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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
parent23508a96cd2e857d57044a2ed7d305f2d9daf441 (diff)
downloadop-kernel-dev-4f0b70b0479101522b8645ddc1f5ee7137821db3.zip
op-kernel-dev-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>
-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 1bf19a9..82222a8 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,
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