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| author | Vineet Gupta <Vineet.Gupta1@synopsys.com> | 2013-11-13 00:08:45 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-13 04:09:13 +0100 |
| commit | 616c05d110bb4ef8203f49c9d2476874077c2f6a (patch) | |
| tree | eb5bc88a430509fcdb8afe8ee9f344c903d1894d /arch/sh/kernel/process_32.c | |
| parent | jump_label: unlikely(x) > 0 (diff) | |
| download | linux-616c05d110bb4ef8203f49c9d2476874077c2f6a.tar.xz linux-616c05d110bb4ef8203f49c9d2476874077c2f6a.zip | |
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 <vgupta@synopsys.com>
Cc: Paul Mundt <paul.mundt@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sh/kernel/process_32.c')
| -rw-r--r-- | arch/sh/kernel/process_32.c | 6 |
1 files changed, 3 insertions, 3 deletions
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; |