From fcae695737fca0849c18db814d9d8de05c0fd2a2 Mon Sep 17 00:00:00 2001 From: Vishal Verma Date: Thu, 25 Jun 2015 04:22:39 -0400 Subject: libnvdimm, blk: add support for blk integrity Support multiple block sizes (sector + metadata) for nd_blk in the same way as done for the BTT. Add the idea of an 'internal' lbasize, which is properly aligned and padded, and store metadata in this space. Signed-off-by: Vishal Verma Signed-off-by: Dan Williams --- drivers/nvdimm/core.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/nvdimm/core.c') diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c index 1d96b9a6e4cc..4288169432de 100644 --- a/drivers/nvdimm/core.c +++ b/drivers/nvdimm/core.c @@ -379,6 +379,9 @@ int nd_integrity_init(struct gendisk *disk, unsigned long meta_size) }; int ret; + if (meta_size == 0) + return 0; + ret = blk_integrity_register(disk, &integrity); if (ret) return ret; -- cgit v1.2.3