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authorBarry Song <21cnbao@gmail.com>2022-02-19 01:27:24 +0300
committerMike Snitzer <snitzer@redhat.com>2022-02-22 21:55:51 +0300
commita6a4901a5ef35070297c769120fea04145df0aaa (patch)
treefa66295eb4231621a0b28c49ee98479441507349 /drivers/md/dm-io.c
parent75274a4bf2da6b17155f8b4e54c4bb3b665c95e3 (diff)
downloadlinux-a6a4901a5ef35070297c769120fea04145df0aaa.tar.xz
dm io: remove stale comment block for dm_io()
Commit 7eaceaccab5f ("block: remove per-queue plugging") dropped unplug_delay and blk_unplug(). Plus, the current kernel has no fundamental difference between sync_io() and async_io() except sync_io() uses sync_io_complete() as the notify.fn and explicitly calls wait_for_completion_io() to sync. The comment isn't valid any more. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Barry Song <song.bao.hua@hisilicon.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-io.c')
-rw-r--r--drivers/md/dm-io.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 23e038f8dc84..32f8f4ed5e0d 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -525,14 +525,6 @@ static int dp_init(struct dm_io_request *io_req, struct dpages *dp,
return 0;
}
-/*
- * New collapsed (a)synchronous interface.
- *
- * If the IO is asynchronous (i.e. it has notify.fn), you must either unplug
- * the queue with blk_unplug() some time later or set REQ_SYNC in
- * io_req->bi_opf. If you fail to do one of these, the IO will be submitted to
- * the disk after q->unplug_delay, which defaults to 3ms in blk-settings.c.
- */
int dm_io(struct dm_io_request *io_req, unsigned num_regions,
struct dm_io_region *where, unsigned long *sync_error_bits)
{