From: Chuck Lever Date: Fri, 8 Jul 2022 18:24:05 +0000 (-0400) Subject: NFSD: Report count of freed filecache items X-Git-Tag: v6.0-rc1~47^2~66 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d63293272abb51c02457f1017dfd61c3270d9ae3;p=thirdparty%2Fkernel%2Flinux.git NFSD: Report count of freed filecache items Surface the count of freed nfsd_file items. Reviewed-by: Jeff Layton Signed-off-by: Chuck Lever --- diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c index 6e9d1af86e7bf..e15e719ede9d0 100644 --- a/fs/nfsd/filecache.c +++ b/fs/nfsd/filecache.c @@ -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; }