From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Mon, 29 Sep 2008 18:18:34 +0000 (+0200)
Subject: tracing/ftrace: change the type of the print_line callback
X-Git-Tag: v2.6.28-rc1~78^2~35
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2c4f035f6c3e8fda661eb6105aa51ef07aa71607;p=pandora-kernel.git

tracing/ftrace: change the type of the print_line callback

We need a kind of disambiguation when a print_line callback
returns 0.

_There is not enough space to print all the entry.
 Please flush the seq and retry.
_I can't handle this type of entry

This patch changes the type of this callback for better information.

Also some changes have been made in this V2.

_ Only relay to default functions after the print_line callback fails.
_ This patch doesn't fix the issue with the broken pipe (see patch 2/4 for that)

Some things are still in discussion:

_ Find better names for the enum print_line_t values
_ Change the type of print_trace_line into boolean.

Patches to change that can be sent later.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Pekka Paalanen <pq@iki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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