x86, vmlinux.lds: unify percpu

32 bit:
- move __init_end outside the .bss output section
  It really did not belong in there

[ Impact: 64-bit: cleanup, 32-bit: refactor linker script ]

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Tim Abbott <tabbott@MIT.EDU>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <1240991249-27117-12-git-send-email-sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

3 files changed, 30 insertions, 32 deletions

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 1ab62a5fa1a5..1ea2b8571e1a 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -330,6 +330,36 @@ SECTIONS
         }
 #endif
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_SMP)
+        /*
+         * percpu offsets are zero-based on SMP.  PERCPU_VADDR() changes the
+         * output PHDR, so the next output section - __data_nosave - should
+         * start another section data.init2.  Also, pda should be at the head of
+         * percpu area.  Preallocate it and define the percpu offset symbol
+         * so that it can be accessed as a percpu variable.
+         */
+        . = ALIGN(PAGE_SIZE);
+        PERCPU_VADDR(0, :percpu)
+#else
+        PERCPU(PAGE_SIZE)
+#endif
+
+        . = ALIGN(PAGE_SIZE);
+        /* freed after init ends here */
+        __init_end = .;
+
+#ifdef CONFIG_X86_64
+        .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
+                . = ALIGN(PAGE_SIZE);
+                __nosave_begin = .;
+                *(.data.nosave)
+                . = ALIGN(PAGE_SIZE);
+                __nosave_end = .;
+        } :data.init2
+        /* use another section data.init2, see PERCPU_VADDR() above */
+#endif
+
+
 #ifdef CONFIG_X86_32
 # include "vmlinux_32.lds.S"
 #else
diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S
index 36c8fbd3c762..d23ee2c15c28 100644
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -1,11 +1,5 @@
-        PERCPU(PAGE_SIZE)
-
-        . = ALIGN(PAGE_SIZE);
-        /* freed after init ends here */
-
         /* BSS */
         .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
-                __init_end = .;
                 __bss_start = .;
                 *(.bss.page_aligned)
                 *(.bss)
diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
index 1aa536223330..a53936696a08 100644
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -1,29 +1,3 @@
-#ifdef CONFIG_SMP
-        /*
-         * percpu offsets are zero-based on SMP.  PERCPU_VADDR() changes the
-         * output PHDR, so the next output section - __data_nosave - should
-         * start another section data.init2.  Also, pda should be at the head of
-         * percpu area.  Preallocate it and define the percpu offset symbol
-         * so that it can be accessed as a percpu variable.
-         */
-        . = ALIGN(PAGE_SIZE);
-        PERCPU_VADDR(0, :percpu)
-#else
-        PERCPU(PAGE_SIZE)
-#endif
-
-        . = ALIGN(PAGE_SIZE);
-        __init_end = .;
-
-        .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
-                . = ALIGN(PAGE_SIZE);
-                __nosave_begin = .;
-                *(.data.nosave)
-                . = ALIGN(PAGE_SIZE);
-                __nosave_end = .;
-        } :data.init2
-        /* use another section data.init2, see PERCPU_VADDR() above */
-
         .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
                 . = ALIGN(PAGE_SIZE);
                 __bss_start = .;                /* BSS */