Merge pull request #5 from LvNA-system/small_patch

remove unused code in task_struct and switch_to

arch/riscv/include/asm/switch_to.h

@@ -85,12 +85,6 @@ do {							\
 	struct task_struct *__prev = (prev);		\
 	struct task_struct *__next = (next);		\
 	csr_write(0x9c0, __next->dsid);             \
-    if (debug_install) {                        \
-        cp_reg_w(SIZES,smp_processor_id(),__next->sizes);    \
-        cp_reg_w(INC,smp_processor_id(),__next->inc);     \
-        cp_reg_w(FREQ,smp_processor_id(),__next->freq);     \
-        cp_reg_w(DSID,smp_processor_id(),__next->dsid);     \
-    }\
     __switch_to_aux(__prev, __next);	     	\
 	((last) = __switch_to(__prev, __next));		\
 } while (0)

include/linux/sched.h

@@ -601,9 +601,6 @@ struct task_struct {
 
 #ifdef CONFIG_CGROUP_DSID
     unsigned int dsid;
-    unsigned int sizes;
-    unsigned int freq;
-    unsigned int inc;
 #endif
 
 	/* -1 unrunnable, 0 runnable, >0 stopped: */