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From: Jordi Pujol Palomer <jordipujolp@gmail.com>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Linux-Fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH] fs/namei.c: Hard link and rename should check same device instead of same mount
Date: Sun, 20 Mar 2016 19:06:25 +0100	[thread overview]
Message-ID: <20160320190625.5e4ef31f@localdomain> (raw)
In-Reply-To: <20160316142516.GK17997@ZenIV.linux.org.uk>

El Wed, 16 Mar 2016 14:25:16 +0000
Al Viro <viro@ZenIV.linux.org.uk> escrigué:

> NAK.  This is absolutely deliberate; moreover, mount --bind $DIR $DIR
> is often used just to set such a boundary.

It means that the way I have proposed may work also ?

Therefore we can develop a new option for binding to let the superuser
choose what is needed for every mount-bind, example:

mount --bind -o boundary $DIR $DIR

mount --bind -o noboundary $DIR1 $DIR2

and allow remount also,

mount -o remount,boundary $DIR

mount -o remount,noboundary $DIR

That seems feasible,

Jordi Pujol i Palomer
Enginyer Tècnic Industrial

  reply	other threads:[~2016-03-20 18:06 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-16 13:05 [PATCH] fs/namei.c: Hard link and rename should check same device instead of same mount Jordi Pujol Palomer
2016-03-16 14:25 ` Al Viro
2016-03-20 18:06   ` Jordi Pujol Palomer [this message]
2016-03-20 18:22     ` Al Viro
2016-03-21 13:35       ` Jordi Pujol Palomer

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