btrfs: zoned: wait until zone is finished when allocation didn't progress

Browse source

When the allocated position doesn't progress, we cannot submit IOs to
finish a block group, but there should be ongoing IOs that will finish a
block group. So, in that case, we wait for a zone to be finished and retry
the allocation after that.

Introduce a new flag BTRFS_FS_NEED_ZONE_FINISH for fs_info->flags to
indicate we need a zone finish to have proceeded. The flag is set when the
allocator detected it cannot activate a new block group. And, it is cleared
once a zone is finished.

CC: stable@vger.kernel.org # 5.16+
Fixes: afba2bc036 ("btrfs: zoned: implement active zone tracking")
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>

...

This commit is contained in:

Naohiro Aota 2022-07-09 08:18:50 +09:00 • committed by David Sterba

parent 898793d992

commit 2ce543f478

4 changed files with 19 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

5

fs/btrfs/ctree.h

View file

1

fs/btrfs/disk-io.c

View file

9

fs/btrfs/inode.c

View file

6

fs/btrfs/zoned.c

View file