pmem: flag pmem block devices as non-rotational
authorDan Williams <dan.j.williams@intel.com>
Sat, 16 May 2015 16:28:54 +0000 (12:28 -0400)
committerDan Williams <dan.j.williams@intel.com>
Fri, 26 Jun 2015 15:23:38 +0000 (11:23 -0400)
...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>
drivers/nvdimm/pmem.c

index 09195e3..a9709db 100644 (file)
@@ -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) {