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| author | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2009-02-27 13:27:38 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-03-14 17:23:47 -0700 |
| commit | ccf3fe02e35f4abca2589f99022cc25084bbd8ae (patch) | |
| tree | 3bcf329116b8c689b4da1bb1a0d87bb587d3f3c7 /arch/x86/kernel/vmlinux_32.lds.S | |
| parent | 5368a2be34b96fda9c05d79424fa63a73ead04ed (diff) | |
| download | linux-ccf3fe02e35f4abca2589f99022cc25084bbd8ae.tar.gz linux-ccf3fe02e35f4abca2589f99022cc25084bbd8ae.tar.bz2 linux-ccf3fe02e35f4abca2589f99022cc25084bbd8ae.zip | |
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 <jeremy.fitzhardinge@citrix.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/kernel/vmlinux_32.lds.S')
| -rw-r--r-- | arch/x86/kernel/vmlinux_32.lds.S | 4 |
1 files changed, 0 insertions, 4 deletions
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 */ |