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Btrfs: add rw argument to merge_bio_hook()

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We'll want to merge writes so they can fill a full RAID[56] stripe, but
not necessarily reads.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
David Woodhouse
2009-07-15 23:29:37 +01:00
committed by Chris Mason
parent 3c91160808
commit 64a167011b
5 changed files with 11 additions and 11 deletions
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2
fs/btrfs/extent_io.h
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@@ -72,7 +72,7 @@ struct extent_io_ops {
int (*writepage_start_hook)(struct page *page, u64 start, u64 end);
int (*writepage_io_hook)(struct page *page, u64 start, u64 end);
extent_submit_bio_hook_t *submit_bio_hook;
int (*merge_bio_hook)(struct page *page, unsigned long offset,
int (*merge_bio_hook)(int rw, struct page *page, unsigned long offset,
size_t size, struct bio *bio,
unsigned long bio_flags);
int (*readpage_io_hook)(struct page *page, u64 start, u64 end);