Kernel

[PATCH v4 2/2] cgroups: make procs file writable
Makes procs file writable to move all threads by tgid at once From: Ben Blum <bblum(a)andrew.cmu.edu> This patch adds functionality that enables users to move all threads in a threadgroup at once to a cgroup by writing the tgid to the 'cgroup.procs' file. This current implementation makes use of a per-threadgroup... 30 Jul 2010 20:45

[PATCH v4 1/2] cgroups: read-write lock CLONE_THREAD forking per threadgroup
Adds functionality to read/write lock CLONE_THREAD fork()ing per-threadgroup From: Ben Blum <bblum(a)andrew.cmu.edu> This patch adds an rwsem that lives in a threadgroup's signal_struct that's taken for reading in the fork path, under CONFIG_CGROUPS. If another part of the kernel later wants to use such a locking... 30 Jul 2010 20:45

Using unsigned int for loop counters - better performance for Architectures - urban hacker legend?
For good while now I have been using unsigned int for every looper iterator I implement on the kernel. I remember I picked this practice up from Jiri but I just tried to look for actual documentation of this online and could not find much. A simple test would be to run a series of loop tests on different architectu... 31 Jul 2010 06:25

[PATCH v4 0/2] cgroups: implement moving a threadgroup's threads atomically with cgroup.procs
This patch series is a revision of http://lkml.org/lkml/2010/6/25/11 . This patch series implements a write function for the 'cgroup.procs' per-cgroup file, which enables atomic movement of multithreaded applications between cgroups. Writing the thread-ID of any thread in a threadgroup to a cgroup's procs file ca... 30 Jul 2010 20:45

USB: gadget: Use new composite features in some gadgets
On Sat, Jul 31, 2010 at 6:01 AM, David Brownell <david-b(a)pacbell.net> wrote: Or does Windows really care about the vid/pid for a class device somehow? My understanding is that it does, since it really doesn't have a good concept of "class" being the generic thing. �INF files embed VIDS/PIDS even ... 30 Jul 2010 20:45

[PATCH] net: Add getsockopt support for TCP thin-streams
Initial TCP thin-stream commit did not add getsockopt support for the new socket options: TCP_THIN_LINEAR_TIMEOUTS and TCP_THIN_DUPACK. This adds support for them. Signed-off-by: Josh Hunt <johunt(a)akamai.com> --- net/ipv4/tcp.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/net... 30 Jul 2010 20:45

workqueue: mark init_workqueues() as early_initcall()
On Fri, 30 Jul 2010 14:57:37 -0700 Suresh Siddha <suresh.b.siddha(a)intel.com> wrote: Mark init_workqueues() as early_initcall() and thus it will be initialized before smp bringup. init_workqueues() registers for the hotcpu notifier and thus it should cope with the processors that are brought online after ... 30 Jul 2010 21:50

[tip:x86/cpu] x86, cpu: Package Level Thermal Control, Power Limit Notification definitions
Commit-ID: 9792db6174d9927700ed288e6d74b9391bf785d1 Gitweb: http://git.kernel.org/tip/9792db6174d9927700ed288e6d74b9391bf785d1 Author: Fenghua Yu <fenghua.yu(a)intel.com> AuthorDate: Thu, 29 Jul 2010 17:13:42 -0700 Committer: H. Peter Anvin <hpa(a)linux.intel.com> CommitDate: Fri, 30 Jul 2010 16:15:32 -0700 ... 30 Jul 2010 20:45

ecryptfs (repost): release reference to lower mount if interpose fails
On Thu Jul 29, 2010 at 01:01:36PM +0200, Lino Sanfilippo <LinoSanfilippo(a)gmx.de> wrote: In ecryptfs_lookup_and_interpose_lower() the lower mount is not decremented if allocation of a dentry info struct failed. As a result the lower filesystem cant be unmounted any more (since it is considered busy). This p... 30 Jul 2010 20:45

x86,kgdb: Individual register get/set for x86
On 07/30/2010 12:17 PM, Jason Wessel wrote: Implement the ability to individually get and set registers for kdb and kgdb for x86. Signed-off-by: Jason Wessel <jason.wessel(a)windriver.com> CC: Ingo Molnar <mingo(a)redhat.com> CC: H. Peter Anvin <hpa(a)zytor.com> CC: x86(a)kernel.org Looks reasonable to... 30 Jul 2010 20:45