Re: Driver-Core: devtmpfs - reset inode permissions before unlinking

From: Kay Sievers
Date: Thu Jan 14 2010 - 16:00:14 EST

On Thu, Jan 14, 2010 at 21:53, Henrique de Moraes Holschuh
<hmh@xxxxxxxxxx> wrote:
> On Wed, 13 Jan 2010, Kay Sievers wrote:
>> across the device lifetime by creating hardlinks, in the unusual case
>> that there is a user-writable directory on the same filesystem.
> Does a tmpfs mounted in /dev/shm count as "user-writable directory on the
> same filesystem" ?

Not if it's a separate tmpfs mount, which is recommended. Only if it's
just a plain directory on the /dev filesystem.

Udev does the same and resets the permissions of the inode before deleting it.

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