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[PATCH-rt 1/1] softirqs: add preempt_check_resched() in ksoftirqd()
In its current preempt-rt kernel, ksoftirq() includes a series of primitives related with kernel preemption and irq on/off, in the following order: preempt_disable() ... (1) local_irq_disable() ... (2) __preempt_enable_no_resched() ... (3) local_irq_enable() ... (4) A problem arises if a process is awakene... 11 Nov 2009 00:08
SATA NCQ - blessing for throughput, curse for latency?
Hi, Native Command Queuing is in short about maximizing disk performance and minimizing head movement by optimizing the order of commands execution. So it's rather natural thinking that using it is better than having it turned off. Does this apply to desktop users? I am not sure. Recently after buying PCI-E cont... 12 Nov 2009 04:00
[GIT PULL] ext4 fixes
Hi Linus, Please pull from: git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git for_linus to grab the following regression fixes for v2.6.32. Thanks!! - Ted Aneesh Kumar K.V (1): ext4: discard preallocation when restarting... 10 Nov 2009 11:49
parport_pc.c: Use correct length in strncmp
On Mon, 09 Nov 2009 19:51:23 -0800 Joe Perches <joe(a)perches.com> wrote: Signed-off-by: Joe Perches <joe(a)perches.com> diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index 2597145..ad113b0 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -3... 10 Nov 2009 05:54
Patches for mpc52xx_spi
Hi Grant, here are several patches for the dedicated spi controller on mpc5200 SOC. The patchset contains two fixes and an enhancement. I noticed that your original V4 Patch is still pending for mainline. So I made the patches against the latest version in your -next tree. Tested on a mpc5200b machine with 7 sp... 13 Nov 2009 14:24
[Repost without wordwrapping] Merge m68k and m68knommu
On Sunday 18 October 2009 04:55:40 Steven King wrote: This is a script and patch to merge the m68knommu arch into m68k. Ping. The script was inspired by the script Sam Ravnborg used to merge the includes from m68knommu. For those files common to both arches but differing in content, the m68k version... 5 Dec 2009 17:22
problems of using the 2.6.26 Linux Kernel Debugger (KGDB) with VMware
Hi everyone: Recently I was using kgdb and VMware workstation to debug linux kernel 2.6.26. I compiled and install kgdb according to the following webpage�� http://jaredrobinson.com/blog/using-the-2626-linux-kernel-debugger-kgdb-with-vmware/ But I still have some problems�� When I start gdb like��gdb ./vmliunx, ... 10 Nov 2009 02:38
I'm announcing the release of the 188.8.131.52 kernel. All users of the 2.6.31 kernel series are very strongly encouraged to upgrade. I'll also be replying to this message with a copy of the patch between 184.108.40.206 and 220.127.116.11 The updated 2.6.31.y git tree can be found at: git://git.kernel.org/pub/scm/lin... 12 Nov 2009 04:00
Fix syntax of mdio.txt to match actual syntax.
The syntax in Documentation/powerpc/dts-bindings/gpio/mdio.txt is not up to date and no longer works. Fix this as well as actually show how to represent a PHY on the gpio-bitbang bus. Tested with 2.6.31 on a RuggedCom RX5000 (mpc8360e based). Signed-off-by: Lennart Sorensen <lsorense(a)csclub.uwaterloo.ca> di... 9 Nov 2009 14:24
[X86] performance improvement for memcpy_64.S by fast string.
> Ling's numbers didn't seem to show a significant slowdown on Core 2 (it was something like 0.95x baseline in the worst case, and most of the cases were positive) so Core 2 doesn't seem to have a problem. I ran quite a lot of micro benchmarks with various alignments and sizes the 'q' variant was not always a... 13 Nov 2009 01:10