* Nick Terrell <nickrterrell@xxxxxxxxx> wrote: > --- a/arch/x86/boot/compressed/misc.c > +++ b/arch/x86/boot/compressed/misc.c > @@ -12,6 +12,11 @@ > * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996 > */ > > +/* decompressors bring in EXPORT_SYMBOL which is meaningless and will > + * cause compiler errors in some cases. > + */ > +#define __DISABLE_EXPORTS > + > #include "misc.h" > #include "error.h" > #include "pgtable.h" > @@ -77,6 +82,10 @@ static int lines, cols; > #ifdef CONFIG_KERNEL_LZ4 > #include "../../../../lib/decompress_unlz4.c" > #endif > + > +#ifdef CONFIG_KERNEL_ZSTD > +#include "../../../../lib/decompress_unzstd.c" > +#endif > /* > * NOTE: When adding a new decompressor, please update the analysis in > * ../header.S. > diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h > index 680c320363db..d6dd43d25d9f 100644 > --- a/arch/x86/include/asm/boot.h > +++ b/arch/x86/include/asm/boot.h > @@ -24,9 +24,11 @@ > # error "Invalid value for CONFIG_PHYSICAL_ALIGN" > #endif > > -#ifdef CONFIG_KERNEL_BZIP2 > +#if defined(CONFIG_KERNEL_BZIP2) > # define BOOT_HEAP_SIZE 0x400000 > -#else /* !CONFIG_KERNEL_BZIP2 */ > +#elif defined(CONFIG_KERNEL_ZSTD) > +# define BOOT_HEAP_SIZE 0x30000 > +#else > # define BOOT_HEAP_SIZE 0x10000 > #endif So the other patches explain why the decompression buffer extra space was increased from 64k to 128k, but is there a similar calculation/estimate for bumping BOOT_HEAD_SIZE from 64k to 192k? Admittedly the BZ2 exception doesn't set a good example, but maybe we can do this for ZSTD? Thanks, Ingo
