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dm writecache: remove superfluous test in persistent_memory_claim

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Remove superfluous test if dax_dev is NULL - dax_direct_access already
does this test.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mikulas Patocka 2020-04-19 04:34:00 -04:00 committed by Mike Snitzer
parent 9431cf6efc
commit 499c18045e
1 changed files with 0 additions and 4 deletions
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4
drivers/md/dm-writecache.c
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@ -234,10 +234,6 @@ static int persistent_memory_claim(struct dm_writecache *wc)
wc->memory_vmapped = false;
if (!wc->ssd_dev->dax_dev) {
r = -EOPNOTSUPP;
goto err1;
}
s = wc->memory_map_size;
p = s >> PAGE_SHIFT;
if (!p) {