diff options
| author | Ingo Molnar <mingo@kernel.org> | 2015-04-24 02:07:33 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-19 15:47:28 +0200 |
| commit | f9bc977fe734772a7ca4a467fe4fd74e1ea3a849 (patch) | |
| tree | 6989716f76580af10453f06426431b7878b47576 /arch/x86 | |
| parent | 0c070595ceccb391100127a28ff837c50356ad67 (diff) | |
| download | blackbird-op-linux-f9bc977fe734772a7ca4a467fe4fd74e1ea3a849.tar.gz blackbird-op-linux-f9bc977fe734772a7ca4a467fe4fd74e1ea3a849.zip | |
x86/fpu: Use 'struct fpu' in fpu_copy()
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/kernel/fpu/core.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c index b685e9e90491..9aaba6abfae3 100644 --- a/arch/x86/kernel/fpu/core.c +++ b/arch/x86/kernel/fpu/core.c @@ -227,15 +227,12 @@ EXPORT_SYMBOL_GPL(fpstate_free); * In the 'lazy' case we save to the source context, mark the FPU lazy * via stts() and copy the source context into the destination context. */ -static void fpu_copy(struct task_struct *dst, struct task_struct *src) +static void fpu_copy(struct fpu *dst_fpu, struct fpu *src_fpu) { - struct fpu *dst_fpu = &dst->thread.fpu; - struct fpu *src_fpu = &src->thread.fpu; - - WARN_ON(src != current); + WARN_ON(src_fpu != ¤t->thread.fpu); if (use_eager_fpu()) { - memset(&dst->thread.fpu.state->xsave, 0, xstate_size); + memset(&dst_fpu->state->xsave, 0, xstate_size); __save_fpu(dst_fpu); } else { fpu__save(src_fpu); @@ -258,7 +255,7 @@ int fpu__copy(struct task_struct *dst, struct task_struct *src) if (err) return err; - fpu_copy(dst, src); + fpu_copy(dst_fpu, src_fpu); } return 0; } |
