From nobody Mon Feb 9 15:32:25 2026 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.3]) (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 53278309EEB; Tue, 18 Nov 2025 08:26:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.3 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763454407; cv=none; b=UdT5WIwyfpkoRdE4ikOXcb8EUX9y/b9Zv9Sv8z/hA0EVXrKlsIeTF+HMwZoNoJpqVkYODijlabswTW3uSzPh/rVjVwBVz5L3hipc6qRUnGdA62YbXLmgFUyEFcJfNyUJffwARfuZ01J0PNineH8ksPdvJufQs+5Sxgp45BIMgTk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763454407; c=relaxed/simple; bh=cTR2HfbxWKCzKckLSvc1kTIfiBdM++AQ4VcXTDmra74=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GSLVmpJvOZdsHJU8vbrU5ADqjIOSWWkhqZUgJKI/o5ANazPtSZGBOvmLB2Xk61aRWbtokNMut0jsrVeZE3HdHUUqT91niakjBAgXVKbVdi5sPzA4k8+wlTYQ/rWWH6t5LRZPl7gAzefHExSFxU6V0xn2A1/nvfS5gCC8zmO+GzU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=mrCISs1m; arc=none smtp.client-ip=117.135.210.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="mrCISs1m" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=Uv /YobMX5Vm4b7+G2HN+8lcF5mEX1FDlwqmc0s4H2ig=; b=mrCISs1mOW0g2yn7nG W1coujKxtfBSwOpk/YPeW9h1o8HslkQB5koGHKYIbip6IItPmAwR9OkvgWIYV38A Qt4+dmfTcYPwu7iEQ9ejdGXmI4cH39PU9SHcrwtUt6YQHWiR4d40Hg3s2AKNyM9d 337uAKEpBBElaXuvoAHhOrK/o= Received: from czl-ubuntu-pc.. (unknown []) by gzsmtp3 (Coremail) with SMTP id PigvCgAnu_KILRxpyC6zEQ--.29019S7; Tue, 18 Nov 2025 16:25:46 +0800 (CST) From: Chi Zhiling To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Alexander Viro , Christian Brauner , Jan Kara , Matthew Wilcox , Namjae Jeon , Sungjong Seo , Yuezhang Mo , Chi Zhiling Subject: [RFC PATCH 5/7] exfat: improve exfat_find_last_cluster Date: Tue, 18 Nov 2025 16:22:06 +0800 Message-ID: <20251118082208.1034186-6-chizhiling@163.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251118082208.1034186-1-chizhiling@163.com> References: <20251118082208.1034186-1-chizhiling@163.com> 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 X-CM-TRANSID: PigvCgAnu_KILRxpyC6zEQ--.29019S7 X-Coremail-Antispam: 1Uf129KBjvdXoW7Jw4UAryfCr15ZFy8Cw1xKrg_yoWkZFc_uw 18KrykWryYyr1Syr1DC3yayFWSya1DZ3y8urW7tr9Fq3s8J397ZF4DXF9rurWjkrs7AF95 Jr95Ar93Ga48ujkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUb9mR5UUUUU== X-CM-SenderInfo: hfkl6xxlol0wi6rwjhhfrp/1tbiFB8KnWkcJbfcyQAAsu Content-Type: text/plain; charset="utf-8" From: Chi Zhiling Since exfat_ent_get support cache buffer head, let's apply it to exfat_find_last_cluster. Signed-off-by: Chi Zhiling --- fs/exfat/fatent.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/exfat/fatent.c b/fs/exfat/fatent.c index 08f9a817af28..d980d17176c2 100644 --- a/fs/exfat/fatent.c +++ b/fs/exfat/fatent.c @@ -298,6 +298,7 @@ int exfat_free_cluster(struct inode *inode, struct exfa= t_chain *p_chain) int exfat_find_last_cluster(struct super_block *sb, struct exfat_chain *p_= chain, unsigned int *ret_clu) { + struct buffer_head *bh =3D NULL; unsigned int clu, next; unsigned int count =3D 0; =20 @@ -310,10 +311,11 @@ int exfat_find_last_cluster(struct super_block *sb, s= truct exfat_chain *p_chain, do { count++; clu =3D next; - if (exfat_ent_get(sb, clu, &next, NULL)) + if (exfat_ent_get(sb, clu, &next, &bh)) return -EIO; } while (next !=3D EXFAT_EOF_CLUSTER && count <=3D p_chain->size); =20 + brelse(bh); if (p_chain->size !=3D count) { exfat_fs_error(sb, "bogus directory size (clus : ondisk(%d) !=3D counted(%d))", --=20 2.43.0