From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 3D9FE385D91 for ; Fri, 21 Aug 2026 15:50:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787327459; cv=none; b=D2IohIav/f/KbmPTctwrel6EqdmjASG9yXBJ9J0gM0UATVGGKxkPXO8ZNCWz5Mw+q8d6IoUeRCsIh6T0ZwM4iw31F5v4OrxivEYQGgxsAmeyHQUBRXgqdbqDtvmaiKF+4z3IfornKztMGQbQR7KsyFt1pIEs6HKxIXfOj7ccBSs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787327459; c=relaxed/simple; bh=W8pLkowF1rgwF1Q/rrLa0UgWGLFJxXoTURGNobYrrxs=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=EuemFsXfGlmOXUZqKUEsdCUGmlRQhen5K5z1U4e3kvHEU3Fp59IpGB3OdPrKwx6e6yWIrCbnyxCyXxBAtmH9aO/0O0Uic5Yqelxx7eNCnjt5cffQVAm0jYSy7xsA8NTM6M9c3qmZPII4eF128PkyevpywnZ6cOStegsKvOwA2w4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BRdY0jPw; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BRdY0jPw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B4CA11F000E9; Fri, 21 Aug 2026 15:50:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787327457; bh=CehXA5/5UcEf7fhT0Iw/KSIjLql9ZuLxenctivZuWy0=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=BRdY0jPwYg02EpDY9T47mNUyc1r3r1HAkcf8/r+1ptChfcgevq7U78MPqvC0/3fYc lxfzFqQhRaEbsI6rcqPWIEKm/DetqUvQporeTPpoW7a32tdCieJnn1P6UWqK2Z+T2l MHWjmeXbn3p3Jr+byzOqCo1ScQPxlaERjDfH+mJeJYh+kkP7mKehDaSa0YjLfVoUZh y7iDZq0XQEUdltRkR/StJUDYhq9w/aT2+U19bc7xoZlNgsUoYlmhMWCTx/fZ/T4Sm/ FW5bZJB0x6vjkutFl+yieAHkl8/hSqIvMJ1xW+TKUexh5VxEUVcOt+5yB5gEJJWQWy 44HHguzMfnMhQ== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 93A77380A979; Fri, 21 Aug 2026 15:50:08 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [f2fs-dev] [PATCH] f2fs: use f2fs_{down, up}_(read, write}_trace() for nat_tree_lock From: patchwork-bot+f2fs@kernel.org Message-Id: <178732740714.1339488.2738118422362472739.git-patchwork-notify@kernel.org> Date: Fri, 21 Aug 2026 15:50:07 +0000 References: <20260817111916.1648354-1-chao@kernel.org> In-Reply-To: <20260817111916.1648354-1-chao@kernel.org> To: Chao Yu Cc: jaegeuk@kernel.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Hello: This patch was applied to jaegeuk/f2fs.git (dev) by Jaegeuk Kim : On Mon, 17 Aug 2026 11:19:16 +0000 you wrote: > Under heavy workloads or during background GC/fallocate operations, > nat_tree_lock can experience high lock contention between background > readers (e.g. f2fs_get_node_info() in gc_data_segment) and writers > (e.g. flush_nat_entries, set_node_addr, shrinker). > > [375067.327986][T13777] schedule+0x4c/0x114 > [375067.327997][T13777] f2fs_get_node_info+0x438/0x5c4 > [375067.328002][T13777] f2fs_get_inode_page+0x1e0/0x3f0 > [375067.328013][T13777] f2fs_iget+0x88/0x1180 > [375067.328024][T13777] f2fs_lookup+0x168/0x3a8 > [375067.328035][T13777] path_openat+0xa28/0x1b04 > [375067.328046][T13777] do_filp_open+0xac/0x130 > [375067.328056][T13777] do_sys_openat2+0x140/0x21c > [375067.328066][T13777] __arm64_sys_openat+0x70/0x9c > > [...] Here is the summary with links: - [f2fs-dev] f2fs: use f2fs_{down, up}_(read, write}_trace() for nat_tree_lock https://git.kernel.org/jaegeuk/f2fs/c/f9c899ec50ab You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html