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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/caps.c | |
| parent | d1b87809fba3e07a261080837d1ae58d790b51a6 (diff) | |
| download | op-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/caps.c')
| -rw-r--r-- | fs/ceph/caps.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 2c39d9f..d2154d6 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -816,7 +816,7 @@ int __ceph_caps_revoking_other(struct ceph_inode_info *ci, for (p = rb_first(&ci->i_caps); p; p = rb_next(p)) { cap = rb_entry(p, struct ceph_cap, ci_node); - if (cap != ocap && __cap_is_valid(cap) && + if (cap != ocap && (cap->implemented & ~cap->issued & mask)) return 1; } |
