linux-kernel - Re: [PATCH net V2] page_pool: mask the page->signature before the checking

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Message-Id: <162850020550.22991.7583122589223288921.git-patchwork-notify@kernel.org>
Date:   Mon, 09 Aug 2021 09:10:05 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Yunsheng Lin <linyunsheng@...wei.com>
Cc:     davem@...emloft.net, kuba@...nel.org, hawk@...nel.org,
        ilias.apalodimas@...aro.org, mcroce@...rosoft.com,
        willy@...radead.org, alexander.duyck@...il.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linuxarm@...neuler.org, chenhao288@...ilicon.com
Subject: Re: [PATCH net V2] page_pool: mask the page->signature before the
 checking

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Fri, 6 Aug 2021 09:39:07 +0800 you wrote:
> As mentioned in commit c07aea3ef4d4 ("mm: add a signature in
> struct page"):
> "The page->signature field is aliased to page->lru.next and
> page->compound_head."
> 
> And as the comment in page_is_pfmemalloc():
> "lru.next has bit 1 set if the page is allocated from the
> pfmemalloc reserves. Callers may simply overwrite it if they
> do not need to preserve that information."
> 
> [...]

Here is the summary with links:
  - [net,V2] page_pool: mask the page->signature before the checking
    https://git.kernel.org/netdev/net/c/0fa32ca438b4

You are awesome, thank you!
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