param->fp_lmd->lmd_lmm;
+       int i, count = 1;
+       __u32 stripe_count = 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)
+                       v1 = lov_comp_entry(comp_v1, i);
+               stripe_count += v1->lmm_stripe_count;
+       }
+
+       return stripe_count;
+}
+
+#define LOV_PATTERN_INVALID    0xFFFFFFFF
+
+static int find_check_layout(struct find_param *param)
+{
+       struct lov_comp_md_v1 *comp_v1 = NULL;
+       struct lov_user_md_v1 *v1 = &param->fp_lmd->lmd_lmm;
+       int i, count = 1;
+       bool found = false, valid = false;
+
+       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)
+                       v1 = lov_comp_entry(comp_v1, i);
+
+               if (v1->lmm_pattern == LOV_PATTERN_INVALID)
+                       continue;
+
+               valid = true;
+               if (v1->lmm_pattern & param->fp_layout) {
+                       found = true;
+                       break;
+               }
+       }
+
+       if (!valid)
+               return -1;
+
+       if ((found && !param->fp_exclude_layout) ||
+           (!found && param->fp_exclude_layout))
+               return 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;
+       int i, count = 1;
+       bool found = false;
+
+       if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
+               comp_v1 = (struct lov_comp_md_v1 *)v1;
+               count = comp_v1->lcm_entry_count;
+               /* empty requested pool is taken as no pool search */
+               if (count == 0 && param->fp_poolname[0] == '\0')
+                       found = true;
+       }
+
+       for (i = 0; i < count; i++) {
+               if (comp_v1 != NULL)
+                       v1 = lov_comp_entry(comp_v1, i);
+
+               if (((v1->lmm_magic == LOV_USER_MAGIC_V1) &&
+                    (param->fp_poolname[0] == '\0')) ||
+                   ((v1->lmm_magic == LOV_USER_MAGIC_V3) &&
+                    (strncmp(v3->lmm_pool_name,
+                             param->fp_poolname, LOV_MAXPOOLNAME) == 0)) ||
+                   ((v1->lmm_magic == LOV_USER_MAGIC_V3) &&
+                    (strcmp(param->fp_poolname, "*") == 0))) {
+                       found = true;
+                       break;
+               }
+       }
+
+       if ((found && !param->fp_exclude_pool) ||
+           (!found && param->fp_exclude_pool))
+               return 1;
+
+       return -1;
+}
+
+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_comp_md_entry_v1 *entry;
+       int i, ret = 0;
+
+       if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
+               comp_v1 = (struct lov_comp_md_v1 *)v1;
+       } else {
+               forged_v1 = malloc(sizeof(*forged_v1) + sizeof(*entry));
+               if (forged_v1 == NULL)
+                       return -1;
+               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_extent.e_start = 0;
+               entry->lcme_extent.e_end = LUSTRE_EOF;
+       }
+
+       /* invalid case, don't match for any kind of search. */
+       if (comp_v1->lcm_entry_count == 0) {
+               ret = -1;
+               goto out;
+       }
+
+       if (param->fp_check_comp_count) {
+               ret = find_value_cmp(forged_v1 ? 0 : comp_v1->lcm_entry_count,
+                                    param->fp_comp_count,
+                                    param->fp_comp_count_sign,
+                                    param->fp_exclude_comp_count, 1, 0);
+               if (ret == -1)
+                       goto out;
+       }
+
+       ret = 1;
+       for (i = 0; i < comp_v1->lcm_entry_count; i++) {
+               entry = &comp_v1->lcm_entries[i];
+
+               if (param->fp_check_comp_flags) {
+                       if (((entry->lcme_flags & param->fp_comp_flags) &&
+                            param->fp_exclude_comp_flags) ||
+                           (!(entry->lcme_flags & param->fp_comp_flags) &&
+                            !param->fp_exclude_comp_flags))
+                               ret = -1;
+                       else
+                               ret = 1;
+
+                       if (ret == -1)
+                               continue;
+               }
+
+               if (param->fp_check_comp_start) {
+                       ret = find_value_cmp(entry->lcme_extent.e_start,
+                                            param->fp_comp_start,
+                                            param->fp_comp_start_sign,
+                                            param->fp_exclude_comp_start,
+                                            param->fp_comp_start_units, 0);
+                       if (ret == -1)
+                               continue;
+               }
+
+               if (param->fp_check_comp_end) {
+                       ret = find_comp_end_cmp(entry->lcme_extent.e_end,
+                                               param);
+                       if (ret == -1)
+                               continue;
+               }
+
+               /* the component matches all criteria */
+               break;
+       }
+out:
+       if (forged_v1 != NULL)
+               free(forged_v1);
+       return ret;
 }
 
-/**
- * Check whether the obd is active or not, if it is
- * 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 bool find_check_lmm_info(struct find_param *param)
 {
-        struct obd_statfs stat_buf;
-        struct obd_uuid uuid_buf;
-        int ret;
+       return param->fp_check_pool || param->fp_check_stripe_count ||
+              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_projid;
+}
 
-        LASSERT(type == LL_STATFS_LOV || type == LL_STATFS_LMV);
+/*
+ * Get file/directory project id.
+ * by the open fd resides on.
+ * Return 0 and project id on success, or -ve errno.
+ */
+static int fget_projid(int fd, int *projid)
+{
+       struct fsxattr fsx;
+       int rc;
 
-        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));
-       }
+       rc = ioctl(fd, LL_IOC_FSGETXATTR, &fsx);
+       if (rc)
+               return -errno;
 
-       return ret;
+       *projid = fsx.fsx_projid;
+       return 0;
 }
 
 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 find_param *param = (struct find_param *)data;
        DIR *dir = dirp == NULL ? NULL : *dirp;
-        int decision = 1; /* 1 is accepted; -1 is rejected. */
+       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;
+       int lustre_fs = 1;
+       int checked_type = 0;
+       int ret = 0;
+       __u32 stripe_count = 0;
+       int fd = -2;
 
-        LASSERT(parent != NULL || dir != NULL);
-
-       param->fp_lmd->lmd_lmm.lmm_stripe_count = 0;
+       if (parent == NULL && dir == NULL)
+               return -EINVAL;
 
        /* If a regular expression is presented, make the initial decision */
        if (param->fp_pattern != NULL) {
@@ -2756,20 +3634,26 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
        if (param->fp_obd_uuid || param->fp_mdt_uuid ||
            param->fp_check_uid || param->fp_check_gid ||
            param->fp_atime || param->fp_mtime || param->fp_ctime ||
-           param->fp_check_pool || param->fp_check_size ||
-           param->fp_check_stripe_count || param->fp_check_stripe_size ||
-           param->fp_check_layout)
+           param->fp_check_size || find_check_lmm_info(param) ||
+           param->fp_check_mdt_count || param->fp_check_hash_type)
                decision = 0;
 
        if (param->fp_type != 0 && checked_type == 0)
                 decision = 0;
 
        if (decision == 0) {
+               if (param->fp_check_mdt_count || param->fp_check_hash_type) {
+                       param->fp_get_lmv = 1;
+                       ret = cb_get_dirstripe(path, dir, param);
+                       if (ret != 0)
+                               return ret;
+               }
+
+               param->fp_lmd->lmd_lmm.lmm_magic = 0;
                ret = get_lmd_info(path, parent, dir, param->fp_lmd,
                                   param->fp_lum_size);
                if (ret == 0 && param->fp_lmd->lmd_lmm.lmm_magic == 0 &&
-                   (param->fp_check_pool || param->fp_check_stripe_count ||
-                    param->fp_check_stripe_size || param->fp_check_layout)) {
+                   find_check_lmm_info(param)) {
                        struct lov_user_md *lmm = &param->fp_lmd->lmd_lmm;
 
                        /* We need to "fake" the "use the default" values
@@ -2788,8 +3672,6 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                                ret = llapi_file_fget_mdtidx(dirfd(dir),
                                                     &param->fp_file_mdt_index);
                        } else if (S_ISREG(st->st_mode)) {
-                               int fd;
-
                                /* 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
@@ -2800,7 +3682,6 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                                if (fd > 0) {
                                        ret = llapi_file_fget_mdtidx(fd,
                                                     &param->fp_file_mdt_index);
-                                       close(fd);
                                } else {
                                        ret = -errno;
                                }
@@ -2817,7 +3698,9 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                        if (ret == -ENOENT)
                                goto decided;
 
-                       return ret;
+                       goto out;
+               } else {
+                       stripe_count = find_get_stripe_count(param);
                }
        }
 
@@ -2846,7 +3729,7 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                        ret = setup_target_indexes(dir ? dir : parent, path,
                                                   param);
                        if (ret)
-                               return ret;
+                               goto out;
 
                        param->fp_dev = st->st_dev;
                } else if (!lustre_fs && param->fp_got_uuids) {
@@ -2858,33 +3741,41 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
         }
 
        if (param->fp_check_stripe_size) {
-               decision = find_value_cmp(
-                               param->fp_lmd->lmd_lmm.lmm_stripe_size,
-                               param->fp_stripe_size,
-                               param->fp_stripe_size_sign,
-                               param->fp_exclude_stripe_size,
-                               param->fp_stripe_size_units, 0);
+               decision = find_check_stripe_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,
+                                         param->fp_exclude_stripe_count, 1, 0);
+               if (decision == -1)
+                       goto decided;
+       }
+
+       if (param->fp_check_mdt_count) {
                decision = find_value_cmp(
-                               param->fp_lmd->lmd_lmm.lmm_stripe_count,
-                               param->fp_stripe_count,
-                               param->fp_stripe_count_sign,
-                               param->fp_exclude_stripe_count, 1, 0);
+                               param->fp_lmv_md->lum_stripe_count,
+                               param->fp_mdt_count,
+                               param->fp_mdt_count_sign,
+                               param->fp_exclude_mdt_count, 1, 0);
                if (decision == -1)
                        goto decided;
-        }
+       }
 
        if (param->fp_check_layout) {
+               decision = find_check_layout(param);
+               if (decision == -1)
+                       goto decided;
+       }
+
+       if (param->fp_check_hash_type) {
                __u32 found;
 
-               found = (param->fp_lmd->lmd_lmm.lmm_pattern & param->fp_layout);
-               if ((param->fp_lmd->lmd_lmm.lmm_pattern == 0xFFFFFFFF) ||
-                   (found && param->fp_exclude_layout) ||
-                   (!found && !param->fp_exclude_layout)) {
+               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)) {
                        decision = -1;
                        goto decided;
                }
@@ -2939,33 +3830,47 @@ obd_matches:
                }
        }
 
-       if (param->fp_check_pool) {
-               struct lov_user_md_v3 *lmmv3 = (void *)&param->fp_lmd->lmd_lmm;
+       if (param->fp_check_projid) {
+               int projid = 0;
 
-               /* empty requested pool is taken as no pool search => V1 */
-               if (((param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) &&
-                    (param->fp_poolname[0] == '\0')) ||
-                   ((param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
-                    (strncmp(lmmv3->lmm_pool_name,
-                             param->fp_poolname, LOV_MAXPOOLNAME) == 0)) ||
-                   ((param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
-                    (strcmp(param->fp_poolname, "*") == 0))) {
-                       if (param->fp_exclude_pool)
+               if (fd == -2)
+                       fd = open(path, O_RDONLY);
+
+               if (fd > 0)
+                       ret = fget_projid(fd, &projid);
+               else
+                       ret = -errno;
+               if (ret)
+                       goto out;
+               if (projid == param->fp_projid) {
+                       if (param->fp_exclude_uid)
                                goto decided;
                } else {
-                       if (!param->fp_exclude_pool)
+                       if (!param->fp_exclude_projid)
                                goto decided;
                }
        }
 
+       if (param->fp_check_pool) {
+               decision = find_check_pool(param);
+               if (decision == -1)
+                       goto decided;
+       }
+
+       if (param->fp_check_comp_count || param->fp_check_comp_flags ||
+           param->fp_check_comp_start || param->fp_check_comp_end) {
+               decision = find_check_comp_options(param);
+               if (decision == -1)
+                       goto decided;
+       }
+
        /* Check the time on mds. */
        decision = 1;
        if (param->fp_atime || param->fp_mtime || param->fp_ctime) {
                 int for_mds;
 
-               for_mds = lustre_fs ? (S_ISREG(st->st_mode) &&
-                                      param->fp_lmd->lmd_lmm.lmm_stripe_count)
-                       : 0;
+               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;
@@ -2975,9 +3880,8 @@ obd_matches:
            The regular stat is almost of the same speed as some new
            'glimpse-size-ioctl'. */
 
-       if (param->fp_check_size && S_ISREG(st->st_mode) &&
-           param->fp_lmd->lmd_lmm.lmm_stripe_count)
-                decision = 0;
+       if (param->fp_check_size && S_ISREG(st->st_mode) && stripe_count)
+               decision = 0;
 
        if (param->fp_check_size && S_ISDIR(st->st_mode))
                decision = 0;
@@ -3006,19 +3910,19 @@ obd_matches:
                                             __func__, path);
                                 goto decided;
                         } else {
-                                ret = -errno;
-                                llapi_error(LLAPI_MSG_ERROR, ret,
-                                            "%s: IOC_LOV_GETINFO on %s failed",
-                                            __func__, path);
-                                return ret;
-                        }
-                }
+                               ret = -errno;
+                               llapi_error(LLAPI_MSG_ERROR, ret,
+                                           "%s: IOC_LOV_GETINFO on %s failed",
+                                           __func__, path);
+                               goto out;
+                       }
+               }
 
-                /* Check the time on osc. */
-                decision = find_time_check(st, param, 0);
-                if (decision == -1)
-                        goto decided;
-        }
+               /* Check the time on osc. */
+               decision = find_time_check(st, param, 0);
+               if (decision == -1)
+                       goto decided;
+       }
 
        if (param->fp_check_size)
                decision = find_value_cmp(st->st_size, param->fp_size,
@@ -3026,22 +3930,26 @@ obd_matches:
                                          param->fp_exclude_size,
                                          param->fp_size_units, 0);
 
-        if (decision != -1) {
-                llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
+       if (decision != -1) {
+               llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
                if (param->fp_zero_end)
-                        llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
-                else
-                        llapi_printf(LLAPI_MSG_NORMAL, "\n");
-        }
+                       llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
+               else
+                       llapi_printf(LLAPI_MSG_NORMAL, "\n");
+       }
 
 decided:
-        /* Do not get down anymore? */
-       if (param->fp_depth == param->fp_max_depth)
-               return 1;
-
+       ret = 0;
+       /* Do not get down anymore? */
+       if (param->fp_depth == param->fp_max_depth) {
+               ret = 1;
+               goto out;
+       }
        param->fp_depth++;
-
-       return 0;
+out:
+       if (fd > 0)
+               close(fd);
+       return ret;
 }
 
 static int cb_migrate_mdt_init(char *path, DIR *parent, DIR **dirp,
@@ -3058,7 +3966,9 @@ static int cb_migrate_mdt_init(char *path, DIR *parent, DIR **dirp,
        char                    *filename;
        bool                    retry = false;
 
-       LASSERT(parent != NULL || dirp != NULL);
+       if (parent == NULL && dirp == NULL)
+               return -EINVAL;
+
        if (dirp != NULL)
                closedir(*dirp);
 
@@ -3140,7 +4050,7 @@ int llapi_migrate_mdt(char *path, struct find_param *param)
 
 int llapi_mv(char *path, struct find_param *param)
 {
-#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 53, 0)
+#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 59, 0)
        static bool printed;
 
        if (!printed) {
@@ -3177,7 +4087,8 @@ static int cb_get_mdt_index(char *path, DIR *parent, DIR **dirp, void *data,
        int ret;
        int mdtidx;
 
-       LASSERT(parent != NULL || d != NULL);
+       if (parent == NULL && d == NULL)
+               return -EINVAL;
 
        if (d != NULL) {
                ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
@@ -3239,14 +4150,15 @@ static int cb_getstripe(char *path, DIR *parent, DIR **dirp, void *data,
        DIR *d = dirp == NULL ? NULL : *dirp;
         int ret = 0;
 
-        LASSERT(parent != NULL || d != NULL);
+       if (parent == NULL && d == NULL)
+               return -EINVAL;
 
        if (param->fp_obd_uuid) {
                param->fp_quiet = 1;
-                ret = setup_obd_uuid(d ? d : parent, path, param);
-                if (ret)
-                        return ret;
-        }
+               ret = setup_obd_uuid(d ? dirfd(d) : dirfd(parent), path, param);
+               if (ret)
+                       return ret;
+       }
 
        if (d) {
                if (param->fp_get_lmv || param->fp_get_default_lmv) {
@@ -3337,7 +4249,7 @@ err_out:
 
 dump:
        if (!(param->fp_verbose & VERBOSE_MDTINDEX))
-                llapi_lov_dump_user_lmm(param, path, d ? 1 : 0);
+               llapi_lov_dump_user_lmm(param, path, d ? LDF_IS_DIR : 0);
 
 out:
        /* Do not get down anymore? */
@@ -3356,11 +4268,9 @@ int llapi_getstripe(char *path, struct find_param *param)
                               cb_common_fini, param);
 }
 
-int llapi_obd_statfs(char *path, __u32 type, __u32 index,
-                     struct obd_statfs *stat_buf,
-                     struct obd_uuid *uuid_buf)
+int llapi_obd_fstatfs(int fd, __u32 type, __u32 index,
+                     struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
 {
-        int fd;
         char raw[OBD_MAX_IOCTL_BUFFER] = {'\0'};
         char *rawbuf = raw;
         struct obd_ioctl_data data = { 0 };
@@ -3382,23 +4292,31 @@ int llapi_obd_statfs(char *path, __u32 type, __u32 index,
                 return rc;
         }
 
-        fd = open(path, O_RDONLY);
-        if (errno == EISDIR)
-                fd = open(path, O_DIRECTORY | O_RDONLY);
+       rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
+
+       return rc < 0 ? -errno : 0;
+}
+
+int llapi_obd_statfs(char *path, __u32 type, __u32 index,
+                    struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
+{
+       int fd;
+       int rc;
 
+       fd = open(path, O_RDONLY);
        if (fd < 0) {
-               rc = errno ? -errno : -EBADF;
+               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. */
                return -ENODEV;
        }
-       rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
-       if (rc)
-               rc = errno ? -errno : -EINVAL;
+
+       rc = llapi_obd_fstatfs(fd, type, index, stat_buf, uuid_buf);
 
        close(fd);
+
        return rc;
 }
 
@@ -3526,7 +4444,7 @@ int llapi_is_lustre_mnt(struct mntent *mnt)
 int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
 {
        char fsname[PATH_MAX + 1];
-       DIR *root;
+       int root;
        int rc;
 
        rc = llapi_search_fsname(mnt, fsname);
@@ -3536,19 +4454,19 @@ int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
                return rc;
        }
 
-        root = opendir(mnt);
-        if (!root) {
-                rc = -errno;
-                llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
-                return rc;
-        }
+       root = open(mnt, O_RDONLY | O_DIRECTORY);
+       if (root < 0) {
+               rc = -errno;
+               llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+               return rc;
+       }
 
-       rc = ioctl(dirfd(root), OBD_IOC_QUOTACTL, qctl);
-        if (rc < 0)
-                rc = -errno;
+       rc = ioctl(root, OBD_IOC_QUOTACTL, qctl);
+       if (rc < 0)
+               rc = -errno;
 
-        closedir(root);
-        return rc;
+       close(root);
+       return rc;
 }
 
 /* Print mdtname 'name' into 'buf' using 'format'.  Add -MDT0000 if needed.
@@ -3588,251 +4506,44 @@ static int get_mdtname(char *name, char *format, char *buf)
 int root_ioctl(const char *mdtname, int opc, void *data, int *mdtidxp,
               int want_error)
 {
-        char fsname[20];
-        char *ptr;
+       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, 10);
-                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;
-}
-
-/****** Changelog API ********/
-
-static int changelog_ioctl(const char *mdtname, int opc, int id,
-                           long long recno, int flags)
-{
-        struct ioc_changelog data;
-        int *idx;
-
-        data.icc_id = id;
-        data.icc_recno = recno;
-        data.icc_flags = flags;
-        idx = (int *)(&data.icc_mdtindex);
-
-        return root_ioctl(mdtname, opc, &data, idx, WANT_ERROR);
-}
-
-#define CHANGELOG_PRIV_MAGIC 0xCA8E1080
-struct changelog_private {
-       int                             magic;
-       enum changelog_send_flag        flags;
-       struct lustre_kernelcomm        kuc;
-};
-
-/** Start reading from a changelog
- * @param priv Opaque private control structure
- * @param flags Start flags (e.g. CHANGELOG_FLAG_BLOCK)
- * @param device Report changes recorded on this MDT
- * @param startrec Report changes beginning with this record number
- * (just call llapi_changelog_fini when done; don't need an endrec)
- */
-int llapi_changelog_start(void **priv, enum changelog_send_flag flags,
-                         const char *device, long long startrec)
-{
-       struct changelog_private        *cp;
-       static bool                      warned;
-       int                              rc;
-
-       /* Set up the receiver control struct */
-       cp = calloc(1, sizeof(*cp));
-       if (cp == NULL)
-               return -ENOMEM;
-
-       cp->magic = CHANGELOG_PRIV_MAGIC;
-       cp->flags = flags;
-
-       /* Set up the receiver */
-       rc = libcfs_ukuc_start(&cp->kuc, 0 /* no group registration */, 0);
-       if (rc < 0)
-               goto out_free;
-
-       *priv = cp;
-
-       /* CHANGELOG_FLAG_JOBID will eventually become mandatory. Display a
-        * warning if it's missing. */
-       if (!(flags & CHANGELOG_FLAG_JOBID) && !warned) {
-               llapi_err_noerrno(LLAPI_MSG_WARN, "warning: %s() called "
-                                 "w/o CHANGELOG_FLAG_JOBID", __func__);
-               warned = true;
+       /* 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);
        }
-
-       /* Tell the kernel to start sending */
-       rc = changelog_ioctl(device, OBD_IOC_CHANGELOG_SEND, cp->kuc.lk_wfd,
-                            startrec, flags);
-       /* Only the kernel reference keeps the write side open */
-       close(cp->kuc.lk_wfd);
-       cp->kuc.lk_wfd = LK_NOFD;
        if (rc < 0) {
-               /* frees and clears priv */
-               llapi_changelog_fini(priv);
+               if (want_error)
+                       llapi_err_noerrno(LLAPI_MSG_ERROR,
+                                         "Can't open %s: %d\n", mdtname, rc);
                return rc;
        }
 
-       return 0;
+       if (mdtidxp)
+               *mdtidxp = index;
 
-out_free:
-       free(cp);
+       rc = ioctl(fd, opc, data);
+       if (rc == -1)
+               rc = -errno;
+       else
+               rc = 0;
+       close(fd);
        return rc;
 }
 
-/** Finish reading from a changelog */
-int llapi_changelog_fini(void **priv)
-{
-        struct changelog_private *cp = (struct changelog_private *)*priv;
-
-        if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
-                return -EINVAL;
-
-        libcfs_ukuc_stop(&cp->kuc);
-        free(cp);
-        *priv = NULL;
-        return 0;
-}
-
-/**
- * Convert all records to a same format according to the caller's wishes.
- * Default is CLF_VERSION | CLF_RENAME.
- * Add CLF_JOBID if explicitely requested.
- *
- * \param rec  The record to remap. It is expected to be big enough to
- *             properly handle the final format.
- * \return 1 if anything changed. 0 otherwise.
- */
-/** Read the next changelog entry
- * @param priv Opaque private control structure
- * @param rech Changelog record handle; record will be allocated here
- * @return 0 valid message received; rec is set
- *         <0 error code
- *         1 EOF
- */
-#define DEFAULT_RECORD_FMT     (CLF_VERSION | CLF_RENAME)
-int llapi_changelog_recv(void *priv, struct changelog_rec **rech)
-{
-       struct changelog_private        *cp = (struct changelog_private *)priv;
-       struct kuc_hdr                  *kuch;
-       enum changelog_rec_flags         rec_fmt = DEFAULT_RECORD_FMT;
-       int                              rc = 0;
-
-       if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
-               return -EINVAL;
-       if (rech == NULL)
-               return -EINVAL;
-       kuch = malloc(KUC_CHANGELOG_MSG_MAXSIZE);
-       if (kuch == NULL)
-               return -ENOMEM;
-
-       if (cp->flags & CHANGELOG_FLAG_JOBID)
-               rec_fmt |= CLF_JOBID;
-
-repeat:
-       rc = libcfs_ukuc_msg_get(&cp->kuc, (char *)kuch,
-                                KUC_CHANGELOG_MSG_MAXSIZE,
-                                KUC_TRANSPORT_CHANGELOG);
-       if (rc < 0)
-               goto out_free;
-
-        if ((kuch->kuc_transport != KUC_TRANSPORT_CHANGELOG) ||
-            ((kuch->kuc_msgtype != CL_RECORD) &&
-             (kuch->kuc_msgtype != CL_EOF))) {
-                llapi_err_noerrno(LLAPI_MSG_ERROR,
-                                  "Unknown changelog message type %d:%d\n",
-                                  kuch->kuc_transport, kuch->kuc_msgtype);
-                rc = -EPROTO;
-                goto out_free;
-        }
-
-        if (kuch->kuc_msgtype == CL_EOF) {
-                if (cp->flags & CHANGELOG_FLAG_FOLLOW) {
-                        /* Ignore EOFs */
-                        goto repeat;
-                } else {
-                        rc = 1;
-                        goto out_free;
-                }
-        }
-
-       /* Our message is a changelog_rec.  Use pointer math to skip
-        * kuch_hdr and point directly to the message payload. */
-       *rech = (struct changelog_rec *)(kuch + 1);
-       changelog_remap_rec(*rech, rec_fmt);
-
-        return 0;
-
-out_free:
-        *rech = NULL;
-        free(kuch);
-        return rc;
-}
-
-/** Release the changelog record when done with it. */
-int llapi_changelog_free(struct changelog_rec **rech)
-{
-        if (*rech) {
-                /* We allocated memory starting at the kuc_hdr, but passed
-                 * the consumer a pointer to the payload.
-                 * Use pointer math to get back to the header.
-                 */
-                struct kuc_hdr *kuch = (struct kuc_hdr *)*rech - 1;
-                free(kuch);
-        }
-        *rech = NULL;
-        return 0;
-}
-
-int llapi_changelog_clear(const char *mdtname, const char *idstr,
-                          long long endrec)
-{
-       long id;
-
-        if (endrec < 0) {
-                llapi_err_noerrno(LLAPI_MSG_ERROR,
-                                  "can't purge negative records\n");
-                return -EINVAL;
-        }
-
-        id = strtol(idstr + strlen(CHANGELOG_USER_PREFIX), NULL, 10);
-        if ((id == 0) || (strncmp(idstr, CHANGELOG_USER_PREFIX,
-                                  strlen(CHANGELOG_USER_PREFIX)) != 0)) {
-                llapi_err_noerrno(LLAPI_MSG_ERROR,
-                                  "expecting id of the form '"
-                                  CHANGELOG_USER_PREFIX
-                                  "<num>'; got '%s'\n", idstr);
-                return -EINVAL;
-        }
-
-        return changelog_ioctl(mdtname, OBD_IOC_CHANGELOG_CLEAR, id, endrec, 0);
-}
-
 int llapi_fid2path(const char *device, const char *fidstr, char *buf,
                   int buflen, long long *recno, int *linkno)
 {
@@ -3990,24 +4701,24 @@ int llapi_path2parent(const char *path, unsigned int linkno,
 
 int llapi_get_connect_flags(const char *mnt, __u64 *flags)
 {
-        DIR *root;
-        int rc;
+       int root;
+       int rc;
 
-        root = opendir(mnt);
-        if (!root) {
-                rc = -errno;
-                llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
-                return rc;
-        }
+       root = open(mnt, O_RDONLY | O_DIRECTORY);
+       if (root < 0) {
+               rc = -errno;
+               llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+               return rc;
+       }
 
-        rc = ioctl(dirfd(root), LL_IOC_GET_CONNECT_FLAGS, flags);
-        if (rc < 0) {
-                rc = -errno;
-                llapi_error(LLAPI_MSG_ERROR, rc,
-                            "ioctl on %s for getting connect flags failed", mnt);
-        }
-        closedir(root);
-        return rc;
+       rc = ioctl(root, LL_IOC_GET_CONNECT_FLAGS, flags);
+       if (rc < 0) {
+               rc = -errno;
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                       "ioctl on %s for getting connect flags failed", mnt);
+       }
+       close(root);
+       return rc;
 }
 
 /**