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btrfs: zoned: put block group after final usage

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commit d3e2996707 upstream.

It's counter-intuitive (and wrong) to put the block group _before_ the
final usage in submit_eb_page. Fix it by re-ordering the call to
btrfs_put_block_group after its final reference. Also fix a minor typo
in 'implies'

Fixes: be1a1d7a5d ("btrfs: zoned: finish fully written block group")
CC: stable@vger.kernel.org # 5.16+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nikolay Borisov 2022-03-07 15:30:02 +02:00 committed by Greg Kroah-Hartman
parent 9f65b725f7
commit ea1e3fbb68
1 changed files with 4 additions and 3 deletions
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7
fs/btrfs/extent_io.c
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@ -4780,11 +4780,12 @@ static int submit_eb_page(struct page *page, struct writeback_control *wbc,
return ret;
}
if (cache) {
/* Impiles write in zoned mode */
btrfs_put_block_group(cache);
/* Mark the last eb in a block group */
/*
* Implies write in zoned mode. Mark the last eb in a block group.
*/
if (cache->seq_zone && eb->start + eb->len == cache->zone_capacity)
set_bit(EXTENT_BUFFER_ZONE_FINISH, &eb->bflags);
btrfs_put_block_group(cache);
}
ret = write_one_eb(eb, wbc, epd);
free_extent_buffer(eb);