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btrfs: zoned: don't activate non-DATA BG on allocation

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Now that a non-DATA block group is activated at write time, don't
activate it on allocation time.

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 2023-08-08 01:12:39 +09:00 committed by David Sterba
parent 6a8ebc773e
commit 5a7d107e5e
3 changed files with 8 additions and 30 deletions
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2
fs/btrfs/block-group.c
View file

@ -4089,7 +4089,7 @@ int btrfs_chunk_alloc(struct btrfs_trans_handle *trans, u64 flags,
if (IS_ERR(ret_bg)) {
ret = PTR_ERR(ret_bg);
} else if (from_extent_allocation) {
} else if (from_extent_allocation && (flags & BTRFS_BLOCK_GROUP_DATA)) {
/*
* New block group is likely to be used soon. Try to activate
* it now. Failure is OK for now.

8
fs/btrfs/extent-tree.c
View file

@ -3690,7 +3690,9 @@ static int do_allocation_zoned(struct btrfs_block_group *block_group,
}
spin_unlock(&block_group->lock);
if (!ret && !btrfs_zone_activate(block_group)) {
/* Metadata block group is activated at write time. */
if (!ret && (block_group->flags & BTRFS_BLOCK_GROUP_DATA) &&
!btrfs_zone_activate(block_group)) {
ret = 1;
/*
* May need to clear fs_info->{treelog,data_reloc}_bg.
@ -3866,6 +3868,10 @@ static void found_extent(struct find_free_extent_ctl *ffe_ctl,
static int can_allocate_chunk_zoned(struct btrfs_fs_info *fs_info,
struct find_free_extent_ctl *ffe_ctl)
{
/* Block group's activeness is not a requirement for METADATA block groups. */
if (!(ffe_ctl->flags & BTRFS_BLOCK_GROUP_DATA))
return 0;
/* If we can activate new zone, just allocate a chunk and use it */
if (btrfs_can_activate_zone(fs_info->fs_devices, ffe_ctl->flags))
return 0;

28
fs/btrfs/space-info.c
View file

@ -761,18 +761,6 @@ static void flush_space(struct btrfs_fs_info *fs_info,
break;
case ALLOC_CHUNK:
case ALLOC_CHUNK_FORCE:
/*
* For metadata space on zoned filesystem, reaching here means we
* don't have enough space left in active_total_bytes. Try to
* activate a block group first, because we may have inactive
* block group already allocated.
*/
ret = btrfs_zoned_activate_one_bg(fs_info, space_info, false);
if (ret < 0)
break;
else if (ret == 1)
break;
trans = btrfs_join_transaction(root);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);
@ -784,22 +772,6 @@ static void flush_space(struct btrfs_fs_info *fs_info,
CHUNK_ALLOC_FORCE);
btrfs_end_transaction(trans);
/*
* For metadata space on zoned filesystem, allocating a new chunk
* is not enough. We still need to activate the block * group.
* Active the newly allocated block group by (maybe) finishing
* a block group.
*/
if (ret == 1) {
ret = btrfs_zoned_activate_one_bg(fs_info, space_info, true);
/*
* Revert to the original ret regardless we could finish
* one block group or not.
*/
if (ret >= 0)
ret = 1;
}
if (ret > 0 || ret == -ENOSPC)
ret = 0;
break;