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| author | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-13 21:20:27 +1030 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-13 21:20:27 +1030 |
| commit | aab46da0520af9c99b7802cebe4f14a81ff39415 (patch) | |
| tree | f48ba155e9accb165f03c31b7ed9eed9b057b59e | |
| parent | 320ab2b0b1e08e3805a3e1084a2f0eb1938d5d67 (diff) | |
| download | lwn-aab46da0520af9c99b7802cebe4f14a81ff39415.tar.gz lwn-aab46da0520af9c99b7802cebe4f14a81ff39415.zip | |
cpumask: Add CONFIG_CPUMASK_OFFSTACK
Impact: Add config option to enable code in cpumask.h
Currently it can be set if DEBUG_PER_CPU_MAPS, or set specifically by
an arch.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| -rw-r--r-- | lib/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index 85cf7ea978aa..7823f8342abf 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -157,4 +157,11 @@ config CHECK_SIGNATURE config HAVE_LMB boolean +config CPUMASK_OFFSTACK + bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS + help + Use dynamic allocation for cpumask_var_t, instead of putting + them on the stack. This is a bit more expensive, but avoids + stack overflow. + endmenu |