diff options
| author | Robin Dong <sanbai@taobao.com> | 2012-09-29 02:07:47 -0600 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2012-10-09 09:15:43 -0400 |
| commit | 479ed9abdbeec5d9ed0005f3bee9c9bc06a102bb (patch) | |
| tree | 11fccd8b9dccb61c64dd7901c03230671e5b0aac /fs/btrfs/extent_io.h | |
| parent | 7a2d6a64645b38d7040bbd031c7a7b2655f5d976 (diff) | |
btrfs: move inline function code to header file
When building btrfs from kernel code, it will report:
fs/btrfs/extent_io.h:281: warning: 'extent_buffer_page' declared inline after being called
fs/btrfs/extent_io.h:281: warning: previous declaration of 'extent_buffer_page' was here
fs/btrfs/extent_io.h:280: warning: 'num_extent_pages' declared inline after being called
fs/btrfs/extent_io.h:280: warning: previous declaration of 'num_extent_pages' was here
because of the wrong declaration of inline functions.
Signed-off-by: Robin Dong <sanbai@taobao.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
| -rw-r--r-- | fs/btrfs/extent_io.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 7aeb31087f8..711d12b8002 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -282,8 +282,18 @@ void free_extent_buffer_stale(struct extent_buffer *eb); int read_extent_buffer_pages(struct extent_io_tree *tree, struct extent_buffer *eb, u64 start, int wait, get_extent_t *get_extent, int mirror_num); -unsigned long num_extent_pages(u64 start, u64 len); -struct page *extent_buffer_page(struct extent_buffer *eb, unsigned long i); + +static inline unsigned long num_extent_pages(u64 start, u64 len) +{ + return ((start + len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT) - + (start >> PAGE_CACHE_SHIFT); +} + +static inline struct page *extent_buffer_page(struct extent_buffer *eb, + unsigned long i) +{ + return eb->pages[i]; +} static inline void extent_buffer_get(struct extent_buffer *eb) { |