From f1006257893917dfb1e0d74cb47b18c0e2908693 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Sat, 16 Jun 2012 16:41:05 -0400 Subject: bounce: allow use of bounce pool via config option The tilegx USB OHCI support needs the bounce pool since we're not using the IOMMU to handle 32-bit addresses. Signed-off-by: Chris Metcalf --- mm/bounce.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'mm') diff --git a/mm/bounce.c b/mm/bounce.c index d1be02ca1889..042086775561 100644 --- a/mm/bounce.c +++ b/mm/bounce.c @@ -24,23 +24,25 @@ static mempool_t *page_pool, *isa_page_pool; -#ifdef CONFIG_HIGHMEM +#if defined(CONFIG_HIGHMEM) || defined(CONFIG_NEED_BOUNCE_POOL) static __init int init_emergency_pool(void) { -#ifndef CONFIG_MEMORY_HOTPLUG +#if defined(CONFIG_HIGHMEM) && !defined(CONFIG_MEMORY_HOTPLUG) if (max_pfn <= max_low_pfn) return 0; #endif page_pool = mempool_create_page_pool(POOL_SIZE, 0); BUG_ON(!page_pool); - printk("highmem bounce pool size: %d pages\n", POOL_SIZE); + printk("bounce pool size: %d pages\n", POOL_SIZE); return 0; } __initcall(init_emergency_pool); +#endif +#ifdef CONFIG_HIGHMEM /* * highmem version, map in to vec */ -- cgit v1.2.3-59-g8ed1b