From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793207054; b=1xAWQKkmmAPNkF81gjjwcoF6TtBaF4b6TAR8B2vHBrGf9QgodkNFmE9DJVK/RVD0i2qA y/80JMmOO9CQI0H4yKs0I6FFf3FLZXUdM3UCJTi5tffqgRwosfZkyNlQs2cS+yY6V/TvI z6ftvH1b8rnyVULX+sdH1NeRIyVxA4RV7AfHdN/tN9al+UcWNa5zv9ivDtAwjYB+rjIyn xl009wXusUCX5fE6Ah59ueSCOlxtkc/80yeSWlYQcy8Gc9pN76Te4M94AKwP3UcTsKUEP Xj1IMA3ku+/zc3wusNDgNOEvomgdcYXlbuZPXM+bbN2lrwm7IUfjuh/Dz3He40dxgkQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793207054; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=Z3fBk51DmSnbw9Fa/kU6lKpF1eXaQSHzpdop3Bh2dCw=; b=aWXDriBCV19ZA/Yvx/sWKRF6Pi+UWZMX8xiKpv6zGPNierT2jxzN5jV/rhFCQAIPMmZ4 kk//XH2QgVFwuH7egFJdC7r/MohcthyoeU+iv5oIjUntvmuSbiOLBZmOfaXXcC8YnPJQd /h7oF3z9KVTsPEvobCGHrbzkxhzJofpAWp8L/ucL8h9+HJdA4y+34GB3WnjE/wRrKxnGT faKHrY3h+hTHE8D4AuDJVBw3s9ZCQ5cXdWMPu5HGYdmFZkf1NU1nQa7QQ4uTdvHV/9IYK EGpvvdEXxRf9cbS/M/P3Yglvy1szY7nucav6Ohu+fa9RQ6vHm6cWDLHqyOMwAjB6pvw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=Xp3myMvM; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2E122606A31A; Wed, 28 Oct 2026 17:04:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=Xp3myMvM Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4A99D1F01825; Wed, 28 Oct 2026 17:04:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793207053; bh=Z3fBk51DmSnbw9Fa/kU6lKpF1eXaQSHzpdop3Bh2dCw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Xp3myMvMwLFPupEsm58BFB/56o5Na6+1cUx9wejtU3RC9OGla0tY2C8xoPhqm/D4s Zs9Blc0WmL3ibsFVEp4ZK8kwbfzFyhiwKcTzUA+lvXJVBlwzEo5PDEm9qL4iMJVRmA jYgVdw365qL6URPHzDuQT3EbgxelXmUL7mMD0X9k= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Donggeun Yoo , Steven Rostedt Subject: [PATCH 7.3 10/38] tracing: Add the bucket size to expr_field_str() Date: Wed, 28 Oct 2026 17:59:57 +0100 Message-ID: <20261028165940.663254266@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261028165940.394092994@linuxfoundation.org> References: <20261028165940.394092994@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Donggeun Yoo commit c027ed03bc03a0e82fc368eaad657584a4480c7a upstream. expr_field_str() renders a HIST_FIELD_FL_BUCKET field as "pid.buckets", dropping the count, and parse_field() rejects that spelling. get_hist_field_flags() returns the bare string "buckets" and keeps the count in hist_field->buckets. hist_field_print() appends it, expr_field_str() never did. Nothing reaches it today, since .buckets is refused on a value and no expression can carry one, but the next patch renders histogram keys with expr_field_str(), where a .buckets key is legal. Append the count, as hist_field_print() does. Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20260914053443.981201-3-donggeunyoo.kernel@gmail.com Fixes: de9a48a360b7 ("tracing: Add linear buckets to histogram logic") Signed-off-by: Donggeun Yoo Assisted-by: Claude:claude-fable-5 Signed-off-by: Steven Rostedt Signed-off-by: Greg Kroah-Hartman --- kernel/trace/trace_events_hist.c | 3 +++ 1 file changed, 3 insertions(+) --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -1754,6 +1754,9 @@ static bool expr_field_str(struct hist_f seq_buf_printf(s, ".%s", flags_str); } + if (field->buckets) + seq_buf_printf(s, "=%lu", field->buckets); + return !seq_buf_has_overflowed(s); }