Re: [PATCH 1/5] mm, compaction: more robust check for scanners meeting

在 2015/1/19 18:05, Vlastimil Babka 写道: > Compaction should finish when the migration and free scanner meet, i.e. they > reach the same pageblock. Currently however, the test in compact_finished() > simply just compares the exact pfns, which may yield a false negative when the > free scanner positio

[PATCH 1/5] mm, compaction: more robust check for scanners meeting

Compaction should finish when the migration and free scanner meet, i.e. they reach the same pageblock. Currently however, the test in compact_finished() simply just compares the exact pfns, which may yield a false negative when the free scanner position is in the middle of a pageblock and the migra