Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / include / linux / dcache.h

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 50be290..4607ee9 100644 (file)
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -8,7 +8,6 @@
 #include <linux/spinlock.h>
 #include <linux/cache.h>
 #include <linux/rcupdate.h>
-#include <asm/bug.h>
 
 struct nameidata;
 struct vfsmount;
@@ -88,22 +87,30 @@ struct dentry {
                                         * negative */
        /*
         * The next three fields are touched by __d_lookup.  Place them here
-        * so they all fit in a 16-byte range, with 16-byte alignment.
+        * so they all fit in a cache line.
         */
+       struct hlist_node d_hash;       /* lookup hash list */
        struct dentry *d_parent;        /* parent directory */
        struct qstr d_name;
 
        struct list_head d_lru;         /* LRU list */
-       struct list_head d_child;       /* child of parent list */
+       /*
+        * d_child and d_rcu can share memory
+        */
+       union {
+               struct list_head d_child;       /* child of parent list */
+               struct rcu_head d_rcu;
+       } d_u;
        struct list_head d_subdirs;     /* our children */
        struct list_head d_alias;       /* inode alias list */
        unsigned long d_time;           /* used by d_revalidate */
        struct dentry_operations *d_op;
        struct super_block *d_sb;       /* The root of the dentry tree */
        void *d_fsdata;                 /* fs-specific data */
-       struct rcu_head d_rcu;
+       void *d_extra_attributes;       /* TUX-specific data */
+#ifdef CONFIG_PROFILING
        struct dcookie_struct *d_cookie; /* cookie, if any */
-       struct hlist_node d_hash;       /* lookup hash list */  
+#endif
        int d_mounted;
        unsigned char d_iname[DNAME_INLINE_LEN_MIN];    /* small names */
 };
@@ -156,6 +163,8 @@ d_iput:             no              no              no       yes
 #define DCACHE_REFERENCED      0x0008  /* Recently used, don't discard. */
 #define DCACHE_UNHASHED                0x0010  
 
+#define DCACHE_INOTIFY_PARENT_WATCHED  0x0020 /* Parent inode is watched */
+
 extern spinlock_t dcache_lock;
 
 /**
@@ -211,6 +220,7 @@ extern void shrink_dcache_sb(struct super_block *);
 extern void shrink_dcache_parent(struct dentry *);
 extern void shrink_dcache_anon(struct hlist_head *);
 extern int d_invalidate(struct dentry *);
+extern void flush_dentry_attributes(void);
 
 /* only used at mount-time */
 extern struct dentry * d_alloc_root(struct inode *);
@@ -267,12 +277,17 @@ extern void d_move(struct dentry *, struct dentry *);
 /* appendix may either be NULL or be used for transname suffixes */
 extern struct dentry * d_lookup(struct dentry *, struct qstr *);
 extern struct dentry * __d_lookup(struct dentry *, struct qstr *);
+extern struct dentry * d_hash_and_lookup(struct dentry *, struct qstr *);
 
 /* validate "insecure" dentry pointer */
 extern int d_validate(struct dentry *, struct dentry *);
 
+char * __d_path( struct dentry *dentry, struct vfsmount *vfsmnt,
+                struct dentry *root, struct vfsmount *rootmnt,
+                char *buffer, int buflen);
+
 extern char * d_path(struct dentry *, struct vfsmount *, char *, int);
-  
+
 /* Allocation counts.. */
 
 /**
@@ -329,6 +344,7 @@ static inline int d_mountpoint(struct dentry *dentry)
 }
 
 extern struct vfsmount *lookup_mnt(struct vfsmount *, struct dentry *);
+extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
 extern struct dentry *lookup_create(struct nameidata *nd, int is_dir);
 
 extern int sysctl_vfs_cache_pressure;