libnvdimm, pmem: Change pmem physical sector size to PAGE_SIZE

Based on a patch: c8fa317 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 <[email protected]> Cc: Ross Zwisler <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Elliott, Robert <[email protected]> Signed-off-by: Vishal Verma <[email protected]> Acked-by: Boaz Harrosh <[email protected]> Acked-by: Ross Zwisler <[email protected]> Signed-off-by: Dan Williams <[email protected]>
zuai · Jul 28, 2015 · 6b47496 · 6b47496
1 parent 39c686b
commit 6b47496
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
@@ -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);