nfsd: nfsd should drop CAP_MKNOD for non-root

[safe/jmp/linux-2.6] / mm / mlock.c

diff --git a/mm/mlock.c b/mm/mlock.c
index 028ec48..cbe9e05 100644 (file)
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -311,7 +311,10 @@ long mlock_vma_pages_range(struct vm_area_struct *vma,
                        is_vm_hugetlb_page(vma) ||
                        vma == get_gate_vma(current))) {
 
-               return __mlock_vma_pages_range(vma, start, end, 1);
+               __mlock_vma_pages_range(vma, start, end, 1);
+
+               /* Hide errors from mmap() and other callers */
+               return 0;
        }
 
        /*
@@ -657,7 +660,7 @@ void *alloc_locked_buffer(size_t size)
        return buffer;
 }
 
-void free_locked_buffer(void *buffer, size_t size)
+void release_locked_buffer(void *buffer, size_t size)
 {
        unsigned long pgsz = PAGE_ALIGN(size) >> PAGE_SHIFT;
 
@@ -667,6 +670,11 @@ void free_locked_buffer(void *buffer, size_t size)
        current->mm->locked_vm -= pgsz;
 
        up_write(&current->mm->mmap_sem);
+}
+
+void free_locked_buffer(void *buffer, size_t size)
+{
+       release_locked_buffer(buffer, size);
 
        kfree(buffer);
 }