Using these functions with offstack cpus is unsafe. They use all NR_CPUS
bits, unstead of nr_cpumask_bits.
In particular, lustre (in staging) used cpus_ and that caused a bug.
Reported-by: Oleg Drokin <gr...@linuxhacker.ru>
Signed-off-by: Rusty Russell <ru...@rustcorp.com.au>
---
lib/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/Kconfig b/lib/Kconfig
index 87da53bb1fef..722427805220 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -398,8 +398,8 @@ config CPUMASK_OFFSTACK
stack overflow.
config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
- bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS
- depends on BROKEN
+ bool
+ depends on CPUMASK_OFFSTACK
config CPU_RMAP
bool
--
2.1.0
--
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