New zone ZONE_EASY_RECLAIM take 2[5/5]

This is to disable __GFP_EASY_RECLAIM flag at add_to_page_cache(). If this patch is not applied, cache_grow() checks and call BUG(), at here.

	if (flags & ~(SLAB_DMA|SLAB_LEVEL_MASK|SLAB_NO_GROW))
		BUG();

This patch is to solve it.

Index: new_zone_mm/mm/filemap.c
=================================--- new_zone_mm.orig/mm/filemap.c 2005-11-22 15:21:23.000000000 +0900
+++ new_zone_mm/mm/filemap.c 2005-11-22 15:21:27.000000000 +0900
@@ -381,7 +381,7 @@ int filemap_write_and_wait_range(struct
int add_to_page_cache(struct page *page, struct address_space *mapping,
pgoff_t offset, gfp_t gfp_mask)
{
- int error = radix_tree_preload(gfp_mask & ~__GFP_HIGHMEM);
+ int error = radix_tree_preload(gfp_mask & ~(__GFP_HIGHMEM | __GFP_EASY_RECLAIM));

if (error = 0) {
write_lock_irq(&mapping->tree_lock);

Yasunori Goto