Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index b3f8847..6576400 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -10,6 +10,8 @@
#include <linux/cred.h>
#include <linux/refcount.h>
#include <linux/posix-timers.h>
+#include <linux/mm_types.h>
+#include <asm/ptrace.h>
/*
* Types defining task->signal and task->sighand and APIs using them:
@@ -378,6 +380,20 @@
}
/*
+ * This should only be used in fault handlers to decide whether we
+ * should stop the current fault routine to handle the signals
+ * instead, especially with the case where we've got interrupted with
+ * a VM_FAULT_RETRY.
+ */
+static inline bool fault_signal_pending(vm_fault_t fault_flags,
+ struct pt_regs *regs)
+{
+ return unlikely((fault_flags & VM_FAULT_RETRY) &&
+ (fatal_signal_pending(current) ||
+ (user_mode(regs) && signal_pending(current))));
+}
+
+/*
* Reevaluate whether the task has signals pending delivery.
* Wake the task if so.
* This is required every time the blocked sigset_t changes.
@@ -644,17 +660,6 @@
return p->exit_signal >= 0;
}
-/* Do to the insanities of de_thread it is possible for a process
- * to have the pid of the thread group leader without actually being
- * the thread group leader. For iteration through the pids in proc
- * all we care about is that we have a task with the appropriate
- * pid, we don't actually care if we have the right task.
- */
-static inline bool has_group_leader_pid(struct task_struct *p)
-{
- return task_pid(p) == task_tgid(p);
-}
-
static inline
bool same_thread_group(struct task_struct *p1, struct task_struct *p2)
{
@@ -675,6 +680,8 @@
#define delay_group_leader(p) \
(thread_group_leader(p) && !thread_group_empty(p))
+extern bool thread_group_exited(struct pid *pid);
+
extern struct sighand_struct *__lock_task_sighand(struct task_struct *task,
unsigned long *flags);