From nobody Mon Dec 1 22:04:01 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 9982B23185D for ; Fri, 28 Nov 2025 01:23:22 +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=1764293002; cv=none; b=AM5Sqld3fIixx7FDS2QPuDKp4TfANelRwRqLXhwuQkerIPOiwuRlsroulRyBH+h50P5t1YStE/y4JxZKabZryuBU11cYHF3NNqHHHjcKHHHuiOkoWCL2EZ5/Q7sjNaby84Dkbsafs8kv9gc9f1jwbQmW9IyLnC+HtBakFYAvpe0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764293002; c=relaxed/simple; bh=TpSckzcuTVMp77oFii+eero2AXWQR14UYGLmXXKZg1o=; h=Message-ID:Date:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=oBESXWMTzWQ4eJcIIXBJn/y6ZQgU468bdRKcbvX5mS5ma6puhRRDw+apviMesctSBMP9n61w1zmKIy1fqAYpECDeaHhmUPjOaFl/T5a/W2S4g1ABZwVlqksv9bfMAgfrxIeUVB9vp3gkoGkH34gcDonz3Xwong+AQw1z+Hv+nO0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PH/fB1zM; 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="PH/fB1zM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 71D24C4CEF8; Fri, 28 Nov 2025 01:23:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764293002; bh=TpSckzcuTVMp77oFii+eero2AXWQR14UYGLmXXKZg1o=; h=Date:From:To:Cc:Subject:References:From; b=PH/fB1zMobWmN4D1U0slCVknfcjTZLHGmBRPxYOg/dYP+YFuYpRXhP7eNnfWEFKiC iwQUu9jJXF5gzaf1gAyk3mcR7skk1oddNpGRbQhc1xDL+XPvGwl/0T7m1a8REsAYKL +ckmlys2qjBSOA4ynQ8dC6JMGHEHN+TE2Mk6pNJrt15UfKJSRzuDzVFjzjkEbVGNRY c8oHAb8ZrUZxUyTqjCy9Egp0yPiBJrvPFIO7iRglxRnANotso5xby6Y8lFuItIK6Fj iEkPlKBwmLanB+FFYZVvRgMHV//FtPyiPa8jynZXjQ6h7w6wlUpbbfayh5cYcDbWFO E/AMxONExFrJA== Received: from rostedt by gandalf with local (Exim 4.98.2) (envelope-from ) id 1vOnDY-00000006ggj-0ZDM; Thu, 27 Nov 2025 20:24:12 -0500 Message-ID: <20251128012411.987104022@kernel.org> User-Agent: quilt/0.68 Date: Thu, 27 Nov 2025 20:23:38 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Tom Zanussi Subject: [for-next][PATCH 07/13] tracing: Remove unneeded event_mutex lock in event_trigger_regex_release() References: <20251128012331.307010654@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: Steven Rostedt In event_trigger_regex_release(), the only code is: mutex_lock(&event_mutex); if (file->f_mode & FMODE_READ) seq_release(inode, file); mutex_unlock(&event_mutex); return 0; There's nothing special about the file->f_mode or the seq_release() that requires any locking. Remove the unnecessary locks. Cc: Mark Rutland Cc: Mathieu Desnoyers Cc: Andrew Morton Cc: Tom Zanussi Link: https://patch.msgid.link/20251125214031.975879283@kernel.org Acked-by: Masami Hiramatsu (Google) Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace_events_trigger.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_event= s_trigger.c index 7795af600466..e5dcfcbb2cd5 100644 --- a/kernel/trace/trace_events_trigger.c +++ b/kernel/trace/trace_events_trigger.c @@ -314,13 +314,9 @@ static ssize_t event_trigger_regex_write(struct file *= file, =20 static int event_trigger_regex_release(struct inode *inode, struct file *f= ile) { - mutex_lock(&event_mutex); - if (file->f_mode & FMODE_READ) seq_release(inode, file); =20 - mutex_unlock(&event_mutex); - return 0; } =20 --=20 2.51.0