>From Gui Hecheng <guim...@126.com>:

Gui Hecheng has uploaded a new change for review.

  https://review.gerrithub.io/300909

Change subject: FSAL_VFS: fix segfault when export two subdirs with FSAL_VFS 
and FSAL_XFS
......................................................................

FSAL_VFS: fix segfault when export two subdirs with FSAL_VFS and FSAL_XFS

I export 2 subdirs /dir1, /dir2 of a xfs filesystem, /dir1 with FSAL_XFS
and /dir2 with FSAL_VFS. This export behavior results with only /dir1
exported successfully which is expected.
But when I try to do 'systemctl stop nfs-ganesha', I got a segfault:

kernel: ganesha.nfsd[58288]: segfault at 7f757901a340 ip 00007f757901a340 \
sp 00007f74ef4e94b8 error 15

This is because the failed export of /dir2 forgets to cleanup the export
entry of the FSAL_VFS module upon failure, and the destroy_fsals() got
bad pointers.

Adding a detach_export will fix it.
I tried to clarify the err return paths at the same time.

Change-Id: I02b91e19c789bbf34a8aeda14c3a3faba814bc8b
Signed-off-by: Gui Hecheng <guihech...@cmss.chinamobile.com>
---
M src/FSAL/FSAL_VFS/export.c
1 file changed, 12 insertions(+), 9 deletions(-)


  git pull ssh://review.gerrithub.io:29418/ffilz/nfs-ganesha 
refs/changes/09/300909/1
-- 
To view, visit https://review.gerrithub.io/300909
To unsubscribe, visit https://review.gerrithub.io/settings

Gerrit-MessageType: newchange
Gerrit-Change-Id: I02b91e19c789bbf34a8aeda14c3a3faba814bc8b
Gerrit-PatchSet: 1
Gerrit-Project: ffilz/nfs-ganesha
Gerrit-Branch: next
Gerrit-Owner: Gui Hecheng <guim...@126.com>

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