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Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lockless

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From: Peter Zijlstra
Subject: Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lockless
Date: Wednesday, November 17, 2010 - 3:49 am

On Wed, 2010-11-17 at 14:05 +0800, Huang Ying wrote:

If you can make it use a lockless list thing that's fine.

I'm not sure Andrew's CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG makes much sense
for CONFIG_ARCH_HAVE_NMI=n though..

Anyway, make sure to consolidate net/rds/xlist.h and its users, having
two lockless lists is one too many.


But only if the platform has NMIs, otherwise its moot.
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Messages in current thread:
[PATCH -v4 0/2] Lockless memory allocator and list, Huang Ying, (Mon Nov 15, 5:53 pm)
[PATCH -v4 1/2] lib, Make gen_pool memory allocator lockless, Huang Ying, (Mon Nov 15, 5:53 pm)
[PATCH -v4 2/2] lib, Add lock-less NULL terminated single list, Huang Ying, (Mon Nov 15, 5:53 pm)
Re: [PATCH -v4 0/2] Lockless memory allocator and list, Peter Zijlstra, (Tue Nov 16, 4:49 am)
Re: [PATCH -v4 2/2] lib, Add lock-less NULL terminated sin ..., Peter Zijlstra, (Tue Nov 16, 4:50 am)
Re: [PATCH -v4 2/2] lib, Add lock-less NULL terminated sin ..., Linus Torvalds, (Tue Nov 16, 9:33 am)
Re: [PATCH -v4 0/2] Lockless memory allocator and list, Linus Torvalds, (Tue Nov 16, 9:38 am)
Re: [PATCH -v4 0/2] Lockless memory allocator and list, Peter Zijlstra, (Tue Nov 16, 11:04 am)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Andrew Morton, (Tue Nov 16, 2:50 pm)
Re: [PATCH -v4 0/2] Lockless memory allocator and list, Huang Ying, (Tue Nov 16, 6:03 pm)
Re: [PATCH -v4 0/2] Lockless memory allocator and list, Huang Ying, (Tue Nov 16, 6:45 pm)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Huang Ying, (Tue Nov 16, 7:18 pm)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Andrew Morton, (Tue Nov 16, 7:35 pm)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Huang Ying, (Tue Nov 16, 8:03 pm)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Andrew Morton, (Tue Nov 16, 8:57 pm)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Huang Ying, (Tue Nov 16, 11:05 pm)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Peter Zijlstra, (Wed Nov 17, 3:40 am)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Peter Zijlstra, (Wed Nov 17, 3:49 am)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., huang ying, (Wed Nov 17, 4:16 am)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Peter Zijlstra, (Wed Nov 17, 4:38 am)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., huang ying, (Wed Nov 17, 4:47 am)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Peter Zijlstra, (Wed Nov 17, 4:53 am)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Huang Ying, (Wed Nov 17, 6:14 pm)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Peter Zijlstra, (Thu Nov 18, 1:34 am)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Paul Mundt, (Thu Nov 18, 1:43 am)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Peter Zijlstra, (Thu Nov 18, 1:57 am)
Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lo ..., Paul Mundt, (Thu Nov 18, 2:03 am)