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authorMike Snitzer <snitzer@redhat.com>2012-12-21 20:23:37 +0000
committerAlasdair G Kergon <agk@redhat.com>2012-12-21 20:23:37 +0000
commit4f0b70b0479101522b8645ddc1f5ee7137821db3 (patch)
treeb149c9faa420893ec5d35a227d9de5bd8cfde461 /drivers/md/dm-linear.c
parent23508a96cd2e857d57044a2ed7d305f2d9daf441 (diff)
downloadlinux-4f0b70b0479101522b8645ddc1f5ee7137821db3.tar.gz
dm linear: add WRITE SAME support
The linear target can already support WRITE SAME requests so signal
this by setting num_write_same_requests to 1.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-linear.c')
-rw-r--r--drivers/md/dm-linear.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 1bf19a93eef0..82222a8cf750 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -55,6 +55,7 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
 	ti->num_flush_requests = 1;
 	ti->num_discard_requests = 1;
+	ti->num_write_same_requests = 1;
 	ti->private = lc;
 	return 0;
 
@@ -155,7 +156,7 @@ static int linear_iterate_devices(struct dm_target *ti,
 
 static struct target_type linear_target = {
 	.name   = "linear",
-	.version = {1, 1, 0},
+	.version = {1, 2, 0},
 	.module = THIS_MODULE,
 	.ctr    = linear_ctr,
 	.dtr    = linear_dtr,