diff options
| author | David Sterba <dsterba@suse.com> | 2018-03-01 18:20:27 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-08-06 13:12:44 +0200 |
| commit | cc5e31a4775d0d6b98139fdee51868a270bda42f (patch) | |
| tree | 3ac26d8b0b1a020ca417c61c37b910cd7ca39e09 /fs/btrfs/extent_io.h | |
| parent | 8791d43207966f40d8ffba18c663514aca5a6f3e (diff) | |
| download | linux-cc5e31a4775d0d6b98139fdee51868a270bda42f.tar.bz2 | |
btrfs: switch types to int when counting eb pages
The loops iterating eb pages use unsigned long, that's an overkill as
we know that there are at most 16 pages (64k / 4k), and 4 by default
(with nodesize 16k).
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
| -rw-r--r-- | fs/btrfs/extent_io.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 7a3c15b55f2b..48f1ee9ad379 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -440,7 +440,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree, int mirror_num); void wait_on_extent_buffer_writeback(struct extent_buffer *eb); -static inline unsigned long num_extent_pages(const struct extent_buffer *eb) +static inline int num_extent_pages(const struct extent_buffer *eb) { return (round_up(eb->start + eb->len, PAGE_SIZE) >> PAGE_SHIFT) - (eb->start >> PAGE_SHIFT); |