btrfs: fix dirty_metadata_bytes for redirtied buffers

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commit f18cc97845 upstream.

dirty_metadata_bytes is decremented in both places that clear the dirty
bit in a buffer, but only incremented in btrfs_mark_buffer_dirty, which
means that a buffer that is redirtied using btrfs_redirty_list_add won't
be added to dirty_metadata_bytes, but it will be subtracted when written
out, leading an inconsistency in the counter.

Move the dirty_metadata_bytes from btrfs_mark_buffer_dirty into
set_extent_buffer_dirty to also account for the redirty case, and remove
the now unused set_extent_buffer_dirty return value.

Fixes: d3575156f6 ("btrfs: zoned: redirty released extent buffers")
CC: stable@vger.kernel.org # 5.15+
Reviewed-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

Christoph Hellwig 2023-05-08 07:58:38 -07:00 • committed by Greg Kroah-Hartman

parent 1b532748ba

commit 1ea89213cd

3 changed files with 6 additions and 10 deletions

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7

fs/btrfs/disk-io.c

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7

fs/btrfs/extent_io.c

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2

fs/btrfs/extent_io.h

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