From nobody Fri Dec 19 04:09:15 2025 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 963E42676D9; Wed, 9 Apr 2025 14:33:06 +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=1744209186; cv=none; b=IQi3rb7rl7Fe4YB5vUPYFqq1jb1n2AKaI87jJWG5PNvAfxGoQo3bp6pic8ZRjiB8khgqPTzQfrbbkzGqW1fBFCaCcUez8EzVJNd2GIHp/fANg7Z63pCUdl0PtfyCkIrbFMyc8NMpg/Gm26JbtfQCDWUJkUSbu2bzC0CM2WP9JdI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744209186; c=relaxed/simple; bh=/KOiVKP/mQmiuytCVVn5ylF3FHBWBCxPKil6kEIiXok=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=kLocWwsyn8A+o6CTMP+mVUTNpCqUAqc/V9um2wLtMDHYCNgAJeqnxNBtz9CnC9A7LnjzF9OKUejUH+M+TFxhdxYdMCjprnb+ryxToAmVHXyC9O0dSiDTBYPXSQBaY1n9uCJIxWb0mfildYdm+UlqFtmBABzY/oMFA5iiWF0UpaY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kCO4Q2fH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="kCO4Q2fH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 90B3DC4CEE9; Wed, 9 Apr 2025 14:33:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744209186; bh=/KOiVKP/mQmiuytCVVn5ylF3FHBWBCxPKil6kEIiXok=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=kCO4Q2fHYQBSPh9tk8oehxKKXEMBsfF0dSH+ctRcrJJu8FzTiFWOvPBNBHA7N8tIp Vy0qBbibv+qmnHSsAZ7hzy6viQfROpjjePa5lLqdHsczzVLhbOFuhxAlXWcbbrwP80 UNbK/iyyzTz+ILk+1RYPiFxLt0IjyTGrSrXpNg2/05+QIDdDs5edV6Xcw5mkJQ3dnJ XPJVhNOjHjNJv4ezUn0q4rIW1uliQBDXp9ed2xlY71hnNUxhBaPS4vxNDkQu7yIfr3 vX/LWFJiv21fKmo2ZuTJaF/+/4Djgx2lMulshrEqWDlOta+ytZe9hZtrZimQxTRAMM sXGbmw8uypQPg== From: Jeff Layton Date: Wed, 09 Apr 2025 10:32:27 -0400 Subject: [PATCH v2 05/12] nfsd: add a tracepoint to nfsd_lookup_dentry Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250409-nfsd-tracepoints-v2-5-cf4e084fdd9c@kernel.org> References: <20250409-nfsd-tracepoints-v2-0-cf4e084fdd9c@kernel.org> In-Reply-To: <20250409-nfsd-tracepoints-v2-0-cf4e084fdd9c@kernel.org> To: Chuck Lever , Neil Brown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Trond Myklebust , Anna Schumaker Cc: Sargun Dillon , linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, Jeff Layton X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1596; i=jlayton@kernel.org; h=from:subject:message-id; bh=/KOiVKP/mQmiuytCVVn5ylF3FHBWBCxPKil6kEIiXok=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBn9oUaxPLdpG5t52q2LscinJDLxW04SnJkdNZc0 v5U98KSE+CJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZ/aFGgAKCRAADmhBGVaC Fb+BD/4sa+W5ImWyE5XuqzRwNT1M3A92I6DMhGpSLDEkHZwGTm1f9rRN35wzOcCRsgbbU6OMxCa 2s87TjJZpPVBdrlj9KtMAMl4MXkvDdkG+/5UbF2NxpKLLHUFWPru+feS3oWkW1ET5LgJCq5S2TI o0DcwT0fhfYbnZRxit2YXUTQrz0R5pOucdQfHlDjFEDkdFbu31Oi24fxORYH6XlwK8+4pHfs9O2 O8xAN3p/8+PS80/Di6R27RPFWepjBy+ke1JyT3/3CgcKKzl+zVRbV2QzLLzp1ECDjwSGC/PRZmF /uZg+JT1dj0W8yP3RbVzHNMFO9cpi7/8azsgiM5HGMUslH9mHZUtBfRISJCP66BDHcADemnEf+w WI20ZEJ6OGQ7tjFS1ZZo0+VFMR7UDOTa3plBfQI3VFBmBnT0WlTKUeFeH1slPjmzlJK5IN3aPrZ ABidft9vbmMfxmILEUtKsPdi7TshmP5yXsVbx7gqz34Nz5FospzU99gFsmHsQu295DknWvG4E09 rU2nohWhcB1Y9AbXBzn/1q8wuhrggLK6eLjRzfJUACKZVzGm5aF3UMvk1m6Gn0ZCcdXWKferkBs Uct6g2ALDq7/bOssfsETR5lKO2A96mCwKPPJT8LBcn5OC7l+e/Bc+RUqunS/tMV/jYXbq94zjiX iLGm/wIgwMxIb4w== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 ...and drop the dprintk. Signed-off-by: Jeff Layton --- fs/nfsd/trace.h | 19 +++++++++++++++++++ fs/nfsd/vfs.c | 2 +- 2 files changed, 20 insertions(+), 1 deletion(-) diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index c496fed58e2eed15458f35a158fbfef39a972c55..382849d7c321d6ded8213890c2e= 7075770aa716c 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -2372,6 +2372,25 @@ TRACE_EVENT(nfsd_setattr, ) ) =20 +TRACE_EVENT(nfsd_lookup_dentry, + TP_PROTO(struct svc_rqst *rqstp, + struct svc_fh *fhp, + const char *name, + unsigned int len), + TP_ARGS(rqstp, fhp, name, len), + TP_STRUCT__entry( + SVC_RQST_ENDPOINT_FIELDS(rqstp) + __field(u32, fh_hash) + __string_len(name, name, len) + ), + TP_fast_assign( + SVC_RQST_ENDPOINT_ASSIGNMENTS(rqstp); + __entry->fh_hash =3D knfsd_fh_hash(&fhp->fh_handle); + __assign_str(name); + ), + TP_printk("xid=3D0x%08x fh_hash=3D0x%08x name=3D%s", + __entry->xid, __entry->fh_hash, __get_str(name)) +); #endif /* _NFSD_TRACE_H */ =20 #undef TRACE_INCLUDE_PATH diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 77ae22abc1a21ec587cf089b2a5f750464b5e985..2b96806111d6a45b351707db6a9= 3219cb91d45f5 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -246,7 +246,7 @@ nfsd_lookup_dentry(struct svc_rqst *rqstp, struct svc_f= h *fhp, struct dentry *dentry; int host_err; =20 - dprintk("nfsd: nfsd_lookup(fh %s, %.*s)\n", SVCFH_fmt(fhp), len,name); + trace_nfsd_lookup_dentry(rqstp, fhp, name, len); =20 dparent =3D fhp->fh_dentry; exp =3D exp_get(fhp->fh_export); --=20 2.49.0