path: root/arch/x86_64/bits
diff options
authorSzabolcs Nagy <>2015-11-18 23:31:37 +0000
committerRich Felker <>2016-01-26 18:28:20 -0500
commit09001a8f97ac779573976b5838e3d293f1713c5c (patch)
tree1a45ec88633aa3bd7fd45ee1d42802445930cc56 /arch/x86_64/bits
parent37bfb68f688772e7ce339ab72b9ddcf86ac1e8a8 (diff)
add new membarrier, userfaultfd and switch_endian syscalls
new in linux v4.3 added for aarch64, arm, i386, mips, or1k, powerpc, x32 and x86_64. membarrier is a system wide memory barrier, moves most of the synchronization cost to one side, new in kernel commit 5b25b13ab08f616efd566347d809b4ece54570d1 userfaultfd is useful for qemu and is new in kernel commit 8d2afd96c20316d112e04d935d9e09150e988397 switch_endian is powerpc only for switching endianness, new in commit 529d235a0e190ded1d21ccc80a73e625ebcad09b
Diffstat (limited to 'arch/x86_64/bits')
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86_64/bits/syscall.h b/arch/x86_64/bits/syscall.h
index 96ec51fa..0ff50268 100644
--- a/arch/x86_64/bits/syscall.h
+++ b/arch/x86_64/bits/syscall.h
@@ -321,6 +321,8 @@
#define __NR_kexec_file_load 320
#define __NR_bpf 321
#define __NR_execveat 322
+#define __NR_userfaultfd 323
+#define __NR_membarrier 324
@@ -649,3 +651,5 @@
#define SYS_kexec_file_load 320
#define SYS_bpf 321
#define SYS_execveat 322
+#define SYS_userfaultfd 323
+#define SYS_membarrier 324