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-rw-r--r--sysdeps/unix/sysv/linux/s390/bits/mman.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/bits/mman.h b/sysdeps/unix/sysv/linux/s390/bits/mman.h
index 4b926e8cd7..cdd7a63530 100644
--- a/sysdeps/unix/sysv/linux/s390/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/s390/bits/mman.h
@@ -35,6 +35,8 @@
 # define MAP_NONBLOCK	0x10000		/* Do not block on IO.  */
 # define MAP_STACK	0x20000		/* Allocation is for a stack.  */
 # define MAP_HUGETLB	0x40000		/* Create huge page mapping.  */
+# define MAP_SYNC	0x80000		/* Perform synchronous page
+					   faults for the mapping.  */
 #endif
 
 /* Include generic Linux declarations.  */