[PATCH CPA] [1/28] Shrink __PAGE_KERNEL/__PAGE_KERNEL_EXEC on non PAE kernels
No need to make it 64bit there. Signed-off-by: Andi Kleen <[EMAIL PROTECTED]> --- arch/x86/mm/init_32.c|4 ++-- include/asm-x86/pgtable_32.h |3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) Index: linux/arch/x86/mm/init_32.c === --- linux.orig/arch/x86/mm/init_32.c +++ linux/arch/x86/mm/init_32.c @@ -326,9 +326,9 @@ static void __init set_highmem_pages_ini #define set_highmem_pages_init(bad_ppro) do { } while (0) #endif /* CONFIG_HIGHMEM */ -unsigned long long __PAGE_KERNEL = _PAGE_KERNEL; +typeof_field(pgprot_t, pgprot) __PAGE_KERNEL = _PAGE_KERNEL; EXPORT_SYMBOL(__PAGE_KERNEL); -unsigned long long __PAGE_KERNEL_EXEC = _PAGE_KERNEL_EXEC; +typeof_field(pgprot_t, pgprot) __PAGE_KERNEL_EXEC = _PAGE_KERNEL_EXEC; #ifdef CONFIG_NUMA extern void __init remap_numa_kva(void); Index: linux/include/asm-x86/pgtable_32.h === --- linux.orig/include/asm-x86/pgtable_32.h +++ linux/include/asm-x86/pgtable_32.h @@ -153,7 +153,8 @@ void paging_init(void); #define _PAGE_KERNEL_EXEC \ (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED) -extern unsigned long long __PAGE_KERNEL, __PAGE_KERNEL_EXEC; +#define typeof_field(t, m) typeof(((t *)0)->m) +extern typeof_field(pgprot_t, pgprot) __PAGE_KERNEL, __PAGE_KERNEL_EXEC; #define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW) #define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW) #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH CPA] [1/28] Shrink __PAGE_KERNEL/__PAGE_KERNEL_EXEC on non PAE kernels
No need to make it 64bit there. Signed-off-by: Andi Kleen [EMAIL PROTECTED] --- arch/x86/mm/init_32.c|4 ++-- include/asm-x86/pgtable_32.h |3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) Index: linux/arch/x86/mm/init_32.c === --- linux.orig/arch/x86/mm/init_32.c +++ linux/arch/x86/mm/init_32.c @@ -326,9 +326,9 @@ static void __init set_highmem_pages_ini #define set_highmem_pages_init(bad_ppro) do { } while (0) #endif /* CONFIG_HIGHMEM */ -unsigned long long __PAGE_KERNEL = _PAGE_KERNEL; +typeof_field(pgprot_t, pgprot) __PAGE_KERNEL = _PAGE_KERNEL; EXPORT_SYMBOL(__PAGE_KERNEL); -unsigned long long __PAGE_KERNEL_EXEC = _PAGE_KERNEL_EXEC; +typeof_field(pgprot_t, pgprot) __PAGE_KERNEL_EXEC = _PAGE_KERNEL_EXEC; #ifdef CONFIG_NUMA extern void __init remap_numa_kva(void); Index: linux/include/asm-x86/pgtable_32.h === --- linux.orig/include/asm-x86/pgtable_32.h +++ linux/include/asm-x86/pgtable_32.h @@ -153,7 +153,8 @@ void paging_init(void); #define _PAGE_KERNEL_EXEC \ (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED) -extern unsigned long long __PAGE_KERNEL, __PAGE_KERNEL_EXEC; +#define typeof_field(t, m) typeof(((t *)0)-m) +extern typeof_field(pgprot_t, pgprot) __PAGE_KERNEL, __PAGE_KERNEL_EXEC; #define __PAGE_KERNEL_RO (__PAGE_KERNEL ~_PAGE_RW) #define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC ~_PAGE_RW) #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT) -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/