On Thu, Feb 06, 2020 at 03:29:57PM +0000, Johannes Thumshirn wrote: > On 06/02/2020 15:58, Christoph Hellwig wrote: > > Also I just noticed don't even need the kmap/kunmap at all given that the > > block device mapping is never in highmem. > > > > This potentially touches more places, I'll cover that in a dedicated > patchset. Are the kmap/kunmaps anywhere on the buffer_head call paths? I can't find it anywhere, and given that the mapping does not contain highmem pages we could rather avoid adding it from the beginning.
