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xfs: refactor zone reset handling

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Include the actual bio submission in the common zone reset handler to
share more code and prepare for adding error injection for zone reset.

Note the I plan to refactor the block layer submit_bio_wait and
bio_await_chain code in the next merge window to remove some of the
code duplication added here.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Hans Holmberg <hans.holmberg@wdc.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
This commit is contained in:
Christoph Hellwig 2026-01-30 06:19:23 +01:00 • committed by Carlos Maiolino
parent 32ae9b893a
commit 06873dbd94
1 changed files with 28 additions and 21 deletions
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49
fs/xfs/xfs_zone_gc.c
View file

@ -893,40 +893,55 @@ out:
bio_put(&chunk->bio);
}
static bool
xfs_zone_gc_prepare_reset(
struct bio *bio,
struct xfs_rtgroup *rtg)
static void
xfs_submit_zone_reset_bio(
struct xfs_rtgroup *rtg,
struct bio *bio)
{
trace_xfs_zone_reset(rtg);
ASSERT(rtg_rmap(rtg)->i_used_blocks == 0);
bio->bi_iter.bi_sector = xfs_gbno_to_daddr(&rtg->rtg_group, 0);
if (!bdev_zone_is_seq(bio->bi_bdev, bio->bi_iter.bi_sector)) {
if (!bdev_max_discard_sectors(bio->bi_bdev))
return false;
/*
* Also use the bio to drive the state machine when neither
* zone reset nor discard is supported to keep things simple.
*/
if (!bdev_max_discard_sectors(bio->bi_bdev)) {
bio_endio(bio);
return;
}
bio->bi_opf &= ~REQ_OP_ZONE_RESET;
bio->bi_opf |= REQ_OP_DISCARD;
bio->bi_iter.bi_size =
XFS_FSB_TO_B(rtg_mount(rtg), rtg_blocks(rtg));
}
return true;
submit_bio(bio);
}
static void xfs_bio_wait_endio(struct bio *bio)
{
complete(bio->bi_private);
}
int
xfs_zone_gc_reset_sync(
struct xfs_rtgroup *rtg)
{
int error = 0;
DECLARE_COMPLETION_ONSTACK(done);
struct bio bio;
int error;
bio_init(&bio, rtg_mount(rtg)->m_rtdev_targp->bt_bdev, NULL, 0,
REQ_OP_ZONE_RESET);
if (xfs_zone_gc_prepare_reset(&bio, rtg))
error = submit_bio_wait(&bio);
bio_uninit(&bio);
REQ_OP_ZONE_RESET | REQ_SYNC);
bio.bi_private = &done;
bio.bi_end_io = xfs_bio_wait_endio;
xfs_submit_zone_reset_bio(rtg, &bio);
wait_for_completion_io(&done);
error = blk_status_to_errno(bio.bi_status);
bio_uninit(&bio);
return error;
}
@ -961,15 +976,7 @@ xfs_zone_gc_reset_zones(
chunk->data = data;
WRITE_ONCE(chunk->state, XFS_GC_BIO_NEW);
list_add_tail(&chunk->entry, &data->resetting);
/*
* Also use the bio to drive the state machine when neither
* zone reset nor discard is supported to keep things simple.
*/
if (xfs_zone_gc_prepare_reset(bio, rtg))
submit_bio(bio);
else
bio_endio(bio);
xfs_submit_zone_reset_bio(rtg, bio);
} while (next);
}