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authorM. Mohan Kumar <mohan@in.ibm.com>2012-11-29 21:46:07 +0530
committerVijay Bellur <vbellur@redhat.com>2012-11-29 09:38:42 -0800
commitb7840704c2095ad64f56da8d37fbae26db3a81ac (patch)
tree024a9b3dcc6557f75191fb790484ad023635da07 /xlators
parenta41567c137d2e1fca241d962205234c956ebae4f (diff)
BD Backend: Rename LV
BUG: 805138 Change-Id: I18c64435e66ede148c58d412a0639f45554209c8 Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Reviewed-on: http://review.gluster.org/3558 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators')
-rw-r--r--xlators/storage/bd_map/src/bd_map.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/xlators/storage/bd_map/src/bd_map.c b/xlators/storage/bd_map/src/bd_map.c
index f11038e497a..2db5a13cd3d 100644
--- a/xlators/storage/bd_map/src/bd_map.c
+++ b/xlators/storage/bd_map/src/bd_map.c
@@ -62,6 +62,99 @@ out:
return 0;
}
+#define LV_RENAME "/sbin/lvrename"
+
+int bd_rename (call_frame_t *frame, xlator_t *this,
+ loc_t *oldloc, loc_t *newloc, dict_t *xdict)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *new_path = NULL;
+ char *np = NULL;
+ struct iatt stbuf = {0, };
+ struct iatt preoldparent = {0, };
+ struct iatt postoldparent = {0, };
+ struct iatt prenewparent = {0, };
+ struct iatt postnewparent = {0, };
+ bd_priv_t *priv = NULL;
+ bd_entry_t *lventry = NULL;
+ bd_entry_t *newp_entry = NULL;
+ char *path = NULL;
+ struct stat v_stat = {0, };
+ runner_t runner = {0, };
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (oldloc, out);
+ VALIDATE_OR_GOTO (newloc, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+
+ BD_ENTRY (priv, lventry, oldloc->path);
+ if (lventry->refcnt > 1) {
+ op_errno = EBUSY;
+ goto out;
+ }
+
+ memcpy (&preoldparent, lventry->parent->attr, sizeof(preoldparent));
+
+ new_path = np = gf_strdup (newloc->path);
+ if (!new_path)
+ goto out;
+ new_path = strrchr (np, '/');
+ if (!new_path) {
+ op_errno = EINVAL;
+ goto out;
+ }
+
+ *new_path = '\0';
+ BD_ENTRY (priv, newp_entry, np);
+
+ memcpy (&prenewparent, newp_entry->parent->attr, sizeof(preoldparent));
+
+ runinit (&runner);
+
+ runner_add_args (&runner, LV_RENAME, NULL);
+ runner_add_args (&runner, lventry->parent->name, NULL);
+ runner_add_args (&runner, oldloc->name, NULL);
+ runner_add_args (&runner, newloc->name, NULL);
+
+ runner_start (&runner);
+ runner_end (&runner);
+
+ /* verify */
+ gf_asprintf (&path, "/dev/%s", newloc->path);
+ if (stat (path, &v_stat) < 0) {
+ op_errno = EIO;
+ goto out;
+ }
+ BD_ENTRY_UPDATE_MTIME (lventry);
+ BD_ENTRY_UPDATE_MTIME (newp_entry);
+ memcpy (&postoldparent, lventry->parent->attr, sizeof(postoldparent));
+ memcpy (&postnewparent, newp_entry->parent->attr,
+ sizeof(postoldparent));
+ BD_WR_LOCK (&priv->lock);
+ strncpy (lventry->name, newloc->name, sizeof(lventry->name));
+ memcpy (&stbuf, lventry->attr, sizeof(stbuf));
+ BD_UNLOCK (&priv->lock);
+ op_ret = 0;
+out:
+ if (lventry)
+ BD_PUT_ENTRY (priv, lventry);
+ if (newp_entry)
+ BD_PUT_ENTRY (priv, newp_entry);
+ if (np)
+ GF_FREE (np);
+ if (path)
+ GF_FREE (path);
+
+ STACK_UNWIND_STRICT (rename, frame, op_ret, op_errno, &stbuf,
+ &preoldparent, &postoldparent, &prenewparent,
+ &postnewparent, NULL);
+ return 0;
+}
+
int32_t
bd_unlink (call_frame_t *frame, xlator_t *this,
loc_t *loc, int xflag, dict_t *xdata)
@@ -2166,6 +2259,7 @@ struct xlator_fops fops = {
.unlink = bd_unlink,
.link = bd_link,
.symlink = bd_symlink,
+ .rename = bd_rename,
};
struct xlator_cbks cbks = {