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Diffstat (limited to 'include/linux/dcache.h')
-rw-r--r--include/linux/dcache.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index ee6c26d142c3..1a87760d6532 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -168,6 +168,7 @@ struct dentry_operations {
void (*d_iput)(struct dentry *, struct inode *);
char *(*d_dname)(struct dentry *, char *, int);
struct vfsmount *(*d_automount)(struct path *);
+ int (*d_manage)(struct dentry *, bool);
} ____cacheline_aligned;
/*
@@ -214,8 +215,9 @@ struct dentry_operations {
#define DCACHE_MOUNTED 0x10000 /* is a mountpoint */
#define DCACHE_NEED_AUTOMOUNT 0x20000 /* handle automount on this dir */
+#define DCACHE_MANAGE_TRANSIT 0x40000 /* manage transit from this dirent */
#define DCACHE_MANAGED_DENTRY \
- (DCACHE_MOUNTED|DCACHE_NEED_AUTOMOUNT)
+ (DCACHE_MOUNTED|DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT)
extern seqlock_t rename_lock;
@@ -404,7 +406,12 @@ static inline void dont_mount(struct dentry *dentry)
extern void dput(struct dentry *);
-static inline int d_mountpoint(struct dentry *dentry)
+static inline bool d_managed(struct dentry *dentry)
+{
+ return dentry->d_flags & DCACHE_MANAGED_DENTRY;
+}
+
+static inline bool d_mountpoint(struct dentry *dentry)
{
return dentry->d_flags & DCACHE_MOUNTED;
}