diff options
Diffstat (limited to 'include/asm-um/processor-generic.h')
| -rw-r--r-- | include/asm-um/processor-generic.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h index 038ba6fc88b8..b2fc94fbc2d9 100644 --- a/include/asm-um/processor-generic.h +++ b/include/asm-um/processor-generic.h @@ -17,12 +17,13 @@ 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; - unsigned long cr2; - int err; - unsigned long trap_no; int singlestep_syscall; void *fault_addr; void *fault_catcher; @@ -70,8 +71,6 @@ struct thread_struct { .forking = 0, \ .nsyscalls = 0, \ .regs = EMPTY_REGS, \ - .cr2 = 0, \ - .err = 0, \ .fault_addr = NULL, \ .prev_sched = NULL, \ .temp_stack = 0, \ @@ -89,7 +88,11 @@ extern struct task_struct *alloc_task_struct(void); extern void release_thread(struct task_struct *); extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); extern void dump_thread(struct pt_regs *regs, struct user *u); -extern void prepare_to_copy(struct task_struct *tsk); + +static inline void prepare_to_copy(struct task_struct *tsk) +{ +} + extern unsigned long thread_saved_pc(struct task_struct *t); |