This is a note to let you know that I've just added the patch titled
btrfs: zoned: re-enable metadata over-commit for zoned mode
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
btrfs-zoned-re-enable-metadata-over-commit-for-zoned-mode.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5b135b382a360f4c87cf8896d1465b0b07f10cb0 Mon Sep 17 00:00:00 2001
From: Naohiro Aota <naohiro.aota@xxxxxxx>
Date: Tue, 8 Aug 2023 01:12:40 +0900
Subject: btrfs: zoned: re-enable metadata over-commit for zoned mode
From: Naohiro Aota <naohiro.aota@xxxxxxx>
commit 5b135b382a360f4c87cf8896d1465b0b07f10cb0 upstream.
Now that, we can re-enable metadata over-commit. As we moved the activation
from the reservation time to the write time, we no longer need to ensure
all the reserved bytes is properly activated.
Without the metadata over-commit, it suffers from lower performance because
it needs to flush the delalloc items more often and allocate more block
groups. Re-enabling metadata over-commit will solve the issue.
Fixes: 79417d040f4f ("btrfs: zoned: disable metadata overcommit for zoned")
CC: stable@xxxxxxxxxxxxxxx # 6.1+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
Signed-off-by: Naohiro Aota <naohiro.aota@xxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/space-info.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
--- a/fs/btrfs/space-info.c
+++ b/fs/btrfs/space-info.c
@@ -404,11 +404,7 @@ int btrfs_can_overcommit(struct btrfs_fs
return 0;
used = btrfs_space_info_used(space_info, true);
- if (test_bit(BTRFS_FS_ACTIVE_ZONE_TRACKING, &fs_info->flags) &&
- (space_info->flags & BTRFS_BLOCK_GROUP_METADATA))
- avail = 0;
- else
- avail = calc_available_free_space(fs_info, space_info, flush);
+ avail = calc_available_free_space(fs_info, space_info, flush);
if (used + bytes < writable_total_bytes(fs_info, space_info) + avail)
return 1;
Patches currently in stable-queue which might be from naohiro.aota@xxxxxxx are
queue-6.1/btrfs-zoned-re-enable-metadata-over-commit-for-zoned-mode.patch
queue-6.1/btrfs-zoned-do-not-zone-finish-data-relocation-block-group.patch
