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Btrfs: avoid unnecessary bitmap search for cluster setup
authorLi Zefan <lizf@cn.fujitsu.com>
Sun, 20 Nov 2011 12:33:38 +0000 (07:33 -0500)
committerChris Mason <chris.mason@oracle.com>
Sun, 20 Nov 2011 12:42:15 +0000 (07:42 -0500)
commit52621cb6ed0e0e14358bb317bda7cd5fbd5c2a27
tree5b4bc4c08c9f50e97779fcf527b1a8c7780a9e88tree
parent0f0fbf1d0e188d129756e9508090af4bdbfde00bcommit | diff
Btrfs: avoid unnecessary bitmap search for cluster setup

setup_cluster_no_bitmap() searches all the extents and bitmaps starting
from offset. Therefore if it returns -ENOSPC, all the bitmaps starting
from offset are in the bitmaps list, so it's sufficient to search from
this list in setup_cluser_bitmap().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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