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Avoid using bp->b_vp when we already have the vnode by other means.

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This commit is contained in:
Poul-Henning Kamp 2004-10-27 06:45:52 +00:00
parent a40a512387
commit f6b855f60b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=136989
1 changed files with 5 additions and 6 deletions
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11
sys/kern/vfs_cluster.c
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@ -395,15 +395,15 @@ cluster_rbuild(vp, filesize, lbn, blkno, size, run, fbp)
* VMIO backed. The clustering code can only deal
* with VMIO-backed buffers.
*/
VI_LOCK(bp->b_vp);
VI_LOCK(vp);
if ((tbp->b_vflags & BV_BKGRDINPROG) ||
(tbp->b_flags & B_CACHE) ||
(tbp->b_flags & B_VMIO) == 0) {
VI_UNLOCK(bp->b_vp);
VI_UNLOCK(vp);
bqrelse(tbp);
break;
}
VI_UNLOCK(bp->b_vp);
VI_UNLOCK(vp);
/*
* The buffer must be completely invalid in order to
@ -1010,13 +1010,12 @@ cluster_collectbufs(vp, last_bp)
(void) bread(vp, lbn, last_bp->b_bcount, NOCRED, &bp);
buflist->bs_children[i] = bp;
if (bp->b_blkno == bp->b_lblkno)
VOP_BMAP(bp->b_vp, bp->b_lblkno, NULL, &bp->b_blkno,
VOP_BMAP(vp, bp->b_lblkno, NULL, &bp->b_blkno,
NULL, NULL);
}
buflist->bs_children[i] = bp = last_bp;
if (bp->b_blkno == bp->b_lblkno)
VOP_BMAP(bp->b_vp, bp->b_lblkno, NULL, &bp->b_blkno,
NULL, NULL);
VOP_BMAP(vp, bp->b_lblkno, NULL, &bp->b_blkno, NULL, NULL);
buflist->bs_nchildren = i + 1;
return (buflist);
}