From e1df36d2f18254d0690a0fbe036cece74ec311b8 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 12 Feb 2009 09:45:08 -0500 Subject: [PATCH] Btrfs: don't clean old snapshots on sync(1) Cleaning old snapshots can make sync(1) somewhat slow, and some users and applications still use it in a global fsync kind of workload. This patch changes btrfs not to clean old snapshots during sync, which is safe from a FS consistency point of view. The major downside is that it makes it difficult to tell when old snapshots have been reaped and the space they were using has been reclaimed. A new ioctl will be added for this purpose instead. Signed-off-by: Chris Mason --- fs/btrfs/super.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 66b8341e2dba..19a4daf03ccb 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -379,7 +379,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait) btrfs_start_delalloc_inodes(root); btrfs_wait_ordered_extents(root, 0); - btrfs_clean_old_snapshots(root); trans = btrfs_start_transaction(root, 1); ret = btrfs_commit_transaction(trans, root); sb->s_dirt = 0;