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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-06-30 15:23:59 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-06-30 15:23:59 +1000
commit6da49a292534d31ca391928ea97f8225774dc1e0 (patch)
tree060c5f5f40dceb10d4528763bc7fc1ccc88210d9 /arch/powerpc/mm
parent17bdc6c0e979ae61879806e4dd93ec3b169d0931 (diff)
parentca56a95eedcc95f8fea7b49c87565cd961d74fe2 (diff)
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Merge remote branch 'origin/master' into next
Diffstat (limited to 'arch/powerpc/mm')
-rw-r--r--arch/powerpc/mm/fault.c10
-rw-r--r--arch/powerpc/mm/init_32.c15
-rw-r--r--arch/powerpc/mm/init_64.c14
-rw-r--r--arch/powerpc/mm/mem.c19
4 files changed, 24 insertions, 34 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 54f4fb994e9..ad35f66c69e 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -31,6 +31,7 @@
#include <linux/kdebug.h>
#include <linux/perf_event.h>
#include <linux/magic.h>
+#include <linux/ratelimit.h>
#include <asm/firmware.h>
#include <asm/page.h>
@@ -346,11 +347,10 @@ bad_area_nosemaphore:
return 0;
}
- if (is_exec && (error_code & DSISR_PROTFAULT)
- && printk_ratelimit())
- printk(KERN_CRIT "kernel tried to execute NX-protected"
- " page (%lx) - exploit attempt? (uid: %d)\n",
- address, current_uid());
+ if (is_exec && (error_code & DSISR_PROTFAULT))
+ printk_ratelimited(KERN_CRIT "kernel tried to execute NX-protected"
+ " page (%lx) - exploit attempt? (uid: %d)\n",
+ address, current_uid());
return SIGSEGV;
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index d65b591e555..5de0f254dbb 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -223,21 +223,6 @@ void free_initmem(void)
#undef FREESEC
}
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- if (start < end)
- printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
- for (; start < end; start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(start));
- init_page_count(virt_to_page(start));
- free_page(start);
- totalram_pages++;
- }
-}
-#endif
-
-
#ifdef CONFIG_8xx /* No 8xx specific .c file to put that in ... */
void setup_initial_memory_limit(phys_addr_t first_memblock_base,
phys_addr_t first_memblock_size)
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 6374b2196a1..f6dbb4c20e6 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -99,20 +99,6 @@ void free_initmem(void)
((unsigned long)__init_end - (unsigned long)__init_begin) >> 10);
}
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- if (start < end)
- printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
- for (; start < end; start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(start));
- init_page_count(virt_to_page(start));
- free_page(start);
- totalram_pages++;
- }
-}
-#endif
-
static void pgd_ctor(void *addr)
{
memset(addr, 0, PGD_TABLE_SIZE);
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 097b288779e..89cbfef5a7d 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -383,6 +383,25 @@ void __init mem_init(void)
mem_init_done = 1;
}
+#ifdef CONFIG_BLK_DEV_INITRD
+void __init free_initrd_mem(unsigned long start, unsigned long end)
+{
+ if (start >= end)
+ return;
+
+ start = _ALIGN_DOWN(start, PAGE_SIZE);
+ end = _ALIGN_UP(end, PAGE_SIZE);
+ pr_info("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+
+ for (; start < end; start += PAGE_SIZE) {
+ ClearPageReserved(virt_to_page(start));
+ init_page_count(virt_to_page(start));
+ free_page(start);
+ totalram_pages++;
+ }
+}
+#endif
+
/*
* This is called when a page has been modified by the kernel.
* It just marks the page as not i-cache clean. We do the i-cache