Ryan Haasken [Tue, 16 Aug 2016 20:18:32 +0000 (16:18 -0400)]
staging: lustre: libcfs: Only dump log once per sec. to avoid EEXIST
Since the log file name contains the current time in seconds, dumping
the logs more than once per second causes EEXIST errors to be emitted.
Add a static variable to libcfs_debug_dumplog_internal that records
the time of the last Lustre log dump. If the current time in seconds
is equal to the last time, do not dump logs again.
Note that this is not thread-safe. However, in the rare case that two
threads try to access last_dump_time simultaneously, the worst thing
that could happen is that one of the threads will get an EEXIST error
when trying to write the log file. This is no worse than the current
situation, and it is not likely to happen.
Signed-off-by: Ryan Haasken <haasken@cray.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4129
Reviewed-on: http://review.whamcloud.com/8964 Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Bob Glossman <bob.glossman@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Tue, 16 Aug 2016 20:18:30 +0000 (16:18 -0400)]
staging: lustre: add ability to migrate inodes.
Add client support to migrate the individual inodes
from one MDT to another MDT, and this functionality
will only migrate inode layout on MDT but not touch
data object on OST.
The directory will be migrated from top to the bottom,
i.e. migrating parent first, then migrating the child.
Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2430
Reviewed-on: http://review.whamcloud.com/6662 Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fan Yong [Tue, 16 Aug 2016 20:18:29 +0000 (16:18 -0400)]
staging: lustre: obdclass: bug fixes for lu_device_type handling
There was no protection when inc/dec lu_device_type::ldt_device_nr,
which may caused the ldt_device_nr to be wrong and trigger assert.
This patch redefine lu_device_type::ldt_device_nr as atomic type.
There was no protection when add/del lu_device_type::ldt_linkage
into/from the global lu_device_types list, which may caused bad
address accessing. This patch uses the existing obd_types_lock
to protect related operations.
We do NOT need lu_types_stop() any longer. Such function scans
the global lu_device_types list, and for each type item on it
which has zerod lu_device_type::ldt_device_nr, call its stop()
method. In fact, the lu_device_type::ldt_device_nr only will be
zero when the last lu_device_fini() is called, and at that time,
inside the lu_device_fini(), its stop() method will be called.
So it is unnecessary to call the stop() again via lu_types_stop().
Signed-off-by: Fan Yong <fan.yong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4604
Reviewed-on: http://review.whamcloud.com/8694 Reviewed-by: Jian Yu <jian.yu@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jian Yu [Tue, 16 Aug 2016 20:18:28 +0000 (16:18 -0400)]
staging: lustre: obdclass: fix lmd_parse() to handle comma-separated NIDs
This patch handles the upgrade situation that old mountdata already
contains comma-separated NIDs. The correct way to fix the original
issue is to parse comma-separated NIDs in lmd_parse().
wang di [Tue, 16 Aug 2016 20:18:27 +0000 (16:18 -0400)]
staging: lustre: delete striped directory
Add delete striped directory, it includes
1. enable sync log between MDTs, so slave objects will
be delete by unlink log, which is similar as deleting ost
object.
2. retrieve layout information of striped directory on MDT,
then lock all of the slave objects before unlink.
Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3531
Reviewed-on: http://review.whamcloud.com/7445 Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3531
Reviewed-on: http://review.whamcloud.com/7228 Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Tue, 16 Aug 2016 20:18:25 +0000 (16:18 -0400)]
staging: lustre: create striped directory
1. client send create request to the master MDT, which
will allocate FIDs and create slaves. for all of slaves.
2. Client needs to revalidate slaves during intent getattr
and open request.
3. lmv_stripe_md will include attributes(size, nlink etc)
from all of stripe, which will be protected by UPDATE lock.
client needs to merge these attributes when update inode.
4. send create request to the MDT where the file is located,
which can help creating master stripe of striped directory.
Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3529
Reviewed-on: http://review.whamcloud.com/7196 Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Tue, 16 Aug 2016 20:18:22 +0000 (16:18 -0400)]
staging: lustre: lmv: change handling of lmv striping information
The lmv_[un]pack_md function are used to calculate the
size of the data used to represent the LMV striping data.
The original code was straight forward in its calculate
with lmv_get_easize since only one type of data format
could exist. We want to be able to support different
version of this data in the future so this patch moves
to generating the size of the data using the stripe count
and which LMV_MAGIC_* version.
Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/7043
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3531 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Tue, 16 Aug 2016 20:18:19 +0000 (16:18 -0400)]
staging: lustre: mdc: don't take rpc lock for readdir case
If the operation is IT_READDIR don't need to handle the
mdc RPC lock.
Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/10761
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4906 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The networking AIM does not use the *_irqsave and *_irqrestore flavored
spinlock functions. The rx_completion callback, however, can be called
from an interrupt context.
Christian Gromm [Thu, 18 Aug 2016 14:58:46 +0000 (16:58 +0200)]
staging: most: dim2-hdm: initialize DBR memory of synchronous channels
In the time after a synchronous DIM2 channel is enabled and before the
first buffer travels this channel, the DIM2 macro is babbling random
random data to the network.
This patch initializes the internal DBR memory of the DIM2 that is used
to transfer the synchronous data.
Tim Sell [Sat, 11 Jun 2016 01:48:26 +0000 (21:48 -0400)]
staging: unisys: visorinput: make lock_visor_dev a mutex
Since lock_visor_dev is a binary semaphore it makes more sense to
use a mutex lock.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ensure we properly lock between visorinput_channel_interrupt(),
visorinput_open(), and devdata_create(). We now guarantee that:
* interrupts will be disabled and remain disabled during device creation,
by setting 'paused = true' across device creation
* we canNOT get into visorinput_open() until the device structure is
totally initialized, by delaying the input_register_device() until the
end of device initialization
We also now ensure that lock_visor_dev is held across updates of devdata
state, to ensure state consistency.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Sat, 11 Jun 2016 01:48:24 +0000 (21:48 -0400)]
staging: unisys: Move vbushelper.h to visorbus directory
Only visorbus needs this header file so move it to visorbus
directory.
Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch ONLY touches comment lines, i.e., NO executable code is
affected.
Comments were fixed in visorbus_private.h:
* Minor typos were corrected.
* Useless comments were removed.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Sat, 11 Jun 2016 01:48:22 +0000 (21:48 -0400)]
staging: unisys: visorbus: Rename function to follow existing convention
Renames visorchipset_device_pause_response to device_pause_response,
thereby following the convention that other responder functions follow.
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Sat, 11 Jun 2016 01:48:21 +0000 (21:48 -0400)]
staging: unisys: visorbus: Remove notifier-related code from visorbus
When this functionality was first implemented, visorchipset and visorbus
were separate drivers, which necessitated a registration mechanism for
them to communicate. More-recently, visorchipset and visorbus were
combined into a single driver, and now exist as separate source files
within the same driver, known as 'visorbus'. This eliminated the need
for a registration mechanism, but it has remained nevertheless until now.
For the sake of simplification, this registration mechanism is now being
removed.
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <timothy.sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Sat, 11 Jun 2016 01:48:19 +0000 (21:48 -0400)]
staging: unisys: visorbus: Move visorbus-unique functions to private header
Moves function prototypes that are unique to visorbus from
include/visorbus.h to visorbus/visorbus_private.h.
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Sat, 11 Jun 2016 01:48:18 +0000 (21:48 -0400)]
staging: unisys: visorbus: Rectify commenting in visorchipset.c
Adds kerneldoc formatting to appropriate functions. Other multi-line
comments now use proper formatting.
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch ONLY touches comment lines, i.e., NO executable code is
affected.
Comments were fixed in visorchannel.c:
* All functions worthy of documenting now use standard kerneldoc
formatting.
* Multi-line comments were tweaked so as to use appropriate conventions.
* Minor typos were corrected.
* Useless comments were removed.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Signed-off-by: David Binder <david.binder@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Sat, 11 Jun 2016 01:48:16 +0000 (21:48 -0400)]
staging: unisys: visorbus: fix commenting in visorbus_main.c
This patch ONLY touches comment lines, i.e., NO executable code is
affected.
* All functions worthy of documenting now use standard kerneldoc
formatting.
* Improper uses of kerneldoc formatting were converted to standard
multi-line comments.
* Multi-line comments were tweaked so as to use appropriate conventions.
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Sat, 11 Jun 2016 01:48:15 +0000 (21:48 -0400)]
staging: unisys: visorbus: fix commenting in vbusdevinfo.h
This patch ONLY touches comment lines, i.e., NO executable code is
affected.
* All functions worthy of documenting now use standard kerneldoc
formatting.
* Multi-line comments were tweaked so as to use appropriate conventions.
* Minor typos were corrected.
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tim Sell [Sat, 11 Jun 2016 01:48:14 +0000 (21:48 -0400)]
staging: unisys: visorbus: remove unused parameter from function
The off parameter to visorchannel_create_guts() was never used, so it was
removed.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove visorbus_clear_channel, visorchannel_signalqueue_slots_avail,
visorchannel_signalqueue_max_slots, visorchannel_clear, and
visorchannel_debug which are no longer called by any driver.
Signed-off-by: Bryan Thompson <bryan.thompson@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver that is now visorbus started out as multiple separate drivers,
and when they were merged the EXPORT_SYMBOL statements that were required
for separate drivers were left in the code. This patch removes those now
unnecessary exports.
Signed-off-by: Bryan Thompson <bryan.thompson@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These files were made no-longer-necessary by recent commits.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tim Sell [Sat, 11 Jun 2016 01:48:08 +0000 (21:48 -0400)]
staging: unisys: visorbus: use kernel timer instead of workqueue
A kernel timer is now used as the vehicle to periodically call the
channel_interrupt function of registered visor drivers, instead of a
workqueue.
This simplifies a lot of things by making periodic_work.c and
periodic_work.h no longer necessary. This change also means that the
channel_interrupt() callbacks registered by visor drivers (via
visorbus_register_visor_driver()) will now be called in atomic context
(i.e., canNOT sleep) rather than kernel thread context (CAN sleep).
Fortunately this did NOT necessitate any change to the existing
channel_interrupt() callbacks, because none of them ever perform any
operations that would be invalid in atomic context.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Locking in the _interrupt() function is NOT necessary so long as we ensure
that interrupts have been stopped whenever we need to pause or resume the
device, which we now do.
While a device is paused, we ensure that interrupts stay disabled, i.e.
that the _interrupt() function will NOT be called, yet remember the desired
state in devdata->interrupts_enabled if open() or close() are called are
called while the device is paused. Then when the device is resumed, we
restore the actual state of interrupts (i.e., whether _interrupt() is going
to be called or not) to the desired state in devdata->interrupts_enabled.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
periodic_test_workqueue was an unused relic from the past, and was removed.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Sat, 11 Jun 2016 01:48:05 +0000 (21:48 -0400)]
staging: unisys: include: Remove thread-related enum members
Code relating to ktheads was previously removed from s-Par driver code.
This patch cleans up lingering remnants of kthreads by removing thread-
related enum types.
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Sat, 11 Jun 2016 01:48:03 +0000 (21:48 -0400)]
staging: unisys: visorbus: modify format string to match argument
Modifies the format string of snprintf to expect an unsigned int
instead of a signed one, per the supplied argument.
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Sat, 11 Jun 2016 01:48:02 +0000 (21:48 -0400)]
staging: unisys: visorbus: remove unused struct
Removes unused struct definition, channel_size_info, in response to
findings by SonarQube.
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Removes unused module parameters from visorbus_main.c, in response to
findings by SonarQube.
Signed-off-by: David Binder <david.binder@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch modifies the caller of parahotplug_request_complete()
to check the return value and return appropriate result.
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Erik Arfvidson [Sat, 11 Jun 2016 01:47:59 +0000 (21:47 -0400)]
staging: unisys: visorbus: remove return values for write_vbus functions
This patch removes the return values from the write_vbus_* channel
functions. Nobody was checking the return values and the value stored
into the vbus info is not critical to the functioning of the device.
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: Tim Sell <Timothy.Sell@unisys.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Christian Gromm [Mon, 27 Jun 2016 13:00:32 +0000 (15:00 +0200)]
staging: most: core: remove debug print
This patch removes the debug print in case an HDM ran out of rx buffers.
This is not needed since the status is reflected in the sysfs
channel_starving flag. Additionally, it prevents the system form slowing
down.
Christian Gromm [Mon, 13 Jun 2016 14:24:25 +0000 (16:24 +0200)]
staging: most: dim2-hdm: fix possible kernel freeze when reusing a dim2 channel
If a DIM2 channel is being closed while it is busy, the channels's status
flag could possibly stay active for this very channel. This causes the
kernel to freeze by the time the channel is opened again.
Christian Gromm [Mon, 13 Jun 2016 14:24:23 +0000 (16:24 +0200)]
staging: most: dim2-hdm: fix race condition when closing a channel
This patch fixes race between the function poison_channel that clears
the state is_initialized and the tasklet function dim2_tasklet_fn that
checks the state is_initialized.
The function aim_register_videodev() uses the variables 'ret' and
'retval' to represent the same value.
This patch removes 'retval' and replaces it with 'ret'. Further, it
replaces the constant return value '-ENODEV' with the result returned by
function video_register_device() in the event something went wrong.
Colin Ian King [Mon, 9 May 2016 22:22:14 +0000 (23:22 +0100)]
staging: speakup: ensure we do not overrun synths array
synth_add allows one to add MAXSYNTHS synths to the synths array;
however it always NULLifies the next synth in the array which
means that on the MAXSYNTHS synth we get an out-of-bounds write of
the NULL to the synths array. Make the synths array MAXSYNTHS + 1
elements in size to allow for the final NULL sentinal to avoid the
out-of-bounds write.
Issue found wit CoverityScan, CID#744671
Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
the "brd" was already checked for NULL before calling dgnc_do_remap().
the dgnc_do_remap() function was called only
from the dgnc_found_board() and the DGNC_BOARD_MAGIC value
was assigned to "brd->magic" in dgcn_found_board(). So it doesn't
need to check about magic value.
staging: dgnc: remove redundant NULL check for brd
the "brd" value cannot be NULL in dgnc_finalize_board_init().
Because "brd" as a parameter of this function was already
checked for NULL.
the dgnc_finalize_board_init() as a static function was called
only from dgnc_found_board() function and brd->magic value
was assigned once in dgnc_found_board(). So it doesn't need to
check for DGNC_BOARD_MAGIC value.
staging: dgnc: remove useless error value assignment
The "result" variable in dgnc_get_mstat() was initialized with
"-EIO". But if the "ch" is not null, "result" will be set to zero
and if the "ch" is null, dgnc_get_mstat() will return "-ENXIO" as
an error. So "-EIO" error value was useless in dgnc_get_mstat().
The dgnc_block_til_ready() is only used in dgnc_tty_open().
The unit data(struct un_t) was stored into tty->driver_data in dgnc_tty_open().
And also tty and un were tested about NULL so these variables doesn't
need to check for NULL in dgnc_block_til_ready().
wang di [Fri, 22 Jul 2016 02:44:11 +0000 (22:44 -0400)]
staging: lustre: llite: do post work for statahead in readdir case
Increase the post-work for the statahead thread in the readdir
case since it can become very busy.
Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/10761
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4906 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Fri, 22 Jul 2016 02:44:10 +0000 (22:44 -0400)]
staging: lustre: llite: pass in __u64 pos for ll_dir_read
Some cases we want to preserve the ctx->pos value or use
a different value altogther. So allow the passing in of
a position offset to ll_dir_read.
Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/10761
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4906 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Fri, 22 Jul 2016 02:44:06 +0000 (22:44 -0400)]
staging: lustre: llite: change done flag in ll_dir_read to bool
Change the done flag from integer to bool.
Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/10761
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4906 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Fri, 22 Jul 2016 02:44:04 +0000 (22:44 -0400)]
staging: lustre: llite: set next only when needed in ll_dir_read
The variable next needs only to be set when done is false.
Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/10761
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4906 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Fri, 22 Jul 2016 02:44:03 +0000 (22:44 -0400)]
staging: lustre: llite: reduce indent in ll_dir_read
Instead of making a large chunk of code conditional
based on if a page is valid we reverse the page
validity test and exit the loop if the page is invalid
instead. This allows a section of code to reduce its
indentation one level.
Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/10761
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4906 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Fri, 22 Jul 2016 02:44:02 +0000 (22:44 -0400)]
staging: lustre: llite: remove debug message in ll_dir_read
Remove debug message and struct ll_inode_info.
Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/10761
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4906 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
projects / linux-beck.git / log