[PATCH] fs: btrfs: Disable BTRFS on platforms having 256K pages
From: Christophe Leroy <hidden>
Date: 2021-06-10 05:23:12
Also in:
linux-btrfs, lkml
Subsystem:
btrfs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Chris Mason, David Sterba, Alexander Viro, Christian Brauner, Linus Torvalds
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 <redacted> Signed-off-by: Christophe Leroy <redacted> --- fs/btrfs/Kconfig | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig
index 68b95ad82126..520a0f6a7d9e 100644
--- a/fs/btrfs/Kconfig
+++ b/fs/btrfs/Kconfig@@ -18,6 +18,8 @@ config BTRFS_FS select RAID6_PQ select XOR_BLOCKS select SRCU + depends on !PPC_256K_PAGES # powerpc + depends on !PAGE_SIZE_256KB # hexagon help Btrfs is a general purpose copy-on-write filesystem with extents,
--
2.25.0