diff options
Diffstat (limited to 'sys/kern/vfs_cache.c')
| -rw-r--r-- | sys/kern/vfs_cache.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/sys/kern/vfs_cache.c b/sys/kern/vfs_cache.c index a1f94f4..f4f52bb 100644 --- a/sys/kern/vfs_cache.c +++ b/sys/kern/vfs_cache.c @@ -34,7 +34,7 @@ * SUCH DAMAGE. * * @(#)vfs_cache.c 8.5 (Berkeley) 3/22/95 - * $Id: vfs_cache.c,v 1.26 1997/08/04 07:31:36 phk Exp $ + * $Id: vfs_cache.c,v 1.27 1997/08/26 07:32:34 phk Exp $ */ #include <sys/param.h> @@ -103,6 +103,8 @@ cache_zap(ncp) { LIST_REMOVE(ncp, nc_hash); LIST_REMOVE(ncp, nc_src); + if (LIST_EMPTY(&ncp->nc_dvp->v_cache_src)) + vdrop(ncp->nc_dvp); if (ncp->nc_vp) { TAILQ_REMOVE(&ncp->nc_vp->v_cache_dst, ncp, nc_dst); } else { @@ -180,7 +182,6 @@ cache_lookup(dvp, vpp, cnp) /* We found a "positive" match, return the vnode */ if (ncp->nc_vp) { nchstats.ncs_goodhits++; - vtouch(ncp->nc_vp); *vpp = ncp->nc_vp; return (-1); } @@ -239,8 +240,10 @@ cache_enter(dvp, vp, cnp) malloc(sizeof *ncp + cnp->cn_namelen, M_CACHE, M_WAITOK); bzero((char *)ncp, sizeof *ncp); numcache++; - if (!vp) + if (!vp) { numneg++; + ncp->nc_flag = cnp->cn_flags & ISWHITEOUT ? NCF_WHITE : 0; + } /* * Fill in cache info, if vp is NULL this is a "negative" cache entry. @@ -249,15 +252,13 @@ cache_enter(dvp, vp, cnp) * otherwise unused. */ ncp->nc_vp = vp; - if (vp) - vtouch(vp); - else - ncp->nc_flag = cnp->cn_flags & ISWHITEOUT ? NCF_WHITE : 0; ncp->nc_dvp = dvp; ncp->nc_nlen = cnp->cn_namelen; bcopy(cnp->cn_nameptr, ncp->nc_name, (unsigned)ncp->nc_nlen); ncpp = NCHHASH(dvp, cnp); LIST_INSERT_HEAD(ncpp, ncp, nc_hash); + if (LIST_EMPTY(&dvp->v_cache_src)) + vhold(dvp); LIST_INSERT_HEAD(&dvp->v_cache_src, ncp, nc_src); if (vp) { TAILQ_INSERT_HEAD(&vp->v_cache_dst, ncp, nc_dst); |
