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Revert to the previous hashing, double the hashtable size instead.

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This commit is contained in:
Poul-Henning Kamp 1997-09-04 08:24:44 +00:00
parent 81cb6ddccd
commit 4d1122bdd6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=29094
1 changed files with 7 additions and 4 deletions
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11
sys/kern/vfs_cache.c
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@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* @(#)vfs_cache.c 8.5 (Berkeley) 3/22/95
* $Id: vfs_cache.c,v 1.29 1997/09/02 20:06:01 bde Exp $
* $Id: vfs_cache.c,v 1.30 1997/09/03 09:20:17 phk Exp $
*/
#include <sys/param.h>
@ -281,7 +281,7 @@ nchinit()
{
TAILQ_INIT(&ncneg);
nchashtbl = hashinit(desiredvnodes, M_CACHE, &nchash);
nchashtbl = hashinit(desiredvnodes*2, M_CACHE, &nchash);
}
/*
@ -298,14 +298,17 @@ cache_purge(vp)
{
struct namecache *ncp;
struct nchashhead *ncpp;
static u_long nextid;
while (!LIST_EMPTY(&vp->v_cache_src))
cache_zap(LIST_FIRST(&vp->v_cache_src));
while (!TAILQ_EMPTY(&vp->v_cache_dst))
cache_zap(TAILQ_FIRST(&vp->v_cache_dst));
if (!++vp->v_id)
vp->v_id++;
nextid++;
while (nextid == vp->v_id || !nextid)
continue;
vp->v_id = nextid;
vp->v_dd = vp;
vp->v_ddid = 0;
}