X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmemory.c;h=7e3683fd4f3ca706439ce3bbac5c79b23b19da61;hb=7352349a19e84b28f10668eca9cbb6bbbfa9d38e;hp=e347e106ca3ad4278157431cc39b01ee94bdb931;hpb=0c50527379496bb7a662f181d0baf0bf2c7a88a6;p=linux-2.6

diff --git a/mm/memory.c b/mm/memory.c
index e347e106ca..7e3683fd4f 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -87,7 +87,7 @@ int randomize_va_space __read_mostly = 1;
 static int __init disable_randmaps(char *s)
 {
 	randomize_va_space = 0;
-	return 0;
+	return 1;
 }
 __setup("norandmaps", disable_randmaps);
 
@@ -1071,6 +1071,8 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 			}
 			if (pages) {
 				pages[i] = page;
+
+				flush_anon_page(page, start);
 				flush_dcache_page(page);
 			}
 			if (vmas)
@@ -1877,7 +1879,6 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		goto out;
 
 	entry = pte_to_swp_entry(orig_pte);
-again:
 	page = lookup_swap_cache(entry);
 	if (!page) {
  		swapin_readahead(entry, address, vma);
@@ -1901,12 +1902,6 @@ again:
 
 	mark_page_accessed(page);
 	lock_page(page);
-	if (!PageSwapCache(page)) {
-		/* Page migration has occured */
-		unlock_page(page);
-		page_cache_release(page);
-		goto again;
-	}
 
 	/*
 	 * Back out if somebody else already faulted in this pte.
@@ -2352,10 +2347,8 @@ int make_pages_present(unsigned long addr, unsigned long end)
 	if (!vma)
 		return -1;
 	write = (vma->vm_flags & VM_WRITE) != 0;
-	if (addr >= end)
-		BUG();
-	if (end > vma->vm_end)
-		BUG();
+	BUG_ON(addr >= end);
+	BUG_ON(end > vma->vm_end);
 	len = (end+PAGE_SIZE-1)/PAGE_SIZE-addr/PAGE_SIZE;
 	ret = get_user_pages(current, current->mm, addr,
 			len, write, 0, NULL, NULL);