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authorLinus Torvalds <torvalds@linux-foundation.org>2016-10-22 09:39:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-10-22 09:39:10 -0700
commit86c5bf7101991608483c93e7954b93acdc85ea57 (patch)
treec66010150a6cc66df6ab0339f08cee3d623d78c7 /mm/util.c
parentbfb7bfef6f9e8f113b892070fd622ae1c52e676b (diff)
parentd17af5056cf9e9fc05e68832f7c15687fcc12281 (diff)
downloadlinux-86c5bf7101991608483c93e7954b93acdc85ea57.tar.bz2
Merge branch 'mm-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull vmap stack fixes from Ingo Molnar: "This is fallout from CONFIG_HAVE_ARCH_VMAP_STACK=y on x86: stack accesses that used to be just somewhat questionable are now totally buggy. These changes try to do it without breaking the ABI: the fields are left there, they are just reporting zero, or reporting narrower information (the maps file change)" * 'mm-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: mm: Change vm_is_stack_for_task() to vm_is_stack_for_current() fs/proc: Stop trying to report thread stacks fs/proc: Stop reporting eip and esp in /proc/PID/stat mm/numa: Remove duplicated include from mprotect.c
Diffstat (limited to 'mm/util.c')
-rw-r--r--mm/util.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/util.c b/mm/util.c
index 952cbe7ad7b7..1a41553db866 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -230,8 +230,10 @@ void __vma_link_list(struct mm_struct *mm, struct vm_area_struct *vma,
}
/* Check if the vma is being used as a stack by this task */
-int vma_is_stack_for_task(struct vm_area_struct *vma, struct task_struct *t)
+int vma_is_stack_for_current(struct vm_area_struct *vma)
{
+ struct task_struct * __maybe_unused t = current;
+
return (vma->vm_start <= KSTK_ESP(t) && vma->vm_end >= KSTK_ESP(t));
}