From: Matt Fleming <matt.fleming@intel.com>
To: Jeremy Kerr <jeremy.kerr@canonical.com>
Cc: linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org,
Andy Whitcroft <apw@canonical.com>,
Matthew Garrett <mjg@redhat.com>
Subject: Re: [PATCH] efivarfs: Implement exclusive access for {get,set}_variable
Date: Thu, 11 Oct 2012 14:42:36 +0100 [thread overview]
Message-ID: <1349962956.15966.521.camel@mfleming-mobl1.ger.corp.intel.com> (raw)
In-Reply-To: <1349961551.174484.910885224391.1.gpush@pecola>
On Thu, 2012-10-11 at 21:19 +0800, Jeremy Kerr wrote:
> Currently, efivarfs does not enforce exclusion over the get_variable and
> set_variable operations. Section 7.1 of UEFI requires us to only allow a
> single processor to enter {get,set}_variable services at once.
>
> This change acquires the efivars->lock over calls to these operations
> from the efivarfs paths.
>
> Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
>
> ---
> drivers/firmware/efivars.c | 68 +++++++++++++++++++++++--------------
> 1 file changed, 43 insertions(+), 25 deletions(-)
Thanks, applied to 'next'.
next prev parent reply other threads:[~2012-10-11 13:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-11 13:19 Jeremy Kerr
2012-10-11 13:42 ` Matt Fleming [this message]
2012-10-12 4:49 ` Greg KH
2012-10-12 5:04 ` Jeremy Kerr
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