Re: [PATCH 1/8] block: add WRITE_BACKGROUND

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue 01-11-16 15:08:44, Jens Axboe wrote:
> This adds a new request flag, REQ_BACKGROUND, that callers can use to
> tell the block layer that this is background (non-urgent) IO.
> 
> Signed-off-by: Jens Axboe <axboe@xxxxxx>

Looks good. You can add:

Reviewed-by: Jan Kara <jack@xxxxxxx>

								Honza

> ---
>  include/linux/blk_types.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> index bb921028e7c5..562ac46cb790 100644
> --- a/include/linux/blk_types.h
> +++ b/include/linux/blk_types.h
> @@ -177,6 +177,7 @@ enum req_flag_bits {
>  	__REQ_FUA,		/* forced unit access */
>  	__REQ_PREFLUSH,		/* request for cache flush */
>  	__REQ_RAHEAD,		/* read ahead, can fail anytime */
> +	__REQ_BACKGROUND,	/* background IO */
>  	__REQ_NR_BITS,		/* stops here */
>  };
>  
> @@ -192,6 +193,7 @@ enum req_flag_bits {
>  #define REQ_FUA			(1ULL << __REQ_FUA)
>  #define REQ_PREFLUSH		(1ULL << __REQ_PREFLUSH)
>  #define REQ_RAHEAD		(1ULL << __REQ_RAHEAD)
> +#define REQ_BACKGROUND		(1ULL << __REQ_BACKGROUND)
>  
>  #define REQ_FAILFAST_MASK \
>  	(REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
> -- 
> 2.7.4
> 
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR
--
To unsubscribe from this list: send the line "unsubscribe linux-block" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux RAID]     [Linux SCSI]     [Linux ATA RAID]     [IDE]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Device Mapper]

  Powered by Linux