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| author | Chris Mason | 2014-05-20 05:55:27 +0200 |
|---|---|---|
| committer | Chris Mason | 2014-06-10 02:20:56 +0200 |
| commit | 0e378df15cd87f540f1ba9503e4aa039e1c72741 (patch) | |
| tree | 700aee195982d5795f02bdda3038e28c7910484d /fs/btrfs/extent_io.c | |
| parent | Btrfs: break up __btrfs_write_out_cache to cut down stack usage (diff) | |
| download | kernel-qcow2-linux-0e378df15cd87f540f1ba9503e4aa039e1c72741.tar.gz kernel-qcow2-linux-0e378df15cd87f540f1ba9503e4aa039e1c72741.tar.xz kernel-qcow2-linux-0e378df15cd87f540f1ba9503e4aa039e1c72741.zip | |
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>
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -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) |