fix misuse of search_lock in growproc

cde83c25 · Nickolai Zeldovich · 22cc499f · cde83c25
--- a/kernel/proc.cc
+++ b/kernel/proc.cc
@@ -424,7 +424,7 @@ growproc(int n)
  uptr newstart = PGROUNDUP(curbrk);
  s64 newn = PGROUNDUP(n + curbrk - newstart);
  range *prev = 0;
-  auto span = m->cr.search_lock(newstart, newstart + newn + PGSIZE);
+  auto span = m->cr.search_lock(newstart, newn + PGSIZE);
  for (range *r: span) {
    vma *e = (vma*) r;