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authorJoseph Myers <joseph@codesourcery.com>2021-09-14 14:19:24 +0000
committerJoseph Myers <joseph@codesourcery.com>2021-09-14 14:19:24 +0000
commit3561106278cddd2f007bd27fd4c3e90caaf14b43 (patch)
treef1d1fbae172491746824da02b991d9f7050c5399 /sysdeps/unix/sysv/linux/bits
parent4b39e3498324d1aea802fea8d4b8764f5ddb4fd1 (diff)
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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.
Diffstat (limited to 'sysdeps/unix/sysv/linux/bits')
-rw-r--r--sysdeps/unix/sysv/linux/bits/mman-linux.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h b/sysdeps/unix/sysv/linux/bits/mman-linux.h
index 3b1ae41..31451c2 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