x86_64: there's no need to preallocate level1_fixmap_pgt

Early fixmap will allocate its own L1 pagetable page for fixmap
mappings, so there's no need to preallocate one.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index b07ac7b..4b6bda2 100644 (file)
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -362,12 +362,6 @@ NEXT_PAGE(level3_kernel_pgt)
        .quad   level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
 
 NEXT_PAGE(level2_fixmap_pgt)
-       .fill   506,8,0
-       .quad   level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
-       /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
-       .fill   5,8,0
-
-NEXT_PAGE(level1_fixmap_pgt)
        .fill   512,8,0
 
 NEXT_PAGE(level2_ident_pgt)