From d2a7ad29a810441e9dacbaddcc2f0c6045390008 Mon Sep 17 00:00:00 2001 From: Kiyoshi Ueda Date: Fri, 8 Dec 2006 02:41:06 -0800 Subject: [PATCH] dm: map and endio symbolic return codes Update existing targets to use the new symbols for return values from target map and end_io functions. There is no effect on behaviour. Test results: Done build test without errors. Signed-off-by: Kiyoshi Ueda Signed-off-by: Jun'ichi Nomura Signed-off-by: Alasdair G Kergon Cc: dm-devel@redhat.com Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/dm-mpath.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/md/dm-mpath.c') diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index dda4109292bc..d325edcbb3f5 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -285,7 +285,7 @@ failed: static int map_io(struct multipath *m, struct bio *bio, struct mpath_io *mpio, unsigned was_queued) { - int r = 1; + int r = DM_MAPIO_REMAPPED; unsigned long flags; struct pgpath *pgpath; @@ -310,7 +310,7 @@ static int map_io(struct multipath *m, struct bio *bio, struct mpath_io *mpio, !m->queue_io) queue_work(kmultipathd, &m->process_queued_ios); pgpath = NULL; - r = 0; + r = DM_MAPIO_SUBMITTED; } else if (!pgpath) r = -EIO; /* Failed */ else @@ -372,7 +372,7 @@ static void dispatch_queued_ios(struct multipath *m) r = map_io(m, bio, mpio, 1); if (r < 0) bio_endio(bio, bio->bi_size, r); - else if (r == 1) + else if (r == DM_MAPIO_REMAPPED) generic_make_request(bio); bio = next; @@ -1042,7 +1042,7 @@ static int do_end_io(struct multipath *m, struct bio *bio, queue_work(kmultipathd, &m->process_queued_ios); spin_unlock_irqrestore(&m->lock, flags); - return 1; /* io not complete */ + return DM_ENDIO_INCOMPLETE; /* io not complete */ } static int multipath_end_io(struct dm_target *ti, struct bio *bio, @@ -1060,7 +1060,7 @@ static int multipath_end_io(struct dm_target *ti, struct bio *bio, if (ps->type->end_io) ps->type->end_io(ps, &pgpath->path); } - if (r <= 0) + if (r != DM_ENDIO_INCOMPLETE) mempool_free(mpio, m->mpio_pool); return r; -- cgit v1.2.3-59-g8ed1b