lkml.org 
[lkml]   [2012]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] efivarfs: Implement exclusive access for {get,set}_variable
On Thu, Oct 11, 2012 at 02:42:36PM +0100, Matt Fleming wrote:
> 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'.

Should this be backported to the stable kernels?

thanks,

greg k-h


\
 
 \ /
  Last update: 2012-10-12 07:21    [W:0.060 / U:0.612 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site