9c6e4af3b933566
author David Woodhouse <dwmw2@infradead.org> 1216908583 -0400
committer Chris Mason <chris.mason@oracle.com> 1222355045 -0400

Btrfs: Use assert_spin_locked instead of spin_trylock

On UP systems spin_trylock always succeeds

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