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| author |   Naohiro Aota <naohiro.aota@wdc.com> | 2022-08-31 13:55:48 +0900 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2022-09-05 15:32:21 +0200 |
| commit | d5b81ced74afded85619ffbbe9c32ba9d82c9b1e (patch) | |
| tree | 69a37c31e1956ef64754541e9356e1ee41a1fe81 /fs/btrfs/ctree.h | |
| parent | btrfs: add info when mount fails due to stale replace target (diff) | |
| download | wireguard-linux-d5b81ced74afded85619ffbbe9c32ba9d82c9b1e.tar.xz wireguard-linux-d5b81ced74afded85619ffbbe9c32ba9d82c9b1e.zip | |
btrfs: zoned: fix API misuse of zone finish waiting
The commit 2ce543f47843 ("btrfs: zoned: wait until zone is finished when
allocation didn't progress") implemented a zone finish waiting mechanism
to the write path of zoned mode. However, using
wait_var_event()/wake_up_all() on fs_info->zone_finish_wait is wrong and
wait_var_event() just hangs because no one ever wakes it up once it goes
into sleep.
Instead, we can simply use wait_on_bit_io() and clear_and_wake_up_bit()
on fs_info->flags with a proper barrier installed.
Fixes: 2ce543f47843 ("btrfs: zoned: wait until zone is finished when allocation didn't progress")
CC: stable@vger.kernel.org # 5.16+
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 9ef162dbd4bc..df8c99c99df9 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1088,8 +1088,6 @@ struct btrfs_fs_info { spinlock_t zone_active_bgs_lock; struct list_head zone_active_bgs; - /* Waiters when BTRFS_FS_NEED_ZONE_FINISH is set */ - wait_queue_head_t zone_finish_wait; /* Updates are not protected by any lock */ struct btrfs_commit_stats commit_stats; |