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x86/fpu: Remove 'struct task_struct' usage from __thread_fpu_end()

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Migrate this function to pure 'struct fpu' usage.

Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2015-04-23 12:26:55 +02:00
parent c0311f63e3
commit 35191e3f07
2 changed files with 4 additions and 4 deletions
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6
arch/x86/include/asm/fpu-internal.h
View file

@ -344,9 +344,9 @@ static inline void __thread_set_has_fpu(struct fpu *fpu)
* These generally need preemption protection to work,
* do try to avoid using these on their own.
*/
static inline void __thread_fpu_end(struct task_struct *tsk)
static inline void __thread_fpu_end(struct fpu *fpu)
{
__thread_clear_has_fpu(&tsk->thread.fpu);
__thread_clear_has_fpu(fpu);
if (!use_eager_fpu())
stts();
}
@ -372,7 +372,7 @@ static inline void drop_fpu(struct task_struct *tsk)
asm volatile("1: fwait\n"
"2:\n"
_ASM_EXTABLE(1b, 2b));
__thread_fpu_end(tsk);
__thread_fpu_end(fpu);
}
clear_stopped_child_used_math(tsk);

2
arch/x86/kernel/fpu/core.c
View file

@ -143,7 +143,7 @@ void fpu__save(struct task_struct *tsk)
__save_fpu(tsk);
} else {
fpu_save_init(fpu);
__thread_fpu_end(tsk);
__thread_fpu_end(fpu);
}
}
preempt_enable();