cluster/ec: Implement heal info with lock

Problem: Currently heal info command prints all
the files/directories if the index for the
file/directory is present in .glusterfs/indices folder.
After implementing patch http://review.gluster.org/#/c/13733/
indices of the file which is going through update fop
will also be present in .glusterfs/indices even
if the fop is successful on all the brick. At this time
if heal info command is being used, it will also display this
file which is actually healthy and does not require any heal.

Solution: Take lock on a file corresponding to the indices
and inspect xattrs to decide if the file needs heal or not.

>Reviewed-on: http://review.gluster.org/15543
>NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
>Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
>Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
>CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
>Smoke: Gluster Build System <jenkins@build.gluster.org>
>Signed-off-by: Ashish Pandey <aspandey@redhat.com>

Change-Id: I6361e2813ece369be12d02e74816df4eddb81cfa
BUG: 1383913
Signed-off-by: Ashish Pandey <aspandey@redhat.com>
Reviewed-on: http://review.gluster.org/15627
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>

1 files changed, 5 insertions, 0 deletions

diff --git a/tests/volume.rc b/tests/volume.rc
index aa614c50489..c8105567a38 100644
--- a/tests/volume.rc
+++ b/tests/volume.rc
@@ -704,3 +704,8 @@ function get_hard_link_count {
         local path=$1;
         stat -c %h $path
 }
+
+function count_sh_entries()
+{
+    ls $1/.glusterfs/indices/xattrop | grep -v "xattrop-" | wc -l
+}