tree 8cfcb5a6190722db6249b2e4978f39247975abcf
parent f4e420dc423148fba637af1ab618fa8896dfb2d6
author Christoph Hellwig <hch@lst.de> 1275643797 +0200
committer Al Viro <viro@zeniv.linux.org.uk> 1281386852 -0400

introduce __block_write_begin

Split up the block_write_begin implementation - __block_write_begin is a new
trivial wrapper for block_prepare_write that always takes an already
allocated page and can be either called from block_write_begin or filesystem
code that already has a page allocated.  Remove the handling of already
allocated pages from block_write_begin after switching all callers that
do it to __block_write_begin.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>