Chris Mason d5550c6315 Btrfs: don't lock bits in the extent tree during writepage
At writepage time, we have the page locked and we have the
extent_map entry for this extent pinned in the extent_map tree.
So, the page can't go away and its mapping can't change.

There is no need for the extra extent_state lock bits during writepage.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2009-09-11 13:31:06 -04:00
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