datapath/linux/compat/include/linux/rculist.h

   1 #ifndef __LINUX_RCULIST_WRAPPER_H
   2 #define __LINUX_RCULIST_WRAPPER_H
   3
   4 #include <linux/version.h>
   5 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
   6 #include_next <linux/rculist.h>
   7 #else
   8 /* Prior to 2.6.26, the contents of rculist.h were part of list.h. */
   9 #include <linux/list.h>
  10 #endif
  11
  12 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
  13 #define hlist_del_init_rcu rpl_hlist_del_init_rcu
  14 static inline void hlist_del_init_rcu(struct hlist_node *n)
  15 {
  16         if (!hlist_unhashed(n)) {
  17                 __hlist_del(n);
  18                 n->pprev = NULL;
  19         }
  20 }
  21 #endif
  22
  23 #undef hlist_for_each_entry_rcu
  24 #define hlist_for_each_entry_rcu(pos, head, member)                     \
  25         for (pos = hlist_entry_safe (rcu_dereference_raw(hlist_first_rcu(head)),\
  26                         typeof(*(pos)), member);                        \
  27                 pos;                                                    \
  28                 pos = hlist_entry_safe(rcu_dereference_raw(hlist_next_rcu(\
  29                         &(pos)->member)), typeof(*(pos)), member))
  30
  31 #endif