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Re: SLUB sysfs support

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From: Al Viro <viro@...>
To: Christoph Lameter <clameter@...>
Cc: Steven Rostedt <rostedt@...>, Peter Zijlstra <a.p.zijlstra@...>, LKML <linux-kernel@...>, Rafael J. Wysocki <rjw@...>
Subject: Re: SLUB sysfs support
Date: Thursday, December 27, 2007 - 7:58 pm

On Thu, Dec 27, 2007 at 03:53:43PM -0800, Christoph Lameter wrote:

What the hell do you need that for?  You have an obvious moment when
/sys/kernel/slab/cache_name -> <whatever> should be gone - it's when
you remove the slab called cache_name.  And at that point you don't
need to iterate over anything - you have the exact name, for fsck sake...

Why would you want these symlinks to stick around for longer than that?
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Messages in current thread:
Major regression on hackbench with SLUB, Steven Rostedt, (Fri Dec 7, 1:50 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Tue Dec 11, 10:33 am)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Thu Dec 13, 6:22 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 14, 12:24 am)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Fri Dec 21, 8:09 am)
Re: Major regression on hackbench with SLUB (more numbers), Pekka Enberg, (Fri Dec 21, 1:44 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 6:22 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 6:37 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Fri Dec 21, 6:56 pm)
Re: Major regression on hackbench with SLUB (more numbers), Steven Rostedt, (Fri Dec 21, 6:52 pm)
Re: Major regression on hackbench with SLUB (more numbers), Linus Torvalds, (Fri Dec 21, 6:51 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Fri Dec 21, 7:17 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 7:54 pm)
Re: Major regression on hackbench with SLUB (more numbers), Chuck Ebbert, (Fri Dec 21, 8:02 pm)
Re: Major regression on hackbench with SLUB (more numbers), Pekka Enberg, (Fri Dec 21, 7:40 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 12:18 pm)
Re: Major regression on hackbench with SLUB (more numbers), Linus Torvalds, (Fri Dec 21, 12:44 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 6:11 pm)
Re: Major regression on hackbench with SLUB (more numbers), Linus Torvalds, (Fri Dec 21, 6:49 pm)
Re: Major regression on hackbench with SLUB (more numbers), Peter Zijlstra, (Fri Dec 21, 6:16 pm)
Re: Major regression on hackbench with SLUB (more numbers), Peter Zijlstra, (Fri Dec 21, 6:17 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 6:27 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Fri Dec 21, 6:54 pm)
Re: Major regression on hackbench with SLUB (more numbers), Andi Kleen, (Fri Dec 21, 8:28 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Sat Dec 22, 6:03 am)
Re: Major regression on hackbench with SLUB (more numbers), Linus Torvalds, (Sat Dec 22, 2:01 pm)
slabtop replacement was Re: Major regression on hackbench wi..., Andi Kleen, (Sat Dec 22, 3:46 pm)
Re: slabtop replacement was Re: Major regression on hackbenc..., Karol Swietlicki, (Sat Dec 22, 7:28 pm)
Re: slabtop replacement was Re: Major regression on hackbenc..., Karol Swietlicki, (Sat Dec 29, 2:08 pm)
Re: Major regression on hackbench with SLUB (more numbers), Theodore Tso, (Sat Dec 22, 3:25 pm)
Re: Major regression on hackbench with SLUB (more numbers), Linus Torvalds, (Sat Dec 22, 5:00 pm)
Re: Major regression on hackbench with SLUB (more numbers), Willy Tarreau, (Sat Dec 22, 6:10 pm)
Re: Major regression on hackbench with SLUB (more numbers), Steven Rostedt, (Sat Dec 22, 8:59 pm)
Re: Major regression on hackbench with SLUB (more numbers), Willy Tarreau, (Sun Dec 23, 1:12 am)
Re: Major regression on hackbench with SLUB (more numbers), Andi Kleen, (Sun Dec 23, 10:15 am)
Re: Major regression on hackbench with SLUB (more numbers), Theodore Tso, (Sun Dec 23, 11:45 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Mon Dec 24, 3:21 pm)
Re: Major regression on hackbench with SLUB (more numbers), Theodore Tso, (Mon Dec 24, 7:37 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Wed Dec 26, 5:31 pm)
Re: Major regression on hackbench with SLUB (more numbers), Al Viro, (Wed Dec 26, 6:16 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Fri Dec 28, 5:00 am)
Re: Major regression on hackbench with SLUB (more numbers), Steven Rostedt, (Fri Dec 28, 10:52 am)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Thu Dec 27, 1:51 am)
SLUB sysfs support, Christoph Lameter, (Thu Dec 27, 4:28 pm)
Re: SLUB sysfs support, Al Viro, (Thu Dec 27, 6:59 pm)
Re: SLUB sysfs support, Christoph Lameter, (Thu Dec 27, 7:22 pm)
Re: SLUB sysfs support, Al Viro, (Thu Dec 27, 7:54 pm)
Re: SLUB sysfs support, Christoph Lameter, (Thu Dec 27, 7:53 pm)
Re: SLUB sysfs support, Al Viro, (Thu Dec 27, 7:58 pm)
Re: SLUB sysfs support, Christoph Lameter, (Thu Dec 27, 8:02 pm)
Re: SLUB sysfs support, Al Viro, (Thu Dec 27, 8:45 pm)
Re: SLUB sysfs support, Christoph Lameter, (Thu Dec 27, 10:19 pm)
Re: SLUB sysfs support, Al Viro, (Thu Dec 27, 11:26 pm)
Re: SLUB sysfs support, Christoph Lameter, (Wed Jan 2, 4:25 pm)
Re: Major regression on hackbench with SLUB (more numbers), Andi Kleen, (Mon Dec 24, 11:34 pm)
Re: Major regression on hackbench with SLUB (more numbers), Theodore Tso, (Tue Jan 1, 8:47 am)
[patch] slub: provide /proc/slabinfo, Ingo Molnar, (Tue Jan 1, 12:23 pm)
Re: [patch] slub: provide /proc/slabinfo, Arjan van de Ven, (Fri Jan 4, 8:27 pm)
Re: [patch] slub: provide /proc/slabinfo, Linus Torvalds, (Fri Jan 4, 8:49 pm)
Re: Major regression on hackbench with SLUB (more numbers), Andi Kleen, (Tue Jan 1, 11:19 am)
Re: Major regression on hackbench with SLUB (more numbers), Al Viro, (Sat Dec 22, 5:50 pm)
Re: Major regression on hackbench with SLUB (more numbers), Al Viro, (Sat Dec 22, 7:29 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Sat Dec 22, 3:09 pm)
Re: Major regression on hackbench with SLUB (more numbers), Jason L Tibbitts III, (Sat Dec 22, 6:52 pm)
Re: Major regression on hackbench with SLUB (more numbers), Alessandro Suardi, (Sun Dec 23, 11:59 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Sat Dec 22, 3:29 pm)
Re: Major regression on hackbench with SLUB (more numbers), Andi Kleen, (Sat Dec 22, 8:37 am)
Re: Major regression on hackbench with SLUB (more numbers), Alexey Dobriyan, (Sat Dec 22, 9:01 am)
Re: Major regression on hackbench with SLUB (more numbers), Pekka Enberg, (Sat Dec 22, 8:51 am)
Re: Major regression on hackbench with SLUB (more numbers), Andi Kleen, (Sat Dec 22, 8:54 am)
Re: Major regression on hackbench with SLUB (more numbers), Pekka Enberg, (Sat Dec 22, 9:27 am)
Re: Major regression on hackbench with SLUB (more numbers), Matt Mackall, (Fri Dec 21, 10:19 pm)
Re: Major regression on hackbench with SLUB (more numbers), Andi Kleen, (Fri Dec 21, 10:44 pm)
Re: Major regression on hackbench with SLUB (more numbers), Chuck Ebbert, (Fri Dec 21, 8:33 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 7:51 pm)
Re: Major regression on hackbench with SLUB (more numbers), Andrew Morton, (Fri Dec 21, 7:27 pm)
Re: Major regression on hackbench with SLUB (more numbers), David Miller, (Fri Dec 21, 7:20 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Sat Dec 22, 5:45 am)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Mon Dec 24, 3:24 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Fri Dec 21, 8:26 am)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 12:26 pm)
Re: Major regression on hackbench with SLUB (more numbers), Ingo Molnar, (Fri Dec 21, 12:33 pm)
Re: Major regression on hackbench with SLUB (more numbers), Christoph Lameter, (Fri Dec 21, 5:56 pm)
Re: Major regression on hackbench with SLUB (more numbers), Steven Rostedt, (Fri Dec 14, 2:15 am)
Re: Major regression on hackbench with SLUB, Linus Torvalds, (Fri Dec 7, 1:59 pm)
Re: Major regression on hackbench with SLUB, Linus Torvalds, (Fri Dec 7, 2:36 pm)
Re: Major regression on hackbench with SLUB, Christoph Lameter, (Thu Dec 13, 6:11 pm)
Re: Major regression on hackbench with SLUB, Steven Rostedt, (Sat Dec 8, 8:28 pm)
Re: Major regression on hackbench with SLUB, Steven Rostedt, (Sat Dec 8, 6:16 pm)
Re: Major regression on hackbench with SLUB, Björn, (Mon Dec 10, 3:38 am)
Re: Major regression on hackbench with SLUB, Steven Rostedt, (Mon Dec 10, 10:00 am)
Re: Major regression on hackbench with SLUB, Steven Rostedt, (Fri Dec 7, 2:58 pm)
Re: Major regression on hackbench with SLUB, Ingo Molnar, (Fri Dec 7, 1:55 pm)