linux-kernel - Re: [PATCH v2 2/9] mm/mshare: pre-populate msharefs with information file

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Message-ID: <Yr4rP7rfxqOzxbCZ@ZenIV>
Date:   Fri, 1 Jul 2022 00:01:19 +0100
From:   Al Viro <viro@...iv.linux.org.uk>
To:     Khalid Aziz <khalid.aziz@...cle.com>
Cc:     akpm@...ux-foundation.org, willy@...radead.org,
        aneesh.kumar@...ux.ibm.com, arnd@...db.de, 21cnbao@...il.com,
        corbet@....net, dave.hansen@...ux.intel.com, david@...hat.com,
        ebiederm@...ssion.com, hagen@...u.net, jack@...e.cz,
        keescook@...omium.org, kirill@...temov.name, kucharsk@...il.com,
        linkinjeon@...nel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        longpeng2@...wei.com, luto@...nel.org, markhemm@...glemail.com,
        pcc@...gle.com, rppt@...nel.org, sieberf@...zon.com,
        sjpark@...zon.de, surenb@...gle.com, tst@...oebel-theuer.de,
        yzaikin@...gle.com
Subject: Re: [PATCH v2 2/9] mm/mshare: pre-populate msharefs with information
 file

On Wed, Jun 29, 2022 at 04:53:53PM -0600, Khalid Aziz wrote:

> +static void
> +mshare_evict_inode(struct inode *inode)
> +{
> +	clear_inode(inode);
> +}

Again, what for?  And while we are at it, shouldn't you evict the
pages when inode gets freed and ->i_data along with it?
IOW, aren't you missing
                truncate_inode_pages_final(&inode->i_data);
That, or just leave ->evict_inode NULL...