Kernel

writeback: reduce calls to global_page_state in balance_dirty_pages()
On Sun 11-07-10 10:06:58, Wu Fengguang wrote: Reducing the number of times balance_dirty_pages calls global_page_state reduces the cache references and so improves write performance on a variety of workloads. 'perf stats' of simple fio write tests shows the reduction in cache access. Where the test ... 3 Aug 2010 11:26

2.6.35-rc6: S2R hangs + WARNING: at net/mac80211/scan.c
config can be found here: https://bugzilla.kernel.org/show_bug.cgi?id=15673 1.) suspend to ram very often does not work in 2.6.35-rc6 (but sometimes it does work!). S2R very often results in a black screen with backlight on. a dmesg of a successful S2R cycle can be found in above bug report. this is a regress... 26 Jul 2010 11:38

[r8169] WARNING: at net/sched/sch_generic.c
On (07/26/10 16:34), Eric Dumazet wrote: Sorry for the dealy - I've been away. So, the bad news are that this is probably the last time I can test this bug. This laptop will no longer be available. Sorry. [ 2599.495508] pktgen 2.73: Packet Generator for packet performance testing. [... 26 Jul 2010 12:44

hda_intel: too quiet sound (regression)
Hi, after I upgraded from 2.6.34-rc5-mm1 to 2.6.35-rc5-mm1 (there were other issues in between them), the sound from my soundcard is very very quiet. alsa-info: http://www.alsa-project.org/db/?f=dcadb29a2d5d047ecf5545792ac3239dc0c8c7f0 Any ideas? thanks, -- js -- To unsubscribe from this list: send t... 26 Jul 2010 11:38

Add a dentry op to handle automounting rather than abusing follow_link() [ver #2]
Ian Kent <raven(a)themaw.net> wrote: (4) Stops pathwalk at the automount point and returns that point in the fs tree if it decides not to automount rather than reporting ELOOP (see its use of EXDEV for this). Does it make autofs easier if d_op->d_automount() is allowed to return -EXDEV t... 27 Jul 2010 05:10

[PATCHv2 2/4] mm: cma: Contiguous Memory Allocator added
The Contiguous Memory Allocator framework is a set of APIs for allocating physically contiguous chunks of memory. Various chips require contiguous blocks of memory to operate. Those chips include devices such as cameras, hardware video decoders and encoders, etc. The code is highly modular and customisable to... 26 Jul 2010 10:32

[PATCHv2 3/4] mm: cma: Test device and application added
This patch adds a "cma" misc device which lets user space use the CMA API. This device is meant for testing. A testing application is also provided. Signed-off-by: Michal Nazarewicz <m.nazarewicz(a)samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park(a)samsung.com> --- drivers/misc/Kconfig | 8 + drive... 26 Jul 2010 10:32

[PATCHv2 4/4] arm: Added CMA to Aquila and Goni
Added the CMA initialisation code to two Samsung platforms. Signed-off-by: Michal Nazarewicz <m.nazarewicz(a)samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park(a)samsung.com> --- arch/arm/mach-s5pv210/mach-aquila.c | 13 +++++++++++++ arch/arm/mach-s5pv210/mach-goni.c | 13 +++++++++++++ 2 files change... 26 Jul 2010 10:32

[PATCHv2 0/4] The Contiguous Memory Allocator
Hello everyone, The following patchset implements a Contiguous Memory Allocator. For those who have not yet stumbled across CMA an excerpt from documentation: The Contiguous Memory Allocator (CMA) is a framework, which allows setting up a machine-specific configuration for physically-contiguous memo... 26 Jul 2010 10:32

[PATCHv2 1/4] lib: rbtree: rb_root_init() function added
Added a rb_root_init() function which initialises a rb_root structure as a red-black tree with at most one element. The rationale is that using rb_root_init(root, node) is more straightforward and cleaner then first initialising and empty tree followed by an insert operation. Signed-off-by: Michal Nazarewicz <m... 26 Jul 2010 10:32