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dm mpath: enable WRITE SAME support

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Enable WRITE SAME support in dm multipath.  As far as multipath is
concerned it is just another write request.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Tested-by: Bharata B Rao <bharata.rao@gmail.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Mike Snitzer 2013-05-10 14:37:16 +01:00 committed by Alasdair G Kergon
parent dc019b21fb
commit 042bcef889
1 changed files with 1 additions and 0 deletions
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drivers/md/dm-mpath.c
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@ -907,6 +907,7 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
ti->num_flush_bios = 1;
ti->num_discard_bios = 1;
ti->num_write_same_bios = 1;
return 0;