linux-kernel - Re: [PATCH 4/5] maple_tree: break on convergence in mas_spanning

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Message-ID: <20241115071444.o5iwkvwpur2lmcnt@master>
Date: Fri, 15 Nov 2024 07:14:44 +0000
From: Wei Yang <richard.weiyang@...il.com>
To: Sidhartha Kumar <sidhartha.kumar@...cle.com>
Cc: linux-kernel@...r.kernel.org, maple-tree@...ts.infradead.org,
	linux-mm@...ck.org, akpm@...ux-foundation.org,
	liam.howlett@...cle.com
Subject: Re: [PATCH 4/5] maple_tree: break on convergence in
 mas_spanning_rebalance()

On Thu, Nov 14, 2024 at 12:05:23PM -0500, Sidhartha Kumar wrote:
>This allows support for using the vacant height to calculate the worst
>case number of nodes needed for wr_rebalance operation.
>mas_spanning_rebalance() was seen to perform unnecessary node allocations.
>We can reduce allocations by breaking early during the rebalancing loop
>once we realize that we have ascended to a common ancestor.
>
>Suggested-by: Liam Howlett <liam.howlett@...cle.com>
>Signed-off-by: Sidhartha Kumar <sidhartha.kumar@...cle.com>

I am just about to send a similar patch :-)

Reviewed-by: Wei Yang <richard.weiyang@...il.com>

-- 
Wei Yang
Help you, Help me