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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-08-27 09:56:55 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-08-28 09:19:30 +0200 |
| commit | 0628a5fbe1b5af35ef5346443ff1056e257a7350 (patch) | |
| tree | 9a3d662bca1e9e12dfe7c618545e961f9d29e14d /arch/s390/kernel/ptrace.c | |
| parent | 0196c642f76c469c17ca09d7f904bccc123bac09 (diff) | |
| download | linux-0628a5fbe1b5af35ef5346443ff1056e257a7350.tar.gz linux-0628a5fbe1b5af35ef5346443ff1056e257a7350.tar.bz2 linux-0628a5fbe1b5af35ef5346443ff1056e257a7350.zip | |
s390/tx: allow program interruption filtering in user space
A user space program using the transactional execution facility
should be allowed to do program interrupt filtering. Do not set the
transactional-execution program-interruption-filtering override (PIFO)
bit in CR0.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/ptrace.c')
| -rw-r--r-- | arch/s390/kernel/ptrace.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 2bc08039140f..9556905bd3ce 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -60,11 +60,11 @@ void update_cr_regs(struct task_struct *task) __ctl_store(cr, 0, 2); cr_new[1] = cr[1]; - /* Set or clear transaction execution TXC/PIFO bits 8 and 9. */ + /* Set or clear transaction execution TXC bit 8. */ if (task->thread.per_flags & PER_FLAG_NO_TE) - cr_new[0] = cr[0] & ~(3UL << 54); + cr_new[0] = cr[0] & ~(1UL << 55); else - cr_new[0] = cr[0] | (3UL << 54); + cr_new[0] = cr[0] | (1UL << 55); /* Set or clear transaction execution TDC bits 62 and 63. */ cr_new[2] = cr[2] & ~3UL; if (task->thread.per_flags & PER_FLAG_TE_ABORT_RAND) { |