coredump masking: reimplementation of dumpable using two flags

[safe/jmp/linux-2.6] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 731edac..8dbd083 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -345,6 +345,13 @@ typedef unsigned long mm_counter_t;
                (mm)->hiwater_vm = (mm)->total_vm;      \
 } while (0)
 
+extern void set_dumpable(struct mm_struct *mm, int value);
+extern int get_dumpable(struct mm_struct *mm);
+
+/* mm flags */
+#define MMF_DUMPABLE      0  /* core dump is permitted */
+#define MMF_DUMP_SECURELY 1  /* core file is readable only by root */
+
 struct mm_struct {
        struct vm_area_struct * mmap;           /* list of VMAs */
        struct rb_root mm_rb;
@@ -402,7 +409,7 @@ struct mm_struct {
        unsigned int token_priority;
        unsigned int last_interval;
 
-       unsigned char dumpable:2;
+       unsigned long flags; /* Must use atomic bitops to access the bits */
 
        /* coredumping support */
        int core_waiters;