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| author | David S. Miller <davem@davemloft.net> | 2016-08-30 06:54:02 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-30 06:54:02 +0200 |
| commit | 6abdd5f5935fff978f950561f3c5175eb34dad73 (patch) | |
| tree | 6f3ed3a4f4af9e74436ec9355ebf8201357f1c40 /arch/powerpc/kernel/signal_64.c | |
| parent | net_sched: fix use of uninitialized ethertype variable in cls_flower (diff) | |
| parent | Merge tag 'hwmon-for-linus-v4.8-rc5' of git://git.kernel.org/pub/scm/linux/ke... (diff) | |
| download | linux-6abdd5f5935fff978f950561f3c5175eb34dad73.tar.xz linux-6abdd5f5935fff978f950561f3c5175eb34dad73.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
All three conflicts were cases of simple overlapping
changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/powerpc/kernel/signal_64.c')
| -rw-r--r-- | arch/powerpc/kernel/signal_64.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index 7e49984d4331..70409bb90a95 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -676,7 +676,21 @@ int sys_rt_sigreturn(unsigned long r3, unsigned long r4, unsigned long r5, if (__copy_from_user(&set, &uc->uc_sigmask, sizeof(set))) goto badframe; set_current_blocked(&set); + #ifdef CONFIG_PPC_TRANSACTIONAL_MEM + /* + * If there is a transactional state then throw it away. + * The purpose of a sigreturn is to destroy all traces of the + * signal frame, this includes any transactional state created + * within in. We only check for suspended as we can never be + * active in the kernel, we are active, there is nothing better to + * do than go ahead and Bad Thing later. + * The cause is not important as there will never be a + * recheckpoint so it's not user visible. + */ + if (MSR_TM_SUSPENDED(mfmsr())) + tm_reclaim_current(0); + if (__get_user(msr, &uc->uc_mcontext.gp_regs[PT_MSR])) goto badframe; if (MSR_TM_ACTIVE(msr)) { |