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由 Matt Mackall 提交于
We weren't merging freed blocks at the beginning of the free list. Fixing this showed a 2.5% efficiency improvement in a userspace test harness. Signed-off-by: NMatt Mackall <mpm@selenic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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