The patch titled
Subject: lib/rbtree: get successor's color directly
has been removed from the -mm tree. Its filename was
lib-rbtree-get-successors-color-directly.patch
This patch was dropped because it was merged into mainline or a subsystem tree
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From: Wei Yang <richardw.yang@xxxxxxxxxxxxxxx>
Subject: lib/rbtree: get successor's color directly
After move parent assignment out, we can check the color directly.
Link: http://lkml.kernel.org/r/20191028021442.5450-2-richardw.yang@xxxxxxxxxxxxxxx
Signed-off-by: Wei Yang <richardw.yang@xxxxxxxxxxxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: Michel Lespinasse <walken@xxxxxxxxxx>
Reviewed-by: Davidlohr Bueso <dbueso@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/rbtree_augmented.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/include/linux/rbtree_augmented.h~lib-rbtree-get-successors-color-directly
+++ a/include/linux/rbtree_augmented.h
@@ -286,8 +286,7 @@ __rb_erase_augmented(struct rb_node *nod
rb_set_parent_color(child2, parent, RB_BLACK);
rebalance = NULL;
} else {
- unsigned long pc2 = successor->__rb_parent_color;
- rebalance = __rb_is_black(pc2) ? parent : NULL;
+ rebalance = rb_is_black(successor) ? parent : NULL;
}
successor->__rb_parent_color = pc;
tmp = successor;
_
Patches currently in -mm which might be from richardw.yang@xxxxxxxxxxxxxxx are
