LU-3544 fid: do open-by-fid by default

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

diff --git a/lustre/include/lustre_lite.h b/lustre/include/lustre_lite.h
index 2a57837..eddeded 100644 (file)
--- a/lustre/include/lustre_lite.h
+++ b/lustre/include/lustre_lite.h
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -26,8 +24,10 @@
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -37,6 +37,11 @@
 #ifndef _LL_H
 #define _LL_H
 
+/** \defgroup lite lite
+ *
+ * @{
+ */
+
 #if defined(__linux__)
 #include <linux/lustre_lite.h>
 #elif defined(__APPLE__)
@@ -48,18 +53,9 @@
 #endif
 
 #include <obd_class.h>
-#include <obd_ost.h>
 #include <lustre_net.h>
-#include <lustre_mds.h>
 #include <lustre_ha.h>
 
-#ifdef __KERNEL__
-
-/* careful, this is easy to screw up */
-#define PAGE_CACHE_MAXBYTES ((__u64)(~0UL) << CFS_PAGE_SHIFT)
-
-#endif
-
 /* 4UL * 1024 * 1024 */
 #define LL_MAX_BLKSIZE_BITS     (22)
 #define LL_MAX_BLKSIZE          (1UL<<LL_MAX_BLKSIZE_BITS)
@@ -121,67 +117,30 @@ static inline void lustre_build_lock_params(int cmd, unsigned long open_flags,
 struct lustre_client_ocd {
         /*
          * This is conjunction of connect_flags across all imports (LOVs) this
-         * mount is connected to. This field is updated by ll_ocd_update()
+         * mount is connected to. This field is updated by cl_ocd_update()
          * under ->lco_lock.
          */
-        __u64      lco_flags;
-        spinlock_t lco_lock;
+        __u64              lco_flags;
+       struct mutex       lco_lock;
+        struct obd_export *lco_md_exp;
+        struct obd_export *lco_dt_exp;
 };
 
 /*
- * This function is used as an upcall-callback hooked by liblustre and llite
- * clients into obd_notify() listeners chain to handle notifications about
- * change of import connect_flags. See llu_fsswop_mount() and
- * lustre_common_fill_super().
- *
- * Again, it is dumped into this header for the lack of a better place.
- */
-static inline int ll_ocd_update(struct obd_device *host,
-                                struct obd_device *watched,
-                                enum obd_notify_event ev, void *owner)
-{
-        struct lustre_client_ocd *lco;
-        struct client_obd        *cli;
-        __u64 flags;
-        int   result;
-
-        ENTRY;
-        if (!strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME)) {
-                cli = &watched->u.cli;
-                lco = owner;
-                flags = cli->cl_import->imp_connect_data.ocd_connect_flags;
-                CDEBUG(D_SUPER, "Changing connect_flags: "LPX64" -> "LPX64"\n",
-                       lco->lco_flags, flags);
-                spin_lock(&lco->lco_lock);
-                lco->lco_flags &= flags;
-                spin_unlock(&lco->lco_lock);
-                result = 0;
-        } else {
-                CERROR("unexpected notification from %s %s!\n",
-                       watched->obd_type->typ_name,
-                       watched->obd_name);
-                result = -EINVAL;
-        }
-        RETURN(result);
-}
-
-/*      
  * Chain of hash overflow pages.
- */            
+ */
 struct ll_dir_chain {
         /* XXX something. Later */
 };
-        
+
 static inline void ll_dir_chain_init(struct ll_dir_chain *chain)
-{       
+{
 }
 
 static inline void ll_dir_chain_fini(struct ll_dir_chain *chain)
 {
 }
 
-static inline __u32 hash_x_index(__u32 value)
-{
-        return ((__u32)~0) - value;
-}
+/** @} lite */
+
 #endif