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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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13
include/linux/fs.h
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@@ -151,11 +151,6 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
*/
#define CHECK_IOVEC_ONLY -1
#define RW_MASK REQ_OP_WRITE
#define READ REQ_OP_READ
#define WRITE REQ_OP_WRITE
/*
* Attribute flags. These should be or-ed together to figure out what
* has been changed!
@@ -2452,14 +2447,6 @@ extern void make_bad_inode(struct inode *);
extern bool is_bad_inode(struct inode *);
#ifdef CONFIG_BLOCK
/*
* return data direction, READ or WRITE
*/
static inline int bio_data_dir(struct bio *bio)
{
return op_is_write(bio_op(bio)) ? WRITE : READ;
}
extern void check_disk_size_change(struct gendisk *disk,
struct block_device *bdev);
extern int revalidate_disk(struct gendisk *);