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From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Chengming Zhou <chengming.zhou@linux.dev>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>,
	Chengming Zhou <zhouchengming@bytedance.com>,
	yosryahmed@google.com, hannes@cmpxchg.org, nphamcs@gmail.com,
	Andrew Morton <akpm@linux-foundation.org>,
	Minchan Kim <minchan@kernel.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 1/2] mm/zsmalloc: don't hold locks of all pages when free_zspage()
Date: Wed, 28 Feb 2024 15:07:56 +0900	[thread overview]
Message-ID: <20240228060756.GK11972@google.com> (raw)
In-Reply-To: <913f1a04-8fa2-46b0-85dc-edd23477a1d6@linux.dev>

On (24/02/28 13:42), Chengming Zhou wrote:
> > I'm curious if we want to add RCU to the picture, given that zsmalloc
> > is quite often run under memory pressure.
> 
> Yes, it's a reasonable point. But given struct zspage size has only 56 bytes,
> it maybe not a problem to delay its free to RCU?

Hmm, yeah, probably.  I think it'll make sense to wait for more
"go for it" from Cc-ed folks before we land this series.


  reply	other threads:[~2024-02-28  6:08 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-27  3:02 [PATCH 0/2] mm/zsmalloc: simplify synchronization between zs_page_migrate() and free_zspage() Chengming Zhou
2024-02-27  3:02 ` [PATCH 1/2] mm/zsmalloc: don't hold locks of all pages when free_zspage() Chengming Zhou
2024-02-28  4:33   ` Sergey Senozhatsky
2024-02-28  5:14     ` Chengming Zhou
2024-02-28  5:29       ` Sergey Senozhatsky
2024-02-28  5:42         ` Chengming Zhou
2024-02-28  6:07           ` Sergey Senozhatsky [this message]
2024-02-28  6:01   ` Sergey Senozhatsky
2024-02-28  6:44     ` Chengming Zhou
2024-02-28  6:14   ` Sergey Senozhatsky
2024-02-28  6:49     ` Chengming Zhou
2024-02-27  3:02 ` [PATCH 2/2] mm/zsmalloc: remove the deferred free mechanism Chengming Zhou
2024-02-28  1:57 ` [PATCH 0/2] mm/zsmalloc: simplify synchronization between zs_page_migrate() and free_zspage() Sergey Senozhatsky
2024-02-28  2:22   ` [External] " Chengming Zhou
2024-02-28  3:54 ` Sergey Senozhatsky

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