X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Fx86%2Fkernel%2Fprocess.c;h=e7e35219b32f23e115c23846d06c07b0128e26ae;hp=cc6877535ef49919f7f8d207d68f6e57d73489ea;hb=41d59102e146a4423a490b8eca68a5860af4fe1c;hpb=3e1dd193edefd2a806a0ba6cf0879cf1a95217da diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index cc6877535ef4..e7e35219b32f 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -31,24 +31,22 @@ struct kmem_cache *task_xstate_cachep; int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) { + int ret; + *dst = *src; - if (src->thread.xstate) { - dst->thread.xstate = kmem_cache_alloc(task_xstate_cachep, - GFP_KERNEL); - if (!dst->thread.xstate) - return -ENOMEM; - WARN_ON((unsigned long)dst->thread.xstate & 15); - memcpy(dst->thread.xstate, src->thread.xstate, xstate_size); + if (fpu_allocated(&src->thread.fpu)) { + memset(&dst->thread.fpu, 0, sizeof(dst->thread.fpu)); + ret = fpu_alloc(&dst->thread.fpu); + if (ret) + return ret; + fpu_copy(&dst->thread.fpu, &src->thread.fpu); } return 0; } void free_thread_xstate(struct task_struct *tsk) { - if (tsk->thread.xstate) { - kmem_cache_free(task_xstate_cachep, tsk->thread.xstate); - tsk->thread.xstate = NULL; - } + fpu_free(&tsk->thread.fpu); } void free_thread_info(struct thread_info *ti)