diff options
| author | Josef Bacik <josef@toxicpanda.com> | 2020-01-24 09:33:00 -0500 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-03-23 17:01:33 +0100 |
| commit | bd647ce385ec110fe7796267b6555873e48e44eb (patch) | |
| tree | 602f2951852f058de5c5debfb4f293f67cec8115 /fs/btrfs/disk-io.h | |
| parent | 8260edba67a2e6bd5e709d32188e23aa22cb4a38 (diff) | |
| download | linux-bd647ce385ec110fe7796267b6555873e48e44eb.tar.gz | |
btrfs: add a leak check for roots
Now that we're going to start relying on getting ref counting right for roots, add a list to track allocated roots and print out any roots that aren't freed up at free_fs_info time. Hide this behind CONFIG_BTRFS_DEBUG because this will just be used for developers to verify they aren't breaking things. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/disk-io.h')
| -rw-r--r-- | fs/btrfs/disk-io.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index 2414d572bc9a..04a29f961527 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -39,6 +39,7 @@ static inline u64 btrfs_sb_offset(int mirror) struct btrfs_device; struct btrfs_fs_devices; +void btrfs_check_leaked_roots(struct btrfs_fs_info *fs_info); void btrfs_init_fs_info(struct btrfs_fs_info *fs_info); int btrfs_verify_level_key(struct extent_buffer *eb, int level, struct btrfs_key *first_key, u64 parent_transid); @@ -101,8 +102,14 @@ static inline void btrfs_put_fs_root(struct btrfs_root *root) { if (!root) return; - if (refcount_dec_and_test(&root->refs)) + if (refcount_dec_and_test(&root->refs)) { +#ifdef CONFIG_BTRFS_DEBUG + spin_lock(&root->fs_info->fs_roots_radix_lock); + list_del_init(&root->leak_list); + spin_unlock(&root->fs_info->fs_roots_radix_lock); +#endif kfree(root); + } } void btrfs_mark_buffer_dirty(struct extent_buffer *buf); |