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[PATCH] dm: map and endio symbolic return codes

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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 <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: dm-devel@redhat.com
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Kiyoshi Ueda
2006-12-08 02:41:06 -08:00
committed by Linus Torvalds
parent 45cbcd7983
commit d2a7ad29a8
7 changed files with 19 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/md/dm-mpath.c
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@@ -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;