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Date: Thu, 5 Mar 2015 18:17:55 +0100 From: Andrea Arcangeli <aarcange@...hat.com> To: qemu-devel@...gnu.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org, linux-api@...r.kernel.org, Android Kernel Team <kernel-team@...roid.com> Cc: "Kirill A. Shutemov" <kirill@...temov.name>, Pavel Emelyanov <xemul@...allels.com>, Sanidhya Kashyap <sanidhya.gatech@...il.com>, zhang.zhanghailiang@...wei.com, Linus Torvalds <torvalds@...ux-foundation.org>, Andres Lagar-Cavilla <andreslc@...gle.com>, Dave Hansen <dave@...1.net>, Paolo Bonzini <pbonzini@...hat.com>, Rik van Riel <riel@...hat.com>, Mel Gorman <mgorman@...e.de>, Andy Lutomirski <luto@...capital.net>, Andrew Morton <akpm@...ux-foundation.org>, Sasha Levin <sasha.levin@...cle.com>, Hugh Dickins <hughd@...gle.com>, Peter Feiner <pfeiner@...gle.com>, "Dr. David Alan Gilbert" <dgilbert@...hat.com>, Christopher Covington <cov@...eaurora.org>, Johannes Weiner <hannes@...xchg.org>, Robert Love <rlove@...gle.com>, Dmitry Adamushko <dmitry.adamushko@...il.com>, Neil Brown <neilb@...e.de>, Mike Hommey <mh@...ndium.org>, Taras Glek <tglek@...illa.com>, Jan Kara <jack@...e.cz>, KOSAKI Motohiro <kosaki.motohiro@...il.com>, Michel Lespinasse <walken@...gle.com>, Minchan Kim <minchan@...nel.org>, Keith Packard <keithp@...thp.com>, "Huangpeng (Peter)" <peter.huangpeng@...wei.com>, Anthony Liguori <anthony@...emonkey.ws>, Stefan Hajnoczi <stefanha@...il.com>, Wenchao Xia <wenchaoqemu@...il.com>, Andrew Jones <drjones@...hat.com>, Juan Quintela <quintela@...hat.com> Subject: [PATCH 12/21] userfaultfd: activate syscall This activates the userfaultfd syscall. Signed-off-by: Andrea Arcangeli <aarcange@...hat.com> --- arch/powerpc/include/asm/systbl.h | 1 + arch/powerpc/include/asm/unistd.h | 2 +- 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 + 7 files changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index 91062ee..7f21cfd 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -367,3 +367,4 @@ SYSCALL_SPU(getrandom) SYSCALL_SPU(memfd_create) SYSCALL_SPU(bpf) COMPAT_SYS(execveat) +SYSCALL_SPU(userfaultfd) diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h index 36b79c3..f4f8b66 100644 --- a/arch/powerpc/include/asm/unistd.h +++ b/arch/powerpc/include/asm/unistd.h @@ -12,7 +12,7 @@ #include <uapi/asm/unistd.h> -#define __NR_syscalls 363 +#define __NR_syscalls 364 #define __NR__exit __NR_exit #define NR_syscalls __NR_syscalls diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h index ef5b5b1..4b4f21e 100644 --- a/arch/powerpc/include/uapi/asm/unistd.h +++ b/arch/powerpc/include/uapi/asm/unistd.h @@ -385,5 +385,6 @@ #define __NR_memfd_create 360 #define __NR_bpf 361 #define __NR_execveat 362 +#define __NR_userfaultfd 363 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */ diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl index b3560ec..a20f0b8 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 8d656fb..f320b19 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 76d1e38..adf5901 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 5adcb0a..2a10e42 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -204,6 +204,7 @@ 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); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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