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

6 files changed, 13 insertions, 28 deletions

diff --git a/include/linux/audit.h b/include/linux/audit.h
index 2150bdccfbab..74d4d4e8e3db 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -351,7 +351,7 @@ extern int __audit_socketcall(int nargs, unsigned long *args);
 extern int __audit_sockaddr(int len, void *addr);
 extern void __audit_fd_pair(int fd1, int fd2);
 extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr);
-extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
+extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout);
 extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
 extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
 extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
@@ -412,7 +412,7 @@ static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
         if (unlikely(!audit_dummy_context()))
                 __audit_mq_open(oflag, mode, attr);
 }
-static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout)
+static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout)
 {
         if (unlikely(!audit_dummy_context()))
                 __audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout);
@@ -549,7 +549,7 @@ static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
 { }
 static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len,
                                      unsigned int msg_prio,
-                                     const struct timespec *abs_timeout)
+                                     const struct timespec64 *abs_timeout)
 { }
 static inline void audit_mq_notify(mqd_t mqdes,
                                    const struct sigevent *notification)
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 3fc433303d7a..a5619de3437d 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -171,15 +171,6 @@ extern int get_compat_itimerspec64(struct itimerspec64 *its,
 extern int put_compat_itimerspec64(const struct itimerspec64 *its,
                         struct compat_itimerspec __user *uits);
 
-/*
- * This function convert a timespec if necessary and returns a *user
- * space* pointer.  If no conversion is necessary, it returns the
- * initial pointer.  NULL is a legitimate argument and will always
- * output NULL.
- */
-extern int compat_convert_timespec(struct timespec __user **,
-                                   const void __user *);
-
 struct compat_iovec {
         compat_uptr_t   iov_base;
         compat_size_t   iov_len;
diff --git a/include/linux/msg.h b/include/linux/msg.h
index a001305f5a79..81263fe3f9dc 100644
--- a/include/linux/msg.h
+++ b/include/linux/msg.h
@@ -2,6 +2,7 @@
 #define _LINUX_MSG_H
 
 #include <linux/list.h>
+#include <linux/time64.h>
 #include <uapi/linux/msg.h>
 
 /* one msg_msg structure for each message */
@@ -17,9 +18,9 @@ struct msg_msg {
 /* one msq_queue structure for each present queue on the system */
 struct msg_queue {
         struct kern_ipc_perm q_perm;
-        time_t q_stime;                 /* last msgsnd time */
-        time_t q_rtime;                 /* last msgrcv time */
-        time_t q_ctime;                 /* last change time */
+        time64_t q_stime;               /* last msgsnd time */
+        time64_t q_rtime;               /* last msgrcv time */
+        time64_t q_ctime;               /* last change time */
         unsigned long q_cbytes;         /* current number of bytes on queue */
         unsigned long q_qnum;           /* number of messages in queue */
         unsigned long q_qbytes;         /* max number of bytes on queue */
@@ -31,12 +32,4 @@ struct msg_queue {
         struct list_head q_senders;
 } __randomize_layout;
 
-/* Helper routines for sys_msgsnd and sys_msgrcv */
-extern long do_msgsnd(int msqid, long mtype, void __user *mtext,
-                        size_t msgsz, int msgflg);
-extern long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp,
-                      int msgflg,
-                      long (*msg_fill)(void __user *, struct msg_msg *,
-                                       size_t));
-
 #endif /* _LINUX_MSG_H */
diff --git a/include/linux/sem.h b/include/linux/sem.h
index de2deb8676bd..0083128318f6 100644
--- a/include/linux/sem.h
+++ b/include/linux/sem.h
@@ -4,6 +4,7 @@
 #include <linux/atomic.h>
 #include <linux/rcupdate.h>
 #include <linux/cache.h>
+#include <linux/time64.h>
 #include <uapi/linux/sem.h>
 
 struct task_struct;
@@ -30,7 +31,7 @@ struct sem {
 /* One sem_array data structure for each set of semaphores in the system. */
 struct sem_array {
         struct kern_ipc_perm    sem_perm;       /* permissions .. see ipc.h */
-        time_t                  sem_ctime;      /* create/last semctl() time */
+        time64_t                sem_ctime;      /* create/last semctl() time */
         struct list_head        pending_alter;  /* pending operations */
                                                 /* that alter the array */
         struct list_head        pending_const;  /* pending complex operations */
diff --git a/include/linux/shm.h b/include/linux/shm.h
index 21a5e6c43385..74a4b3b64352 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -12,9 +12,9 @@ struct shmid_kernel /* private to the kernel */
         struct file             *shm_file;
         unsigned long           shm_nattch;
         unsigned long           shm_segsz;
-        time_t                  shm_atim;
-        time_t                  shm_dtim;
-        time_t                  shm_ctim;
+        time64_t                shm_atim;
+        time64_t                shm_dtim;
+        time64_t                shm_ctim;
         pid_t                   shm_cprid;
         pid_t                   shm_lprid;
         struct user_struct      *mlock_user;
diff --git a/include/linux/time.h b/include/linux/time.h
index 3877136bbdf8..9bc1f945777c 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -178,7 +178,7 @@ extern int do_setitimer(int which, struct itimerval *value,
                         struct itimerval *ovalue);
 extern int do_getitimer(int which, struct itimerval *value);
 
-extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags);
+extern long do_utimes(int dfd, const char __user *filename, struct timespec64 *times, int flags);
 
 /*
  * Similar to the struct tm in userspace <time.h>, but it needs to be here so