diff options
Diffstat (limited to 'include/linux/dcache.h')
| -rw-r--r-- | include/linux/dcache.h | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h index c965e4469499..aae1cdb76851 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -11,6 +11,7 @@ #include <linux/rcupdate.h> #include <linux/lockref.h> #include <linux/stringhash.h> +#include <linux/wait.h> struct path; struct vfsmount; @@ -54,6 +55,11 @@ struct qstr { #define QSTR_INIT(n,l) { { { .len = l } }, .name = n } +extern const char empty_string[]; +extern const struct qstr empty_name; +extern const char slash_string[]; +extern const struct qstr slash_name; + struct dentry_stat_t { long nr_dentry; long nr_unused; @@ -112,7 +118,7 @@ struct dentry { struct hlist_bl_node d_in_lookup_hash; /* only for in-lookup ones */ struct rcu_head d_rcu; } d_u; -}; +} __randomize_layout; /* * dentry->d_lock spinlock nesting subclasses: @@ -562,7 +568,7 @@ static inline struct dentry *d_backing_dentry(struct dentry *upper) * @inode: inode to select the dentry from multiple layers (can be NULL) * @flags: open flags to control copy-up behavior * - * If dentry is on an union/overlay, then return the underlying, real dentry. + * If dentry is on a union/overlay, then return the underlying, real dentry. * Otherwise return the dentry itself. * * See also: Documentation/filesystems/vfs.txt @@ -581,7 +587,7 @@ static inline struct dentry *d_real(struct dentry *dentry, * d_real_inode - Return the real inode * @dentry: The dentry to query * - * If dentry is on an union/overlay, then return the underlying, real inode. + * If dentry is on a union/overlay, then return the underlying, real inode. * Otherwise return d_inode(). */ static inline struct inode *d_real_inode(const struct dentry *dentry) @@ -590,5 +596,11 @@ static inline struct inode *d_real_inode(const struct dentry *dentry) return d_backing_inode(d_real((struct dentry *) dentry, NULL, 0)); } +struct name_snapshot { + const unsigned char *name; + unsigned char inline_name[DNAME_INLINE_LEN]; +}; +void take_dentry_name_snapshot(struct name_snapshot *, struct dentry *); +void release_dentry_name_snapshot(struct name_snapshot *); #endif /* __LINUX_DCACHE_H */ |