Btrfs: use kmalloc instead of stack for backref_ctx
authorAlexander Block <ablock84@googlemail.com>
Sat, 28 Jul 2012 10:44:34 +0000 (12:44 +0200)
committerChris Mason <chris.mason@fusionio.com>
Mon, 1 Oct 2012 19:18:49 +0000 (15:18 -0400)
Make sure to never get in trouble due to the backref_ctx
which was on the stack before.

Commit is a result of Arne's review.

Signed-off-by: Alexander Block <ablock84@googlemail.com>

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