diff options
Diffstat (limited to 'arch/powerpc/kernel/ptrace.c')
| -rw-r--r-- | arch/powerpc/kernel/ptrace.c | 55 |
1 files changed, 22 insertions, 33 deletions
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index 925a4ef90559..07cd22e35405 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -127,12 +127,19 @@ static void flush_tmregs_to_thread(struct task_struct *tsk) * If task is not current, it will have been flushed already to * it's thread_struct during __switch_to(). * - * A reclaim flushes ALL the state. + * A reclaim flushes ALL the state or if not in TM save TM SPRs + * in the appropriate thread structures from live. */ - if (tsk == current && MSR_TM_SUSPENDED(mfmsr())) - tm_reclaim_current(TM_CAUSE_SIGNAL); + if (tsk != current) + return; + if (MSR_TM_SUSPENDED(mfmsr())) { + tm_reclaim_current(TM_CAUSE_SIGNAL); + } else { + tm_enable(); + tm_save_sprs(&(tsk->thread)); + } } #else static inline void flush_tmregs_to_thread(struct task_struct *tsk) { } @@ -1587,11 +1594,8 @@ static int ppr_get(struct task_struct *target, unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) { - int ret; - - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &target->thread.ppr, 0, sizeof(u64)); - return ret; + return user_regset_copyout(&pos, &count, &kbuf, &ubuf, + &target->thread.ppr, 0, sizeof(u64)); } static int ppr_set(struct task_struct *target, @@ -1599,11 +1603,8 @@ static int ppr_set(struct task_struct *target, unsigned int pos, unsigned int count, const void *kbuf, const void __user *ubuf) { - int ret; - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &target->thread.ppr, 0, sizeof(u64)); - return ret; + return user_regset_copyin(&pos, &count, &kbuf, &ubuf, + &target->thread.ppr, 0, sizeof(u64)); } static int dscr_get(struct task_struct *target, @@ -1611,22 +1612,16 @@ static int dscr_get(struct task_struct *target, unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) { - int ret; - - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &target->thread.dscr, 0, sizeof(u64)); - return ret; + return user_regset_copyout(&pos, &count, &kbuf, &ubuf, + &target->thread.dscr, 0, sizeof(u64)); } static int dscr_set(struct task_struct *target, const struct user_regset *regset, unsigned int pos, unsigned int count, const void *kbuf, const void __user *ubuf) { - int ret; - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &target->thread.dscr, 0, sizeof(u64)); - return ret; + return user_regset_copyin(&pos, &count, &kbuf, &ubuf, + &target->thread.dscr, 0, sizeof(u64)); } #endif #ifdef CONFIG_PPC_BOOK3S_64 @@ -1635,22 +1630,16 @@ static int tar_get(struct task_struct *target, unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) { - int ret; - - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &target->thread.tar, 0, sizeof(u64)); - return ret; + return user_regset_copyout(&pos, &count, &kbuf, &ubuf, + &target->thread.tar, 0, sizeof(u64)); } static int tar_set(struct task_struct *target, const struct user_regset *regset, unsigned int pos, unsigned int count, const void *kbuf, const void __user *ubuf) { - int ret; - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &target->thread.tar, 0, sizeof(u64)); - return ret; + return user_regset_copyin(&pos, &count, &kbuf, &ubuf, + &target->thread.tar, 0, sizeof(u64)); } static int ebb_active(struct task_struct *target, |