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author | Jeff Mahoney <jeffm@suse.com> | 2016-08-18 04:58:33 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-10 18:41:36 +0300 |
commit | c1504091b9805d131abb36a1f01af7a5c99ac9fc (patch) | |
tree | e4571e5e4cc5699f2f42bf690155328386f5fb9a /fs/btrfs/disk-io.h | |
parent | 137b1ce318f0bd9847f68520cfd68c24e79ea258 (diff) | |
download | linux-c1504091b9805d131abb36a1f01af7a5c99ac9fc.tar.xz |
btrfs: don't create or leak aliased root while cleaning up orphans
[ Upstream commit 35bbb97fc898aeb874cb7c8b746f091caa359994 ]
commit 909c3a22da3 (Btrfs: fix loading of orphan roots leading to BUG_ON)
avoids the BUG_ON but can add an aliased root to the dead_roots list or
leak the root.
Since we've already been loading roots into the radix tree, we should
use it before looking the root up on disk.
Cc: <stable@vger.kernel.org> # 4.5
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/btrfs/disk-io.h')
-rw-r--r-- | fs/btrfs/disk-io.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index adeb31830b9c..3c9819403487 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -68,6 +68,8 @@ struct extent_buffer *btrfs_find_tree_block(struct btrfs_fs_info *fs_info, struct btrfs_root *btrfs_read_fs_root(struct btrfs_root *tree_root, struct btrfs_key *location); int btrfs_init_fs_root(struct btrfs_root *root); +struct btrfs_root *btrfs_lookup_fs_root(struct btrfs_fs_info *fs_info, + u64 root_id); int btrfs_insert_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root); void btrfs_free_fs_roots(struct btrfs_fs_info *fs_info); |