Stephen Rothwell [Tue, 30 Dec 2008 17:06:15 +0000 (17:06 +0000)]
powerpc/cell: Bitops work on unsigned longs
So change the flags member of struct spu from u64 to unsigned long.
This change will also prevent some warnings when we change u64 to unsigned
long long.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Matthias Fuchs [Tue, 30 Dec 2008 00:59:38 +0000 (00:59 +0000)]
powerpc: Add ioctls for RS485 mode control of serial drivers
These ioctls take a struct serial_rs485
(see linux/serial.h) as argument. They are already available
on x86. This patch adds them for the powerpc architecture.
Signed-off-by: Matthias Fuchs <mfuchs@ma-fu.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Paul Mackerras [Sun, 28 Dec 2008 14:12:57 +0000 (14:12 +0000)]
powerpc: Fix pciconfig_iobase system call on PCI-Express powermac
X has been failing to start on my quad G5 powermac since commit 1fd0f52583a85b21a394201b007bc1ee104b235d ("powerpc: Fix domain numbers
in /proc on 64-bit") went in. The reason is that the change allows X
to see the PCI-PCI bridge above the video card (previously it was
obscured by the fact that there were two "00" directories in
/proc/bus/pci), and the pciconfig_iobase system call on the bridge is
failing because of a hack that we have to return information about the
AGP bus when X asks about bus 0. This machine doesn't have an AGP bus
(it has PCI Express) and so the pciconfig_iobase call is returning -1,
which ultimately causes X to fail to start.
This fixes it by checking that we have an AGP bridge before
redirecting the pciconfig_iobase call to return information about the
AGP bus. With this, X starts successfully both on a quad G5 with
PCI Express and on an older dual G5 with AGP.
Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Nathan Lynch [Tue, 23 Dec 2008 18:55:54 +0000 (18:55 +0000)]
powerpc: Rewrite sysfs processor cache info code
The current code for providing processor cache information in sysfs
has the following deficiencies:
- several complex functions that are hard to understand
- implicit recursion (cache_desc_release -> kobject_put -> cache_desc_release)
- explicit recursion (create_cache_index_info)
- use of two per-cpu arrays when one would suffice
- duplication of work on systems where CPUs share cache
Also, when I looked at implementing support for a shared_cpu_map
attribute, it was pretty much impossible to handle hotplug without
checking every single online CPU's cache_desc list and fixing things
up... not that this is a hot path, but it would have introduced
O(n^2)-ish behavior during boot. Addressing this involved rethinking
the core data structures used, which didn't lend itself to an
incremental approach.
This implementation maintains a "forest" (potentially more than one
tree) of cache objects which reflects the system's cache topology.
Cache objects are instantiated as needed as CPUs come online. A
per-cpu array is used mainly for sysfs-related bookkeeping; the
objects in the array just point to the appropriate points in the
forest.
This maintains compatibility with the existing code and includes some
enhancements:
- Implement the shared_cpu_map attribute, which is essential for
enabling userspace to discover the system's overall cache topology.
- Use cache-block-size properties if cache-line-size is not available.
I chose to place this implementation in a new file since it would have
roughly doubled the size of sysfs.c, which is already kind of messy.
Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Grant Likely [Fri, 19 Dec 2008 14:57:20 +0000 (14:57 +0000)]
powerpc: Copy bootable images in the default install script
This patch makes the default install script (arch/powerpc/boot/install.sh)
copy the bootable image files into the install directory. Before this
patch only the vmlinux image file was copied.
This patch makes the default 'make install' command useful for embedded
development when $(INSTALL_PATH) is set in the environment.
As a side effect, this patch changes the calling convention of the
install.sh script. Instead of a single 5th parameter, the script is now
passed a list of all the target images stored in the $(image-y) Makefile
variable. This should be backwards compatible with existing install scripts
since it just adds additional arguments and does not change existing ones.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Dave Hansen [Tue, 9 Dec 2008 08:21:35 +0000 (08:21 +0000)]
powerpc/mm: Make careful_allocation() return virtual addrs
Since we memset() the result in both of the uses here,
just make careful_alloc() return a virtual address.
Also, add a separate variable to store the physial
address that comes back from the lmb_alloc() functions.
This makes it less likely that someone will screw it up
forgetting to convert before returning since the vaddr
is always in a void* and the paddr is always in an
unsigned long.
I admit this is arbitrary since one of its users needs
a paddr and one a vaddr, but it does remove a good
number of casts.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
If we fail a bootmem allocation, the bootmem code itself
panics. No need to redo it here.
Also change the wording of the other panic. We don't
strictly have to allocate memory on the specified node.
It is just a hint and that node may not even *have* any
memory on it. In that case we can and do fall back to
other nodes.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Nicolas Palix [Wed, 3 Dec 2008 00:25:03 +0000 (00:25 +0000)]
powerpc/powermac: Add missing of_node_put
This patch fixes some unbalanced OF node references in the
powermac code
Signed-off-by: Nicolas Palix <npalix@diku.dk> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
There's a problem on some embedded platforms when we re-assign
everything on PCI, such as 44x. The generic code tries to avoid
assigning devices to addresses overlapping the low legacy
addresses such as VGA hard decoded areas using constants that
are unfortunately no good for us, as they don't take into account
the address translation we do to access PCI busses.
Thus we end up allocating things like IO BARs to 0, which is
technically legal, but will shadow hard decoded ports for use
by things like VGA cards.
This works around it by attempting to reserve legacy regions
before we try to assign addresses.
NOTE: This may have nasty side effects in cases I haven't tested
yet:
- We try to use FW mappings (ie. powermac) and the FW has allocated
a conflicting address over those legacy regions. This will typically
happen. I would expect the new code to just fail with an informative
message without harm but I haven't had a chance to test that scenario
yet.
- A device with fixed BARs overlapping those legacy addresses such
as an IDE controller in legacy mode is in the system. I don't know
for sure yet what will happen there, I have to test :-)
Ideally, we should change PCIBIOS_MIN_IO/MIN_MEM accross the board
to take a bus pointer so they can provide appropriate per-bus translated
values to the generic code but that's a more invasive patch. I will
do that in the future, but in the meantime, this fixes the problem
locally
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Convert to net_device_ops and internal net_device_stats
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Work around branch tracer warning.
sparc64: Fix unsigned long long warnings in drivers.
sparc64: Use unsigned long long for u64.
sparc: refactor code in fault_32.c
sparc64: refactor code in init_64.c
sparc64: refactor code in viohs.c
sparc: make proces_ver_nack a bit more readable
Convert to net_device_ops and use internal net_device_stats in bnep
device.
Note: no need for bnep_net_ioctl since if ioctl is not set, then
dev_ifsioc handles it by returning -EOPNOTSUPP
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Thu, 8 Jan 2009 01:21:24 +0000 (17:21 -0800)]
Merge branch 'for-2.6.29' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.29' of git://linux-nfs.org/~bfields/linux: (67 commits)
nfsd: get rid of NFSD_VERSION
nfsd: last_byte_offset
nfsd: delete wrong file comment from nfsd/nfs4xdr.c
nfsd: git rid of nfs4_cb_null_ops declaration
nfsd: dprint each op status in nfsd4_proc_compound
nfsd: add etoosmall to nfserrno
NFSD: FIDs need to take precedence over UUIDs
SUNRPC: The sunrpc server code should not be used by out-of-tree modules
svc: Clean up deferred requests on transport destruction
nfsd: fix double-locks of directory mutex
svc: Move kfree of deferral record to common code
CRED: Fix NFSD regression
NLM: Clean up flow of control in make_socks() function
NLM: Refactor make_socks() function
nfsd: Ensure nfsv4 calls the underlying filesystem on LOCKT
SUNRPC: Ensure the server closes sockets in a timely fashion
NFSD: Add documenting comments for nfsctl interface
NFSD: Replace open-coded integer with macro
NFSD: Fix a handful of coding style issues in write_filehandle()
NFSD: clean up failover sysctl function naming
...
V4L/DVB (10191a): Update MAINTAINERS entries on media drivers
This patch updates the MAINTAINERS entries for the media drivers.
We are doing a few changes during 2009 to improve patch handling for
drivers/media stuff.
Currently, v4l-dvb-maintainer list at linuxtv.org were used to to be v4l/dvb
driver maintainers ML, in order to keep track of patch merge requests and to
receive bug fixes. This list allows posting for everybody, but, in order to
avoid spam, the user subscribe/unsubscribe at the ML is moderated. Other
development discussions and end-user forums happened on two separated ML (one
for V4L and another for DVB).
At the beginning of 2009, we've created linux-media@vger.kernel.org, meaning to
be the main upstream development mailing list for drivers/media, including V4L
and DVB core and drivers.
The choice for vger.kernel.org were due to the fact that most of upstream lists
are there. Also, its anti-spam filtering rules are better than what we
currently have at linuxtv.org.
For now, both video4linux-list and linux-dvb ML will remain active, but more
focused on end users. It is expected that those lists will gradually be
replaced also by linux-media@vger.kernel.org.
This patch reflect those changes at linux MAINTAINERS file.
Since the development and bug fix discussions will now happen at
linux-media@vger.kernel.org, this patch does the following changes
- replaces v4l-dvb-maintainer ML for the new
linux-media@vger.kernel.org;
- replaces video4linux ML for the new linux-media@vger.kernel.org;
While here, it also:
- Fixes the existing -git tree entries for drivers/media (since the
repository name changed);
- Adds the missing drivers/media -git tree entry on a few maintainers
entries that don't point to a tree.
As Randy Dunlap <randy.dunlap@oracle.com> reported, cx88 has some compilation issues:
drivers/built-in.o: In function `cx88_call_i2c_clients':
(.text+0x20af17): undefined reference to `videobuf_dvb_get_frontend'
drivers/built-in.o: In function `cx8802_probe':
cx88-mpeg.c:(.devinit.text+0x268c4): undefined reference to `videobuf_dvb_alloc_frontend'
cx88-mpeg.c:(.devinit.text+0x268ea): undefined reference to `videobuf_dvb_dealloc_frontends'
After carefully examining the code, with the current code, several cx88 drivers
(cx8800, cx8802, cx88_dvb and cx88_blackbird) should be compiled as a module,
if one of them is marked as such. Just fixing Kconfig could create a very complex
set of rules. Also, this hides a problem with the current approach where the dvb
functionality weren't confined inside dvb module.
What happens is that:
- cx88-i2c (part of cx8800) has some special rules if DVB;
- cx88-mpeg (cx8802 module) has also part of DVB init code;
- cx88-dvb has the rest of the dvb code;
- cx88-blackbird can be used with cx88-mpeg, having cx88-dvb or not.
So, instead of doing some tricks at Kconfig and wait for a next breakage,
this patch moves the dvb code inside cx88-i2c and cx88-mpeg into cx88-dvb.
Another problem is that cx8802 were being compiled, even without cx88-dvb
and cx88-blackbird modules.
While on this code, let's fix also a reported problem:
http://www.linuxtv.org/pipermail/linux-dvb/2009-January/031225.html
A solution for the issue were proposed here:
http://www.mail-archive.com/linux-media@vger.kernel.org/msg00021.html
Thanks to Randy, Andy, Gregoire and Thomas for helping us to detect
and solve the issues.
V4L/DVB (10189): dm1105: Fix build with INPUT=m and DVB_DM1105=y
As reported by Randy Dunlap <randy.dunlap@oracle.com>:
With CONFIG_INPUT=m and CONFIG_DVB_DM1105=y:
drivers/built-in.o: In function `input_sync':
dm1105.c:(.text+0x120c33): undefined reference to `input_event'
drivers/built-in.o: In function `dm1105_emit_key':
dm1105.c:(.text+0x120c6c): undefined reference to `input_event'
dm1105.c:(.text+0x120c82): undefined reference to `input_event'
dm1105.c:(.text+0x120cb2): undefined reference to `input_event'
dm1105.c:(.text+0x120cd1): undefined reference to `input_event'
drivers/built-in.o: In function `dm1105_ir_init':
(.devinit.text+0xd8ae): undefined reference to `input_allocate_device'
drivers/built-in.o: In function `dm1105_ir_init':
(.devinit.text+0xd9f6): undefined reference to `input_register_device'
drivers/built-in.o: In function `dm1105_ir_init':
(.devinit.text+0xda09): undefined reference to `input_free_device'
drivers/built-in.o: In function `dm1105_ir_exit':
(.devexit.text+0xcde): undefined reference to `input_unregister_device'
This is due to the lack of a dependency between dm1105 and CONFIG_INPUT
Cc: Igor M. Liplianin <liplianin@me.by> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Julia Lawall [Sat, 3 Jan 2009 19:53:10 +0000 (16:53 -0300)]
V4L/DVB (10185): Use negated usb_endpoint_xfer_control, etc
This patch extends 134179823b3ca9c8b98e0631906459dbb022ff9b by using
usb_endpoint_xfer_control, usb_endpoint_xfer_isoc, usb_endpoint_xfer_bulk,
and usb_endpoint_xfer_int in the negated case as well.
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
Don't call tda8290_init_tuner unless we have either a TDA8275 or TDA8275A
present. Calling this function will cause a TDA18271 to get sick, so we
should only call it when needed.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
V4L/DVB (10181): v4l2-device: Fix some sparse warnings
/home/v4l/master/v4l/v4l2-device.c:32:2: warning: Using plain integer as NULL pointer
/home/v4l/master/v4l/v4l2-device.c:64:2: warning: Using plain integer as NULL pointer
V4L/DVB (10180): drivers/media: Fix a number of sparse warnings
anysee.c:44:5: warning: symbol 'dvb_usb_anysee_delsys' was not declared. Should it be static?
cx24116.c:378:3: warning: symbol 'CX24116_MODFEC_MODES' was not declared. Should it be static?
stb0899_algo.c:57:5: warning: symbol 'stb0899_get_srate' was not declared. Should it be static?
stb0899_algo.c:766:6: warning: symbol 'Log2Int' was not declared. Should it be static?
stb0899_drv.c:137:20: warning: symbol 'stb0899_quant_tab' was not declared. Should it be static?
stb0899_drv.c:180:20: warning: symbol 'stb0899_est_tab' was not declared. Should it be static?
stb0899_drv.c:220:5: warning: symbol '_stb0899_read_reg' was not declared. Should it be static?
budget-ci.c:1348:23: warning: symbol 'tt3200_stb6100_config' was not declared. Should it be static?
/home/v4l/master/v4l/cx25840-core.c:190:6: warning: symbol 'cx25840_work_handler' was not declared. Should it be static?
/home/v4l/master/v4l/m5602_s5k83a.c:116:6: warning: symbol 's5k83a_dump_registers' was not declared. Should it be static?
/home/v4l/master/v4l/tda8290.c:233:7: warning: symbol 'i' shadows an earlier one
/home/v4l/master/v4l/tda8290.c:178:3: warning: symbol 'fm_mode' was not declared. Should it be static?
V4L/DVB (10178): dvb_frontend: Fix some sparse warnings due to static symbols
/home/v4l/master/v4l/dvb_frontend.c:838:19: warning: symbol 'dtv_cmds' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1035:6: warning: symbol 'dtv_property_dump' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1066:5: warning: symbol 'is_legacy_delivery_system' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1080:6: warning: symbol 'dtv_property_cache_sync' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1132:6: warning: symbol 'dtv_property_legacy_params_sync' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1187:6: warning: symbol 'dtv_property_adv_params_sync' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1222:6: warning: symbol 'dtv_property_cache_submit' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1253:5: warning: symbol 'dtv_property_process_get' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1362:5: warning: symbol 'dtv_property_process_set' was not declared. Should it be static?
/home/v4l/master/v4l/em28xx-core.c:396:25: warning: symbol 'outputs' was not declared. Should it be static?
/home/v4l/master/v4l/em28xx-input.c:324:6: warning: symbol 'em28xx_ir_start' was not declared. Should it be static?
/home/v4l/master/v4l/em28xx-cards.c:1925:5: warning: symbol 'em28xx_init_dev' was not declared. Should it be static?
Linus Torvalds [Wed, 7 Jan 2009 23:41:01 +0000 (15:41 -0800)]
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (98 commits)
PCI PM: Put PM callbacks in the order of execution
PCI PM: Run default PM callbacks for all devices using new framework
PCI PM: Register power state of devices during initialization
PCI PM: Call pci_fixup_device from legacy routines
PCI PM: Rearrange code in pci-driver.c
PCI PM: Avoid touching devices behind bridges in unknown state
PCI PM: Move pci_has_legacy_pm_support
PCI PM: Power-manage devices without drivers during suspend-resume
PCI PM: Add suspend counterpart of pci_reenable_device
PCI PM: Fix poweroff and restore callbacks
PCI: Use msleep instead of cpu_relax during ASPM link retraining
PCI: PCIe portdrv: Add kerneldoc comments to remining core funtions
PCI: PCIe portdrv: Rearrange code so that related things are together
PCI: PCIe portdrv: Fix suspend and resume of PCI Express port services
PCI: PCIe portdrv: Add kerneldoc comments to some core functions
x86/PCI: Do not use interrupt links for devices using MSI-X
net: sfc: Use pci_clear_master() to disable bus mastering
PCI: Add pci_clear_master() as opposite of pci_set_master()
PCI hotplug: remove redundant test in cpq hotplug
PCI: pciehp: cleanup register and field definitions
...
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (123 commits)
wimax/i2400m: add CREDITS and MAINTAINERS entries
wimax: export linux/wimax.h and linux/wimax/i2400m.h with headers_install
i2400m: Makefile and Kconfig
i2400m/SDIO: TX and RX path backends
i2400m/SDIO: firmware upload backend
i2400m/SDIO: probe/disconnect, dev init/shutdown and reset backends
i2400m/SDIO: header for the SDIO subdriver
i2400m/USB: TX and RX path backends
i2400m/USB: firmware upload backend
i2400m/USB: probe/disconnect, dev init/shutdown and reset backends
i2400m/USB: header for the USB bus driver
i2400m: debugfs controls
i2400m: various functions for device management
i2400m: RX and TX data/control paths
i2400m: firmware loading and bootrom initialization
i2400m: linkage to the networking stack
i2400m: Generic probe/disconnect, reset and message passing
i2400m: host/device procotol and core driver definitions
i2400m: documentation and instructions for usage
wimax: Makefile, Kconfig and docbook linkage for the stack
...
* git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-async:
async: don't do the initcall stuff post boot
bootchart: improve output based on Dave Jones' feedback
async: make the final inode deletion an asynchronous event
fastboot: Make libata initialization even more async
fastboot: make the libata port scan asynchronous
fastboot: make scsi probes asynchronous
async: Asynchronous function calls to speed up kernel boot
David Miller [Wed, 7 Jan 2009 23:30:05 +0000 (15:30 -0800)]
topology: Fix sparc64 build.
Due to changeset ba84be2338d3a2b6020d39279335bb06fcd332e1 ("remove
linux/hardirq.h from asm-generic/local.h") the sparc64 build started
failing on drivers/base/topology.c:
drivers/base/topology.c: In function ‘show_physical_package_id’:
drivers/base/topology.c:103: error: implicit declaration of function ‘cpu_data’
drivers/base/topology.c:103: error: request for member ‘proc_id’ in something not a structure or union
drivers/base/topology.c: In function ‘show_core_id’:
drivers/base/topology.c:106: error: request for member ‘core_id’ in something not a structure or union
Adding the obvious fix of including asm/cpudata.h into asm/topology.h on
sparc64 doesn't fix it, in fact it makes things worse because of the
header file dependency chain:
include/linux/slub_def.h: In function ‘kmalloc_large’:
include/linux/slub_def.h:209: error: implicit declaration of function ‘__get_free_pages’
include/linux/slub_def.h:209: error: ‘__GFP_COMP’ undeclared (first use in this function)
include/linux/slub_def.h:209: error: (Each undeclared identifier is reported only once
include/linux/slub_def.h:209: error: for each function it appears in.)
include/linux/slub_def.h:209: warning: cast to pointer from integer of different size
The simplest thing to do is to add yet another one-off hack like parts
of the guilty changeset did, by putting an explicit linux/hardirq.h
include into drivers/base/topology.c
Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Benny Halevy [Mon, 15 Dec 2008 17:42:03 +0000 (19:42 +0200)]
nfsd: last_byte_offset
refactor the nfs4 server lock code to use last_byte_offset
to compute the last byte covered by the lock. Check for overflow
so that the last byte is set to NFS4_MAX_UINT64 if offset + len
wraps around.
Also, use NFS4_MAX_UINT64 for ~(u64)0 where appropriate.
Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This patch fixes an rcutorture bug found by Eric Sesterhenn that
resulted in oopses in response to "rmmod rcutorture". The problem
was in some new code that attempted to handle the case where a system
is shut down while rcutorture is still running, for example, when
rcutorture is built into the kernel so that it cannot be removed.
The fix causes the rcutorture threads to "park" in an
schedule_timeout_uninterruptible(MAX_SCHEDULE_TIMEOUT) rather than
trying to get them to terminate cleanly. Concurrent shutdown and
rmmod is illegal.
I believe that this is 2.6.29 material, as it is used in some testing
setups.
For reference, here are the rcutorture operating modes:
CONFIG_RCU_TORTURE_TEST=m
This is the normal rcutorture build. Use "modprobe rcutorture"
(with optional arguments) to start, and "rmmod rcutorture" to
stop. If you shut the system down without doing the rmmod, you
should see console output like:
rcutorture thread rcu_torture_writer parking due to system shutdown
Same as above, except that the torturing starts during early
boot. Only for the stout of heart and strong of stomach.
The same /proc entry noted above may be used to control the
test.
Located-by: Eric Sesterhenn <snakebyte@gmx.de> Tested-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Dean Hildebrand [Mon, 15 Dec 2008 17:40:15 +0000 (19:40 +0200)]
nfsd: add etoosmall to nfserrno
Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Andrea Borgia [Wed, 7 Jan 2009 21:58:50 +0000 (22:58 +0100)]
ALSA: preliminary support for Toshiba SB-0500
The Toshiba Multimedia Center SB-0500 is a rebranded version of the
Creative Technology SB Live! 24-bit External: it shares the same chipset
and only has minor cosmetic differences. Remote controller works with
alsa_usb module, basic audio is there and mixer controls are mostly
untested.
Signed-off-by: Andrea Borgia <andrea@borgia.bo.it> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Kevin Hilman [Wed, 26 Nov 2008 05:46:55 +0000 (21:46 -0800)]
OMAP3: PM: Ensure modem is reset during PRCM init
Rogue bootloaders may enable the modem and thus keep the
D2D power- and clock-domains from going into retention.
Reset modem on boot to be sure it is in known state.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Tom Tucker [Mon, 5 Jan 2009 21:21:19 +0000 (15:21 -0600)]
svc: Clean up deferred requests on transport destruction
A race between svc_revisit and svc_delete_xprt can result in
deferred requests holding references on a transport that can never be
recovered because dead transports are not enqueued for subsequent
processing.
Check for XPT_DEAD in revisit to clean up completing deferrals on a dead
transport and sweep a transport's deferred queue to do the same for queued
but unprocessed deferrals.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Tero Kristo [Wed, 12 Nov 2008 09:42:10 +0000 (11:42 +0200)]
PM: OMAP3: Make sure clk_disable_unused() order is correct
Current implementation will disable clocks in the order defined in clock34xx.h,
at least DPLL4_M2X2 will hang in certain cases (and prevent retention / off)
if clocks are not disabled in correct order. This patch makes sure the parent
clocks will be active when disabling a clock.
Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Kevin Hilman [Mon, 8 Dec 2008 17:38:14 +0000 (09:38 -0800)]
OMAP3: PM: UART: disable clocks when idle
This patch allows the UART clocks to be disabled when the OMAP UARTs
are inactive, thus permitting the chip to hit retention in idle.
After the timeout of an activity timer, each UART is allowed to
disable its clocks so the system can enter retention. The activity
timer is (re)activated on any UART interrupt, UART wake event or any
IO pad wakeup. The actual disable of the UART clocks is done in the
'prepare_idle' hook called from the OMAP idle loop.
While the activity timer is active, the smart-idle mode of the UART is
also disabled. This is due to a "feature" of the UART module that
after a UART wakeup, the smart-idle mode may be entered before the
UART has communicated the interrupt, or upon TX, an idle mode may be
entered before the TX FIFOs are emptied.
Upon suspend, the 'prepare_suspend' hook cancels any pending activity
timers and allows the clocks to be disabled.
To enable the clock-disabling feature of this patch, do
# echo 1 > /sys/power/clocks_off_while_idle
Special thanks to Tero Kristo for the initial ideas and first versions
of UART idle support, and to Jouni Hogander for extra testing and
bugfixes.
Tested on OMAP3 (Beagle, custom HW) and OMAP2 (n810)
Cc: Tero Kristo <tero.kristo@nokia.com> Cc: Jouni Hogander <jouni.hogander@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
projects / linux-2.6-omap-h63xx.git / log