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| author | Paul Mackerras <paulus@samba.org> | 2005-10-22 16:51:34 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-10-22 16:51:34 +1000 |
| commit | 985990137e81ca9fd6561cd0f7d1a9695ec57d5a (patch) | |
| tree | 7a67493285623a7356ba7065cada6728993d1a3b /net/sched/Kconfig | |
| parent | 834289447542b7ec55c0847486616d4d53ddf891 (diff) | |
| parent | 63172cb3d5ef762dcb60a292bc7f016b85cf6e1f (diff) | |
| download | linux-3.10-985990137e81ca9fd6561cd0f7d1a9695ec57d5a.tar.gz linux-3.10-985990137e81ca9fd6561cd0f7d1a9695ec57d5a.tar.bz2 linux-3.10-985990137e81ca9fd6561cd0f7d1a9695ec57d5a.zip | |
Merge changes from linux-2.6 by hand
Diffstat (limited to 'net/sched/Kconfig')
| -rw-r--r-- | net/sched/Kconfig | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/sched/Kconfig b/net/sched/Kconfig index 45d3bc0812c..81510da3179 100644 --- a/net/sched/Kconfig +++ b/net/sched/Kconfig @@ -72,9 +72,11 @@ config NET_SCH_CLK_GETTIMEOFDAY Choose this if you need a high resolution clock source but can't use the CPU's cycle counter. +# don't allow on SMP x86 because they can have unsynchronized TSCs. +# gettimeofday is a good alternative config NET_SCH_CLK_CPU bool "CPU cycle counter" - depends on X86_TSC || X86_64 || ALPHA || SPARC64 || PPC64 || IA64 + depends on ((X86_TSC || X86_64) && !SMP) || ALPHA || SPARC64 || PPC64 || IA64 help Say Y here if you want to use the CPU's cycle counter as clock source. This is a cheap and high resolution clock source, but on some |