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dax: drop size parameter to ->direct_access()

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None of the implementations currently use it.  The common
bdev_direct_access() entry point handles all the size checks before
calling ->direct_access().

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
This commit is contained in:
Dan Williams 2015-08-07 17:41:00 -04:00
commit cb389b9c0e
6 changed files with 7 additions and 11 deletions
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6
drivers/block/brd.c
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@ -371,7 +371,7 @@ 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, unsigned long *pfn, long size)
void __pmem **kaddr, unsigned long *pfn)
{
struct brd_device *brd = bdev->bd_disk->private_data;
struct page *page;
@ -384,10 +384,6 @@ static long brd_direct_access(struct block_device *bdev, sector_t sector,
*kaddr = (void __pmem *)page_address(page);
*pfn = page_to_pfn(page);
/*
* TODO: If size > PAGE_SIZE, we could look to see if the next page in
* the file happens to be mapped to the next page of physical RAM.
*/
return PAGE_SIZE;
}
#else