The patch titled
signal/timer/event: timerfd compat code
has been removed from the -mm tree. Its filename was
signal-timer-event-fds-v9-timerfd-compat-code.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: signal/timer/event: timerfd compat code
From: Davide Libenzi <davidel@xxxxxxxxxxxxxxx>
This patch implements the necessary compat code for the timerfd system call.
Signed-off-by: Davide Libenzi <davidel@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/compat.c | 23 +++++++++++++++++++++++
include/linux/compat.h | 5 +++++
kernel/compat.c | 8 ++++----
3 files changed, 32 insertions(+), 4 deletions(-)
diff -puN fs/compat.c~signal-timer-event-fds-v9-timerfd-compat-code fs/compat.c
--- a/fs/compat.c~signal-timer-event-fds-v9-timerfd-compat-code
+++ a/fs/compat.c
@@ -2225,3 +2225,26 @@ asmlinkage long compat_sys_signalfd(int
#endif /* CONFIG_SIGNALFD */
+#ifdef CONFIG_TIMERFD
+
+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;
+}
+
+#endif /* CONFIG_TIMERFD */
+
diff -puN include/linux/compat.h~signal-timer-event-fds-v9-timerfd-compat-code include/linux/compat.h
--- a/include/linux/compat.h~signal-timer-event-fds-v9-timerfd-compat-code
+++ a/include/linux/compat.h
@@ -225,6 +225,11 @@ static inline int compat_timespec_compar
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, ...);
diff -puN kernel/compat.c~signal-timer-event-fds-v9-timerfd-compat-code kernel/compat.c
--- a/kernel/compat.c~signal-timer-event-fds-v9-timerfd-compat-code
+++ a/kernel/compat.c
@@ -475,8 +475,8 @@ asmlinkage long compat_sys_sched_getaffi
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 @@ static int get_compat_itimerspec(struct
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))
_
Patches currently in -mm which might be from davidel@xxxxxxxxxxxxxxx are
origin.patch
compat-signalfd-and-timerfd-are-cond-syscalls.patch
x86_64-use-signalfd-and-timerfd-compat-syscalls.patch
-
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