From: Byongho Lee Date: Fri, 10 Jul 2015 04:10:26 +0000 (+0900) Subject: Btrfs: remove unused mutex from struct 'btrfs_fs_info' X-Git-Tag: v4.3-rc1~72^2~9 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a4027a20c57a2c8779e17a61425737634bb7163d;p=karo-tx-linux.git Btrfs: remove unused mutex from struct 'btrfs_fs_info' The code using 'ordered_extent_flush_mutex' mutex has removed by below commit. - 8d875f95da43c6a8f18f77869f2ef26e9594fecc 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: Byongho Lee Reviewed-by: David Sterba Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index f335c18bd263..d4042c89d29b 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -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; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index e49ae5ea9040..f7536bcf7cee 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -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);