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authorJeff Mahoney <jeffm@suse.de>2011-07-21 16:56:09 +0000
committerChris Mason <chris.mason@oracle.com>2011-08-01 14:30:43 -0400
commit1bf85046e493c88be1c1bad9084428373089f618 (patch)
treee7358cb2dd597c8be7001be4573fa0e53361ebb5 /fs/btrfs/extent_io.h
parentb6973aa62253f3791ef6fa5e9f9de099645fc2bd (diff)
btrfs: Make extent-io callbacks that never fail return void
The set/clear bit and the extent split/merge hooks only ever return 0. Changing them to return void simplifies the error handling cases later. This patch changes the hook prototypes, the single implementation of each, and the functions that call them to return void instead. Since all four of these hooks execute under a spinlock, they're necessarily simple. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
-rw-r--r--fs/btrfs/extent_io.h18
1 files changed, 9 insertions, 9 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 21a7ca9e728..d6871dc7524 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -76,15 +76,15 @@ struct extent_io_ops {
struct extent_state *state);
int (*writepage_end_io_hook)(struct page *page, u64 start, u64 end,
struct extent_state *state, int uptodate);
- int (*set_bit_hook)(struct inode *inode, struct extent_state *state,
- int *bits);
- int (*clear_bit_hook)(struct inode *inode, struct extent_state *state,
- int *bits);
- int (*merge_extent_hook)(struct inode *inode,
- struct extent_state *new,
- struct extent_state *other);
- int (*split_extent_hook)(struct inode *inode,
- struct extent_state *orig, u64 split);
+ void (*set_bit_hook)(struct inode *inode, struct extent_state *state,
+ int *bits);
+ void (*clear_bit_hook)(struct inode *inode, struct extent_state *state,
+ int *bits);
+ void (*merge_extent_hook)(struct inode *inode,
+ struct extent_state *new,
+ struct extent_state *other);
+ void (*split_extent_hook)(struct inode *inode,
+ struct extent_state *orig, u64 split);
int (*write_cache_pages_lock_hook)(struct page *page);
};