Linux-mm Archive on lore.kernel.org
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* mm: migrate: Fix page migration stalls for blkdev pages
@ 2018-12-11 17:21 Jan Kara
  2018-12-11 17:21 ` [PATCH 1/6] mm: migration: Factor out code to compute expected number of page references Jan Kara
                   ` (5 more replies)
  0 siblings, 6 replies; 21+ messages in thread
From: Jan Kara @ 2018-12-11 17:21 UTC (permalink / raw)
  To: linux-mm; +Cc: mhocko, mgorman, Jan Kara

Hello,

this patch set deals with page migration stalls that were reported by our
customer due to block device page that had buffer head that was in bh LRU
cache.

The patch set modifies page migration code so that buffer heads are completely
handled inside buffer_migrate_page() and then provides new migration helper
for pages with buffer heads that is safe to use even for block device pages
and that also deals with bh lrus.

								Honza

^ permalink raw reply	[flat|nested] 21+ messages in thread

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Thread overview: 21+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-12-11 17:21 mm: migrate: Fix page migration stalls for blkdev pages Jan Kara
2018-12-11 17:21 ` [PATCH 1/6] mm: migration: Factor out code to compute expected number of page references Jan Kara
2018-12-13 13:05   ` Mel Gorman
2018-12-14 15:10   ` Mel Gorman
2018-12-14 15:53     ` Jan Kara
2018-12-14 16:24       ` Mel Gorman
2018-12-17 13:11         ` Jan Kara
2018-12-11 17:21 ` [PATCH 2/6] mm: migrate: Lock buffers before migrate_page_move_mapping() Jan Kara
2018-12-13 14:19   ` Mel Gorman
2018-12-11 17:21 ` [PATCH 3/6] mm: migrate: Move migrate_page_lock_buffers() Jan Kara
2018-12-13 14:57   ` Mel Gorman
2018-12-11 17:21 ` [PATCH 4/6] mm: migrate: Provide buffer_migrate_page_norefs() Jan Kara
2018-12-13 15:34   ` Mel Gorman
2018-12-14  4:53   ` Andrew Morton
2018-12-14  9:26     ` Jan Kara
2018-12-11 17:21 ` [PATCH 5/6] blkdev: Avoid migration stalls for blkdev pages Jan Kara
2018-12-13 15:35   ` Mel Gorman
2018-12-11 17:21 ` [PATCH 6/6] mm: migrate: Drop unused argument of migrate_page_move_mapping() Jan Kara
2018-12-13 15:35   ` Mel Gorman
2018-12-13 16:17     ` Jan Kara
2018-12-17 13:17       ` Jan Kara

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