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| author | Ananth N Mavinakayanahalli <ananth@in.ibm.com> | 2005-06-08 15:50:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-08 16:21:13 -0700 |
| commit | f829fd23c87918374bac0d90404fe12f0e788d52 (patch) | |
| tree | 2f1e238d0b16e2784eee46e62a5a09f94ffd406f /arch | |
| parent | 63224d1e8b4cf87cc7420201a8cb3b44b9bf0b40 (diff) | |
| download | linux-f829fd23c87918374bac0d90404fe12f0e788d52.tar.gz linux-f829fd23c87918374bac0d90404fe12f0e788d52.tar.bz2 linux-f829fd23c87918374bac0d90404fe12f0e788d52.zip | |
[PATCH] ppc64 kprobes: remove spurious MSR_SE masking
Remove spurious MSR_SE reset during kprobe processing.
single_step_exception() already does it for us. Reset it to be safe when
executing the fault_handler.
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ppc64/kernel/kprobes.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/ppc64/kernel/kprobes.c b/arch/ppc64/kernel/kprobes.c index 8f3317244311..e950a2058a19 100644 --- a/arch/ppc64/kernel/kprobes.c +++ b/arch/ppc64/kernel/kprobes.c @@ -177,8 +177,6 @@ static void resume_execution(struct kprobe *p, struct pt_regs *regs) ret = emulate_step(regs, p->ainsn.insn[0]); if (ret == 0) regs->nip = (unsigned long)p->addr + 4; - - regs->msr &= ~MSR_SE; } static inline int post_kprobe_handler(struct pt_regs *regs) @@ -215,6 +213,7 @@ static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr) if (kprobe_status & KPROBE_HIT_SS) { resume_execution(current_kprobe, regs); + regs->msr &= ~MSR_SE; regs->msr |= kprobe_saved_msr; unlock_kprobes(); |