From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 14 Jan 2011 21:26:18 +0000 (-0800)
Subject: Turn d_set_d_op() BUG_ON() into WARN_ON_ONCE()
X-Git-Tag: v2.6.38-rc1~49
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f7f7caab259026234277b659485d22c1dcb1ab4;p=pandora-kernel.git

Turn d_set_d_op() BUG_ON() into WARN_ON_ONCE()

It's indicative of a real problem, and it actually triggers with
autofs4, but the BUG_ON() is excessive.  The autofs4 case is being fixed
(to only set d_op in the ->lookup method) but not merged yet.  In the
meantime this gets the code limping along.

Reported-by: Alex Elder <aelder@sgi.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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