linux.git/fs/ceph/locks.c, branch v4.9

ceph: fix mandatory flock check

2016-10-03T14:13:49+00:00

Signed-off-by: Yan, Zheng

Move locks API users to locks_lock_inode_wait()

2015-10-22T18:57:36+00:00

Instead of having users check for FL_POSIX or FL_FLOCK to call the correct
locks API function, use the check within locks_lock_inode_wait().  This
allows for some later cleanup.

Signed-off-by: Benjamin Coddington 
Signed-off-by: Jeff Layton

ceph: fix ceph_encode_locks_to_buffer()

2015-07-31T08:38:47+00:00

posix locks should be in ctx->flc_posix list

Signed-off-by: Yan, Zheng 
Signed-off-by: Ilya Dryomov

Revert "locks: keep a count of locks on the flctx lists"

2015-02-16T19:32:03+00:00

This reverts commit 9bd0f45b7037fcfa8b575c7e27d0431d6e6dc3bb.

Linus rightly pointed out that I failed to initialize the counters
when adding them, so they don't work as expected. Just revert this
patch for now.

Reported-by: Linus Torvalds 
Signed-off-by: Jeff Layton

locks: keep a count of locks on the flctx lists

2015-01-16T21:08:50+00:00

This makes things a bit more efficient in the cifs and ceph lock
pushing code.

Signed-off-by: Jeff Layton 
Acked-by: Christoph Hellwig

locks: add a dedicated spinlock to protect i_flctx lists

2015-01-16T21:08:49+00:00

We can now add a dedicated spinlock without expanding struct inode.
Change to using that to protect the various i_flctx lists.

Signed-off-by: Jeff Layton 
Acked-by: Christoph Hellwig

locks: convert posix locks to file_lock_context

2015-01-16T21:08:16+00:00

Signed-off-by: Jeff Layton 
Acked-by: Christoph Hellwig

locks: move flock locks to file_lock_context

2015-01-16T20:09:25+00:00

Signed-off-by: Jeff Layton 
Acked-by: Christoph Hellwig

ceph: move spinlocking into ceph_encode_locks_to_buffer and ceph_count_locks

2015-01-16T20:09:25+00:00

There is only a single call site for each of these functions, and the
caller takes the i_lock prior to calling them and drops it just
afterward. Move the spinlocking into the functions instead.

Signed-off-by: Jeff Layton 
Acked-by: Christoph Hellwig

ceph: fix file lock interruption

2014-12-17T17:09:49+00:00

When a lock operation is interrupted, current code sends a unlock request to
MDS to undo the lock operation. This method does not work as expected because
the unlock request can drop locks that have already been acquired.

The fix is use the newly introduced CEPH_LOCK_FCNTL_INTR/CEPH_LOCK_FLOCK_INTR
requests to interrupt blocked file lock request. These requests do not drop
locks that have alread been acquired, they only interrupt blocked file lock
request.

Signed-off-by: Yan, Zheng