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dm mpath: move dm_bio_restore out of endio method

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Moving the dm_bio_restore() to process_queued_bios() avoids doing that
work in multipath_end_io_bio().

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mike Snitzer 2017-12-06 16:08:14 -05:00
parent d07a241d4f
commit 1836df0891
1 changed files with 3 additions and 4 deletions
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7
drivers/md/dm-mpath.c
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@ -639,7 +639,9 @@ static void process_queued_bios(struct work_struct *work)
blk_start_plug(&plug);
while ((bio = bio_list_pop(&bios))) {
r = __multipath_map_bio(m, bio, get_mpio_from_bio(bio));
struct dm_mpath_io *mpio = get_mpio_from_bio(bio);
dm_bio_restore(get_bio_details_from_mpio(mpio), bio);
r = __multipath_map_bio(m, bio, mpio);
switch (r) {
case DM_MAPIO_KILL:
bio->bi_status = BLK_STS_IOERR;
@ -1551,9 +1553,6 @@ static int multipath_end_io_bio(struct dm_target *ti, struct bio *clone,
goto done;
}
/* Queue for the daemon to resubmit */
dm_bio_restore(get_bio_details_from_mpio(mpio), clone);
spin_lock_irqsave(&m->lock, flags);
bio_list_add(&m->queued_bios, clone);
spin_unlock_irqrestore(&m->lock, flags);