[haiku-commits] r35377 - haiku/trunk/headers/private/kernel/arch/x86
- From: ingo_weinhold@xxxxxx
- To: haiku-commits@xxxxxxxxxxxxx
- Date: Mon, 1 Feb 2010 09:55:44 +0100 (CET)
Author: bonefish
Date: 2010-02-01 09:55:44 +0100 (Mon, 01 Feb 2010)
New Revision: 35377
Changeset: http://dev.haiku-os.org/changeset/35377/haiku
Modified:
haiku/trunk/headers/private/kernel/arch/x86/arch_int.h
Log:
Patch by "Grey": Small optimization of arch_int_disable_interrupts_inline()
and arch_int_restore_interrupts_inline().
Modified: haiku/trunk/headers/private/kernel/arch/x86/arch_int.h
===================================================================
--- haiku/trunk/headers/private/kernel/arch/x86/arch_int.h 2010-02-01
05:36:59 UTC (rev 35376)
+++ haiku/trunk/headers/private/kernel/arch/x86/arch_int.h 2010-02-01
08:55:44 UTC (rev 35377)
@@ -25,22 +25,15 @@
asm volatile("pushfl;\n"
"popl %0;\n"
"cli" : "=g" (flags));
- return (flags & 0x200) != 0;
+ return flags ;
}
static inline void
arch_int_restore_interrupts_inline(int oldState)
{
- int flags = oldState ? 0x200 : 0;
-
- asm volatile("pushfl;\n"
- "popl %0;\n"
- "andl $0xfffffdff,%0;\n"
- "orl %1,%0;\n"
- "pushl %0;\n"
- "popfl\n"
- : "=&r"(flags) : "r"(flags));
+ if (oldState & 0x200)
+ asm("sti");
}
Other related posts:
- » [haiku-commits] r35377 - haiku/trunk/headers/private/kernel/arch/x86 - ingo_weinhold
