Re: [next:akpm 157/313] arch/tile/mm/hugetlbpage.c:256:20: error:'mm' undeclared

From: Michel Lespinasse
Date: Fri Nov 09 2012 - 01:22:43 EST


On Fri, Nov 09, 2012 at 01:51:54PM +0800, kbuild test robot wrote:
> tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm
> head: 6703d59701f7592c897b975de3952ba6bbb98b83
> commit: 921a29df6a2bab7c1bfbb11eb5648b92bdc250e8 [157/313] mm: use vm_unmapped_area() in hugetlbfs on tile architecture
> config: make ARCH=tile tilegx_defconfig
>
> All error/warnings:
>
> arch/tile/mm/hugetlbpage.c: In function 'hugetlb_get_unmapped_area_topdown':
> arch/tile/mm/hugetlbpage.c:256:20: error: 'mm' undeclared (first use in this function)
> arch/tile/mm/hugetlbpage.c:256:20: note: each undeclared identifier is reported only once for each function it appears in

commit 86234092170b43771c3f6257cb320ff6e2c10c52
Author: Michel Lespinasse <walken@xxxxxxxxxx>
Date: Thu Nov 8 22:13:58 2012 -0800

fix mm: use vm_unmapped_area() in hugetlbfs on tile architecture

diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
index 6f74cce053e1..650ccff8378c 100644
--- a/arch/tile/mm/hugetlbpage.c
+++ b/arch/tile/mm/hugetlbpage.c
@@ -253,7 +253,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
info.flags = VM_UNMAPPED_AREA_TOPDOWN;
info.length = len;
info.low_limit = PAGE_SIZE;
- info.high_limit = mm->mmap_base;
+ info.high_limit = current->mm->mmap_base;
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
info.align_offset = 0;
addr = vm_unmapped_area(&info);
--
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