23 Jun, 2006
36 commits
-
Give the statfs superblock operation a dentry pointer rather than a superblock
pointer.This complements the get_sb() patch. That reduced the significance of
sb->s_root, allowing NFS to place a fake root there. However, NFS does
require a dentry to use as a target for the statfs operation. This permits
the root in the vfsmount to be used instead.linux/mount.h has been added where necessary to make allyesconfig build
successfully.Interest has also been expressed for use with the FUSE and XFS filesystems.
Signed-off-by: David Howells
Acked-by: Al Viro
Cc: Nathan Scott
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Extend the get_sb() filesystem operation to take an extra argument that
permits the VFS to pass in the target vfsmount that defines the mountpoint.The filesystem is then required to manually set the superblock and root dentry
pointers. For most filesystems, this should be done with simple_set_mnt()
which will set the superblock pointer and then set the root dentry to the
superblock's s_root (as per the old default behaviour).The get_sb() op now returns an integer as there's now no need to return the
superblock pointer.This patch permits a superblock to be implicitly shared amongst several mount
points, such as can be done with NFS to avoid potential inode aliasing. In
such a case, simple_set_mnt() would not be called, and instead the mnt_root
and mnt_sb would be set directly.The patch also makes the following changes:
(*) the get_sb_*() convenience functions in the core kernel now take a vfsmount
pointer argument and return an integer, so most filesystems have to change
very little.(*) If one of the convenience function is not used, then get_sb() should
normally call simple_set_mnt() to instantiate the vfsmount. This will
always return 0, and so can be tail-called from get_sb().(*) generic_shutdown_super() now calls shrink_dcache_sb() to clean up the
dcache upon superblock destruction rather than shrink_dcache_anon().This is required because the superblock may now have multiple trees that
aren't actually bound to s_root, but that still need to be cleaned up. The
currently called functions assume that the whole tree is rooted at s_root,
and that anonymous dentries are not the roots of trees which results in
dentries being left unculled.However, with the way NFS superblock sharing are currently set to be
implemented, these assumptions are violated: the root of the filesystem is
simply a dummy dentry and inode (the real inode for '/' may well be
inaccessible), and all the vfsmounts are rooted on anonymous[*] dentries
with child trees.[*] Anonymous until discovered from another tree.
(*) The documentation has been adjusted, including the additional bit of
changing ext2_* into foo_* in the documentation.[akpm@osdl.org: convert ipath_fs, do other stuff]
Signed-off-by: David Howells
Acked-by: Al Viro
Cc: Nathan Scott
Cc: Roland Dreier
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6: (44 commits)
[PATCH] I2C: I2C controllers go into right place on sysfs
[PATCH] hwmon-vid: Add support for Intel Core and Conroe
[PATCH] lm70: New hardware monitoring driver
[PATCH] hwmon: Fix the Kconfig header
[PATCH] i2c-i801: Merge setup function
[PATCH] i2c-i801: Better pci subsystem integration
[PATCH] i2c-i801: Cleanups
[PATCH] i2c-i801: Remove PCI function check
[PATCH] i2c-i801: Remove force_addr parameter
[PATCH] i2c-i801: Fix block transaction poll loops
[PATCH] scx200_acb: Documentation update
[PATCH] scx200_acb: Mark scx200_acb_probe __init
[PATCH] scx200_acb: Use PCI I/O resource when appropriate
[PATCH] i2c: Mark block write buffers as const
[PATCH] i2c-ocores: Minor cleanups
[PATCH] abituguru: Fix fan detection
[PATCH] abituguru: Review fixes
[PATCH] abituguru: New hardware monitoring driver
[PATCH] w83792d: Add missing data access locks
[PATCH] w83792d: Fix setting the PWM value
... -
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/w1-2.6:
[PATCH] w1: warning fix
[PATCH] w1: clean up W1_CON dependency.
[PATCH] drivers/w1/w1.c: fix a compile error
[PATCH] W1: fix dependencies of W1_SLAVE_DS2433_CRC
[PATCH] W1: possible cleanups
[PATCH] W1: cleanups
[PATCH] w1 exports
[PATCH] w1: Use mutexes instead of semaphores.
[PATCH] w1: Make w1 connector notifications depend on connector.
[PATCH] w1: netlink: Mark netlink group 1 as unused.
[PATCH] w1: Move w1-connector definitions into linux/include/connector.h
[PATCH] w1: Userspace communication protocol over connector.
[PATCH] w1: Replace dscore and ds_w1_bridge with ds2490 driver.
[PATCH] w1: Added default generic read/write operations. -
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (27 commits)
[PATCH] PCI: nVidia quirk to make AER PCI-E extended capability visible
[PATCH] PCI: fix issues with extended conf space when MMCONFIG disabled because of e820
[PATCH] PCI: Bus Parity Status sysfs interface
[PATCH] PCI: fix memory leak in MMCONFIG error path
[PATCH] PCI: fix error with pci_get_device() call in the mpc85xx driver
[PATCH] PCI: MSI-K8T-Neo2-Fir: run only where needed
[PATCH] PCI: fix race with pci_walk_bus and pci_destroy_dev
[PATCH] PCI: clean up pci documentation to be more specific
[PATCH] PCI: remove unneeded msi code
[PATCH] PCI: don't move ioapics below PCI bridge
[PATCH] PCI: cleanup unused variable about msi driver
[PATCH] PCI: disable msi mode in pci_disable_device
[PATCH] PCI: Allow MSI to work on kexec kernel
[PATCH] PCI: AMD 8131 MSI quirk called too late, bus_flags not inherited ?
[PATCH] PCI: Move various PCI IDs to header file
[PATCH] PCI Bus Parity Status-broken hardware attribute, EDAC foundation
[PATCH] PCI: i386/x86_84: disable PCI resource decode on device disable
[PATCH] PCI ACPI: Rename the functions to avoid multiple instances.
[PATCH] PCI: don't enable device if already enabled
[PATCH] PCI: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
... -
Add a revocation notification method to the key type and calls it whilst
the key's semaphore is still write-locked after setting the revocation
flag.The patch then uses this to maintain a reference on the task_struct of the
process that calls request_key() for as long as the authorisation key
remains unrevoked.This fixes a potential race between two processes both of which have
assumed the authority to instantiate a key (one may have forked the other
for example). The problem is that there's no locking around the check for
revocation of the auth key and the use of the task_struct it points to, nor
does the auth key keep a reference on the task_struct.Access to the "context" pointer in the auth key must thenceforth be done
with the auth key semaphore held. The revocation method is called with the
target key semaphore held write-locked and the search of the context
process's keyrings is done with the auth key semaphore read-locked.The check for the revocation state of the auth key just prior to searching
it is done after the auth key is read-locked for the search. This ensures
that the auth key can't be revoked between the check and the search.The revocation notification method is added so that the context task_struct
can be released as soon as instantiation happens rather than waiting for
the auth key to be destroyed, thus avoiding the unnecessary pinning of the
requesting process.Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Introduce SELinux hooks to support the access key retention subsystem
within the kernel. Incorporate new flask headers from a modified version
of the SELinux reference policy, with support for the new security class
representing retained keys. Extend the "key_alloc" security hook with a
task parameter representing the intended ownership context for the key
being allocated. Attach security information to root's default keyrings
within the SELinux initialization routine.Has passed David's testsuite.
Signed-off-by: Michael LeMay
Signed-off-by: David Howells
Signed-off-by: James Morris
Acked-by: Chris Wright
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change the 5th argument of snd_mpu401_uart_new() to bit flags
instead of a boolean. The argument takes bits that consist of
MPU401_INFO_XXX flags.
The callers that used the value 1 there are replaced with
MPU401_INFO_INTEGRATED.Signed-off-by: Takashi Iwai
-
Fix the description of cs5535audio driver in ALSA-Configuraiton.txt.
Now it supports only single device.Signed-off-by: Takashi Iwai
-
Fixed the description of snd-hda-intel driver in ALSA-Configuration.txt
document.Signed-off-by: Takashi Iwai
-
Remove obsolete descriptions about the dependency on CONFIG_ISA
for vxpocket and pdaudiocf drivers.Signed-off-by: Takashi Iwai
-
Enable the support of mpu401 PCI port only when mpu_port=1 module
option is given, i.e. disabled as default.
It turned out that the check of integrated midi port isn't perfect
and caused hang-ups on some boards.Signed-off-by: Takashi Iwai
-
Fixed a typo in writing-an-alsa-driver document.
Signed-off-by: Takashi Iwai
-
Remove unneeded read/write_size fields in proc text ops.
snd_info_set_text_ops() is fixed, too.Signed-off-by: Takashi Iwai
-
Added the support for Thinkpad X60/T60/Z60 laptops with AD1981HD codec.
Signed-off-by: Takashi Iwai
-
There are three types of messages between w1 core and userspace:
1. Events. They are generated each time new master or slave device found
either due to automatic or requested search.
2. Userspace commands. Includes read/write and search/alarm search comamnds.
3. Replies to userspace commands.From: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman -
Special file in each w1 slave device's directory called "rw" is created
each time new slave and no appropriate w1 family is registered.
"rw" file supports read and write operations, which allows to perform
almost any kind of operations. Each logical operation is a transaction
in nature, which can contain several (two or one) low-level operations.
Let's see how one can read EEPROM context:
1. one must write control buffer, i.e. buffer containing command byte
and two byte address. At this step bus is reset and appropriate device
is selected using either W1_SKIP_ROM or W1_MATCH_ROM command.
Then provided control buffer is being written to the wire.
2. reading. This will issue reading eeprom response.It is possible that between 1. and 2. w1 master thread will reset bus for
searching and slave device will be even removed, but in this case 0xff will
be read, since no device was selected.Signed-off-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman -
This driver implements support for the National Semiconductor LM70
temperature sensor.The LM70 temperature sensor chip supports a single temperature sensor.
It communicates with a host processor (or microcontroller) via an
SPI/Microwire Bus interface.Communication with the LM70 is simple: when the temperature is to be sensed,
the driver accesses the LM70 using SPI communication: 16 SCLK cycles
comprise the MOSI/MISO loop. At the end of the transfer, the 11-bit 2's
complement digital temperature (sent via the SIO line), is available in the
driver for interpretation. This driver makes use of the kernel's in-core
SPI support.Signed-off-by: Kaiwan N Billimoria
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
i2c-i801: Remove force_addr parameter
Remove the force_addr module parameter. It doesn't appear to ever
have been needed, and PCI resources shouldn't be arbitrarily
changed anyway.Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Documentation update for the scx200_acb driver. Hopefully this will
help future users.References:
[lm-sensors] Support of i2c-nscacb (April, May 2005)
http://lists.lm-sensors.org/pipermail/lm-sensors/2005-April/011756.html
http://lists.lm-sensors.org/pipermail/lm-sensors/2005-May/012043.html[lm-sensors] making a geode i2c slave driver (April 2006)
http://lists.lm-sensors.org/pipermail/lm-sensors/2006-April/015998.htmlKernel bug #6445
http://bugzilla.kernel.org/show_bug.cgi?id=6445Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
New hardware monitoring driver for the Abit uGuru
Signed-off-by: Hans de Goede
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Reword and complete certain parts of the hwmon sysfs-interface
documentation file. Hopefully this will make things clearer for new
driver authors.Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
This patch cleans up hwmon sysfs documentation file, plus introduces
the description of DC/PWM selection for fan speed control.Signed-off-by: Rudolf Marek
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
The following patch adds support for the OpenCores I2C controller IP
core (See http://www.opencores.org/projects.cgi/web/i2c/overview).Signed-off-by: Peter Korsgaard
Signed-off-by: Andrew Morton
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Improve the help text for CONFIG_HWMON to let the users know how they
pick the right hardware monitoring driver(s) for their system.Also fix a couple typos in the related documentation file and improve
some parts a bit.Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
One more motherboard confirmed to have an LM83 temperature sensor chip.
Thanks to Steven Hardy for reporting.Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Add support for the w83791d sensor chip. The w83791d hardware is
somewhere between the w83781d and the w83792d and this driver code
is derived from the code that supports those chips.Signed-off-by: Charles Spirakis
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Add support for the new nForce4 MCP51 (also known as nForce 410 or
430) and nForce4 MCP55 to the i2c-nforce2 driver. Some code changes
were required because the base I/O address registers have changed in
these versions. Standard BARs are now being used, while the original
nForce2 chips used non-standard ones.Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Properly document on which systems the i2c-piix4 SMBus driver will
refuse to load. Hopefully this will make it clearer for users, which
were often wondering why their destop or server systems were detected
as laptops.Closes bug #6429.
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Fix i2c-piix4 documentation typo.
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
This patch removes the fix_hstcfg option from the driver and related
SMBus Interrupt Select register magic because now we know what are
valid values for this register. This patch updates the documentation
and adds new IRQ mode check so we are sure not to miss any new
"unusual" value.The PCI quirk for users of fix_hstcfg was not developed because the
chipset lacks of subsystem ID registers and DMI is stated "To be
filled". Impact to existing systems is minimal because the problem
showed up on motherboards like 10 years back. On the other hand users
of newer Serverworks and HT1000 systems won't be misleaded by the
message suggesting to try the fix_hstcfg any more.Signed-off-by: Rudolf Marek
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
This patch adds the ATI IXP southbridges support to i2c-piix4,
as it turned out those chips are compatible with it.Signed-off-by: Rudolf Marek
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Extend the sysfs interface of hardware monitoring chips, by adding
individual alarm and beep files. Contrary to the old aggregated "alarms"
and "beeps" files, individual files constitute a standard way to access
the status information, making it finally possible to implement a
chip-independant hardware monitoring chip access library (once all
drivers have been added this new interface, that is.)If future drivers need more individual files, the interface will be
extended as needed at the same time these drivers are merged into the
kernel tree.Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
New driver (smsc47m192) which supports voltage and temperature
measurement features of SMSC LPC47M192 and LPC47M997 chips.Signed-off-by: Hartmut Rick
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Add LM82 temperature sensor support (similar to the LM83,
but less featureful).Signed-off-by: Jordan Crouse
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman
22 Jun, 2006
4 commits
-
Fix up the documentation. Apparently, I left unedited copy-paste results
in examples. Also, Alan helped me to improve the most confusing parts.Signed-off-by: Pete Zaitcev
Signed-off-by: Greg Kroah-Hartman -
The swsusp.txt documentation harshes confusingly on USB, and this patch
addresses the issue. It's harsh because it blames USB for some issues
that are generic to all drivers -- especially those supporting removable
media -- and it's confusing since it says that USB has the issue with
"suspend" not just swsusp ... while in reality, USB doesn't have the
issue when real system suspend states are used.Signed-off-by: David Brownell
Acked-by: Pavel Machek
Signed-off-by: Greg Kroah-Hartman -
Remove a chunk of duplicated documentation text.
Signed-off-by: Greg Kroah-Hartman
-
Using the class device pointer returned by tty_register_device() with
part 1 of the patch, attach the Gigaset drivers' "cidmode" sysfs entry
to its tty class device, where it can be found more easily by users
who do not know nor care which USB port the device is attached to.Signed-off-by: Hansjoerg Lipp
Signed-off-by: Tilman Schmidt
Signed-off-by: Greg Kroah-Hartman
