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vfs cache: retire dothits and dotdothits counters

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They demonstrate nothing, and in case of dotdot they are not even hits.
This is just a count of lookups with "..", which are not worth
mentioniong.

(cherry picked from commit bb124a0f61)
This commit is contained in:
Mateusz Guzik 2023-09-23 00:08:49 +00:00
parent 3f4e6aa2ae
commit 0cf6ebad73
1 changed files with 0 additions and 6 deletions
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6
sys/kern/vfs_cache.c
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@ -530,8 +530,6 @@ STATNODE_ULONG(neg, numneg, "Number of negative cache entries");
STATNODE_ULONG(count, numcache, "Number of cache entries");
STATNODE_COUNTER(heldvnodes, numcachehv, "Number of namecache entries with vnodes held");
STATNODE_COUNTER(drops, numdrops, "Number of dropped entries due to reaching the limit");
STATNODE_COUNTER(dothits, dothits, "Number of '.' hits");
STATNODE_COUNTER(dotdothits, dotdothits, "Number of '..' hits");
STATNODE_COUNTER(miss, nummiss, "Number of cache misses");
STATNODE_COUNTER(misszap, nummisszap, "Number of cache misses we do not want to cache");
STATNODE_COUNTER(poszaps, numposzaps,
@ -1782,7 +1780,6 @@ cache_lookup_dot(struct vnode *dvp, struct vnode **vpp, struct componentname *cn
int ltype;
*vpp = dvp;
counter_u64_add(dothits, 1);
SDT_PROBE3(vfs, namecache, lookup, hit, dvp, ".", *vpp);
if (tsp != NULL)
timespecclear(tsp);
@ -1827,7 +1824,6 @@ cache_lookup_dotdot(struct vnode *dvp, struct vnode **vpp, struct componentname
return (0);
}
counter_u64_add(dotdothits, 1);
retry:
dvlp = VP2VNODELOCK(dvp);
mtx_lock(dvlp);
@ -5131,7 +5127,6 @@ cache_fplookup_dot(struct cache_fpl *fpl)
fpl->tvp = fpl->dvp;
fpl->tvp_seqc = fpl->dvp_seqc;
counter_u64_add(dothits, 1);
SDT_PROBE3(vfs, namecache, lookup, hit, fpl->dvp, ".", fpl->dvp);
error = 0;
@ -5220,7 +5215,6 @@ cache_fplookup_dotdot(struct cache_fpl *fpl)
return (cache_fpl_aborted(fpl));
}
counter_u64_add(dotdothits, 1);
return (0);
}