From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Matthew Wilcox To: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Matthew Wilcox Subject: [PATCH 03/62] radix tree test suite: Check reclaim bit Date: Wed, 22 Nov 2017 13:06:40 -0800 Message-Id: <20171122210739.29916-4-willy@infradead.org> In-Reply-To: <20171122210739.29916-1-willy@infradead.org> References: <20171122210739.29916-1-willy@infradead.org> Sender: owner-linux-mm@kvack.org List-ID: From: Matthew Wilcox In order to test the memory allocation failure paths, the radix tree test suite fails allocations if __GFP_NOWARN is set. That happens to work for the radix tree implementation, but the semantics we really want are that we want to fail allocations which are not GFP_KERNEL. Do this by failing allocations which don't have the DIRECT_RECLAIM bit set. Signed-off-by: Matthew Wilcox --- tools/testing/radix-tree/linux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/radix-tree/linux.c index 6903ccf35595..f7f3caed3650 100644 --- a/tools/testing/radix-tree/linux.c +++ b/tools/testing/radix-tree/linux.c @@ -29,7 +29,7 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, int flags) { struct radix_tree_node *node; - if (flags & __GFP_NOWARN) + if (!(flags & __GFP_DIRECT_RECLAIM)) return NULL; pthread_mutex_lock(&cachep->lock); -- 2.15.0 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org