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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>
hifive-unleashed-5.1
Mike Snitzer 2012-12-21 20:23:37 +00:00 committed by Alasdair G Kergon
parent 23508a96cd
commit 4f0b70b047
1 changed files with 2 additions and 1 deletions
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3
drivers/md/dm-linear.c
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@ -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,