linux-kernel - Re: [RFC PATCH 3/3] gfs2: Rework read and page fault locking

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Message-ID: <20191125091508.3265wtfzpoupv2lj@box>
Date:   Mon, 25 Nov 2019 12:15:08 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Andreas Gruenbacher <agruenba@...hat.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Steven Whitehouse <swhiteho@...hat.com>,
        Konstantin Khlebnikov <khlebnikov@...dex-team.ru>,
        linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Johannes Weiner <hannes@...xchg.org>, cluster-devel@...hat.com,
        Ronnie Sahlberg <lsahlber@...hat.com>,
        Steve French <sfrench@...ba.org>,
        Bob Peterson <rpeterso@...hat.com>
Subject: Re: [RFC PATCH 3/3] gfs2: Rework read and page fault locking

On Sat, Nov 23, 2019 at 12:53:24AM +0100, Andreas Gruenbacher wrote:
> @@ -778,15 +804,51 @@ static ssize_t gfs2_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
>  
>  static ssize_t gfs2_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
>  {
> +	struct gfs2_inode *ip;
> +	struct gfs2_holder gh;
> +	size_t written = 0;

'written' in a read routine?

-- 
 Kirill A. Shutemov