Re: [PATCH 14/14] fs,xfs: Allow kswapd to writeback pages

[Christoph Hellwig]

I don't see a patch in this set which refuses writeback from the memcg
context, which we identified as having large stack footprint in hte
discussion of the last patch set.

Meanwhile I've submitted a patch to xfs to allow reclaim from kswapd,
and just prevent it from direct and memcg reclaim.

Btw, it might be worth to also allow kswap to all writeout on ext4,
but doing that will be a bit more complicated than the btrfs and xfs
variants as the code is rather convoluted.

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