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-rw-r--r--sysdeps/unix/sysv/linux/bits/mman-linux.h1
-rw-r--r--sysdeps/unix/sysv/linux/hppa/bits/mman.h2
2 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h b/sysdeps/unix/sysv/linux/bits/mman-linux.h
index 1fb7f88..c3818ce 100644
--- a/sysdeps/unix/sysv/linux/bits/mman-linux.h
+++ b/sysdeps/unix/sysv/linux/bits/mman-linux.h
@@ -91,6 +91,7 @@
writable. */
# define MADV_DONTNEED_LOCKED 24 /* Like MADV_DONTNEED, but drop
locked pages too. */
+# define MADV_COLLAPSE 25 /* Synchronous hugepage collapse. */
# define MADV_HWPOISON 100 /* Poison a page for testing. */
#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/mman.h b/sysdeps/unix/sysv/linux/hppa/bits/mman.h
index acaa1cc..1d895a5 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/mman.h
@@ -79,4 +79,6 @@
# define MADV_WIPEONFORK 71 /* Zero memory on fork, child only. */
# undef MADV_KEEPONFORK
# define MADV_KEEPONFORK 72 /* Undo MADV_WIPEONFORK. */
+# undef MADV_COLLAPSE
+# define MADV_COLLAPSE 73 /* Synchronous hugepage collapse. */
#endif