[kgtp] r928 committed - Add some unlikely to speed up

From: kgtp@xxxxxxxxxxxxxx
To: kgtp@xxxxxxxxxxxxx
Date: Wed, 22 Feb 2012 14:07:05 +0000
Revision: 928
Author:   teawater
Date:     Wed Feb 22 06:06:20 2012
Log:      Add some unlikely to speed up

http://code.google.com/p/kgtp/source/detail?r=928

Modified:
 /trunk/gtp.c
 /trunk/gtp_for_review.patch

=======================================
--- /trunk/gtp.c        Wed Feb 22 05:59:16 2012
+++ /trunk/gtp.c        Wed Feb 22 06:06:20 2012
@@ -2822,7 +2822,7 @@
        char            *pbuf = __get_cpu_var(gtp_printf);
        ULONGEST        *stack = __get_cpu_var(action_x_stack);

-       if (ae->u.exp.need_var_lock)
+       if (unlikely(ae->u.exp.need_var_lock))
                spin_lock(&gtp_var_lock);

        if (ae->type == 'X') {
@@ -3469,7 +3469,7 @@
                                }
                                break;
                        }
-                       if (sp > STACK_MAX - 5) {
+                       if (unlikely(sp > STACK_MAX - 5)) {
                                printk(KERN_WARNING "gtp_action_x: stack "
                                                    "overflow.\n");
                                gts->tpe->reason
@@ -3486,14 +3486,14 @@
                            "action X get error in pc %u.\n",
                (int)gts->tpe->num, (void *)(CORE_ADDR)gts->tpe->addr, pc);
 out:
-       if (psize != GTP_PRINTF_MAX) {
+       if (unlikely(psize != GTP_PRINTF_MAX)) {
                unsigned long   flags;

                local_irq_save(flags);
                printk("%s", pbuf - (GTP_PRINTF_MAX - psize));
                local_irq_restore(flags);
        }
-       if (ae->u.exp.need_var_lock)
+       if (unlikely(ae->u.exp.need_var_lock))
                spin_unlock(&gtp_var_lock);
        return ret;
 }
=======================================
--- /trunk/gtp_for_review.patch Wed Feb 22 05:59:16 2012
+++ /trunk/gtp_for_review.patch Wed Feb 22 06:06:20 2012
@@ -4298,7 +4298,7 @@
 +      char            *pbuf = __get_cpu_var(gtp_printf);
 +      ULONGEST        *stack = __get_cpu_var(action_x_stack);
 +
-+      if (ae->u.exp.need_var_lock)
++      if (unlikely(ae->u.exp.need_var_lock))
 +              spin_lock(&gtp_var_lock);
 +
 +      if (ae->type == 'X') {
@@ -4945,7 +4945,7 @@
 +                              }
 +                              break;
 +                      }
-+                      if (sp > STACK_MAX - 5) {
++                      if (unlikely(sp > STACK_MAX - 5)) {
 +                              printk(KERN_WARNING "gtp_action_x: stack "
 +                                                  "overflow.\n");
 +                              gts->tpe->reason
@@ -4962,14 +4962,14 @@
 +                          "action X get error in pc %u.\n",
 +              (int)gts->tpe->num, (void *)(CORE_ADDR)gts->tpe->addr, pc);
 +out:
-+      if (psize != GTP_PRINTF_MAX) {
++      if (unlikely(psize != GTP_PRINTF_MAX)) {
 +              unsigned long   flags;
 +
 +              local_irq_save(flags);
 +              printk("%s", pbuf - (GTP_PRINTF_MAX - psize));
 +              local_irq_restore(flags);
 +      }
-+      if (ae->u.exp.need_var_lock)
++      if (unlikely(ae->u.exp.need_var_lock))
 +              spin_unlock(&gtp_var_lock);
 +      return ret;
 +}
[kgtp] r928 committed - Add some unlikely to speed up

Other related posts:
