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gfapi: handle failures in graph switches

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A graph switch failure can potentially result in NULL returned
for glfs_active_subvol(). Handle this gracefully in glfs_subvol_done()

Change-Id: I6adbd878c354b9ed2314fc71cea4671792efa0a4
BUG: 953694
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/5407
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
This commit is contained in:
Anand Avati 2013-07-21 00:43:18 -07:00 committed by Vijay Bellur
parent c6b8143b9f
commit aa70c0bba0
1 changed files with 3 additions and 0 deletions
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3
api/src/glfs-resolve.c
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@ -797,6 +797,9 @@ glfs_subvol_done (struct glfs *fs, xlator_t *subvol)
int ref = 0;
xlator_t *active_subvol = NULL;
if (!subvol)
return;
glfs_lock (fs);
{
ref = (--subvol->winds);