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| author | Oleg Nesterov <oleg@redhat.com> | 2012-10-28 16:55:36 +0100 |
|---|---|---|
| committer | Oleg Nesterov <oleg@redhat.com> | 2012-11-03 17:15:12 +0100 |
| commit | 65b2c8f0e53347583168423de0f32227d8baf01b (patch) | |
| tree | 87b1e9fb5dcbc3e2a5a59192c27b959dc6cc0323 /kernel/events | |
| parent | f57d56dd29003435d1bfc0e675896c368180f8ec (diff) | |
| download | linux-65b2c8f0e53347583168423de0f32227d8baf01b.tar.gz linux-65b2c8f0e53347583168423de0f32227d8baf01b.tar.bz2 linux-65b2c8f0e53347583168423de0f32227d8baf01b.zip | |
uprobes/powerpc: Do not use arch_uprobe_*_step() helpers
No functional changes.
powerpc is the only user of arch_uprobe_enable/disable_step() helpers,
but they should die. They can not be used correctly, every arch needs
its own implementation (like x86 does). And they do not really help
even as initial-and-almost-working code, arch_uprobe_*_xol() hooks can
easily use user_enable/disable_single_step() directly.
Change arch_uprobe_*_step() to do nothing, and convert powerpc to use
ptrace helpers. This is equally wrong, powerpc needs the arch-specific
fixes.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/events')
| -rw-r--r-- | kernel/events/uprobes.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 5cc4e7e42e68..abbfd8440a6d 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -1432,12 +1432,10 @@ static struct uprobe *find_active_uprobe(unsigned long bp_vaddr, int *is_swbp) void __weak arch_uprobe_enable_step(struct arch_uprobe *arch) { - user_enable_single_step(current); } void __weak arch_uprobe_disable_step(struct arch_uprobe *arch) { - user_disable_single_step(current); } /* |