git: 34670aeab4f5 - stable/13 - linux(4): add struct timespec64 definition and conversion routine for future use.

The branch stable/13 has been updated by dchagin:

URL: https://cgit.FreeBSD.org/src/commit/?id=34670aeab4f5a4a1b2d0b7c3a759c0caf9e6e0b2

commit 34670aeab4f5a4a1b2d0b7c3a759c0caf9e6e0b2
Author:     Dmitry Chagin <dchagin@FreeBSD.org>
AuthorDate: 2021-06-07 01:47:12 +0000
Commit:     Dmitry Chagin <dchagin@FreeBSD.org>
CommitDate: 2022-06-17 19:27:55 +0000

    linux(4): add struct timespec64 definition and conversion routine for
    future use.
    
    MFC after:              2 weeks
    
    (cherry picked from commit bfcce1a9f6e3c9defde10bb1f83d4ba9752c23f6)
---
 sys/amd64/linux32/linux.h      |  7 +++++++
 sys/compat/linux/linux_time.c  | 24 ++++++++++++++++++++++++
 sys/compat/linux/linux_timer.h |  6 ++++++
 sys/i386/linux/linux.h         |  7 +++++++
 4 files changed, 44 insertions(+)

diff --git a/sys/amd64/linux32/linux.h b/sys/amd64/linux32/linux.h
index 6f26974a75a1..50a4efed1709 100644
--- a/sys/amd64/linux32/linux.h
+++ b/sys/amd64/linux32/linux.h
@@ -81,6 +81,7 @@ typedef l_int		l_pid_t;
 typedef l_uint		l_size_t;
 typedef l_long		l_suseconds_t;
 typedef l_long		l_time_t;
+typedef l_longlong	l_time64_t;
 typedef l_uint		l_uid_t;
 typedef l_ushort	l_uid16_t;
 typedef l_int		l_timer_t;
@@ -171,6 +172,12 @@ struct l_timespec {
 	l_long		tv_nsec;
 };
 
+/* __kernel_timespec */
+struct l_timespec64 {
+	l_time64_t	tv_sec;
+	l_longlong	tv_nsec;
+};
+
 struct l_newstat {
 	l_ushort	st_dev;
 	l_ushort	__pad1;
diff --git a/sys/compat/linux/linux_time.c b/sys/compat/linux/linux_time.c
index 1d7dcc869159..2f1430faf702 100644
--- a/sys/compat/linux/linux_time.c
+++ b/sys/compat/linux/linux_time.c
@@ -124,6 +124,30 @@ linux_to_native_timespec(struct timespec *ntp, struct l_timespec *ltp)
 	return (0);
 }
 
+#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
+int
+native_to_linux_timespec64(struct l_timespec64 *ltp64, struct timespec *ntp)
+{
+
+	ltp64->tv_sec = ntp->tv_sec;
+	ltp64->tv_nsec = ntp->tv_nsec;
+
+	return (0);
+}
+
+int
+linux_to_native_timespec64(struct timespec *ntp, struct l_timespec64 *ltp64)
+{
+
+	if (ltp64->tv_sec < 0 || ltp64->tv_nsec < 0 || ltp64->tv_nsec > 999999999)
+		return (EINVAL);
+	ntp->tv_sec = ltp64->tv_sec;
+	ntp->tv_nsec = ltp64->tv_nsec;
+
+	return (0);
+}
+#endif
+
 int
 native_to_linux_itimerspec(struct l_itimerspec *ltp, struct itimerspec *ntp)
 {
diff --git a/sys/compat/linux/linux_timer.h b/sys/compat/linux/linux_timer.h
index 5344191742bb..6b5cf346049e 100644
--- a/sys/compat/linux/linux_timer.h
+++ b/sys/compat/linux/linux_timer.h
@@ -108,6 +108,12 @@ int native_to_linux_timespec(struct l_timespec *,
 				     struct timespec *);
 int linux_to_native_timespec(struct timespec *,
 				     struct l_timespec *);
+#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
+int native_to_linux_timespec64(struct l_timespec64 *,
+				     struct timespec *);
+int linux_to_native_timespec64(struct timespec *,
+				     struct l_timespec64 *);
+#endif
 int linux_to_native_clockid(clockid_t *, clockid_t);
 int native_to_linux_itimerspec(struct l_itimerspec *,
 				     struct itimerspec *);
diff --git a/sys/i386/linux/linux.h b/sys/i386/linux/linux.h
index 7a8de667e176..1bb76d8e41d0 100644
--- a/sys/i386/linux/linux.h
+++ b/sys/i386/linux/linux.h
@@ -71,6 +71,7 @@ typedef l_int		l_pid_t;
 typedef l_uint		l_size_t;
 typedef l_long		l_suseconds_t;
 typedef l_long		l_time_t;
+typedef l_longlong	l_time64_t;
 typedef l_uint		l_uid_t;
 typedef l_ushort	l_uid16_t;
 typedef l_int		l_timer_t;
@@ -142,6 +143,12 @@ struct l_timespec {
 	l_long		tv_nsec;
 };
 
+/* __kernel_timespec */
+struct l_timespec64 {
+	l_time64_t	tv_sec;
+	l_longlong	tv_nsec;
+};
+
 struct l_newstat {
 	l_ushort	st_dev;
 	l_ushort	__pad1;