linux-ext4 - Re: [PATCH 12/14] fuse: Convert to using invalidate

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Date:   Thu, 10 Jun 2021 14:42:12 +0200
From:   Miklos Szeredi <miklos@...redi.hu>
To:     Jan Kara <jack@...e.cz>
Cc:     linux-fsdevel@...r.kernel.org,
        Christoph Hellwig <hch@...radead.org>,
        Dave Chinner <david@...morbit.com>, ceph-devel@...r.kernel.org,
        Chao Yu <yuchao0@...wei.com>,
        Damien Le Moal <damien.lemoal@....com>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        Jaegeuk Kim <jaegeuk@...nel.org>,
        Jeff Layton <jlayton@...nel.org>,
        Johannes Thumshirn <jth@...nel.org>,
        CIFS <linux-cifs@...r.kernel.org>,
        Ext4 <linux-ext4@...r.kernel.org>,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-mm <linux-mm@...ck.org>,
        linux-xfs <linux-xfs@...r.kernel.org>,
        Steve French <sfrench@...ba.org>, Ted Tso <tytso@....edu>,
        Matthew Wilcox <willy@...radead.org>
Subject: Re: [PATCH 12/14] fuse: Convert to using invalidate_lock

On Mon, 7 Jun 2021 at 16:52, Jan Kara <jack@...e.cz> wrote:
>
> Use invalidate_lock instead of fuse's private i_mmap_sem. The intended
> purpose is exactly the same. By this conversion we fix a long standing
> race between hole punching and read(2) / readahead(2) paths that can
> lead to stale page cache contents.
>
> CC: Miklos Szeredi <miklos@...redi.hu>
> Signed-off-by: Jan Kara <jack@...e.cz>

Reviewed-by: Miklos Szeredi <mszeredi@...hat.com>

Thanks,
Miklos