From nobody Sat Feb 7 07:45:39 2026 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 7610027FD5F; Sat, 3 May 2025 19:59:47 +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=1746302387; cv=none; b=FKw1uZa1OtR4gOue0Viq2IWOtJl8DSH9JPd4GvypzAcoAlXzckjUc1w1vwQqSubxfEnjPdq/dka2Kc3H206d97sp4nVOHBKYQ9yotkWVeEFkT/8dx/L4shst64aMzzvPNk23kPYkQTrtttByPJJq70NOpTJmEGy+G0Rs9/sSisk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746302387; c=relaxed/simple; bh=Vd2V3yfktUNBWMDsQz5uQy2iqf4emXYgrGKyd09ytSo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cYiW3QP8kpjtQxt2QQ9He9lDS8pudLDCZOAiBH/kMBRH9DtFP806F6ImEUanjgolFrh2aRUIKLIDXeop51WmBIOSDfN5506JhdnTElrlS9dkJKTqJPaz+irvlgKbdPCO9A2ub/5WSYufmDHfZ8qWPEJQIrF57A4cAspNk9RbSHs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MRSDwr1P; 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="MRSDwr1P" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4A810C4CEEE; Sat, 3 May 2025 19:59:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746302387; bh=Vd2V3yfktUNBWMDsQz5uQy2iqf4emXYgrGKyd09ytSo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MRSDwr1P6HRV8UoA5bBkwJkVnqohjGUAVqbxtzRBr1V/EYtV/29Baprq4UCsO3gwE 0uMJLvnml29hvTfTWybHmk5+idaD9BzFYtrFGG36PR+Ci7P8+MHDcOSeyoha5fra6X FE9pvgPBo3GPWlwMloft4mpL1SFEdBNos7+nsyEVxgWDsqFqKy2L3pBsE5dW8xHELh B5c/C8fi0Z/obEXfheJ6QXtq1Xm9SFbzEtcfuS/5U3wjuZkllhF7bAtNEn8sKC3Z9l Qx7vlY9fP4T25Qh1WPCNjzqjx0Y3PgMuhI8WvI8oXFszrKfg0pffC2dJiWLDe34WcM 7cjr21xS+54Og== From: cel@kernel.org To: NeilBrown , Jeff Layton , Olga Kornievskaia , Dai Ngo , Tom Talpey , Trond Myklebust , Anna Schumaker Cc: sargun@sargun.me, , Subject: [PATCH v4 06/18] nfsd: add tracepoint to nfsd_symlink Date: Sat, 3 May 2025 15:59:24 -0400 Message-ID: <20250503195936.5083-7-cel@kernel.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250503195936.5083-1-cel@kernel.org> References: <20250503195936.5083-1-cel@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Jeff Layton Observe the start of SYMLINK operations for all NFS versions. Signed-off-by: Jeff Layton Signed-off-by: Chuck Lever --- fs/nfsd/trace.h | 27 +++++++++++++++++++++++++++ fs/nfsd/vfs.c | 2 ++ 2 files changed, 29 insertions(+) diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index a71d605fd7b7..e347cdaaa732 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -2444,6 +2444,33 @@ TRACE_EVENT(nfsd_vfs_create, ) ); =20 +TRACE_EVENT(nfsd_vfs_symlink, + TP_PROTO( + const struct svc_rqst *rqstp, + const struct svc_fh *fhp, + const char *name, + unsigned int namelen, + const char *target + ), + TP_ARGS(rqstp, fhp, name, namelen, target), + TP_STRUCT__entry( + NFSD_TRACE_PROC_CALL_FIELDS(rqstp) + __field(u32, fh_hash) + __string_len(name, name, namelen) + __string(target, target) + ), + TP_fast_assign( + NFSD_TRACE_PROC_CALL_ASSIGNMENTS(rqstp); + __entry->fh_hash =3D knfsd_fh_hash(&fhp->fh_handle); + __assign_str(name); + __assign_str(target); + ), + TP_printk("xid=3D0x%08x fh_hash=3D0x%08x name=3D%s target=3D%s", + __entry->xid, __entry->fh_hash, + __get_str(name), __get_str(target) + ) +); + #endif /* _NFSD_TRACE_H */ =20 #undef TRACE_INCLUDE_PATH diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index cc0efc47dc25..ecd453b260b6 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1651,6 +1651,8 @@ nfsd_symlink(struct svc_rqst *rqstp, struct svc_fh *f= hp, __be32 err, cerr; int host_err; =20 + trace_nfsd_vfs_symlink(rqstp, fhp, fname, flen, path); + err =3D nfserr_noent; if (!flen || path[0] =3D=3D '\0') goto out; --=20 2.49.0