Messages in this thread Patch in this message | | | Date | Thu, 27 Aug 2009 20:10:41 +0800 | From | Zhu Yanhai <> | Subject | [PATCH] Make radix_tree_preload alloc one more slot |
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The operations against radix tree always use paths with RADIX_TREE_MAX_PATH + 1 slots, but radix_tree_preload only pre-allocs RADIX_TREE_MAX_PATH slots at present, which causes radix_tree_node_alloc tries to do kmem_cache_alloc at the last slot even if we don't have gfp_mask & __GFP_WAIT in hand.
Signed-off-by: Zhu Yanhai <zhu.yanhai@gmail.com>
--- lib/radix-tree.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/lib/radix-tree.c b/lib/radix-tree.c index 23abbd9..72225a8 100644 --- a/lib/radix-tree.c +++ b/lib/radix-tree.c @@ -79,7 +79,7 @@ static struct kmem_cache *radix_tree_node_cachep; */ struct radix_tree_preload { int nr; - struct radix_tree_node *nodes[RADIX_TREE_MAX_PATH]; + struct radix_tree_node *nodes[RADIX_TREE_MAX_PATH + 1]; }; static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, }; -- 1.6.2.2
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