nptl: Use __mprotect consistently for _STACK_GROWS_UP

2 files changed, 6 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index 3d2bcc6de1..e9dd4aead8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-07-12  Florian Weimer  <fweimer@redhat.com>
+
+	* nptl/allocatestack.c [_STACK_GROWS_UP] (allocate_stack): Call
+	__mprotect, not mprotect.
+
 2018-07-11  Florian Weimer  <fweimer@redhat.com>
 
 	* io/Makefile (headers): Add bits/statx.h.
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c
index f9e053f9e5..04e3f08465 100644
--- a/nptl/allocatestack.c
+++ b/nptl/allocatestack.c
@@ -728,7 +728,7 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
          /* The guard size difference might be > 0, but once rounded
             to the nearest page the size difference might be zero.  */
          if (new_guard > old_guard
-             && mprotect (old_guard, new_guard - old_guard, prot) != 0)
+             && __mprotect (old_guard, new_guard - old_guard, prot) != 0)
 	    goto mprot_error;
 #endif