tree cf82cc7853821a21998114d20b1297b14061eade
parent bbb4197c73be356a052dac25cce5ed0c157c6c90
author Christoph Hellwig <hch@lst.de> 1310128579 +0200
committer Christoph Hellwig <hch@lst.de> 1310128579 +0200

xfs: clean up buffer locking helpers

Rename xfs_buf_cond_lock and reverse it's return value to fit most other
trylock operations in the Kernel and XFS (with the exception of down_trylock,
after which xfs_buf_cond_lock was modelled), and replace xfs_buf_lock_val
with an xfs_buf_islocked for use in asserts, or and opencoded variant in
tracing.  remove the XFS_BUF_* wrappers for all the locking helpers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>