lnet/include/libcfs/linux/portals_compat25.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  */
   4 #ifndef __LIBCFS_LINUX_PORTALS_COMPAT_H__
   5 #define __LIBCFS_LINUX_PORTALS_COMPAT_H__
   6
   7 // XXX BUG 1511 -- remove this stanza and all callers when bug 1511 is resolved
   8 #if defined(SPINLOCK_DEBUG) && SPINLOCK_DEBUG
   9 # if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) || defined(CONFIG_RH_2_4_20)
  10 #  define SIGNAL_MASK_ASSERT() \
  11    LASSERT(current->sighand->siglock.magic == SPINLOCK_MAGIC)
  12 # else
  13 #  define SIGNAL_MASK_ASSERT() \
  14    LASSERT(current->sigmask_lock.magic == SPINLOCK_MAGIC)
  15 # endif
  16 #else
  17 # define SIGNAL_MASK_ASSERT()
  18 #endif
  19 // XXX BUG 1511 -- remove this stanza and all callers when bug 1511 is resolved
  20
  21 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
  22
  23 # define SIGNAL_MASK_LOCK(task, flags)                                  \
  24   spin_lock_irqsave(&task->sighand->siglock, flags)
  25 # define SIGNAL_MASK_UNLOCK(task, flags)                                \
  26   spin_unlock_irqrestore(&task->sighand->siglock, flags)
  27 # define USERMODEHELPER(path, argv, envp)                               \
  28   call_usermodehelper(path, argv, envp, 1)
  29 # define RECALC_SIGPENDING         recalc_sigpending()
  30 # define CLEAR_SIGPENDING          clear_tsk_thread_flag(current,       \
  31                                                          TIF_SIGPENDING)
  32 # define CURRENT_SECONDS           get_seconds()
  33 # define smp_num_cpus              num_online_cpus()
  34
  35
  36 #elif defined(CONFIG_RH_2_4_20) /* RH 2.4.x */
  37
  38 # define SIGNAL_MASK_LOCK(task, flags)                                  \
  39   spin_lock_irqsave(&task->sighand->siglock, flags)
  40 # define SIGNAL_MASK_UNLOCK(task, flags)                                \
  41   spin_unlock_irqrestore(&task->sighand->siglock, flags)
  42 # define USERMODEHELPER(path, argv, envp)                               \
  43   call_usermodehelper(path, argv, envp)
  44 # define RECALC_SIGPENDING         recalc_sigpending()
  45 # define CLEAR_SIGPENDING          (current->sigpending = 0)
  46 # define CURRENT_SECONDS           CURRENT_TIME
  47 # define wait_event_interruptible_exclusive(wq, condition)              \
  48         wait_event_interruptible(wq, condition)
  49
  50 #else /* 2.4.x */
  51
  52 # define SIGNAL_MASK_LOCK(task, flags)                                  \
  53   spin_lock_irqsave(&task->sigmask_lock, flags)
  54 # define SIGNAL_MASK_UNLOCK(task, flags)                                \
  55   spin_unlock_irqrestore(&task->sigmask_lock, flags)
  56 # define USERMODEHELPER(path, argv, envp)                               \
  57   call_usermodehelper(path, argv, envp)
  58 # define RECALC_SIGPENDING         recalc_sigpending(current)
  59 # define CLEAR_SIGPENDING          (current->sigpending = 0)
  60 # define CURRENT_SECONDS           CURRENT_TIME
  61 # define wait_event_interruptible_exclusive(wq, condition)              \
  62         wait_event_interruptible(wq, condition)
  63
  64 #endif
  65
  66 #if defined(__arch_um__) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,20))
  67 #define UML_PID(tsk) ((tsk)->thread.extern_pid)
  68 #elif defined(__arch_um__) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
  69 #define UML_PID(tsk) ((tsk)->thread.mode.tt.extern_pid)
  70 #else
  71 #define UML_PID(tsk) ((tsk)->pid)
  72 #endif
  73
  74 #if defined(__arch_um__) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
  75 # define THREAD_NAME(comm, len, fmt, a...)                              \
  76         snprintf(comm, len,fmt"|%d", ## a, UML_PID(current))
  77 #else
  78 # define THREAD_NAME(comm, len, fmt, a...)                              \
  79         snprintf(comm, len, fmt, ## a)
  80 #endif
  81
  82 #ifdef HAVE_PAGE_LIST
  83 /* 2.4 alloc_page users can use page->list */
  84 #define PAGE_LIST_ENTRY list
  85 #define PAGE_LIST(page) ((page)->list)
  86 #else
  87 /* 2.6 alloc_page users can use page->lru */
  88 #define PAGE_LIST_ENTRY lru
  89 #define PAGE_LIST(page) ((page)->lru)
  90 #endif
  91
  92 #ifndef HAVE_CPU_ONLINE
  93 #define cpu_online(cpu) ((1<<cpu) & (cpu_online_map))
  94 #endif
  95 #ifndef HAVE_CPUMASK_T
  96 typedef unsigned long cpumask_t;
  97 #define cpu_set(cpu, map) set_bit(cpu, &(map))
  98 #define cpus_clear(map) memset(&(map), 0, sizeof(cpumask_t))
  99 #endif
 100
 101 #ifndef __user
 102 #define __user
 103 #endif
 104
 105 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,8)
 106 #define ll_proc_dointvec(table, write, filp, buffer, lenp, ppos)        \
 107         proc_dointvec(table, write, filp, buffer, lenp)
 108 #define ll_proc_dostring(table, write, filp, buffer, lenp, ppos)        \
 109         proc_dostring(table, write, filp, buffer, lenp)
 110 #define LL_PROC_PROTO(name)                                             \
 111         name(cfs_sysctl_table_t *table, int write, struct file *filp,   \
 112              void __user *buffer, size_t *lenp)
 113 #else
 114 #define ll_proc_dointvec(table, write, filp, buffer, lenp, ppos)        \
 115         proc_dointvec(table, write, filp, buffer, lenp, ppos);
 116 #define ll_proc_dostring(table, write, filp, buffer, lenp, ppos)        \
 117         proc_dostring(table, write, filp, buffer, lenp, ppos);
 118 #define LL_PROC_PROTO(name)                                             \
 119         name(cfs_sysctl_table_t *table, int write, struct file *filp,   \
 120              void __user *buffer, size_t *lenp, loff_t *ppos)
 121 #endif
 122
 123 #endif /* _PORTALS_COMPAT_H */