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mm: working set fixes

Michal Hocko linux-mm lkml stable 1 version In review

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  1. v1 Latest3 patches 5 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/3mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page()include/linux/swap.h mm/filemap.c mm/workingset.c+49 -492 replies
2/3mm: filemap: don't plant shadow entries without radix tree nodeinclude/linux/radix-tree.h lib/radix-tree.c mm/filemap.c+39 -262 replies
3/3mm: filemap: fix mapping->nrpages double accounting in fusemm/filemap.c+0 -11 reply

Reviews trailers per patch

1 of 3 patches has a Reviewed-by or Acked-by.

PatchMiklos SzerediLinus TorvaldsJan Kara
1/3Debugged-by
2/3Reported-and-tested-by Reported-and-tested-by R-b R-b
3/3

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes. Scroll the table sideways for all 3 reviewers.

Read the v1 thread

Cover letter [Stable 4.4 - NEEDS REVIEW - 0/3] mm: working set fixes

Hi Johannes,
this is my attempt to backport your 22f2ac51b6d6 ("mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page()") which has been marked for 3.15+ stable trees. There are 2 follow up fixes for this patch d3798ae8c6f3 ("mm: filemap: don't plant shadow entries without radix tree node") and 3ddf40e8c319 ("mm: filemap: fix mapping->nrpages double accounting in fuse") which are backported here as well.

This is not an area I would feel really strongly so I would highly appreciate if you could review these backports. The first two needed quite some tweaking.

Thanks!

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