On Tue, 2014-05-06 at 08:57 -0700, j...@joshtriplett.org wrote:
> A NAK isn't going to cut it, here; tiny Linux systems are going to
> exist, and they shouldn't have to maintain a long-term out-of-tree fork
> or use crazy things like LWIP.
What's wrong with user space implementations of networkin
On Tue, May 06, 2014 at 11:59:41AM -0400, David Miller wrote:
> From: j...@joshtriplett.org
> Date: Tue, 6 May 2014 08:57:03 -0700
>
> > On Mon, May 05, 2014 at 11:23:27PM -0400, David Miller wrote:
> >> From: Andi Kleen
> >> Date: Tue, 6 May 2014 05:21:14 +0200
> >>
> >> > What parts would you
Uwe:
With commit a264b981f2c76e281ef27e7232774bf6c54ec865 we're having eth0
come up, then brought right back down with an MDIO rx timeout moments
after. Adding back in the removed code keeps the interface alive and
it's working afterward without trouble. I've tested the re-inserted
code in 3.12,
On Tue, May 06, 2014 at 09:39:19AM -0700, Eric Dumazet wrote:
> On Tue, 2014-05-06 at 08:57 -0700, j...@joshtriplett.org wrote:
>
> > A NAK isn't going to cut it, here; tiny Linux systems are going to
> > exist, and they shouldn't have to maintain a long-term out-of-tree fork
> > or use crazy thin
On 05/01/2014 04:44 AM, Mel Gorman wrote:
> A node/zone index is used to check if pages are compatible for merging
> but this happens unconditionally even if the buddy page is not free. Defer
> the calculation as long as possible. Ideally we would check the zone boundary
> but nodes can overlap.
>
On Tue, May 06, 2014 at 06:12:56PM +0200, Michal Hocko wrote:
> I am adding Rik to CC (sorry to put you in the middle of a thread -
> we have started here: https://lkml.org/lkml/2014/4/28/237). You were
> stressing out risks of using lowlimit as a hard guarantee at LSF. Could
> you repeat your conc
On Tue, May 06, 2014 at 07:53:19AM -0700, Linus Torvalds wrote:
> On Tue, May 6, 2014 at 3:17 AM, Miklos Szeredi wrote:
> >
> > Patches look okay to me.
> >
> > Reviewed-by: Miklos Szeredi
> >
> >> dentry_kill(): don't try to remove from shrink list
> >
> > Backport of this to 3.12 was test
* Sourav Poddar [140506 04:08]:
> These add device tree entry for qspi controller driver on dra7-evm.
Thanks applying into omap-for-v3.16/dt.
Tony
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On Mon, 5 May 2014, Vince Weaver wrote:
> On Mon, 5 May 2014, Vince Weaver wrote:
>
> > Meanwhile the haswell and AMD machines have been fuzzing away without
> > issue, I don't know why the core2 machine is always the trouble maker.
>
> The haswell has been fuzzing 12 hours with only a NMI daze
On Tue, May 06, 2014 at 04:32:27PM +0300, Dmitry Kasatkin wrote:
> Hi,
>
> I have discovered one IMA related issue.
>
> IMA file hash is re-calculate if needed on file close.
>
> It works with ftruncate(fd, length) syscall, because it operates on
> "opened" file.
> Recalculation is happening on
Il 06/05/2014 08:19, Bandan Das ha scritto:
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=54521
The vmxon region is unused by nvmx, but adding these checks
are probably harmless and may detect buggy L1 hypervisors in
the future!
Applied to kvm/queue, unit test patches are welcome (hin
On 05/05/2014 09:41 PM, Oleg Nesterov wrote:
> On 05/05, Denys Vlasenko wrote:
>>
>> + * Opcodes we'll probably never support:
>> + * 6c-6f - ins,outs. SEGVs if used in userspace
>> + * e4-e7 - in,out imm. SEGVs if used in userspace
>> + * ec-ef - in,out acc. SEGVs if used in userspace
>
> Well. I
Hi Jean,
On Tue, May 06, 2014 at 04:55:33PM +0100, Jean Pihet wrote:
> Adding libdw DWARF post unwind support, which is part
> of elfutils-devel/libdw-dev package from version 0.158.
>
> Note: the libdw code needs some support for dwarf unwinding
> on ARM64, this code is submitted seperately on t
The alarm of the hym8563 only supports a minute accuracy, while
the uie wants an alarm one second in the future. Therefore things like
the select() syscall will fail with a timeout, because the next alarm
will happen in a worst case of 60 seconds.
Signed-off-by: Heiko Stuebner
Cc: sta...@vger.ker
On Tue, 6 May 2014, Vince Weaver wrote:
> In any case if we can get the recent patches applied in time for 3.15 I
> think it will turn out to be a nice release perf-event-stability wise.
I should also mention I have a list of open perf_fuzzer issues here:
http://web.eece.maine.edu/~vwea
On Tue, May 06, 2014 at 09:28:07AM -0700, H. Peter Anvin wrote:
> On 04/25/2014 01:10 AM, Cyrill Gorcunov wrote:
> > Tracking dirty status on 2 level pages requires very ugly macros
> > and taking into account how old the machines who can operate
> > without PAE mode only are, lets drop soft dirty
On Tue, 2014-05-06 at 09:45 -0700, j...@joshtriplett.org wrote:
> Sounds like we have some optimization to do, then; there's no
> fundamental unfixable reason for that delta.
I think you have little idea of the reasons for this delta.
Some servers handle 10 millions of TCP flows, using as little
On Tue, May 06, 2014 at 04:20:27PM +0100, Sasha Levin wrote:
> On 05/02/2014 09:41 AM, Catalin Marinas wrote:
> > Currently, kmemleak_early_log is disabled at the beginning of the
> > kmemleak_init() function, before the full kmemleak tracing is actually
> > enabled. In this small window, kmem_cach
On Sun, May 04, 2014 at 11:53:22AM -0700, Olof Johansson wrote:
> On Sun, May 4, 2014 at 10:42 AM, Jason Cooper wrote:
> > On Sat, May 03, 2014 at 03:51:11PM -0700, Olof Johansson wrote:
> >> Cases like these are easiest that we just take the patch directly in
> >> an early-merge branch (i.e. clea
On Apr 24, 2014, at 9:36 AM, Santosh Shilimkar wrote:
> On Thursday 24 April 2014 12:31 PM, Andy Gross wrote:
>> Add placeholder Kconfig and linkage for driver/soc.
>>
>> The first patch set that implemented this was authored by Santosh Shilimkar:
>> https://lkml.org/lkml/2014/2/28/567
>>
>> S
On Tue, May 6, 2014 at 9:52 AM, Al Viro wrote:
>
> OK... There's one more thing I would like to put there, if you are going to
> be away for the week. It has sat in -next for a while, and it could stay
> there, except that there's a _lot_ of followups touching stuff all over the
> tree and I'd o
+coalesce formats
(This is untested)
Cc: Guan Xuetao
Cc: Andrew Morton
Signed-off-by: Fabian Frederick
---
arch/unicore32/mm/ioremap.c | 9 ++---
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/arch/unicore32/mm/ioremap.c b/arch/unicore32/mm/ioremap.c
index 13068ee..5d9568c
Add the missing 'compatible' property to device tree root node of
- rk3066a-bqcurie2.dts
- rk3188-radxarock.dts
and document the new values.
Signed-off-by: Beniamino Galvani
---
v2:
- use mundoreader prefix instead of bq as suggested by Heiko Stuebner
Documentation/devicetree/bindings/arm
Add new vendor prefixes for:
* Mundo Reader S.L., a company that produces tablets and e-readers
* Radxa, manufacturer of ARM boards
Signed-off-by: Beniamino Galvani
---
v2:
- use mundoreader prefix instead of bq as suggested by Heiko Stuebner
Documentation/devicetree/bindings/vendor-
Also fixes some checkpatch warnings
-Static initialization
-Lines over 80 characters
Cc: Ananth N Mavinakayanahalli
Cc: Andrew Morton
Signed-off-by: Fabian Frederick
---
kernel/kprobes.c | 38 --
1 file changed, 20 insertions(+), 18 deletions(-)
diff --git
On 05/06/2014 09:41 AM, j...@joshtriplett.org wrote:
On Tue, May 06, 2014 at 11:59:41AM -0400, David Miller wrote:
Making 2MB RAM machines today makes no sense at all.
The lowest end dirt cheap smartphone, something which fits on
someone's pocket, has gigabytes of ram.
The lowest-end smartpho
This patch also fixes one function declaration over 80 characters.
Cc: Andrew Morton
Signed-off-by: Fabian Frederick
---
kernel/latencytop.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/kernel/latencytop.c b/kernel/latencytop.c
index a462b31..a028127 100644
--- a/ker
From: Dave Jones
Date: Tue, 6 May 2014 12:29:46 -0400
> It seems like forever you go you sent me patches to trinity to make it
> work on sparc. I'm curious if you've tried running it again more
> recently ? Given the work I've done it to do more creative things with
> VM related syscalls, I wou
From: Eric Dumazet
Date: Tue, 06 May 2014 09:39:19 -0700
> I have started using linux on 386/486 pcs which had more than 2MB of
> memory, it makes me sad we want linux-3.16 to run on this kind of
> hardware, and consuming time to save few KB here and here.
+1
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On Thu, May 01, 2014 at 07:21:06PM +0200, Roland Stigge wrote:
> On 01/05/14 08:26, Brian Norris wrote:
> > This defconfig contains the CONFIG_M25P80 symbol, which is now
> > dependent on the MTD_SPI_NOR symbol. Add CONFIG_MTD_SPI_NOR to satisfy
> > the new dependency.
>
> Can't the CONFIG_M25P80
On Tue, May 06, 2014 at 01:31:24PM +0200, Heiko Stübner wrote:
> Am Dienstag, 6. Mai 2014, 13:13:46 schrieb Beniamino Galvani:
> > On Sun, May 04, 2014 at 02:57:52PM +0200, Matthias Brugger wrote:
> > > 2014-05-02 1:32 GMT+02:00 Heiko Stübner :
> > > > Hi Beniamino,
> > > >
> > > > Am Donnerstag,
From: j...@joshtriplett.org
Date: Tue, 6 May 2014 09:41:08 -0700
> Every KB of RAM costs real money and SoC die area (for eDRAM/eSRAM).
Another poster commented that 16MB of DRAM would be cheaper than
the 2MB of ram you have on these boards, probably one that fits
your size profile is available a
Fixing some checkpatch warnings:
-Convert printk to pr_foo()
-Remove spaces between function and (
-Split lines > 80 characters
Cc: Thomas Gleixner
Cc: Andrew Morton
Signed-off-by: Fabian Frederick
---
kernel/posix-timers.c | 57 +++
1 file chang
From: j...@joshtriplett.org
Date: Tue, 6 May 2014 09:45:46 -0700
> The kernel can do the same. Consider the idea of analyzing a set of
> userspace programs, determining what kernel functionality they do and
> don't need, feeding that information into the kernel build process, and
> automatically
Cc: Paul Gortmaker
Cc: Andrew Morton
Signed-off-by: Fabian Frederick
---
kernel/profile.c | 14 +-
1 file changed, 5 insertions(+), 9 deletions(-)
diff --git a/kernel/profile.c b/kernel/profile.c
index cb980f0..c1204e2 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -64,12
On Tue, May 6, 2014 at 8:34 AM, Tom Zanussi wrote:
> On Tue, 2014-05-06 at 08:20 -0700, Alexei Starovoitov wrote:
>> On Tue, May 6, 2014 at 6:34 AM, Tom Zanussi
>> wrote:
>> > On Tue, 2014-05-06 at 09:25 +0200, Richard Weinberger wrote:
>> >> On Tue, May 6, 2014 at 12:25 AM, Andi Kleen wrote:
>
On Tue, May 06, 2014 at 01:17:52PM -0400, David Miller wrote:
> From: j...@joshtriplett.org
> Date: Tue, 6 May 2014 09:45:46 -0700
>
> > The kernel can do the same. Consider the idea of analyzing a set of
> > userspace programs, determining what kernel functionality they do and
> > don't need, fe
Those 2 arrays are being passed to lockdep_init_map with const char *
and stored in lockdep_map the same way
Cc: Dipankar Sarma
Cc: Andrew Morton
Signed-off-by: Fabian Frederick
---
kernel/rcu/tree.c | 18 ++
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/kernel
Being able to show a cpumask of events can be useful as some events
may affect only some CPUs. There is no standard way to record the
cpumask and converting it to a string is rather expensive during
the trace as traces happen in hotpaths. It would be better to record
the raw event mask and be able
Hi Greg,
I think Bjorn is waiting for an ack from you on this. Do you approve of
this approach from a driver-core perspective? Thanks,
Alex
On Fri, 2014-04-04 at 14:19 -0600, Alex Williamson wrote:
> The driver_override field allows us to specify the driver for a device
> rather than relying o
On Tue, May 6, 2014 at 12:10 PM, Beniamino Galvani wrote:
> Add the missing 'compatible' property to device tree root node of
>
> - rk3066a-bqcurie2.dts
> - rk3188-radxarock.dts
>
> and document the new values.
>
> Signed-off-by: Beniamino Galvani
Acked-by: Rob Herring
> ---
>
> v2:
> - use
On Tue, May 6, 2014 at 12:10 PM, Beniamino Galvani wrote:
> Add new vendor prefixes for:
>
> * Mundo Reader S.L., a company that produces tablets and e-readers
> * Radxa, manufacturer of ARM boards
>
> Signed-off-by: Beniamino Galvani
Acked-by: Rob Herring
> ---
>
> v2:
> - use mundor
On 05/01/2014 04:44 AM, Mel Gorman wrote:
> Currently it's calculated once per zone in the zonelist.
>
> Signed-off-by: Mel Gorman
> Acked-by: Johannes Weiner
Reviewed-by: Rik van Riel
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On 05/01/2014 04:44 AM, Mel Gorman wrote:
> ALLOC_NO_WATERMARK is set in a few cases. Always by kswapd, always for
> __GFP_MEMALLOC, sometimes for swap-over-nfs, tasks etc. Each of these cases
> are relatively rare events but the ALLOC_NO_WATERMARK check is an unlikely
> branch in the fast path. T
On Mon, May 5, 2014 at 3:14 PM, Viresh Kumar wrote:
> On 5 May 2014 19:08, Nishanth Menon wrote:
>> With the brief history of the patch in linux-pm, I am unable to
>> understand why not just use ceil/floor routines to pick up data the
>> way you need it. It should not matter if we use an ordered
From: j...@joshtriplett.org
Date: Tue, 6 May 2014 10:21:06 -0700
> On Tue, May 06, 2014 at 01:17:52PM -0400, David Miller wrote:
>> From: j...@joshtriplett.org
>> Date: Tue, 6 May 2014 09:45:46 -0700
>>
>> > The kernel can do the same. Consider the idea of analyzing a set of
>> > userspace progr
Adds driver for SPI RTC Microchip MCP795. Does only support saving/loading time
from the chip (i. e. no alarms/power events/ID).
Signed-off-by: Josef Gajdusek
---
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 2e565f8..bcffe07 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kcon
On Tue, May 06, 2014 at 10:03:24AM -0700, Eric Dumazet wrote:
> On Tue, 2014-05-06 at 09:45 -0700, j...@joshtriplett.org wrote:
>
> > Sounds like we have some optimization to do, then; there's no
> > fundamental unfixable reason for that delta.
>
> I think you have little idea of the reasons for
On 05/06, Kirill Tkhai wrote:
>
> User may want to prohibit autoloading of some modules,
> which happens when someone in kernel calls request_module().
>
> For comparison, udev considers blacklist even if corresponding
> hardware presents in the system. In-kernel request_module()
> functionality is
From: Mr. Mark Thompson
Bank of Africa Burkina Faso.
Dear Friend,
I am the manager account/audit department (Annexe) Bank of African (BOA) in
Burkina faso. I would like you to indicate your interest to receive this
transfer of US$10.5 Million; as the beneficiary (next of kin) to our
late clie
If NO_DMA=y, depending on the gcc version:
drivers/built-in.o: In function `s3c_hsotg_map_dma':
s3c-hsotg.c:(.text+0x375b2c): undefined reference to
`usb_gadget_map_request'
drivers/built-in.o: In function `s3c_hsotg_unmap_dma':
s3c-hsotg.c:(.text+0x376a32): undefined reference to
Hi Will,
On 6 May 2014 19:00, Will Deacon wrote:
> Hi Jean,
>
> On Tue, May 06, 2014 at 04:55:33PM +0100, Jean Pihet wrote:
>> Adding libdw DWARF post unwind support, which is part
>> of elfutils-devel/libdw-dev package from version 0.158.
>>
>> Note: the libdw code needs some support for dwarf u
On Tue, 6 May 2014, Cyrill Gorcunov wrote:
> On Tue, May 06, 2014 at 12:11:49PM -0400, Vince Weaver wrote:
> >
> > If I had infinite time I'd try to get the SGI Octane, Ultrasparc, and
> > avr32 boards up and going again.
>
> Btw, Vince, perf_fuzzer -- it's
> http://web.eece.maine.edu/~vweaver
On Tue, May 06, 2014 at 06:41:55PM +0100, Jean Pihet wrote:
> Hi Will,
>
> On 6 May 2014 19:00, Will Deacon wrote:
> > Hi Jean,
> >
> > On Tue, May 06, 2014 at 04:55:33PM +0100, Jean Pihet wrote:
> >> Adding libdw DWARF post unwind support, which is part
> >> of elfutils-devel/libdw-dev package f
This is a patch to fix coding style issue found by
scripts/checkpatch.pl utility.
Signed-off-by: Clément Calmels
---
drivers/staging/sep/sep_dev.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/staging/sep/sep_dev.h b/drivers/staging/sep/sep_dev.h
index 5f6a07f..5faeefa1 100644
-
On Tue, May 06, 2014 at 01:16:43PM -0400, David Miller wrote:
> From: j...@joshtriplett.org
> Date: Tue, 6 May 2014 09:41:08 -0700
>
> > Every KB of RAM costs real money and SoC die area (for eDRAM/eSRAM).
>
> Another poster commented that 16MB of DRAM would be cheaper than
> the 2MB of ram you h
Hi all,
On 06/05/2014 06:24 μμ, Geert Uytterhoeven wrote:
> Hi Stratos,
>
> On Wed, Apr 30, 2014 at 12:26 AM, Rafael J. Wysocki
> wrote:
>> On Tuesday, April 29, 2014 07:05:17 PM Stratos Karafotis wrote:
>>> On 29/04/2014 07:17 πμ, Viresh Kumar wrote:
On 26 April 2014 01:45, Stratos Karafo
On Tue, May 06, 2014 at 04:26:19PM +0100, Jean Pihet wrote:
> Adding libdw DWARF post unwind support, which is part
> of elfutils-devel/libdw-dev package from version 0.158.
>
> The new code is contained in unwin-libdw.c object, and
> implements unwind__get_entries unwind interface function.
Re
Tuesday, May 6, 2014, 11:51:04 AM, you wrote:
> On 02/05/14 22:01, Sander Eikelenboom wrote:
>> Hi,
>>
>> On a machine running Xen-Unstable, i just tried running a 3.15-rc3 kernel
>> with
>> CONFIG_DEBUG_SLAB=y
>>
>> [0.748297] Kernel panic - not syncing: Out of memory and no killable
>>
On Wed, Apr 30, 2014 at 04:27:10PM +0530, Shaik Ameer Basha wrote:
> This series is going on for quite a long time and most of the patches here
> doesn't depend on dt bindings. As Exynos IOMMU h/w is introducing new versions
> very frequently, maintaining and reviewing all these patches again and
>
Today the smp-call-function code just prints a warning if we get an IPI on
an offline CPU. This info is sufficient to let us know that something went
wrong, but often it is very hard to debug exactly who sent the IPI and why,
from this info alone.
In most cases, we get the warning about the IPI to
During CPU offline, stop-machine is used to take control over all the online
CPUs (via the per-cpu stopper thread) and then run take_cpu_down() on the CPU
that is to be taken offline.
But stop-machine itself has several stages: _PREPARE, _DISABLE_IRQ, _RUN etc.
The important thing to note here is
Hi,
There is a long-standing problem related to CPU hotplug which causes IPIs to
be delivered to offline CPUs, and the smp-call-function IPI handler code
prints out a warning whenever this is detected. Every once in a while this
(usually harmless) warning gets reported on LKML, but so far it has
On Tue, Mar 25, 2014 at 05:08:14PM -0500, Kim Phillips wrote:
> Use the correct memory type for device MMIO mappings: PAGE_S2_DEVICE.
>
> Signed-off-by: Kim Phillips
> ---
> arch/arm/kvm/mmu.c | 11 ---
> 1 file changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/kvm/mmu.
On 27.04.2014 09:37, Shaik Ameer Basha wrote:
From: Cho KyongHo
Some master device descriptor like fimc-is which is an abstraction
of very complex H/W may have multiple System MMUs. For those devices,
the design of the link between System MMU and its master H/W is needed
to be reconsidered.
A
Hi,
On Tuesday, May 06, 2014 07:37:01 PM Geert Uytterhoeven wrote:
> If NO_DMA=y, depending on the gcc version:
>
> drivers/built-in.o: In function `s3c_hsotg_map_dma':
> s3c-hsotg.c:(.text+0x375b2c): undefined reference to
> `usb_gadget_map_request'
> drivers/built-in.o: In functio
On 06.05.2014 19:59, Joerg Roedel wrote:
On Wed, Apr 30, 2014 at 04:27:10PM +0530, Shaik Ameer Basha wrote:
This series is going on for quite a long time and most of the patches here
doesn't depend on dt bindings. As Exynos IOMMU h/w is introducing new versions
very frequently, maintaining and r
On Tue, May 06, 2014 at 10:12:11AM -0700, Rick Jones wrote:
> On 05/06/2014 09:41 AM, j...@joshtriplett.org wrote:
> >On Tue, May 06, 2014 at 11:59:41AM -0400, David Miller wrote:
> >>Making 2MB RAM machines today makes no sense at all.
> >>
> >>The lowest end dirt cheap smartphone, something which
Hello Brian,
On Tue, May 06, 2014 at 09:44:34AM -0700, Brian Lilly wrote:
> With commit a264b981f2c76e281ef27e7232774bf6c54ec865 we're having eth0
> come up, then brought right back down with an MDIO rx timeout moments
> after. Adding back in the removed code keeps the interface alive and
> it's
On Thu, May 01, 2014 at 05:54:47PM +0900, Simon Horman wrote:
> [ CC linux-sh and Magnus Damm (shmobile co-maintainer) ]
>
> On Wed, Apr 30, 2014 at 11:26:37PM -0700, Brian Norris wrote:
> > These defconfigs contain the CONFIG_M25P80 symbol, which is now
> > dependent on the MTD_SPI_NOR symbol. Ad
On Mon, Apr 28, 2014 at 05:27:46PM -0500, Suthikulpanit, Suravee wrote:
> From: Jay Cornwall
>
> get_user_pages requires caller to hold a read lock on mmap_sem.
Right, but can't we just switch to get_user_pages_fast instead?
Joerg
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On 05/06/2014 01:05 PM, Catalin Marinas wrote:
> On Tue, May 06, 2014 at 04:20:27PM +0100, Sasha Levin wrote:
>> On 05/02/2014 09:41 AM, Catalin Marinas wrote:
>>> Currently, kmemleak_early_log is disabled at the beginning of the
>>> kmemleak_init() function, before the full kmemleak tracing is act
This small series provides another ~6% speedup on top of Bandan's patches.
It does so by speeding up instruction fetches. The three tricks, one per
patch, are to help the compiler a bit by redistributing the work between
do_insn_fetch_byte and do_insn_fetch, to avoid repeated checks on the
boundar
We do not need a memory copying loop anymore in insn_fetch; we
can use a byte-aligned pointer to access instruction fields directly
from the fetch_cache. This eliminates 40-80 cycles (corresponding to
a 5-7% improvement in performance) from each instruction.
Signed-off-by: Paolo Bonzini
---
arc
do_insn_fetch_bytes will only be called once in a given insn_fetch and
insn_fetch_arr, because in fact it will only be called at most twice
for any instruction and the first call is explicit in x86_decode_insn.
This observation lets us hoist the call out of the memory copying loop.
It does not buy
This simplifies the code a bit, especially the overflow checks.
Signed-off-by: Paolo Bonzini
---
arch/x86/include/asm/kvm_emulate.h | 4 ++--
arch/x86/kvm/emulate.c | 34 +++---
arch/x86/kvm/trace.h | 6 +++---
3 files changed, 20 insertion
Hoist the common case up from do_insn_fetch_byte to do_insn_fetch,
and prime the fetch_cache in x86_decode_insn. This helps both the
compiler and the branch predictor.
Signed-off-by: Paolo Bonzini
---
arch/x86/kvm/emulate.c | 67 +++---
1 file changed
On Tuesday 06 May 2014 19:59:05 Joerg Roedel wrote:
> On Wed, Apr 30, 2014 at 04:27:10PM +0530, Shaik Ameer Basha wrote:
> > This series is going on for quite a long time and most of the patches here
> > doesn't depend on dt bindings. As Exynos IOMMU h/w is introducing new
> > versions
> > very fr
> This patch has no effect on a small machine, because we already
> dynamically size this hash table.
Good point.
>
> (The factor is one slot per 2MB of low memory)
Ok I need to fix that, because a single slot on a 2MB system
is likely not enough.
-Andi
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On Tue 06-05-14 12:51:50, Johannes Weiner wrote:
> On Tue, May 06, 2014 at 06:12:56PM +0200, Michal Hocko wrote:
> > On Tue 06-05-14 11:21:12, Johannes Weiner wrote:
> > > On Tue, May 06, 2014 at 04:32:42PM +0200, Michal Hocko wrote:
[...]
> > > > The strongest point was made by Rik when he claimed
> We simply can not compete with user space, as a programmer is free to
> keep what he really wants/needs.
Not true.
With my patches and LTO Linux can be competive with LWIP+socket layer.
(about 60K more text). And it's easier to use because it's just
the standard interface.
> I have started usi
On Tue, May 6, 2014 at 10:55 AM, wrote:
> On Tue, May 06, 2014 at 01:16:43PM -0400, David Miller wrote:
>> From: j...@joshtriplett.org
>> Date: Tue, 6 May 2014 09:41:08 -0700
>>
>> > Every KB of RAM costs real money and SoC die area (for eDRAM/eSRAM).
>>
>> Another poster commented that 16MB of D
Hi Sören
On Mon, May 5, 2014 at 6:16 PM, Sören Brinkmann
wrote:
>
> Hi Thor,
>
> On Mon, 2014-05-05 at 05:52PM -0500, ttha...@altera.com wrote:
> > From: Thor Thayer
> >
> > Addition of the Altera SDRAM controller bindings and device
> > tree changes to the Altera SoC project. The "syscon" param
Hi Pankaj,
On 06.05.2014 10:51, Pankaj Dubey wrote:
Let's move I2C interrupt re-configuration code from machine
file exynos.c to I2C driver. Since only Exynos5250, and
Exynos5420 need to do this, added syscon based phandle to
i2c device nodes of respective SoC DT files.
CC: Rob Herring
CC: Ran
On Tue, 2014-05-06 at 17:59 +0100, Al Viro wrote:
> On Tue, May 06, 2014 at 04:32:27PM +0300, Dmitry Kasatkin wrote:
> > Hi,
> >
> > I have discovered one IMA related issue.
> >
> > IMA file hash is re-calculate if needed on file close.
> >
> > It works with ftruncate(fd, length) syscall, becau
2014-05-06 11:11 GMT-07:00 Uwe Kleine-König :
> Hello Brian,
>
> On Tue, May 06, 2014 at 09:44:34AM -0700, Brian Lilly wrote:
>> With commit a264b981f2c76e281ef27e7232774bf6c54ec865 we're having eth0
>> come up, then brought right back down with an MDIO rx timeout moments
>> after. Adding back in
On 05/01/2014 04:44 AM, Mel Gorman wrote:
> In the free path we calculate page_to_pfn multiple times. Reduce that.
>
> Signed-off-by: Mel Gorman
Acked-by: Rik van Riel
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On 05/01/2014 04:44 AM, Mel Gorman wrote:
> get_pageblock_migratetype() is called during free with IRQs disabled. This
> is unnecessary and disables IRQs for longer than necessary.
>
> Signed-off-by: Mel Gorman
Acked-by: Rik van Riel
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> So why bothers 3.15+ Linux kernel? Why not use an old kernel e.g. 2.4.x?
> 2.4.x kernel doesn't have so many new features you want to get rid of here.
Nobody wants to be stuck on an ancient kernel forever.
-Andi
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On 05/01/2014 04:44 AM, Mel Gorman wrote:
> X86 prefers the use of unsigned types for iterators and there is a
> tendency to mix whether a signed or unsigned type if used for page
> order. This converts a number of sites in mm/page_alloc.c to use
> unsigned int for order where possible.
>
> Signed
On Tue, May 6, 2014 at 7:56 AM, Emil Goode wrote:
> The following commit left some unused variables behind.
>
> commit 80db2734acbc78db12798cfb611d6acc7fe389e6
> Author: Fredrick John Berchmans
> Date: Fri May 2 19:50:15 2014 -0700
>
> staging: lustre use kernel socket sockopt apis
>
> Sign
On Tue, May 06, 2014 at 02:39:07PM +0200, Robert Richter wrote:
> Creation of events basically does (function arguments are a bit pseudo
> code):
>
> attr.type = pmu_type;
> attr.config = event_config;
> event = perf_event_open(attr, cpu, ...);
> id = ioctl(event, PERF_EV
On 05/01/2014 04:44 AM, Mel Gorman wrote:
> shmem_getpage_gfp uses an atomic operation to set the SwapBacked field
> before it's even added to the LRU or visible. This is unnecessary as what
> could it possible race against? Use an unlocked variant.
>
> Signed-off-by: Mel Gorman
> Acked-by: Joha
On Tue, May 06, 2014 at 02:39:07PM +0200, Robert Richter wrote:
> Events could also be shared transparently. This means, if there is
> already an event running with the same attr, it could be reused. Not
> sure if this makes sense much and is also feasible. Most events are
> opened with writable bu
On 05/01/2014 04:44 AM, Mel Gorman wrote:
> There should be no references to it any more and a parallel mark should
> not be reordered against us. Use non-locked varient to clear page active.
>
> Signed-off-by: Mel Gorman
Acked-by: Rik van Riel
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On Tue, May 06, 2014 at 02:39:07PM +0200, Robert Richter wrote:
> I rather would change the ioctl to
>
> id = ioctl(PERF_EVENT_IOC_SET_PERSIST, arg);
>
> arg != 0:create persistent event (unclaim)
> arg == 0:delete persistent event (claim)
>
> This has the advantage that the naming is
On Tue, May 6, 2014 at 11:32 AM, Andi Kleen wrote:
>> We simply can not compete with user space, as a programmer is free to
>> keep what he really wants/needs.
>
> Not true.
>
> With my patches and LTO Linux can be competive with LWIP+socket layer.
> (about 60K more text). And it's easier to use b
This is a patch to add support for
maxim dallas rtc ds1343 and ds1344
Signed-off-by: Raghavendra Chandra Ganiga
---
drivers/rtc/Kconfig | 10 +
drivers/rtc/Makefile |1 +
drivers/rtc/rtc-ds1343.c | 679 ++
3 files changed, 690 insertion
Hi Pankaj,
On 06.05.2014 10:51, Pankaj Dubey wrote:
Let's move SYS_I2C_CFG register save/restore during s2r into i2c driver.
This will help in removing static iodesc based mapping from exynos.c.
Also will help in removing SoC specific checks in pm.c making it
more independent of such macros.
CC
Boris,
> -Original Message-
> From: Boris BREZILLON [mailto:boris.brezil...@free-electrons.com]
> Sent: Tuesday, May 06, 2014 10:28 AM
> To: Bryan Evenson
> Cc: Andrew Victor; Nicolas Ferre; Jean-Christophe Plagniol-Villard; linux-arm-
> ker...@lists.infradead.org; Alessandro Zummo; rtc-
>
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