#define OBD_LDLM_DEVICENAME "ldlm"
-typedef int cluster_host;
-typedef int cluster_pid;
-
typedef enum {
ELDLM_OK = 0,
ELDLM_LOCK_CHANGED = 300,
+ ELDLM_LOCK_ABORTED = 301,
+ ELDLM_RESOURCE_FREED = 302,
ELDLM_NAMESPACE_EXISTS = 400,
ELDLM_BAD_NAMESPACE = 401
} ldlm_error_t;
+#define LDLM_NAMESPACE_SERVER 0
+#define LDLM_NAMESPACE_CLIENT 1
+
#define LDLM_FL_LOCK_CHANGED (1 << 0)
#define LDLM_FL_BLOCK_GRANTED (1 << 1)
#define LDLM_FL_BLOCK_CONV (1 << 2)
#define LDLM_FL_BLOCK_WAIT (1 << 3)
-#define LDLM_FL_DYING (1 << 4)
+#define LDLM_FL_CBPENDING (1 << 4)
+#define LDLM_FL_AST_SENT (1 << 5)
+#define LDLM_FL_DESTROYED (1 << 6)
#define L2B(c) (1 << c)
*/
struct ldlm_namespace {
- struct obd_device *ns_obddev;
- __u32 ns_local; /* is this a local lock tree? */
- struct list_head *ns_hash; /* hash table for ns */
- __u32 ns_refcount; /* count of resources in the hash */
+ char *ns_name;
+ struct ptlrpc_client ns_rpc_client; /* used for revocation callbacks */
+ __u32 ns_client; /* is this a client-side lock tree? */
+ struct list_head *ns_hash; /* hash table for ns */
+ __u32 ns_refcount; /* count of resources in the hash */
struct list_head ns_root_list; /* all root resources in ns */
- spinlock_t ns_lock; /* protects hash, refcount, list */
+ struct lustre_lock ns_lock; /* protects hash, refcount, list */
};
/*
struct ldlm_lock;
-typedef int (*ldlm_lock_callback)(struct ldlm_lock *lock, struct ldlm_lock *new,
- void *data, __u32 data_len);
+typedef int (*ldlm_lock_callback)(struct lustre_handle *lockh,
+ struct ldlm_lock_desc *new, void *data,
+ __u32 data_len);
struct ldlm_lock {
+ __u64 l_random;
+ int l_refc;
struct ldlm_resource *l_resource;
struct ldlm_lock *l_parent;
struct list_head l_children;
struct list_head l_childof;
struct list_head l_res_link; /*position in one of three res lists*/
+ atomic_t l_refcount;
ldlm_mode_t l_req_mode;
ldlm_mode_t l_granted_mode;
struct ptlrpc_connection *l_connection;
struct ptlrpc_client *l_client;
__u32 l_flags;
- struct ldlm_handle l_remote_handle;
+ struct lustre_handle l_remote_handle;
void *l_data;
__u32 l_data_len;
+ void *l_cookie;
+ int l_cookie_len;
struct ldlm_extent l_extent;
- //void *l_event;
- //XXX cluster_host l_holder;
__u32 l_version[RES_VERSION_SIZE];
__u32 l_readers;
* it's no longer in use. If the lock is not granted, a process sleeps
* on this waitq to learn when it becomes granted. */
wait_queue_head_t l_waitq;
- spinlock_t l_lock;
};
typedef int (*ldlm_res_compat)(struct ldlm_lock *child, struct ldlm_lock *new);
-typedef int (*ldlm_res_policy)(struct ldlm_resource *parent,
- struct ldlm_extent *req_ex,
- struct ldlm_extent *new_ex,
+typedef int (*ldlm_res_policy)(struct ldlm_lock *lock, void *req_cookie,
ldlm_mode_t mode, void *data);
-#define LDLM_PLAIN 0
-#define LDLM_EXTENT 1
-#define LDLM_MDSINTENT 2
+#define LDLM_PLAIN 10
+#define LDLM_EXTENT 11
+#define LDLM_MDSINTENT 12
-#define LDLM_MAX_TYPE 2
+#define LDLM_MIN_TYPE 10
+#define LDLM_MAX_TYPE 12
extern ldlm_res_compat ldlm_res_compat_table [];
extern ldlm_res_policy ldlm_res_policy_table [];
ldlm_mode_t lr_most_restr;
__u32 lr_type; /* PLAIN, EXTENT, or MDSINTENT */
struct ldlm_resource *lr_root;
- //XXX cluster_host lr_master;
__u64 lr_name[RES_NAME_SIZE];
__u32 lr_version[RES_VERSION_SIZE];
- __u32 lr_refcount;
- spinlock_t lr_lock; /* protects lists, refcount */
+ atomic_t lr_refcount;
+ void *lr_tmp;
};
+struct ldlm_ast_work {
+ struct ldlm_lock *w_lock;
+ int w_blocking;
+ struct ldlm_lock_desc w_desc;
+ struct list_head w_list;
+ void *w_data;
+ int w_datalen;
+};
+
static inline struct ldlm_extent *ldlm_res2extent(struct ldlm_resource *res)
{
return (struct ldlm_extent *)(res->lr_name);
}
-static inline void *ldlm_handle2object(struct ldlm_handle *handle)
-{
- if (handle)
- return (void *)(unsigned long)(handle->addr);
- return NULL;
-}
+extern struct obd_ops ldlm_obd_ops;
-static inline void ldlm_object2handle(void *object, struct ldlm_handle *handle)
-{
- handle->addr = (__u64)(unsigned long)object;
-}
-extern struct obd_ops ldlm_obd_ops;
+extern char *ldlm_lockname[];
+extern char *ldlm_typename[];
+
+#define LDLM_DEBUG(lock, format, a...) \
+do { \
+ CDEBUG(D_DLMTRACE, "### " format \
+ " (%s: lock %p mode %s/%s on res %Lu (rc %d) " \
+ " type %s remote %Lx)\n" , ## a, \
+ lock->l_resource->lr_namespace->ns_name, lock, \
+ ldlm_lockname[lock->l_granted_mode], \
+ ldlm_lockname[lock->l_req_mode], \
+ lock->l_resource->lr_name[0], \
+ atomic_read(&lock->l_resource->lr_refcount), \
+ ldlm_typename[lock->l_resource->lr_type], \
+ lock->l_remote_handle.addr); \
+} while (0)
+
+#define LDLM_DEBUG_NOLOCK(format, a...) \
+ CDEBUG(D_DLMTRACE, "### " format "\n" , ## a)
/* ldlm_extent.c */
int ldlm_extent_compat(struct ldlm_lock *, struct ldlm_lock *);
-int ldlm_extent_policy(struct ldlm_resource *, struct ldlm_extent *,
- struct ldlm_extent *, ldlm_mode_t, void *);
+int ldlm_extent_policy(struct ldlm_lock *, void *, ldlm_mode_t, void *);
/* ldlm_lock.c */
-void ldlm_lock_free(struct ldlm_lock *lock);
+void ldlm_lock2handle(struct ldlm_lock *lock, struct lustre_handle *lockh);
+struct ldlm_lock *ldlm_handle2lock(struct lustre_handle *handle);
+void ldlm_lock2handle(struct ldlm_lock *lock, struct lustre_handle *lockh);
+void ldlm_lock_put(struct ldlm_lock *lock);
+void ldlm_lock_destroy(struct ldlm_lock *lock);
void ldlm_lock2desc(struct ldlm_lock *lock, struct ldlm_lock_desc *desc);
-void ldlm_lock_addref(struct ldlm_lock *lock, __u32 mode);
-void ldlm_lock_decref(struct ldlm_lock *lock, __u32 mode);
-void ldlm_grant_lock(struct ldlm_resource *res, struct ldlm_lock *lock);
-int ldlm_local_lock_match(struct ldlm_namespace *ns, __u64 *res_id, __u32 type,
- struct ldlm_extent *extent, ldlm_mode_t mode,
- struct ldlm_handle *lockh);
-ldlm_error_t ldlm_local_lock_create(struct ldlm_namespace *ns,
- struct ldlm_handle *parent_lock_handle,
- __u64 *res_id, __u32 type,
- ldlm_mode_t mode,
- void *data,
- __u32 data_len,
- struct ldlm_handle *lockh);
-ldlm_error_t ldlm_local_lock_enqueue(struct ldlm_handle *lockh,
- struct ldlm_extent *req_ex,
- int *flags,
- ldlm_lock_callback completion,
- ldlm_lock_callback blocking);
-struct ldlm_resource *ldlm_local_lock_convert(struct ldlm_handle *lockh,
- int new_mode, int *flags);
-struct ldlm_resource *ldlm_local_lock_cancel(struct ldlm_lock *lock);
+void ldlm_lock_addref(struct lustre_handle *lockh, __u32 mode);
+void ldlm_lock_addref_internal(struct ldlm_lock* , __u32 mode);
+void ldlm_lock_decref(struct lustre_handle *lockh, __u32 mode);
+void ldlm_grant_lock(struct ldlm_lock *lock);
+int ldlm_lock_match(struct ldlm_namespace *ns, __u64 *res_id, __u32 type,
+ void *cookie, int cookielen, ldlm_mode_t mode,
+ struct lustre_handle *lockh);
+struct ldlm_lock *
+ldlm_lock_create(struct ldlm_namespace *ns,
+ struct lustre_handle *parent_lock_handle,
+ __u64 *res_id, __u32 type, ldlm_mode_t mode, void *data,
+ __u32 data_len);
+ldlm_error_t ldlm_lock_enqueue(struct ldlm_lock *lock, void *cookie,
+ int cookie_len, int *flags,
+ ldlm_lock_callback completion,
+ ldlm_lock_callback blocking);
+struct ldlm_resource *ldlm_lock_convert(struct ldlm_lock *lock, int new_mode,
+ int *flags);
+void ldlm_lock_cancel(struct ldlm_lock *lock);
+void ldlm_run_ast_work(struct list_head *rpc_list);
void ldlm_reprocess_all(struct ldlm_resource *res);
void ldlm_lock_dump(struct ldlm_lock *lock);
int ldlm_test(struct obd_device *device, struct ptlrpc_connection *conn);
/* resource.c */
-struct ldlm_namespace *ldlm_namespace_new(struct obd_device *, __u32 local);
+struct ldlm_namespace *ldlm_namespace_new(char *name, __u32 local);
int ldlm_namespace_free(struct ldlm_namespace *ns);
+
+/* resource.c - internal */
struct ldlm_resource *ldlm_resource_get(struct ldlm_namespace *ns,
struct ldlm_resource *parent,
__u64 *name, __u32 type, int create);
+struct ldlm_resource *ldlm_resource_getref(struct ldlm_resource *res);
int ldlm_resource_put(struct ldlm_resource *res);
void ldlm_resource_add_lock(struct ldlm_resource *res, struct list_head *head,
struct ldlm_lock *lock);
-void ldlm_resource_del_lock(struct ldlm_lock *lock);
+void ldlm_resource_unlink_lock(struct ldlm_lock *lock);
void ldlm_res2desc(struct ldlm_resource *res, struct ldlm_resource_desc *desc);
void ldlm_resource_dump(struct ldlm_resource *res);
+int ldlm_lock_change_resource(struct ldlm_lock *lock, __u64 new_resid[3]);
/* ldlm_request.c */
-int ldlm_cli_enqueue(struct ptlrpc_client *cl, struct ptlrpc_connection *peer,
+int ldlm_cli_enqueue(struct ptlrpc_client *cl,
+ struct ptlrpc_connection *peer,
+ struct ptlrpc_request *req,
struct ldlm_namespace *ns,
- struct ldlm_handle *parent_lock_handle,
+ struct lustre_handle *parent_lock_handle,
__u64 *res_id,
__u32 type,
- struct ldlm_extent *req_ex,
+ void *cookie, int cookielen,
ldlm_mode_t mode,
int *flags,
+ ldlm_lock_callback callback,
void *data,
__u32 data_len,
- struct ldlm_handle *lockh);
-int ldlm_cli_callback(struct ldlm_lock *lock, struct ldlm_lock *new,
- void *data, __u32 data_len);
-int ldlm_cli_convert(struct ptlrpc_client *, struct ldlm_handle *,
+ struct lustre_handle *lockh);
+int ldlm_server_ast(struct lustre_handle *lockh, struct ldlm_lock_desc *new,
+ void *data, __u32 data_len);
+int ldlm_cli_convert(struct ptlrpc_client *, struct lustre_handle *,
int new_mode, int *flags);
-int ldlm_cli_cancel(struct ptlrpc_client *, struct ldlm_lock *);
-
+int ldlm_cli_cancel(struct lustre_handle *);
#endif /* __KERNEL__ */