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| author |   Omar Sandoval <osandov@fb.com> | 2016-09-22 17:24:21 -0700 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2016-10-03 18:52:14 +0200 |
| commit | f8d468a15c22b954b379aa0c74914d5068448fb1 (patch) | |
| tree | a8da56fb110420e2d352fd244f63210db85f782b /fs/btrfs | |
| parent | Btrfs: fix free space tree bitmaps on big-endian systems (diff) | |
| download | linux-dev-f8d468a15c22b954b379aa0c74914d5068448fb1.tar.xz linux-dev-f8d468a15c22b954b379aa0c74914d5068448fb1.zip | |
Btrfs: fix mount -o clear_cache,space_cache=v2
We moved the code for creating the free space tree the first time that
it's enabled, but didn't move the clearing code along with it. This
breaks my (undocumented) intention that `mount -o
clear_cache,space_cache=v2` would clear the free space tree and then
recreate it.
Fixes: 511711af91f2 ("btrfs: don't run delayed references while we are creating the free space tree")
Cc: stable@vger.kernel.org # 4.5+
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/disk-io.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 54bc8c7c6bcd..c0bfc6ce5f06 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3129,6 +3129,18 @@ retry_root_backup: if (sb->s_flags & MS_RDONLY) return 0; + if (btrfs_test_opt(fs_info, CLEAR_CACHE) && + btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) { + btrfs_info(fs_info, "clearing free space tree"); + ret = btrfs_clear_free_space_tree(fs_info); + if (ret) { + btrfs_warn(fs_info, + "failed to clear free space tree: %d", ret); + close_ctree(tree_root); + return ret; + } + } + if (btrfs_test_opt(tree_root->fs_info, FREE_SPACE_TREE) && !btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) { btrfs_info(fs_info, "creating free space tree"); @@ -3166,18 +3178,6 @@ retry_root_backup: btrfs_qgroup_rescan_resume(fs_info); - if (btrfs_test_opt(tree_root->fs_info, CLEAR_CACHE) && - btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) { - btrfs_info(fs_info, "clearing free space tree"); - ret = btrfs_clear_free_space_tree(fs_info); - if (ret) { - btrfs_warn(fs_info, - "failed to clear free space tree: %d", ret); - close_ctree(tree_root); - return ret; - } - } - if (!fs_info->uuid_root) { btrfs_info(fs_info, "creating UUID tree"); ret = btrfs_create_uuid_tree(fs_info); |