Messages in this thread | | | Date | Wed, 05 Feb 2014 08:27:08 -0800 | From | Dave Hansen <> | Subject | Re: [PATCH 3/3] Kconfig: organize memory-related config options |
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On 02/05/2014 06:28 AM, Michal Hocko wrote: > On Thu 02-01-14 12:20:17, Dave Hansen wrote: >> This continues in a series of patches to clean up the >> configuration menus. I believe they've become really hard to >> navigate and there are some simple things we can do to make >> things easier to find. >> >> This creates a "Memory Options" menu and moves some things like >> swap and slab configuration under them. It also moves SLUB_DEBUG >> to the debugging menu. >> >> After this patch, the menu has the following options: >> >> [ ] Memory placement aware NUMA scheduler >> [*] Enable VM event counters for /proc/vmstat >> [ ] Disable heap randomization >> [*] Support for paging of anonymous memory (swap) >> Choose SLAB allocator (SLUB (Unqueued Allocator)) >> [*] SLUB per cpu partial cache >> [*] SLUB: attempt to use double-cmpxchg operations > > Is there any reason to keep them in init/Kconfig rather than > mm/Kconfig? It would sound like a logical place to have them all, no?
These options are the memory-related ones that fall under the "General setup" menu and the mm/Kconfig ones fall in to "Processor type and features". I've been hesitant to move these over to mm/Kconfig just because I don't want to put more stuff in the arch-specific menus.
You raise a good point, though, that there isn't a great logical separation about what should go where. Things like zram and KSM end up in "Processor type and features" when they're really pretty architecture-neutral.
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