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mm: remove seemingly spurious reclaimability check from laptop_mode gating

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Commit 1d82de618d ("mm, vmscan: make kswapd reclaim in terms of
nodes") allowed laptop_mode=1 to start writing not just when the
priority drops to DEF_PRIORITY - 2 but also when the node is
unreclaimable.

That appears to be a spurious change in this patch as I doubt the series
was tested with laptop_mode, and neither is that particular change
mentioned in the changelog.  Remove it, it's still recent.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Johannes Weiner <[email protected]>
Acked-by: Hillf Danton <[email protected]>
Acked-by: Mel Gorman <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Cc: Jia He <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Johannes Weiner 2017-05-03 14:51:57 -07:00 • committed by Linus Torvalds
commit 047d72c30e
1 changed files with 1 additions and 1 deletions
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2
mm/vmscan.c
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@ -3285,7 +3285,7 @@ static int balance_pgdat(pg_data_t *pgdat, int order, int classzone_idx)
* If we're getting trouble reclaiming, start doing writepage
* even in laptop mode.
*/
if (sc.priority < DEF_PRIORITY - 2 || !pgdat_reclaimable(pgdat))
if (sc.priority < DEF_PRIORITY - 2)
sc.may_writepage = 1;
/* Call soft limit reclaim before calling shrink_node. */