linux-kernel - RE: [PATCH v2] 9p: retrieve fid from file when file instance exist.

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Message-ID: <HE1PR0802MB2555BD29BC9B8528AA914998F46D0@HE1PR0802MB2555.eurprd08.prod.outlook.com>
Date:   Thu, 2 Jul 2020 09:54:41 +0000
From:   Jianyong Wu <Jianyong.Wu@....com>
To:     Dominique Martinet <asmadeus@...ewreck.org>
CC:     "ericvh@...il.com" <ericvh@...il.com>,
        "lucho@...kov.net" <lucho@...kov.net>,
        "v9fs-developer@...ts.sourceforge.net" 
        <v9fs-developer@...ts.sourceforge.net>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Steve Capper <Steve.Capper@....com>,
        Kaly Xin <Kaly.Xin@....com>, Justin He <Justin.He@....com>,
        Wei Chen <Wei.Chen@....com>
Subject: RE: [PATCH v2] 9p: retrieve fid from file when file instance exist.

Hi Dominique,

> -----Original Message-----
> From: Dominique Martinet <asmadeus@...ewreck.org>
> Sent: Thursday, July 2, 2020 3:56 PM
> To: Jianyong Wu <Jianyong.Wu@....com>
> Cc: ericvh@...il.com; lucho@...kov.net; v9fs-
> developer@...ts.sourceforge.net; linux-kernel@...r.kernel.org; Steve
> Capper <Steve.Capper@....com>; Kaly Xin <Kaly.Xin@....com>; Justin He
> <Justin.He@....com>; Wei Chen <Wei.Chen@....com>
> Subject: Re: [PATCH v2] 9p: retrieve fid from file when file instance exist.
>
> Jianyong Wu wrote on Thu, Jul 02, 2020:
> > Yeah, should check fid before "v9fs_fid_lookup", how about
> >
> > if (iattr->ia_valid & ATTR_FILE) {
> >                 fid = iattr->ia_file->private_data;
> >                 WARN_ON(!fid);
> >  }
> > If (!fid)
> > fid = v9fs_fid_lookup(dentry);
>
> Yes, that would be fine.
>
Ok, I will apply this change both in vfs_inode.c and vfs_inode_dotl.c next version.

Thanks
Jianyong

> --
> Dominique
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