From nobody Sat Feb 7 18:20:42 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 79FAB1DDA3C for ; Mon, 3 Mar 2025 22:17:32 +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=1741040252; cv=none; b=AhnGuEE4BQDoYFfCfpwgixGWEyNPNGLwg70nfmNavWy5D8QQ+Pf+Q3vqz0qfGk7F7r3KjP/qlRAwfczn0E7ds/V6VxsvD9QZn1QVailGRtgvrhzxmuH+TjmT82qC7VBPW1mgOjxxJIjZ+j+vyjpbMpdVfYCG7sTbuRBZ8reIrgE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741040252; c=relaxed/simple; bh=3Dhep88DZZmRiLR4JWC42gaVSxkJVdFR1Myn7cDYqJ8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=N8dvueDOZcuPIfOGBp91RLADABHuOHOlBZRIDOQGZmjjGOs4faSjAnfx2ECtcOKN31tvA7Ti/9wKV+Vice2HTQWshFlM2rVsq6op35qr6vguj63FwzqydfzfYFqWQwifm30wYX8PmxWTuZ9dEFQZDsdIsa2zHAnhbzmzFfdCZLU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=k8IkKKnS; 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="k8IkKKnS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 476DCC4CEE5; Mon, 3 Mar 2025 22:17:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741040252; bh=3Dhep88DZZmRiLR4JWC42gaVSxkJVdFR1Myn7cDYqJ8=; h=From:To:Cc:Subject:Date:From; b=k8IkKKnSuXX9oOfKUomPgZ7LlFvIL5SR4515wYm59tc2uZ5PIjBjagYViP42eluJ1 +i7vI38FZeb29Q8uumRm08MMoc1Kajy5RCIP7K2JO52x88tntP2CaAwbA5MVEKuQb2 JhUUTkLVMy3NrcbivsDlUWkT4pHB0KR+V4GFvuz89SVaK9ByRzRCDcQ9kOzmTJbCz4 U4cUsOP62FGX/N2k1fT8b9RaKLwBV0uHXtoPFZcbD2j0obA9jcHquAuXz/Ys5iiv86 NIpr4u8rRjLmZsEt9imeuvcnNe0rmQhvYnq3P/SHKO6PQQWsWIKtGFnLywyjjQOZwM anBGgrZjSx+hQ== From: Jaegeuk Kim To: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim Subject: [PATCH] f2fs: set highest IO priority for checkpoint thread Date: Mon, 3 Mar 2025 22:17:30 +0000 Message-ID: <20250303221730.1284822-1-jaegeuk@kernel.org> X-Mailer: git-send-email 2.48.1.711.g2feabab25a-goog 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" The checkpoint is the top priority thread which can stop all the filesystem operations. Let's make it RT priority. Signed-off-by: Jaegeuk Kim Reviewed-by: Chao Yu Reviewed-by: Daeho Jeong --- fs/f2fs/checkpoint.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index bd890738b94d..8dbb815a35c0 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -21,7 +21,7 @@ #include "iostat.h" #include =20 -#define DEFAULT_CHECKPOINT_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3)) +#define DEFAULT_CHECKPOINT_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_RT, 3)) =20 static struct kmem_cache *ino_entry_slab; struct kmem_cache *f2fs_inode_entry_slab; --=20 2.48.1.711.g2feabab25a-goog