From: Andi Kleen <ak@muc.de>
To: netdev@oss.sgi.com
Subject: [PATCH] Remove X86_TSC dependency in net profile code
Date: Wed, 3 Sep 2003 01:00:57 +0200 [thread overview]
Message-ID: <20030902230057.GA5424@averell> (raw)
This removes one of the remaining users of CONFIG_X86_TSC
Replace it with a runtime test instead. In some configurations it
will be still properly optimized because cpu_has_tsc will expand
to a constant then.
This also makes it handle x86-64.
I did not actually compile test this because net profile is commented
out since a long time and doesn't compile. An alternative if noone comes
up to fix it would be just to remove it completely.
-Andi
--- linux-2.6.0test4/include/net/profile.h-o 2003-05-27 03:00:21.000000000 +0200
+++ linux-2.6.0test4/include/net/profile.h 2003-08-29 19:48:11.000000000 +0200
@@ -29,11 +29,14 @@
extern struct timeval net_profile_adjust;
extern void net_profile_irq_adjust(struct timeval *entered, struct timeval* leaved);
-#ifdef CONFIG_X86_TSC
+#ifdef CONFIG_X86
static inline void net_profile_stamp(struct timeval *pstamp)
{
- rdtsc(pstamp->tv_usec, pstamp->tv_sec);
+ if (cpu_has_tsc)
+ rdtsc(pstamp->tv_usec, pstamp->tv_sec);
+ else
+ do_gettimeofday(pstamp);
}
static inline void net_profile_accumulate(struct timeval *entered,
next reply other threads:[~2003-09-02 23:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-02 23:00 Andi Kleen [this message]
2003-09-02 22:57 ` [PATCH] Remove X86_TSC dependency in net profile code David S. Miller
2003-09-04 7:44 ` David S. Miller
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