object-storage: Use fchown instead of chown.

This is a step towards making fd based system calls where ever possible to avoid
path lookups.

Signed-off-by: Mohammed Junaid <junaid@redhat.com>
Change-Id: I482ea29ebe0859d0a5307ff25ecb5945d54bc7ca
Reviewed-on: http://review.gluster.org/5251
Reviewed-by: Peter Portante <pportant@redhat.com>
Tested-by: Peter Portante <pportant@redhat.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/gluster/swift/common/fs_utils.py b/gluster/swift/common/fs_utils.py
index de450a5..b3f58b7 100644
--- a/gluster/swift/common/fs_utils.py
+++ b/gluster/swift/common/fs_utils.py
@@ -74,6 +74,15 @@ def do_chown(path, uid, gid):
     return True
 
 
+def do_fchown(fd, uid, gid):
+    try:
+        os.fchown(fd, uid, gid)
+    except OSError as err:
+        logging.exception("fchown failed on %d err: %s", fd, err.strerror)
+        raise
+    return True
+
+
 def do_stat(path):
     try:
         #Check for fd.