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[2/2] powerpc: select CPUMASK_OFFSTACK if NR_CPUS >= 8192

Message ID 20211105035042.1398309-2-npiggin@gmail.com (mailing list archive)
State Accepted
Headers show
Series [1/2] powerpc: remove cpu_online_cores_map function | expand

Commit Message

Nicholas Piggin Nov. 5, 2021, 3:50 a.m. UTC 
Some core kernel code starts to go beyond the 2048 byte stack size
warning at NR_CPUS=8192, so select CPUMASK_OFFSTACK in that case.
x86 does similarly for very large NR_CPUS.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 arch/powerpc/Kconfig | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index ba5b66189358..b8f6185d3998 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -163,6 +163,7 @@  config PPC
 	select BINFMT_ELF
 	select BUILDTIME_TABLE_SORT
 	select CLONE_BACKWARDS
+	select CPUMASK_OFFSTACK			if NR_CPUS >= 8192
 	select DCACHE_WORD_ACCESS		if PPC64 && CPU_LITTLE_ENDIAN
 	select DMA_OPS_BYPASS			if PPC64
 	select DMA_OPS				if PPC64