[PATCH 0/7] Fix UBI Block wrt. highmem

Miquel Raynal miquel.raynal at bootlin.com
Thu Aug 10 22:52:44 PDT 2023


Hi Richard,

richard at nod.at wrote on Thu, 10 Aug 2023 18:00:11 +0200:

> Patch 1 changes UBIblock to use a copy of scsi_kmap_atomic_sg()
> for sg list processing. This patch is meant for backporting to stable.
> It makes use of kmap_atomic() and a bounce buffer because MTD/UBI IO
> can sleep.
> 
> Patches 2 to 7 move scsi_kmap_atomic_sg() into lib/scatterlist.c,
> convert it to kmap_local(), convert all users to it and remove the
> bounce buffer from UBIblock again.

Both the idea and the implementation look nice, I don't feel skilled
enough for sending Reviewed-by here, but it seems okay at a first
glance.

Well done Richard :-)

Miquèl



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