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| author | Yan, Zheng <zheng.z.yan@intel.com> | 2013-04-12 10:11:10 +0200 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-05-02 06:18:53 +0200 |
| commit | 37505d5768b9389a5ef7bc1efa465d4484a5462e (patch) | |
| tree | 208daa8785fe4847061a1dafee58ff32b5b861e6 /fs/mount.h | |
| parent | libceph: change how "safe" callback is used (diff) | |
| download | linux-37505d5768b9389a5ef7bc1efa465d4484a5462e.tar.xz linux-37505d5768b9389a5ef7bc1efa465d4484a5462e.zip | |
ceph: take i_mutex before getting Fw cap
There is deadlock as illustrated bellow. The fix is taking i_mutex
before getting Fw cap reference.
write truncate MDS
--------------------- -------------------- --------------
get Fw cap
lock i_mutex
lock i_mutex (blocked)
request setattr.size ->
<- revoke Fw cap
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'fs/mount.h')
0 files changed, 0 insertions, 0 deletions