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 6BEF63E557A; Thu, 16 Apr 2026 17:35:52 +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=1776360952; cv=none; b=TChMVJU43Hr7NMYsrG/ZjMcKJNrKdPxizMSt6MKTHU43y9HbkYu7UvQSV4nPxn+2gjs8h4MCOXNikZ0DtTrtHvOcA42BGSl6ZcVUDWmlDX0cGUpgXIpYnbBFYgR+gC0gxx5D+I+jyuIxooKmGK9T71Gm6QUgzQxMn+RoHqVhmyE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776360952; c=relaxed/simple; bh=mM6Q+CFzomu9wRc4F8gC1OVwVa/b0/30OWI+ofx9eGs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Um6hJVEZiVfpO9XG2cpR5CV51H/Go1ZGj3wGo+plDyvjnqqifzAw5OXeQg00M21jDyWu/n0Mt96q2Zu97JXt4kmhV+9ZIRhaWRNQyJTRF5qocK6bcBNPZOVxU5RoCsITc/dIu4p5BcZV6arblQ3dPH2wiHghd6p++xIYQ5Wgmrc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NB3+94mJ; 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="NB3+94mJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A6D8C2BCB5; Thu, 16 Apr 2026 17:35:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776360952; bh=mM6Q+CFzomu9wRc4F8gC1OVwVa/b0/30OWI+ofx9eGs=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=NB3+94mJlNEmUib9JIMANr+fqOJnpKLM45sfDRnoNb3JFP80JEsGFakkN/ecZeh9z mjP/SH15M18nMTjw3/NJKtPXjvF8zdUYubmKie95kB6VJv73xsGETvN+0N3UeVImM2 We1uC9wxra/u+47GdhMBsZIYTZyHL+Wg9lZY7XiNa2qECAR1llZ0VYXvH991xwBLs9 8a2nSteHXBGovzkm6WzN4wernxj2tH04EjbZaKKH0mJJ94S777bgOH2lqzuxwKxEes e6BHn3jndMjHICBCLIdSpuo1xFewRmxfukRuAAKMaNbN9za+LXVbO37yGmeeEq1w+K hCpybMhewAhmQ== From: Jeff Layton Date: Thu, 16 Apr 2026 10:35:19 -0700 Subject: [PATCH v2 18/28] nfsd: add tracepoint to dir_event handler Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260416-dir-deleg-v2-18-851426a550f6@kernel.org> References: <20260416-dir-deleg-v2-0-851426a550f6@kernel.org> In-Reply-To: <20260416-dir-deleg-v2-0-851426a550f6@kernel.org> To: Alexander Viro , Christian Brauner , Jan Kara , Chuck Lever , Alexander Aring , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Jonathan Corbet , Shuah Khan , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Trond Myklebust , Anna Schumaker , Amir Goldstein Cc: Calum Mackay , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-nfs@vger.kernel.org, Jeff Layton X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1983; i=jlayton@kernel.org; h=from:subject:message-id; bh=mM6Q+CFzomu9wRc4F8gC1OVwVa/b0/30OWI+ofx9eGs=; b=kA0DAAoBAA5oQRlWghUByyZiAGnhHeagZg/j66Nm0reQL3vFTIff90GlFS9fJZFD7JKVCU5Tp IkCMwQAAQoAHRYhBEvA17JEcbKhhOr10wAOaEEZVoIVBQJp4R3mAAoJEAAOaEEZVoIVbmwQAIr9 c3JEz4qGZn3cW03fQyr6wP7A/mh4axVGypgUMFerUCl1DZ8ABHciwXjYOksT9uhFqJX4k4x3MQe vUOaM/OLrM5+jS9r7cPhZ8uFwguNEhermoOEFYGIoxjsholeKzCfWcSFNek/8x8N6nn9SVFKNqo 0sbRPCeZ4FHDRxAlVgt6drOsT/CIQkUZCZpiFpx2Z0+Kl9GqrMyROgQH3k7wDDdOFWMMo4s/7fp +FC+SCBZGQ/y32SHQ7FgEPMYfjWIZUsbgQ+7ML+o6BKV/Ww3r4g/Ka8Bbc537bCs7dCaUczS5kN /RCuNoySlbIsDhCDyYg+7e1COppfvhkhoRvtX2epR0V8sCZmPx7m7x8ZvusFCcbNiX6ZMxeMgqY eQADms0BpHfw58MDKY+Jky4erP55/dcjO6CccFp7AEb/mO66mO7kLesWEqw82gomuOWeAqXnj40 i9PryqUyTvhVMXG6r8ux/QfqNgMirL0KXFH+owmxVyzArVWLJo0ZgLF03RNNF1pg65N0ti7Ug90 zT3ZlXQSbFplZdvpai7nevkINpq2QnispMekxX762tLOqzT8eovWHhNDmSLPhODKeqXbgUB3bE/ vMvOks850/34P1DLc10I4DJb//6POrcWf+Aqj2x2Egt1UmM9m0Ofh8QMT8DaJm+5R1rh0sQVDs7 p9y0V X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 Add some extra visibility around the fsnotify handlers. Reviewed-by: Steven Rostedt (Google) Signed-off-by: Jeff Layton --- fs/nfsd/nfs4state.c | 2 ++ fs/nfsd/trace.h | 22 ++++++++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index f4d0e64be544..eba6da1072c0 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -9995,6 +9995,8 @@ nfsd_handle_dir_event(u32 mask, const struct inode *dir, const void *data, struct file_lock_core *flc; struct nfsd_notify_event *evt; + trace_nfsd_handle_dir_event(mask, dir, name); + /* Normalize cross-dir rename events to create/delete */ if (mask & FS_MOVED_FROM) { mask &= ~FS_MOVED_FROM; diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index 60cacf64181c..b9119ff4253a 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -1377,6 +1378,27 @@ TRACE_EVENT(nfsd_file_fsnotify_handle_event, __entry->nlink, __entry->mode, __entry->mask) ); +TRACE_EVENT(nfsd_handle_dir_event, + TP_PROTO(u32 mask, const struct inode *dir, const struct qstr *name), + TP_ARGS(mask, dir, name), + TP_STRUCT__entry( + __field(u32, mask) + __field(dev_t, s_dev) + __field(ino_t, i_ino) + __string_len(name, name->name, name->len) + ), + TP_fast_assign( + __entry->mask = mask; + __entry->s_dev = dir->i_sb->s_dev; + __entry->i_ino = dir->i_ino; + __assign_str(name); + ), + TP_printk("inode=0x%x:0x%x:0x%lx mask=%s name=%s", + MAJOR(__entry->s_dev), MINOR(__entry->s_dev), + __entry->i_ino, show_fsnotify_mask(__entry->mask), + __get_str(name)) +); + DECLARE_EVENT_CLASS(nfsd_file_gc_class, TP_PROTO( const struct nfsd_file *nf -- 2.53.0