diff options
| author | Omar Sandoval <osandov@fb.com> | 2017-03-28 16:12:15 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-03-29 08:09:08 -0600 |
| commit | 334335d2f7a077a5ff561d86b0ad43bedd83ca05 (patch) | |
| tree | 7df8f5fb1b67e34ed19af17476ee2ed01bb2c673 /include/linux/blkdev.h | |
| parent | d3cfb2a0ac0b8487d28a1ee207c29617bf6e6820 (diff) | |
block: warn if sharing request queue across gendisks
Now that the remaining drivers have been converted to one request queue
per gendisk, let's warn if a request queue gets registered more than
once. This will catch future drivers which might do it inadvertently or
any old drivers that I may have missed.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 1a7dc42a8918..a2dc6b390d48 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -617,6 +617,7 @@ struct request_queue { #define QUEUE_FLAG_STATS 27 /* track rq completion times */ #define QUEUE_FLAG_RESTART 28 /* queue needs restart at completion */ #define QUEUE_FLAG_POLL_STATS 29 /* collecting stats for hybrid polling */ +#define QUEUE_FLAG_REGISTERED 30 /* queue has been registered to a disk */ #define QUEUE_FLAG_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) | \ (1 << QUEUE_FLAG_STACKABLE) | \ |