From: Oleg Nesterov <oleg@redhat.com>
Date: Sun, 28 Oct 2012 15:55:36 +0000 (+0100)
Subject: uprobes/powerpc: Do not use arch_uprobe_*_step() helpers
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~77^2~1^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=65b2c8f0e53347583168423de0f32227d8baf01b;p=pandora-kernel.git

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>
---

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