- 19 5月, 2012 1 次提交
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由 Minho Ban 提交于
Sometimes resume= parameter comes in integer style (e.g. major:minor) and then name_to_dev_t can not detect partition properly. (especially async device like usb, mmc). This patch calls get_gendisk() if resumewait is true and resume_file is in integer format to work around this problem. Signed-off-by: NMinho Ban <mhban@samsung.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 06 5月, 2012 1 次提交
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由 Marcos Paulo de Souza 提交于
sysfs was expected in this context. Signed-off-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com> Acked-by: NSrivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 02 5月, 2012 4 次提交
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由 Rafael J. Wysocki 提交于
Android allows user space to manipulate wakelocks using two sysfs file located in /sys/power/, wake_lock and wake_unlock. Writing a wakelock name and optionally a timeout to the wake_lock file causes the wakelock whose name was written to be acquired (it is created before is necessary), optionally with the given timeout. Writing the name of a wakelock to wake_unlock causes that wakelock to be released. Implement an analogous interface for user space using wakeup sources. Add the /sys/power/wake_lock and /sys/power/wake_unlock files allowing user space to create, activate and deactivate wakeup sources, such that writing a name and optionally a timeout to wake_lock causes the wakeup source of that name to be activated, optionally with the given timeout. If that wakeup source doesn't exist, it will be created and then activated. Writing a name to wake_unlock causes the wakeup source of that name, if there is one, to be deactivated. Wakeup sources created with the help of wake_lock that haven't been used for more than 5 minutes are garbage collected and destroyed. Moreover, there can be only WL_NUMBER_LIMIT wakeup sources created with the help of wake_lock present at a time. The data type used to track wakeup sources created by user space is called "struct wakelock" to indicate the origins of this feature. This version of the patch includes an rbtree manipulation fix from John Stultz. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: NNeilBrown <neilb@suse.de>
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由 Rafael J. Wysocki 提交于
Android uses one wakelock statistics that is only necessary for opportunistic sleep. Namely, the prevent_suspend_time field accumulates the total time the given wakelock has been locked while "automatic suspend" was enabled. Add an analogous field, prevent_sleep_time, to wakeup sources and make it behave in a similar way. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Rafael J. Wysocki 提交于
Introduce a mechanism by which the kernel can trigger global transitions to a sleep state chosen by user space if there are no active wakeup sources. It consists of a new sysfs attribute, /sys/power/autosleep, that can be written one of the strings returned by reads from /sys/power/state, an ordered workqueue and a work item carrying out the "suspend" operations. If a string representing the system's sleep state is written to /sys/power/autosleep, the work item triggering transitions to that state is queued up and it requeues itself after every execution until user space writes "off" to /sys/power/autosleep. That work item enables the detection of wakeup events using the functions already defined in drivers/base/power/wakeup.c (with one small modification) and calls either pm_suspend(), or hibernate() to put the system into a sleep state. If a wakeup event is reported while the transition is in progress, it will abort the transition and the "system suspend" work item will be queued up again. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: NNeilBrown <neilb@suse.de>
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由 Rafael J. Wysocki 提交于
Wakeup statistics used by Android are slightly different from what we have in wakeup sources at the moment and there aren't any known users of those statistics other than Android, so modify them to make it easier for Android to switch to wakeup sources. This removes the struct wakeup_source's hit_cout field, which is very rough and therefore not very useful, and adds two new fields, wakeup_count and expire_count. The first one tracks how many times the wakeup source is activated with events_check_enabled set (which roughly corresponds to the situations when a system power transition to a sleep state is in progress and would be aborted by this wakeup source if it were the only active one at that time) and the second one is the number of times the wakeup source has been activated with a timeout that expired. Additionally, the last_time field is now updated when the wakeup source is deactivated too (previously it was only updated during the wakeup source's activation), which seems to be what Android does with the analogous counter for wakelocks. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 30 4月, 2012 1 次提交
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由 Marcos Paulo de Souza 提交于
The file Documentation/power/freezing-of-tasks.txt was still referencing the TIF_FREEZE flag, that was removed by the commit d88e4cb6(freezer: remove now unused TIF_FREEZE). This patch removes all the references of TIF_FREEZE that were left behind. Signed-off-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com> Signed-off-by: NSrivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 26 4月, 2012 1 次提交
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由 Jeff Layton 提交于
Acked-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NJeff Layton <jlayton@redhat.com>
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- 23 4月, 2012 1 次提交
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由 Carlos Chinea 提交于
Adds sysfs HSI framework documentation Signed-off-by: NCarlos Chinea <carlos.chinea@nokia.com> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org>
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- 19 4月, 2012 1 次提交
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由 Sylwester Nawrocki 提交于
Signed-off-by: NSylwester Nawrocki <sylvester.nawrocki@gmail.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 13 4月, 2012 1 次提交
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由 Ying Han 提交于
In v3.3-rc1, the global LRU was removed in commit 925b7673 ("mm: make per-memcg LRU lists exclusive"). The patch fixes up the memcg docs. I left the swap session to someone who has better understanding of 'memory+swap'. Signed-off-by: NYing Han <yinghan@google.com> Acked-by: NMichal Hocko <mhocko@suse.cz> Acked-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 12 4月, 2012 1 次提交
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由 Stephen Lewis 提交于
Correct path names in API documentation for usbtmc Signed-off-by: NStephen Lewis <lewis@sdf.lonestar.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 11 4月, 2012 1 次提交
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由 Takashi Iwai 提交于
Since there are still many Acer models that might not be covered by the current fixup table, let's add back a few typical model names so that user can test the fixup without recompiling. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 09 4月, 2012 2 次提交
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由 Asai Thambi S P 提交于
* Add support for detecting the following device status - write protect - over temp (thermal shutdown) * Add new sysfs entry 'status', possible values - online, write_protect, thermal_shutdown * Add new file 'sysfs-block-rssd' to document ABI (Reported-by: Greg Kroah-Hartman) Signed-off-by: NAsai Thambi S P <asamymuthupa@micron.com> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 07 4月, 2012 2 次提交
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由 Alan Stern 提交于
This patch (as1534c) updates the documentation for usb_unlink_urb and related functions. It explains that the caller must prevent the URB being unlinked from getting deallocated while the unlink is taking place. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> CC: Ming Lei <tom.leiming@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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The doc says that the data | 55534243 5e000000 00000000 00000600 00000000 00000000 00000000 000000 is the SCSI command 0x5e. According to the usbmon source, it dumps one byte after the other. The first 4 bytes are US_BULK_CB_SIGN which is correct. After that we see the TAG which is 0x5e. The cdb is 0x00 in this example. In order to correct this, I change the example to a READ_10 command which is 0x28 so it is not just a zero somewhere in the stream. Signed-off-by: NSebastian Andrzej Siewior <sebastian@breakpoint.cc> Acked-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 06 4月, 2012 5 次提交
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由 Ben Hutchings 提交于
Commit dc1f8bf6 ('netdev: change transmit to limited range type') changed the required return type and 9a1654ba ('net: Optimize hard_start_xmit() return checking') changed the valid numerical return values. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ben Hutchings 提交于
Commit 08baf561 ('net: txq_trans_update() helper') made it unnecessary for most drivers to set net_device::trans_start (or netdev_queue::trans_start). Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ben Hutchings 提交于
Commits d314774c ('netdev: network device operations infrastructure') and 00829823 ('netdev: add more functions to netdevice ops') moved and renamed net device operation pointers. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ben Hutchings 提交于
Commits e308a5d8 ('netdev: Add netdev->addr_list_lock protection.') and e8a0464c ('netdev: Allocate multiple queues for TX.') introduced more fine-grained locks. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ben Hutchings 提交于
Commit bea3348e ('[NET]: Make NAPI polling independent of struct net_device objects.') removed the automatic disabling of NAPI polling by dev_close(), and drivers must now do this themselves. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 4月, 2012 1 次提交
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由 Nicolas Ferre 提交于
Add comments to NAND "gpios" property to make it clearer. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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- 04 4月, 2012 1 次提交
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The explanation of ip_local_port_range in Documentation/networking/ip-sysctl.txt contains several factual errors: - The default value of ip_local_port_range does not depend on the amount of memory available in the system. - tcp_tw_recycle is not enabled by default. - 1024-4999 is not the default value. - Etc. Clean up the mess. Signed-off-by: NFernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 02 4月, 2012 2 次提交
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由 Tao Ma 提交于
Cc: Jens Axboe <axboe@kernel.dk> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NTao Ma <boyu.mt@taobao.com> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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由 Andre Przywara 提交于
The on-chip northbridge's temperature sensor of the upcoming AMD Trinity CPUs works the same as for the previous CPUs. Since it has a different PCI-ID, we just add the new one to the list supported by k10temp. This allows to use the k10temp driver on those CPUs. Signed-off-by: NAndre Przywara <andre.przywara@amd.com> Cc: stable@vger.kernel.org # 3.0+ Signed-off-by: NGuenter Roeck <guenter.roeck@ericsson.com>
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- 31 3月, 2012 8 次提交
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由 Rafal Kapela 提交于
Fix "the the" in ABI/stable/sysfs-driver-usb-usbtmc Signed-off-by: NRafal Kapela <raf.kapela@gmail.com> Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Cc: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Lucas De Marchi 提交于
Install commands should not be used to specify soft dependencies among modules. When loading modules it's much better to have a softdep that modprobe knows what's being done than having to fork/exec another instance of modprobe to load the other module. By using a softdep user has also an option to remove the dependencies when removing the module (and if its refcount dropped to 0) Signed-off-by: NLucas De Marchi <lucas.demarchi@profusion.mobi> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Lucas De Marchi 提交于
Usage of /etc/modprobe.conf file was deprecated by module-init-tools and is no longer parsed by new kmod tool. References to this file are replaced in Documentation, comments and Kconfig according to the context. There are also some references to the old /etc/modules.conf from 2.4 kernels that are being removed. Signed-off-by: NLucas De Marchi <lucas.demarchi@profusion.mobi> Acked-by: NTakashi Iwai <tiwai@suse.de> Acked-by: NMauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
Clarify that the 'cat' command does not include the (c, 13, 32) after it. Reported-by: NDan Jidanni Jacobson <jidanni@jidanni.org> Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Josh Triplett 提交于
Signed-off-by: NJosh Triplett <josh@joshtriplett.org> Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
Reported-by: NKřištof Želechovski <giecrilj@stegny.2a.pl> Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Javi Merino 提交于
The kconfig documentation suggests using plain 'diff' to compare config files and then adds "Yes, we need something better here". Commit a717417e ("kconfig: add diffconfig utility") added what that comment was looking for. Signed-off-by: NJavi Merino <javi.merino@arm.com> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 H Hartley Sweeten 提交于
The mach entry in the dontdiff file causes all the arch/arm/mach-*/include/mach directories to be skipped. Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 30 3月, 2012 6 次提交
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由 Sasikantha babu 提交于
setitimer() should return -EFAULT if called with an invalid pointer for value. The current code excludes a NULL pointer from this rule and silently uses it to stop the timer. This violates the spec. Warn about user space apps which rely on that feature and schedule it for removal. [ tglx: Massaged changelog, warn message and Doc entry ] Signed-off-by: NSasikantha babu <sasikanth.v19@gmail.com> Link: http://lkml.kernel.org/r/1332340854-26053-1-git-send-email-sasikanth.v19@gmail.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Matthew Garrett 提交于
ACPI 5.0 adds the BGRT, a table that contains a pointer to the firmware boot splash and associated metadata. This simple driver exposes it via /sys/firmware/acpi in order to allow bootsplash applications to draw their splash around the firmware image and reduce the number of jarring graphical transitions during boot. Signed-off-by: NMatthew Garrett <mjg@redhat.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Chen Gong 提交于
Add description of parameter notrigger in the einj.txt. One can utilize this new parameter to do some SRAR injection test. Pay attention, the operation is highly depended on the BIOS implementation. If no proper BIOS supports it, even if enabling this parameter, expected result will not happen. v2: Update the documentation suggested by Tony Suggested-by: NTony Luck <tony.luck@intel.com> Signed-off-by: NChen Gong <gong.chen@linux.intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Len Brown 提交于
The X86_32-only disable_hlt/enable_hlt mechanism was used by the 32-bit floppy driver. Its effect was to replace the use of the HLT instruction inside default_idle() with cpu_relax() - essentially it turned off the use of HLT. This workaround was commented in the code as: "disable hlt during certain critical i/o operations" "This halt magic was a workaround for ancient floppy DMA wreckage. It should be safe to remove." H. Peter Anvin additionally adds: "To the best of my knowledge, no-hlt only existed because of flaky power distributions on 386/486 systems which were sold to run DOS. Since DOS did no power management of any kind, including HLT, the power draw was fairly uniform; when exposed to the much hhigher noise levels you got when Linux used HLT caused some of these systems to fail. They were by far in the minority even back then." Alan Cox further says: "Also for the Cyrix 5510 which tended to go castors up if a HLT occurred during a DMA cycle and on a few other boxes HLT during DMA tended to go astray. Do we care ? I doubt it. The 5510 was pretty obscure, the 5520 fixed it, the 5530 is probably the oldest still in any kind of use." So, let's finally drop this. Signed-off-by: NLen Brown <len.brown@intel.com> Signed-off-by: NJosh Boyer <jwboyer@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Acked-by: N"H. Peter Anvin" <hpa@zytor.com> Acked-by: NAlan Cox <alan@lxorguk.ukuu.org.uk> Cc: Stephen Hemminger <shemminger@vyatta.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: <stable@kernel.org> Link: http://lkml.kernel.org/n/tip-3rhk9bzf0x9rljkv488tloib@git.kernel.org [ If anyone cares then alternative instruction patching could be used to replace HLT with a one-byte NOP instruction. Much simpler. ] Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 ShuoX Liu 提交于
Some C states of new CPU might be not good. One reason is BIOS might configure them incorrectly. To help developers root cause it quickly, the patch adds a new sysfs entry, so developers could disable specific C state manually. In addition, C state might have much impact on performance tuning, as it takes much time to enter/exit C states, which might delay interrupt processing. With the new debug option, developers could check if a deep C state could impact performance and how much impact it could cause. Also add this option in Documentation/cpuidle/sysfs.txt. [akpm@linux-foundation.org: check kstrtol return value] Signed-off-by: NShuoX Liu <shuox.liu@intel.com> Reviewed-by: NYanmin Zhang <yanmin_zhang@intel.com> Reviewed-and-Tested-by: NDeepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Grant Likely 提交于
v2: 2nd draft - Editorial cleanups (Randy Dunlap and Stephen Warren) - Added missing Microblaze reference (Stephen Neuendorffer) - Make example of platform_device creation clearer (Shawn Guo) - Expand on PowerPC history and mention i2c mess (David Gibson) - convert to plain text (remove bits of html formating) Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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