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-rw-r--r--include/asm-um/processor-generic.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h
index 4d94049..b953b1a 100644
--- a/include/asm-um/processor-generic.h
+++ b/include/asm-um/processor-generic.h
@@ -17,6 +17,10 @@ struct task_struct;
struct mm_struct;
struct thread_struct {
+ /* This flag is set to 1 before calling do_fork (and analyzed in
+ * copy_thread) to mark that we are begin called from userspace (fork /
+ * vfork / clone), and reset to 0 after. It is left to 0 when called
+ * from kernelspace (i.e. kernel_thread() or fork_idle(), as of 2.6.11). */
int forking;
int nsyscalls;
struct pt_regs regs;
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