diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2021-11-05 13:50:42 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-11-29 22:48:32 +1100 |
| commit | 2eafc4748bc08c5b9b6ee0b5b65ad20b30f7d704 (patch) | |
| tree | 66fbd4ca777a14c4ddaec243524698848a2dec19 | |
| parent | b350111bf7b3f4a780d28c44f18f7c9fcbe6d11b (diff) | |
powerpc: select CPUMASK_OFFSTACK if NR_CPUS >= 8192
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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211105035042.1398309-2-npiggin@gmail.com
| -rw-r--r-- | arch/powerpc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index dea74d7717c0..bb5e44e4d7c7 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -165,6 +165,7 @@ 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 |