From: Keshavamurthy Anil S <anil.s.keshavamurthy@intel.com>
Date: Tue, 22 Nov 2005 22:15:49 +0000 (-0800)
Subject: [IA64] Remove getting break_num by decoding instruction
X-Git-Tag: v2.6.15-rc4~4^2~14^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a94bcfd2a18edcf368b3128c7df07b58e529932;p=pandora-kernel.git

[IA64] Remove getting break_num by decoding instruction

break.b always sets cr.iim to 0 and the current code tries to
get the break_num by decoding instruction. However, their
seems to be a race condition while reading the regs->cr_iip,
as on other cpu the break.b at regs->cr_iip might have been
replaced with the original instruction as a result of
unregister_kprobe() and hence decoding instruction to
obtain break_num will result in wrong value in this case.

Also includes changes to kprobes.c which now has to handle
break number zero.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---

Reading git-diff-tree failed