From: Mikulas Patocka Date: Mon, 22 Jun 2009 09:12:22 +0000 (+0100) Subject: dm: linear support flush X-Git-Tag: v2.6.31-rc1~8^2~27 X-Git-Url: http://ftp.safe.ca/?a=commitdiff_plain;h=433bcac5645508b71eab2710b6817c3ef937eba8;p=safe%2Fjmp%2Flinux-2.6 dm: linear support flush Flush support for the linear target. Signed-off-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon --- diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c index 79fb53e..ecbb174 100644 --- a/drivers/md/dm-linear.c +++ b/drivers/md/dm-linear.c @@ -53,6 +53,7 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad; } + ti->num_flush_requests = 1; ti->private = lc; return 0; @@ -81,7 +82,8 @@ static void linear_map_bio(struct dm_target *ti, struct bio *bio) struct linear_c *lc = ti->private; bio->bi_bdev = lc->dev->bdev; - bio->bi_sector = linear_map_sector(ti, bio->bi_sector); + if (bio_sectors(bio)) + bio->bi_sector = linear_map_sector(ti, bio->bi_sector); } static int linear_map(struct dm_target *ti, struct bio *bio,