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| author | Ingo Molnar <mingo@kernel.org> | 2015-04-22 16:47:05 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-19 16:47:19 +0300 |
| commit | a752b53d9dcbae28a3a22b5577f0571acf53d5aa (patch) | |
| tree | 875b53eb3ec80ef232326065a7c617d70a2da218 /arch/x86/kernel/process.c | |
| parent | 8ffb53ab986ccb4421b1060182c6e084edd7b9d8 (diff) | |
| download | linux-a752b53d9dcbae28a3a22b5577f0571acf53d5aa.tar.xz | |
x86/fpu: Factor out fpu__copy()
Introduce fpu__copy() and use it in arch_dup_task_struct(),
thus moving another chunk of FPU logic to fpu/core.c.
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/kernel/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 36d9f737f278..bb7d4abcdad6 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -83,17 +83,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) { *dst = *src; - dst->thread.fpu.counter = 0; - dst->thread.fpu.has_fpu = 0; - dst->thread.fpu.state = NULL; - task_disable_lazy_fpu_restore(dst); - if (tsk_used_math(src)) { - int err = fpstate_alloc(&dst->thread.fpu); - if (err) - return err; - fpu_copy(dst, src); - } - return 0; + return fpu__copy(dst, src); } void arch_release_task_struct(struct task_struct *tsk) |