On Fri, Feb 08, 2013 at 11:28:12AM -0800, Yinghai Lu wrote: > We will pre-reserve irq for all gsi at first for x86, so we have to > use realloc with it.
Where are the GSI's pre-allocated? > > Signed-off-by: Yinghai Lu <[email protected]> > Cc: Konrad Rzeszutek Wilk <[email protected]> > Cc: [email protected] > --- > drivers/xen/events.c | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/drivers/xen/events.c b/drivers/xen/events.c > index 0be4df3..dda38db 100644 > --- a/drivers/xen/events.c > +++ b/drivers/xen/events.c > @@ -482,8 +482,12 @@ static int __must_check xen_allocate_irq_gsi(unsigned > gsi) > /* Legacy IRQ descriptors are already allocated by the arch. */ > if (gsi < NR_IRQS_LEGACY) > irq = gsi; > - else > - irq = irq_alloc_desc_at(gsi, -1); > + else { > + /* for x86, irq already get reserved for gsi */ > + irq = irq_realloc_desc_at(gsi, -1); > + if (irq < 0) > + irq = irq_alloc_desc_at(gsi, -1); > + } > > xen_irq_init(irq); > > -- > 1.7.10.4 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
