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LU-819 utils: Fix lfs getstripe -M
[fs/lustre-release.git] / lustre / utils / liblustreapi.c
index 88a0cd2..719ab51 100644 (file)
@@ -177,6 +177,9 @@ int parse_size(char *optarg, unsigned long long *size,
 {
         char *end;
 
+        if (strncmp(optarg, "-", 1) == 0)
+                return -1;
+
         if (*size_units == 0)
                 *size_units = 1;
 
@@ -268,6 +271,25 @@ int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
         return 0;
 }
 
+/* return the first file matching this pattern */
+static int first_match(char *pattern, char *buffer)
+{
+        glob_t glob_info;
+
+        if (glob(pattern, GLOB_BRACE, NULL, &glob_info))
+                return -ENOENT;
+
+        if (glob_info.gl_pathc < 1) {
+                globfree(&glob_info);
+                return -ENOENT;
+        }
+
+        strcpy(buffer, glob_info.gl_pathv[0]);
+
+        globfree(&glob_info);
+        return 0;
+}
+
 static int find_target_obdpath(char *fsname, char *path)
 {
         glob_t glob_info;
@@ -310,6 +332,135 @@ static int find_poolpath(char *fsname, char *poolname, char *poolpath)
         return 0;
 }
 
+/**
+  * return a parameter string for a specific device type or mountpoint
+  *
+  * \param param_path the path to the file containing parameter data
+  * \param result buffer for parameter value string
+  * \param result_size size of buffer for return value
+  *
+  * The \param param_path is appended to /proc/{fs,sys}/{lnet,lustre} to
+  * complete the absolute path to the file containing the parameter data
+  * the user is requesting. If that file exist then the data is read from
+  * the file and placed into the \param result buffer that is passed by
+  * the user. Data is only copied up to the \param result_size to prevent
+  * overflow of the array.
+  *
+  * Return 0 for success, with a NUL-terminated string in \param result.
+  * Return -ve value for error.
+  */
+static int get_param(const char *param_path, char *result,
+                     unsigned int result_size)
+{
+        char file[PATH_MAX + 1], pattern[PATH_MAX + 1], buf[result_size];
+        FILE *fp = NULL;
+        int rc = 0;
+
+        snprintf(pattern, PATH_MAX, "/proc/{fs,sys}/{lnet,lustre}/%s",
+                 param_path);
+        rc = first_match(pattern, file);
+        if (rc)
+                return rc;
+
+        fp = fopen(file, "r");
+        if (fp != NULL) {
+                while (fgets(buf, result_size, fp) != NULL)
+                        strcpy(result, buf);
+                fclose(fp);
+        } else {
+                rc = -errno;
+        }
+        return rc;
+}
+
+#define DEVICES_LIST "/proc/fs/lustre/devices"
+
+/**
+  * return a parameter string for a specific device type or mountpoint
+  *
+  * \param fsname Lustre filesystem name (optional)
+  * \param file_path path to file in filesystem (optional, if fsname unset)
+  * \param obd_type Lustre OBD device type
+  * \param param_name parameter name to fetch
+  * \param value return buffer for parameter value string
+  * \param val_len size of buffer for return value
+  *
+  * If fsname is specified then the parameter will be from that filesystem
+  * (if it exists). If file_path is given and it is in a mounted Lustre
+  * filesystem, then the parameter will be otherwise the value may be
+  * from any mounted filesystem (if there is more than one).
+  *
+  * If "obd_type" matches a Lustre device then the first matching device
+  * (as with "lctl dl", constrained by \param fsname or \param mount_path)
+  * will be used to provide the return value, otherwise the first such
+  * device found will be used.
+  *
+  * Return 0 for success, with a NUL-terminated string in \param buffer.
+  * Return -ve value for error.
+  */
+static int get_param_obdvar(const char *fsname, const char *file_path,
+                            const char *obd_type, const char *param_name,
+                            char *value, unsigned int val_len)
+{
+        char devices[PATH_MAX + 1], dev[PATH_MAX + 1] = "*", fs[PATH_MAX + 1];
+        FILE *fp = fopen(DEVICES_LIST, "r");
+        int rc = 0;
+
+        if (!fsname && file_path) {
+                rc = llapi_search_fsname(file_path, fs);
+                if (rc) {
+                        llapi_error(LLAPI_MSG_ERROR, rc,
+                                    "'%s' is not on a Lustre filesystem",
+                                    file_path);
+                        return rc;
+                }
+        } else if (fsname) {
+                strcpy(fs, fsname);
+        }
+
+        if (fp == NULL) {
+                rc = -errno;
+                llapi_error(LLAPI_MSG_ERROR, rc, "error: opening "DEVICES_LIST);
+                return rc;
+        }
+
+        while (fgets(devices, sizeof(devices), fp) != NULL) {
+                char *bufp = devices, *tmp;
+
+                while (bufp[0] == ' ')
+                        ++bufp;
+
+                tmp = strstr(bufp, obd_type);
+                if (tmp) {
+                        tmp += strlen(obd_type) + 1;
+                        if (strcmp(tmp, fs))
+                                continue;
+                        strcpy(dev, tmp);
+                        tmp = strchr(dev, ' ');
+                        *tmp = '\0';
+                        break;
+                }
+        }
+
+        if (dev[0] == '*' && strlen(fs))
+                snprintf(dev, PATH_MAX, "%s-*", fs);
+        snprintf(devices, PATH_MAX, "%s/%s/%s", obd_type, dev, param_name);
+        fclose(fp);
+        return get_param(devices, value, val_len);
+}
+
+static int get_mds_md_size(char *path)
+{
+        int lumlen = lov_mds_md_size(LOV_MAX_STRIPE_COUNT, LOV_MAGIC_V3);
+        char buf[16];
+
+        /* Now get the maxea from llite proc */
+        if (!get_param_obdvar(NULL, path, "llite", "max_easize",
+                              buf, sizeof(buf)))
+                lumlen = atoi(buf);
+        return lumlen;
+}
+
 /*
  * if pool is NULL, search ostname in target_obd
  * if pool is not NULL:
@@ -682,25 +833,6 @@ int llapi_getname(const char *path, char *buf, size_t size)
 }
 
 
-/* return the first file matching this pattern */
-static int first_match(char *pattern, char *buffer)
-{
-        glob_t glob_info;
-
-        if (glob(pattern, GLOB_BRACE, NULL, &glob_info))
-                return -ENOENT;
-
-        if (glob_info.gl_pathc < 1) {
-                globfree(&glob_info);
-                return -ENOENT;
-        }
-
-        strcpy(buffer, glob_info.gl_pathv[0]);
-
-        globfree(&glob_info);
-        return 0;
-}
-
 /*
  * find the pool directory path under /proc
  * (can be also used to test if a fsname is known)
@@ -920,42 +1052,72 @@ int llapi_poollist(const char *name)
 {
         /* list of pool names (assume that pool count is smaller
            than OST count) */
-        char *list[FIND_MAX_OSTS];
-        char *buffer;
-        /* fsname-OST0000_UUID < 32 char, 1 per OST */
-        int bufsize = FIND_MAX_OSTS * 32;
-        int i, nb;
-
-        buffer = malloc(bufsize);
-        if (buffer == NULL)
-                return -ENOMEM;
+        char **list, *buffer = NULL, *path = NULL, *fsname = NULL;
+        int obdcount, bufsize, rc, nb, i;
+        char *poolname = NULL, *tmp = NULL, data[16];
+
+        if (name[0] != '/') {
+                fsname = strdup(name);
+                poolname = strchr(fsname, '.');
+                if (poolname)
+                        *poolname = '\0';
+        } else {
+                path = (char *) name;
+        }
+
+        rc = get_param_obdvar(fsname, path, "lov", "numobd",
+                              data, sizeof(data));
+        if (rc < 0)
+                goto err;
+        obdcount = atoi(data);
+
+        /* Allocate space for each fsname-OST0000_UUID, 1 per OST,
+         * and also an array to store the pointers for all that
+         * allocated space. */
+retry_get_pools:
+        bufsize = sizeof(struct obd_uuid) * obdcount;
+        buffer = realloc(tmp, bufsize + sizeof(*list) * obdcount);
+        if (buffer == NULL) {
+                rc = -ENOMEM;
+                goto err;
+        }
+        list = (char **) (buffer + bufsize);
 
-        if ((name[0] == '/') || (strchr(name, '.') == NULL))
+        if (!poolname) {
                 /* name is a path or fsname */
-                nb = llapi_get_poollist(name, list, FIND_MAX_OSTS, buffer,
-                                        bufsize);
-        else
+                nb = llapi_get_poollist(name, list, obdcount,
+                                        buffer, bufsize);
+        } else {
                 /* name is a pool name (<fsname>.<poolname>) */
-                nb = llapi_get_poolmembers(name, list, FIND_MAX_OSTS, buffer,
-                                           bufsize);
+                nb = llapi_get_poolmembers(name, list, obdcount,
+                                           buffer, bufsize);
+        }
+
+        if (nb == -EOVERFLOW) {
+                obdcount *= 2;
+                tmp = buffer;
+                goto retry_get_pools;
+        }
 
         for (i = 0; i < nb; i++)
                 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
-
-        free(buffer);
-        return (nb < 0 ? nb : 0);
+        rc = (nb < 0 ? nb : 0);
+err:
+        if (buffer)
+                free(buffer);
+        if (fsname)
+                free(fsname);
+        return rc;
 }
 
-
 typedef int (semantic_func_t)(char *path, DIR *parent, DIR *d,
                               void *data, cfs_dirent_t *de);
 
-#define MAX_LOV_UUID_COUNT      max(LOV_MAX_STRIPE_COUNT, 1000)
 #define OBD_NOT_FOUND           (-1)
 
-static int common_param_init(struct find_param *param)
+static int common_param_init(struct find_param *param, char *path)
 {
-        param->lumlen = lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC_V3);
+        param->lumlen = get_mds_md_size(path);
         param->lmd = malloc(sizeof(lstat_t) + param->lumlen);
         if (param->lmd == NULL) {
                 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
@@ -1005,21 +1167,27 @@ static DIR *opendir_parent(char *path)
         return parent;
 }
 
-int llapi_mds_getfileinfo(char *path, DIR *parent,
-                          struct lov_user_mds_data *lmd)
+static int get_lmd_info(char *path, DIR *parent, DIR *dir,
+                 struct lov_user_mds_data *lmd, int lumlen)
 {
         lstat_t *st = &lmd->lmd_st;
-        char *fname = strrchr(path, '/');
         int ret = 0;
 
-        if (parent == NULL)
+        if (parent == NULL && dir == NULL)
                 return -EINVAL;
 
-        fname = (fname == NULL ? path : fname + 1);
-        /* retrieve needed file info */
-        strncpy((char *)lmd, fname,
-                lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC));
-        ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
+        if (dir) {
+                ret = ioctl(dirfd(dir), LL_IOC_MDC_GETINFO, (void *)lmd);
+        } else if (parent) {
+                char *fname = strrchr(path, '/');
+
+                fname = (fname == NULL ? path : fname + 1);
+                /* retrieve needed file info */
+                strncpy((char *)lmd, fname, lumlen);
+                ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
+        } else {
+                return ret;
+        }
 
         if (ret) {
                 if (errno == ENOTTY) {
@@ -1031,24 +1199,34 @@ int llapi_mds_getfileinfo(char *path, DIR *parent,
                                 llapi_error(LLAPI_MSG_ERROR, ret,
                                             "error: %s: lstat failed for %s",
                                             __func__, path);
-                                return ret;
                         }
                 } else if (errno == ENOENT) {
                         ret = -errno;
                         llapi_error(LLAPI_MSG_WARN, ret,
                                     "warning: %s: %s does not exist",
                                     __func__, path);
-                        return ret;
+                } else if (errno != EISDIR) {
+                        ret = -errno;
+                        llapi_error(LLAPI_MSG_ERROR, ret,
+                                    "%s ioctl failed for %s.",
+                                    dir ? "LL_IOC_MDC_GETINFO" :
+                                    "IOC_MDC_GETFILEINFO", path);
                 } else {
                         ret = -errno;
                         llapi_error(LLAPI_MSG_ERROR, ret,
                                    "error: %s: IOC_MDC_GETFILEINFO failed for %s",
                                    __func__, path);
-                        return ret;
                 }
         }
+        return ret;
+}
 
-        return 0;
+int llapi_mds_getfileinfo(char *path, DIR *parent,
+                          struct lov_user_mds_data *lmd)
+{
+        int lumlen = get_mds_md_size(path);
+
+        return get_lmd_info(path, parent, NULL, lmd, lumlen);
 }
 
 static int llapi_semantic_traverse(char *path, int size, DIR *parent,
@@ -1171,12 +1349,12 @@ static int param_callback(char *path, semantic_func_t sem_init,
         if (!buf)
                 return -ENOMEM;
 
-        ret = common_param_init(param);
+        strncpy(buf, path, PATH_MAX + 1);
+        ret = common_param_init(param, buf);
         if (ret)
                 goto out;
         param->depth = 0;
 
-        strncpy(buf, path, PATH_MAX + 1);
         ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
                                       sem_fini, param, NULL);
 out:
@@ -1195,6 +1373,16 @@ int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
         return rc;
 }
 
+int llapi_file_fget_lmv_uuid(int fd, struct obd_uuid *lov_name)
+{
+        int rc = ioctl(fd, OBD_IOC_GETMDNAME, lov_name);
+        if (rc) {
+                rc = -errno;
+                llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lmv name.");
+        }
+        return rc;
+}
+
 int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
 {
         int fd, rc;
@@ -1212,27 +1400,38 @@ int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
         return rc;
 }
 
+enum tgt_type {
+        LOV_TYPE = 1,
+        LMV_TYPE
+};
 /*
  * If uuidp is NULL, return the number of available obd uuids.
  * If uuidp is non-NULL, then it will return the uuids of the obds. If
  * there are more OSTs then allocated to uuidp, then an error is returned with
  * the ost_count set to number of available obd uuids.
  */
-int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
+static int llapi_get_target_uuids(int fd, struct obd_uuid *uuidp,
+                                  int *ost_count, enum tgt_type type)
 {
-        struct obd_uuid lov_name;
+        struct obd_uuid name;
         char buf[1024];
         FILE *fp;
         int rc = 0, index = 0;
 
         /* Get the lov name */
-        rc = llapi_file_fget_lov_uuid(fd, &lov_name);
-        if (rc)
-                return rc;
+        if (type == LOV_TYPE) {
+                rc = llapi_file_fget_lov_uuid(fd, &name);
+                if (rc)
+                        return rc;
+        } else {
+                rc = llapi_file_fget_lmv_uuid(fd, &name);
+                if (rc)
+                        return rc;
+        }
 
         /* Now get the ost uuids from /proc */
-        snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
-                 lov_name.uuid);
+        snprintf(buf, sizeof(buf), "/proc/fs/lustre/%s/%s/target_obd",
+                 type == LOV_TYPE ? "lov" : "lmv", name.uuid);
         fp = fopen(buf, "r");
         if (fp == NULL) {
                 rc = -errno;
@@ -1250,11 +1449,16 @@ int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
 
         fclose(fp);
 
-        if (uuidp && (index >= *ost_count))
-                return -EOVERFLOW;
+        if (uuidp && (index > *ost_count))
+                rc = -EOVERFLOW;
 
         *ost_count = index;
-        return 0;
+        return rc;
+}
+
+int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
+{
+        return llapi_get_target_uuids(fd, uuidp, ost_count, LOV_TYPE);
 }
 
 int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
@@ -1305,7 +1509,7 @@ int llapi_uuid_match(char *real_uuid, char *search_uuid)
  * returned in param->obdindex */
 static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
 {
-        struct obd_uuid lov_uuid;
+        struct obd_uuid obd_uuid;
         char uuid[sizeof(struct obd_uuid)];
         char buf[1024];
         FILE *fp;
@@ -1314,8 +1518,11 @@ static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
         if (param->got_uuids)
                 return rc;
 
-        /* Get the lov name */
-        rc = llapi_file_fget_lov_uuid(dirfd(dir), &lov_uuid);
+        /* Get the lov/lmv name */
+        if (param->get_lmv)
+                rc = llapi_file_fget_lmv_uuid(dirfd(dir), &obd_uuid);
+        else
+                rc = llapi_file_fget_lov_uuid(dirfd(dir), &obd_uuid);
         if (rc) {
                 if (rc != -ENOTTY) {
                         llapi_error(LLAPI_MSG_ERROR, rc,
@@ -1329,8 +1536,8 @@ static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
         param->got_uuids = 1;
 
         /* Now get the ost uuids from /proc */
-        snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
-                 lov_uuid.uuid);
+        snprintf(buf, sizeof(buf), "/proc/fs/lustre/%s/%s/target_obd",
+                 param->get_lmv ? "lmv" : "lov", obd_uuid.uuid);
         fp = fopen(buf, "r");
         if (fp == NULL) {
                 rc = -errno;
@@ -1339,7 +1546,8 @@ static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
         }
 
         if (!param->obduuid && !param->quiet && !param->obds_printed)
-                llapi_printf(LLAPI_MSG_NORMAL, "OBDS:\n");
+                llapi_printf(LLAPI_MSG_NORMAL, "%s:\n",
+                             param->get_lmv ? "MDTS" : "OBDS:");
 
         while (fgets(buf, sizeof(buf), fp) != NULL) {
                 if (sscanf(buf, "%d: %s", &index, uuid) < 2)
@@ -1372,20 +1580,28 @@ static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
 /* In this case, param->obduuid will be an array of obduuids and
  * obd index for all these obduuids will be returned in
  * param->obdindexes */
-static int setup_obd_indexes(DIR *dir, struct find_param *param)
+static int setup_indexes(DIR *dir, char *path, struct obd_uuid *obduuids,
+                         int num_obds, int **obdindexes, int *obdindex,
+                         enum tgt_type type)
 {
+        int ret, obdcount, obd_valid = 0, obdnum, i;
         struct obd_uuid *uuids = NULL;
-        int obdcount = INIT_ALLOC_NUM_OSTS;
-        int ret, obd_valid = 0, obdnum, i;
+        char buf[16];
+        int *indexes;
+
+        ret = get_param_obdvar(NULL, path, type == LOV_TYPE ? "lov" : "lmv",
+                               "numobd", buf, sizeof(buf));
+        if (ret)
+                return ret;
 
-        uuids = (struct obd_uuid *)malloc(INIT_ALLOC_NUM_OSTS *
+        obdcount = atoi(buf);
+        uuids = (struct obd_uuid *)malloc(obdcount *
                                           sizeof(struct obd_uuid));
         if (uuids == NULL)
                 return -ENOMEM;
 
 retry_get_uuids:
-        ret = llapi_lov_get_uuids(dirfd(dir), uuids,
-                                  &obdcount);
+        ret = llapi_get_target_uuids(dirfd(dir), uuids, &obdcount, type);
         if (ret) {
                 struct obd_uuid *uuids_temp;
 
@@ -1399,42 +1615,66 @@ retry_get_uuids:
                 }
 
                 llapi_error(LLAPI_MSG_ERROR, ret, "get ost uuid failed");
-                return ret;
+                goto out_free;
         }
 
-        param->obdindexes = malloc(param->num_obds * sizeof(param->obdindex));
-        if (param->obdindexes == NULL)
-                return -ENOMEM;
+        indexes = malloc(num_obds * sizeof(*obdindex));
+        if (indexes == NULL) {
+                ret = -ENOMEM;
+                goto out_free;
+        }
 
-        for (obdnum = 0; obdnum < param->num_obds; obdnum++) {
+        for (obdnum = 0; obdnum < num_obds; obdnum++) {
                 for (i = 0; i < obdcount; i++) {
                         if (llapi_uuid_match(uuids[i].uuid,
-                                             param->obduuid[obdnum].uuid)) {
-                                param->obdindexes[obdnum] = i;
+                                             obduuids[obdnum].uuid)) {
+                                indexes[obdnum] = i;
                                 obd_valid++;
                                 break;
                         }
                 }
                 if (i >= obdcount) {
-                        param->obdindexes[obdnum] = OBD_NOT_FOUND;
+                        indexes[obdnum] = OBD_NOT_FOUND;
                         llapi_err_noerrno(LLAPI_MSG_ERROR,
                                           "error: %s: unknown obduuid: %s",
-                                          __func__,
-                                          param->obduuid[obdnum].uuid);
+                                          __func__, obduuids[obdnum].uuid);
                         ret = -EINVAL;
                 }
         }
 
         if (obd_valid == 0)
-                param->obdindex = OBD_NOT_FOUND;
+                *obdindex = OBD_NOT_FOUND;
         else
-                param->obdindex = obd_valid;
+                *obdindex = obd_valid;
 
-        param->got_uuids = 1;
+        *obdindexes = indexes;
+out_free:
+        if (uuids)
+                free(uuids);
 
         return ret;
 }
 
+static int setup_target_indexes(DIR *dir, char *path, struct find_param *param)
+{
+        int ret = 0;
+
+        if (param->mdtuuid) {
+                ret = setup_indexes(dir, path, param->mdtuuid, param->num_mdts,
+                              &param->mdtindexes, &param->mdtindex, LMV_TYPE);
+                if (ret)
+                        return ret;
+        }
+        if (param->obduuid) {
+                ret = setup_indexes(dir, path, param->obduuid, param->num_obds,
+                              &param->obdindexes, &param->obdindex, LOV_TYPE);
+                if (ret)
+                        return ret;
+        }
+        param->got_uuids = 1;
+        return ret;
+}
+
 int llapi_ostlist(char *path, struct find_param *param)
 {
         DIR *dir;
@@ -1654,7 +1894,7 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                                                               &scount, NULL,
                                                               NULL);
                                 if (rc == 0)
-                                        llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
+                                        llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
                                                      scount, nl);
                                 else
                                         llapi_error(LLAPI_MSG_ERROR, rc,
@@ -1698,6 +1938,14 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                              lum->lmm_pattern, nl);
         }
 
+        if ((verbose & VERBOSE_GENERATION) && !is_dir) {
+                if (verbose & ~VERBOSE_GENERATION)
+                        llapi_printf(LLAPI_MSG_NORMAL, "%slayout_gen:     ",
+                                     prefix);
+                llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
+                             (int)lum->u.lum_layout_gen, nl);
+        }
+
         if (verbose & VERBOSE_OFFSET) {
                 if (verbose & ~VERBOSE_OFFSET)
                         llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset:  ",
@@ -1926,7 +2174,7 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds)
         /* Check if file is accepted. */
         if (param->atime) {
                 ret = find_value_cmp(st->st_atime, param->atime,
-                                     param->asign, param->exclude_atime, 
+                                     param->asign, param->exclude_atime,
                                      24 * 60 * 60, mds);
                 if (ret < 0)
                         return ret;
@@ -1935,7 +2183,7 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds)
 
         if (param->mtime) {
                 ret = find_value_cmp(st->st_mtime, param->mtime,
-                                     param->msign, param->exclude_mtime, 
+                                     param->msign, param->exclude_mtime,
                                      24 * 60 * 60, mds);
                 if (ret < 0)
                         return ret;
@@ -1962,6 +2210,104 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds)
         return rc;
 }
 
+/**
+ * Check whether the stripes matches the indexes user provided
+ *       1   : matched
+ *       0   : Unmatched
+ */
+static int check_obd_match(struct find_param *param)
+{
+        lstat_t *st = &param->lmd->lmd_st;
+        struct lov_user_ost_data_v1 *lmm_objects;
+        int i, j;
+
+        if (param->obduuid && param->obdindex == OBD_NOT_FOUND)
+                return 0;
+
+        if (!S_ISREG(st->st_mode))
+                return 0;
+
+        /* Only those files should be accepted, which have a
+         * stripe on the specified OST. */
+        if (!param->lmd->lmd_lmm.lmm_stripe_count)
+                return 0;
+
+        if (param->lmd->lmd_lmm.lmm_magic ==
+            LOV_USER_MAGIC_V3) {
+                struct lov_user_md_v3 *lmmv3 = (void *)&param->lmd->lmd_lmm;
+
+                lmm_objects = lmmv3->lmm_objects;
+        } else if (param->lmd->lmd_lmm.lmm_magic ==  LOV_USER_MAGIC_V1) {
+                lmm_objects = param->lmd->lmd_lmm.lmm_objects;
+        } else {
+                llapi_err_noerrno(LLAPI_MSG_ERROR, "%s:Unknown magic: 0x%08X\n",
+                                  __func__, param->lmd->lmd_lmm.lmm_magic);
+                return -EINVAL;
+        }
+
+        for (i = 0; i < param->lmd->lmd_lmm.lmm_stripe_count; i++) {
+                for (j = 0; j < param->num_obds; j++) {
+                        if (param->obdindexes[j] ==
+                            lmm_objects[i].l_ost_idx) {
+                                if (param->exclude_obd)
+                                        return 0;
+                                return 1;
+                        }
+                }
+        }
+
+        if (param->exclude_obd)
+                return 1;
+        return 0;
+}
+
+static int check_mdt_match(struct find_param *param)
+{
+        int i;
+
+        if (param->mdtuuid && param->mdtindex == OBD_NOT_FOUND)
+                return 0;
+
+        /* FIXME: For striped dir, we should get stripe information and check */
+        for (i = 0; i < param->num_mdts; i++) {
+                if (param->mdtindexes[i] == param->file_mdtindex)
+                        if (param->exclude_mdt)
+                                return 0;
+                        return 1;
+        }
+
+        if (param->exclude_mdt)
+                return 1;
+        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;
+
+        LASSERT(type == LL_STATFS_LOV || type == LL_STATFS_LMV);
+
+        memset(&stat_buf, 0, sizeof(struct obd_statfs));
+        memset(&uuid_buf, 0, sizeof(struct obd_uuid));
+        ret = llapi_obd_statfs(path, type,
+                               param->obdindex, &stat_buf,
+                               &uuid_buf);
+        if (ret) {
+                llapi_printf(LLAPI_MSG_NORMAL,
+                             "obd_uuid: %s failed %s ",
+                             param->obduuid->uuid,
+                             strerror(errno));
+        }
+        return ret;
+}
+
 static int cb_find_init(char *path, DIR *parent, DIR *dir,
                         void *data, cfs_dirent_t *de)
 {
@@ -2000,58 +2346,61 @@ static int cb_find_init(char *path, DIR *parent, DIR *dir,
                 }
         }
 
-
         ret = 0;
 
         /* Request MDS for the stat info if some of these parameters need
          * to be compared. */
-        if (param->obduuid    || param->check_uid || param->check_gid ||
-            param->check_pool || param->atime     || param->ctime     ||
-            param->mtime      || param->check_size)
+        if (param->obduuid    || param->mdtuuid || param->check_uid ||
+            param->check_gid || param->check_pool || param->atime   ||
+            param->ctime     || param->mtime || param->check_size)
                 decision = 0;
+
         if (param->type && checked_type == 0)
                 decision = 0;
 
         if (param->have_fileinfo == 0 && decision == 0) {
-                if (dir) {
-                        /* retrieve needed file info */
-                        ret = ioctl(dirfd(dir), LL_IOC_MDC_GETINFO,
-                                    (void *)param->lmd);
-                } else {
-                        char *fname = strrchr(path, '/');
-                        fname = (fname == NULL ? path : fname + 1);
-
-                        /* retrieve needed file info */
-                        strncpy((char *)param->lmd, fname, param->lumlen);
-                        ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO,
-                                   (void *)param->lmd);
-                }
-        }
-
-        if (ret) {
-                if (errno == ENOTTY) {
-                        /* ioctl is not supported, it is not a lustre fs.
-                         * Do the regular lstat(2) instead. */
-                        lustre_fs = 0;
-                        ret = lstat_f(path, st);
-                        if (ret) {
-                                ret = -errno;
-                                llapi_error(LLAPI_MSG_ERROR, ret,
-                                            "error: %s: lstat failed for %s",
-                                            __func__, path);
-                                return ret;
+                ret = get_lmd_info(path, parent, dir, param->lmd,
+                                   param->lumlen);
+                if (ret == 0) {
+                        if (dir) {
+                                ret = llapi_file_fget_mdtidx(dirfd(dir),
+                                                     &param->file_mdtindex);
+                        } else {
+                                int fd;
+                                lstat_t tmp_st;
+
+                                ret = lstat_f(path, &tmp_st);
+                                if (ret) {
+                                        ret = -errno;
+                                        llapi_error(LLAPI_MSG_ERROR, ret,
+                                                    "error: %s: lstat failed"
+                                                    "for %s", __func__, path);
+                                        return ret;
+                                }
+                                if (S_ISREG(tmp_st.st_mode)) {
+                                        fd = open(path, O_RDONLY);
+                                        if (fd > 0) {
+                                                ret = llapi_file_fget_mdtidx(fd,
+                                                         &param->file_mdtindex);
+                                                close(fd);
+                                        } else {
+                                                ret = fd;
+                                        }
+                                } else {
+                                        /* For special inode, it assumes to
+                                         * reside on the same MDT with the
+                                         * parent */
+                                        fd = dirfd(parent);
+                                        ret = llapi_file_fget_mdtidx(fd,
+                                                        &param->file_mdtindex);
+                                }
                         }
-                } else if (errno == ENOENT) {
-                        llapi_error(LLAPI_MSG_WARN, -ENOENT,
-                                  "warning: %s: %s does not exist",
-                                  __func__, path);
-                        goto decided;
-                } else {
-                        ret = -errno;
-                        llapi_error(LLAPI_MSG_ERROR, ret,
-                                    "error: %s: %s failed for %s",
-                                    __func__, dir ? "LL_IOC_MDC_GETINFO" :
-                                  "IOC_MDC_GETFILEINFO", path);
+                }
+                if (ret) {
+                        if (ret == -ENOTTY)
+                                lustre_fs = 0;
+                        if (ret == -ENOENT)
+                                goto decided;
                         return ret;
                 }
         }
@@ -2067,17 +2416,18 @@ static int cb_find_init(char *path, DIR *parent, DIR *dir,
         }
 
         /* Prepare odb. */
-        if (param->obduuid) {
+        if (param->obduuid || param->mdtuuid) {
                 if (lustre_fs && param->got_uuids &&
                     param->st_dev != st->st_dev) {
                         /* A lustre/lustre mount point is crossed. */
                         param->got_uuids = 0;
                         param->obds_printed = 0;
-                        param->obdindex = OBD_NOT_FOUND;
+                        param->obdindex = param->mdtindex = OBD_NOT_FOUND;
                 }
 
                 if (lustre_fs && !param->got_uuids) {
-                        ret = setup_obd_indexes(dir ? dir : parent, param);
+                        ret = setup_target_indexes(dir ? dir : parent, path,
+                                                   param);
                         if (ret)
                                 return ret;
 
@@ -2085,59 +2435,36 @@ static int cb_find_init(char *path, DIR *parent, DIR *dir,
                 } else if (!lustre_fs && param->got_uuids) {
                         /* A lustre/non-lustre mount point is crossed. */
                         param->got_uuids = 0;
-                        param->obdindex = OBD_NOT_FOUND;
+                        param->obdindex = param->mdtindex = OBD_NOT_FOUND;
                 }
         }
 
-        /* If an OBD UUID is specified but no one matches, skip this file. */
-        if (param->obduuid && param->obdindex == OBD_NOT_FOUND)
+        if ((param->obduuid && param->obdindex == OBD_NOT_FOUND) ||
+            (param->mdtuuid && param->mdtindex == OBD_NOT_FOUND))
                 goto decided;
 
-        /* If a OST UUID is given, and some OST matches, check it here. */
-        if (param->obdindex != OBD_NOT_FOUND) {
-                if (!S_ISREG(st->st_mode))
-                        goto decided;
-
-                /* Only those files should be accepted, which have a
-                 * stripe on the specified OST. */
-                if (!param->lmd->lmd_lmm.lmm_stripe_count) {
-                        goto decided;
-                } else {
-                        int i, j;
-                        struct lov_user_ost_data_v1 *lmm_objects;
-
-                        if (param->lmd->lmd_lmm.lmm_magic ==
-                            LOV_USER_MAGIC_V3) {
-                                struct lov_user_md_v3 *lmmv3 =
-                                        (void *)&param->lmd->lmd_lmm;
-
-                                lmm_objects = lmmv3->lmm_objects;
+        /* If a OST or MDT UUID is given, and some OST matches,
+         * check it here. */
+        if (param->obdindex != OBD_NOT_FOUND ||
+            param->mdtindex != OBD_NOT_FOUND) {
+                if (param->obduuid) {
+                        if (check_obd_match(param)) {
+                                /* If no mdtuuid is given, we are done.
+                                 * Otherwise, fall through to the mdtuuid
+                                 * check below. */
+                                if (!param->mdtuuid)
+                                        goto obd_matches;
                         } else {
-                                lmm_objects = param->lmd->lmd_lmm.lmm_objects;
-                        }
-
-                        for (i = 0;
-                             i < param->lmd->lmd_lmm.lmm_stripe_count; i++) {
-                                for (j = 0; j < param->num_obds; j++) {
-                                        if (param->obdindexes[j] ==
-                                            lmm_objects[i].l_ost_idx) {
-                                                if (param->exclude_obd)
-                                                        goto decided;
-                                                break;
-                                        }
-                                }
-                                /* If an OBD matches, just break */
-                                if (j != param->num_obds)
-                                        break;
-                        }
-
-                        if (i == param->lmd->lmd_lmm.lmm_stripe_count) {
-                                if (!param->exclude_obd)
-                                        goto decided;
+                                goto decided;
                         }
                 }
+                if (param->mdtuuid) {
+                        if (check_mdt_match(param))
+                                goto obd_matches;
+                        goto decided;
+                }
         }
-
+obd_matches:
         if (param->check_uid) {
                 if (st->st_uid == param->uid) {
                         if (param->exclude_uid)
@@ -2201,30 +2528,16 @@ static int cb_find_init(char *path, DIR *parent, DIR *dir,
         while (!decision) {
                 /* For regular files with the stripe the decision may have not
                  * been taken yet if *time or size is to be checked. */
-                LASSERT(S_ISREG(st->st_mode) &&
-                        param->lmd->lmd_lmm.lmm_stripe_count);
-
-                if (param->obdindex != OBD_NOT_FOUND) {
-                        /* Check whether the obd is active or not, if it is
-                         * not active, just print the object affected by this
-                         * failed ost
-                         * */
-                        struct obd_statfs stat_buf;
-                        struct obd_uuid uuid_buf;
-
-                        memset(&stat_buf, 0, sizeof(struct obd_statfs));
-                        memset(&uuid_buf, 0, sizeof(struct obd_uuid));
-                        ret = llapi_obd_statfs(path, LL_STATFS_LOV,
-                                               param->obdindex, &stat_buf,
-                                               &uuid_buf);
-                        if (ret) {
-                                llapi_printf(LLAPI_MSG_NORMAL,
-                                             "obd_uuid: %s failed %s ",
-                                             param->obduuid->uuid,
-                                             strerror(errno));
-                                break;
-                        }
-                }
+                LASSERT((S_ISREG(st->st_mode) &&
+                        param->lmd->lmd_lmm.lmm_stripe_count) ||
+                        param->mdtindex != OBD_NOT_FOUND);
+
+                if (param->obdindex != OBD_NOT_FOUND)
+                        print_failed_tgt(param, path, LL_STATFS_LOV);
+
+                if (param->mdtindex != OBD_NOT_FOUND)
+                        print_failed_tgt(param, path, LL_STATFS_LMV);
+
                 if (dir) {
                         ret = ioctl(dirfd(dir), IOC_LOV_GETINFO,
                                     (void *)param->lmd);
@@ -2290,7 +2603,7 @@ int llapi_find(char *path, struct find_param *param)
  */
 int llapi_file_fget_mdtidx(int fd, int *mdtidx)
 {
-        if (ioctl(fd, LL_IOC_GET_MDTIDX, &mdtidx) < 0)
+        if (ioctl(fd, LL_IOC_GET_MDTIDX, mdtidx) < 0)
                 return -errno;
         return 0;
 }
@@ -2341,7 +2654,7 @@ static int cb_get_mdt_index(char *path, DIR *parent, DIR *d, void *data,
                 return ret;
         }
 
-        if (param->quiet)
+        if (param->quiet || !(param->verbose & VERBOSE_DETAIL))
                 llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
         else
                 llapi_printf(LLAPI_MSG_NORMAL, "%s MDT index: %d\n",
@@ -2492,7 +2805,6 @@ int llapi_obd_statfs(char *path, __u32 type, __u32 index,
 }
 
 #define MAX_STRING_SIZE 128
-#define DEVICES_LIST "/proc/fs/lustre/devices"
 
 int llapi_ping(char *obd_type, char *obd_name)
 {
@@ -2717,36 +3029,15 @@ static int cb_quotachown(char *path, DIR *parent, DIR *d, void *data,
 
         LASSERT(parent != NULL || d != NULL);
 
-        if (d) {
-                rc = ioctl(dirfd(d), LL_IOC_MDC_GETINFO,
-                           (void *)param->lmd);
-        } else if (parent) {
-                char *fname = strrchr(path, '/');
-                fname = (fname == NULL ? path : fname + 1);
-
-                strncpy((char *)param->lmd, fname, param->lumlen);
-                rc = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO,
-                           (void *)param->lmd);
-        } else {
-                return 0;
-        }
-
+        rc = get_lmd_info(path, parent, d, param->lmd, param->lumlen);
         if (rc) {
-                if (errno == ENODATA) {
+                if (rc == -ENODATA) {
                         if (!param->obduuid && !param->quiet)
                                 llapi_error(LLAPI_MSG_ERROR, -ENODATA,
                                           "%s has no stripe info", path);
                         rc = 0;
-                } else if (errno == ENOENT) {
-                        llapi_error(LLAPI_MSG_ERROR, -ENOENT,
-                                  "warning: %s: %s does not exist",
-                                  __func__, path);
+                } else if (rc == -ENOENT) {
                         rc = 0;
-                } else if (errno != EISDIR) {
-                        rc = -errno;
-                        llapi_error(LLAPI_MSG_ERROR, rc, "%s ioctl failed for %s.",
-                                    d ? "LL_IOC_MDC_GETINFO" :
-                                    "IOC_MDC_GETFILEINFO", path);
                 }
                 return rc;
         }