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-rw-r--r--fs/btrfs/extent_io.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index ff182322d112..dc81868d975a 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -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_failed_hook)(struct page *page, int failed_mirror);