Add MADV_POPULATE_READ and MADV_POPULATE_WRITE from Linux 5.14 to bits/mman-linux.h
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dj/TryBot-apply_patch |
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Patch applied to master at the time it was sent
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dj/TryBot-32bit |
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Build for i686
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Commit Message
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.
Comments
Joseph Myers <joseph@codesourcery.com> writes:
> +# define MADV_POPULATE_READ 22 /* Populate (prefault) page tables
> + readable. */
> +# define MADV_POPULATE_WRITE 23 /* Populate (prefault) page tables
> + writable. */
Confirmed that these are the correct values across all arch's in the
linux source tree.
Reviewed-by: DJ Delorie <dj@redhat.com>
@@ -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