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authorJoseph Myers <joseph@codesourcery.com>2022-12-22 15:12:52 +0000
committerJoseph Myers <joseph@codesourcery.com>2022-12-22 15:12:52 +0000
commit81a94a2ae34bac9c3d907bbe0468ba56914accb0 (patch)
tree9703ad2f1dcd68ada89d8675e9915bb000492dd4 /sysdeps
parente2b68828fab4fdfa5595fa89180230cdc4373ec1 (diff)
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Define MADV_COLLAPSE from Linux 6.1
Add the MADV_COLLAPSE constant from Linux 6.1 to bits/mman-linux.h and the hppa bits/mman.h. Tested for x86_64.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/bits/mman-linux.h1
-rw-r--r--sysdeps/unix/sysv/linux/hppa/bits/mman.h2
2 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h b/sysdeps/unix/sysv/linux/bits/mman-linux.h
index 1fb7f88..c3818ce 100644
--- a/sysdeps/unix/sysv/linux/bits/mman-linux.h
+++ b/sysdeps/unix/sysv/linux/bits/mman-linux.h
@@ -91,6 +91,7 @@
writable. */
# define MADV_DONTNEED_LOCKED 24 /* Like MADV_DONTNEED, but drop
locked pages too. */
+# define MADV_COLLAPSE 25 /* Synchronous hugepage collapse. */
# define MADV_HWPOISON 100 /* Poison a page for testing. */
#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/mman.h b/sysdeps/unix/sysv/linux/hppa/bits/mman.h
index acaa1cc..1d895a5 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/mman.h
@@ -79,4 +79,6 @@
# define MADV_WIPEONFORK 71 /* Zero memory on fork, child only. */
# undef MADV_KEEPONFORK
# define MADV_KEEPONFORK 72 /* Undo MADV_WIPEONFORK. */
+# undef MADV_COLLAPSE
+# define MADV_COLLAPSE 73 /* Synchronous hugepage collapse. */
#endif