- 25 1月, 2008 2 次提交
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由 Greg Kroah-Hartman 提交于
We don't need a "default" ktype for a kset. We should set this explicitly every time for each kset. This change is needed so that we can make ksets dynamic, and cleans up one of the odd, undocumented assumption that the kset/kobject/ktype model has. This patch is based on a lot of help from Kay Sievers. Nasty bug in the block code was found by Dave Young <hidave.darkstar@gmail.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Dave Young <hidave.darkstar@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Rafael J. Wysocki 提交于
This patch reorganizes the way suspend and resume notifications are sent to drivers. The major changes are that now the PM core acquires every device semaphore before calling the methods, and calls to device_add() during suspends will fail, while calls to device_del() during suspends will block. It also provides a way to safely remove a suspended device with the help of the PM core, by using the device_pm_schedule_removal() callback introduced specifically for this purpose, and updates two drivers (msr and cpuid) that need to use it. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 29 11月, 2007 1 次提交
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由 Daniel Drake 提交于
The CONFIG_SUSPEND changes in 2.6.23 caused a regression under certain configuration conditions (SUSPEND=n, USB_AUTOSUSPEND=y) where all USB device attributes in sysfs (idVendor, idProduct, ...) silently disappeared, causing udev breakage and more. The cause of this is that the /sys/.../power subdirectory is now only created when CONFIG_PM_SLEEP is set, however, it should be created whenever CONFIG_PM is set to handle the above situation. The following patch fixes the regression. Signed-off-by: NDaniel Drake <dsd@gentoo.org> Acked-by: NRafael J. Wysocki <rjw@sisk.pl> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: stable <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 31 10月, 2007 1 次提交
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由 Kay Sievers 提交于
This should fix the sysfs warnings that renaming network devices is causing to show up with CONFIG_SYSFS_DEPRECATED=y The code just shouldn't run if class devices are real directories, it's an update for the symlink in the class directory. Nobody noticed that as long as the creation of sysfs files silently failed, and we both missed it before the merge, because we don't run SYSFS_DEPRECATED=y. Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: David Miller <davem@davemloft.net> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 13 10月, 2007 3 次提交
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由 Greg Kroah-Hartman 提交于
This makes it a bit more sane when trying to figure out how to clean up the ktype mess. Based on a larger patch from Kay Sievers Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
Move uevent specific logic from the core into kobject_uevent.c, which does no longer require to link the unused string array if hotplug is not compiled in. Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
This changes the uevent buffer functions to use a struct instead of a long list of parameters. It does no longer require the caller to do the proper buffer termination and size accounting, which is currently wrong in some places. It fixes a known bug where parts of the uevent environment are overwritten because of wrong index calculations. Many thanks to Mathieu Desnoyers for finding bugs and improving the error handling. Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 08 10月, 2007 1 次提交
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由 Dmitry Torokhov 提交于
We should only reparent to a class former class devices that form the base of class hierarchy. Nested devices should still grow from their real parents. Signed-off-by: NDmitry Torokhov <dtor@mail.ru> Tested-by: NAndrey Borzenkov <arvidjaar@mail.ru> Tested-by: NAnssi Hannula <anssi.hannula@gmail.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 27 9月, 2007 1 次提交
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由 Linus Torvalds 提交于
As Stephen Hemminger says, this is a "belt and suspenders" patch that zeroes the envp array at allocation time, even though all the users should NULL-terminate it anyway (and we've hopefully fixed everybody that doesn't do that). And we'll apparently clean the whole envp thing up for 2.6.24 anyway. But let's just be robust, and do both this *and* make sure that all users are doing the right thing. Acked-by: NStephen Hemminger <shemminger@linux-foundation.org> Acked-by: NGreg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 20 9月, 2007 1 次提交
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由 Dmitry Torokhov 提交于
Nested class devices used to have 'device' symlink point to a real (physical) device instead of a parent class device. When converting subsystems to struct device we need to keep doing what class devices did if CONFIG_SYSFS_DEPRECATED is Y, otherwise parts of udev break. Signed-off-by: NDmitry Torokhov <dtor@mail.ru> Cc: Kay Sievers <kay.sievers@vrfy.org> Acked-by: NGreg KH <greg@kroah.com> Tested-by: NAnssi Hannula <anssi.hannula@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 31 7月, 2007 2 次提交
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由 Cornelia Huck 提交于
driver core: revert "device" link creation check Commit 2ee97caf introduced an extra check on when to create the "device" symlink. Unfortunately, this breaks input, so let's revert to the old behaviour. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Acked-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Greg Kroah-Hartman 提交于
This prevents the extern declaration in the driver core. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 19 7月, 2007 2 次提交
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由 Cornelia Huck 提交于
Check for return value of sysfs_create_link() in device_add() and device_rename(). Add helper functions device_add_class_symlinks() and device_remove_class_symlinks() to make the code easier to read. [akpm@linux-foundation.org: fix unused var warnings] Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Acked-by: NJeff Garzik <jeff@garzik.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
This allows the uevent file to handle any type of uevent action to be triggered by userspace instead of just the "add" uevent. Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 12 7月, 2007 3 次提交
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由 Tejun Heo 提交于
devt_attr and uevent_attr are either allocated dynamically with or embedded in device and class_device as they needed their owner field set to the module implementing the driver. Now that sysfs implements immediate disconnect and owner field removed from struct attribute, there is no reason to do this. Remove these attributes from [class_]device and use static attribute structures instead. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Tejun Heo 提交于
sysfs is now completely out of driver/module lifetime game. After deletion, a sysfs node doesn't access anything outside sysfs proper, so there's no reason to hold onto the attribute owners. Note that often the wrong modules were accounted for as owners leading to accessing removed modules. This patch kills now unnecessary attribute->owner. Note that with this change, userland holding a sysfs node does not prevent the backing module from being unloaded. For more info regarding lifetime rule cleanup, please read the following message. http://article.gmane.org/gmane.linux.kernel/510293 (tweaked by Greg to not delete the field just yet, to make it easier to merge things properly.) Signed-off-by: NTejun Heo <htejun@gmail.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Cornelia Huck 提交于
This converts code of the form if ((error = some_func())) goto fixup; to error = some_func(); if (error) goto fixup; Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 09 6月, 2007 1 次提交
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由 Kay Sievers 提交于
Class-devices created by "struct class_device" are going to be replaced by "struct device". Keep the deprecated PHYSDEV* variables for the already "deprecated" struct class_device" devices. Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 03 5月, 2007 2 次提交
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由 Greg Kroah-Hartman 提交于
We need to work on cleaning up the relationship between kobjects, ksets and ktypes. The removal of 'struct subsystem' is the first step of this, especially as it is not really needed at all. Thanks to Kay for fixing the bugs in this patch. Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Greg Kroah-Hartman 提交于
Declaring an array of PAGE_SIZE does bad things for people running with 4k stacks... Thanks to Tilman Schmidt for tracking this down. Cc: Tilman Schmidt <tilman@imap.cc> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 28 4月, 2007 10 次提交
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由 Alan Stern 提交于
This patch (as896b) fixes an oversight in the design of device_schedule_callback(). It is necessary to acquire a reference to the module owning the callback routine, to prevent the module from being unloaded before the callback can run. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Cc: Satyam Sharma <satyam.sharma@gmail.com> Cc: Neil Brown <neilb@suse.de> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
In the future we will allow the uevent type to be written to the uevent file to trigger the different types of uevents. But for now, as we only support the ADD event, warn if userspace tries to write anything else to this file. Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
This allows sysfs to show the environment variables that are available if the uevent happens. This lets userspace not have to cache all of this information as the kernel already knows it. Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Cornelia Huck 提交于
Suppress uevents for devices if uevent_suppress is set via dev_uevent_filter(). This makes the driver core suppress all device uevents, not just the add event in device_add(). Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Cornelia Huck 提交于
Don't fail bus_attach_device() if the device cannot be bound. If dev->driver has been specified, reset it to NULL if device_bind_driver() failed and add the device as an unbound device. As a result, bus_attach_device() now cannot fail, and we can remove some checking from device_add(). Also remove an unneeded check in bus_rescan_devices_helper(). Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
If "name" of a device_type is specified, the uevent will contain the device_type name in the DEVTYPE variable. This helps userspace to distingiush between different types of devices, belonging to the same subsystem. Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Dmitry Torokhov 提交于
Driver core: use attribute groups in struct device_type Attribute groups are more flexible than attribute lists (an attribute list can be represented by anonymous group) so switch struct device_type to use them. Also rework attribute creation for devices so that they all cleaned up properly in case of errors. Signed-off-by: NDmitry Torokhov <dtor@mail.ru> Cc: Kay Sievers <kay.sievers@novell.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jean Delvare 提交于
As the new-style class devices (as opposed to old-style struct class_device) are becoming more widely used, I noticed that the dev_printk-based functions are not working properly with these. New-style class devices have no driver nor bus, almost by definition, and as a result dev_driver_string(), which is used as the first parameter of dev_printk, resolves to an empty string. This causes entries like the following to show in my logs: i2c-2: adapter [SMBus stub driver] registered Notice the unaesthetical leading whitespace. In order to fix this problem, I suggest that we extend dev_driver_string to deal with new-style class devices: Signed-off-by: NJean Delvare <khali@linux-fr.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
- uses a kset in "struct class" to keep track of all directories belonging to this class - merges with the /sys/devices/virtual logic. - removes the namespace-dir if the last member of that class leaves the directory. There may be locking or refcounting fixes left, I stopped when it seemed to work with network and sound modules. :) From: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Dmitriy Monakhov 提交于
- At the moment we jump here device was't added to dev->class->devices list yet. Signed-off-by: NMonakhov Dmitriy <dmonakhov@openvz.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 05 4月, 2007 1 次提交
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由 Andrew Morton 提交于
Revert all this. It can cause device-mapper to receive a different major from earlier kernels and it turns out that the Amanda backup program (via GNU tar, apparently) checks major numbers on files when performing incremental backups. Which is a bit broken of Amanda (or tar), but this feature isn't important enough to justify the churn. Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 16 3月, 2007 1 次提交
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由 Alan Stern 提交于
This patch (as868) adds a helper routine for device drivers that need to set up a callback to perform some action in a different process's context. This is intended for use by attribute methods that want to unregister themselves or their parent device. Attribute method calls are mutually exclusive with unregistration, so such actions cannot be taken directly. Two attribute methods are converted to use the new helper routine: one for SCSI device deletion and one for System/390 ccwgroup devices. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Cc: Hugh Dickins <hugh@veritas.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 10 3月, 2007 2 次提交
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由 Johannes Berg 提交于
In wireless we'd like to allow renaming of the phy devices we surface in sysfs. The base wireless code, however, can be built modular and thus we need device_rename exported. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Greg Kroah-Hartman 提交于
This moves the device symlink back to sysfs even if CONFIG_SYSFS_DEPRECATED is enabled as too many userspace programs (well, HAL), still rely on this link to be present. I will rework the ability for sysfs to change layouts like this in the future, but for now, this patch should fix people's network connections. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 09 3月, 2007 1 次提交
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由 Tejun Heo 提交于
Some platform devices are driven without driver attached, so managed resources can be acquired without driver attached. Make sure such resources are released by calling devres_release_all() in device_del(). Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 24 2月, 2007 1 次提交
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由 James Simmons 提交于
When a device fails to register the class symlinks where not cleaned up. This left a symlink in the /sys/class/"device"/ directory that pointed to no where. This caused the sysfs_follow_link Oops I reported earlier. This patch cleanups up the symlink. Please apply. Thank you. Signed-Off: James Simmons <jsimmons@infradead.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 21 2月, 2007 1 次提交
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由 Andrew Morton 提交于
Several people have reported failures in dynamic major device number handling due to the recent changes in there to avoid handing out the local/experimental majors. Rolf reports that this is due to a gcc-4.1.0 bug. The patch refactors that code a lot in an attempt to provoke the compiler into behaving. Cc: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 10 2月, 2007 1 次提交
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由 Tejun Heo 提交于
Implement device resource management, in short, devres. A device driver can allocate arbirary size of devres data which is associated with a release function. On driver detach, release function is invoked on the devres data, then, devres data is freed. devreses are typed by associated release functions. Some devreses are better represented by single instance of the type while others need multiple instances sharing the same release function. Both usages are supported. devreses can be grouped using devres group such that a device driver can easily release acquired resources halfway through initialization or selectively release resources (e.g. resources for port 1 out of 4 ports). This patch adds devres core including documentation and the following managed interfaces. * alloc/free : devm_kzalloc(), devm_kzfree() * IO region : devm_request_region(), devm_release_region() * IRQ : devm_request_irq(), devm_free_irq() * DMA : dmam_alloc_coherent(), dmam_free_coherent(), dmam_declare_coherent_memory(), dmam_pool_create(), dmam_pool_destroy() * PCI : pcim_enable_device(), pcim_pin_device(), pci_is_managed() * iomap : devm_ioport_map(), devm_ioport_unmap(), devm_ioremap(), devm_ioremap_nocache(), devm_iounmap(), pcim_iomap_table(), pcim_iomap(), pcim_iounmap() Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 08 2月, 2007 2 次提交
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由 Kay Sievers 提交于
For the block subsystem, we want to delay all uevents until the disk has been scanned and allpartitons are already created before the first event is sent out. Signed-off-by: NKay Sievers <kay.sievers@novell.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
This allows us to add type specific attributes, uevent vars and release funtions. A subsystem can carry different types of devices like the "block" subsys has disks and partitions. Both types create a different set of attributes, but belong to the same subsystem. This corresponds to the low level objects: kobject -> device (object/device data) kobj_type -> device_type (type of object/device we are embedded in) kset -> class/bus (list of objects/devices of a subsystem) Signed-off-by: NKay Sievers <kay.sievers@novell.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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