Marko Mäkelä 93522bc9a9 MDEV-24917 Page cleaner wrongly remains idle ...

commit a993310593 (MDEV-24537)
introduced the regression that the page cleaner will keep sleeping
even if there is work to do.

innodb_max_dirty_pages_pct_update(): Always wake up the page cleaner
on any SET GLOBAL innodb_max_dirty_pages_pct= assignment.

buf_flush_page_cleaner(): If innodb_max_dirty_pages_pct is nonzero,
consult only that parameter when determining whether there is work
to do. Else, consult innodb_max_dirty_pages.

2021-02-18 18:20:50 +02:00

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