linux-kernel - [PATCH v3 17/22] kmsg_dumper: Introduce a new 'SOFT' dump reason

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Message-ID: <20101214213026.17022.26883.stgit@mike.mtv.corp.google.com>
Date:	Tue, 14 Dec 2010 13:30:27 -0800
From:	Mike Waychison <mikew@...gle.com>
To:	simon.kagstrom@...insight.net, davem@...emloft.net,
	nhorman@...driver.com, Matt Mackall <mpm@...enic.com>
Cc:	adurbin@...gle.com, linux-kernel@...r.kernel.org,
	chavey@...gle.com, Greg KH <greg@...ah.com>,
	netdev@...r.kernel.org,
	Américo Wang <xiyou.wangcong@...il.com>,
	akpm@...ux-foundation.org, linux-api@...r.kernel.org
Subject: [PATCH v3 17/22] kmsg_dumper: Introduce a new 'SOFT' dump reason

It is a useful to be able to exercise kmsg_dumper implementations without
requiring a kernel oops or panic.  This commit adds a new reason called
KMSG_DUMP_SOFT, which signifies that the system isn't really going down.

This logic is used in a later commit that introduces the netoops driver.

Signed-off-by: Mike Waychison <mikew@...gle.com>
---
Notes:

It is also possible that we not introduce KMSG_DUMP_SOFT, and simply overload
the existing KMSG_DUMP_OOPS reason, but I figured that this would be cleaner.
---
 include/linux/kmsg_dump.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/linux/kmsg_dump.h b/include/linux/kmsg_dump.h
index a229acc..0abc2d7 100644
--- a/include/linux/kmsg_dump.h
+++ b/include/linux/kmsg_dump.h
@@ -20,6 +20,7 @@ enum kmsg_dump_reason {
 	KMSG_DUMP_OOPS,
 	KMSG_DUMP_PANIC,
 	KMSG_DUMP_KEXEC,
+	KMSG_DUMP_SOFT,
 };
 
 /**

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