netdev - Re: [PATCH V3] mm: prevent page_frag_alloc() from corrupting the memory

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Message-ID: <CAFL455kBP+_PTgDY51V2YgbMCLjYDKS_Jh4k6pvDnqUnYCf-TA@mail.gmail.com>
Date:   Mon, 18 Jul 2022 15:46:53 +0200
From:   Maurizio Lombardi <mlombard@...hat.com>
To:     Chen Lin <chen45464546@....com>
Cc:     Alexander Duyck <alexander.duyck@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-mm <linux-mm@...ck.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH V3] mm: prevent page_frag_alloc() from corrupting the memory

po 18. 7. 2022 v 13:17 odesílatel Chen Lin <chen45464546@....com> napsal:
>
> Will  this lead to memory leak when device driver miss use this interface muti-times？

No, I tested it and pagecnt_bias and the page refcnt are always consistent.

Maurizio