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This makes cp_new_stat() a bit more readable, and avoids having to
memset() the whole structure just to fill in a couple of padding fields.
This is another result of me looking at code generation of functions
that show up high on certain kernel profiles, and just going "Oh, let's
just clean that up".
Architectures that don't supply the #define to fill just the padding
fields will still fall back to memset().
* stat-cleanups:
vfs: don't force a big memset of stat data just to clear padding fields
vfs: de-crapify "cp_new_stat()" function
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This series sanitizes the interface to unmap_vma(). The crazy interface
annoyed me no end when I was looking at unmap_single_vma(), which we can
spend quite a lot of time in (especially with loads that have a lot of
small fork/exec's: shell scripts etc).
Moving the nr_accounted calculations to where they belong at least
clarifies things a little. I hope to come back to look at the
performance of this later, but if/when I get back to it I at least don't
have to see the crazy interfaces any more.
* vm-cleanups:
vm: remove 'nr_accounted' calculations from the unmap_vmas() interfaces
vm: simplify unmap_vmas() calling convention
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If kzalloc() returns a NULL here, we pass a NULL to
xencons_disconnect_backend() which will cause an Oops.
Also I removed the __GFP_ZERO while I was at it since kzalloc() implies
__GFP_ZERO.
CC: stable@kernel.org
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Currently, the memory target in the Xen selfballooning driver is mainly
driven by the value of "Committed_AS". However, there are cases in
which it is desirable to assign additional memory to be available for
the kernel, e.g. for local caches (which are not covered by cleancache),
e.g. dcache and inode caches.
This adds an additional tunable in the selfballooning driver (accessible
via sysfs) which allows the user to specify an additional constant
amount of memory to be reserved by the selfballoning driver for the
local domain.
Signed-off-by: Jana Saout <jana@saout.de>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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There are two functions in this asm-generic file. Looking at
other arch which do not use the generic version, these two fcns
are within an #ifdef __KERNEL__ block, so make the generic one
consistent with those.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Conflicts:
arch/arm/boot/compressed/head.S
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Conflicts:
arch/arm/kernel/ptrace.c
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and 'versatile' into for-linus
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Add an ioctl to the /dev/xen/xenbus_backend device allowing the xenbus
backend to be started after the kernel has booted. This allows xenstore
to run in a different domain from the dom0.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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I have been looking over those patches for quite a
while. Adding myself officially as the maintainer
as agreed with Greg KH.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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CONFIG_HID_WACOM must depend on CONFIG_LEDS_CLASS, otherwise
CONFIG_NEW_LEDS may be disabled.
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The git commit 1ff2b0c303698e486f1e0886b4d9876200ef8ca5
"xen: implement IRQ_WORK_VECTOR handler" added the functionality
to have a per-cpu "irqworkX" for the IPI APIC functionality.
However it missed the unbind when a vCPU is unplugged resulting
in an orphaned per-cpu interrupt line for unplugged vCPU:
30: 216 0 xen-dyn-event hvc_console
31: 810 4 xen-dyn-event eth0
32: 29 0 xen-dyn-event blkif
- 36: 0 0 xen-percpu-ipi irqwork2
- 37: 287 0 xen-dyn-event xenbus
+ 36: 287 0 xen-dyn-event xenbus
NMI: 0 0 Non-maskable interrupts
LOC: 0 0 Local timer interrupts
SPU: 0 0 Spurious interrupts
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Extend Waltop barrel button fix to all models: ignore reported pressure when a
barrel button is pressed, because it is rarely correct. Report zero pressure in
such cases instead.
Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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isci update for 3.5
1/ Rework remote-node-context (RNC) handling for proper management of
the silicon state machine in error handling and hot-plug conditions.
Further details below, suffice to say if the RNC is mismanaged the
silicon state machines may lock up.
2/ Refactor the initialization code to be reused for suspend/resume support
3/ Miscellaneous bug fixes to address discovery issues and hardware
compatibility.
RNC rework details from Jeff Skirvin:
In the controller, devices as they appear on a SAS domain (or
direct-attached SATA devices) are represented by memory structures known
as "Remote Node Contexts" (RNCs). These structures are transferred from
main memory to the controller using a set of register commands; these
commands include setting up the context ("posting"), removing the
context ("invalidating"), and commands to control the scheduling of
commands and connections to that remote device ("suspensions" and
"resumptions"). There is a similar path to control RNC scheduling from
the protocol engine, which interprets the results of command and data
transmission and reception.
In general, the controller chooses among non-suspended RNCs to find one
that has work requiring scheduling the transmission of command and data
frames to a target. Likewise, when a target tries to return data back
to the initiator, the state of the RNC is used by the controller to
determine how to treat the incoming request. As an example, if the RNC
is in the state "TX/RX Suspended", incoming SSP connection requests from
the target will be rejected by the controller hardware. When an RNC is
"TX Suspended", it will not be selected by the controller hardware to
start outgoing command or data operations (with certain priority-based
exceptions).
As mentioned above, there are two sources for management of the RNC
states: commands from driver software, and the result of transmission
and reception conditions of commands and data signaled by the controller
hardware. As an example of the latter, if an outgoing SSP command ends
with a OPEN_REJECT(BAD_DESTINATION) status, the RNC state will
transition to the "TX Suspended" state, and this is signaled by the
controller hardware in the status to the completion of the pending
command as well as signaled in a controller hardware event. Examples of
the former are included in the patch changelogs.
Driver software is required to suspend the RNC in a "TX/RX Suspended"
condition before any outstanding commands can be terminated. Failure to
guarantee this can lead to a complete hardware hang condition. Earlier
versions of the driver software did not guarantee that an RNC was
correctly managed before I/O termination, and so operated in an unsafe
way.
Further, the driver performed unnecessary contortions to preserve the
remote device command state and so was more complicated than it needed
to be. A simplifying driver assumption is that once an I/O has entered
the error handler path without having completed in the target, the
requirement on the driver is that all use of the sas_task must end.
Beyond that, recovery of operation is dependent on libsas and other
components to reset, rediscover and reconfigure the device before normal
operation can restart. In the driver, this simplifying assumption meant
that the RNC management could be reduced to entry into the suspended
state, terminating the targeted I/O request, and resuming the RNC as
needed for device-specific management such as an SSP Abort Task or LUN
Reset Management request.
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Set some substream struct members to make the proc interface code work
again.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-by: Felix Homann <linuxaudio@showlabor.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The handling for some PCM states is missing for snd_pcm_drain().
At least, XRUN streams should be simply dropped to SETUP, and a few
initial invalid states should be rejected.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The module_platform_driver() conversion ended up tripping over the driver
name, leading to confusion in the macro with regards to 'driver' being
redefined. rename it to something slightly more suitable to avoid
namespace collisions.
sound/sh/sh_dac_audio.c:444:122: error: conflicting types for 'driver_init'
include/linux/device.h:773:6: note: previous declaration of 'driver_init' was here
make[3]: *** [sound/sh/sh_dac_audio.o] Error 1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Both of these boards are still using the PIO API sans PCI, and will need
to be carefully converted. As conversion is out of scope for this merge
window, simply make sure NO_IOPORT doesn't get accidentally set for
these, joining a long list of other crap platforms.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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HARDIRQS_SW_RESEND and GENERIC_IRQ_PROBE are already defined as config
switches in the core Kconfig file. Select them instead of defining
them in ARM.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Link: http://lkml.kernel.org/r/20120518163104.630579708@glx-um.de
Cc: x86@kernel.org
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Link: http://lkml.kernel.org/r/20120518163107.383567224@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Acked-by: Richard Weinberger <richard@nod.at>
Link: http://lkml.kernel.org/r/20120518163107.251597655@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Link: http://lkml.kernel.org/r/20120518163107.122560037@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: David S. Miller <davem@davemloft.net>
Link: http://lkml.kernel.org/r/20120518163106.987564297@glx-um.de
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/20120518163106.857566635@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Link: http://lkml.kernel.org/r/20120518163106.727602709@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20120518163106.595607369@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Acked-by: Jonas Bonn <jonas@southpole.se>
Link: http://lkml.kernel.org/r/20120518163106.333611712@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Link: http://lkml.kernel.org/r/20120518163106.464567389@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: David Howells <dhowells@redhat.com>
Link: http://lkml.kernel.org/r/20120518163106.201635926@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Link: http://lkml.kernel.org/r/20120518163106.073559820@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Michal Simek <monstr@monstr.eu>
Link: http://lkml.kernel.org/r/20120518163105.939597527@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Link: http://lkml.kernel.org/r/20120518163105.808606368@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Link: http://lkml.kernel.org/r/20120518163105.678581749@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/20120518163105.547603093@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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config GENERIC_TIME not longer used.
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Richard Kuo <rkuo@codeaurora.org>
Link: http://lkml.kernel.org/r/20120518163105.416570309@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Link: http://lkml.kernel.org/r/20120518163105.286556794@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Acked-by: Mark Salter <msalter@redhat.com>
Link: http://lkml.kernel.org/r/20120518163105.156595383@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Use seperate selector for clockevents.
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Link: http://lkml.kernel.org/r/20120518163105.026597932@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Link: http://lkml.kernel.org/r/20120518163104.889514832@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Russell King <linux@arm.linux.org.uk>
Link: http://lkml.kernel.org/r/20120518163104.760560327@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Acked-by: Matt Turner <mattst88@gmail.com>
Link: http://lkml.kernel.org/r/20120518163107.510619939@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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We really don't want all the arch code defining stuff
over and over.
[ anna-maria: Added missing GENERIC_CMOS_UPDATE switch ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/1337529587.3208.2.camel@dionysos
Acked-by: Sam Ravnborg <sam@ravnborg.org>
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Everything is using sparseirq these days, so we have no need to
arbitrarily size nr_irqs ahead of time. The legacy IRQ pre-allocation
likewise has no meaning for us, so that's killed off too. We now depend
on nr_irqs expansion by the generic hardirq layer instead.
It's also worth noting that the majority of boards had completely bogus
values for their nr_irqs relative to their CPU and configurations, so
this ends up correcting behaviour for quite a few platforms.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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perf/core
Conflicts:
tools/perf/Makefile
This tree from Frederic unifies the perf and trace-cmd trace event format
parsing code into a single library.
Powertop and other tools will also be able to make use of it.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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This patch modifies ubi_wl_flush to force the erasure of
particular volume id / logical eraseblock number pairs. Previous functionality
is preserved when passing UBI_ALL for both values. The locations where ubi_wl_flush
were called are appropriately changed: ubi_leb_erase only flushes for the
erased LEB, and ubi_create_volume forces only flushing for its volume id.
External code can call this new feature via the new function ubi_flush() added
to kapi.c, which simply passes through to ubi_wl_flush().
This was tested by disabling the call to do_work in ubi thread, which results
in the work queue remaining unless explicitly called to remove. UBIFS was
changed to call ubifs_leb_change 50 times for four different LEBs. Then the
new function was called to clear the queue: passing wrong volume ids / lnum,
correct ones, and finally UBI_ALL for both to ensure it was finally all
cleard. The work queue was dumped each time and the selective removal
of the particular LEB numbers was observed. Extra checks were enabled and
ubifs's integck was also run. Finally, the drive was repeatedly filled and
emptied to ensure that the queue was cleared normally.
Artem: amended the patch.
Signed-off-by: Joel Reardon <reardonj@inf.ethz.ch>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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