From 42f15d77df8a7e8a2feb15041d5d30710ee7f951 Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Fri, 6 Feb 2009 11:35:57 -0500
Subject: [PATCH] Btrfs: Make sure dir is non-null before doing S_ISGID checks

The S_ISGID check in btrfs_new_inode caused an oops during subvol creation
because sometimes the dir is null.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
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