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| author | Ingo Molnar <mingo@kernel.org> | 2015-04-23 12:24:59 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-19 15:47:23 +0200 |
| commit | c0311f63e3cc8b29b6006ac8c1d4e3f6fbb2e357 (patch) | |
| tree | b92cbd2a14e21961a98dd7c37946d0caacbcff11 /arch/x86 | |
| parent | 36b544dcd3f935bd33ada700d070433a57982771 (diff) | |
| download | blackbird-op-linux-c0311f63e3cc8b29b6006ac8c1d4e3f6fbb2e357.tar.gz blackbird-op-linux-c0311f63e3cc8b29b6006ac8c1d4e3f6fbb2e357.zip | |
x86/fpu: Remove 'struct task_struct' usage from __thread_set_has_fpu()
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>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/fpu-internal.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h index d0fe7bbb51d1..cf0d4124fb3d 100644 --- a/arch/x86/include/asm/fpu-internal.h +++ b/arch/x86/include/asm/fpu-internal.h @@ -331,10 +331,10 @@ static inline void __thread_clear_has_fpu(struct fpu *fpu) } /* Must be paired with a 'clts' before! */ -static inline void __thread_set_has_fpu(struct task_struct *tsk) +static inline void __thread_set_has_fpu(struct fpu *fpu) { - tsk->thread.fpu.has_fpu = 1; - this_cpu_write(fpu_fpregs_owner_ctx, &tsk->thread.fpu); + fpu->has_fpu = 1; + this_cpu_write(fpu_fpregs_owner_ctx, fpu); } /* @@ -355,7 +355,7 @@ static inline void __thread_fpu_begin(struct task_struct *tsk) { if (!use_eager_fpu()) clts(); - __thread_set_has_fpu(tsk); + __thread_set_has_fpu(&tsk->thread.fpu); } static inline void drop_fpu(struct task_struct *tsk) @@ -416,6 +416,7 @@ typedef struct { int preload; } fpu_switch_t; static inline fpu_switch_t switch_fpu_prepare(struct task_struct *old, struct task_struct *new, int cpu) { struct fpu *old_fpu = &old->thread.fpu; + struct fpu *new_fpu = &new->thread.fpu; fpu_switch_t fpu; /* @@ -437,7 +438,7 @@ static inline fpu_switch_t switch_fpu_prepare(struct task_struct *old, struct ta /* Don't change CR0.TS if we just switch! */ if (fpu.preload) { new->thread.fpu.counter++; - __thread_set_has_fpu(new); + __thread_set_has_fpu(new_fpu); prefetch(new->thread.fpu.state); } else if (!use_eager_fpu()) stts(); |
