Messages in this thread | | | Date | Wed, 8 Jun 2022 11:47:12 +0800 | From | Baoquan He <> | Subject | Re: [PATCH 4/5] mm/vmalloc: Extend __find_vmap_area() with one more argument |
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On 06/07/22 at 11:34am, Uladzislau Rezki (Sony) wrote: > __find_vmap_area() finds a "vmap_area" based on passed address. > It scan the specific "vmap_area_root" rb-tree. Extend the function > with one extra argument, so any tree can be specified where the > search has to be done. > > There is no functional change as a result of this patch.
LGTM, Reviewed-by: Baoquan He <bhe@redhat.com>
> > Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com> > --- > mm/vmalloc.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/mm/vmalloc.c b/mm/vmalloc.c > index 82771e555273..b60385101897 100644 > --- a/mm/vmalloc.c > +++ b/mm/vmalloc.c > @@ -814,9 +814,9 @@ static struct vmap_area *find_vmap_area_exceed_addr(unsigned long addr) > return va; > } > > -static struct vmap_area *__find_vmap_area(unsigned long addr) > +static struct vmap_area *__find_vmap_area(unsigned long addr, struct rb_root *root) > { > - struct rb_node *n = vmap_area_root.rb_node; > + struct rb_node *n = root->rb_node; > > addr = (unsigned long)kasan_reset_tag((void *)addr); > > @@ -1840,7 +1840,7 @@ static struct vmap_area *find_vmap_area(unsigned long addr) > struct vmap_area *va; > > spin_lock(&vmap_area_lock); > - va = __find_vmap_area(addr); > + va = __find_vmap_area(addr, &vmap_area_root); > spin_unlock(&vmap_area_lock); > > return va; > @@ -2582,7 +2582,7 @@ struct vm_struct *remove_vm_area(const void *addr) > might_sleep(); > > spin_lock(&vmap_area_lock); > - va = __find_vmap_area((unsigned long)addr); > + va = __find_vmap_area((unsigned long)addr, &vmap_area_root); > if (va && va->vm) { > struct vm_struct *vm = va->vm; > > -- > 2.30.2 > >
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