xfs: untangle xfs_dialloc
authorChristoph Hellwig <hch@lst.de>
Mon, 31 Aug 2009 23:57:14 +0000 (20:57 -0300)
committerFelix Blyakher <felixb@sgi.com>
Tue, 1 Sep 2009 17:45:29 +0000 (12:45 -0500)
commit4254b0bbb1c0826b7443ffa593576696bc591aa2
treebf938f43d83c31a6aa87825e5fe0c2c2388d52d2
parent0b48db80ba689edfd96ed06c3124d6cf1146de3f
xfs: untangle xfs_dialloc

Clarify the control flow in xfs_dialloc.  Factor out a helper to go to the
next node from the current one and improve the control flow by expanding
composite if statements and using gotos.

The xfs_ialloc_next_rec helper is borrowed from Dave Chinners dynamic
allocation policy patches.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Felix Blyakher <felixb@sgi.com>
fs/xfs/xfs_ialloc.c