linux-kernel - Re: [PATCH v2 11/25] fs: Make page_mkwrite_check

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Message-ID: <20200213154419.szxgd5tv2tjxmlz7@box>
Date:   Thu, 13 Feb 2020 18:44:19 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 11/25] fs: Make page_mkwrite_check_truncate thp-aware

On Tue, Feb 11, 2020 at 08:18:31PM -0800, Matthew Wilcox wrote:
> From: "Matthew Wilcox (Oracle)" <willy@...radead.org>
> 
> If the page is compound, check the appropriate indices and return the
> appropriate sizes.

Is it guarnteed that the page is never called on tail page?

-- 
 Kirill A. Shutemov