Btrfs: clean up find_free_extent

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I've replaced the strange looping constructs with a list_for_each_entry on
space_info->block_groups.  If we have a hint we just jump into the loop with
the block group and start looking for space.  If we don't find anything we
start at the beginning and start looking.  We never come out of the loop with a
ref on the block_group _unless_ we found space to use, then we drop it after we
set the trans block_group.

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

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Josef Bacik 2009-04-03 10:14:19 -04:00 • committed by Chris Mason

parent 70cb074345

commit 2552d17e32

1 changed files with 91 additions and 165 deletions

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258

fs/btrfs/extent-tree.c

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