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| author |   Naohiro Aota <naohiro.aota@wdc.com> | 2021-03-03 17:55:48 +0900 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2021-03-04 16:16:58 +0100 |
| commit | badae9c86979c459bd7d895d6d7ddc7a01131ff7 (patch) | |
| tree | 6b067f50bdc3d6faacead81b56c416da7ef8ebb2 | |
| parent | btrfs: zoned: use sector_t for zone sectors (diff) | |
| download | linux-dev-badae9c86979c459bd7d895d6d7ddc7a01131ff7.tar.xz linux-dev-badae9c86979c459bd7d895d6d7ddc7a01131ff7.zip | |
btrfs: zoned: do not account freed region of read-only block group as zone_unusable
We migrate zone unusable bytes to read-only bytes when a block group is
set to read-only, and account all the free region as bytes_readonly.
Thus, we should not increase block_group->zone_unusable when the block
group is read-only.
Fixes: 169e0da91a21 ("btrfs: zoned: track unusable bytes for zones")
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 711a6a751ae9..9988decd5717 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -2555,7 +2555,12 @@ static int __btrfs_add_free_space_zoned(struct btrfs_block_group *block_group, to_unusable = size - to_free; ctl->free_space += to_free; - block_group->zone_unusable += to_unusable; + /* + * If the block group is read-only, we should account freed space into + * bytes_readonly. + */ + if (!block_group->ro) + block_group->zone_unusable += to_unusable; spin_unlock(&ctl->tree_lock); if (!used) { spin_lock(&block_group->lock); |