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Subject[RFC PATCH v1 02/33] mm/alpha: use common help functions to free reserved pages
Date
Use common help functions to free reserved pages.
Also include <asm/sections.h> to avoid local declarations.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
---
arch/alpha/kernel/sys_nautilus.c | 5 ++---
arch/alpha/mm/init.c | 24 +++---------------------
arch/alpha/mm/numa.c | 3 +--
3 files changed, 6 insertions(+), 26 deletions(-)

diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index 4d4c046..a8b9d66 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -185,7 +185,6 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr)
mb();
}

-extern void free_reserved_mem(void *, void *);
extern void pcibios_claim_one_bus(struct pci_bus *);

static struct resource irongate_mem = {
@@ -234,8 +233,8 @@ nautilus_init_pci(void)
if (pci_mem < memtop)
memtop = pci_mem;
if (memtop > alpha_mv.min_mem_address) {
- free_reserved_mem(__va(alpha_mv.min_mem_address),
- __va(memtop));
+ free_reserved_area((unsigned long)__va(alpha_mv.min_mem_address),
+ (unsigned long)__va(memtop), 0, NULL);
printk("nautilus_init_pci: %ldk freed\n",
(memtop - alpha_mv.min_mem_address) >> 10);
}
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index 1ad6ca7..0ba85ee 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -31,6 +31,7 @@
#include <asm/console.h>
#include <asm/tlb.h>
#include <asm/setup.h>
+#include <asm/sections.h>

extern void die_if_kernel(char *,struct pt_regs *,long);

@@ -281,8 +282,6 @@ printk_memory_info(void)
{
unsigned long codesize, reservedpages, datasize, initsize, tmp;
extern int page_is_ram(unsigned long) __init;
- extern char _text, _etext, _data, _edata;
- extern char __init_begin, __init_end;

/* printk all informations */
reservedpages = 0;
@@ -318,32 +317,15 @@ mem_init(void)
#endif /* CONFIG_DISCONTIGMEM */

void
-free_reserved_mem(void *start, void *end)
-{
- void *__start = start;
- for (; __start < end; __start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(__start));
- init_page_count(virt_to_page(__start));
- free_page((long)__start);
- totalram_pages++;
- }
-}
-
-void
free_initmem(void)
{
- extern char __init_begin, __init_end;
-
- free_reserved_mem(&__init_begin, &__init_end);
- printk ("Freeing unused kernel memory: %ldk freed\n",
- (&__init_end - &__init_begin) >> 10);
+ free_initmem_default(0);
}

#ifdef CONFIG_BLK_DEV_INITRD
void
free_initrd_mem(unsigned long start, unsigned long end)
{
- free_reserved_mem((void *)start, (void *)end);
- printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+ free_reserved_area(start, end, 0, "initrd");
}
#endif
diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
index 3973ae3..3388504 100644
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -17,6 +17,7 @@

#include <asm/hwrpb.h>
#include <asm/pgalloc.h>
+#include <asm/sections.h>

pg_data_t node_data[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
@@ -325,8 +326,6 @@ void __init mem_init(void)
{
unsigned long codesize, reservedpages, datasize, initsize, pfn;
extern int page_is_ram(unsigned long) __init;
- extern char _text, _etext, _data, _edata;
- extern char __init_begin, __init_end;
unsigned long nid, i;
high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);

--
1.7.9.5


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