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fs: decouple READ and WRITE from the block layer ops

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Move READ and WRITE to kernel.h and don't define them in terms of block
layer ops; they are our generic data direction indicators these days
and have no more resemblance with the block layer ops.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig 2016-11-01 07:40:11 -06:00 • committed by Jens Axboe
parent 70fd76140a
commit d38499530e
4 changed files with 11 additions and 14 deletions
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4
include/linux/kernel.h
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@ -50,6 +50,10 @@
#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a)))
#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
/* generic data direction definitions */
#define READ 0
#define WRITE 1
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
#define u64_to_user_ptr(x) ( \