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| author | Tony Luck <tony.luck@intel.com> | 2005-10-20 10:41:44 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-10-20 10:41:44 -0700 |
| commit | 9cec58dc138d6fcad9f447a19c8ff69f6540e667 (patch) | |
| tree | 4fe1cca94fdba8b705c87615bee06d3346f687ce /net/sched/Kconfig | |
| parent | 17e5ad6c0ce5a970e2830d0de8bdd60a2f077d38 (diff) | |
| parent | ac9b9c667c2e1194e22ebe0a441ae1c37aaa9b90 (diff) | |
| download | op-kernel-dev-9cec58dc138d6fcad9f447a19c8ff69f6540e667.zip op-kernel-dev-9cec58dc138d6fcad9f447a19c8ff69f6540e667.tar.gz | |
Update from upstream with manual merge of Yasunori Goto's
changes to swiotlb.c made in commit 281dd25cdc0d6903929b79183816d151ea626341
since this file has been moved from arch/ia64/lib/swiotlb.c to
lib/swiotlb.c
Signed-off-by: Tony Luck <tony.luck@intel.com>
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 45d3bc0..81510da 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 |
