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NFSD: Report count of freed filecache items

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Surface the count of freed nfsd_file items.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2022-07-08 14:24:05 -04:00
parent 29d4bdbbb9
commit d63293272a
1 changed files with 6 additions and 1 deletions
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7
fs/nfsd/filecache.c
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@ -44,6 +44,7 @@ struct nfsd_fcache_bucket {
static DEFINE_PER_CPU(unsigned long, nfsd_file_cache_hits);
static DEFINE_PER_CPU(unsigned long, nfsd_file_acquisitions);
static DEFINE_PER_CPU(unsigned long, nfsd_file_releases);
struct nfsd_fcache_disposal {
struct work_struct work;
@ -196,6 +197,8 @@ nfsd_file_free(struct nfsd_file *nf)
{
bool flush = false;
this_cpu_inc(nfsd_file_releases);
trace_nfsd_file_put_final(nf);
if (nf->nf_mark)
nfsd_file_mark_put(nf->nf_mark);
@ -1050,7 +1053,7 @@ nfsd_file_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
*/
static int nfsd_file_cache_stats_show(struct seq_file *m, void *v)
{
unsigned long hits = 0, acquisitions = 0;
unsigned long hits = 0, acquisitions = 0, releases = 0;
unsigned int i, count = 0, longest = 0;
unsigned long lru = 0;
@ -1072,6 +1075,7 @@ static int nfsd_file_cache_stats_show(struct seq_file *m, void *v)
for_each_possible_cpu(i) {
hits += per_cpu(nfsd_file_cache_hits, i);
acquisitions += per_cpu(nfsd_file_acquisitions, i);
releases += per_cpu(nfsd_file_releases, i);
}
seq_printf(m, "total entries: %u\n", count);
@ -1079,6 +1083,7 @@ static int nfsd_file_cache_stats_show(struct seq_file *m, void *v)
seq_printf(m, "lru entries: %lu\n", lru);
seq_printf(m, "cache hits: %lu\n", hits);
seq_printf(m, "acquisitions: %lu\n", acquisitions);
seq_printf(m, "releases: %lu\n", releases);
return 0;
}