diff options
| -rw-r--r-- | include/linux/fs.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 43b3a7cf6750..ec867f112fd5 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -3754,6 +3754,24 @@ static inline bool sb_has_encoding(const struct super_block *sb) return !!sb_encoding(sb); } +/* + * Compare if two super blocks have the same encoding and flags + */ +static inline bool sb_same_encoding(const struct super_block *sb1, + const struct super_block *sb2) +{ +#if IS_ENABLED(CONFIG_UNICODE) + if (sb1->s_encoding == sb2->s_encoding) + return true; + + return (sb1->s_encoding && sb2->s_encoding && + (sb1->s_encoding->version == sb2->s_encoding->version) && + (sb1->s_encoding_flags == sb2->s_encoding_flags)); +#else + return true; +#endif +} + int may_setattr(struct mnt_idmap *idmap, struct inode *inode, unsigned int ia_valid); int setattr_prepare(struct mnt_idmap *, struct dentry *, struct iattr *); |