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authorDan Williams <dan.j.williams@intel.com>2016-02-24 14:02:11 -0800
committerVishal Verma <vishal.l.verma@intel.com>2016-05-18 12:16:56 -0600
commit0a70bd43053331d99881211e1d09f32de531432f (patch)
tree1f63c6ece9c22c30a99c19fd91a14dc1556dc7f6 /drivers/s390/block
parent8b3db9798c689ba2dc509f6ca1a8c7e1c1a3e62a (diff)
dax: enable dax in the presence of known media errors (badblocks)
1/ If a mapping overlaps a bad sector fail the request. 2/ Do not opportunistically report more dax-capable capacity than is requested when errors present. Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com> [vishal: fix a conflict with system RAM collision patches] [vishal: add a 'size' parameter to ->direct_access] [vishal: fix a conflict with DAX alignment check patches] Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Diffstat (limited to 'drivers/s390/block')
-rw-r--r--drivers/s390/block/dcssblk.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 1bce9cf51b1e..6ac33984bc0f 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -31,7 +31,7 @@ static void dcssblk_release(struct gendisk *disk, fmode_t mode);
static blk_qc_t dcssblk_make_request(struct request_queue *q,
struct bio *bio);
static long dcssblk_direct_access(struct block_device *bdev, sector_t secnum,
- void __pmem **kaddr, pfn_t *pfn);
+ void __pmem **kaddr, pfn_t *pfn, long size);
static char dcssblk_segments[DCSSBLK_PARM_LEN] = "\0";
@@ -883,7 +883,7 @@ fail:
static long
dcssblk_direct_access (struct block_device *bdev, sector_t secnum,
- void __pmem **kaddr, pfn_t *pfn)
+ void __pmem **kaddr, pfn_t *pfn, long size)
{
struct dcssblk_dev_info *dev_info;
unsigned long offset, dev_sz;