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authorJeff Mahoney <jeffm@suse.com>2016-08-17 21:58:33 -0400
committerChris Mason <clm@fb.com>2016-08-25 03:58:29 -0700
commit35bbb97fc898aeb874cb7c8b746f091caa359994 (patch)
tree4ff7e4a0ac701e26985efb0d24c0ea3665791ffc /fs/btrfs/disk-io.h
parent187ee58c62c1d0d238d3dc4835869d33e1869906 (diff)
downloadlinux-35bbb97fc898aeb874cb7c8b746f091caa359994.tar.bz2
btrfs: don't create or leak aliased root while cleaning up orphans
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>
Diffstat (limited to 'fs/btrfs/disk-io.h')
-rw-r--r--fs/btrfs/disk-io.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index c9d42c92da2b..e0efe45e5282 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);