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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-01-14 08:37:53 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-01-14 08:37:53 -0800 |
| commit | 61c39bb354a1f791ba6f562b766a72e508a036ee (patch) | |
| tree | 1186cd23bc50089c8506b19403220ca46542de2c /arch/s390/kernel/ptrace.c | |
| parent | 4a24eef671614aea479eac6c9ce5fa2cf590ee76 (diff) | |
| parent | c5406079780f0f687316732353f49c3357504428 (diff) | |
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] tape_char: add missing compat_ptr conversion
[S390] zcrypt: add sanity check before copy_from_user()
[S390] unwire sys_recvmmsg again
[S390] con3215: remove empty ioctl function
[S390] dasd: add proper compat pointer conversion for symmetrix ioctl
[S390] mmap: add missing compat_ptr conversion to both mmap compat syscalls
[S390] bug: implement arch specific __WARN macro
[S390] Move __cpu_logical_map to smp.c
[S390] tape_block: remove ioctl function
[S390] smp: remove volatile type quilifier from __cpu_logical_map
[S390] smp: setup smp_processor_id early
[S390] use helpers for rlimits
[S390] fs3270: add missing compat ptr conversion
[S390] vmcp: add missing compat ptr conversion
[S390] cio: add missing compat ptr conversion
[S390] dasd: add missing compat ptr conversion
[S390] remove superfluous TIF_USEDFPU bit
[S390] duplicate SIGTRAP on signal delivery.
[S390] clear TIF_SINGLE_STEP for new process.
[S390] fix loading of PER control registers for utrace.
Diffstat (limited to 'arch/s390/kernel/ptrace.c')
| -rw-r--r-- | arch/s390/kernel/ptrace.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 13815d39f7d..7cf46423441 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -65,6 +65,7 @@ FixPerRegisters(struct task_struct *task) { struct pt_regs *regs; per_struct *per_info; + per_cr_words cr_words; regs = task_pt_regs(task); per_info = (per_struct *) &task->thread.per_info; @@ -98,6 +99,13 @@ FixPerRegisters(struct task_struct *task) per_info->control_regs.bits.storage_alt_space_ctl = 1; else per_info->control_regs.bits.storage_alt_space_ctl = 0; + + if (task == current) { + __ctl_store(cr_words, 9, 11); + if (memcmp(&cr_words, &per_info->control_regs.words, + sizeof(cr_words)) != 0) + __ctl_load(per_info->control_regs.words, 9, 11); + } } void user_enable_single_step(struct task_struct *task) |