tree 3a61d9818f5e457bc073958363a3136ac229f532
parent 40ebd81d1a7635cf92a59c387a599fce4863206b
author Christoph Hellwig <hch@infradead.org> 1196996828 +1100
committer Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> 1202368730 +1100

[XFS] kill superflous buffer locking (2nd attempt)

There is no need to lock any page in xfs_buf.c because we operate on our
own address_space and all locking is covered by the buffer semaphore. If
we ever switch back to main blockdeive address_space as suggested e.g. for
fsblock with a similar scheme the locking will have to be totally revised
anyway because the current scheme is neither correct nor coherent with
itself.

SGI-PV: 971186
SGI-Modid: xfs-linux-melb:xfs-kern:30156a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>