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| author |   Dan Williams <dan.j.williams@intel.com> | 2016-02-24 14:02:11 -0800 |
|---|---|---|
| committer |   Vishal Verma <vishal.l.verma@intel.com> | 2016-05-18 12:16:56 -0600 |
| commit | 0a70bd43053331d99881211e1d09f32de531432f (patch) | |
| tree | 1f63c6ece9c22c30a99c19fd91a14dc1556dc7f6 /drivers/block/brd.c | |
| parent | dax: fallback from pmd to pte on error (diff) | |
| download | linux-dev-0a70bd43053331d99881211e1d09f32de531432f.tar.xz linux-dev-0a70bd43053331d99881211e1d09f32de531432f.zip | |
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/block/brd.c')
| -rw-r--r-- | drivers/block/brd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 51a071e32221..c04bd9bc39fd 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -381,7 +381,7 @@ static int brd_rw_page(struct block_device *bdev, sector_t sector, #ifdef CONFIG_BLK_DEV_RAM_DAX static long brd_direct_access(struct block_device *bdev, sector_t sector, - void __pmem **kaddr, pfn_t *pfn) + void __pmem **kaddr, pfn_t *pfn, long size) { struct brd_device *brd = bdev->bd_disk->private_data; struct page *page; |