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cache: bump numcache on entry, while here fix lnumcache type

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Sponsored by:	The FreeBSD Foundation
This commit is contained in:
mjg 2019-05-12 06:59:22 +00:00
parent 90d4098576
commit 568cd19283
1 changed files with 3 additions and 3 deletions
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6
sys/kern/vfs_cache.c
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@ -1632,7 +1632,7 @@ cache_enter_time(struct vnode *dvp, struct vnode *vp, struct componentname *cnp,
int flag;
int len;
bool neg_locked;
int lnumcache;
u_long lnumcache;
CTR3(KTR_VFS, "cache_enter(%p, %p, %s)", dvp, vp, cnp->cn_nameptr);
VNASSERT(vp == NULL || (vp->v_iflag & VI_DOOMED) == 0, vp,
@ -1646,7 +1646,8 @@ cache_enter_time(struct vnode *dvp, struct vnode *vp, struct componentname *cnp,
/*
* Avoid blowout in namecache entries.
*/
if (__predict_false(numcache >= desiredvnodes * ncsizefactor))
lnumcache = atomic_fetchadd_long(&numcache, 1) + 1;
if (__predict_false(lnumcache >= desiredvnodes * ncsizefactor))
return;
cache_celockstate_init(&cel);
@ -1825,7 +1826,6 @@ cache_enter_time(struct vnode *dvp, struct vnode *vp, struct componentname *cnp,
ncp->nc_name);
}
cache_enter_unlock(&cel);
lnumcache = atomic_fetchadd_long(&numcache, 1) + 1;
if (numneg * ncnegfactor > lnumcache)
cache_negative_zap_one();
cache_free(ndd);