diff options
| author | Chris Mason <chris.mason@oracle.com> | 2008-08-01 13:11:41 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:06 -0400 |
| commit | 18e35e0ab337ec99c7e03e9ae917745a352c0bb1 (patch) | |
| tree | b262ecafb28e5a3e533cae2aa46214bf813bdb2b /fs/btrfs/extent-tree.c | |
| parent | f87f057b49ee52cf5c627ab27a706e3252767c9f (diff) | |
| download | lwn-18e35e0ab337ec99c7e03e9ae917745a352c0bb1.tar.gz lwn-18e35e0ab337ec99c7e03e9ae917745a352c0bb1.zip | |
Btrfs: Throttle less often waiting for snapshots to delete
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 58bceeeda9c5..74bcd48a9c43 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2535,6 +2535,10 @@ static int noinline walk_down_tree(struct btrfs_trans_handle *trans, root_gen, 0, 0, 1); BUG_ON(ret); mutex_unlock(&root->fs_info->alloc_mutex); + + atomic_inc(&root->fs_info->throttle_gen); + wake_up(&root->fs_info->transaction_throttle); + continue; } /* @@ -2603,7 +2607,6 @@ out: root_owner = btrfs_header_owner(parent); root_gen = btrfs_header_generation(parent); - mutex_lock(&root->fs_info->alloc_mutex); ret = __btrfs_free_extent(trans, root, bytenr, blocksize, root_owner, root_gen, 0, 0, 1); @@ -2726,7 +2729,6 @@ int btrfs_drop_snapshot(struct btrfs_trans_handle *trans, struct btrfs_root } } while(1) { - atomic_inc(&root->fs_info->throttle_gen); wret = walk_down_tree(trans, root, path, &level); if (wret > 0) break; @@ -2742,6 +2744,7 @@ int btrfs_drop_snapshot(struct btrfs_trans_handle *trans, struct btrfs_root ret = -EAGAIN; break; } + atomic_inc(&root->fs_info->throttle_gen); wake_up(&root->fs_info->transaction_throttle); } for (i = 0; i <= orig_level; i++) { |