Hi!
> [ Upstream commit 4eec7faf6775263d9e450ae7ee5bc4101d4a0bc9 ]
>
> NTFS_RW code allocates page size dependent arrays on the stack. This
> results in build failures if the page size is 64k or larger.
>
> fs/ntfs/aops.c: In function 'ntfs_write_mst_block':
> fs/ntfs/aops.c:1311:1: error:
> the frame size of 2240 bytes is larger than 2048 bytes
>
> Since commit f22969a66041 ("powerpc/64s: Default to 64K pages for 64 bit
> book3s") this affects ppc:allmodconfig builds, but other architectures
> supporting page sizes of 64k or larger are also affected.
NAK, this will disable NTFS_RW support in 4.4 entirely.
> +++ b/fs/ntfs/Kconfig
> @@ -51,6 +51,7 @@ config NTFS_DEBUG
> config NTFS_RW
> bool "NTFS write support"
> depends on NTFS_FS
> + depends on PAGE_SIZE_LESS_THAN_64KB
> help
> This enables the partial, but safe, write support in the NTFS driver.
>
AFAICT CONFIG_PAGE_SIZE_LESS_THAN_64KB is not present in 4.4 (and
probably other) -stable kernels, nor it is queued to be added there.
Best regards,
Pavel
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