aboutsummaryrefslogtreecommitdiffstats
Commit message (Collapse)AuthorAge
* UWB: HWA: add support for Alereon 5310 and 5611 devicesThomas Pugliese2013-06-06
| | | | | | | | This patch adds support for the Alereon 5310 and 5611 devices to the HWA-rc driver. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: wusbcore: add HWA-specific fields to usb_rpipe_descriptorThomas Pugliese2013-06-06
| | | | | | | | | This patch adds the HWA specific members to struct usb_rpipe_descriptor and sets them correctly based on the wireless endpoint compananion descriptor. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* wusbhc: disable suspend and resume on the root hub.Thomas Pugliese2013-06-06
| | | | | | | | | Suspend and resume are not currently supported on the wireless root hub. Remove the suspend and resume op functions in the host controller driver to avoid constant error messages in the system log. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: fix PTR_ERR translation in init_usb_class()Alexey Khoroshilov2013-06-06
| | | | | | | | | | There is a misprint in init_usb_class(): IS_ERR is used to get error code instead of PTR_ERR. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* wusbcore: reduce keepalive threshold from timeout/2 to timeout/3Thomas Pugliese2013-06-06
| | | | | | | | | | | | | | | This patch reduces the keepalive threshold of WUSB host controllers from timeout/2 to timeout/3. The keepalive timer fires every timeout/2 ms, but due to rounding errors and jitter, the host may decide not to send a keepalive at timeout/2. By the time the next timer fires, a full timeout period may have expired causing the device to be disconnected without ever having been sent a keepalive. Changing the keepalive threshold to timeout/3 ensures that at least one keepalive will be sent before a device is disconnected. The patch also updates the code to use msecs_to_jiffies consistently. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: make USB_ARCH_HAS_?HCI obsoleteArnd Bergmann2013-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | The three options USB_ARCH_HAS_{EHCI,OHCI,XHCI} are all well beyond their recommended shelf life. They have caused numerous build failures over the years because they are never completely correct, and with the move to splitting out the platform specific back-ends out of the driver, there is no real need for them any more. Also, the use of making USB_ARCH_HAS_HCD depend on it is questionable since one can always enable dummy_hc these days. This patch enables them unconditionally for all platforms and architectures, which means it is now possible to build host controller drivers for machines that are known not to come with this hardware, but that is just how we treat most other drivers. In order to minimise the impact on existing architecture code and defconfig files, all the Kconfig are left present for now. All platforms that currently do 'select USB_ARCH_HAS_*' should subsequently be changed not to select that. All drivers depending on USB_ARCH_HAS_HCD should be changed to depend on USB_SUPPORT instead. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: OHCI: remove bogus #errorArnd Bergmann2013-06-06
| | | | | | | | | | | | | | | | | The OHCI host controller driver can be built standalone now, without enabling any of the available bus glue drivers, so there is not really a reason to error out here: drivers/usb/host/ohci-hcd.c:1258: error: #error "missing bus glue for ohci-hcd" #error "missing bus glue for ohci-hcd" This follows the same change done in ehci recently as 843e56c0 "USB: EHCI: remove bogus #error" and hopefully avoids future merge conflicts in this list. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: serial: pl2303 works at 500kbpsLuca Olivetti2013-06-03
| | | | | | | | | | | | | | | | | | | My PL2303HX works at 500kbps after applying this patch. I suppose that it could work at other non standard speeds since this fix "correctly handle baudrates above 115200" https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/usb/serial/pl2303.c?id=8d48fdf689fed2c73c493e5146d1463689246442 came after this one "fix baud rate handling in case of unsupported values" https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/usb/serial/pl2303.c?id=25b8286805e856c8c7fda127018e31032c918015 but I only can test it with 500000. Patch made against mainline but tested with 3.4.45 Signed-off-by: Luca Olivetti <luca@ventoso.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* uwb: use %*ph specifier to dump bufferAndy Shevchenko2013-06-03
| | | | | | | In kernel we have nice specifier %*ph to dump small buffers. Let's use it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: OHCI: add a name for the platform-private fieldManjunath Goudar2013-06-03
| | | | | | | | | | | | | This patch adds an ohci->priv field for private use by OHCI platform drivers. Until now none of the platform drivers has used this private space, but that's about to change in the next patch of this series. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: OHCI: make ohci-platform a separate driverManjunath Goudar2013-06-03
| | | | | | | | | | | | | | | | | This patch splits the ohci-platform code from ohci-hcd out into its own separate driver module.This work is part of enabling multi-platform kernels on ARM. In V2: -Passed "hcd" argument instead of "ohci" in ohci_setup() because it is using "struct usb_hcd" argument. In V3: -Directly passed "hcd" argument not required to call ohci_to_hcd() function. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb, chipidea: remove redundant D0 power state setYijing Wang2013-06-03
| | | | | | | | | | Pci_enable_device() will set device power state to D0, so it's no need to do it again in ci13xxx_pci_probe(). Signed-off-by: Yijing Wang <wangyijing@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: linux-usb@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: misc: usb3503: Remove 100ms sleep on reset, conform to data sheetJulius Werner2013-06-03
| | | | | | | | | | | | | | | | The usb3503 driver sleeps a flat 100ms when resetting the chip, with a comment about waiting for the reference clock. This seems to be a board-specific detail that should not hold up boot across all platforms. This patch reduces the sleep to the 4ms initialization delay that the chip itself actually requires (as per its data sheet). If certain boards require more time to set up the reference clock, they should change this through local patches or add a proper, configurable synchronization mechanism. Signed-off-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Dongjin Kim <tobetter@gmail.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: misc: usb3503: Fix up whitespaceJulius Werner2013-06-03
| | | | | | | | | Remove an erroneous tab that should be a space. Signed-off-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Dongjin Kim <tobetter@gmail.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Allow the USB HCD to create Wireless USB root hubsThomas Pugliese2013-06-03
| | | | | | | | | | | This patch adds Wireless USB root hub support to the USB HCD. It allows the HWA to create its root hub which previously failed because the HCD treated wireless root hubs the same as USB2 high speed hubs. The creation of the root hub would fail in that case due to lack of TTs which wireless root hubs do not support. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: fusbh200-hcd: rename two functionsYuan-Hsin Chen2013-06-03
| | | | | | | | Remove redundant "_fusbh200_" from fusbh200_hcd_fusbh200_probe and fusbh200_hcd_fusbh200_remove Signed-off-by: Yuan-Hsin Chen <yhchen@faraday-tech.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: serial: add support Infineon modem USB flashloader driverWei Shuai2013-06-03
| | | | | | | | If you want to download Infineon modem via USB, this Infineon USB flashloader driver is required. Signed-off-by: Wei Shuai <cpuwolf@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: OHCI: make ohci-pci a separate driverManjunath Goudar2013-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch splits the PCI portion of ohci-hcd out into its own separate driver module, called ohci-pci. The major point of difficulty lies in ohci-pci's many vendor- and device-specific workarounds. Some of them have to be applied before calling ohci_start() some after, which necessitates a fair amount of code motion. The other platform drivers require much smaller changes. The complete sb800_prefetch() function moved to ohci-q.c,because its only related to ohci-pci driver. USB_OHCI_HCD_PCI symbol no longer dependence on STB03xxx, PPC_MPC52xx and USB_OHCI_HCD_PPC_OF that's what removed. V2: - few specific content of pci related code in ohci_pci_start function has been moved to ohci_pci_reset and rest of the generic code is written in ohci_start of ohci-hcd.c file. V3: - ohci_restart() has been called in ohci_pci_reset() function for to reset the ohci pci. V4: -sb800_prefetch() moved to ohci-q.c,because its only related to ohci-pci. -no longer _creating_ CONFIG_USB_OHCI_PCI,creating CONFIG_USB_OHCI_HCD_PCI. -overrides renamed with pci_override,its giving proper meaning. V5: -sb800_prefetch() moved to pci-quirks.c,because its only related to pci. V6: -sb800_prefetch() function has been moved to pci-quirks.c made as separate patch in 2/3. -Most of the generic ohci pci changes moved in 2/3 patch,now this is complete ohci-pci separation patch. V7: -Unrelated include file has been removed from ohci.h file. V8: -USB_OHCI_HCD_PCI symbol does not dependence on STB03xxx, PPC_MPC52xx and USB_OHCI_HCD_PPC_OF. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: OHCI: Generic changes to make ohci-pci a separate driverManjunath Goudar2013-05-30
| | | | | | | | | | | | | | | | | | | | Note that this changes is part of separating the ohci pci host controller driver from ohci-hcd host code. This contains : -Moved sb800_prefetch() function from ohci-pci.c to pci-quirks.c file and EXPORTed, this is part of the effort to move the ohci pci related code to generic pci code. -Passed "device" argument instead of "ohci_hcd" in sb800_prefetch() function to avoid extra include file in pci-quirks.c. V2: -Passed "device" argment instead of "pci_dev", then we use to_pci_dev() to get the "pci_dev" structure. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: OHCI: prepare to make ohci-hcd a library moduleManjunath Goudar2013-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch prepares ohci-hcd for being split up into a core library and separate platform driver modules. A generic ohci_hc_driver structure is created, containing all the "standard" values, and a new mechanism is added whereby a driver module can specify a set of overrides to those values. In addition the ohci_restart(),ohci_suspend() and ohci_resume() routines need to be EXPORTed for use by the drivers. Added ohci_setip(() and ohci_start() routine for to start the generic controller rather than each having its own idiosyncratic approach. This allow to clean duplicated code in most of SOC driver In V2: -ohci_hcd_init() ohci_run() and ohci_stop() are not made non-static. -Adds the ohci_setup() and ohci_start() routine. In V3: -purpose of ohci_setup() and ohci_start() function description written in the patch description. -ohci_init() are not made non-static but now called beginning of the ohci_restart(). -ohci_run() signature change reverted back. -unrelated changes removed. -duplicate comment line removed. -inline ohci_suspend() and ohci_resume() is not needed so removed from ohci.h file. In V4: -ohci-init() EXPORTed because it is called by all bus glue modules. -ohci-setup() removed from 1/2 added into 2/2 patch. In V5: -Again ohci_setup() is added and EXPORTed because to replace the ohci_init() from all bus glues. -ohci_init() is not made non-static function. In V6: -ohci_init() call is removed from ohci_quirk_nec_worker(), because it is already called in ohci_restart(). In V8: -ohci_hcd_init() is called by ohci_setup() to make generic ohci initialization in all ohci drivers. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: FHCI: upgrade the isochronous APIAlan Stern2013-05-30
| | | | | | | | | | | | | | | | | | | | | | | This patch attempts to fix the isochronous API in the fhci-hcd driver. There are two problems with the current code: ed->last_iso is used but not set anywhere. The patch changes its name to ed->next_iso and uses it to store the frame number of the next available slot in the isochronous stream. urb->start_frame isn't set when the URB_ISO_ASAP flag is off. The patch sets it to the next available slot if the stream is in use, or the current frame otherwise. This won't give the right behavior when an underrun occurs, but I don't know enough about the driver to handle that case. Unfortunately, I don't have any way to test these changes. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Anton Vorontsov <avorontsov@ru.mvista.com> CC: Li Yang <leoli@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: IMX21: upgrade the isochronous APIAlan Stern2013-05-30
| | | | | | | | | | | | | | | | | This patch attempts to update the imx21-hcd driver to the current standard for the isochronous API. Firstly, urb->start_frame should always be set by the driver; it is not an input parameter. Secondly, the URB_ISO_ASAP flag matters only when an URB is submitted to a stream that has gotten an underrun. It causes the URB to be scheduled for the next available slot in the future, rather than the earliest unused (and expired) slot. Unfortunately, I don't have any way to test these changes. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Sascha Hauer <kernel@pengutronix.de> CC: Martin Fuzzey <mfuzzey@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: MUSB: upgrade the isochronous APIAlan Stern2013-05-30
| | | | | | | | | | | | | | | | This patch attempts to fix the isochonour API in the musb host driver. In particular, the urb->start_frame field should always be set by the driver; it isn't an input parameter. The simplest way to accomplish this is to treat all URBs as though the URB_ISO_ASAP flag was set. This won't give the right behavior when an underrun occurs, but I don't know enough about the musb driver to handle that case. Unfortunately, I have no way to test this change. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: ehci-s5p: skip phy setup for Exynos5440 based platformsThomas Abraham2013-05-30
| | | | | | | | | | Exynos5440 does not require any explict USB phy configuration. So skip the USB phy configuration for Exynos5440 based platforms. Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Ackked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: serial: dump small buffers with help of %*phAndy Shevchenko2013-05-30
| | | | | | | There is a specifier we may use to dump small buffers. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: host: use platform_{get,set}_drvdata()Jingoo Han2013-05-30
| | | | | | | | | | | | | Use the wrapper functions for getting and setting the driver data using platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev, so we can directly pass a struct platform_device. Also, unnecessary dev_set_drvdata() is removed, because the driver core clears the driver data to NULL after device_release or on probe failure. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-spear: Remove redundant checksSachin Kamat2013-05-30
| | | | | | | | | | 'hcd' can never be NULL and the spear_ehci_hcd_drv_remove routine will never be called in_interrupt. Hence remove these checks. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers/usb/host: remove leftover release_mem_regionWolfram Sang2013-05-30
| | | | | | | | | When converting this driver to devm_ioremap_resource, the removal of this now unneeded function has been forgotten. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: misc: usb3503: Adding device tree entry 'disabled-ports'Dongjin Kim2013-05-30
| | | | | | | | | | | | | | | | | | This patch is to add a property 'disabled-ports' representing the unused port of USB3503. USB3503 can support up to 3 USB host port and each ports can be controlled to be enabled or disabled. Do not describe this property if all ports must be enabled. You can represent the ports to disable in the device tree. usb3503@08{ ... disabled-ports = <2 3>; ... }; Signed-off-by: Dongjin Kim <tobetter@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: misc: usb3503: Add to select the ports to disableDongjin Kim2013-05-30
| | | | | | | | | | | | | | | | | This patch is to disable the USB ports unconnected to USB3503. In order to disable the port, 'port_off_mask' must be set. * Disable PORT1 only .port_off_mask = USB3503_OFF_PORT1; * Disable PORT1 and PORT3 only .port_off_mask = USB3503_OFF_PORT1 | USB3503_OFF_PORT3; * Enables all ports .port_off_mask = 0; Signed-off-by: Dongjin Kim <tobetter@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge 3.10-rc3 into usb-nextGreg Kroah-Hartman2013-05-26
|\ | | | | | | | | | | We want these fixes. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * Linux 3.10-rc3Linus Torvalds2013-05-26
| |
| * ipc/sem.c: Fix missing wakeups in do_smart_update_queue()Manfred Spraul2013-05-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | do_smart_update_queue() is called when an operation (semop, semctl(SETVAL), semctl(SETALL), ...) modified the array. It must check which of the sleeping tasks can proceed. do_smart_update_queue() missed a few wakeups: - if a sleeping complex op was completed, then all per-semaphore queues must be scanned - not only those that were modified by *sops - if a sleeping simple op proceeded, then the global queue must be scanned again And: - the test for "|sops == NULL) before scanning the global queue is not required: If the global queue is empty, then it doesn't need to be scanned - regardless of the reason for calling do_smart_update_queue() The patch is not optimized, i.e. even completing a wait-for-zero operation causes a rescan. This is done to keep the patch as simple as possible. Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com> Cc: Rik van Riel <riel@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * Merge tag 'nfs-for-3.10-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2013-05-26
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NFS client bugfixes from Trond Myklebust: - Stable fix to prevent an rpc_task wakeup race - Fix a NFSv4.1 session drain deadlock - Fix a NFSv4/v4.1 mount regression when not running rpc.gssd - Ensure auth_gss pipe detection works in namespaces - Fix SETCLIENTID fallback if rpcsec_gss is not available * tag 'nfs-for-3.10-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFS: Fix SETCLIENTID fallback if GSS is not available SUNRPC: Prevent an rpc_task wakeup race NFSv4.1 Fix a pNFS session draining deadlock SUNRPC: Convert auth_gss pipe detection to work in namespaces SUNRPC: Faster detection if gssd is actually running SUNRPC: Fix a bug in gss_create_upcall
| | * NFS: Fix SETCLIENTID fallback if GSS is not availableChuck Lever2013-05-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 79d852bf "NFS: Retry SETCLIENTID with AUTH_SYS instead of AUTH_NONE" did not take into account commit 23631227 "NFSv4: Fix the fallback to AUTH_NULL if krb5i is not available". Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * SUNRPC: Prevent an rpc_task wakeup raceTrond Myklebust2013-05-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The lockless RPC_IS_QUEUED() test in __rpc_execute means that we need to be careful about ordering the calls to rpc_test_and_set_running(task) and rpc_clear_queued(task). If we get the order wrong, then we may end up testing the RPC_TASK_RUNNING flag after __rpc_execute() has looped and changed the state of the rpc_task. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
| | * NFSv4.1 Fix a pNFS session draining deadlockAndy Adamson2013-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On a CB_RECALL the callback service thread flushes the inode using filemap_flush prior to scheduling the state manager thread to return the delegation. When pNFS is used and I/O has not yet gone to the data server servicing the inode, a LAYOUTGET can preceed the I/O. Unlike the async filemap_flush call, the LAYOUTGET must proceed to completion. If the state manager starts to recover data while the inode flush is sending the LAYOUTGET, a deadlock occurs as the callback service thread holds the single callback session slot until the flushing is done which blocks the state manager thread, and the state manager thread has set the session draining bit which puts the inode flush LAYOUTGET RPC to sleep on the forechannel slot table waitq. Separate the draining of the back channel from the draining of the fore channel by moving the NFS4_SESSION_DRAINING bit from session scope into the fore and back slot tables. Drain the back channel first allowing the LAYOUTGET call to proceed (and fail) so the callback service thread frees the callback slot. Then proceed with draining the forechannel. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * SUNRPC: Convert auth_gss pipe detection to work in namespacesTrond Myklebust2013-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | This seems to have been overlooked when we did the namespace conversion. If a container is running a legacy version of rpc.gssd then it will be disrupted if the global 'pipe_version' is set by a container running the new version of rpc.gssd. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * SUNRPC: Faster detection if gssd is actually runningTrond Myklebust2013-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recent changes to the NFS security flavour negotiation mean that we have a stronger dependency on rpc.gssd. If the latter is not running, because the user failed to start it, then we time out and mark the container as not having an instance. We then use that information to time out faster the next time. If, on the other hand, the rpc.gssd successfully binds to an rpc_pipe, then we mark the container as having an rpc.gssd instance. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * SUNRPC: Fix a bug in gss_create_upcallTrond Myklebust2013-05-15
| | | | | | | | | | | | | | | | | | | | | | | | If wait_event_interruptible_timeout() is successful, it returns the number of seconds remaining until the timeout. In that case, we should be retrying the upcall. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | Merge tag 'edac_fixes_for_3.10' of ↵Linus Torvalds2013-05-26
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp Pull amd64 edac fix from Borislav Petkov: "A sysfs file permissions correction" * tag 'edac_fixes_for_3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: amd64_edac: Fix bogus sysfs file permissions
| | * | amd64_edac: Fix bogus sysfs file permissionsBorislav Petkov2013-05-21
| | |/ | | | | | | | | | | | | | | | | | | Fix yet another issue caught by 8f46baaa7ec6c ("base: core: WARN() about bogus permissions on device attributes"). Signed-off-by: Borislav Petkov <bp@suse.de>
| * | Merge branch 'parisc-for-3.10' of ↵Linus Torvalds2013-05-26
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes from Helge Deller: "This time we made the kernel- and interruption stack allocation reentrant which fixed some strange kernel crashes (specifically protection ID traps). Furthemore this patchset fixes the interrupt stack in UP and SMP configurations by using native locking instructions. And finally usage of floating point calculations on parisc were disabled in the MPILIB." * 'parisc-for-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: fix irq stack on UP and SMP parisc/superio: Use module_pci_driver to register driver parisc: make interrupt and interruption stack allocation reentrant parisc: show number of FPE and unaligned access handler calls in /proc/interrupts parisc: add additional parisc git tree to MAINTAINERS file parisc: use PAGE_SHIFT instead of hardcoded value 12 in pacache.S parisc: add rp5470 entry to machine database MPILIB: disable usage of floating point registers on parisc
| | * | parisc: fix irq stack on UP and SMPHelge Deller2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The logic to detect if the irq stack was already in use with raw_spin_trylock() is wrong, because it will generate a "trylock failure on UP" error message with CONFIG_SMP=n and CONFIG_DEBUG_SPINLOCK=y. arch_spin_trylock() can't be used either since in the CONFIG_SMP=n case no atomic protection is given and we are reentrant here. A mutex didn't worked either and brings more overhead by turning off interrupts. So, let's use the fastest path for parisc which is the ldcw instruction. Counting how often the irq stack was used is pretty useless, so just drop this piece of code. Signed-off-by: Helge Deller <deller@gmx.de>
| | * | parisc/superio: Use module_pci_driver to register driverPeter Huewe2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removing some boilerplate by using module_pci_driver instead of calling register and unregister in the otherwise empty init/exit functions. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Helge Deller <deller@gmx.de>
| | * | parisc: make interrupt and interruption stack allocation reentrantJohn David Anglin2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The get_stack_use_cr30 and get_stack_use_r30 macros allocate a stack frame for external interrupts and interruptions requiring a stack frame. They are currently not reentrant in that they save register context before the stack is set or adjusted. I have observed a number of system crashes where there was clear evidence of stack corruption during interrupt processing, and as a result register corruption. Some interruptions can still occur during interruption processing, however external interrupts are disabled and data TLB misses don't occur for absolute accesses. So, it's not entirely clear what triggers this issue. Also, if an interruption occurs when Q=0, it is generally not possible to recover as the shadowed registers are not copied. The attached patch reworks the get_stack_use_cr30 and get_stack_use_r30 macros to allocate stack before doing register saves. The new code is a couple of instructions shorter than the old implementation. Thus, it's an improvement even if it doesn't fully resolve the stack corruption issue. Based on limited testing, it improves SMP system stability. Signed-off-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de>
| | * | parisc: show number of FPE and unaligned access handler calls in ↵Helge Deller2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | /proc/interrupts Show number of floating point assistant and unaligned access fixup handler in /proc/interrupts file. Signed-off-by: Helge Deller <deller@gmx.de>
| | * | parisc: add additional parisc git tree to MAINTAINERS fileHelge Deller2013-05-24
| | | | | | | | | | | | | | | | Signed-off-by: Helge Deller <deller@gmx.de>
| | * | parisc: use PAGE_SHIFT instead of hardcoded value 12 in pacache.SHelge Deller2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | additionally clean up some whitespaces & tabs. Signed-off-by: Helge Deller <deller@gmx.de>
| | * | parisc: add rp5470 entry to machine databaseHelge Deller2013-05-24
| | | | | | | | | | | | | | | | Signed-off-by: Helge Deller <deller@gmx.de>
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-09 02:49:38 -0400