From: Oleg Nesterov <oleg@redhat.com>
Date: Tue, 26 Nov 2013 00:35:25 +0000 (+0900)
Subject: uprobes: Allocate ->utask before handler_chain() for tracing handlers
X-Git-Tag: v3.14-rc1~133^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=72fd293aa9ae8f4f48d6042be43fe81551c639f2;p=pandora-kernel.git

uprobes: Allocate ->utask before handler_chain() for tracing handlers

uprobe_trace_print() and uprobe_perf_print() need to pass the additional
info to call_fetch() methods, currently there is no simple way to do this.

current->utask looks like a natural place to hold this info, but we need
to allocate it before handler_chain().

This is a bit unfortunate, perhaps we will find a better solution later,
but this is simple and should work right now.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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