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authorAnshuman Khandual <anshuman.khandual@arm.com>2020-04-01 21:07:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-02 09:35:29 -0700
commit222100eed264ba9d640af9977bffb6fcb6f11ea3 (patch)
tree4eb02cbbcfc762576e7217baf1eaf84cb199e4f6 /mm/rmap.c
parent7969f2264f92871b9879796f08b455f737373718 (diff)
mm/vma: make is_vma_temporary_stack() available for general use
Currently the declaration and definition for is_vma_temporary_stack() are scattered. Lets make is_vma_temporary_stack() helper available for general use and also drop the declaration from (include/linux/huge_mm.h) which is no longer required. While at this, rename this as vma_is_temporary_stack() in line with existing helpers. This should not cause any functional change. Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Ingo Molnar <mingo@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1582782965-3274-4-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/rmap.c')
-rw-r--r--mm/rmap.c16
1 files changed, 1 insertions, 15 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index e45b9b991e2f..779e78b17ae7 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1699,23 +1699,9 @@ discard:
return ret;
}
-bool is_vma_temporary_stack(struct vm_area_struct *vma)
-{
- int maybe_stack = vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP);
-
- if (!maybe_stack)
- return false;
-
- if ((vma->vm_flags & VM_STACK_INCOMPLETE_SETUP) ==
- VM_STACK_INCOMPLETE_SETUP)
- return true;
-
- return false;
-}
-
static bool invalid_migration_vma(struct vm_area_struct *vma, void *arg)
{
- return is_vma_temporary_stack(vma);
+ return vma_is_temporary_stack(vma);
}
static int page_mapcount_is_zero(struct page *page)