diff options
| author | Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> | 2019-06-20 20:59:16 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-06-20 22:03:51 +0300 |
| commit | e47bc4eda953928644109101d07c9c95dc29a458 (patch) | |
| tree | 838072a1f0b6eb3ad36ff61e9abdf5a90b7841f3 /include/linux/blkdev.h | |
| parent | 178cc590e54a9e04a749a0474fcaac0e8c20888f (diff) | |
| download | linux-e47bc4eda953928644109101d07c9c95dc29a458.tar.xz | |
block: add centralize REQ_OP_XXX to string helper
In order to centralize the REQ_OP_XXX to string conversion which can be
used in the block layer and different places in the kernel like f2fs,
this patch adds a new helper function along with an array similar to the
one present in the blk-mq-debugfs.c.
We keep this helper functionality centralize under blk-core.c instead of
blk-mq-debugfs.c since blk-core.c is configured using CONFIG_BLOCK and
it will not be dependent on blk-mq-debugfs.c which is configured using
CONFIG_BLK_DEBUG_FS.
Next patch adjusts the code in the blk-mq-debugfs.c with newly
introduced helper.
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index d5d3bb45dfb6..0c482371c8b3 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -865,6 +865,9 @@ extern void blk_execute_rq(struct request_queue *, struct gendisk *, extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *, struct request *, int, rq_end_io_fn *); +/* Helper to convert REQ_OP_XXX to its string format XXX */ +extern const char *blk_op_str(unsigned int op); + int blk_status_to_errno(blk_status_t status); blk_status_t errno_to_blk_status(int errno); |