kernel.git/fs/ceph/mds_client.c, branch linux-3.13.y

ceph: wake up 'safe' waiters when unregistering request

2013-11-23T19:01:05Z

We also need to wake up 'safe' waiters if error occurs or request aborted. Otherwise sync(2)/fsync(2) may hang forever. Signed-off-by: Yan, Zheng Signed-off-by: Sage Weil

ceph: cleanup aborted requests when re-sending requests.

2013-11-23T19:01:04Z

Aborted requests usually get cleared when the reply is received. If MDS crashes, no reply will be received. So we need to cleanup aborted requests when re-sending requests. Signed-off-by: Yan, Zheng Reviewed-by: Greg Farnum Signed-off-by: Sage Weil

ceph: handle race between cap reconnect and cap release

2013-11-23T19:01:02Z

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 Reviewed-by: Sage Weil

ceph: set caps count after composing cap reconnect message

2013-11-23T19:01:01Z

It's possible that some caps get released while composing the cap reconnect message. Signed-off-by: Yan, Zheng Reviewed-by: Sage Weil

ceph: queue cap release in __ceph_remove_cap()

2013-11-23T19:00:59Z

call __queue_cap_release() in __ceph_remove_cap(), this avoids acquiring s_cap_lock twice. Signed-off-by: Yan, Zheng Reviewed-by: Sage Weil

ceph: handle frag mismatch between readdir request and reply

2013-09-30T21:49:53Z

If client has outdated directory fragments information, it may request readdir an non-existent directory fragment. In this case, the MDS finds an approximate directory fragment and sends its contents back to the client. When receiving a reply with fragment that is different than the requested one, the client need to reset the 'readdir offset'. Signed-off-by: Yan, Zheng Reviewed-by: Sage Weil

ceph: remove ceph_lookup_inode()

2013-09-06T19:55:09Z

commit 6f60f889 (ceph: fix freeing inode vs removing session caps race) introduced ceph_lookup_inode(). But there is already a ceph_find_inode() which provides similar function. So remove ceph_lookup_inode(), use ceph_find_inode() instead. Signed-off-by: Yan, Zheng Reviewed-by: Alex Elder Reviewed-by: Sage Weil

Merge remote-tracking branch 'linus/master' into testing

2013-08-15T18:11:45Z

ceph: fix freeing inode vs removing session caps race

2013-08-10T00:55:32Z

remove_session_caps() uses iterate_session_caps() to remove caps, but iterate_session_caps() skips inodes that are being deleted. So session->s_nr_caps can be non-zero after iterate_session_caps() return. We can fix the issue by waiting until deletions are complete. __wait_on_freeing_inode() is designed for the job, but it is not exported, so we use lookup inode function to access it. Signed-off-by: Yan, Zheng

ceph: fix null pointer dereference

2013-08-10T00:52:58Z

When register_session() is given an out-of-range argument for mds, ceph_mdsmap_get_addr() will return a null pointer, which would be given to ceph_con_open() & be dereferenced, causing a kernel oops. This fixes bug #4685 in the Ceph bug tracker . Signed-off-by: Nathaniel Yazdani Reviewed-by: Sage Weil