Commit 96222bcc authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

block: add REQ_DRV bit 



Set aside a bit in the request/bio flags for driver use.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 8977f563

include/linux/blk_types.h

+5 −0
Original line number Diff line number Diff line
@@ -229,6 +229,9 @@ enum req_flag_bits { 
	/* command specific flags for REQ_OP_WRITE_ZEROES: */

	__REQ_NOUNMAP,		/* do not free blocks when zeroing */



	/* for driver use */

	__REQ_DRV,



	__REQ_NR_BITS,		/* stops here */

};
@@ -249,6 +252,8 @@ enum req_flag_bits { 


#define REQ_NOUNMAP		(1ULL << __REQ_NOUNMAP)



#define REQ_DRV			(1ULL << __REQ_DRV)



#define REQ_FAILFAST_MASK \

	(REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)

CRA Git | Maintained and supported by SUSTech CRA and CCSE