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Date: Tue, 5 May 2015 18:24:50 +0200
From: Ingo Molnar <mingo@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Andy Lutomirski <luto@...capital.net>,
Borislav Petkov <bp@...en8.de>,
Dave Hansen <dave.hansen@...ux.intel.com>,
Fenghua Yu <fenghua.yu@...el.com>,
"H. Peter Anvin" <hpa@...or.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Oleg Nesterov <oleg@...hat.com>,
Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 070/208] x86/fpu: Clean up fpu__clear() a bit
Reviewed-by: Borislav Petkov <bp@...en8.de>
Cc: Andy Lutomirski <luto@...capital.net>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: Fenghua Yu <fenghua.yu@...el.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Oleg Nesterov <oleg@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
arch/x86/kernel/fpu/core.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
index e24f477f9113..7d69d784d064 100644
--- a/arch/x86/kernel/fpu/core.c
+++ b/arch/x86/kernel/fpu/core.c
@@ -390,13 +390,15 @@ void fpu__clear(struct task_struct *tsk)
if (!use_eager_fpu()) {
/* FPU state will be reallocated lazily at the first use. */
drop_fpu(fpu);
- fpstate_free(&tsk->thread.fpu);
- } else if (!fpu->fpstate_active) {
- /* kthread execs. TODO: cleanup this horror. */
- if (WARN_ON(fpstate_alloc_init(fpu)))
- force_sig(SIGKILL, tsk);
- user_fpu_begin();
- restore_init_xstate();
+ fpstate_free(fpu);
+ } else {
+ if (!fpu->fpstate_active) {
+ /* kthread execs. TODO: cleanup this horror. */
+ if (WARN_ON(fpstate_alloc_init(fpu)))
+ force_sig(SIGKILL, tsk);
+ user_fpu_begin();
+ restore_init_xstate();
+ }
}
}
--
2.1.0
--
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