diff options
| -rw-r--r-- | arch/s390/kernel/compat_wrapper.S | 13 | ||||
| -rw-r--r-- | arch/s390/kernel/syscalls.S | 4 | ||||
| -rw-r--r-- | fs/compat.c | 30 | ||||
| -rw-r--r-- | fs/signalfd.c | 31 |
4 files changed, 33 insertions, 45 deletions
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 3c98c4dc5aca..626cc6f0f446 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1299,12 +1299,6 @@ ENTRY(compat_sys_utimensat_wrapper) lgfr %r5,%r5 # int jg compat_sys_utimensat -ENTRY(compat_sys_signalfd_wrapper) - lgfr %r2,%r2 # int - llgtr %r3,%r3 # compat_sigset_t * - llgfr %r4,%r4 # compat_size_t - jg compat_sys_signalfd - ENTRY(sys_eventfd_wrapper) llgfr %r2,%r2 # unsigned int jg sys_eventfd @@ -1323,13 +1317,6 @@ ENTRY(sys_timerfd_create_wrapper) lgfr %r3,%r3 # int jg sys_timerfd_create -ENTRY(compat_sys_signalfd4_wrapper) - lgfr %r2,%r2 # int - llgtr %r3,%r3 # compat_sigset_t * - llgfr %r4,%r4 # compat_size_t - lgfr %r5,%r5 # int - jg compat_sys_signalfd4 - ENTRY(sys_eventfd2_wrapper) llgfr %r2,%r2 # unsigned int lgfr %r3,%r3 # int diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 630b935d1284..2695bb89699e 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -324,13 +324,13 @@ SYSCALL(sys_epoll_pwait,sys_epoll_pwait,compat_sys_epoll_pwait_wrapper) SYSCALL(sys_utimes,sys_utimes,compat_sys_utimes_wrapper) SYSCALL(sys_s390_fallocate,sys_fallocate,sys_fallocate_wrapper) SYSCALL(sys_utimensat,sys_utimensat,compat_sys_utimensat_wrapper) /* 315 */ -SYSCALL(sys_signalfd,sys_signalfd,compat_sys_signalfd_wrapper) +SYSCALL(sys_signalfd,sys_signalfd,compat_sys_signalfd) NI_SYSCALL /* 317 old sys_timer_fd */ SYSCALL(sys_eventfd,sys_eventfd,sys_eventfd_wrapper) SYSCALL(sys_timerfd_create,sys_timerfd_create,sys_timerfd_create_wrapper) SYSCALL(sys_timerfd_settime,sys_timerfd_settime,compat_sys_timerfd_settime) /* 320 */ SYSCALL(sys_timerfd_gettime,sys_timerfd_gettime,compat_sys_timerfd_gettime) -SYSCALL(sys_signalfd4,sys_signalfd4,compat_sys_signalfd4_wrapper) +SYSCALL(sys_signalfd4,sys_signalfd4,compat_sys_signalfd4) SYSCALL(sys_eventfd2,sys_eventfd2,sys_eventfd2_wrapper) SYSCALL(sys_inotify_init1,sys_inotify_init1,sys_inotify_init1_wrapper) SYSCALL(sys_pipe2,sys_pipe2,sys_pipe2_wrapper) /* 325 */ diff --git a/fs/compat.c b/fs/compat.c index fe40fde29111..cc09312f9aed 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -1707,36 +1707,6 @@ asmlinkage long compat_sys_epoll_pwait(int epfd, #endif /* CONFIG_EPOLL */ -#ifdef CONFIG_SIGNALFD - -asmlinkage long compat_sys_signalfd4(int ufd, - const compat_sigset_t __user *sigmask, - compat_size_t sigsetsize, int flags) -{ - compat_sigset_t ss32; - sigset_t tmp; - sigset_t __user *ksigmask; - - if (sigsetsize != sizeof(compat_sigset_t)) - return -EINVAL; - if (copy_from_user(&ss32, sigmask, sizeof(ss32))) - return -EFAULT; - sigset_from_compat(&tmp, &ss32); - ksigmask = compat_alloc_user_space(sizeof(sigset_t)); - if (copy_to_user(ksigmask, &tmp, sizeof(sigset_t))) - return -EFAULT; - - return sys_signalfd4(ufd, ksigmask, sizeof(sigset_t), flags); -} - -asmlinkage long compat_sys_signalfd(int ufd, - const compat_sigset_t __user *sigmask, - compat_size_t sigsetsize) -{ - return compat_sys_signalfd4(ufd, sigmask, sigsetsize, 0); -} -#endif /* CONFIG_SIGNALFD */ - #ifdef CONFIG_FHANDLE /* * Exactly like fs/open.c:sys_open_by_handle_at(), except that it diff --git a/fs/signalfd.c b/fs/signalfd.c index b53486961735..424b7b65321f 100644 --- a/fs/signalfd.c +++ b/fs/signalfd.c @@ -30,6 +30,7 @@ #include <linux/signalfd.h> #include <linux/syscalls.h> #include <linux/proc_fs.h> +#include <linux/compat.h> void signalfd_cleanup(struct sighand_struct *sighand) { @@ -311,3 +312,33 @@ SYSCALL_DEFINE3(signalfd, int, ufd, sigset_t __user *, user_mask, { return sys_signalfd4(ufd, user_mask, sizemask, 0); } + +#ifdef CONFIG_COMPAT +COMPAT_SYSCALL_DEFINE4(signalfd4, int, ufd, + const compat_sigset_t __user *,sigmask, + compat_size_t, sigsetsize, + int, flags) +{ + compat_sigset_t ss32; + sigset_t tmp; + sigset_t __user *ksigmask; + + if (sigsetsize != sizeof(compat_sigset_t)) + return -EINVAL; + if (copy_from_user(&ss32, sigmask, sizeof(ss32))) + return -EFAULT; + sigset_from_compat(&tmp, &ss32); + ksigmask = compat_alloc_user_space(sizeof(sigset_t)); + if (copy_to_user(ksigmask, &tmp, sizeof(sigset_t))) + return -EFAULT; + + return sys_signalfd4(ufd, ksigmask, sizeof(sigset_t), flags); +} + +COMPAT_SYSCALL_DEFINE3(signalfd, int, ufd, + const compat_sigset_t __user *,sigmask, + compat_size_t, sigsetsize) +{ + return compat_sys_signalfd4(ufd, sigmask, sigsetsize, 0); +} +#endif |