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authorPranith Kumar K <pranithk@gluster.com>2012-04-16 14:42:56 +0530
committerAnand Avati <avati@redhat.com>2012-05-31 16:53:00 -0700
commit4bc0fa312f8a64c7ee0f52e5635d7f082454aaa2 (patch)
tree0942b392b9d795419722d3e9119726e36b1cb580 /xlators/storage/posix/src/posix.c
parentd2ac835ba0d51ce1679dc71640472eecbfbaa704 (diff)
storage/posix: Prevent gfid handle leaks
The case which can lead to gfid handle leaks: Self-heal removes directory '/d' with 10 files in it, in brick b1. This dir is renamed to <landfill>/<hashval of '<brick-path>/d'> by posix. Before the janitor thread could remove the directory, self-heal could remove another directory with same path '/d'. Then again the rename to same path is done by posix as before. The gfid-handles of the old '/d', 10 files in it are not unlinked. To prevent such problems, rename the directory to be removed to <landfill>/<gfid-str>. Change-Id: Iad13708e1ebcc5222b64c058aa9a2d372e1bfa5b BUG: 811970 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Reviewed-on: http://review.gluster.com/3159 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'xlators/storage/posix/src/posix.c')
-rw-r--r--xlators/storage/posix/src/posix.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c
index 5bfaa4214cc..e18654cc728 100644
--- a/xlators/storage/posix/src/posix.c
+++ b/xlators/storage/posix/src/posix.c
@@ -1120,6 +1120,7 @@ posix_rmdir (call_frame_t *frame, xlator_t *this,
int32_t op_errno = 0;
char * real_path = NULL;
char * par_path = NULL;
+ char * gfid_str = NULL;
struct iatt preparent = {0,};
struct iatt postparent = {0,};
struct iatt stbuf;
@@ -1159,12 +1160,13 @@ posix_rmdir (call_frame_t *frame, xlator_t *this,
}
if (flags) {
- uint32_t hashval = 0;
- char *tmp_path = alloca (strlen (priv->trash_path) + 16);
+ gfid_str = uuid_utoa (stbuf.ia_gfid);
+ char *tmp_path = alloca (strlen (priv->trash_path) +
+ strlen ("/") +
+ strlen (gfid_str) + 1);
mkdir (priv->trash_path, 0755);
- hashval = gf_dm_hashfn (real_path, strlen (real_path));
- sprintf (tmp_path, "%s/%u", priv->trash_path, hashval);
+ sprintf (tmp_path, "%s/%s", priv->trash_path, gfid_str);
op_ret = rename (real_path, tmp_path);
} else {
op_ret = rmdir (real_path);