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(parent: d1b8780) | patch
ceph: fix cache revoke race
authorYan, Zheng <zheng.z.yan@intel.com>
Fri, 22 Nov 2013 05:50:45 +0000 (13:50 +0800)
committerYan, Zheng <zheng.z.yan@intel.com>
Tue, 21 Jan 2014 05:29:32 +0000 (13:29 +0800)
commit9563f88c1fa01341d125e396edc654a8dbcab2d2
tree421b041c32cd218720bc1369b0abe1ce353d4547tree | snapshot
parentd1b87809fba3e07a261080837d1ae58d790b51a6commit | diff
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>
fs/ceph/caps.c diff | blob | history
fs/ceph/inode.c diff | blob | history
fs/ceph/super.h diff | blob | history
Andy's Linux Kernel repo