On Mon, Apr 16 2018 at 8:38am -0400, Vlastimil Babka <vbabka@xxxxxxx> wrote: > On 04/13/2018 05:10 PM, Mike Snitzer wrote: > > On Fri, Apr 13 2018 at 5:22am -0400, > > Vlastimil Babka <vbabka@xxxxxxx> wrote: > >> > >> Would this perhaps be a good LSF/MM discussion topic? Mikulas, are you > >> attending, or anyone else that can vouch for your usecase? > > > > Any further discussion on SLAB_MINIMIZE_WASTE should continue on list. > > > > Mikulas won't be at LSF/MM. But I included Mikulas' dm-bufio changes > > that no longer depend on this proposed SLAB_MINIMIZE_WASTE (as part of > > the 4.17 merge window). > > Can you or Mikulas briefly summarize how the dependency is avoided, and > whether if (something like) SLAB_MINIMIZE_WASTE were implemented, the > dm-bufio code would happily switch to it, or not? git log eeb67a0ba04df^..45354f1eb67224669a1 -- drivers/md/dm-bufio.c But the most signficant commit relative to SLAB_MINIMIZE_WASTE is: 359dbf19ab524652a2208a2a2cddccec2eede2ad ("dm bufio: use slab cache for dm_buffer structure allocations") So no, I don't see why dm-bufio would need to switch to SLAB_MINIMIZE_WASTE if it were introduced in the future. Mike -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel