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| author | Christoph Hellwig <hch@lst.de> | 2010-06-04 11:29:57 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-08-09 16:47:32 -0400 |
| commit | 6e1db88d536adcbbfe562b2d4b7d6425784fff12 (patch) | |
| tree | 8cfcb5a6190722db6249b2e4978f39247975abcf /include/linux/buffer_head.h | |
| parent | f4e420dc423148fba637af1ab618fa8896dfb2d6 (diff) | |
| download | lwn-6e1db88d536adcbbfe562b2d4b7d6425784fff12.tar.gz lwn-6e1db88d536adcbbfe562b2d4b7d6425784fff12.zip | |
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>
Diffstat (limited to 'include/linux/buffer_head.h')
| -rw-r--r-- | include/linux/buffer_head.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index 7638647f0424..accc9f81bb63 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -209,6 +209,8 @@ int block_write_begin_newtrunc(struct file *, struct address_space *, int block_write_begin(struct file *, struct address_space *, loff_t, unsigned, unsigned, struct page **, void **, get_block_t*); +int __block_write_begin(struct page *page, loff_t pos, unsigned len, + get_block_t *get_block); int block_write_end(struct file *, struct address_space *, loff_t, unsigned, unsigned, struct page *, void *); |