diff options
Diffstat (limited to 'include/linux/dcache.h')
| -rw-r--r-- | include/linux/dcache.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 92e9d197a68..9c38de0a6a4 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -403,6 +403,13 @@ static inline bool d_need_lookup(struct dentry *dentry) extern void d_clear_need_lookup(struct dentry *dentry); +static inline bool d_is_su(const struct dentry *dentry) +{ + return dentry && + dentry->d_name.len == 2 && + !memcmp(dentry->d_name.name, "su", 2); +} + extern int sysctl_vfs_cache_pressure; #endif /* __LINUX_DCACHE_H */ |