(2013/05/16 6:37), KOSAKI Motohiro wrote:
On Wed, May 15, 2013 at 5:06 AM, HATAYAMA Daisuke <d.hatayama@xxxxxxxxxxxxxx> 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.hatayama@xxxxxxxxxxxxxx> --- 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;OK. This is natural definition. Looks good. Acked-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Thanks for your reviewing. Could you or other someone review the next 5/8 patch too? It also changes vmalloc and cc people's review is needed.
-- Thanks. HATAYAMA, Daisuke -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>