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f2fs: give some messages for inline_xattr_size

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This patch adds some kernel messages when user sets wrong inline_xattr_size.

Fixes: 500e0b28ecd3 ("f2fs: fix to check inline_xattr_size boundary correctly")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2019-03-12 11:49:53 -07:00
parent 86109c9064
commit 70db5b04cb
1 changed files with 11 additions and 6 deletions
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17
fs/f2fs/super.c
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@ -821,6 +821,8 @@ static int parse_options(struct super_block *sb, char *options)
}
if (test_opt(sbi, INLINE_XATTR_SIZE)) {
int min_size, max_size;
if (!f2fs_sb_has_extra_attr(sbi) ||
!f2fs_sb_has_flexible_inline_xattr(sbi)) {
f2fs_msg(sb, KERN_ERR,
@ -834,15 +836,18 @@ static int parse_options(struct super_block *sb, char *options)
"set with inline_xattr option");
return -EINVAL;
}
if (F2FS_OPTION(sbi).inline_xattr_size <
sizeof(struct f2fs_xattr_header) / sizeof(__le32) ||
F2FS_OPTION(sbi).inline_xattr_size >
DEF_ADDRS_PER_INODE -
min_size = sizeof(struct f2fs_xattr_header) / sizeof(__le32);
max_size = DEF_ADDRS_PER_INODE -
F2FS_TOTAL_EXTRA_ATTR_SIZE / sizeof(__le32) -
DEF_INLINE_RESERVED_SIZE -
MIN_INLINE_DENTRY_SIZE / sizeof(__le32)) {
MIN_INLINE_DENTRY_SIZE / sizeof(__le32);
if (F2FS_OPTION(sbi).inline_xattr_size < min_size ||
F2FS_OPTION(sbi).inline_xattr_size > max_size) {
f2fs_msg(sb, KERN_ERR,
"inline xattr size is out of range");
"inline xattr size is out of range: %d ~ %d",
min_size, max_size);
return -EINVAL;
}
}