From a2cb4a98f243d01f2c8d5799c764bb96ffa66c44 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Tue, 29 May 2007 16:07:09 -0700 Subject: [PATCH] IB/mlx4: Fix last allocated object tracking in bitmap allocator Set last allocated object to the object after the one just allocated before ORing in the extra top bits. Also handle the case where this wraps around. Signed-off-by: Roland Dreier --- drivers/net/mlx4/alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/mlx4/alloc.c b/drivers/net/mlx4/alloc.c index dfbd5809d744..f8d63d39f592 100644 --- a/drivers/net/mlx4/alloc.c +++ b/drivers/net/mlx4/alloc.c @@ -51,8 +51,8 @@ u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap) if (obj < bitmap->max) { set_bit(obj, bitmap->table); + bitmap->last = (obj + 1) & (bitmap->max - 1); obj |= bitmap->top; - bitmap->last = obj + 1; } else obj = -1; -- 2.20.1