linux.git/fs/ceph/caps.c, branch v3.14 Linux kernel source tree ceph: add imported caps when handling cap export message 2014-01-21T08:30:31+00:00 Yan, Zheng zheng.z.yan@intel.com 2013-11-24T06:44:38+00:00 11df2dfb610d68e8050c2183c344b1002351a99d Version 3 cap export message includes information about the imported caps. It allows us to add the imported caps if the corresponding cap import message still hasn't been received. This allow us to handle situation that the importer MDS crashes and the cap import message is missing. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> 
Version 3 cap export message includes information about the imported
caps. It allows us to add the imported caps if the corresponding cap
import message still hasn't been received.

This allow us to handle situation that the importer MDS crashes and
the cap import message is missing.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
ceph: remove exported caps when handling cap import message 2014-01-21T08:30:28+00:00 Yan, Zheng zheng.z.yan@intel.com 2013-11-24T06:43:46+00:00 4ee6a914edbbd2543884f0ad7d58ea471136be32 Version 3 cap import message includes the ID of the exported caps. It allow us to remove the exported caps if we still haven't received the corresponding cap export message. We remove the exported caps because they are stale, keeping them can compromise consistence. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> 
Version 3 cap import message includes the ID of the exported
caps. It allow us to remove the exported caps if we still haven't
received the corresponding cap export message.

We remove the exported caps because they are stale, keeping them
can compromise consistence.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
ceph: check inode caps in ceph_d_revalidate 2014-01-21T05:29:33+00:00 Yan, Zheng zheng.z.yan@intel.com 2013-11-30T04:47:41+00:00 9215aeea622fec7ca8123c6bd6f03a1753e2b0b3 Some inodes in readdir reply may have no caps. Getattr mds request for these inodes can return -ESTALE. The fix is consider dentry that links to inode with no caps as invalid. Invalid dentry causes a lookup request to send to the mds, the MDS will send caps back. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> 
Some inodes in readdir reply may have no caps. Getattr mds request
for these inodes can return -ESTALE. The fix is consider dentry that
links to inode with no caps as invalid. Invalid dentry causes a
lookup request to send to the mds, the MDS will send caps back.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
ceph: fix cache revoke race 2014-01-21T05:29:32+00:00 Yan, Zheng zheng.z.yan@intel.com 2013-11-22T05:50:45+00:00 9563f88c1fa01341d125e396edc654a8dbcab2d2 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> 
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>
ceph: use ceph_seq_cmp() to compare migrate_seq 2014-01-21T05:29:32+00:00 Yan, Zheng zheng.z.yan@intel.com 2013-11-13T06:47:19+00:00 d1b87809fba3e07a261080837d1ae58d790b51a6 Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> 
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
ceph: handle cap export race in try_flush_caps() 2014-01-21T05:29:32+00:00 Yan, Zheng zheng.z.yan@intel.com 2013-10-31T08:44:14+00:00 4fe59789adc93b2573b0417ac93136805521902e auth cap may change after releasing the i_ceph_lock Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> 
auth cap may change after releasing the i_ceph_lock

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
ceph: trivial comment fix 2014-01-17T00:03:50+00:00 J. Bruce Fields bfields@redhat.com 2014-01-16T22:42:53+00:00 fc12c80aa57ee90385dc90e4263ec1a66200ba76 "disconnected" is too easily confused with "DCACHE_DISCONNECTED". I think "unhashed" is the more precise term here. Signed-off-by: J. Bruce Fields <bfields@redhat.com> Reviewed-by: Sage Weil <sage@inktank.com> 
"disconnected" is too easily confused with "DCACHE_DISCONNECTED".  I
think "unhashed" is the more precise term here.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Reviewed-by: Sage Weil <sage@inktank.com>
ceph: add acl for cephfs 2013-12-31T18:32:01+00:00 Guangliang Zhao lucienchao@gmail.com 2013-11-11T07:18:03+00:00 7221fe4c2ed72804b28633c8e0217d65abb0023f Signed-off-by: Guangliang Zhao <lucienchao@gmail.com> Reviewed-by: Li Wang <li.wang@ubuntykylin.com> Reviewed-by: Zheng Yan <zheng.z.yan@intel.com> 
Signed-off-by: Guangliang Zhao <lucienchao@gmail.com>
Reviewed-by: Li Wang <li.wang@ubuntykylin.com>
Reviewed-by: Zheng Yan <zheng.z.yan@intel.com>
ceph: handle race between cap reconnect and cap release 2013-11-23T19:01:02+00:00 Yan, Zheng zheng.z.yan@intel.com 2013-09-22T03:08:14+00:00 99a9c273b94a087f8feaec6c5ffbe3205a2dbe51 When a cap get released while composing the cap reconnect message. We should skip queuing the release message if the cap hasn't been added to the cap reconnect message. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com> 
When a cap get released while composing the cap reconnect message.
We should skip queuing the release message if the cap hasn't been
added to the cap reconnect message.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
ceph: queue cap release in __ceph_remove_cap() 2013-11-23T19:00:59+00:00 Yan, Zheng zheng.z.yan@intel.com 2013-09-22T02:15:58+00:00 a096b09aeec6ff99edfdfd8cee24d6f25377d585 call __queue_cap_release() in __ceph_remove_cap(), this avoids acquiring s_cap_lock twice. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com> 
call __queue_cap_release() in __ceph_remove_cap(), this avoids
acquiring s_cap_lock twice.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>