glibc/glibc-upstream-2.34-20.patch
2021-09-15 18:38:33 +02:00

30 lines
1.2 KiB
Diff

commit 4ed990e5b97a61f29f929bdeb36c5b2abb547a64
Author: Joseph Myers <joseph@codesourcery.com>
Date: Tue Sep 14 14:19:24 2021 +0000
Add MADV_POPULATE_READ and MADV_POPULATE_WRITE from Linux 5.14 to bits/mman-linux.h
Linux 5.14 adds constants MADV_POPULATE_READ and MADV_POPULATE_WRITE
(with the same values on all architectures). Add these to glibc's
bits/mman-linux.h.
Tested for x86_64.
(cherry picked from commit 3561106278cddd2f007bd27fd4c3e90caaf14b43)
diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h b/sysdeps/unix/sysv/linux/bits/mman-linux.h
index 3b1ae418e073c122..31451c28d93f9f72 100644
--- a/sysdeps/unix/sysv/linux/bits/mman-linux.h
+++ b/sysdeps/unix/sysv/linux/bits/mman-linux.h
@@ -89,6 +89,10 @@
# define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK. */
# define MADV_COLD 20 /* Deactivate these pages. */
# define MADV_PAGEOUT 21 /* Reclaim these pages. */
+# define MADV_POPULATE_READ 22 /* Populate (prefault) page tables
+ readable. */
+# define MADV_POPULATE_WRITE 23 /* Populate (prefault) page tables
+ writable. */
# define MADV_HWPOISON 100 /* Poison a page for testing. */
#endif