pmem: flag pmem block devices as non-rotational

Orabug: 22913653

...since they are effectively SSDs as far as userspace is concerned.

Reviewed-by: Vishal Verma <vishal.l.verma@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
(cherry picked from commit 0f51c4fa7f60838a87cd45e8ba144dddcd4c066c)
Signed-off-by: Dan Duval <dan.duval@oracle.com>

diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 09195e3b7453cdc32b9eecde4f190b268ae3d1d1..a9709db0704c38d4d22cd30ac31c921f9bea644c 100644 (file)
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -158,6 +158,7 @@ static int pmem_attach_disk(struct nd_namespace_common *ndns,
        blk_queue_make_request(pmem->pmem_queue, pmem_make_request);
        blk_queue_max_hw_sectors(pmem->pmem_queue, UINT_MAX);
        blk_queue_bounce_limit(pmem->pmem_queue, BLK_BOUNCE_ANY);
+       queue_flag_set_unlocked(QUEUE_FLAG_NONROT, pmem->pmem_queue);
 
        disk = alloc_disk(0);
        if (!disk) {