[PATCH] autofs4: remove update_atime unused function

[linux-2.6-omap-h63xx.git] / kernel / compat.c

diff --git a/kernel/compat.c b/kernel/compat.c
index 1867290c37e3c164c916e0471c64c0c6e5528a97..b9bdd1271f4497f07c587f9f1d6fa78f5c76292e 100644 (file)
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -21,9 +21,9 @@
 #include <linux/syscalls.h>
 #include <linux/unistd.h>
 #include <linux/security.h>
+#include <linux/timex.h>
 
 #include <asm/uaccess.h>
-#include <asm/bug.h>
 
 int get_compat_timespec(struct timespec *ts, const struct compat_timespec __user *cts)
 {
@@ -899,3 +899,61 @@ asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset, compat
        return -ERESTARTNOHAND;
 }
 #endif /* __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND */
+
+asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp)
+{
+       struct timex txc;
+       int ret;
+
+       memset(&txc, 0, sizeof(struct timex));
+
+       if (!access_ok(VERIFY_READ, utp, sizeof(struct compat_timex)) ||
+                       __get_user(txc.modes, &utp->modes) ||
+                       __get_user(txc.offset, &utp->offset) ||
+                       __get_user(txc.freq, &utp->freq) ||
+                       __get_user(txc.maxerror, &utp->maxerror) ||
+                       __get_user(txc.esterror, &utp->esterror) ||
+                       __get_user(txc.status, &utp->status) ||
+                       __get_user(txc.constant, &utp->constant) ||
+                       __get_user(txc.precision, &utp->precision) ||
+                       __get_user(txc.tolerance, &utp->tolerance) ||
+                       __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
+                       __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
+                       __get_user(txc.tick, &utp->tick) ||
+                       __get_user(txc.ppsfreq, &utp->ppsfreq) ||
+                       __get_user(txc.jitter, &utp->jitter) ||
+                       __get_user(txc.shift, &utp->shift) ||
+                       __get_user(txc.stabil, &utp->stabil) ||
+                       __get_user(txc.jitcnt, &utp->jitcnt) ||
+                       __get_user(txc.calcnt, &utp->calcnt) ||
+                       __get_user(txc.errcnt, &utp->errcnt) ||
+                       __get_user(txc.stbcnt, &utp->stbcnt))
+               return -EFAULT;
+
+       ret = do_adjtimex(&txc);
+
+       if (!access_ok(VERIFY_WRITE, utp, sizeof(struct compat_timex)) ||
+                       __put_user(txc.modes, &utp->modes) ||
+                       __put_user(txc.offset, &utp->offset) ||
+                       __put_user(txc.freq, &utp->freq) ||
+                       __put_user(txc.maxerror, &utp->maxerror) ||
+                       __put_user(txc.esterror, &utp->esterror) ||
+                       __put_user(txc.status, &utp->status) ||
+                       __put_user(txc.constant, &utp->constant) ||
+                       __put_user(txc.precision, &utp->precision) ||
+                       __put_user(txc.tolerance, &utp->tolerance) ||
+                       __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
+                       __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
+                       __put_user(txc.tick, &utp->tick) ||
+                       __put_user(txc.ppsfreq, &utp->ppsfreq) ||
+                       __put_user(txc.jitter, &utp->jitter) ||
+                       __put_user(txc.shift, &utp->shift) ||
+                       __put_user(txc.stabil, &utp->stabil) ||
+                       __put_user(txc.jitcnt, &utp->jitcnt) ||
+                       __put_user(txc.calcnt, &utp->calcnt) ||
+                       __put_user(txc.errcnt, &utp->errcnt) ||
+                       __put_user(txc.stbcnt, &utp->stbcnt))
+               ret = -EFAULT;
+
+       return ret;
+}