[PATCH] permit hugetlb pages to be allocated from highmem

Patch from Rohit Seth: allow hugetlb pages to be allocated from the
highmem zone.

arch/i386/mm/hugetlbpage.c

@@ -319,7 +319,7 @@ set_new_inode(unsigned long len, int prot, int flag, int key)
 	}
 	if (i == MAX_ID)
 		return NULL;
-	inode = kmalloc(sizeof (struct inode), GFP_KERNEL);
+	inode = kmalloc(sizeof (struct inode), GFP_ATOMIC);
 	if (inode == NULL)
 		return NULL;
 
@@ -502,7 +502,7 @@ set_hugetlb_mem_size(int count)
 
 	if (lcount > 0) {	/* Increase the mem size. */
 		while (lcount--) {
-			page = alloc_pages(GFP_ATOMIC, HUGETLB_PAGE_ORDER);
+			page = alloc_pages(__GFP_HIGHMEM, HUGETLB_PAGE_ORDER);
 			if (page == NULL)
 				break;
 			map = page;

arch/i386/mm/init.c

@@ -506,7 +506,7 @@ void __init mem_init(void)
 		/*Will make this kernel command line. */
 		INIT_LIST_HEAD(&htlbpage_freelist);
 		for (i=0; i<htlbzone_pages; i++) {
-			page = alloc_pages(GFP_ATOMIC, HUGETLB_PAGE_ORDER);
+			page = alloc_pages(__GFP_HIGHMEM, HUGETLB_PAGE_ORDER);
 			if (page == NULL)
 				break;
 			map = page;