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 5123D3A254C for ; Wed, 16 Sep 2026 01:55:03 +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=1789523708; cv=none; b=Yx6cdcOkpKekbKtdZOUwfa/ynHnmCvm07fZr9V73ZcAkOokr9JSeuZxfyT+dGS150kw7emyDV4uUsTrOaudPVFifqiiZijYlS/7dYlhl37mogpHxkZTzPKEcoRwkEGay6EsoRqEI8q5S5PhQy3ApgjBI/ZAz4JTMEDcgBqHv1a8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789523708; c=relaxed/simple; bh=bV9lG98iH6Wx78JCGOGAJ5oPvhTA7Kq5hKvj9x3GxxI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=LPVsAU7y2V2saMmP3rps/+WTqHHvSxOCYF+OHPosUgmZGWGPWCACFoeargzXniqSJaov7wF4YTCgJb/W7UjYgJ2/TlE5zfdOeZjiCBMnMFx1CjdH/yRoDs4MXHVUszTuu56z2nHLFNS2OhnpeEI3SszZo7I9UKbKbf2GDia6ROk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=m3lt3mmY; 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="m3lt3mmY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9B0781F0089D; Wed, 16 Sep 2026 01:54:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789523699; bh=8iezvk0aqFV3s8RKr5k1FFGYRRAyKBJ6p1J4i3PzFb4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=m3lt3mmY050HLOdMF8pHwwYX1xwtKZ3DaXpLyIsviecf7WVF7KVZ5HkYSvvihRV7t yqYXD+BilXH7pw5kkv9v26OatyeBQCWq2nMv50u7bvukrqusGpXW1O60j1Vu6uWz9E XzsEYc6xsbdCKCf3AIijITypyf6NrjFe3G7Xg/DG414XGFxfH/Xt0rvGw290rmwLso HAn6CPqkoOKmEMfVvHkWknvwz6eceAUbAiTxmTLRbYtV3p7weh/M9TA3fKqUr/XzLJ CGS61+FzU07sdq1vrktn02BzLDQbNCC0rGg/GvwlbqNPeY/4WyOBMv/qz5NEXGTS20 ZIKiB3eDZgL7A== From: Chao Yu To: jaegeuk@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu Subject: [PATCH v8 10/12] f2fs: cache: support fault injection Date: Wed, 16 Sep 2026 09:54:38 +0800 Message-ID: <20260916015440.2232938-11-chao@kernel.org> X-Mailer: git-send-email 2.55.0.1032.g73a4cd73de-goog In-Reply-To: <20260916015440.2232938-1-chao@kernel.org> References: <20260916015440.2232938-1-chao@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: 8bit From: Chao Yu This patch adds fault injection support for metadata cache allocations to improve error-path test coverage. - it integrates entry allocations with FAULT_KMALLOC Signed-off-by: Chao Yu --- fs/f2fs/cache.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/fs/f2fs/cache.c b/fs/f2fs/cache.c index 3e6a198ef3b3..27624b6799a9 100644 --- a/fs/f2fs/cache.c +++ b/fs/f2fs/cache.c @@ -154,23 +154,27 @@ static struct f2fs_cached_block *f2fs_create_cache( struct f2fs_cached_block_list *cache, unsigned long index, bool nofail) { + struct f2fs_sb_info *sbi = cache->sbi; struct f2fs_cached_block *entry; unsigned int flags = GFP_NOFS; if (index == ULONG_MAX) return ERR_PTR(-ERANGE); - if (nofail) + if (nofail) { flags |= __GFP_NOFAIL; - - entry = kzalloc_obj(*entry, flags); - if (!entry) - return ERR_PTR(-ENOMEM); - - entry->data = kmalloc(cache->sbi->blocksize, flags); - if (!entry->data) { - kfree(entry); - return ERR_PTR(-ENOMEM); + entry = kzalloc_obj(*entry, flags); + entry->data = kmalloc(sbi->blocksize, flags); + } else { + entry = f2fs_kzalloc(sbi, sizeof(*entry), flags); + if (!entry) + return ERR_PTR(-ENOMEM); + + entry->data = f2fs_kmalloc(sbi, sbi->blocksize, flags); + if (!entry->data) { + kfree(entry); + return ERR_PTR(-ENOMEM); + } } entry->index = index; -- 2.49.0