On 4/8/20 8:15 AM, Matthew Wilcox wrote: > On Wed, Apr 08, 2020 at 05:12:03PM +0200, Peter Zijlstra wrote: >> On Wed, Apr 08, 2020 at 08:01:00AM -0700, Randy Dunlap wrote: >>> Hi, >>> >>> On 4/8/20 4:59 AM, Christoph Hellwig wrote: >>>> diff --git a/mm/Kconfig b/mm/Kconfig >>>> index 36949a9425b8..614cc786b519 100644 >>>> --- a/mm/Kconfig >>>> +++ b/mm/Kconfig >>>> @@ -702,7 +702,7 @@ config ZSMALLOC >>>> >>>> config ZSMALLOC_PGTABLE_MAPPING >>>> bool "Use page table mapping to access object in zsmalloc" >>>> - depends on ZSMALLOC >>>> + depends on ZSMALLOC=y >>> >>> It's a bool so this shouldn't matter... not needed. >> >> My mm/Kconfig has: >> >> config ZSMALLOC >> tristate "Memory allocator for compressed pages" >> depends on MMU >> >> which I think means it can be modular, no? ack. I misread it. > Randy means that ZSMALLOC_PGTABLE_MAPPING is a bool, so I think hch's patch > is wrong ... if ZSMALLOC is 'm' then ZSMALLOC_PGTABLE_MAPPING would become > 'n' instead of 'y'. sigh, I wish that I had meant that. :) thanks. -- ~Randy