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| author |   Yan, Zheng <zheng.z.yan@intel.com> | 2013-11-22 13:50:45 +0800 |
|---|---|---|
| committer | Yan, Zheng <zheng.z.yan@intel.com> | 2014-01-21 13:29:32 +0800 |
| commit | 9563f88c1fa01341d125e396edc654a8dbcab2d2 (patch) | |
| tree | 421b041c32cd218720bc1369b0abe1ce353d4547 /fs/ceph/super.h | |
| parent | ceph: use ceph_seq_cmp() to compare migrate_seq (diff) | |
| download | linux-dev-9563f88c1fa01341d125e396edc654a8dbcab2d2.tar.xz linux-dev-9563f88c1fa01341d125e396edc654a8dbcab2d2.zip | |
ceph: fix cache revoke race
handle following sequence of events:
- non-auth MDS revokes Fc cap. queue invalidate work
- auth MDS issues Fc cap through request reply. i_rdcache_gen gets
increased.
- invalidate work runs. it finds i_rdcache_revoking != i_rdcache_gen,
so it does nothing.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Diffstat (limited to 'fs/ceph/super.h')
| -rw-r--r-- | fs/ceph/super.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 7fa78a7c8894..891cda8c72aa 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -528,6 +528,8 @@ static inline int __ceph_caps_dirty(struct ceph_inode_info *ci) } extern int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask); +extern int __ceph_caps_revoking_other(struct ceph_inode_info *ci, + struct ceph_cap *ocap, int mask); extern int ceph_caps_revoking(struct ceph_inode_info *ci, int mask); extern int __ceph_caps_used(struct ceph_inode_info *ci); |