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/kernel/vmlinux_32.lds.S | 4 ---- 1 file changed, 4 deletions(-) (limited to 'arch/x86/kernel/vmlinux_32.lds.S') diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S index 27e44aa21585..1063fbe93c73 100644 --- a/arch/x86/kernel/vmlinux_32.lds.S +++ b/arch/x86/kernel/vmlinux_32.lds.S @@ -196,10 +196,6 @@ SECTIONS __brk_limit = . ; _end = . ; - - /* This is where the kernel creates the early boot page tables */ - . = ALIGN(PAGE_SIZE); - pg0 = . ; } /* Sections to be discarded */ -- cgit v1.2.3