coredump: kill MMF_DUMPABLE and MMF_DUMP_SECURELY

[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index ffccdad..124430b 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -400,10 +400,8 @@ extern int get_dumpable(struct mm_struct *mm);
 #define SUID_DUMP_ROOT         2       /* Dump as root */
 
 /* mm flags */
-/* dumpable bits */
-#define MMF_DUMPABLE      0  /* core dump is permitted */
-#define MMF_DUMP_SECURELY 1  /* core file is readable only by root */
 
+/* for SUID_DUMP_* above */
 #define MMF_DUMPABLE_BITS 2
 #define MMF_DUMPABLE_MASK ((1 << MMF_DUMPABLE_BITS) - 1)
 
@@ -549,6 +547,7 @@ struct signal_struct {
        atomic_t                sigcnt;
        atomic_t                live;
        int                     nr_threads;
+       struct list_head        thread_head;
 
        wait_queue_head_t       wait_chldexit;  /* for wait4() */
 
@@ -1271,6 +1270,7 @@ struct task_struct {
        /* PID/PID hash table linkage. */
        struct pid_link pids[PIDTYPE_MAX];
        struct list_head thread_group;
+       struct list_head thread_node;
 
        struct completion *vfork_done;          /* for vfork() */
        int __user *set_child_tid;              /* CLONE_CHILD_SETTID */
@@ -2341,6 +2341,16 @@ extern bool current_is_single_threaded(void);
 #define while_each_thread(g, t) \
        while ((t = next_thread(t)) != g)
 
+#define __for_each_thread(signal, t)   \
+       list_for_each_entry_rcu(t, &(signal)->thread_head, thread_node)
+
+#define for_each_thread(p, t)          \
+       __for_each_thread((p)->signal, t)
+
+/* Careful: this is a double loop, 'break' won't work as expected. */
+#define for_each_process_thread(p, t)  \
+       for_each_process(p) for_each_thread(p, t)
+
 static inline int get_nr_threads(struct task_struct *tsk)
 {
        return tsk->signal->nr_threads;