| Message ID | alpine.DEB.2.21.1911272345240.14409@digraph.polyomino.org.uk |
|---|---|
| State | New |
| Headers | show |
| Series | Define MADV_COLD and MADV_PAGEOUT from Linux 5.4 | expand |
* Joseph Myers: > Linux 5.4 adds constants MADV_COLD and MADV_PAGEOUT (defined with the > same values on all architectures). This patch adds them to > bits/mman-linux.h. > > Tested for x86_64. > > diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h > b/sysdeps/unix/sysv/linux/bits/mman-linux.h > index d6755c59d5..c0b11bfe24 100644 > --- a/sysdeps/unix/sysv/linux/bits/mman-linux.h > +++ b/sysdeps/unix/sysv/linux/bits/mman-linux.h > @@ -87,6 +87,8 @@ > # define MADV_DODUMP 17 /* Clear the MADV_DONTDUMP flag. */ > # define MADV_WIPEONFORK 18 /* Zero memory on fork, child only. */ > # define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK. */ > +# define MADV_COLD 20 /* Deactivate these pages. */ > +# define MADV_PAGEOUT 21 /* Reclaim these pages. */ > # define MADV_HWPOISON 100 /* Poison a page for testing. */ > #endif I've verified that this matches what's in the UAPI headers. Looks good.
diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h b/sysdeps/unix/sysv/linux/bits/mman-linux.h index d6755c59d5..c0b11bfe24 100644 --- a/sysdeps/unix/sysv/linux/bits/mman-linux.h +++ b/sysdeps/unix/sysv/linux/bits/mman-linux.h @@ -87,6 +87,8 @@ # define MADV_DODUMP 17 /* Clear the MADV_DONTDUMP flag. */ # define MADV_WIPEONFORK 18 /* Zero memory on fork, child only. */ # define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK. */ +# define MADV_COLD 20 /* Deactivate these pages. */ +# define MADV_PAGEOUT 21 /* Reclaim these pages. */ # define MADV_HWPOISON 100 /* Poison a page for testing. */ #endif