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pmem, dax: have direct_access use __pmem annotation

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Update the annotation for the kaddr pointer returned by direct_access()
so that it is a __pmem pointer.  This is consistent with the PMEM driver
and with how this direct_access() pointer is used in the DAX code.

Signed-off-by: Ross Zwisler <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
This commit is contained in:
Ross Zwisler 2015-08-18 13:55:41 -06:00 • committed by Dan Williams
commit e2e05394e4
8 changed files with 41 additions and 34 deletions
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4
drivers/nvdimm/pmem.c
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@ -92,7 +92,7 @@ static int pmem_rw_page(struct block_device *bdev, sector_t sector,
}
static long pmem_direct_access(struct block_device *bdev, sector_t sector,
void **kaddr, unsigned long *pfn, long size)
void __pmem **kaddr, unsigned long *pfn, long size)
{
struct pmem_device *pmem = bdev->bd_disk->private_data;
size_t offset = sector << 9;
@ -101,7 +101,7 @@ static long pmem_direct_access(struct block_device *bdev, sector_t sector,
return -ENODEV;
/* FIXME convert DAX to comprehend that this mapping has a lifetime */
*kaddr = (void __force *) pmem->virt_addr + offset;
*kaddr = pmem->virt_addr + offset;
*pfn = (pmem->phys_addr + offset) >> PAGE_SHIFT;
return pmem->size - offset;