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authorYan, Zheng <zheng.z.yan@intel.com>2013-11-22 13:50:45 +0800
committerYan, Zheng <zheng.z.yan@intel.com>2014-01-21 13:29:32 +0800
commit9563f88c1fa01341d125e396edc654a8dbcab2d2 (patch)
tree421b041c32cd218720bc1369b0abe1ce353d4547 /fs/ceph/super.h
parentd1b87809fba3e07a261080837d1ae58d790b51a6 (diff)
downloadop-kernel-dev-9563f88c1fa01341d125e396edc654a8dbcab2d2.zip
op-kernel-dev-9563f88c1fa01341d125e396edc654a8dbcab2d2.tar.gz
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.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 7fa78a7..891cda8 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);
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