From: Davide Libenzi <davidel@xmailserver.org>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: [patch 9/13] signal/timer/event fds v6 - timerfd compat code ...
Date: Thu, 15 Mar 2007 17:22:15 -0700 [thread overview]
Message-ID: <send-serie.davidel@xmailserver.org.9367.1174004540.9> (raw)
This patch implement the necessary compat code for the timerfd system call.
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
- Davide
Index: linux-2.6.21-rc3.quilt/fs/compat.c
===================================================================
--- linux-2.6.21-rc3.quilt.orig/fs/compat.c 2007-03-15 15:53:11.000000000 -0700
+++ linux-2.6.21-rc3.quilt/fs/compat.c 2007-03-15 16:11:52.000000000 -0700
@@ -2257,3 +2257,23 @@
return sys_signalfd(ufd, ksigmask, sizeof(sigset_t));
}
+
+asmlinkage long compat_sys_timerfd(int ufd, int clockid, int flags,
+ const struct compat_itimerspec __user *utmr)
+{
+ long res;
+ struct itimerspec t;
+ struct itimerspec __user *ut;
+
+ res = -EFAULT;
+ if (get_compat_itimerspec(&t, utmr))
+ goto err_exit;
+ ut = compat_alloc_user_space(sizeof(*ut));
+ if (copy_to_user(ut, &t, sizeof(t)) )
+ goto err_exit;
+
+ res = sys_timerfd(ufd, clockid, flags, ut);
+err_exit:
+ return res;
+}
+
Index: linux-2.6.21-rc3.quilt/include/linux/compat.h
===================================================================
--- linux-2.6.21-rc3.quilt.orig/include/linux/compat.h 2007-03-15 15:53:11.000000000 -0700
+++ linux-2.6.21-rc3.quilt/include/linux/compat.h 2007-03-15 16:11:52.000000000 -0700
@@ -225,6 +225,11 @@
return lhs->tv_nsec - rhs->tv_nsec;
}
+extern int get_compat_itimerspec(struct itimerspec *dst,
+ const struct compat_itimerspec __user *src);
+extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
+ const struct itimerspec *src);
+
asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
extern int compat_printk(const char *fmt, ...);
Index: linux-2.6.21-rc3.quilt/kernel/compat.c
===================================================================
--- linux-2.6.21-rc3.quilt.orig/kernel/compat.c 2007-03-15 15:53:11.000000000 -0700
+++ linux-2.6.21-rc3.quilt/kernel/compat.c 2007-03-15 16:11:52.000000000 -0700
@@ -475,8 +475,8 @@
return min_length;
}
-static int get_compat_itimerspec(struct itimerspec *dst,
- struct compat_itimerspec __user *src)
+int get_compat_itimerspec(struct itimerspec *dst,
+ const struct compat_itimerspec __user *src)
{
if (get_compat_timespec(&dst->it_interval, &src->it_interval) ||
get_compat_timespec(&dst->it_value, &src->it_value))
@@ -484,8 +484,8 @@
return 0;
}
-static int put_compat_itimerspec(struct compat_itimerspec __user *dst,
- struct itimerspec *src)
+int put_compat_itimerspec(struct compat_itimerspec __user *dst,
+ const struct itimerspec *src)
{
if (put_compat_timespec(&src->it_interval, &dst->it_interval) ||
put_compat_timespec(&src->it_value, &dst->it_value))
reply other threads:[~2007-03-16 0:27 UTC|newest]
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