diff options
| author | Chris Mason <clm@fb.com> | 2014-05-19 20:55:27 -0700 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-06-09 17:20:56 -0700 |
| commit | 0e378df15cd87f540f1ba9503e4aa039e1c72741 (patch) | |
| tree | 700aee195982d5795f02bdda3038e28c7910484d | |
| parent | d4452bc526c431a882cc6ba854619e166cb7dfe4 (diff) | |
Btrfs: cut down stack usage in btree_write_cache_pages
This adds noinline_for_stack to two helpers used by
btree_write_cache_pages. It shaves us down from 424 bytes on the
stack to 280.
Signed-off-by: Chris Mason <clm@fb.com>
| -rw-r--r-- | fs/btrfs/extent_io.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 0f425dea4523..51299c261d56 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3393,9 +3393,10 @@ void wait_on_extent_buffer_writeback(struct extent_buffer *eb) TASK_UNINTERRUPTIBLE); } -static int lock_extent_buffer_for_io(struct extent_buffer *eb, - struct btrfs_fs_info *fs_info, - struct extent_page_data *epd) +static noinline_for_stack int +lock_extent_buffer_for_io(struct extent_buffer *eb, + struct btrfs_fs_info *fs_info, + struct extent_page_data *epd) { unsigned long i, num_pages; int flush = 0; @@ -3500,7 +3501,7 @@ static void end_bio_extent_buffer_writepage(struct bio *bio, int err) bio_put(bio); } -static int write_one_eb(struct extent_buffer *eb, +static noinline_for_stack int write_one_eb(struct extent_buffer *eb, struct btrfs_fs_info *fs_info, struct writeback_control *wbc, struct extent_page_data *epd) |