x86: reduce arch/x86/mm/ioremap.o size
authorIan Campbell <ijc@hellion.org.uk>
Sun, 17 Feb 2008 19:09:42 +0000 (19:09 +0000)
committerIngo Molnar <mingo@elte.hu>
Thu, 17 Apr 2008 15:40:47 +0000 (17:40 +0200)
> Don't we have a special section for page-aligned data so it doesn't
> waste most of two pages?

We have .bss.page_aligned and it seems appropriate to use it.

    text    data     bss     dec     hex filename
    -   3388    8236       4   11628    2d6c ../build-32/arch/x86/mm/ioremap.o
    +   3388      48    4100    7536    1d70 ../build-32/arch/x86/mm/ioremap.o

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/mm/ioremap.c

index 794895c6dcc99428b2105a9f4062b109b90f5215..868bbde74698d2de574ab9558ab62542a08f30cb 100644 (file)
@@ -272,8 +272,8 @@ static int __init early_ioremap_debug_setup(char *str)
 early_param("early_ioremap_debug", early_ioremap_debug_setup);
 
 static __initdata int after_paging_init;
 early_param("early_ioremap_debug", early_ioremap_debug_setup);
 
 static __initdata int after_paging_init;
-static __initdata pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)]
-                               __attribute__((aligned(PAGE_SIZE)));
+static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)]
+               __section(.bss.page_aligned);
 
 static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
 {
 
 static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
 {