Kernel

IPC between application and xserver is causing extra context switches
Hi, While running rendering benchmark we noticed huge context switch numbers that were a lot larger than excepted. Numbers were showing 20-30 context switches per frame. Theoretical minimum context switches is less than 10. Problem was traced using FineToothComp (FTC) [1]. Tracing down to per instruction view ... 9 Aug 2010 11:13

tty: add tty_struct->dev pointer to corresponding device instance
On Mon, 9 Aug 2010 18:22:49 +0400 Dmitry Eremin-Solenikov <dbaryshkov(a)gmail.com> wrote: Some device drivers (mostly tty line disciplines) would like to have way know a struct device instance corresponding to passed tty_struct. Add a struct device pointer to struct tty_struct and populate it during initi... 9 Aug 2010 11:13

perf symbols: ignore mapping symbols on ARM
Em Mon, Aug 09, 2010 at 12:21:18PM +0100, Dave Martin escreveu: + /* Reject ARM ELF "mapping symbols": these aren't unique and + * don't identify functions, so will confuse the profile + * output: */ + if (ehdr.e_machine == EM_ARM) { + if (!strcmp(elf_name, "$a") || + !strcmp(elf_name, "... 9 Aug 2010 11:13

[PATCH 2/2 v3] mfd: Add timberdale video-in driver to timberdale
This patch defines platform data for the video-in driver and adds it to all configurations of timberdale. Signed-off-by: Richard Röjfors <richard.rojfors(a)pelagicore.com> --- diff --git a/drivers/mfd/timberdale.c b/drivers/mfd/timberdale.c index ac59950..d4a95bd 100644 --- a/drivers/mfd/timberdale.c +++ b/drive... 9 Aug 2010 11:13

[PATCH 0/2 v3] media, mfd: Add timberdale video-in driver
To follow are three patches. Since last patch I removed the uncached buffers patch, it needs to be investigated further. The first adds the timberdale video-in driver to the media tree. The second adds it to the timberdale MFD driver. Samuel and Mauro hope you can support and solve the potential merge iss... 9 Aug 2010 11:13

[PATCH] vfs: introduce FS_IOC_SYNCFS to sync a single super
Currently the only way to sync a single super_block (and not all of them via sync(2)) is via the BLKFLSBUF ioctl on the block device. That also invalidates the bdev mapping, which isn't usually desireable, and it doesn't work for non-block file systems. The ability to sync a single mount can be useful for bot... 9 Aug 2010 11:13

[PATCH 2/2] serport: place serport serio device correctly in the device tree
Make serport serio device to be a child of corresponding tty device instead of just hanging at /sys/devices/serioX. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov(a)gmail.com> Cc: Dmitry Torokhov <dmitry.torokhov(a)gmail.com> --- drivers/input/serio/serport.c | 1 + 1 files changed, 1 insertions(+), 0 delet... 9 Aug 2010 11:13

drivers/message/fusion: Adjust confusing if indentation
-----Original Message----- From: Julia Lawall [mailto:julia(a)diku.dk] Sent: Friday, August 06, 2010 1:57 AM To: Moore, Eric; Support, Software; DL-MPT Fusion Linux; linux- scsi(a)vger.kernel.org; linux-kernel(a)vger.kernel.org; kernel- janitors(a)vger.kernel.org Subject: [PATCH 34/42] drivers/message/f... 9 Aug 2010 11:13

lockup_detector: Make DETECT_HUNT_TASK default depend on LOCKUP_DETECTOR
On Mon, Aug 09, 2010 at 09:49:17AM -0400, Don Zickus wrote: Why s390 doesn't want the softlockup detector to begin with? If I remember correctly then we disabled that back then because we got false positives. The reason for those were that the softlockup detector did not take steal time into... 9 Aug 2010 11:13

drm: fix fallouts from slow-work -> wq conversion
On 08/09/2010 03:20 AM, Tejun Heo wrote: From 9a919c46dfa48a9c1f465174609b90253eb8ffc1 Mon Sep 17 00:00:00 2001 From: Tejun Heo<tj(a)kernel.org> Date: Mon, 9 Aug 2010 12:01:27 +0200 Commit 991ea75c (drm: use workqueue instead of slow-work), which made drm to use wq instead of slow-work, didn't account ... 9 Aug 2010 11:13