From: Eric Sandeen <sandeen@redhat.com>
Date: Thu, 31 Jan 2013 00:54:55 +0000 (+0000)
Subject: btrfs: handle null fs_info in btrfs_panic()
X-Git-Tag: v3.9-rc1~17^2~29^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aa43a17c21cf35329b1a495dd6876798dd8b016b;p=pandora-kernel.git

btrfs: handle null fs_info in btrfs_panic()

At least backref_tree_panic() can apparently pass
in a null fs_info, so handle that in __btrfs_panic
to get the message out on the console.

The btrfs_panic macro also uses fs_info, but that's
largely pointless; it's testing to see if
BTRFS_MOUNT_PANIC_ON_FATAL_ERROR is not set.
But if it *were* set, __btrfs_panic() would have,
well, paniced and we wouldn't be here, testing it!
So just BUG() at this point.

And since we only use fs_info once now, just use it
directly.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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