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Add MADV_POPULATE_READ and MADV_POPULATE_WRITE from Linux 5.14 to bits/mman-linux.h

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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.
This commit is contained in:
Joseph Myers 2021-09-14 14:19:24 +00:00
parent 4b39e34983
commit 3561106278
1 changed files with 4 additions and 0 deletions
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4
sysdeps/unix/sysv/linux/bits/mman-linux.h
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@ -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