[PATCH] ext3 block allocator cleanup
This just reorganizes some ghastly goto-and-retry-spaghetti in the core of the ext3 block allocator. I wrote this ages ago in preparation for fixing the find_next_usable_block() CPU pigginess problem, but that proved to be quite nontrivial. The patch has been in -mm for a long time and Martin has recently confirmed that it introduces no performance regression in SDET and kernbench.
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