Kernel

[PATCHv3 12/14] writeback: optimize periodic bdi thread wakeups
From: Artem Bityutskiy <Artem.Bityutskiy(a)nokia.com> Whe the first inode for a bdi is marked dirty, we wake up the bdi thread which should take care of the periodic background write-out. However, the write-out will actually start only 'dirty_writeback_interval' centisecs later, so we can delay the wake-up. This... 22 Jul 2010 10:18

[PATCHv3 07/14] writeback: do not remove bdi from bdi_list
From: Artem Bityutskiy <Artem.Bityutskiy(a)nokia.com> The forker thread removes bdis from 'bdi_list' before forking the bdi thread. But this is wrong for at least 2 reasons. Reason #1: if we temporary remove a bdi from the list, we may miss works which would otherwise be given to us. Reason #2: this... 22 Jul 2010 10:18

[PATCHv3 06/14] writeback: simplify bdi code a little
From: Artem Bityutskiy <Artem.Bityutskiy(a)nokia.com> This patch simplifies bdi code a little by removing the 'pending_list' which is redundant. Indeed, currently the forker thread ('bdi_forker_thread()') is working like this: 1. In a loop, fetch all bdi's which have works but have no writeback thread and mov... 22 Jul 2010 10:18

[PATCHv3 10/14] writeback: move bdi threads exiting logic to the forker thread
From: Artem Bityutskiy <Artem.Bityutskiy(a)nokia.com> Currently, bdi threads can decide to exit if there were no useful activities for 5 minutes. However, this causes nasty races: we can easily oops in the 'bdi_queue_work()' if the bdi thread decides to exit while we are waking it up. And even if we do not oops, ... 22 Jul 2010 10:18

perf: export tracepoint events via sysfs: iwlwifi and iwlwifi_io
* Steven Rostedt <rostedt(a)goodmis.org> wrote: On Thu, 2010-07-22 at 13:20 +0200, Johannes Berg wrote: On Thu, 2010-07-22 at 19:13 +0800, Lin Ming wrote: iwlwifi and iwlwifi_io tracepoint events are exported like below, drivers/net/wireless/iwlwifi/iwl3945-base.c | 15 +++++++++++++++ ... 22 Jul 2010 10:18

perf: export tracepoint events via sysfs: sched, raw_syscalls etc.
On Thu, 2010-07-22 at 19:12 +0800, Lin Ming wrote: Below tracepoint events are exported under /sys/kernel/events/. sched, raw_syscalls, irq, timer, signal, workqueue, lock and bkl +/* + * tracepoint events: sched, raw_syscalls, irq, timer, signal, + * workqueue, lock and bkl are exported to ... 22 Jul 2010 10:18

[PATCH] staging: clean up code a bit, use kernel native methods
Signed-off-by: Andy Shevchenko <andy.shevchenko(a)gmail.com> Cc: Greg Kroah-Hartman <gregkh(a)suse.de> Cc: devel(a)driverdev.osuosl.org --- drivers/staging/otus/apdbg.c | 22 ----------------- drivers/staging/panel/panel.c | 19 +++++--------- drivers/staging/rtl8192su/r8192S_Efuse.c | 27 ... 22 Jul 2010 10:18

Fix false positive BUG_ON in __page_set_anon_rmap
On 07/22/2010 03:41 AM, KAMEZAWA Hiroyuki wrote: Rik, how do you think ? == From: KAMEZAWA Hiroyuki<kamezawa.hiroyu(a)jp.fujitsu.com> Problem: wrong BUG_ON() in __page_set_anon_rmap(). Kernel version: mmotm-0719 Description: Even if SwapCache is fully unmapped and mapcount goes down to 0,... 22 Jul 2010 10:18

perf: export tracepoint events via sysfs: mac80211
* Johannes Berg <johannes(a)sipsolutions.net> wrote: On Thu, 2010-07-22 at 19:18 +0800, Lin Ming wrote: mac80211 tracepoint events are exported like below, /sys/class/ieee80211/events/ |-- api_beacon_loss | |-- config | |-- type .... .... |-- drv_add_interface ... 22 Jul 2010 09:12

[PATCH net-next] sysfs: add attribute to indicate hw address assignment type
On 21.07.2010 15:54, Ben Hutchings wrote: On Wed, 2010-07-21 at 10:10 +0200, Stefan Assmann wrote: I put Alex' idea into code for further discussion, keeping the names mentioned here until we agree on the scope of this attribute. When we have settled I'll post a patch with proper patch description. [.... 22 Jul 2010 09:12