From: Chengming Zhou <chengming.zhou@linux.dev>
To: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: 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 14:49:10 +0800 [thread overview]
Message-ID: <a3ad60ec-6968-4ebb-a561-0ffc5774c30c@linux.dev> (raw)
In-Reply-To: <20240228061400.GL11972@google.com>
On 2024/2/28 14:14, Sergey Senozhatsky wrote:
> On (24/02/27 03:02), Chengming Zhou wrote:
>> @@ -834,13 +841,12 @@ static void __free_zspage(struct zs_pool *pool, struct size_class *class,
>> VM_BUG_ON_PAGE(!PageLocked(page), page);
>> next = get_next_page(page);
>> reset_page(page);
>
> reset_page()->__ClearPageMovable()->PageMovable() expects page to be
> locked.
This seems to make the patch doesn't work anymore... will think about it.
Thanks!
>
>> - unlock_page(page);
>> dec_zone_page_state(page, NR_ZSPAGES);
>> put_page(page);
>> page = next;
>> } while (page != NULL);
next prev parent reply other threads:[~2024-02-28 6:49 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
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 [this message]
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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