- make HEAD from b_post_cmd3

[fs/lustre-release.git] / lustre / include / lustre_ucache.h

diff --git a/lustre/include/lustre_ucache.h b/lustre/include/lustre_ucache.h
index 16b5c1a..0cba634 100644 (file)
--- a/lustre/include/lustre_ucache.h
+++ b/lustre/include/lustre_ucache.h
@@ -27,22 +27,74 @@
 #define UC_CACHE_CLEAR_INVALID(i)   (i)->ue_flags &= ~UC_CACHE_INVALID
 #define UC_CACHE_CLEAR_EXPIRED(i)   (i)->ue_flags &= ~UC_CACHE_EXPIRED
 
+struct upcall_cache_entry;
+
+struct mdt_setxid_perm {
+        lnet_nid_t      mp_nid;
+        __u32           mp_perm;
+};
+
+struct mdt_identity {
+        struct upcall_cache_entry *mi_uc_entry;
+        uid_t                      mi_uid;
+        gid_t                      mi_gid;
+        struct group_info         *mi_ginfo;
+        int                        mi_nperms;
+        struct mdt_setxid_perm    *mi_perms;
+};
+
+struct rmtacl_upcall_data {
+        uid_t                      aud_uid;
+        gid_t                      aud_gid;
+        char                      *aud_cmd;
+};
+
+struct mdt_rmtacl {
+        uid_t                      ra_uid;
+        gid_t                      ra_gid;
+        __u32                      ra_handle;
+        char                      *ra_cmd;
+        char                      *ra_buf;
+};
+
 struct upcall_cache_entry {
         struct list_head        ue_hash;
         __u64                   ue_key;
-        __u64                   ue_primary;
-        struct group_info      *ue_group_info;
+//        __u64                   ue_primary;
+//        struct group_info      *ue_group_info;
         atomic_t                ue_refcount;
         int                     ue_flags;
         cfs_waitq_t             ue_waitq;
         cfs_time_t              ue_acquire_expire;
         cfs_time_t              ue_expire;
+        union {
+                struct mdt_identity     identity;
+                struct mdt_rmtacl       acl;
+        } u;
 };
 
 #define UC_CACHE_HASH_SIZE        (128)
 #define UC_CACHE_HASH_INDEX(id)   ((id) & (UC_CACHE_HASH_SIZE - 1))
 #define UC_CACHE_UPCALL_MAXPATH   (1024UL)
 
+struct upcall_cache;
+
+struct upcall_cache_ops {
+        void            (*init_entry)(struct upcall_cache_entry *, void *args);
+        void            (*free_entry)(struct upcall_cache *,
+                                      struct upcall_cache_entry *);
+        int             (*upcall_compare)(struct upcall_cache *,
+                                          struct upcall_cache_entry *,
+                                          __u64 key, void *args);
+        int             (*downcall_compare)(struct upcall_cache *,
+                                            struct upcall_cache_entry *,
+                                            __u64 key, void *args);
+        int             (*do_upcall)(struct upcall_cache *,
+                                     struct upcall_cache_entry *);
+        int             (*parse_downcall)(struct upcall_cache *,
+                                          struct upcall_cache_entry *, void *);
+};
+
 struct upcall_cache {
         struct list_head        uc_hashtable[UC_CACHE_HASH_SIZE];
         spinlock_t              uc_lock;
@@ -51,8 +103,23 @@ struct upcall_cache {
         char                    uc_upcall[UC_CACHE_UPCALL_MAXPATH];
         cfs_time_t              uc_acquire_expire;      /* jiffies */
         cfs_time_t              uc_entry_expire;        /* jiffies */
+        struct upcall_cache_ops *uc_ops;
 };
 
+struct upcall_cache_entry *upcall_cache_get_entry(struct upcall_cache *cache,
+                                                  __u64 key, void *args);
+void upcall_cache_put_entry(struct upcall_cache *cache,
+                            struct upcall_cache_entry *entry);
+int upcall_cache_downcall(struct upcall_cache *cache, __u32 err, __u64 key,
+                          void *args);
+void upcall_cache_flush_idle(struct upcall_cache *cache);
+void upcall_cache_flush_all(struct upcall_cache *cache);
+void upcall_cache_flush_one(struct upcall_cache *cache, __u64 key, void *args);
+struct upcall_cache *upcall_cache_init(const char *name, const char *upcall,
+                                       struct upcall_cache_ops *ops);
+void upcall_cache_cleanup(struct upcall_cache *cache);
+
+#if 0
 struct upcall_cache_entry *upcall_cache_get_entry(struct upcall_cache *hash,
                                                   __u64 key, __u32 primary,
                                                   __u32 ngroups, __u32 *groups);
@@ -65,4 +132,5 @@ void upcall_cache_flush_all(struct upcall_cache *cache);
 struct upcall_cache *upcall_cache_init(const char *name);
 void upcall_cache_cleanup(struct upcall_cache *hash);
 
+#endif
 #endif /* _UPCALL_CACHE_H */