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authorChris Mason <chris.mason@oracle.com>2008-07-17 12:53:51 -0400
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:04:04 -0400
commit247e743cbe6e655768c3679f84821e03c1577902 (patch)
treeedc2b27284365f019859a936885bd100960eb659 /fs/btrfs/extent_io.h
parente6dcd2dc9c489108648e2ed543315dd134d50a9a (diff)
Btrfs: Use async helpers to deal with pages that have been improperly dirtied
Higher layers sometimes call set_page_dirty without asking the filesystem to help. This causes many problems for the data=ordered and cow code. This commit detects pages that haven't been properly setup for IO and kicks off an async helper to deal with them. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
-rw-r--r--fs/btrfs/extent_io.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 2268a799589..23affd27af5 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -30,6 +30,7 @@ typedef int (extent_submit_bio_hook_t)(struct inode *inode, int rw,
struct bio *bio, int mirror_num);
struct extent_io_ops {
int (*fill_delalloc)(struct inode *inode, u64 start, u64 end);
+ 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,