locks: generic_delete_lease doesn't need a file_lock at all

2014-10-07T18:06:12Z

Ensure that it's OK to pass in a NULL file_lock double pointer on a F_UNLCK request and convert the vfs_setlease F_UNLCK callers to do just that. Finally, turn the BUG_ON in generic_setlease into a WARN_ON_ONCE with an error return. That's a problem we can handle without crashing the box if it occurs. Signed-off-by: Jeff Layton Reviewed-by: Christoph Hellwig

locks: add some tracepoints in the lease handling code

2014-06-02T12:09:30Z

v2: add a __break_lease tracepoint for non-blocking case Recently, I needed these to help track down a softlockup when recalling a delegation, but they might be helpful in other situations as well. Cc: "J. Bruce Fields" Signed-off-by: Jeff Layton

kernel/include/trace/events/filelock.h, branch linux-4.1.y

locks: generic_delete_lease doesn't need a file_lock at all

locks: add some tracepoints in the lease handling code