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| author | Filipe Manana <fdmanana@gmail.com> | 2014-06-16 14:14:25 +0200 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-06-19 23:20:28 +0200 |
| commit | 46fefe41b5360106ebfed228fbfba62f75ad4fcd (patch) | |
| tree | e65c78647a1e9df042a0210b18ff53cbb1daab2f | |
| parent | Btrfs: fix deadlocks with trylock on tree nodes (diff) | |
| download | linux-46fefe41b5360106ebfed228fbfba62f75ad4fcd.tar.xz linux-46fefe41b5360106ebfed228fbfba62f75ad4fcd.zip | |
Btrfs: remove unused wait queue in struct extent_buffer
The lock_wq wait queue is not used anywhere, therefore just remove it.
On a x86_64 system, this reduced sizeof(struct extent_buffer) from 320
bytes down to 296 bytes, which means a 4Kb page can now be used for
13 extent buffers instead of 12.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
| -rw-r--r-- | fs/btrfs/extent_io.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 15ce5f2a2b62..ccc264e7bde1 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -158,7 +158,6 @@ struct extent_buffer { * to unlock */ wait_queue_head_t read_lock_wq; - wait_queue_head_t lock_wq; struct page *pages[INLINE_EXTENT_BUFFER_PAGES]; #ifdef CONFIG_BTRFS_DEBUG struct list_head leak_list; |