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-rw-r--r--fs/compat.c49
1 files changed, 0 insertions, 49 deletions
diff --git a/fs/compat.c b/fs/compat.c
index 69baca5ad608..ee80ff341d37 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -2083,51 +2083,6 @@ long asmlinkage compat_sys_nfsservctl(int cmd, void *notused, void *notused2)
2083 2083
2084#ifdef CONFIG_EPOLL 2084#ifdef CONFIG_EPOLL
2085 2085
2086#ifdef CONFIG_HAS_COMPAT_EPOLL_EVENT
2087asmlinkage long compat_sys_epoll_ctl(int epfd, int op, int fd,
2088 struct compat_epoll_event __user *event)
2089{
2090 long err = 0;
2091 struct compat_epoll_event user;
2092 struct epoll_event __user *kernel = NULL;
2093
2094 if (event) {
2095 if (copy_from_user(&user, event, sizeof(user)))
2096 return -EFAULT;
2097 kernel = compat_alloc_user_space(sizeof(struct epoll_event));
2098 err |= __put_user(user.events, &kernel->events);
2099 err |= __put_user(user.data, &kernel->data);
2100 }
2101
2102 return err ? err : sys_epoll_ctl(epfd, op, fd, kernel);
2103}
2104
2105
2106asmlinkage long compat_sys_epoll_wait(int epfd,
2107 struct compat_epoll_event __user *events,
2108 int maxevents, int timeout)
2109{
2110 long i, ret, err = 0;
2111 struct epoll_event __user *kbuf;
2112 struct epoll_event ev;
2113
2114 if ((maxevents <= 0) ||
2115 (maxevents > (INT_MAX / sizeof(struct epoll_event))))
2116 return -EINVAL;
2117 kbuf = compat_alloc_user_space(sizeof(struct epoll_event) * maxevents);
2118 ret = sys_epoll_wait(epfd, kbuf, maxevents, timeout);
2119 for (i = 0; i < ret; i++) {
2120 err |= __get_user(ev.events, &kbuf[i].events);
2121 err |= __get_user(ev.data, &kbuf[i].data);
2122 err |= __put_user(ev.events, &events->events);
2123 err |= __put_user_unaligned(ev.data, &events->data);
2124 events++;
2125 }
2126
2127 return err ? -EFAULT: ret;
2128}
2129#endif /* CONFIG_HAS_COMPAT_EPOLL_EVENT */
2130
2131#ifdef TIF_RESTORE_SIGMASK 2086#ifdef TIF_RESTORE_SIGMASK
2132asmlinkage long compat_sys_epoll_pwait(int epfd, 2087asmlinkage long compat_sys_epoll_pwait(int epfd,
2133 struct compat_epoll_event __user *events, 2088 struct compat_epoll_event __user *events,
@@ -2153,11 +2108,7 @@ asmlinkage long compat_sys_epoll_pwait(int epfd,
2153 sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved); 2108 sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved);
2154 } 2109 }
2155 2110
2156#ifdef CONFIG_HAS_COMPAT_EPOLL_EVENT
2157 err = compat_sys_epoll_wait(epfd, events, maxevents, timeout);
2158#else
2159 err = sys_epoll_wait(epfd, events, maxevents, timeout); 2111 err = sys_epoll_wait(epfd, events, maxevents, timeout);
2160#endif
2161 2112
2162 /* 2113 /*
2163 * If we changed the signal mask, we need to restore the original one. 2114 * If we changed the signal mask, we need to restore the original one.