lguest: the guest code

[linux-2.6-omap-h63xx.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 731edaca8ffda05f19f5aefa0ce5c580c0a51450..94f624aef01732409573645e910506b8db903899 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -345,6 +345,27 @@ 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 */
+/* dumpable bits */
+#define MMF_DUMPABLE      0  /* core dump is permitted */
+#define MMF_DUMP_SECURELY 1  /* core file is readable only by root */
+#define MMF_DUMPABLE_BITS 2
+
+/* coredump filter bits */
+#define MMF_DUMP_ANON_PRIVATE  2
+#define MMF_DUMP_ANON_SHARED   3
+#define MMF_DUMP_MAPPED_PRIVATE        4
+#define MMF_DUMP_MAPPED_SHARED 5
+#define MMF_DUMP_FILTER_SHIFT  MMF_DUMPABLE_BITS
+#define MMF_DUMP_FILTER_BITS   4
+#define MMF_DUMP_FILTER_MASK \
+       (((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT)
+#define MMF_DUMP_FILTER_DEFAULT \
+       ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED))
+
 struct mm_struct {
        struct vm_area_struct * mmap;           /* list of VMAs */
        struct rb_root mm_rb;
@@ -402,7 +423,7 @@ 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;