Messages in this thread | | | Date | Fri, 12 Oct 2012 13:49:01 +0900 | From | Greg KH <> | Subject | Re: [PATCH] efivarfs: Implement exclusive access for {get,set}_variable |
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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
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