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Revision cb25c2ea6a79702ab7895b873c6c43e0d3bc3c72 authored by Josef Bacik on 11 May 2011, 16:17:34 UTC, committed by Josef Bacik on 23 May 2011, 17:03:10 UTC 
Btrfs: map the node block when looking for readahead targets
 
If we have particularly full nodes, we could call btrfs_node_blockptr up to 32
times, which is 32 pairs of kmap/kunmap, which _sucks_.  So go ahead and map the
extent buffer while we look for readahead targets.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
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