From ccf3fe02e35f4abca2589f99022cc25084bbd8ae Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Fri, 27 Feb 2009 13:27:38 -0800 Subject: x86-32: use brk segment for allocating initial kernel pagetable Impact: use new interface instead of previous ad hoc implementation Rather than having special purpose init_pg_table_start/end variables to delimit the kernel pagetable built by head_32.S, just use the brk mechanism to extend the bss for the new pagetable. This patch removes init_pg_table_start/end and pg0, defines __brk_base (which is page-aligned and immediately follows _end), initializes the brk region to start there, and uses it for the 32-bit pagetable. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/setup.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'arch/x86/include/asm/setup.h') diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h index 45454f3fa12..366d3663994 100644 --- a/arch/x86/include/asm/setup.h +++ b/arch/x86/include/asm/setup.h @@ -109,9 +109,6 @@ void *extend_brk(size_t size, size_t align); void __init i386_start_kernel(void); extern void probe_roms(void); -extern unsigned long init_pg_tables_start; -extern unsigned long init_pg_tables_end; - #else void __init x86_64_start_kernel(char *real_mode); void __init x86_64_start_reservations(char *real_mode_data); -- cgit v1.2.3-18-g5258