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authorRoland Dreier <rolandd@cisco.com>2007-05-29 23:07:09 (GMT)
committerRoland Dreier <rolandd@cisco.com>2007-05-29 23:07:09 (GMT)
commita2cb4a98f243d01f2c8d5799c764bb96ffa66c44 (patch)
tree8bf4e73ab877936da113969c941a51e6aef8d319
parentd998ccce020e2cfcf11c6b57503532930ede2894 (diff)
downloadlinux-fsl-qoriq-a2cb4a98f243d01f2c8d5799c764bb96ffa66c44.tar.xz
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 dfbd580..f8d63d3 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;