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| author | Christoph Hellwig <hch@lst.de> | 2016-11-01 07:40:11 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-11-01 09:43:26 -0600 |
| commit | d38499530e5f170d30f32d3841fade204e63081d (patch) | |
| tree | 931cc16c86ab8d7b07dcda66febb6b1af21e2234 /include/linux/kernel.h | |
| parent | 70fd76140a6cb63262bd47b68d57b42e889c10ee (diff) | |
| download | lwn-d38499530e5f170d30f32d3841fade204e63081d.tar.gz lwn-d38499530e5f170d30f32d3841fade204e63081d.zip | |
fs: decouple READ and WRITE from the block layer ops
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>
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index bc6ed52a39b9..01b6b460c34d 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -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) ( \ |