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 F2F0C1862A for ; Tue, 23 Jun 2026 12:48:31 +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=1782218912; cv=none; b=SbS6o5NytJkA5bafs1m8NybpLq0gojSsY6JtUt1ET/fJNRODh2+nbMH2gTjWi6W5goaCeit10ze/rVoDX9VRXv3Ez1zddm7ALmtuwcoEZG9N50+eHaQGDIh/vJdSFxanLSDjL2fh7fBP1hugG/i59pUFqxW0kBdW5TCj3FUQolc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782218912; c=relaxed/simple; bh=CL/RLnbTit1/cfCi8W2eQ5isBNanioj9u23P22mStqo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=FjD7s4SBI+Cp8yGGIwP4OGtV46Ghg3UH8BOLI5p1TX+R66Ca37vGU2o6yvCVEtVMH4csdTqAE8yyAsnNyVyAlVyFsOfyQWFtReEi/6WhS57sJq4p2AHGKcY+vbxFwV+1smRkCsTeLFQICn6oxaNY3aDg00+HkAd1cX1Bk9uH/x4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kDRUmCzs; 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="kDRUmCzs" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6FEB31F000E9; Tue, 23 Jun 2026 12:48:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782218911; bh=fh2xVkXogjEIRKLrvZqDiERD59pJO7yOkJYWwq8xXLQ=; h=From:To:Cc:Subject:Date; b=kDRUmCzsNrg9wcUgdjdEYMjmZvGKeN6NuTqIa7mFF9flGdTjUaf5WAuzTZKUT/tOO jofEOu+GAEjp642g5H1mv2Gi0fkDodbSHbgr5HCtkBpithnIGhcP+JQl4aw6/zOEVz eKeBZmU+hQgAkG++MM4EJgiBc/GAzqpvqVj9Egp+OYqZK8x4Fj5iSIbqMdvADSkXZm ByqFcjjJcGACxKnSOqFPAq7hTsS8TatjbhhMvRgdf2/JBqrwT9TqCuR4o6olBJojRW Vo9F0JblPlSDCVBuf31XxXz6/hABXTGc4OFJQ47dymHt7vNOy7/dFFK01afPeZZNxS 4u8QXtVrsnAQg== From: Chao Yu To: jaegeuk@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu , stable@kernel.org Subject: [PATCH] f2fs: fix to avoid move_range and defragment on device_alias file Date: Tue, 23 Jun 2026 20:48:23 +0800 Message-ID: <20260623124823.1674416-1-chao@kernel.org> X-Mailer: git-send-email 2.55.0.rc0.786.g65d90a0328-goog Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit It's forbidden to migrate blocks of device alias file. Cc: stable@kernel.org Fixes: 128d333f0dff ("f2fs: introduce device aliasing file") Signed-off-by: Chao Yu --- fs/f2fs/file.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 4b52c56d71f0..f4facd409d9b 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -3083,6 +3083,9 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg) if (f2fs_readonly(sbi->sb)) return -EROFS; + if (IS_DEVICE_ALIASING(inode)) + return -EOPNOTSUPP; + if (copy_from_user(&range, (struct f2fs_defragment __user *)arg, sizeof(range))) return -EFAULT; @@ -3135,7 +3138,8 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in, if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode)) return -EINVAL; - if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst)) + if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst) || + IS_DEVICE_ALIASING(src) || IS_DEVICE_ALIASING(dst)) return -EOPNOTSUPP; if (pos_out < 0 || pos_in < 0) -- 2.49.0