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Commit a4027a20 authored by Byongho Lee's avatar Byongho Lee Committed by Chris Mason
Browse files

Btrfs: remove unused mutex from struct 'btrfs_fs_info' 



The code using 'ordered_extent_flush_mutex' mutex has removed by below
commit.
 - 8d875f95
   btrfs: disable strict file flushes for renames and truncates
But the mutex still lives in struct 'btrfs_fs_info'.

So, this patch removes the mutex from struct 'btrfs_fs_info' and its
initialization code.

Signed-off-by: default avatarByongho Lee <bhlee.kernel@gmail.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent 4a770891

fs/btrfs/ctree.h

+0 −6
Original line number Diff line number Diff line
@@ -1518,12 +1518,6 @@ struct btrfs_fs_info { 
	 */

	struct mutex ordered_operations_mutex;



	/*

	 * Same as ordered_operations_mutex except this is for ordered extents

	 * and not the operations.

	 */

	struct mutex ordered_extent_flush_mutex;



	struct rw_semaphore commit_root_sem;



	struct rw_semaphore cleanup_work_sem;

fs/btrfs/disk-io.c

+0 −1
Original line number Diff line number Diff line
@@ -2608,7 +2608,6 @@ int open_ctree(struct super_block *sb, 




	mutex_init(&fs_info->ordered_operations_mutex);

	mutex_init(&fs_info->ordered_extent_flush_mutex);

	mutex_init(&fs_info->tree_log_mutex);

	mutex_init(&fs_info->chunk_mutex);

	mutex_init(&fs_info->transaction_kthread_mutex);