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From: "Li,Rongqing" <lirongqing@baidu.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Michel Lespinasse <michel@lespinasse.org>,
	"dbueso@suse.de" <dbueso@suse.de>,
	"mingo@kernel.org" <mingo@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: 答复: 答复: [PATCH] rbtree: stop iteration early in rb_find_first
Date: Wed, 25 Aug 2021 18:26:59 +0000	[thread overview]
Message-ID: <000ff2757fc24d91ade7cab0195ab9b4@baidu.com> (raw)
In-Reply-To: <20210825171850.GD17784@worktop.programming.kicks-ass.net>









    
On Wed, Aug 25, 2021 at 04:01:53PM +0000, Li,Rongqing wrote:
> 
> >>
> >>
> >>                         10
> >>                       /
> >>                      5
> >>                       \
> >>                        10

>That again breaks the above case.

                       10
                     /
                    5
                       \
                      10

the above case should not exist. like below, when second 10 is inserted, it should be inserted to right leaf
                       10
                     /
                    5

as a result, it should be

                       10
                     /     \
                    5      10

since 10 is not less 10, so new 10 is inserted to right.
and it depends on 
bool (*less)(struct rb_node *, const struct rb_node *) which not return true when equal

this case should be ok
                       10
                           \
                           12
                            /
                          10

-Li







    

  reply	other threads:[~2021-08-25 18:27 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-25  9:59 Li RongQing
2021-08-25 11:39 ` Peter Zijlstra
2021-08-25 11:53   ` Michel Lespinasse
2021-08-25 11:58     ` Michel Lespinasse
2021-08-25 12:31       ` Peter Zijlstra
2021-08-25 13:21       ` Peter Zijlstra
2021-08-25 16:08         ` 答复: " Li,Rongqing
     [not found]         ` <90ea3457ddc7485fbc8db5f7ca5b07ab@baidu.com>
2021-08-25 17:18           ` Peter Zijlstra
2021-08-25 18:26             ` Li,Rongqing [this message]
2021-08-25 19:20               ` 答复: " Peter Zijlstra
2021-08-26  5:03                 ` 答复: " Li,Rongqing
2021-08-25 12:29     ` Peter Zijlstra
2021-08-25 12:32       ` Peter Zijlstra

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