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GC: BIO_ORDERED, various infrastructure dealing with BIO_ORDERED.

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This commit is contained in:
Poul-Henning Kamp 2002-02-22 09:26:35 +00:00
parent af91f4fa16
commit 57c10583aa
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=91063
5 changed files with 4 additions and 12 deletions
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3
sys/kern/subr_devstat.c
View File

@ -240,8 +240,7 @@ devstat_end_transaction_bio(struct devstat *ds, struct bio *bp)
flg = DEVSTAT_WRITE;
devstat_end_transaction(ds, bp->bio_bcount - bp->bio_resid,
(bp->bio_flags & BIO_ORDERED) ?
DEVSTAT_TAG_ORDERED : DEVSTAT_TAG_SIMPLE, flg);
DEVSTAT_TAG_SIMPLE, flg);
}
/*

3
sys/kern/subr_disklabel.c
View File

@ -105,8 +105,7 @@ bioqdisksort(bioq, bp)
* If the queue is empty or we are an
* ordered transaction, then it's easy.
*/
if ((bq = bioq_first(bioq)) == NULL
|| (bp->bio_flags & BIO_ORDERED) != 0) {
if ((bq = bioq_first(bioq)) == NULL) {
bioq_insert_tail(bioq, bp);
bioq->busy = 0;
return;

2
sys/kern/vfs_bio.c
View File

@ -1286,7 +1286,6 @@ brelse(struct buf * bp)
BUF_UNLOCK(bp);
bp->b_flags &= ~(B_ASYNC | B_NOCACHE | B_AGE | B_RELBUF |
B_DIRECT | B_NOWDRAIN);
bp->b_ioflags &= ~BIO_ORDERED;
if ((bp->b_flags & B_DELWRI) == 0 && (bp->b_xflags & BX_VNDIRTY))
panic("brelse: not dirty");
splx(s);
@ -1356,7 +1355,6 @@ bqrelse(struct buf * bp)
/* unlock */
BUF_UNLOCK(bp);
bp->b_flags &= ~(B_ASYNC | B_NOCACHE | B_AGE | B_RELBUF);
bp->b_ioflags &= ~BIO_ORDERED;
if ((bp->b_flags & B_DELWRI) == 0 && (bp->b_xflags & BX_VNDIRTY))
panic("bqrelse: not dirty");
splx(s);

6
sys/sys/bio.h
View File

@ -93,7 +93,6 @@ struct bio {
/* bio_flags */
#define BIO_ERROR 0x00000001
#define BIO_ORDERED 0x00000002
#define BIO_DONE 0x00000004
#define BIO_FLAG2 0x40000000 /* Available for local hacks */
#define BIO_FLAG1 0x80000000 /* Available for local hacks */
@ -152,10 +151,7 @@ bioq_init(struct bio_queue_head *head)
static __inline void
bioq_insert_tail(struct bio_queue_head *head, struct bio *bp)
{
if ((bp->bio_flags & BIO_ORDERED) != 0) {
head->insert_point = bp;
head->switch_point = NULL;
}
TAILQ_INSERT_TAIL(&head->queue, bp, bio_queue);
}

2
sys/vm/swap_pager.c
View File

@ -2078,7 +2078,7 @@ getchainbuf(struct bio *bp, struct vnode *vp, int flags)
waitchainbuf(bp, 4, 0);
nbp->b_iocmd = bp->bio_cmd;
nbp->b_ioflags = bp->bio_flags & BIO_ORDERED;
nbp->b_ioflags = 0;
nbp->b_flags = flags;
nbp->b_rcred = crhold(proc0.p_ucred);
nbp->b_wcred = crhold(proc0.p_ucred);