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authorFilipe Manana <fdmanana@gmail.com>2014-06-16 13:14:25 +0100
committerChris Mason <clm@fb.com>2014-06-19 14:20:28 -0700
commit46fefe41b5360106ebfed228fbfba62f75ad4fcd (patch)
treee65c78647a1e9df042a0210b18ff53cbb1daab2f /fs
parentea4ebde02e08558b020c4b61bb9a4c0fcf63028e (diff)
downloadop-kernel-dev-46fefe41b5360106ebfed228fbfba62f75ad4fcd.zip
op-kernel-dev-46fefe41b5360106ebfed228fbfba62f75ad4fcd.tar.gz
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>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/extent_io.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 15ce5f2..ccc264e 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;
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