Hi Hyeonggon On Mon, Feb 20, 2023 at 01:21:53PM +0000, Hyeonggon Yoo wrote: > [Maybe not the best time to send patch series, but just wanted to > get some early feedback from zsmalloc maintainers] > > The purpose of this series is to define own memory descriptor for zsmalloc, > instead of re-using various fields of struct page. This is a part of the > effort to reduce the size of struct page to unsigned long and enable > dynamic allocation of memory descriptors. > > While [1] outlines this ultimate objective, the current use of struct page > is highly interdependent, making it challenging to separately allocate > memory descriptors. > > Therefore, this series introduces new descriptor for zsmalloc, called > zsdesc. It overlays struct page for now, but will eventually be allocated > independently in the future. And apart from dynamic allocation of descriptors, > this is a nice cleanup. > > I have no strong opinion about its name. I was thinking about between > zsmem and zsdesc, and wanted to be consistent with struct ptdesc. > (which is AFAIK work in progress) I wanted to have the chance to take a look zsmalloc folio stuff but couldn't set up some time. :( Thanks for the good work, Hyeonggon! I will take a look once when I am available. Just FYI, Sergey was doing some changes in zsmalloc https://lore.kernel.org/linux-mm/20230223030451.543162-1-senozhatsky@xxxxxxxxxxxx/ I guess this patch would conflict with it so may need to rebase once they were merged. Anyway, Regardless of that, I will review this patch as soon as finishing urgent stuff. Thanks.
