Re: [PATCH] fs: btrfs: Disable BTRFS on platforms having 256K pages

From: David Sterba
Date: Fri Jun 11 2021 - 08:36:52 EST


On Thu, Jun 10, 2021 at 05:23:02AM +0000, Christophe Leroy wrote:
> With a config having PAGE_SIZE set to 256K, BTRFS build fails
> with the following message
>
> include/linux/compiler_types.h:326:38: error: call to '__compiletime_assert_791' declared with attribute error: BUILD_BUG_ON failed: (BTRFS_MAX_COMPRESSED % PAGE_SIZE) != 0
>
> BTRFS_MAX_COMPRESSED being 128K, BTRFS cannot support platforms with
> 256K pages at the time being.
>
> There are two platforms that can select 256K pages:
> - hexagon
> - powerpc
>
> Disable BTRFS when 256K page size is selected.
>
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>

With updated changelog added to misc-next, thanks.