tmem uses hash buckets each with their own rbtree and lock to
quickly lookup tmem objects. tmem has TMEM_HASH_BUCKETS (256)
buckets per pool. However, because of the way the tmem_oid is
generated for frontswap pages, only 16 unique tmem_oids are being
generated, resulting in only 16 of the 256 buckets being used.
This cause high lock contention for the per bucket locks.
This patch changes SWIZ_BITS to include more bits of the offset.
The result is that all 256 hash buckets are potentially used resulting in a
95% drop in hash bucket lock contention.
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
With the mainline patch being applied to the wireless-next repository
by John Linville this driver is no longer needed under the staging
directory. This patch ends its life under the staging tree.
Cc: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch cleans up several code style issues found
in InterfaceMisc.c reported by checkpatch.pl.
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes an assignment from three if
conditions. In all three cases, the line of code was
attempting to allocate memory, and check
if the memory was allocated in the if statement.
This issue was reported by checkpatch.pl.
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch cleans up several code style issues found
in InterfaceInit.c reported by checkpatch.pl.
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes an error where an assignment "="
was being used in an if statement to determine if
Firmware was downloaded. This patch removes that
assignment, and places it above the if statement.
The if statement then evaluates the status to
verify if "0" successful, or != 0 failure.
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There is a case where an assignment was being done
in an if condition. This patch removes the assignment
from the if condition and places the assignment above
the if statement; thereby improving the readability of
the code.
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch replaces the obsolete variable, __FUNCTION__, that
holds the name of the current function with variable, __func__.
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch cleans up several hundred code style issues found
in Misc.c reported by checkpatch.pl.
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Added some more tasks to the TODO list, as highlighted by Francois
Romieu <romieu@fr.zoreil.com>.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes the following issues:
et131x_initpci.c +488 et131x_adjust_link(45) error: we previously assumed 'phydev' could be null.
et131x_initpci.c +504 et131x_adjust_link(61) warn: variable dereferenced before check 'phydev'
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes the following warnings:
et1310_mac.c:375:44: warning: incorrect type in initializer (different address spaces)
et1310_mac.c:382:28: warning: incorrect type in argument 2 (different address spaces)
et1310_mac.c:384:31: warning: incorrect type in argument 2 (different address spaces)
et131x_initpci.c:555:5: warning: symbol 'et131x_mii_probe' was not declared. Should it be static?
et131x_netdev.c:267:5: warning: symbol 'et131x_ioctl' was not declared. Should it be static?
et131x_netdev.c:285:5: warning: symbol 'et131x_set_packet_filter' was not declared. Should it be static?
et131x_netdev.c:347:6: warning: symbol 'et131x_multicast' was not declared. Should it be static?
et131x_netdev.c:420:5: warning: symbol 'et131x_tx' was not declared. Should it be static?
et131x_netdev.c:453:6: warning: symbol 'et131x_tx_timeout' was not declared. Should it be static?
et131x_netdev.c:511:5: warning: symbol 'et131x_change_mtu' was not declared. Should it be static?
et131x_netdev.c:564:5: warning: symbol 'et131x_set_mac_addr' was not declared. Should it be static?
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Removed defines in et131x_version.h and replaced them by actual
strings where convinient, or moved them to et131x.h
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Move the pci driver suspend/resume calls up to the driver.pm ops
structure, as they are not pci device specific.
Thanks to Francois Romieu <romieu@fr.zoreil.com> for pointing this out.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Removing an error path from et131x suspend/resume functions.
Also added a call to phy_stop() to complement the phy_start() call
during device start/stop routine.
Thanks to Francois Romieu <romieu@fr.zoreil.com> for pointing this out.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
On 3 October 2011 18:51, Uwe Ranft <uwe.ranft@telozo.com> wrote:
> Hello,
> olaf is not more longer owner of this e-mailadress. he has left our
> company.
> Please remove olaf fron the mailing list!
> Best Regards
> Uwe
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Array XGrpKey has only 2 elements and uses (keyid - 1) as the index, which
allows the possibility of memory corruption from an out-of-bounds index.
This problem was reported by a new version of smatch.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In the case that a cpu is taken offline before zcache_do_preload() is
ever called on the cpu, the per-cpu zcache_preloads structure will
be uninitialized. In the CPU_DEAD case for zcache_cpu_notifier(),
kp->obj is not checked before calling kmem_cache_free() on it.
If it is NULL, a crash results.
This patch ensures that both kp->obj and kp->page are not NULL before
calling the respective free functions. In practice, just checking
one or the other should be sufficient since they are assigned together
in zcache_do_preload(), but I check both for safety.
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The '!' is dead code that was left over from a previous version.
It causes a compiler warning:
drivers/staging/dt3155v4l/dt3155v4l.c:335:3: warning: value computed
is not used
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Commit c6fc806247 ("staging:iio: ABI rework - add in_ or out_ prefix to
channnels") added the AD5868_CHANNEL macro to simplify channel initialization.
Unfortunately the macro hardcodes the channel's address to AD5686_ADDR_DAC0. As
a result writing to any of the channels will change the value of the first
channel.
This patch fixes the issue by calculating the channel address based on the
channel number.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We had a random missmatch of these two. Lets pick the most common
and get rid of the other.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
For adxxxx parts
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We had a random missmatch of these two. Lets pick the most common
and get rid of the other.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Again, there is a mix of the two names for the struct iio_dev.
Lets pick one and run with it.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We had a random missmatch of these two. Lets pick the most common
and get rid of the other. This patch covers the core. Others
will clean up the drivers.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The error_ret label should have been before the mutex_unlock(). It's
a typo.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes a compile warning:
drivers/staging/iio/light/tsl2563.c:696:2:
warning: initialization from incompatible pointer type [enabled by default]
drivers/staging/iio/light/tsl2563.c:696:2:
warning: (near initialization for ‘tsl2563_info.write_event_value’) [enabled by default]
The tsl2563_write_thresh() function returns zero on success and error
codes on failure, so nothing is lost by making the return type int
instead of ssize_t.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We need to unlock here before returning.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is only used/needed by the vmbus core code, so move it out of the
hyperv.h file and into the .c file that uses it.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This function is only used in the file it is declared in
(channel_mgmt.c) so make it static and remove it from the hyperv.h file.
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This file was created by mushing different .h files together and it
shows. This change removes some unneeded forward declarations.
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I have no idea what these were ever for, but they aren't used, so delete
them.
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
They aren't used anywhere anymore now that the debugging macros are
gone, so remove it from hyperv.h as well.
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
As there is no user of this variable, it's time to delete it. For
dynamic debugging of the hyperv code, use the standard dynamic debug
kernel interface.
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
These aren't used by anyone anymore, so remove them before someone tries
to use them again.
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It's a global symbol, so properly prefix it and use the proper EXPORT
value as well.
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
No one outside of the hyperv core needs to include the asm/hyperv.h
file, so don't put it in the "global" include/linux/hyperv.h file.
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
After many years wandering the desert, it is finally time for the
Microsoft HyperV code to move out of the staging directory. Or at least
the core hyperv bus code, and the utility driver, the rest still have
some review to get through by the various subsystem maintainers.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
net_dev is being de-referenced without proper checking; fix it.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some commands sent by smartd will offline the device.
With this change applied, smartd sill not monitor the device anymore.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Invoke cn_netlink_send() in a work context as opposed being called
in the context of channel callback. On entry into the channel callback
code the channel inbound spin lock is held and deferring to a work
context avoids having to invoke cn_netlink_send() while holding
the inbound lock. As part of this adjustment, also increase the
timeout value for waiting for the user level component of KVP.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The host gurantees that there can be only one kvp transaction active
against the guest. So, the transaction active state is needed only to
protect against spurious user level calls. The current code had a race
condition where the guest could prematurely return because the previous
transaction state was not cleared - this state was being cleared after
sending the response to the host and there was a window where the host
could notify the guest of a new transaction before the transaction active
state was properly set.
Also deal with the case when the user mode component
does not respond in a timely fashion correctly.
I would like to thank Long Li <longli@microsoft.com>
for identifying the problem.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Diagnosed-by: Long Li <longli@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Basically make use of the gpio array functions.
Technically the free doesn't need as much info
as given here, but this keeps it clean and easy
to follow.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This should never have been exposed to userspace
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Just convert the raw reads in this patch.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is needed to ensure the required name attribute is
created. Using an id table is the route most consistent
with other drivers.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There are far too many possible part numbers that are
not covered in here to have such a generic name.
So move to naming after one of the supported parts.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Seth Jennings
Arend van Spriel
Kevin McKinney
Mark Einon
Larry Finger
Dan Carpenter
Thomas Petazzoni
Lars-Peter Clausen
Jonathan Cameron
Greg Kroah-Hartman
K. Y. Srinivasan
Olaf Hering