This patch is CRAP!!!!
This unconditionally breaks tsc usage for single-processor systems.
PLEASE leave the original code as it was - it is generic code for both
SMP and uni-processor environments. The code as it is does not break
your SMP code, so why break our uni-processor code?????
Thanks
Hamish
jason schildt wrote:
DESCRIPTION:
----------------------------------------------
## lnxi-patch-6 ##
src/cpu/x86/tsc/delay_tsc.c
cpu_relax() gets called unconditionally.
DIFFSTAT:
----------------------------------------------
delay_tsc.c | 4 ----
1 files changed, 4 deletions(-)
PATCH:
----------------------------------------------
Index: delay_tsc.c
===================================================================
--- delay_tsc.c (revision 1105)
+++ delay_tsc.c (working copy)
@@ -159,11 +159,7 @@
count = rdtscll();
stop = clocks + count;
while(stop > count) {
-#ifdef CONFIG_SMP
-#if CONFIG_SMP == 1
cpu_relax();
-#endif
-#endif
count = rdtscll();
}
}
--
Jason W. Schildt
LinuxBIOS Software Engineer
Linux Networx
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