RFC CONFIG_STABLE to switch off development checks

[email protected] linux-mm lkml 1 version May 31, 2007 In review

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v1 RFC Latest May 31, 20074 patches 35 repliesIn review

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#	Subject and files	Size	Replies
1/4	CONFIG_STABLE: Define it`init/Kconfig`	+7 -0	25 replies
2/4	CONFIG_STABLE: Switch off kmalloc(0) tests in slab allocators`include/linux/slub_def.h` `mm/slab.c`	+4 -0	2 replies
3/4	CONFIG_STABLE: Switch off SLUB banner`mm/slub.c`	+2 -1	0 replies
4/4	CONFIG_STABLE: SLUB: Prefer object corruption over failure`mm/slub.c`	+24 -5	0 replies

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Cover letter [RFC 0/4] CONFIG_STABLE to switch off development checks

A while back we talked about having the capability of switching off checks like the one for kmalloc(0) for stable kernel releases. This is a first stab at such functionality. It adds #ifdef CONFIG_STABLE for now. Maybe we can come up with some better way to handle it later. There should alsol be some way to set CONFIG_STABLE from the Makefile.

CONFIG_STABLE switches off

- kmalloc(0) check in both slab allocators
- SLUB banner
- Makes SLUB tolerate object corruption like SLAB (not sure if we really want to go down this route. See patch)

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