Re: [PATCH 6/7] blk-mq: enable polling support by default
From: Jeff Moyer <hidden>
Date: 2016-02-26 20:44:32
Hi, Christoph, Christoph Hellwig [off-list ref] writes:
Now that applications need to explicitly ask for polling we can enable it by default in blk-mq drivers.
I don't think this is a good idea. I'd just enable it in nvme and the micron driver for now. Cheers, Jeff
quoted hunk
Signed-off-by: Christoph Hellwig <redacted> --- include/linux/blkdev.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 4571ef1..458f6ef 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h@@ -499,7 +499,8 @@ struct request_queue { #define QUEUE_FLAG_MQ_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) | \ (1 << QUEUE_FLAG_STACKABLE) | \ - (1 << QUEUE_FLAG_SAME_COMP)) + (1 << QUEUE_FLAG_SAME_COMP) | \ + (1 << QUEUE_FLAG_POLL)) static inline void queue_lockdep_assert_held(struct request_queue *q) {