From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0AD64524AF; Mon, 8 Apr 2024 13:51:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712584277; cv=none; b=r3uUgW3f9+epM7pEA8bJCiLnQBZtQGVvdeC1i1nSzYZB9a2U6w+hkGQ6FZv+6YBmRes62q0kMgDVuHjFU2HZQF2bPEbn0dWJpmw7n+mbHQRXkV0x8Q5S/KRr3vhPD6mLFJtpk1iv12WF0q+6IF6Dls6Sv4uCUj5/dCH7bHQga4s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712584277; c=relaxed/simple; bh=CIBIvxI08PPt2PLm6zejwgtQTBgE00ZYURr4BXRF2Io=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=X1DaxKzHnLkhXeo3Ng948jRcWWSfKaCZROI1e38tgKbqtLNYYoYP1/Xp6QFdlv7+zMMgozWRPzHPqSBon5pC8gOBPiTId4KcbsNrWF8Sgj0DOtDPUX5yP7HtydjO1lciBovv/AcPJinQs6zsLGdxRbsZ9QpCWVfzgtFO+c2cFQM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=pAG+g4Lk; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="pAG+g4Lk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 894EAC433C7; Mon, 8 Apr 2024 13:51:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712584276; bh=CIBIvxI08PPt2PLm6zejwgtQTBgE00ZYURr4BXRF2Io=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pAG+g4Lk3SBuqHtFxclPP/lWkweZfUiaQEm2WsW+41VJeNPYIynE9q0Qvkn2mcT51 A1Y8lXEQiAcGS2wmeDemfNrTTXvIi6jp53hYnvlpcRIL9Y2fc33WDDzzHQKfMOOgBl oRCA5azjtPo2SbXT3lcIVHuRu0ah4xGmQbiyaDec= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jeff Layton , Chuck Lever Subject: [PATCH 5.15 348/690] NFSD: Report count of freed filecache items Date: Mon, 8 Apr 2024 14:53:34 +0200 Message-ID: <20240408125412.206534910@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240408125359.506372836@linuxfoundation.org> References: <20240408125359.506372836@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chuck Lever [ Upstream commit d63293272abb51c02457f1017dfd61c3270d9ae3 ] Surface the count of freed nfsd_file items. Reviewed-by: Jeff Layton Signed-off-by: Chuck Lever --- fs/nfsd/filecache.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c index 5a09b76ae25a8..5d31622c23040 100644 --- a/fs/nfsd/filecache.c +++ b/fs/nfsd/filecache.c @@ -43,6 +43,7 @@ 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; @@ -195,6 +196,8 @@ 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); @@ -1049,7 +1052,7 @@ 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; @@ -1071,6 +1074,7 @@ 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); @@ -1078,6 +1082,7 @@ 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; } -- 2.43.0