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filesystem-dax: convert to dax_copy_from_iter()

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Now that all possible providers of the dax_operations copy_from_iter
method are implemented, switch filesytem-dax to call the driver rather
than copy_to_iter_pmem.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
2017-05-29 21:56:49 -07:00
parent 7e026c8c0a
commit fec53774fd
3 changed files with 2 additions and 75 deletions
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24
include/linux/pmem.h
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@@ -31,13 +31,6 @@ static inline void arch_memcpy_to_pmem(void *dst, const void *src, size_t n)
BUG();
}
static inline size_t arch_copy_from_iter_pmem(void *addr, size_t bytes,
struct iov_iter *i)
{
BUG();
return 0;
}
static inline void arch_clear_pmem(void *addr, size_t size)
{
BUG();
@@ -79,23 +72,6 @@ static inline void memcpy_to_pmem(void *dst, const void *src, size_t n)
memcpy(dst, src, n);
}
/**
* copy_from_iter_pmem - copy data from an iterator to PMEM
* @addr: PMEM destination address
* @bytes: number of bytes to copy
* @i: iterator with source data
*
* Copy data from the iterator 'i' to the PMEM buffer starting at 'addr'.
* See blkdev_issue_flush() note for memcpy_to_pmem().
*/
static inline size_t copy_from_iter_pmem(void *addr, size_t bytes,
struct iov_iter *i)
{
if (arch_has_pmem_api())
return arch_copy_from_iter_pmem(addr, bytes, i);
return copy_from_iter_nocache(addr, bytes, i);
}
/**
* clear_pmem - zero a PMEM memory range
* @addr: virtual start address