Commit 6b47496a authored Jul 23, 2015 by Vishal Verma Committed by Dan Williams Jul 27, 2015

libnvdimm, pmem: Change pmem physical sector size to PAGE_SIZE

Based on a patch: c8fa3173 brd: Request from fdisk 4k alignment by Boaz
Harrosh, allow fdisk to create properly aligned partitions for DAX. This
will also cause mkfs.ext4 to emit a warning if using a file system block
size of less than PAGE_SIZE.

Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Elliott, Robert <Elliott@hp.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Acked-by: Boaz Harrosh <boaz@plexistor.com>
Acked-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

parent 39c686b8

drivers/nvdimm/pmem.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -162,6 +162,7 @@ static int pmem_attach_disk(struct nd_namespace_common *ndns,
		return -ENOMEM;

		blk_queue_make_request(pmem->pmem_queue, pmem_make_request);
		blk_queue_physical_block_size(pmem->pmem_queue, PAGE_SIZE);
		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);