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Commit 37bfbaf9 authored by Al Viro's avatar Al Viro Committed by Linus Torvalds
Browse files

[PATCH] alpha: task_thread_info() 



use task_thread_info() for accesses to thread_info of task in arch/alpha
and include/asm-alpha

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 9fc65876

arch/alpha/kernel/process.c

+2 −2
Original line number Diff line number Diff line
@@ -493,7 +493,7 @@ unsigned long 
thread_saved_pc(task_t *t)

{

	unsigned long base = (unsigned long)t->thread_info;

	unsigned long fp, sp = t->thread_info->pcb.ksp;

	unsigned long fp, sp = task_thread_info(t)->pcb.ksp;



	if (sp > base && sp+6*8 < base + 16*1024) {

		fp = ((unsigned long*)sp)[6];
@@ -523,7 +523,7 @@ get_wchan(struct task_struct *p) 


	pc = thread_saved_pc(p);

	if (in_sched_functions(pc)) {

		schedule_frame = ((unsigned long *)p->thread_info->pcb.ksp)[6];

		schedule_frame = ((unsigned long *)task_thread_info(p)->pcb.ksp)[6];

		return ((unsigned long *)schedule_frame)[12];

	}

	return pc;

arch/alpha/kernel/ptrace.c

+19 −19
Original line number Diff line number Diff line
@@ -103,9 +103,9 @@ get_reg_addr(struct task_struct * task, unsigned long regno) 
	unsigned long *addr;



	if (regno == 30) {

		addr = &task->thread_info->pcb.usp;

		addr = &task_thread_info(task)->pcb.usp;

	} else if (regno == 65) {

		addr = &task->thread_info->pcb.unique;

		addr = &task_thread_info(task)->pcb.unique;

	} else if (regno == 31 || regno > 65) {

		zero = 0;

		addr = &zero;
@@ -125,7 +125,7 @@ get_reg(struct task_struct * task, unsigned long regno) 
	if (regno == 63) {

		unsigned long fpcr = *get_reg_addr(task, regno);

		unsigned long swcr

		  = task->thread_info->ieee_state & IEEE_SW_MASK;

		  = task_thread_info(task)->ieee_state & IEEE_SW_MASK;

		swcr = swcr_update_status(swcr, fpcr);

		return fpcr | swcr;

	}
@@ -139,8 +139,8 @@ static int 
put_reg(struct task_struct *task, unsigned long regno, unsigned long data)

{

	if (regno == 63) {

		task->thread_info->ieee_state

		  = ((task->thread_info->ieee_state & ~IEEE_SW_MASK)

		task_thread_info(task)->ieee_state

		  = ((task_thread_info(task)->ieee_state & ~IEEE_SW_MASK)

		     | (data & IEEE_SW_MASK));

		data = (data & FPCR_DYN_MASK) | ieee_swcr_to_fpcr(data);

	}
@@ -188,35 +188,35 @@ ptrace_set_bpt(struct task_struct * child) 
		 * branch (emulation can be tricky for fp branches).

		 */

		displ = ((s32)(insn << 11)) >> 9;

		child->thread_info->bpt_addr[nsaved++] = pc + 4;

		task_thread_info(child)->bpt_addr[nsaved++] = pc + 4;

		if (displ)		/* guard against unoptimized code */

			child->thread_info->bpt_addr[nsaved++]

			task_thread_info(child)->bpt_addr[nsaved++]

			  = pc + 4 + displ;

		DBG(DBG_BPT, ("execing branch\n"));

	} else if (op_code == 0x1a) {

		reg_b = (insn >> 16) & 0x1f;

		child->thread_info->bpt_addr[nsaved++] = get_reg(child, reg_b);

		task_thread_info(child)->bpt_addr[nsaved++] = get_reg(child, reg_b);

		DBG(DBG_BPT, ("execing jump\n"));

	} else {

		child->thread_info->bpt_addr[nsaved++] = pc + 4;

		task_thread_info(child)->bpt_addr[nsaved++] = pc + 4;

		DBG(DBG_BPT, ("execing normal insn\n"));

	}



	/* install breakpoints: */

	for (i = 0; i < nsaved; ++i) {

		res = read_int(child, child->thread_info->bpt_addr[i],

		res = read_int(child, task_thread_info(child)->bpt_addr[i],

			       (int *) &insn);

		if (res < 0)

			return res;

		child->thread_info->bpt_insn[i] = insn;

		task_thread_info(child)->bpt_insn[i] = insn;

		DBG(DBG_BPT, ("    -> next_pc=%lx\n",

			      child->thread_info->bpt_addr[i]));

		res = write_int(child, child->thread_info->bpt_addr[i],

			      task_thread_info(child)->bpt_addr[i]));

		res = write_int(child, task_thread_info(child)->bpt_addr[i],

				BREAKINST);

		if (res < 0)

			return res;

	}

	child->thread_info->bpt_nsaved = nsaved;

	task_thread_info(child)->bpt_nsaved = nsaved;

	return 0;

}
@@ -227,9 +227,9 @@ ptrace_set_bpt(struct task_struct * child) 
int

ptrace_cancel_bpt(struct task_struct * child)

{

	int i, nsaved = child->thread_info->bpt_nsaved;

	int i, nsaved = task_thread_info(child)->bpt_nsaved;



	child->thread_info->bpt_nsaved = 0;

	task_thread_info(child)->bpt_nsaved = 0;



	if (nsaved > 2) {

		printk("ptrace_cancel_bpt: bogus nsaved: %d!\n", nsaved);
@@ -237,8 +237,8 @@ ptrace_cancel_bpt(struct task_struct * child) 
	}



	for (i = 0; i < nsaved; ++i) {

		write_int(child, child->thread_info->bpt_addr[i],

			  child->thread_info->bpt_insn[i]);

		write_int(child, task_thread_info(child)->bpt_addr[i],

			  task_thread_info(child)->bpt_insn[i]);

	}

	return (nsaved != 0);

}
@@ -355,7 +355,7 @@ do_sys_ptrace(long request, long pid, long addr, long data, 
		if (!valid_signal(data))

			break;

		/* Mark single stepping.  */

		child->thread_info->bpt_nsaved = -1;

		task_thread_info(child)->bpt_nsaved = -1;

		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);

		child->exit_code = data;

		wake_up_process(child);

arch/alpha/kernel/smp.c

+1 −1
Original line number Diff line number Diff line
@@ -302,7 +302,7 @@ secondary_cpu_start(int cpuid, struct task_struct *idle) 
		 + hwrpb->processor_offset

		 + cpuid * hwrpb->processor_size);

	hwpcb = (struct pcb_struct *) cpu->hwpcb;

	ipcb = &idle->thread_info->pcb;

	ipcb = &task_thread_info(idle)->pcb;



	/* Initialize the CPU's HWPCB to something just good enough for

	   us to get started.  Immediately after starting, we'll swpctx

include/asm-alpha/mmu_context.h

+3 −3
Original line number Diff line number Diff line
@@ -156,7 +156,7 @@ ev5_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm, 
	/* Always update the PCB ASN.  Another thread may have allocated

	   a new mm->context (via flush_tlb_mm) without the ASN serial

	   number wrapping.  We have no way to detect when this is needed.  */

	next->thread_info->pcb.asn = mmc & HARDWARE_ASN_MASK;

	task_thread_info(next)->pcb.asn = mmc & HARDWARE_ASN_MASK;

}



__EXTERN_INLINE void
@@ -235,7 +235,7 @@ init_new_context(struct task_struct *tsk, struct mm_struct *mm) 
		if (cpu_online(i))

			mm->context[i] = 0;

	if (tsk != current)

		tsk->thread_info->pcb.ptbr

		task_thread_info(tsk)->pcb.ptbr

		  = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;

	return 0;

}
@@ -249,7 +249,7 @@ destroy_context(struct mm_struct *mm) 
static inline void

enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)

{

	tsk->thread_info->pcb.ptbr

	task_thread_info(tsk)->pcb.ptbr

	  = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;

}

include/asm-alpha/processor.h

+1 −1
Original line number Diff line number Diff line
@@ -64,7 +64,7 @@ unsigned long get_wchan(struct task_struct *p); 
  (*(unsigned long *)(PT_REG(pc) + (unsigned long) ((tsk)->thread_info)))



#define KSTK_ESP(tsk) \

  ((tsk) == current ? rdusp() : (tsk)->thread_info->pcb.usp)

  ((tsk) == current ? rdusp() : task_thread_info(tsk)->pcb.usp)



#define cpu_relax()	barrier()