mm/rmap, migration: Make rmap_walk_anon() and try_to_unmap_anon() more scalable

[linux.git] / mm / ksm.c

diff --git a/mm/ksm.c b/mm/ksm.c
index ae539f0b8aa1115ce2ba86ae8b94ec48a79b8333..7fa37de1ee0c8a1f64f44041584190244981991c 100644 (file)
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1634,7 +1634,7 @@ again:
                struct anon_vma_chain *vmac;
                struct vm_area_struct *vma;
 
-               anon_vma_lock(anon_vma);
+               anon_vma_lock_write(anon_vma);
                anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
                                               0, ULONG_MAX) {
                        vma = vmac->vma;
@@ -1688,7 +1688,7 @@ again:
                struct anon_vma_chain *vmac;
                struct vm_area_struct *vma;
 
-               anon_vma_lock(anon_vma);
+               anon_vma_lock_write(anon_vma);
                anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
                                               0, ULONG_MAX) {
                        vma = vmac->vma;
@@ -1741,7 +1741,7 @@ again:
                struct anon_vma_chain *vmac;
                struct vm_area_struct *vma;
 
-               anon_vma_lock(anon_vma);
+               anon_vma_lock_write(anon_vma);
                anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
                                               0, ULONG_MAX) {
                        vma = vmac->vma;