Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ba744d5e authored by Richard Kennedy's avatar Richard Kennedy Committed by Jens Axboe
Browse files

block: reorder struct bio to remove padding on 64bit 



Remove 8 bytes of padding from struct bio which also removes 16 bytes from
struct bio_pair to make it 248 bytes.  bio_pair then fits into one fewer
cache lines & into a smaller slab.

Signed-off-by: default avatarRichard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 64d01dc9

include/linux/bio.h

+2 −1
Original line number Diff line number Diff line
@@ -90,10 +90,11 @@ struct bio { 


	unsigned int		bi_comp_cpu;	/* completion CPU */



	atomic_t		bi_cnt;		/* pin count */



	struct bio_vec		*bi_io_vec;	/* the actual vec list */



	bio_end_io_t		*bi_end_io;

	atomic_t		bi_cnt;		/* pin count */



	void			*bi_private;

#if defined(CONFIG_BLK_DEV_INTEGRITY)