@@ -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;
@@ -202,6 +203,8 @@ 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);
@@ -1070,7 +1073,7 @@ 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;
/*
@@ -1090,6 +1093,7 @@ 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);
@@ -1097,6 +1101,7 @@ static int nfsd_file_cache_stats_show(struct seq_file *m, void *v)
seq_printf(m, "lru entries: %lu\n", list_lru_count(&nfsd_file_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;
}
Surface the count of freed nfsd_file items. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> --- fs/nfsd/filecache.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)