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authorChao Yu <yuchao0@huawei.com>2018-01-27 17:29:48 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2018-03-13 08:05:31 +0900
commit4d817ae099883b08fddd46dee3a916bbf93e9161 (patch)
treeb228d113b231971ef73a24097a21d785feb0863a /fs/f2fs/super.c
parentb94929d975c8423defc9aededb0f499ff936b509 (diff)
downloadlinux-4d817ae099883b08fddd46dee3a916bbf93e9161.tar.gz
f2fs: restrict inline_xattr_size configuration
This patch limits to enable inline_xattr_size mount option only if
both extra_attr and flexible_inline_xattr feature is on in current
image.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
-rw-r--r--fs/f2fs/super.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 3db1f02ed8c2..9587ca0bcd3e 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -699,6 +699,13 @@ static int parse_options(struct super_block *sb, char *options)
 	}
 
 	if (test_opt(sbi, INLINE_XATTR_SIZE)) {
+		if (!f2fs_sb_has_extra_attr(sb) ||
+			!f2fs_sb_has_flexible_inline_xattr(sb)) {
+			f2fs_msg(sb, KERN_ERR,
+					"extra_attr or flexible_inline_xattr "
+					"feature is off");
+			return -EINVAL;
+		}
 		if (!test_opt(sbi, INLINE_XATTR)) {
 			f2fs_msg(sb, KERN_ERR,
 					"inline_xattr_size option should be "