cluster/afr: Handle EAGAIN properly in inodelk

Problem:
When one of the brick is taken down and brough back up in a replica pair, locks
on that brick will be allowed. Afr returns inodelk success even when one of the
bricks already has the lock taken.

Fix:
If any brick returns EAGAIN return failure to parent xlator.

Change-Id: I5b842d0fc094359cc4231494053d2bfeb606bbbe
BUG: 1141539
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/8710
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/xlators/cluster/afr/src/afr.h b/xlators/cluster/afr/src/afr.h
index c8224e16ab7..cca964d9178 100644
--- a/xlators/cluster/afr/src/afr.h
+++ b/xlators/cluster/afr/src/afr.h
@@ -616,6 +616,11 @@ typedef struct _afr_local {
                         struct iatt postbuf;
                 } zerofill;
 
+                struct {
+                        const char *volume;
+                        int32_t cmd;
+                        struct gf_flock flock;
+                } inodelk;
 
         } cont;