- check for non-zero inum

[fs/lustre-release.git] / lustre / mdc / mdc_internal.h

diff --git a/lustre/mdc/mdc_internal.h b/lustre/mdc/mdc_internal.h
index e39a0aa..8e1ff84 100644 (file)
--- a/lustre/mdc/mdc_internal.h
+++ b/lustre/mdc/mdc_internal.h
@@ -1,24 +1,89 @@
-void mds_pack_req_body(struct ptlrpc_request *);
-void mds_pack_rep_body(struct ptlrpc_request *);
-void mds_readdir_pack(struct ptlrpc_request *req, __u64 offset, __u32 size,
-                      obd_id ino, int type);
-void mds_getattr_pack(struct ptlrpc_request *req, int valid, int offset,
-                      int flags, struct mdc_op_data *data);
-void mds_setattr_pack(struct ptlrpc_request *req,
-                      struct mdc_op_data *data,
-                      struct iattr *iattr, void *ea, int ealen);
-void mds_create_pack(struct ptlrpc_request *req, int offset,
-                     struct mdc_op_data *op_data,
-                     __u32 mode, __u64 rdev, __u32 uid, __u32 gid, __u64 time,
-                     const void *data, int datalen);
-void mds_open_pack(struct ptlrpc_request *req, int offset,
-                   struct mdc_op_data *op_data,
-                   __u32 mode, __u64 rdev, __u32 uid, __u32 gid, __u64 time,
-                   __u32 flags, const void *data, int datalen);
-void mds_unlink_pack(struct ptlrpc_request *req, int offset,
-                     struct mdc_op_data *data);
-void mds_link_pack(struct ptlrpc_request *req, int offset,
-                   struct mdc_op_data *data);
-void mds_rename_pack(struct ptlrpc_request *req, int offset,
-                     struct mdc_op_data *data,
-                     const char *old, int oldlen, const char *new, int newlen);
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (c) 2003 Cluster File Systems, Inc.
+ *
+ *   This file is part of Lustre, http://www.lustre.org.
+ *
+ *   Lustre is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   Lustre is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Lustre; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#ifndef MDC_INTERNAL_H
+#define MDC_INTERNAL_H
+
+int mdc_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
+               struct lov_stripe_md *lsm);
+
+int mdc_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
+                 struct lov_mds_md *lmm, int lmm_size);
+
+void mdc_getattr_pack(struct lustre_msg *msg, int offset,
+                      __u64 valid, int flags,
+                      struct mdc_op_data *op_data);
+
+void mdc_open_pack(struct lustre_msg *msg, int offset,
+                   struct mdc_op_data *op_data, __u32 mode,
+                   __u64 rdev, __u32 flags, const void *lmm,
+                   int lmmlen, void *key, int keylen);
+
+void mdc_close_pack(struct ptlrpc_request *req, int offset,
+                    struct mdc_op_data *op_data,
+                    struct obd_client_handle *och);
+
+void mdc_readdir_pack(struct ptlrpc_request *req, int req_offset,
+                      __u64 offset, __u32 size, struct lustre_id *mdc_id);
+
+struct mdc_open_data {
+        struct obd_client_handle *mod_och;
+        struct ptlrpc_request    *mod_open_req;
+        struct ptlrpc_request    *mod_close_req;
+};
+
+struct mdc_rpc_lock {
+        struct semaphore rpcl_sem;
+        struct lookup_intent *rpcl_it;
+};
+
+static inline void mdc_init_rpc_lock(struct mdc_rpc_lock *lck)
+{
+        sema_init(&lck->rpcl_sem, 1);
+        lck->rpcl_it = NULL;
+}
+
+static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck, 
+                                    struct lookup_intent *it)
+{
+        ENTRY;
+        down(&lck->rpcl_sem);
+        if (it) { 
+                lck->rpcl_it = it;
+        }
+}
+
+static inline void mdc_put_rpc_lock(struct mdc_rpc_lock *lck, 
+                                    struct lookup_intent *it)
+{
+        EXIT;
+        if (it == NULL) {
+                LASSERT(it == lck->rpcl_it);
+                up(&lck->rpcl_sem);
+                return;
+        }
+        if (it) {
+                LASSERT(it == lck->rpcl_it);
+                lck->rpcl_it = NULL;
+                up(&lck->rpcl_sem);
+        }
+}
+
+#endif /* MDC_INTERNAL_H */