DSS2: Small VRFB context allocation bug fixed

[pandora-kernel.git] / mm / mremap.c

diff --git a/mm/mremap.c b/mm/mremap.c
index 8ea5c24..1a77439 100644 (file)
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -18,6 +18,7 @@
 #include <linux/highmem.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
+#include <linux/mmu_notifier.h>
 
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
@@ -74,7 +75,11 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
        struct mm_struct *mm = vma->vm_mm;
        pte_t *old_pte, *new_pte, pte;
        spinlock_t *old_ptl, *new_ptl;
+       unsigned long old_start;
 
+       old_start = old_addr;
+       mmu_notifier_invalidate_range_start(vma->vm_mm,
+                                           old_start, old_end);
        if (vma->vm_file) {
                /*
                 * Subtle point from Rajesh Venkatasubramanian: before
@@ -116,6 +121,7 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
        pte_unmap_unlock(old_pte - 1, old_ptl);
        if (mapping)
                spin_unlock(&mapping->i_mmap_lock);
+       mmu_notifier_invalidate_range_end(vma->vm_mm, old_start, old_end);
 }
 
 #define LATENCY_LIMIT  (64 * PAGE_SIZE)
@@ -291,7 +297,7 @@ unsigned long do_mremap(unsigned long addr,
                if ((addr <= new_addr) && (addr+old_len) > new_addr)
                        goto out;
 
-               ret = security_file_mmap(0, 0, 0, 0, new_addr, 1);
+               ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1);
                if (ret)
                        goto out;
 
@@ -399,7 +405,7 @@ unsigned long do_mremap(unsigned long addr,
                                goto out;
                        }
 
-                       ret = security_file_mmap(0, 0, 0, 0, new_addr, 1);
+                       ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1);
                        if (ret)
                                goto out;
                }