mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-06 02:24:14 +08:00
raid5: avoid unnecessary bio data set
bio_reset doesn't change bi_io_vec and bi_max_vecs, so we don't need to set them every time. bi_private will be set before the bio is dispatched. Signed-off-by: Shaohua Li <shli@fb.com>
This commit is contained in:
parent
5f9d1fde7d
commit
45c91d808f
@ -2005,7 +2005,12 @@ static struct stripe_head *alloc_stripe(struct kmem_cache *sc, gfp_t gfp,
|
||||
struct r5dev *dev = &sh->dev[i];
|
||||
|
||||
bio_init(&dev->req);
|
||||
dev->req.bi_io_vec = &dev->vec;
|
||||
dev->req.bi_max_vecs = 1;
|
||||
|
||||
bio_init(&dev->rreq);
|
||||
dev->rreq.bi_io_vec = &dev->rvec;
|
||||
dev->rreq.bi_max_vecs = 1;
|
||||
}
|
||||
}
|
||||
return sh;
|
||||
@ -2507,14 +2512,6 @@ static void raid5_build_block(struct stripe_head *sh, int i, int previous)
|
||||
{
|
||||
struct r5dev *dev = &sh->dev[i];
|
||||
|
||||
dev->req.bi_io_vec = &dev->vec;
|
||||
dev->req.bi_max_vecs = 1;
|
||||
dev->req.bi_private = sh;
|
||||
|
||||
dev->rreq.bi_io_vec = &dev->rvec;
|
||||
dev->rreq.bi_max_vecs = 1;
|
||||
dev->rreq.bi_private = sh;
|
||||
|
||||
dev->flags = 0;
|
||||
dev->sector = raid5_compute_blocknr(sh, i, previous);
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user