Merge branch 'work.ipc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull ipc compat cleanup and 64-bit time_t from Al Viro:
 "IPC copyin/copyout sanitizing, including 64bit time_t work from Deepa
  Dinamani"

* 'work.ipc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  utimes: Make utimes y2038 safe
  ipc: shm: Make shmid_kernel timestamps y2038 safe
  ipc: sem: Make sem_array timestamps y2038 safe
  ipc: msg: Make msg_queue timestamps y2038 safe
  ipc: mqueue: Replace timespec with timespec64
  ipc: Make sys_semtimedop() y2038 safe
  get rid of SYSVIPC_COMPAT on ia64
  semtimedop(): move compat to native
  shmat(2): move compat to native
  msgrcv(2), msgsnd(2): move compat to native
  ipc(2): move compat to native
  ipc: make use of compat ipc_perm helpers
  semctl(): move compat to native
  semctl(): separate all layout-dependent copyin/copyout
  msgctl(): move compat to native
  msgctl(): split the actual work from copyin/copyout
  ipc: move compat shmctl to native
  shmctl: split the work from copyin/copyout

1 files changed, 12 insertions, 11 deletions

diff --git a/fs/utimes.c b/fs/utimes.c
index 6571d8c848a0..51edb9f9507c 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -22,7 +22,7 @@
  */
 SYSCALL_DEFINE2(utime, char __user *, filename, struct utimbuf __user *, times)
 {
-	struct timespec tv[2];
+	struct timespec64 tv[2];
 
 	if (times) {
 		if (get_user(tv[0].tv_sec, &times->actime) ||
@@ -44,7 +44,7 @@ static bool nsec_valid(long nsec)
 	return nsec >= 0 && nsec <= 999999999;
 }
 
-static int utimes_common(const struct path *path, struct timespec *times)
+static int utimes_common(const struct path *path, struct timespec64 *times)
 {
 	int error;
 	struct iattr newattrs;
@@ -115,7 +115,7 @@ out:
  * must be owner or have write permission.
  * Else, update from *times, must be owner or super user.
  */
-long do_utimes(int dfd, const char __user *filename, struct timespec *times,
+long do_utimes(int dfd, const char __user *filename, struct timespec64 *times,
 	       int flags)
 {
 	int error = -EINVAL;
@@ -167,10 +167,11 @@ out:
 SYSCALL_DEFINE4(utimensat, int, dfd, const char __user *, filename,
 		struct timespec __user *, utimes, int, flags)
 {
-	struct timespec tstimes[2];
+	struct timespec64 tstimes[2];
 
 	if (utimes) {
-		if (copy_from_user(&tstimes, utimes, sizeof(tstimes)))
+		if ((get_timespec64(&tstimes[0], &utimes[0]) ||
+			get_timespec64(&tstimes[1], &utimes[1])))
 			return -EFAULT;
 
 		/* Nothing to do, we must not even check the path.  */
@@ -186,7 +187,7 @@ SYSCALL_DEFINE3(futimesat, int, dfd, const char __user *, filename,
 		struct timeval __user *, utimes)
 {
 	struct timeval times[2];
-	struct timespec tstimes[2];
+	struct timespec64 tstimes[2];
 
 	if (utimes) {
 		if (copy_from_user(&times, utimes, sizeof(times)))
@@ -224,7 +225,7 @@ SYSCALL_DEFINE2(utimes, char __user *, filename,
 COMPAT_SYSCALL_DEFINE2(utime, const char __user *, filename,
 		       struct compat_utimbuf __user *, t)
 {
-	struct timespec tv[2];
+	struct timespec64 tv[2];
 
 	if (t) {
 		if (get_user(tv[0].tv_sec, &t->actime) ||
@@ -238,11 +239,11 @@ COMPAT_SYSCALL_DEFINE2(utime, const char __user *, filename,
 
 COMPAT_SYSCALL_DEFINE4(utimensat, unsigned int, dfd, const char __user *, filename, struct compat_timespec __user *, t, int, flags)
 {
-	struct timespec tv[2];
+	struct timespec64 tv[2];
 
 	if  (t) {
-		if (compat_get_timespec(&tv[0], &t[0]) ||
-		    compat_get_timespec(&tv[1], &t[1]))
+		if (compat_get_timespec64(&tv[0], &t[0]) ||
+		    compat_get_timespec64(&tv[1], &t[1]))
 			return -EFAULT;
 
 		if (tv[0].tv_nsec == UTIME_OMIT && tv[1].tv_nsec == UTIME_OMIT)
@@ -253,7 +254,7 @@ COMPAT_SYSCALL_DEFINE4(utimensat, unsigned int, dfd, const char __user *, filena
 
 COMPAT_SYSCALL_DEFINE3(futimesat, unsigned int, dfd, const char __user *, filename, struct compat_timeval __user *, t)
 {
-	struct timespec tv[2];
+	struct timespec64 tv[2];
 
 	if (t) {
 		if (get_user(tv[0].tv_sec, &t[0].tv_sec) ||