Re: [patch -mm] fix SLOB on x64

[Ingo Molnar]

* Ed Tomlinson <edt@xxxxxx> wrote:

> On Sunday 11 December 2005 09:12, Ingo Molnar wrote:
> > this patch fixes 32-bitness bugs in mm/slob.c. Successfully booted x64 
> > with SLOB enabled. (i have switched the PREEMPT_RT feature to use the 
> > SLOB allocator exclusively, so it must work on all platforms)
> 
> Its a good idea to get this working everywhere.  Why have you switched 
> to use SLOB exclusively?

because the SLAB hacks were getting ugly, and i gave up on it during the 
2.6.15-rc5 merge. (The SLAB code has lots of irqs-off / per-cpu and 
non-preempt assumptions integrated, which were a pain to sort out.)

We'll eventually do a cleaner conversion of SLAB to PREEMPT_RT, but for 
now the SLOB is turned on exclusively if PREEMPT_RT. (in other 
preemption modes it's optionally selectable if EMBEDDED is enabled)

	Ingo
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