diff options
| author | Filipe Manana <fdmanana@suse.com> | 2024-01-25 12:53:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-23 11:24:47 +0300 |
| commit | e97ebc2a8c8ea1bd08ae3664925d04fed64e8b58 (patch) | |
| tree | 65d121f2575c47cedc3342e718b617d010d4c32e /fs/btrfs | |
| parent | f328d96d6b38769f00745c8066f994338eabfed4 (diff) | |
| download | linux-e97ebc2a8c8ea1bd08ae3664925d04fed64e8b58.tar.xz | |
btrfs: add and use helper to check if block group is used
commit 1693d5442c458ae8d5b0d58463b873cd879569ed upstream.
Add a helper function to determine if a block group is being used and make
use of it at btrfs_delete_unused_bgs(). This helper will also be used in
future code changes.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Boris Burkov <boris@bur.io>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/block-group.c | 3 | ||||
| -rw-r--r-- | fs/btrfs/block-group.h | 7 |
2 files changed, 8 insertions, 2 deletions
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c index 5a97db988810..b152c1b1913f 100644 --- a/fs/btrfs/block-group.c +++ b/fs/btrfs/block-group.c @@ -1524,8 +1524,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info) } spin_lock(&block_group->lock); - if (block_group->reserved || block_group->pinned || - block_group->used || block_group->ro || + if (btrfs_is_block_group_used(block_group) || block_group->ro || list_is_singular(&block_group->list)) { /* * We want to bail if we made new allocations or have diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h index 2bdbcb834f95..089979981e4a 100644 --- a/fs/btrfs/block-group.h +++ b/fs/btrfs/block-group.h @@ -255,6 +255,13 @@ static inline u64 btrfs_block_group_end(struct btrfs_block_group *block_group) return (block_group->start + block_group->length); } +static inline bool btrfs_is_block_group_used(const struct btrfs_block_group *bg) +{ + lockdep_assert_held(&bg->lock); + + return (bg->used > 0 || bg->reserved > 0 || bg->pinned > 0); +} + static inline bool btrfs_is_block_group_data_only( struct btrfs_block_group *block_group) { |