mm: introduce INIT_VMA()
Some VMA struct fields need to be initialized once the VMA structure is
allocated.
Currently this only concerns anon_vma_chain field but some other will be
added to support the speculative page fault.
Instead of spreading the initialization calls all over the code, let's
introduce a dedicated inline function.
Change-Id: I9f6b29dc74055354318b548e2b6b22c37d4c61bb
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Patch-mainline: linux-mm @ Tue, 17 Apr 2018 16:33:13
[vinmenon@codeaurora.org: 4.9 porting changes]
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
diff --git a/mm/nommu.c b/mm/nommu.c
index 44265e0..d033ee8 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1243,7 +1243,7 @@
region->vm_flags = vm_flags;
region->vm_pgoff = pgoff;
- INIT_LIST_HEAD(&vma->anon_vma_chain);
+ INIT_VMA(vma);
vma->vm_flags = vm_flags;
vma->vm_pgoff = pgoff;