tree 52d23d374ae31faac4d63b031387e532f577b895
parent 7a9e9987681198c56ac7f165725ca322d7a196e1
author Stefan Behrens <sbehrens@giantdisaster.de> 1351869261 +0100
committer Josef Bacik <jbacik@fusionio.com> 1355350531 -0500

Btrfs: in scrub repair code, optimize the reading of mirrors

In case that disk blocks need to be repaired (rewritten), the
current code at first (for simplicity reasons) reads all alternate
mirrors in the first step, afterwards selects the best one in a
second step. This is now changed to read one alternate mirror
after the other and to leave the loop early when a perfect mirror
is found.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>