From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0B179D29C2E for ; Mon, 19 Jan 2026 14:47:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.sourceforge.net; s=beta; h=Content-Transfer-Encoding:Content-Type:Cc: Reply-To:From:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Subject:MIME-Version:References:In-Reply-To: Message-Id:Date:To:Sender:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=9fUACsM89ZoXkN8UcuoqIA3WO272qIYU+MR07oERZM0=; b=k/qMmuApUdae2x9mzAuw6a/lp/ IGtaOYL9N3s/7uGL4RND9H2zdSoq5vAXBFILXoC0/ZvSntiBjOLWYdqvI1N0gNWX070NCFDd+/WaU ujXVfb5Ix/w5OPEVpRwQ6kuh+lOW7esxGcul8vC18N4y7y6qAHE9HWKbsEEc1Rdbd91I=; Received: from [127.0.0.1] (helo=sfs-ml-4.v29.lw.sourceforge.com) by sfs-ml-4.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1vhqX2-0003C5-NU; Mon, 19 Jan 2026 14:47:04 +0000 Received: from [172.30.29.66] (helo=mx.sourceforge.net) by sfs-ml-4.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1vhqX1-0003Bz-Hh for linux-f2fs-devel@lists.sourceforge.net; Mon, 19 Jan 2026 14:47:03 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=teNaU+J26crTj/WEsr4FSZ98zxDh1+1gWmmDAmI2KiE=; b=is0SZm48ys1lW2I6xCjC5Egj/M IvN3/nWwQfcq4EUll6wMKfDkVggZT/IrFuVhColyifxrER3A7U/v6RifBtMxkMZOYdAooG5YIq/6j qehsAZBPoBh+jcICuAlC7Mzb85UPr+Xh2XO9ac40QnyYrGvquc4NMdrXCYfp0CSV2sKY=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=teNaU+J26crTj/WEsr4FSZ98zxDh1+1gWmmDAmI2KiE=; b=CYqTSfkF182FAvvmlr7UgrGX5v SVJVvXXofcL6Ug9tialX+UKL53ZR4uzDxvb1NaJCV4sWa5niUZNOtvclBbJMBZA/q8ueoGFm6o8fp JV9qcaqlGkdssNuSdGgVLE3vwAVNsB+hNkjJ0T+gm5cegcxtMdipA3DpNE6D21jlhhU8=; Received: from tor.source.kernel.org ([172.105.4.254]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1vhqX1-0000Eh-1h for linux-f2fs-devel@lists.sourceforge.net; Mon, 19 Jan 2026 14:47:03 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 7B09460135 for ; Mon, 19 Jan 2026 14:46:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DC267C2BC87; Mon, 19 Jan 2026 14:46:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768834012; bh=cpepyOoJYyqrPZNpjm50qjy8to4U+hnkpMNW8x4AblY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uK5hUso0baL+dnPeqSOGm75+ZcRGbhrcp4pSAAR73EGl6uCAGEn2PKA7UTpjZaMnu YdcAEfBGbiaqrEOni6hoFjI+MC+vuFz6Aj21ENTFboUtATS6M1DMVlVbPquFLBwRdX W8/BjPbW4LQdkHlej4WCTSr2hsMWd7ti5vxekt7Buq9IjFYzgCz9w3E0KJ7jXex9XP RpH21Vn3IOgbLw/fp+SU8whSUg5F5hmFtcwCCRiedHavMTqXfdTTQ91+VPr1Hd+nC0 iB+xgFNL9vcb6X0d9kcqCDV3ruXuy/n8zPrOqg0kTS36JsGS5fgO4n7nPIq3WIwyeK G1hlyMk/QoUnQ== To: jaegeuk@kernel.org Date: Mon, 19 Jan 2026 21:32:30 +0800 Message-Id: <20260119133230.16481-2-chao@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20260119133230.16481-1-chao@kernel.org> References: <20260119133230.16481-1-chao@kernel.org> MIME-Version: 1.0 X-Headers-End: 1vhqX1-0000Eh-1h Subject: [f2fs-dev] [PATCH 2/2] f2fs: introduce FAULT_SKIP_WRITE X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Chao Yu via Linux-f2fs-devel Reply-To: Chao Yu Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net In order to simulate skipped write during enable_checkpoint(). Signed-off-by: Chao Yu --- Documentation/ABI/testing/sysfs-fs-f2fs | 1 + Documentation/filesystems/f2fs.rst | 1 + fs/f2fs/data.c | 4 ++++ fs/f2fs/f2fs.h | 1 + fs/f2fs/super.c | 1 + 5 files changed, 8 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 7398b369784c..9a8ec2290f68 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -744,6 +744,7 @@ Description: Support configuring fault injection type, should be FAULT_ATOMIC_TIMEOUT 0x00400000 (1000ms) FAULT_VMALLOC 0x00800000 FAULT_LOCK_TIMEOUT 0x01000000 (1000ms) + FAULT_SKIP_WRITE 0x02000000 =========================== ========== What: /sys/fs/f2fs//discard_io_aware_gran diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst index fc005f2eaf86..7e4031631286 100644 --- a/Documentation/filesystems/f2fs.rst +++ b/Documentation/filesystems/f2fs.rst @@ -218,6 +218,7 @@ fault_type=%d Support configuring fault injection type, should be FAULT_ATOMIC_TIMEOUT 0x00400000 (1000ms) FAULT_VMALLOC 0x00800000 FAULT_LOCK_TIMEOUT 0x01000000 (1000ms) + FAULT_SKIP_WRITE 0x02000000 =========================== ========== mode=%s Control block allocation mode which supports "adaptive" and "lfs". In "lfs" mode, there should be no random diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 00108d5881aa..830c8090767e 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -2926,6 +2926,10 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio) goto got_it; } + if (is_sbi_flag_set(fio->sbi, SBI_ENABLE_CHECKPOINT) && + time_to_inject(fio->sbi, FAULT_SKIP_WRITE)) + return -EINVAL; + /* Deadlock due to between page->lock and f2fs_lock_op */ if (fio->need_lock == LOCK_REQ && !f2fs_trylock_op(fio->sbi, &lc)) return -EAGAIN; diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 52cec6b3ecf0..3a8e1dcdcd69 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -66,6 +66,7 @@ enum { FAULT_ATOMIC_TIMEOUT, FAULT_VMALLOC, FAULT_LOCK_TIMEOUT, + FAULT_SKIP_WRITE, FAULT_MAX, }; diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 0afe9f829058..5d8b2e812340 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -70,6 +70,7 @@ const char *f2fs_fault_name[FAULT_MAX] = { [FAULT_ATOMIC_TIMEOUT] = "atomic timeout", [FAULT_VMALLOC] = "vmalloc", [FAULT_LOCK_TIMEOUT] = "lock timeout", + [FAULT_SKIP_WRITE] = "skip write", }; int f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned long rate, -- 2.40.1 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel