Commit-ID: dc56c0f9b870fba7a4eef2bb463db6881284152b Gitweb: http://git.kernel.org/tip/dc56c0f9b870fba7a4eef2bb463db6881284152b Author: Oleg Nesterov <[email protected]> AuthorDate: Tue, 2 Sep 2014 19:57:30 +0200 Committer: H. Peter Anvin <[email protected]> CommitDate: Tue, 2 Sep 2014 14:51:16 -0700
x86, fpu: Shift "fpu_counter = 0" from copy_thread() to arch_dup_task_struct() Cosmetic, but I think thread.fpu_counter should be initialized in arch_dup_task_struct() too, along with other "fpu" variables. And probably it make sense to turn it into thread.fpu->counter. Signed-off-by: Oleg Nesterov <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Reviewed-by: Suresh Siddha <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]> --- arch/x86/kernel/process.c | 1 + arch/x86/kernel/process_32.c | 2 -- arch/x86/kernel/process_64.c | 1 - 3 files changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index a44268c..e127dda 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -66,6 +66,7 @@ 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.last_cpu = ~0; dst->thread.fpu.state = NULL; diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index 7bc86bb..c73b3c1 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -152,7 +152,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, childregs->orig_ax = -1; childregs->cs = __KERNEL_CS | get_kernel_rpl(); childregs->flags = X86_EFLAGS_IF | X86_EFLAGS_FIXED; - p->thread.fpu_counter = 0; p->thread.io_bitmap_ptr = NULL; memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps)); return 0; @@ -165,7 +164,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, p->thread.ip = (unsigned long) ret_from_fork; task_user_gs(p) = get_user_gs(current_pt_regs()); - p->thread.fpu_counter = 0; p->thread.io_bitmap_ptr = NULL; tsk = current; err = -ENOMEM; diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index ca5b02d..593257d 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -163,7 +163,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, p->thread.sp = (unsigned long) childregs; p->thread.usersp = me->thread.usersp; set_tsk_thread_flag(p, TIF_FORK); - p->thread.fpu_counter = 0; p->thread.io_bitmap_ptr = NULL; savesegment(gs, p->thread.gsindex); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
