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Filename	Latest commit message	Latest commit date
Mel Gorman a6bc32b899 mm: compaction: introduce sync-light migration for use by compaction ... This patch adds a lightweight sync migrate operation MIGRATE_SYNC_LIGHT mode that avoids writing back pages to backing storage. Async compaction maps to MIGRATE_ASYNC while sync compaction maps to MIGRATE_SYNC_LIGHT. For other migrate_pages users such as memory hotplug, MIGRATE_SYNC is used. This avoids sync compaction stalling for an excessive length of time, particularly when copying files to a USB stick where there might be a large number of dirty pages backed by a filesystem that does not support ->writepages. [[email protected]: This patch is heavily based on Andrea's work] [[email protected]: fix fs/nfs/write.c build] [[email protected]: fix fs/btrfs/disk-io.c build] Signed-off-by: Mel Gorman <[email protected]> Reviewed-by: Rik van Riel <[email protected]> Cc: Andrea Arcangeli <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Dave Jones <[email protected]> Cc: Jan Kara <[email protected]> Cc: Andy Isaacson <[email protected]> Cc: Nai Xia <[email protected]> Cc: Johannes Weiner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>		2012-01-12 20:13:09 -08:00
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inode.c	mm: compaction: introduce sync-light migration for use by compaction	2012-01-12 20:13:09 -08:00
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