From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 29 Dec 2008 15:03:40 +0000 (+0100)
Subject: relayfs: replace BUG() with WARN_ON() in relay_late_setup_files()
X-Git-Tag: v2.6.30-rc1~2^2~202
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a51cffbd10886c0557677dd916c090097c691ef;p=pandora-kernel.git

relayfs: replace BUG() with WARN_ON() in relay_late_setup_files()

Impact: turn boot crash into boot warning

This BUG() can trigger:

[   16.684131] initcall fail_page_alloc_debugfs+0x0/0xc1 returned 0 after 0 usecs
[   16.692035] calling  kmemtrace_setup_late+0x0/0xd5 @ 1
[   16.700087] relay_late_setup_files: CPU 1 has no buffer, it must have!
[   16.704044] ------------[ cut here ]------------
[   16.708030] kernel BUG at kernel/relay.c:680!
[   16.708030] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC
[   16.708030] last sysfs file:
[   16.708030]
[   16.708030] Pid: 1, comm: swapper Not tainted (2.6.28-tip-03903-g9a39f58-dirty #13207) System Product Name
[   16.708030] EIP: 0060:[<c01604ae>] EFLAGS: 00010246 CPU: 1
[   16.708030] EIP is at relay_late_setup_files+0x8c/0x176

Reduce it to a more reportable WARN_ONCE().

Signed-off-by: Ingo Molnar <mingo@elte.hu>
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