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-rw-r--r--arch/powerpc/mm/fault.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 565b7a2..91c7b86 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -30,6 +30,7 @@
#include <linux/kprobes.h>
#include <linux/kdebug.h>
+#include <asm/firmware.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mmu.h>
@@ -283,7 +284,7 @@ good_area:
}
pte_update(ptep, 0, _PAGE_HWEXEC |
_PAGE_ACCESSED);
- _tlbie(address, mm->context.id);
+ local_flush_tlb_page(vma, address);
pte_unmap_unlock(ptep, ptl);
up_read(&mm->mmap_sem);
return 0;
@@ -318,9 +319,16 @@ good_area:
goto do_sigbus;
BUG();
}
- if (ret & VM_FAULT_MAJOR)
+ if (ret & VM_FAULT_MAJOR) {
current->maj_flt++;
- else
+#ifdef CONFIG_PPC_SMLPAR
+ if (firmware_has_feature(FW_FEATURE_CMO)) {
+ preempt_disable();
+ get_lppaca()->page_ins += (1 << PAGE_FACTOR);
+ preempt_enable();
+ }
+#endif
+ } else
current->min_flt++;
up_read(&mm->mmap_sem);
return 0;
@@ -339,7 +347,7 @@ bad_area_nosemaphore:
&& printk_ratelimit())
printk(KERN_CRIT "kernel tried to execute NX-protected"
" page (%lx) - exploit attempt? (uid: %d)\n",
- address, current->uid);
+ address, current_uid());
return SIGSEGV;
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