Re: [PATCH v2 32/33] tools/testing/vma: default VMA, mm flag bits to 64-bit

Gregory Price <[email protected]> Fri, 10 Jul 2026 17:08:30 -0400
Newsgroups org.kernel.vger.linux-sgx,dev.linux.lists.iommu,org.freedesktop.lists.dri-devel,org.kernel.vger.kvm,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-kernel,org.kernel.vger.linux-tegra
Message-ID <alFewd7j_uiNP1Vw@gourry-fedora-PF4VCD3F>
On Fri, Jul 10, 2026 at 09:17:13PM +0100, Lorenzo Stoakes wrote:
> With all of the sanitisers turned on, setting the VMA and mm flag bits
> depth to 128 by default results in overly long build times.
> 
> Reduce this to 64 - we can always manipulate these later for testing of
> larger bitmaps as needed.
> 
> Signed-off-by: Lorenzo Stoakes <[email protected]>

I've never had a "too main recipients" error with my email client
before.  Bravo.

Reviewed-by: Gregory Price <[email protected]>

> ---
>  tools/testing/vma/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/vma/Makefile b/tools/testing/vma/Makefile
> index e72b45dedda5..ef6cc558afe1 100644
> --- a/tools/testing/vma/Makefile
> +++ b/tools/testing/vma/Makefile
> @@ -10,7 +10,7 @@ OFILES = $(SHARED_OFILES) main.o shared.o maple-shim.o
>  TARGETS = vma
>  
>  # These can be varied to test different sizes.
> -CFLAGS += -DNUM_VMA_FLAG_BITS=128 -DNUM_MM_FLAG_BITS=128
> +CFLAGS += -DNUM_VMA_FLAG_BITS=64 -DNUM_MM_FLAG_BITS=64
>  
>  main.o: main.c shared.c shared.h vma_internal.h tests/merge.c tests/mmap.c tests/vma.c ../../../mm/vma.c ../../../mm/vma_init.c ../../../mm/vma_exec.c ../../../mm/vma.h include/custom.h include/dup.h include/stubs.h
>  
> 
> -- 
> 2.55.0
>