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btrfs: zoned: finish block group when there are no more allocatable bytes left 

Currently, btrfs_zone_finish_endio() finishes a block group only when the
written region reaches the end of the block group. We can also finish the
block group when no more allocation is possible.

Fixes: be1a1d7a5d ("btrfs: zoned: finish fully written block group")
CC: stable@vger.kernel.org # 5.16+
Reviewed-by: Pankaj Raghav <p.raghav@samsung.com>
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>
This commit is contained in:
Naohiro Aota 2022-05-03 17:48:52 -07:00 committed by David Sterba
parent d70cbdda75
commit 8b8a53998c
1 changed files with 10 additions and 1 deletions
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11
fs/btrfs/zoned.c
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@ -2021,6 +2021,7 @@ bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags)
void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, u64 logical, u64 length)
{
struct btrfs_block_group *block_group;
u64 min_alloc_bytes;
if (!btrfs_is_zoned(fs_info))
return;
@ -2028,7 +2029,15 @@ void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, u64 logical, u64 len
block_group = btrfs_lookup_block_group(fs_info, logical);
ASSERT(block_group);
if (logical + length < block_group->start + block_group->zone_capacity)
/* No MIXED_BG on zoned btrfs. */
if (block_group->flags & BTRFS_BLOCK_GROUP_DATA)
min_alloc_bytes = fs_info->sectorsize;
else
min_alloc_bytes = fs_info->nodesize;
/* Bail out if we can allocate more data from this block group. */
if (logical + length + min_alloc_bytes <=
block_group->start + block_group->zone_capacity)
goto out;
do_zone_finish(block_group, true);