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[Qemu-devel] [PATCH 19/23] userfaultfd: activate syscall
From: |
Andrea Arcangeli |
Subject: |
[Qemu-devel] [PATCH 19/23] userfaultfd: activate syscall |
Date: |
Thu, 14 May 2015 19:31:16 +0200 |
This activates the userfaultfd syscall.
Signed-off-by: Andrea Arcangeli <address@hidden>
---
arch/powerpc/include/asm/systbl.h | 1 +
arch/powerpc/include/uapi/asm/unistd.h | 1 +
arch/x86/syscalls/syscall_32.tbl | 1 +
arch/x86/syscalls/syscall_64.tbl | 1 +
include/linux/syscalls.h | 1 +
kernel/sys_ni.c | 1 +
6 files changed, 6 insertions(+)
diff --git a/arch/powerpc/include/asm/systbl.h
b/arch/powerpc/include/asm/systbl.h
index f1863a1..4741b15 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -368,3 +368,4 @@ SYSCALL_SPU(memfd_create)
SYSCALL_SPU(bpf)
COMPAT_SYS(execveat)
PPC64ONLY(switch_endian)
+SYSCALL_SPU(userfaultfd)
diff --git a/arch/powerpc/include/uapi/asm/unistd.h
b/arch/powerpc/include/uapi/asm/unistd.h
index e4aa173..6ad58d4 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -386,5 +386,6 @@
#define __NR_bpf 361
#define __NR_execveat 362
#define __NR_switch_endian 363
+#define __NR_userfaultfd 364
#endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl
index ef8187f..dcc18ea 100644
--- a/arch/x86/syscalls/syscall_32.tbl
+++ b/arch/x86/syscalls/syscall_32.tbl
@@ -365,3 +365,4 @@
356 i386 memfd_create sys_memfd_create
357 i386 bpf sys_bpf
358 i386 execveat sys_execveat
stub32_execveat
+359 i386 userfaultfd sys_userfaultfd
diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl
index 9ef32d5..81c4906 100644
--- a/arch/x86/syscalls/syscall_64.tbl
+++ b/arch/x86/syscalls/syscall_64.tbl
@@ -329,6 +329,7 @@
320 common kexec_file_load sys_kexec_file_load
321 common bpf sys_bpf
322 64 execveat stub_execveat
+323 common userfaultfd sys_userfaultfd
#
# x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index bb51bec..8ee1d0c 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -810,6 +810,7 @@ asmlinkage long sys_timerfd_gettime(int ufd, struct
itimerspec __user *otmr);
asmlinkage long sys_eventfd(unsigned int count);
asmlinkage long sys_eventfd2(unsigned int count, int flags);
asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int
flags);
+asmlinkage long sys_userfaultfd(int flags);
asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user
*, unsigned int);
asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 7995ef5..8b3e10ea 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -218,6 +218,7 @@ cond_syscall(compat_sys_timerfd_gettime);
cond_syscall(sys_eventfd);
cond_syscall(sys_eventfd2);
cond_syscall(sys_memfd_create);
+cond_syscall(sys_userfaultfd);
/* performance counters: */
cond_syscall(sys_perf_event_open);
- [Qemu-devel] [PATCH 00/23] userfaultfd v4, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 15/23] userfaultfd: optimize read() and poll() to be O(1), Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 05/23] userfaultfd: add vm_userfaultfd_ctx to the vm_area_struct, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 18/23] userfaultfd: buildsystem activation, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 20/23] userfaultfd: UFFDIO_COPY|UFFDIO_ZEROPAGE uAPI, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 19/23] userfaultfd: activate syscall,
Andrea Arcangeli <=
- [Qemu-devel] [PATCH 21/23] userfaultfd: mcopy_atomic|mfill_zeropage: UFFDIO_COPY|UFFDIO_ZEROPAGE preparation, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 03/23] userfaultfd: uAPI, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 17/23] userfaultfd: solve the race between UFFDIO_COPY|ZEROPAGE and read, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 06/23] userfaultfd: add VM_UFFD_MISSING and VM_UFFD_WP, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 04/23] userfaultfd: linux/userfaultfd_k.h, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 12/23] userfaultfd: Rename uffd_api.bits into .features fixup, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 11/23] userfaultfd: Rename uffd_api.bits into .features, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 09/23] userfaultfd: prevent khugepaged to merge if userfaultfd is armed, Andrea Arcangeli, 2015/05/14
- [Qemu-devel] [PATCH 22/23] userfaultfd: avoid mmap_sem read recursion in mcopy_atomic, Andrea Arcangeli, 2015/05/14