From b777482ac36960537be213c54490aec9e1077a1f Mon Sep 17 00:00:00 2001
From: Raghavendra G <rgowdapp@redhat.com>
Date: Fri, 13 Oct 2017 20:00:47 +0530
Subject: [PATCH 109/128] mount/fuse: never fail open(dir) with ENOENT

open(dir) being an operation on inode should never fail with
ENOENT. If gfid is not present, the appropriate error is ESTALE. This
will enable kernel to retry open after a revalidate lookup.

Change-Id: I8d07d2ebb5a0da6c3ea478317442cb42f1797a4b
BUG: 1492591
Signed-off-by: Raghavendra G <rgowdapp@redhat.com>
upstream patch: https://review.gluster.org/#/c/18521/
Reviewed-on: https://code.engineering.redhat.com/gerrit/126510
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
---
 xlators/mount/fuse/src/fuse-bridge.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/xlators/mount/fuse/src/fuse-bridge.c b/xlators/mount/fuse/src/fuse-bridge.c
index 74b59b8..a6dfd66 100644
--- a/xlators/mount/fuse/src/fuse-bridge.c
+++ b/xlators/mount/fuse/src/fuse-bridge.c
@@ -1069,6 +1069,13 @@ fuse_fd_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
                 fd_bind (fd);
         } else {
         err:
+                /* OPEN(DIR) being an operation on inode should never fail with
+                 * ENOENT. If gfid is not present, the appropriate error is
+                 * ESTALE.
+                 */
+                if (op_errno == ENOENT)
+                        op_errno = ESTALE;
+
                 gf_log ("glusterfs-fuse", GF_LOG_WARNING,
                         "%"PRIu64": %s() %s => -1 (%s)", frame->root->unique,
                         gf_fop_list[frame->root->op], state->loc.path,
-- 
1.8.3.1