storage/posix: Set gfid after all xattrs, uid/gid are set

        Backport of http://review.gluster.com/9434

Problem:
When a new entry is created gfid is set even before uid/gid, xattrs
are set on the entry. This can lead to dht/afr healing that file/dir
with the uid/gid it sees just after the gfid is set, i.e. root/root.
Sometimes setattr/setxattr are failing on that file/dir.

Fix:
Set gfid of the file/directory only after uid/gid, xattrs are setup
properly. Readdirp, lookup either wait for the gfid to be assigned
to the entry or not update the in-memory inode ctx in posix-acl
xlator which was producing lot EACCESS/EPERM to the application
or dht/afr self-heals.

BUG: 1184527
Change-Id: Ia6dfd492e03db2275665e7f63260611b310e38e6
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/9471
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>

1 files changed, 32 insertions, 32 deletions

diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c
index c1730e8d337..f52fff303fa 100644
--- a/xlators/storage/posix/src/posix.c
+++ b/xlators/storage/posix/src/posix.c
@@ -1146,14 +1146,6 @@ real_op:
 
         entry_created = _gf_true;
 
-        op_ret = posix_gfid_set (this, real_path, loc, xdata);
-        if (op_ret) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "setting gfid on %s failed", real_path);
-        } else {
-                gfid_set = _gf_true;
-        }
-
 #ifndef HAVE_SET_FSID
         op_ret = lchown (real_path, frame->root->uid, gid);
         if (op_ret == -1) {
@@ -1190,6 +1182,14 @@ ignore:
                         strerror (errno));
         }
 
+        op_ret = posix_gfid_set (this, real_path, loc, xdata);
+        if (op_ret) {
+                gf_log (this->name, GF_LOG_ERROR,
+                        "setting gfid on %s failed", real_path);
+        } else {
+                gfid_set = _gf_true;
+        }
+
         op_ret = posix_pstat (this, NULL, real_path, &stbuf);
         if (op_ret == -1) {
                 op_errno = errno;
@@ -1326,14 +1326,6 @@ posix_mkdir (call_frame_t *frame, xlator_t *this,
 
         entry_created = _gf_true;
 
-        op_ret = posix_gfid_set (this, real_path, loc, xdata);
-        if (op_ret) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "setting gfid on %s failed", real_path);
-        } else {
-                gfid_set = _gf_true;
-        }
-
 #ifndef HAVE_SET_FSID
         op_ret = chown (real_path, frame->root->uid, gid);
         if (op_ret == -1) {
@@ -1358,6 +1350,14 @@ posix_mkdir (call_frame_t *frame, xlator_t *this,
                         strerror (errno));
         }
 
+        op_ret = posix_gfid_set (this, real_path, loc, xdata);
+        if (op_ret) {
+                gf_log (this->name, GF_LOG_ERROR,
+                        "setting gfid on %s failed", real_path);
+        } else {
+                gfid_set = _gf_true;
+        }
+
         op_ret = posix_pstat (this, NULL, real_path, &stbuf);
         if (op_ret == -1) {
                 op_errno = errno;
@@ -1753,14 +1753,6 @@ posix_symlink (call_frame_t *frame, xlator_t *this,
 
         entry_created = _gf_true;
 
-        op_ret = posix_gfid_set (this, real_path, loc, xdata);
-        if (op_ret) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "setting gfid on %s failed", real_path);
-        } else {
-                gfid_set = _gf_true;
-        }
-
 #ifndef HAVE_SET_FSID
         op_ret = lchown (real_path, frame->root->uid, gid);
         if (op_ret == -1) {
@@ -1793,6 +1785,14 @@ ignore:
                         strerror (errno));
         }
 
+        op_ret = posix_gfid_set (this, real_path, loc, xdata);
+        if (op_ret) {
+                gf_log (this->name, GF_LOG_ERROR,
+                        "setting gfid on %s failed", real_path);
+        } else {
+                gfid_set = _gf_true;
+        }
+
         op_ret = posix_pstat (this, NULL, real_path, &stbuf);
         if (op_ret == -1) {
                 op_errno = errno;
@@ -2289,14 +2289,6 @@ posix_create (call_frame_t *frame, xlator_t *this,
         if (was_present)
                 goto fill_stat;
 
-        op_ret = posix_gfid_set (this, real_path, loc, xdata);
-        if (op_ret) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "setting gfid on %s failed", real_path);
-        } else {
-                gfid_set = _gf_true;
-        }
-
 #ifndef HAVE_SET_FSID
         op_ret = chown (real_path, frame->root->uid, gid);
         if (op_ret == -1) {
@@ -2329,6 +2321,14 @@ ignore:
         }
 
 fill_stat:
+        op_ret = posix_gfid_set (this, real_path, loc, xdata);
+        if (op_ret) {
+                gf_log (this->name, GF_LOG_ERROR,
+                        "setting gfid on %s failed", real_path);
+        } else {
+                gfid_set = _gf_true;
+        }
+
         op_ret = posix_fdstat (this, _fd, &stbuf);
         if (op_ret == -1) {
                 op_errno = errno;