X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmlock.c;h=6b55e3efe0df4ebd9aafd71e9317bc664956006f;hb=9cf3b5fa6f7b246784d62a2a7637a871290c9ab9;hp=2689a08c79affabda1e46b65271c60e3ba653ab7;hpb=50f3515828024582402044bcced6804c070c491c;p=pandora-kernel.git

diff --git a/mm/mlock.c b/mm/mlock.c
index 2689a08c79af..6b55e3efe0df 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -135,13 +135,6 @@ void munlock_vma_page(struct page *page)
 	}
 }
 
-static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
-{
-	return (vma->vm_flags & VM_GROWSDOWN) &&
-		(vma->vm_start == addr) &&
-		!vma_stack_continue(vma->vm_prev, addr);
-}
-
 /**
  * __mlock_vma_pages_range() -  mlock a range of pages in the vma.
  * @vma:   target vma
@@ -188,12 +181,6 @@ static long __mlock_vma_pages_range(struct vm_area_struct *vma,
 	if (vma->vm_flags & VM_LOCKED)
 		gup_flags |= FOLL_MLOCK;
 
-	/* We don't try to access the guard page of a stack vma */
-	if (stack_guard_page(vma, start)) {
-		addr += PAGE_SIZE;
-		nr_pages--;
-	}
-
 	return __get_user_pages(current, mm, addr, nr_pages, gup_flags,
 				NULL, NULL, nonblocking);
 }