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authorRoland Dreier <rolandd@cisco.com>2007-05-29 16:07:09 -0700
committerRoland Dreier <rolandd@cisco.com>2007-05-29 16:07:09 -0700
commita2cb4a98f243d01f2c8d5799c764bb96ffa66c44 (patch)
tree8bf4e73ab877936da113969c941a51e6aef8d319
parentIB/cm: Fix stale connection detection (diff)
downloadlinux-dev-a2cb4a98f243d01f2c8d5799c764bb96ffa66c44.tar.xz
linux-dev-a2cb4a98f243d01f2c8d5799c764bb96ffa66c44.zip
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 <rolandd@cisco.com>
-rw-r--r--drivers/net/mlx4/alloc.c2
1 files changed, 1 insertions, 1 deletions
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;