Merge tag 'for-linus-2021-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git...

Pull misc fixes from Christian Brauner:

 - Jann reported sparse complaints because of a missing __user
   annotation in a helper we added way back when we added
   pidfd_send_signal() to avoid compat syscall handling. Fix it.

 - Yanfei replaces a reference in a comment to the _do_fork() helper I
   removed a while ago with a reference to the new kernel_clone()
   replacement

 - Alexander Guril added a simple coding style fix

* tag 'for-linus-2021-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  kthread: remove comments about old _do_fork() helper
  Kernel: fork.c: Fix coding style: Do not use {} around single-line statements
  signal: Add missing __user annotation to copy_siginfo_from_user_any

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 5039af6..cbe3e15 100644 (file)
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -366,7 +366,7 @@ TRACE_EVENT(sched_process_wait,
 );
 
 /*
- * Tracepoint for do_fork:
+ * Tracepoint for kernel_clone:
  */
 TRACE_EVENT(sched_process_fork,
 

diff --git a/kernel/fork.c b/kernel/fork.c
index 37720a6..d66cd10 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -819,9 +819,8 @@ void __init fork_init(void)
        init_task.signal->rlim[RLIMIT_SIGPENDING] =
                init_task.signal->rlim[RLIMIT_NPROC];
 
-       for (i = 0; i < UCOUNT_COUNTS; i++) {
+       for (i = 0; i < UCOUNT_COUNTS; i++)
                init_user_ns.ucount_max[i] = max_threads/2;
-       }
 
 #ifdef CONFIG_VMAP_STACK
        cpuhp_setup_state(CPUHP_BP_PREPARE_DYN, "fork:vm_stack_cache",
@@ -1654,9 +1653,8 @@ static inline void init_task_pid_links(struct task_struct *task)
 {
        enum pid_type type;
 
-       for (type = PIDTYPE_PID; type < PIDTYPE_MAX; ++type) {
+       for (type = PIDTYPE_PID; type < PIDTYPE_MAX; ++type)
                INIT_HLIST_NODE(&task->pid_links[type]);
-       }
 }
 
 static inline void

diff --git a/kernel/kthread.c b/kernel/kthread.c
index a5eceec..fb9c3dc 100644 (file)
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -294,7 +294,7 @@ static int kthread(void *_create)
        do_exit(ret);
 }
 
-/* called from do_fork() to get node information for about to be created task */
+/* called from kernel_clone() to get node information for about to be created task */
 int tsk_fork_get_node(struct task_struct *tsk)
 {
 #ifdef CONFIG_NUMA

diff --git a/kernel/signal.c b/kernel/signal.c
index 6b9c431..5ad8566 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3704,7 +3704,8 @@ static bool access_pidfd_pidns(struct pid *pid)
        return true;
 }
 
-static int copy_siginfo_from_user_any(kernel_siginfo_t *kinfo, siginfo_t *info)
+static int copy_siginfo_from_user_any(kernel_siginfo_t *kinfo,
+               siginfo_t __user *info)
 {
 #ifdef CONFIG_COMPAT
        /*