From: Cyril Bur <cyrilbur@gmail.com>
To: linuxppc-dev@ozlabs.org
Cc: mikey@neuling.org
Subject: [PATCH V2 4/5] powerpc: Move flush_all_to_thread() below save_sprs()
Date: Tue, 5 Apr 2016 09:59:26 +1000 [thread overview]
Message-ID: <1459814367-3057-4-git-send-email-cyrilbur@gmail.com> (raw)
In-Reply-To: <1459814367-3057-1-git-send-email-cyrilbur@gmail.com>
Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
---
arch/powerpc/kernel/process.c | 34 +++++++++++++++++-----------------
1 file changed, 17 insertions(+), 17 deletions(-)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 56444a6..7625976 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -511,23 +511,6 @@ void save_all(struct task_struct *tsk)
msr_check_and_clear(msr_all_available);
}
-void flush_all_to_thread(struct task_struct *tsk)
-{
- if (tsk->thread.regs) {
- preempt_disable();
- BUG_ON(tsk != current);
- save_all(tsk);
-
-#ifdef CONFIG_SPE
- if (tsk->thread.regs->msr & MSR_SPE)
- tsk->thread.spefscr = mfspr(SPRN_SPEFSCR);
-#endif
-
- preempt_enable();
- }
-}
-EXPORT_SYMBOL(flush_all_to_thread);
-
#ifdef CONFIG_PPC_ADV_DEBUG_REGS
void do_send_trap(struct pt_regs *regs, unsigned long address,
unsigned long error_code, int signal_code, int breakpt)
@@ -1047,6 +1030,23 @@ static inline void restore_sprs(struct thread_struct *old_thread,
#endif
}
+void flush_all_to_thread(struct task_struct *tsk)
+{
+ if (tsk->thread.regs) {
+ preempt_disable();
+ BUG_ON(tsk != current);
+ save_all(tsk);
+
+#ifdef CONFIG_SPE
+ if (tsk->thread.regs->msr & MSR_SPE)
+ tsk->thread.spefscr = mfspr(SPRN_SPEFSCR);
+#endif
+
+ preempt_enable();
+ }
+}
+EXPORT_SYMBOL(flush_all_to_thread);
+
struct task_struct *__switch_to(struct task_struct *prev,
struct task_struct *new)
{
--
2.7.4
next prev parent reply other threads:[~2016-04-05 0:01 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-04 23:59 [PATCH V2 1/5] selftests/powerpc: Add exec() test to check for spr sanitisation Cyril Bur
2016-04-04 23:59 ` [PATCH V2 2/5] selftests/powerpc: Add fork() test to check for spr being preserved Cyril Bur
2016-04-04 23:59 ` [PATCH V2 3/5] powerpc: Fix SPR leak across exec() syscalls Cyril Bur
2016-04-04 23:59 ` Cyril Bur [this message]
2016-04-04 23:59 ` [PATCH V2 5/5] powerpc: Preserve the SPR values across fork() syscalls Cyril Bur
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