From 616c05d110bb4ef8203f49c9d2476874077c2f6a Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Tue, 12 Nov 2013 15:08:45 -0800 Subject: sh: move fpu_counter into ARCH specific thread_struct Only a couple of arches (sh/x86) use fpu_counter in task_struct so it can be moved out into ARCH specific thread_struct, reducing the size of task_struct for other arches. Compile tested sh defconfig + sh4-linux-gcc (4.6.3) Signed-off-by: Vineet Gupta Cc: Paul Mundt Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/sh/kernel/cpu/fpu.c | 2 +- arch/sh/kernel/process_32.c | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/sh/kernel') diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c index f8f7af51c128..4e332244ea75 100644 --- a/arch/sh/kernel/cpu/fpu.c +++ b/arch/sh/kernel/cpu/fpu.c @@ -44,7 +44,7 @@ void __fpu_state_restore(void) restore_fpu(tsk); task_thread_info(tsk)->status |= TS_USEDFPU; - tsk->fpu_counter++; + tsk->thread.fpu_counter++; } void fpu_state_restore(struct pt_regs *regs) diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index ebd3933005b4..2885fc9d9dcd 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -156,7 +156,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, #endif ti->addr_limit = KERNEL_DS; ti->status &= ~TS_USEDFPU; - p->fpu_counter = 0; + p->thread.fpu_counter = 0; return 0; } *childregs = *current_pt_regs(); @@ -189,7 +189,7 @@ __switch_to(struct task_struct *prev, struct task_struct *next) unlazy_fpu(prev, task_pt_regs(prev)); /* we're going to use this soon, after a few expensive things */ - if (next->fpu_counter > 5) + if (next->thread.fpu_counter > 5) prefetch(next_t->xstate); #ifdef CONFIG_MMU @@ -207,7 +207,7 @@ __switch_to(struct task_struct *prev, struct task_struct *next) * restore of the math state immediately to avoid the trap; the * chances of needing FPU soon are obviously high now */ - if (next->fpu_counter > 5) + if (next->thread.fpu_counter > 5) __fpu_state_restore(); return prev; -- cgit v1.2.3