Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu <jiang....@huawei.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: "H. Peter Anvin" <h...@zytor.com>
Cc: x...@kernel.org
Cc: Yinghai Lu <ying...@kernel.org>
Cc: Tang Chen <tangc...@cn.fujitsu.com>
Cc: Wen Congyang <we...@cn.fujitsu.com>
Cc: Jianguo Wu <wujian...@huawei.com>
Cc: linux-kernel@vger.kernel.org
---
arch/x86/mm/init.c | 14 +++-----------
arch/x86/mm/init_64.c | 4 ++--
2 files changed, 5 insertions(+), 13 deletions(-)
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 1120b82..de63100 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -334,7 +334,6 @@ int devmem_is_allowed(unsigned long pagenr)
void free_init_pages(char *what, unsigned long begin, unsigned long end)
{
- unsigned long addr;
unsigned long begin_aligned, end_aligned;
/* Make sure boundaries are page aligned */
@@ -349,8 +348,6 @@ void free_init_pages(char *what, unsigned long begin,
unsigned long end)
if (begin >= end)
return;
- addr = begin;
-
/*
* If debugging page accesses then do not free this memory but
* mark them not present - any buggy init-section access will
@@ -369,18 +366,13 @@ void free_init_pages(char *what, unsigned long begin,
unsigned long end)
set_memory_nx(begin, (end - begin) >> PAGE_SHIFT);
set_memory_rw(begin, (end - begin) >> PAGE_SHIFT);
- printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
-
- for (; addr < end; addr += PAGE_SIZE) {
- memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
- free_reserved_page(virt_to_page(addr));
- }
+ free_reserved_area(begin, end, POISON_FREE_INITMEM, what);
#endif
}
void free_initmem(void)
{
- free_init_pages("unused kernel memory",
+ free_init_pages("unused kernel",
(unsigned long)(&__init_begin),
(unsigned long)(&__init_end));
}
@@ -397,7 +389,7 @@ void __init free_initrd_mem(unsigned long start, unsigned
long end)
* - relocate_initrd()
* So here We can do PAGE_ALIGN() safely to get partial page to be freed
*/
- free_init_pages("initrd memory", start, PAGE_ALIGN(end));
+ free_init_pages("initrd", start, PAGE_ALIGN(end));
}
#endif
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 6087e02..05ef3ff 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1152,11 +1152,11 @@ void mark_rodata_ro(void)
set_memory_ro(start, (end-start) >> PAGE_SHIFT);
#endif
- free_init_pages("unused kernel memory",
+ free_init_pages("unused kernel",
(unsigned long) page_address(virt_to_page(text_end)),
(unsigned long)
page_address(virt_to_page(rodata_start)));
- free_init_pages("unused kernel memory",
+ free_init_pages("unused kernel",
(unsigned long) page_address(virt_to_page(rodata_end)),
(unsigned long) page_address(virt_to_page(data_start)));
}
--
1.7.9.5
--
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