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authorYinghai Lu <yhlu.kernel@gmail.com>2008-06-22 02:46:58 -0700
committerIngo Molnar <mingo@elte.hu>2008-07-08 12:50:16 +0200
commit225c37d71bc8b97eb2063e8eda153b383328b20b (patch)
tree912185a6db6753a62842966db180ebecfce32fc6
parentb2ac82a0909aea0d2620ba4c189f37c567c21fe5 (diff)
x86: introduce reserve_initrd
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/x86/kernel/setup_32.c16
-rw-r--r--arch/x86/mm/init_32.c6
-rw-r--r--include/asm-x86/setup.h2
3 files changed, 14 insertions, 10 deletions
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 190546bd3bd..90b51047ce6 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -336,7 +336,7 @@ void __init reserve_initrd(void)
* in i386_start_kernel
*/
initrd_start = ramdisk_image + PAGE_OFFSET;
- initrd_end = initrd_start+ramdisk_size;
+ initrd_end = initrd_start + ramdisk_size;
return;
}
@@ -363,7 +363,7 @@ void __init reserve_initrd(void)
#define MAX_MAP_CHUNK (NR_FIX_BTMAPS << PAGE_SHIFT)
-static void __init relocate_initrd(void)
+static void __init post_reserve_initrd(void)
{
u64 ramdisk_image = boot_params.hdr.ramdisk_image;
u64 ramdisk_size = boot_params.hdr.ramdisk_size;
@@ -417,7 +417,13 @@ static void __init relocate_initrd(void)
/* need to free that, otherwise init highmem will reserve it again */
free_early(ramdisk_image, ramdisk_image+ramdisk_size);
}
-
+#else
+void __init reserve_initrd(void)
+{
+}
+static void __init post_reserve_initrd(void)
+{
+}
#endif /* CONFIG_BLK_DEV_INITRD */
/*
@@ -632,9 +638,7 @@ void __init setup_arch(char **cmdline_p)
* NOTE: at this point the bootmem allocator is fully available.
*/
-#ifdef CONFIG_BLK_DEV_INITRD
- relocate_initrd();
-#endif
+ post_reserve_initrd();
remapped_pgdat_init();
sparse_init();
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 9bc8607d798..98080782ee4 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -597,8 +597,6 @@ void __init zone_sizes_init(void)
}
#endif /* !CONFIG_NEED_MULTIPLE_NODES */
-extern void reserve_initrd(void);
-
void __init setup_bootmem_allocator(void)
{
int i;
@@ -613,9 +611,9 @@ void __init setup_bootmem_allocator(void)
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n", bootmap_size);
reserve_early(bootmap, bootmap + bootmap_size, "BOOTMAP");
-#ifdef CONFIG_BLK_DEV_INITRD
+
reserve_initrd();
-#endif
+
bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, max_low_pfn);
printk(KERN_INFO " mapped low ram: 0 - %08lx\n",
max_pfn_mapped<<PAGE_SHIFT);
diff --git a/include/asm-x86/setup.h b/include/asm-x86/setup.h
index bb12a1619c1..8f85b245056 100644
--- a/include/asm-x86/setup.h
+++ b/include/asm-x86/setup.h
@@ -39,6 +39,8 @@ void reserve_crashkernel(void);
#include <asm/bootparam.h>
void reserve_standard_io_resources(void);
+void reserve_initrd(void);
+
#ifndef _SETUP