linux-kernel - Re: [PATCH 09/17] fs/hpfs: remove unnecessary new_valid

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Message-ID: <20150930111330.GA3006@bbox>
Date:	Wed, 30 Sep 2015 19:13:30 +0800
From:	Yaowei Bai <bywxiaobai@....com>
To:	Mikulas Patocka <mikulas@...bright.com>
Cc:	viro@...iv.linux.org.uk, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/17] fs/hpfs: remove unnecessary new_valid_dev check

On Tue, Sep 29, 2015 at 05:03:24PM +0200, Mikulas Patocka wrote:
> Hi
> 
> I suppose that you should remove the function new_valid_dev at all.

Yes, i thought about that, but actually there's still a user of
new_valid_dev in fs/stat.c:

	#define valid_dev(x)  choose_32_64(old_valid_dev,new_valid_dev)(x)

so i just left new_valid_dev untouched and removed other users in fs first.

> 
> Mikulas
> 
> 
> On Mon, 28 Sep 2015, Yaowei Bai wrote:
> 
> > As new_valid_dev always returns 1, so !new_valid_dev check is not
> > needed, remove it.
> > 
> > Signed-off-by: Yaowei Bai <bywxiaobai@....com>
> > ---
> >  fs/hpfs/namei.c | 2 --
> >  1 file changed, 2 deletions(-)
> > 
> > diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
> > index 9e92c9c..ae4d5a1 100644
> > --- a/fs/hpfs/namei.c
> > +++ b/fs/hpfs/namei.c
> > @@ -227,8 +227,6 @@ static int hpfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, de
> >  	int err;
> >  	if ((err = hpfs_chk_name(name, &len))) return err==-ENOENT ? -EINVAL : err;
> >  	if (hpfs_sb(dir->i_sb)->sb_eas < 2) return -EPERM;
> > -	if (!new_valid_dev(rdev))
> > -		return -EINVAL;
> >  	hpfs_lock(dir->i_sb);
> >  	err = -ENOSPC;
> >  	fnode = hpfs_alloc_fnode(dir->i_sb, hpfs_i(dir)->i_dno, &fno, &bh);
> > -- 
> > 1.9.1
> > 
> > 
> > 

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