In other words, what is it that is supposed to increase the "inactive"
or decrease the "isolated" so that isolated > inactive becomes false?
See places that update the NR_ISOLATED_ANON and NR_ISOLATED_FILE
counters.
Many thanks for the advice.
So far as I understand, to come out of the loop, somehow NR_ISOLATED_*
has to be decremented. And the code that decrements it is called here:
mm/migrate.c migrate_pages() -> unmap_and_move()
In compaction.c, migrate_pages() is called only after returning from
isolate_migratepages().
So if it is looping inside isolate_migratepages() function, migrate_pages()
will not be called and hence there is no chance for NR_ISOLATED_*
to be decremented. Am I wrong?
Best regards
Iram
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