On Tue, May 14, 2013 at 10:57:23AM +0900, HATAYAMA Daisuke wrote: > Currently, __find_vmap_area searches for the kernel VM area starting > at a given address. This patch changes this behavior so that it > searches for the kernel VM area to which the address belongs. This > change is needed by remap_vmalloc_range_partial to be introduced in > later patch that receives any position of kernel VM area as target > address. > > This patch changes the condition (addr > va->va_start) to the > equivalent (addr >= va->va_end) by taking advantage of the fact that > each kernel VM area is non-overlapping. > > Signed-off-by: HATAYAMA Daisuke <d.hatay...@jp.fujitsu.com>
This will require ack from mm folks. CCing some of them. Thanks Vivek > --- > > mm/vmalloc.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/mm/vmalloc.c b/mm/vmalloc.c > index d365724..3875fa2 100644 > --- a/mm/vmalloc.c > +++ b/mm/vmalloc.c > @@ -292,7 +292,7 @@ static struct vmap_area *__find_vmap_area(unsigned long > addr) > va = rb_entry(n, struct vmap_area, rb_node); > if (addr < va->va_start) > n = n->rb_left; > - else if (addr > va->va_start) > + else if (addr >= va->va_end) > n = n->rb_right; > else > return va; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
