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tmpfs: Make tmpfs scalable with percpu_counter for used blocks
Hello. The idea is good. :) On Fri, Jun 18, 2010 at 8:56 AM, Tim Chen <tim.c.chen(a)> wrote: The current implementation of tmpfs is not scalable. We found that stat_lock is contended by multiple threads when we need to get a new page, leading to useless spinning inside this spin lock. ... 17 Jun 2010 22:17
transhuge-memcg: some fixes (Re: Transparent Hugepage Support #25)
On Wed, Jun 02, 2010 at 02:44:38PM +0900, Daisuke Nishimura wrote: These are trial patches to fix the problem(based on THP-25). [1/2] is a simple bug fix, and can be folded into "memcg compound(commit d16259c1 at the". [2/2] is a main patch. ... 18 Jun 2010 01:33
[PATCH v3 1/2] tmpfs: Add accurate compare function to percpu_counter library
Add percpu_counter_compare that allows for a quick but accurate comparison of percpu_counter with a given value. A rough count is provided by the count field in percpu_counter structure, without accounting for the other values stored in individual cpu counters. The actual count is a sum of count and the cpu co... 17 Jun 2010 21:11
[PATCH v3 0/2] tmpfs: Improve tmpfs scalability
This patch series helps to resolve scalability problem for tmpfs. With these patches, Aim7 fserver throughput for tmpfs improved by 270% on a 4 socket, 32 cores NHM-EX system. In current implementation of tmpfs, whenever we get a new page, stat_lock in shmem_sb_info needs to be acquired. This causes a lot of ... 17 Jun 2010 21:11
Staging: comedi: fix code warnings in adl_pci9111.c
On Wed, Jun 16, 2010 at 07:30:44PM +0100, John Sheehan wrote: From: John Sheehan <john.d.sheehan(a)> fix some warnings in adl_pci9111.c reported by tool -printk() should include KERN_ facility level -no space before tabs Signed-off-by: John Sheehan <john.d.sheehan(a) 17 Jun 2010 20:06
Staging: Commedi: Fixed some warnings reported by tool
On Thu, Jun 17, 2010 at 10:00:11AM +0300, Matti Lammi wrote: Fixed a few "line over 80 characters" warnings. One of those lines were an actual code line and I don't know if my corresction is sufficent with that part. This is my third patch. Signed-off-by: Matti Lammi <mattij.lammi(a)> --- ... 17 Jun 2010 20:06
staging:comedi: Fixed coding conventions on `adl_pci9111.c'
On Mon, Jun 14, 2010 at 11:04:51AM +0300, Henri H´┐Żkkinen wrote: Cleaned up and fixed coding convention issues as reported by on the file `drivers/adl_pci9111.c' as well as other minor changes for consistency and clarity. For some reason, parts of this patch no longer apply. Can you redo it a... 17 Jun 2010 20:06
[PATCH] DRM / radeon / KMS: Fix hibernation regression related to radeon PM (was: Re: [Regression, post-2.6.34] Hibernation broken on machines with radeon/KMS and r300)
From: Rafael J. Wysocki <rjw(a)> There is a regression from 2.6.34 related to the recent radeon power management changes, caused by attempting to cancel a delayed work item that's never been scheduled. However, the code as is has some other issues potentially leading to visible problems. First, the mutex... 17 Jun 2010 20:06
[GIT PULL linux-next] tegra
Hello Stephen, Can you please pull the following into linux-next? git:// for-next This tree adds support for the Nvidia Tegra ARM SOCs. It's received review on linux-arm-kernel. Thanks, Erik Gilling -- To unsubscribe from this list: send the line "unsubscribe ... 17 Jun 2010 18:59
x86: clear XD_DISABLED flag on Intel to regain NX
On 06/17/2010 03:13 PM, Kees Cook wrote: This will clear the MSR_IA32_MISC_ENABLE_XD_DISABLE bit so that NX cannot be inappropriately controlled by the BIOS on Intel CPUs. If NX actually needs to be disabled, "noexec=off" can be used. Signed-off-by: Kees Cook <kees.cook(a)> --- arch/x... 19 Jun 2010 14:34
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