introduce __block_write_begin

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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>

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Christoph Hellwig 2010-06-04 11:29:57 +02:00 • committed by Al Viro

parent f4e420dc42

commit 6e1db88d53

10 changed files with 39 additions and 64 deletions

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include/linux/buffer_head.h

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