From: Miao Xie Date: Wed, 15 May 2013 07:48:25 +0000 (+0000) Subject: Btrfs: cleanup unnecessary assignment when cleaning up all the residual transaction X-Git-Tag: upstream/snapshot3+hdmi~4759^2~57 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ac6738792fe4478df2da9c1f41e3540e9ef79604;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git Btrfs: cleanup unnecessary assignment when cleaning up all the residual transaction When we umount a fs with serious errors, we will invoke btrfs_cleanup_transactions() to clean up the residual transaction. At this time, It is impossible to start a new transaction, so we needn't assign trans_no_join to 1, and also needn't clear running transaction every time we destroy a residual transaction. Signed-off-by: Miao Xie Signed-off-by: Josef Bacik --- diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 0f87387..885245f 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3994,7 +3994,7 @@ static int btrfs_cleanup_transaction(struct btrfs_root *root) spin_lock(&root->fs_info->trans_lock); list_splice_init(&root->fs_info->trans_list, &list); - root->fs_info->trans_no_join = 1; + root->fs_info->running_transaction = NULL; spin_unlock(&root->fs_info->trans_lock); while (!list_empty(&list)) { @@ -4030,10 +4030,6 @@ static int btrfs_cleanup_transaction(struct btrfs_root *root) btrfs_destroy_all_delalloc_inodes(root->fs_info); - spin_lock(&root->fs_info->trans_lock); - root->fs_info->running_transaction = NULL; - spin_unlock(&root->fs_info->trans_lock); - btrfs_destroy_marked_extents(root, &t->dirty_pages, EXTENT_DIRTY); @@ -4046,9 +4042,6 @@ static int btrfs_cleanup_transaction(struct btrfs_root *root) kmem_cache_free(btrfs_transaction_cachep, t); } - spin_lock(&root->fs_info->trans_lock); - root->fs_info->trans_no_join = 0; - spin_unlock(&root->fs_info->trans_lock); mutex_unlock(&root->fs_info->transaction_kthread_mutex); return 0;