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LU-2800 autoconf: remove obsolete autoconf options
[fs/lustre-release.git] / libcfs / include / libcfs / linux / kp30.h
index 2f9ef67..4e2efba 100644 (file)
@@ -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.
@@ -16,8 +14,8 @@
  * in the LICENSE file that accompanied this code).
  *
  * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  *
  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -38,9 +38,6 @@
 #define __LIBCFS_LINUX_KP30_H__
 
 
-#ifndef AUTOCONF_INCLUDED
-# include <linux/config.h>
-#endif
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/string.h>
@@ -48,7 +45,6 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/unistd.h>
-#include <asm/system.h>
 #include <linux/kmod.h>
 #include <linux/notifier.h>
 #include <linux/fs.h>
@@ -60,7 +56,6 @@
 #include <linux/highmem.h>
 #include <linux/module.h>
 #include <linux/version.h>
-#include <linux/smp_lock.h>
 #include <asm/atomic.h>
 #include <asm/uaccess.h>
 #include <linux/rwsem.h>
 #ifdef HAVE_MM_INLINE
 # include <linux/mm_inline.h>
 #endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-# include <linux/kallsyms.h>
-# include <linux/moduleparam.h>
-#endif
+#include <linux/kallsyms.h>
+#include <linux/moduleparam.h>
+#include <linux/scatterlist.h>
 
 #include <libcfs/linux/portals_compat25.h>
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#define schedule_work schedule_task
-#define prepare_work(wq,cb,cbdata)                                            \
-do {                                                                          \
-        INIT_TQUEUE((wq), 0, 0);                                              \
-        PREPARE_TQUEUE((wq), (cb), (cbdata));                                 \
-} while (0)
-
-#define PageUptodate Page_Uptodate
-#define our_recalc_sigpending(current) recalc_sigpending(current)
-#define num_online_cpus() smp_num_cpus
-static inline void our_cond_resched(void)
-{
-        if (current->need_resched)
-               schedule ();
-}
-#define work_struct_t                   struct tq_struct
-#define cfs_get_work_data(type,field,data)   (data)
-#else
-
-#ifdef HAVE_3ARGS_INIT_WORK
-
-#define prepare_work(wq,cb,cbdata)                                            \
-do {                                                                          \
-        INIT_WORK((wq), (void *)(cb), (void *)(cbdata));                      \
-} while (0)
-
-#define cfs_get_work_data(type,field,data)   (data)
-
-#else
-
-#define prepare_work(wq,cb,cbdata)                                            \
-do {                                                                          \
-        INIT_WORK((wq), (void *)(cb));                                        \
-} while (0)
-
 #define cfs_get_work_data(type,field,data) container_of(data,type,field)
 
-#endif
-
+#define cfs_num_online_cpus() num_online_cpus()
 #define wait_on_page wait_on_page_locked
 #define our_recalc_sigpending(current) recalc_sigpending()
 #define strtok(a,b) strpbrk(a, b)
-static inline void our_cond_resched(void)
-{
-        cond_resched();
-}
 #define work_struct_t      struct work_struct
 
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) */
-
 #ifdef CONFIG_SMP
 #define LASSERT_SPIN_LOCKED(lock) LASSERT(spin_is_locked(lock))
+#define LINVRNT_SPIN_LOCKED(lock) LINVRNT(spin_is_locked(lock))
 #else
-#define LASSERT_SPIN_LOCKED(lock) do {} while(0)
+#define LASSERT_SPIN_LOCKED(lock) do {(void)sizeof(lock);} while(0)
+#define LINVRNT_SPIN_LOCKED(lock) do {(void)sizeof(lock);} while(0)
 #endif
+
 #define LASSERT_SEM_LOCKED(sem) LASSERT(down_trylock(sem) != 0)
+#define LASSERT_MUTEX_LOCKED(x) LASSERT(mutex_is_locked(x))
 
 #define LIBCFS_PANIC(msg)            panic(msg)
 
 /* ------------------------------------------------------------------- */
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-
-#define PORTAL_SYMBOL_REGISTER(x) inter_module_register(#x, THIS_MODULE, &x)
-#define PORTAL_SYMBOL_UNREGISTER(x) inter_module_unregister(#x)
-
-#define PORTAL_SYMBOL_GET(x) ((typeof(&x))inter_module_get(#x))
-#define PORTAL_SYMBOL_PUT(x) inter_module_put(#x)
-
-#define PORTAL_MODULE_USE       MOD_INC_USE_COUNT
-#define PORTAL_MODULE_UNUSE     MOD_DEC_USE_COUNT
-#else
-
 #define PORTAL_SYMBOL_REGISTER(x)
 #define PORTAL_SYMBOL_UNREGISTER(x)
 
@@ -162,26 +105,15 @@ static inline void our_cond_resched(void)
 #define PORTAL_MODULE_USE       try_module_get(THIS_MODULE)
 #define PORTAL_MODULE_UNUSE     module_put(THIS_MODULE)
 
-#endif
 
 /******************************************************************************/
 /* Module parameter support */
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-# define CFS_MODULE_PARM(name, t, type, perm, desc) \
-        MODULE_PARM(name, t);\
-        MODULE_PARM_DESC(name, desc)
-
-#else
-# define CFS_MODULE_PARM(name, t, type, perm, desc) \
+#define CFS_MODULE_PARM(name, t, type, perm, desc) \
         module_param(name, type, perm);\
         MODULE_PARM_DESC(name, desc)
-#endif
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9))
-# define CFS_SYSFS_MODULE_PARM  0 /* no sysfs module parameters */
-#else
-# define CFS_SYSFS_MODULE_PARM  1 /* module parameters accessible via sysfs */
-#endif
+#define CFS_SYSFS_MODULE_PARM  1 /* module parameters accessible via sysfs */
+
 /******************************************************************************/
 
 #if (__GNUC__)
@@ -200,13 +132,8 @@ static inline void our_cond_resched(void)
 # define printf(format, b...) CDEBUG(D_OTHER, format , ## b)
 # define time(a) CURRENT_TIME
 
-#ifndef num_possible_cpus
-#define num_possible_cpus() NR_CPUS
-#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-#define i_size_read(a) ((a)->i_size)
-#endif
-
+# define cfs_num_possible_cpus() num_possible_cpus()
+# define cfs_num_present_cpus()  num_present_cpus()
 
 /******************************************************************************/
 /* Light-weight trace
@@ -246,9 +173,9 @@ typedef struct {
 #  if !KLWT_SUPPORT
 
 typedef struct _lwt_page {
-        struct list_head     lwtp_list;
-        struct page         *lwtp_page;
-        lwt_event_t         *lwtp_events;
+        cfs_list_t               lwtp_list;
+        struct page             *lwtp_page;
+        lwt_event_t             *lwtp_events;
 } lwt_page_t;
 
 typedef struct {
@@ -265,7 +192,7 @@ extern lwt_cpu_t lwt_cpus[];
 
 #define LWTSTR(n)       #n
 #define LWTWHERE(f,l)   f ":" LWTSTR(l)
-#define LWT_EVENTS_PER_PAGE (CFS_PAGE_SIZE / sizeof (lwt_event_t))
+#define LWT_EVENTS_PER_PAGE (PAGE_CACHE_SIZE / sizeof(lwt_event_t))
 
 #define LWT_EVENT(p1, p2, p3, p4)                                       \
 do {                                                                    \
@@ -283,8 +210,8 @@ do {                                                                    \
                                                                         \
                 if (cpu->lwtc_current_index >= LWT_EVENTS_PER_PAGE) {   \
                         cpu->lwtc_current_page =                        \
-                                list_entry (p->lwtp_list.next,          \
-                                            lwt_page_t, lwtp_list);     \
+                                cfs_list_entry (p->lwtp_list.next,      \
+                                                lwt_page_t, lwtp_list); \
                         cpu->lwtc_current_index = 0;                    \
                 }                                                       \
                                                                         \
@@ -307,7 +234,7 @@ extern void lwt_fini (void);
 extern int  lwt_lookup_string (int *size, char *knlptr,
                                char *usrptr, int usrsize);
 extern int  lwt_control (int enable, int clear);
-extern int  lwt_snapshot (cycles_t *now, int *ncpu, int *total_size,
+extern int  lwt_snapshot (cfs_cycles_t *now, int *ncpu, int *total_size,
                           void *user_ptr, int user_size);
 # else  /* __KERNEL__ */
 #  define LWT_EVENT(p1,p2,p3,p4)     /* no userland implementation yet */
@@ -342,29 +269,34 @@ extern int  lwt_snapshot (cycles_t *now, int *ncpu, int *total_size,
 
 #define _LWORDSIZE BITS_PER_LONG
 
-#if defined(HAVE_U64_LONG_LONG)
-# define LPU64 "%Lu"
-# define LPD64 "%Ld"
-# define LPX64 "%#Lx"
+#if (defined(__KERNEL__) && defined(HAVE_KERN__U64_LONG_LONG)) || \
+    (!defined(__KERNEL__) && defined(HAVE_USER__U64_LONG_LONG))
+# define LPU64 "%llu"
+# define LPD64 "%lld"
+# define LPX64 "%#llx"
+# define LPX64i "%llx"
+# define LPO64 "%#llo"
 # define LPF64 "L"
 #else
 # define LPU64 "%lu"
 # define LPD64 "%ld"
 # define LPX64 "%#lx"
+# define LPX64i "%lx"
+# define LPO64 "%#lo"
 # define LPF64 "l"
 #endif
 
-#ifdef HAVE_SIZE_T_LONG
-# define LPSZ  "%lu"
-#else
-# define LPSZ  "%u"
-#endif
+/*
+ * long_ptr_t & ulong_ptr_t, same to "long" for gcc
+ */
+# define LPLU "%lu"
+# define LPLD "%ld"
+# define LPLX "%#lx"
 
-#ifdef HAVE_SSIZE_T_LONG
-# define LPSSZ "%ld"
-#else
-# define LPSSZ "%d"
-#endif
+/*
+ * pid_t
+ */
+# define LPPID "%d"
 
 #ifndef LPU64
 # error "No word size defined"
@@ -372,4 +304,27 @@ extern int  lwt_snapshot (cycles_t *now, int *ncpu, int *total_size,
 
 #undef _LWORDSIZE
 
+#define cfs_smp_processor_id()  smp_processor_id()
+
+#ifndef get_cpu
+# ifdef CONFIG_PREEMPT
+#  define cfs_get_cpu()  ({ preempt_disable(); smp_processor_id(); })
+#  define cfs_put_cpu()  preempt_enable()
+# else
+#  define cfs_get_cpu()  smp_processor_id()
+#  define cfs_put_cpu()
+# endif
+#else
+# define cfs_get_cpu()   get_cpu()
+# define cfs_put_cpu()   put_cpu()
+#endif /* get_cpu & put_cpu */
+
+#ifdef HAVE_SYSCTL_CTLNAME
+#define INIT_CTL_NAME(a) .ctl_name = a,
+#define INIT_STRATEGY(a) .strategy = a,
+#else
+#define INIT_CTL_NAME(a)
+#define INIT_STRATEGY(a)
+#endif
+
 #endif