Re: [RFC PATCH v2 0/1] FPGA subsystem core

2013-10-04 Thread Michal Simek
On 10/05/2013 01:49 AM, Jason Gunthorpe wrote: > On Fri, Oct 04, 2013 at 04:33:41PM -0700, Greg Kroah-Hartman wrote: > >>> I agree that the firmware interface makes sense when the use of the >>> FPGA is an implementation detail in a fixed hardware configuration, >>> but that is a fairly restricted

Re: [RFC PATCH v2 0/1] FPGA subsystem core

2013-10-04 Thread Michal Simek
On 10/05/2013 07:34 AM, H. Peter Anvin wrote: > I do it all the time. > > JAM/STAPL seems to me to be more used for exotic connections to serial flash > for persistent programming. ok. I expect you have any code which you are using. Why not to share it with us to see how you are using it? I wil

Re: [PATCH 2/2] mm/sparsemem: Fix a bug in free_map_bootmem when CONFIG_SPARSEMEM_VMEMMAP

2013-10-04 Thread Zhang Yanfei
Hello wanpeng, On 10/05/2013 01:54 PM, Wanpeng Li wrote: > Hi Yanfei, > On Thu, Oct 03, 2013 at 11:32:02AM +0800, Zhang Yanfei wrote: >> From: Zhang Yanfei >> >> We pass the number of pages which hold page structs of a memory >> section to function free_map_bootmem. This is right when >> !CONFIG_

Re: [RFC PATCH v2 0/1] FPGA subsystem core

2013-10-04 Thread Michal Simek
On 10/05/2013 01:50 AM, H. Peter Anvin wrote: > On 10/04/2013 04:33 PM, Greg Kroah-Hartman wrote: >> >> Ideally I thought this would be just like "firmware", you dump the file >> to the FPGA, it validates it and away you go with a new image running in >> the chip. >> >> But, it sounds like this is

Re: [PATCH] kernel/exit.c: call read_unlock() when failure occurs after already called read_lock() in do_wait().

2013-10-04 Thread Al Viro
On Sat, Oct 05, 2013 at 01:53:26PM +0800, Chen Gang wrote: > If failure occurs after called read_lock(), need call read_unlock() too. > > It can fail in multiple position, so add new tag 'fail_lock' for it > (also can let 'if' only content one jump statement). You know, this is getting too freque

Re: [PATCH 10/26] lustre: Convert ll_get_user_pages() to use get_user_pages_fast()

2013-10-04 Thread Dilger, Andreas
On 2013/10/02 8:27 AM, "Jan Kara" wrote: >CC: Greg Kroah-Hartman >CC: Peng Tao >CC: Andreas Dilger >CC: hpdd-disc...@lists.01.org >Signed-off-by: Jan Kara Acked-by: Andreas Dilger >--- > drivers/staging/lustre/lustre/llite/rw26.c | 7 ++- > 1 file changed, 2 insertions(+), 5 deletions(-)

Re: lustre: why does cfs_get_random_bytes() exist?

2013-10-04 Thread Dilger, Andreas
On 2013/10/03 5:45 PM, "Theodore Ts'o" wrote: >On Thu, Oct 03, 2013 at 11:06:58PM +, Dilger, Andreas wrote: >> >> The Lustre cfs_get_random_bytes() incorporates (via cfs_rand()) a seed >> which also hashes in the addresses from any network interfaces that are >> configured. >> Conversely, cfs

Re: [PATCH v2 3/3] i2c: xilinx: Use devm_* functions

2013-10-04 Thread Wolfram Sang
> > First register the handler, then activate interrupts. You are right, > > this needs to be fixed, too. > > Do you want me to create separate patch just about moving request irq in > front of > xiic_reinit()? And then devm_ conversion? Yes, seperate, please. signature.asc Description: Digi

[PATCH] kernel/exit.c: call read_unlock() when failure occurs after already called read_lock() in do_wait().

2013-10-04 Thread Chen Gang
If failure occurs after called read_lock(), need call read_unlock() too. It can fail in multiple position, so add new tag 'fail_lock' for it (also can let 'if' only content one jump statement). Signed-off-by: Chen Gang --- kernel/exit.c |8 ++-- 1 files changed, 6 insertions(+), 2 dele

Re: [RFC PATCH v2 0/1] FPGA subsystem core

2013-10-04 Thread H. Peter Anvin
I do it all the time. JAM/STAPL seems to me to be more used for exotic connections to serial flash for persistent programming. Jason Gunthorpe wrote: >On Fri, Oct 04, 2013 at 09:00:28PM -0700, H. Peter Anvin wrote: > >> Every FPGA toolchain I know of has a way to emit JAM/STAPL bytecode >> file

Re: [RFC PATCH v2 0/1] FPGA subsystem core

2013-10-04 Thread Jason Gunthorpe
On Fri, Oct 04, 2013 at 09:00:28PM -0700, H. Peter Anvin wrote: > Every FPGA toolchain I know of has a way to emit JAM/STAPL bytecode > files... and a fair number of programming scenarios need them. Yes, but now you are talking about JTAG. JTAG is a very different problem than configuring over t

[PATCH] net: wan: remove deprecated IRQF_DISABLED

2013-10-04 Thread Michael Opdenacker
This patch proposes to remove the use of the IRQF_DISABLED flag It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker --- drivers/net/wan/hostess_sv11.c | 2 +- drivers/net/wan/sealevel.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --g

[PATCH] irda: remove deprecated IRQF_DISABLED

2013-10-04 Thread Michael Opdenacker
This patch proposes to remove the use of the IRQF_DISABLED flag It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker --- drivers/net/irda/bfin_sir.c | 4 ++-- drivers/net/irda/donauboe.c | 4 ++-- drivers/net/irda/sh_irda.c | 2 +- drivers/net/irda/sh_sir.

[PATCH] net: hamradio/yam: remove deprecated IRQF_DISABLED

2013-10-04 Thread Michael Opdenacker
This patch proposes to remove the use of the IRQF_DISABLED flag It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker --- drivers/net/hamradio/yam.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/hamradio/yam.c b/drivers/net/

[PATCH] net: hamradio/scc: remove deprecated IRQF_DISABLED

2013-10-04 Thread Michael Opdenacker
This patch proposes to remove the use of the IRQF_DISABLED flag It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker --- drivers/net/hamradio/scc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/hamradio/scc.c b/drivers/net/

[PATCH] ARM: gemini: remove obsolete IRQF_DISABLED

2013-10-04 Thread Michael Opdenacker
This patch proposes to remove the use of the IRQF_DISABLED flag It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker --- arch/arm/mach-gemini/time.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-gemini/time.c b/arch/arm/m

Re: [RFC PATCH v2 0/1] FPGA subsystem core

2013-10-04 Thread H. Peter Anvin
Every FPGA toolchain I know of has a way to emit JAM/STAPL bytecode files... and a fair number of programming scenarios need them. Jason Gunthorpe wrote: >On Fri, Oct 04, 2013 at 04:33:41PM -0700, Greg Kroah-Hartman wrote: > >> > I agree that the firmware interface makes sense when the use of th

Re: [PATCH 6/9][v5] powerpc/perf: Define big-endian version of perf_mem_data_src

2013-10-04 Thread Sukadev Bhattiprolu
Michael Ellerman [mich...@ellerman.id.au] wrote: | On Tue, Oct 01, 2013 at 05:15:07PM -0700, Sukadev Bhattiprolu wrote: | > perf_mem_data_src is an union that is initialized via the ->val field | > and accessed via the bitmap fields. For this to work on big endian | > platforms, we also need a big-

Re: [RFC PATCH] PPC: KVM: vfio kvm device: support spapr tce

2013-10-04 Thread Alexey Kardashevskiy
On 10/05/2013 11:52 AM, Alexey Kardashevskiy wrote: > On 05.10.2013 2:05, Alex Williamson wrote: >> On Fri, 2013-10-04 at 22:24 +1000, Alexey Kardashevskiy wrote: >>> This is a very rough change set required for ppc64 to use this KVM device. >>> >>> vfio_rm.c is a piece of code which is going to be

Re: [PATCH 4/6] trace: Make UPROBES depend on PERF_EVENTS

2013-10-04 Thread Andi Kleen
On Fri, Oct 04, 2013 at 08:52:53PM -0400, Steven Rostedt wrote: > On Fri, 4 Oct 2013 14:39:46 -0700 > Andi Kleen wrote: > > > From: Andi Kleen > > > > UPROBES need the perf events code, so add a dependency > > from PERF_EVENTS to UPROBES. > > Can you please be a bit more specific on what upro

Re: fs/attr.c:notify_change locking warning.

2013-10-04 Thread Dave Chinner
On Fri, Oct 04, 2013 at 08:52:10PM -0400, Dave Jones wrote: > WARNING: CPU: 3 PID: 26128 at fs/attr.c:178 notify_change+0x34d/0x360() > Modules linked in: dlci 8021q garp sctp snd_seq_dummy bridge stp tun fuse > rfcomm hidp ipt_ULOG nfc caif_socket caif af_802154 phonet af_rxrpc bnep > bluetooth

[GIT PULL] PCI updates for v3.12

2013-10-04 Thread Bjorn Helgaas
Hi Linus, Here's a fix for v3.12. We merged what was intended to be an MMCONFIG cleanup, but in fact, for systems without _CBA (which is almost everything), it broke extended config space for domain 0 and it broke all config space for other domains. This reverts the change. Bjorn The followin

[RFC][PATCH 4/3] vfs: Allow rmdir to remove mounts in all but the current mount namespace

2013-10-04 Thread Eric W. Biederman
Programs have been known to test for empty directories by attempting to remove them. To keep from violating the principle of least surprise don't let directories the caller can see with someting mounted on them be deleted. With a little luck this may prevent commands stupid commands like rm -rf

Re: [PATCH] ARM: imx: Include linux/err.h

2013-10-04 Thread Shawn Guo
On Sat, Oct 05, 2013 at 10:24:23AM +0800, Shawn Guo wrote: > On Mon, Sep 30, 2013 at 02:04:51PM +0200, Thierry Reding wrote: > > The IS_ERR() macro is defined in the linux/err.h header file, so include > > it explicitly. > > Hmm, I can not find IS_ERR() in arch/arm/mach-imx/cpu.c Sorry, I did not

Re: [PATCH] ARM: imx: Include linux/err.h

2013-10-04 Thread Shawn Guo
On Mon, Sep 30, 2013 at 02:04:51PM +0200, Thierry Reding wrote: > The IS_ERR() macro is defined in the linux/err.h header file, so include > it explicitly. Hmm, I can not find IS_ERR() in arch/arm/mach-imx/cpu.c Shawn > Signed-off-by: Thierry Reding > --- > arch/arm/mach-imx/cpu.c | 2 +- > 1

[PATCH] irqchip: irq-gic: Make local functions static

2013-10-04 Thread Fabio Estevam
From: Fabio Estevam Fix the following sparse warnings: drivers/irqchip/irq-gic.c:651:6: warning: symbol 'gic_raise_softirq' was not declared. Should it be static? drivers/irqchip/irq-gic.c:831:29: warning: symbol 'gic_irq_domain_ops' was not declared. Should it be static? drivers/irqchip/irq-g

[PATCH] irq: irqdomain: Include

2013-10-04 Thread Fabio Estevam
From: Fabio Estevam Fix the following sparse warning: kernel/irq/irqdomain.c:468:14: warning: symbol 'irq_create_of_mapping' was not declared. Should it be static? Signed-off-by: Fabio Estevam --- kernel/irq/irqdomain.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/irq/irqdomain

Re: [tpmdd-devel] [PATCH 06/13] tpm: Remove redundant dev_set_drvdata

2013-10-04 Thread Ashley Lai
On Mon, 2013-09-23 at 12:14 -0600, Jason Gunthorpe wrote: > TPM drivers should not call dev_set_drvdata (or aliases), only the core > code is allowed to call dev_set_drvdata, and it does it during > tpm_register_hardware. > > These extra sets are harmless, but are an anti-pattern that many drivers

Re: linux-next: Tree for Oct 3

2013-10-04 Thread Guenter Roeck
On 10/04/2013 10:04 AM, Olof Johansson wrote: On Fri, Oct 4, 2013 at 6:44 AM, Guenter Roeck wrote: On 10/03/2013 10:41 PM, Olof Johansson wrote: On Thu, Oct 3, 2013 at 10:23 PM, Guenter Roeck wrote: On 10/03/2013 06:02 PM, Mark Brown wrote: Hi all, Better late than never I've uploaded

Good News

2013-10-04 Thread Mr. Zhu
Hello, I need to discuss with you about George. Please contact me immediately. Mr. Zhu -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the

Re: [RFC][PATCH 0/3] vfs: Detach mounts on unlink.

2013-10-04 Thread Eric W. Biederman
ebied...@xmission.com (Eric W. Biederman) writes: > I just noticed that Al's latest vfs changes posted yesterday mean I need > to rebase and possibly respin these patches, as all of the locking and > interesting bits of the dcache have changed. I don't think the > conflicts would be fun to resolv

Re: [RFC PATCH] PPC: KVM: vfio kvm device: support spapr tce

2013-10-04 Thread Alexey Kardashevskiy
On 05.10.2013 2:05, Alex Williamson wrote: > On Fri, 2013-10-04 at 22:24 +1000, Alexey Kardashevskiy wrote: >> This is a very rough change set required for ppc64 to use this KVM device. >> >> vfio_rm.c is a piece of code which is going to be called from the realmode >> (MMU off), >> and I will put

Re: [tpmdd-devel] [PATCH 05/13] tpm: Use container_of to locate the tpm_chip in tpm_open

2013-10-04 Thread Ashley Lai
On Mon, 2013-09-23 at 12:14 -0600, Jason Gunthorpe wrote: > misc_open sets the file->private_date to the misc_dev when calling > open. We can use container_of to go from the misc_dev back to the > tpm_chip. > > Future clean ups will move tpm_open into a new file and this change > means we do not h

Re: pipe/cred lockdep warning

2013-10-04 Thread Al Viro
On Fri, Oct 04, 2013 at 06:25:00PM -0700, Linus Torvalds wrote: > Any splice user has better have a fallback to a read/write loop anyway, so > I think the default of trying to splice was likely a bad decision. Ummm... Point. > That said, you're right that it's a big change. And maybe we don't r

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Re: [PATCH 4/6] trace: Make UPROBES depend on PERF_EVENTS

2013-10-04 Thread Steven Rostedt
On Fri, 4 Oct 2013 14:39:46 -0700 Andi Kleen wrote: > From: Andi Kleen > > UPROBES need the perf events code, so add a dependency > from PERF_EVENTS to UPROBES. Can you please be a bit more specific on what uprobes requires of perf? That is, what part of the perf events code is needed, and wh

fs/attr.c:notify_change locking warning.

2013-10-04 Thread Dave Jones
WARNING: CPU: 3 PID: 26128 at fs/attr.c:178 notify_change+0x34d/0x360() Modules linked in: dlci 8021q garp sctp snd_seq_dummy bridge stp tun fuse rfcomm hidp ipt_ULOG nfc caif_socket caif af_802154 phonet af_rxrpc bnep bluetooth rfkill can_bcm can_raw can llc2 pppoe pppox ppp_generic slhc irda c

Re: pipe/cred lockdep warning

2013-10-04 Thread Al Viro
On Fri, Oct 04, 2013 at 04:27:35PM -0700, Linus Torvalds wrote: > On Thu, Oct 3, 2013 at 11:56 AM, Al Viro wrote: > > > > Note, BTW, that splice to /proc//attr/ is broken. > > proc_pid_attr_write() is *not* supposed to allow partial writes at all. > > Frankly, I'd consider adding a ->splice_write(

Re: [PATCH v2 2/9] procfs: add proc_allow_access() to check if file's opener may access task

2013-10-04 Thread Eric W. Biederman
Andy Lutomirski writes: > On Fri, Oct 4, 2013 at 3:55 PM, Eric W. Biederman > wrote: >> Andy Lutomirski writes: >> >>> On Fri, Oct 4, 2013 at 12:41 PM, Djalal Harouni wrote: On Fri, Oct 04, 2013 at 12:32:09PM -0700, Andy Lutomirski wrote: > On Fri, Oct 4, 2013 at 12:27 PM, Djalal Har

Re: tty^Wrcu/perf lockdep trace.

2013-10-04 Thread Paul E. McKenney
On Fri, Oct 04, 2013 at 03:02:32PM -0700, Paul E. McKenney wrote: > On Fri, Oct 04, 2013 at 02:25:06PM -0700, Paul E. McKenney wrote: > > On Fri, Oct 04, 2013 at 08:52:39PM +0200, Peter Zijlstra wrote: > > > On Fri, Oct 04, 2013 at 10:09:54AM -0700, Paul E. McKenney wrote: > > > > On Fri, Oct 04, 2

Re: [RFC PATCH 0/7] cross rename

2013-10-04 Thread Linus Torvalds
On Fri, Oct 4, 2013 at 4:58 PM, Andy Lutomirski wrote: > > How hard would it be to also add RENAME_NOREPLACE that fails if the > destination already exists? Trivial. And I agree that that should be a good flag to have. Linus -- To unsubscribe from this list: send the line "unsubsc

Re: [RFC][PATCH 0/3] vfs: Detach mounts on unlink.

2013-10-04 Thread Eric W. Biederman
Linus Torvalds writes: > On Fri, Oct 4, 2013 at 3:41 PM, Eric W. Biederman > wrote: >> >> After thinking about it removing the restrictions on mount points >> appears safe, because it is just plain dumb to have a mount point >> in a directory that is not restricted to root only modifications. >

Re: [RFC PATCH 0/7] cross rename

2013-10-04 Thread Andy Lutomirski
On 10/01/2013 09:00 AM, Miklos Szeredi wrote: > This series adds a new syscall, renameat2(), which is the same as renameat() > but > with a flags argument. Internally i_op->reaname2() is also added, which can > later be merged with ->rename() but is kept separately for now, since this > would >

Re: Commit 07f9b61 breaks systems that don't implement a _CBA method

2013-10-04 Thread Yinghai Lu
On Fri, Oct 4, 2013 at 3:11 PM, Bjorn Helgaas wrote: > On Thu, Oct 3, 2013 at 7:18 PM, Hedi Berriche wrote: > It's regrettable that the code is so subtle. The obvious thing to do > would be to check for _CBA, and if it doesn't exist, look for an MCFG > entry. But for various historical reasons

Re: [RFC PATCH v2 0/1] FPGA subsystem core

2013-10-04 Thread H. Peter Anvin
On 10/04/2013 04:33 PM, Greg Kroah-Hartman wrote: > > Ideally I thought this would be just like "firmware", you dump the file > to the FPGA, it validates it and away you go with a new image running in > the chip. > > But, it sounds like this is much more complicated, so much so that > configfs mi

Re: [RFC PATCH v2 0/1] FPGA subsystem core

2013-10-04 Thread Jason Gunthorpe
On Fri, Oct 04, 2013 at 04:33:41PM -0700, Greg Kroah-Hartman wrote: > > I agree that the firmware interface makes sense when the use of the > > FPGA is an implementation detail in a fixed hardware configuration, > > but that is a fairly restricted use case all things considered. > > Ideally I tho

Re: [RFC/RFT v2 0/4] ALSA: hda - hdmi: ATI/AMD multi-channel and HBR support

2013-10-04 Thread Anssi Hannula
04.10.2013 10:06, Olivier Langlois kirjoitti: > Anssi, > > Your patch has been applied on 3.11.3 OK. >> >> I'm especially interested in testers with: >> >> - Older codecs other than 0x1002aa01. My best guess still is that the >> new code works on them as well. >> o On these I'd like to know

Re: [RFC PATCH v2 0/1] FPGA subsystem core

2013-10-04 Thread Greg Kroah-Hartman
On Fri, Oct 04, 2013 at 11:12:13AM -0700, H. Peter Anvin wrote: > On 10/04/2013 10:44 AM, Michal Simek wrote: > > > > If you look at it in general I believe that there is wide range of > > applications which just contain one bitstream per fpga and the > > bitstream is replaced by newer version i

Re: pipe/cred lockdep warning

2013-10-04 Thread Linus Torvalds
On Thu, Oct 3, 2013 at 11:56 AM, Al Viro wrote: > > Note, BTW, that splice to /proc//attr/ is broken. > proc_pid_attr_write() is *not* supposed to allow partial writes at all. > Frankly, I'd consider adding a ->splice_write() instance that would > simply return -EINVAL there... That sounds like t

Re: [PATCH v2 6/6] Introduce Intel RAPL power capping driver

2013-10-04 Thread Jacob Pan
On Fri, 04 Oct 2013 15:14:22 -0700 Joe Perches wrote: > Isn't LIMIT1/WINDOW1 used as ull anyway? > It doesn't hurt to show that the value is also ull. sure, I will make that change in the next set. thanks, Jacob -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the b

Re: [RFC][PATCH 0/3] vfs: Detach mounts on unlink.

2013-10-04 Thread Linus Torvalds
On Fri, Oct 4, 2013 at 3:41 PM, Eric W. Biederman wrote: > > After thinking about it removing the restrictions on mount points > appears safe, because it is just plain dumb to have a mount point > in a directory that is not restricted to root only modifications. > > This is a change in user visibl

Re: [PATCH v2 3/6] PowerCap: Added to drivers build

2013-10-04 Thread Gene Heskett
On Friday 04 October 2013, Srinivas Pandruvada wrote: >On 10/04/2013 01:22 PM, Gene Heskett wrote: [and snipped] >>> >> patch or patch-set in general? >> >> Not that my relatively untrained eyes can spot. >> >>> This change added powercap directory to the kernel build. Is something >>> wrong wi

Re: [PATCH v2 2/9] procfs: add proc_allow_access() to check if file's opener may access task

2013-10-04 Thread Andy Lutomirski
On Fri, Oct 4, 2013 at 3:59 PM, Andy Lutomirski wrote: > > I'd really like a solution where there are no read or write > implementations in the entire kernel that check permissions. Failing > that, just getting it for procfs would be nice. (uid_map, etc will > probably need to be revoked on unsh

Re: [PATCH v2 2/9] procfs: add proc_allow_access() to check if file's opener may access task

2013-10-04 Thread Andy Lutomirski
On Fri, Oct 4, 2013 at 3:55 PM, Eric W. Biederman wrote: > Andy Lutomirski writes: > >> On Fri, Oct 4, 2013 at 12:41 PM, Djalal Harouni wrote: >>> On Fri, Oct 04, 2013 at 12:32:09PM -0700, Andy Lutomirski wrote: On Fri, Oct 4, 2013 at 12:27 PM, Djalal Harouni wrote: > > So sorry Andy,

Re: [usb-storage] Re: [opensuse-factory] huawei usb dongle e173 not working on tumbleweed

2013-10-04 Thread Matthew Dharm
(Ron replied separately with kernel versions and usb_modeswitch versions.) Ron, it appears that while Tumbleweed upgraded the kernel version, it didn't upgrade the usb_modeswitch version. You probably need a newer version to support that device. I just checked http://www.draisberghof.de/usb_mode

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[PATCH] powerpc: fix e500 SPE float rounding inexactness detection

2013-10-04 Thread Joseph S. Myers
From: Joseph Myers The e500 SPE floating-point emulation code for the rounding modes rounding to positive or negative infinity (which may not be implemented in hardware) tries to avoid emulating rounding if the result was inexact. However, it tests inexactness using the sticky bit with the cumul

Re: [PATCH v2 2/9] procfs: add proc_allow_access() to check if file's opener may access task

2013-10-04 Thread Eric W. Biederman
Andy Lutomirski writes: > On Fri, Oct 4, 2013 at 12:41 PM, Djalal Harouni wrote: >> On Fri, Oct 04, 2013 at 12:32:09PM -0700, Andy Lutomirski wrote: >>> On Fri, Oct 4, 2013 at 12:27 PM, Djalal Harouni wrote: >>> > So sorry Andy, I don't follow what you are describing. >>> >>> And what paramete

Re: [RFC PATCH] thermal: add generic cpu hotplug cooling device

2013-10-04 Thread Zoran Markovic
Any comments on this proposed feature and implementation? Apparently it's also useful for server systems. Thanks, Zoran On 20 September 2013 15:15, Zoran Markovic wrote: > This patch implements a generic CPU hotplug cooling device. The > implementation scales down the number of running CPUs when

[PATCH] powerpc: fix exception clearing in e500 SPE float emulation

2013-10-04 Thread Joseph S. Myers
From: Joseph Myers The e500 SPE floating-point emulation code clears existing exceptions (__FPU_FPSCR &= ~FP_EX_MASK;) before ORing in the exceptions from the emulated operation. However, these exception bits are the "sticky", cumulative exception bits, and should only be cleared by the user pro

[RFC][PATCH 3/3] vfs: Lazily remove mounts on unlinked files and directories.

2013-10-04 Thread Eric W. Biederman
With the introduction of mount namespaces and bind mounts it because possible to access files and directories that in other locations in were used as mount points. Especially with mount namespaces has become very confusing why rm -rf somedir return -EBUSY because some directory is mounted somewhe

[RFC][PATCH 2/3] vfs: Add a function to lazily unmount all mounts from any dentry.

2013-10-04 Thread Eric W. Biederman
Signed-off-by: Eric W. Biederman --- fs/mount.h |1 + fs/namespace.c | 24 2 files changed, 25 insertions(+), 0 deletions(-) diff --git a/fs/mount.h b/fs/mount.h index e4342b8dfab1..7a6a2bb3f290 100644 --- a/fs/mount.h +++ b/fs/mount.h @@ -79,6 +79,7 @@ static

[RFC][PATCH 1/3] vfs: Keep a list of mounts on a mount point

2013-10-04 Thread Eric W. Biederman
Signed-off-by: Eric W. Biederman --- fs/mount.h |2 ++ fs/namespace.c |5 + 2 files changed, 7 insertions(+), 0 deletions(-) diff --git a/fs/mount.h b/fs/mount.h index 64a858143ff9..e4342b8dfab1 100644 --- a/fs/mount.h +++ b/fs/mount.h @@ -21,6 +21,7 @@ struct mnt_pcp { struct

[RFC][PATCH 0/3] vfs: Detach mounts on unlink.

2013-10-04 Thread Eric W. Biederman
This patchset is an attempt to address two problems: 1) Not all modifications to the filesystems happen through the vfs and since the vfs can not cope with a mount point being unlinked or renamed filesystems whose modifications that do not come through the vfs are required to lie. 2) Thr

Re: [PATCH v2] usb: g_ffs: fix compilation warning

2013-10-04 Thread David Cohen
Hi Greg, On 10/04/2013 03:30 PM, David Cohen wrote: If USB_FUNCTIONFS is selected without USB_FUNCTIONFS_ETH and USB_FUNCTIONFS_RNIS, u_ether.h won't be included and then USB_ETHERNET_MODULE_PARAMAETERS macro won't be available causing the following warning compilation: drivers/usb/gadget/g_ffs

RE: [PATCH 1/1] Drivers: scsi: Derive the FLUSH_TIMEOUT from the basic I/O timeout

2013-10-04 Thread KY Srinivasan
> -Original Message- > From: James Bottomley [mailto:jbottom...@parallels.com] > Sent: Friday, October 04, 2013 3:31 PM > To: KY Srinivasan > Cc: gre...@linuxfoundation.org; linux-kernel@vger.kernel.org; > de...@linuxdriverproject.org; oher...@suse.com; h...@infradead.org; > e...@purestor

Re: [PATCH v5 4/4] ARM: at91/dt: add watchdog properties to kizbox board

2013-10-04 Thread Guenter Roeck
On Fri, Oct 04, 2013 at 09:24:15AM +0200, Boris BREZILLON wrote: > Add watchdog specific config for kizbox board. > > Signed-off-by: Boris BREZILLON Acked-by: Guenter Roeck -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kern

Re: [PATCH v5 3/4] ARM: at91/dt: add sam9 watchdog default options to SoCs

2013-10-04 Thread Guenter Roeck
On Fri, Oct 04, 2013 at 09:24:14AM +0200, Boris BREZILLON wrote: > Set default watchdog options in every SoC compatible with the sam9 watchdog. > > Signed-off-by: Boris BREZILLON Acked-by: Guenter Roeck -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a

Re: [PATCH 1/1] Drivers: scsi: Derive the FLUSH_TIMEOUT from the basic I/O timeout

2013-10-04 Thread James Bottomley
On Fri, 2013-10-04 at 22:01 +, KY Srinivasan wrote: > > > -Original Message- > > From: James Bottomley [mailto:jbottom...@parallels.com] > > Sent: Friday, October 04, 2013 2:42 PM > > To: KY Srinivasan > > Cc: gre...@linuxfoundation.org; linux-kernel@vger.kernel.org; > > de...@linuxdri

Re: [PATCH v5 1/4] watchdog: at91sam9_wdt: better watchdog support

2013-10-04 Thread Guenter Roeck
On Fri, Oct 04, 2013 at 09:24:12AM +0200, Boris BREZILLON wrote: > The at91sam9 watchdog timer can only be configured once, and the current > implementation tries to configure it in a static way: > - 2 seconds timeout > - wdt restart every 500ms > > If the timer has already been configured with di

Re: [PATCH v5 2/4] watchdog: at91sam9_wdt: update device tree doc

2013-10-04 Thread Guenter Roeck
On Fri, Oct 04, 2013 at 09:24:13AM +0200, Boris BREZILLON wrote: > Add new at91sam9 watchdog properties to the documentation. > > Signed-off-by: Boris BREZILLON Acked-by: Guenter Roeck -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord.

Re: [PATCH 6/6] x86: Allow disabling HW_BREAKPOINTS and PERF_EVENTS

2013-10-04 Thread Frederic Weisbecker
On Fri, Oct 04, 2013 at 02:39:48PM -0700, Andi Kleen wrote: > From: Andi Kleen > > As suggested by Ingo. > > Make HW_BREAKPOINTS a config option. HW_BREAKPOINTS depends > on perf. This allows disabling PERF_EVENTS for systems that > don't need it (e.g. anything not used for development) > > Dis

[PATCH v2] usb: g_ffs: fix compilation warning

2013-10-04 Thread David Cohen
If USB_FUNCTIONFS is selected without USB_FUNCTIONFS_ETH and USB_FUNCTIONFS_RNIS, u_ether.h won't be included and then USB_ETHERNET_MODULE_PARAMAETERS macro won't be available causing the following warning compilation: drivers/usb/gadget/g_ffs.c:81:1: warning: data definition has no type or storag

RE: [PATCH 1/1] Drivers: scsi: Derive the FLUSH_TIMEOUT from the basic I/O timeout

2013-10-04 Thread KY Srinivasan
> -Original Message- > From: James Bottomley [mailto:jbottom...@parallels.com] > Sent: Friday, October 04, 2013 2:42 PM > To: KY Srinivasan > Cc: gre...@linuxfoundation.org; linux-kernel@vger.kernel.org; > de...@linuxdriverproject.org; oher...@suse.com; h...@infradead.org; > e...@purestor

Re: [PATCH 1/3] thermal: bcm281xx: Add thermal driver

2013-10-04 Thread Wendy Ng
Hello Eduardo, I have rebased my work on the top of yours and tried out the new way of registering the thermal zone.The new method is certainly making things easier for me to create a new thermal zone device driver. But I have some questions and I hope to hear back from you before I uploa

Re: [PATCH v2 2/9] procfs: add proc_allow_access() to check if file's opener may access task

2013-10-04 Thread Andy Lutomirski
On Fri, Oct 4, 2013 at 12:41 PM, Djalal Harouni wrote: > On Fri, Oct 04, 2013 at 12:32:09PM -0700, Andy Lutomirski wrote: >> On Fri, Oct 4, 2013 at 12:27 PM, Djalal Harouni wrote: >> > On Fri, Oct 04, 2013 at 12:16:26PM -0700, Andy Lutomirski wrote: >> >> On Fri, Oct 4, 2013 at 12:11 PM, Djalal H

Re: [PATCH v2 6/6] Introduce Intel RAPL power capping driver

2013-10-04 Thread Joe Perches
On Fri, 2013-10-04 at 13:12 -0700, Jacob Pan wrote: > On Fri, 04 Oct 2013 11:07:45 -0700 > Joe Perches wrote: > > > On Fri, 2013-10-04 at 09:36 -0700, Srinivas Pandruvada wrote: > > > The Intel Running Average Power Limit(RAPL) technology provides > > > platform software with the ability to monit

Re: Commit 07f9b61 breaks systems that don't implement a _CBA method

2013-10-04 Thread Bjorn Helgaas
On Thu, Oct 3, 2013 at 7:18 PM, Hedi Berriche wrote: > Chaps, > > The following failure was encountered on hardware that does *not* > implement a _CBA method which is AFAICT (and confirmed to me by BIOS > chaps) optional. _CBA is definitely optional. > [1.230647] PCI: MMCONFIG for domain 000

Re: [PATCH] usb: g_ffs: fix compilation warning

2013-10-04 Thread David Cohen
On 10/04/2013 03:03 PM, David Cohen wrote: On 10/04/2013 02:51 PM, Greg KH wrote: On Fri, Oct 04, 2013 at 02:48:46PM -0700, David Cohen wrote: Due to lack of "u_ether.h" header file, g_ffs.c compiles with following warning: It does? In what tree/branch/release is this happening? This is in

Re: tty^Wrcu/perf lockdep trace.

2013-10-04 Thread Paul E. McKenney
On Fri, Oct 04, 2013 at 02:25:06PM -0700, Paul E. McKenney wrote: > On Fri, Oct 04, 2013 at 08:52:39PM +0200, Peter Zijlstra wrote: > > On Fri, Oct 04, 2013 at 10:09:54AM -0700, Paul E. McKenney wrote: > > > On Fri, Oct 04, 2013 at 06:50:44PM +0200, Peter Zijlstra wrote: > > > > On Fri, Oct 04, 201

Re: [tpmdd-devel] [PATCH 09/13] tpm: Pull everything related to sysfs into tpm-sysfs.c

2013-10-04 Thread Peter Hüwe
Am Freitag, 4. Oktober 2013, 21:17:36 schrieb Stefan Berger: > On 10/04/2013 01:08 PM, Jason Gunthorpe wrote: > > On Mon, Sep 30, 2013 at 05:09:51PM -0500, Joel Schopp wrote: > >>> So far, nobody I have talked to has offered any strong opinions on > >>> what locality should be used or how it should

Re: [PATCH] usb: g_ffs: fix compilation warning

2013-10-04 Thread David Cohen
On 10/04/2013 02:51 PM, Greg KH wrote: On Fri, Oct 04, 2013 at 02:48:46PM -0700, David Cohen wrote: Due to lack of "u_ether.h" header file, g_ffs.c compiles with following warning: It does? In what tree/branch/release is this happening? This is intended for Linus' 3.12-rc3. Haven't checked

Re: [PATCH] usb: g_ffs: fix compilation warning

2013-10-04 Thread Greg KH
On Fri, Oct 04, 2013 at 02:48:46PM -0700, David Cohen wrote: > Due to lack of "u_ether.h" header file, g_ffs.c compiles with following > warning: It does? In what tree/branch/release is this happening? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" i

[PATCH] usb: g_ffs: fix compilation warning

2013-10-04 Thread David Cohen
Due to lack of "u_ether.h" header file, g_ffs.c compiles with following warning: drivers/usb/gadget/g_ffs.c:81:1: warning: data definition has no type or storage class [enabled by default] drivers/usb/gadget/g_ffs.c:81:1: warning: type defaults to ‘int’ in declaration of ‘USB_ETHERNET_MODULE_PARAM

Re: [PATCH 1/1] Drivers: scsi: Derive the FLUSH_TIMEOUT from the basic I/O timeout

2013-10-04 Thread James Bottomley
On Fri, 2013-10-04 at 12:38 -0700, K. Y. Srinivasan wrote: > Rather than having a separate constant for specifying the timeout on FLUSH > operations, use the basic I/O timeout value that is already configurable > on a per target basis to derive the FLUSH timeout. Looking at the current > definition

[PATCH 1/6] perf, x86, amd: Move __get_ibs_caps into common amd CPU file

2013-10-04 Thread Andi Kleen
From: Andi Kleen __get_ibs_caps is used by both oprofile and perf events. This causes oprofile to be dependent on perf. __get_ibs_caps is actually only a few lines, so we can easily move that to the standard AMD CPU initialization file. It will be always compiled in this way, but it's far bette

[PATCH 4/6] trace: Make UPROBES depend on PERF_EVENTS

2013-10-04 Thread Andi Kleen
From: Andi Kleen UPROBES need the perf events code, so add a dependency from PERF_EVENTS to UPROBES. Cc: rost...@goodmis.org Signed-off-by: Andi Kleen --- kernel/trace/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 015f85a..8639819

Allow disabling perf on x86

2013-10-04 Thread Andi Kleen
This patchkit allows to disable perf events on x86. Requires various changes to avoid dependencies. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.

[PATCH 5/6] x86, kgdb: Support compiling without hardware break points

2013-10-04 Thread Andi Kleen
From: Andi Kleen Add some ifdefs to support compiling without CONFIG_HW_BREAKPOINTS. HW_BREAKPOINTS pulls in all of perf, and presumably there are some use cases where people want to debug without perf. The standard software breakpoints still work of course. Cc: jason.wes...@windriver.com Signe

[PATCH 3/6] x86, ptrace: Ifdef HW_BREAKPOINTS code in ptrace

2013-10-04 Thread Andi Kleen
From: Andi Kleen Add ifdefs on CONFIG_HW_BREAKPOINTS to the hardware break point code in x86 ptrace.c. This prepares this file for being able to disable HW_BREAKPOINTS. The only debug register that needs to be handled without break points is DR6, so do that in a simple separate function without

[PATCH 6/6] x86: Allow disabling HW_BREAKPOINTS and PERF_EVENTS

2013-10-04 Thread Andi Kleen
From: Andi Kleen As suggested by Ingo. Make HW_BREAKPOINTS a config option. HW_BREAKPOINTS depends on perf. This allows disabling PERF_EVENTS for systems that don't need it (e.g. anything not used for development) Disabling PERF_EVENTS saves over 700k of kernel text (~5% of my config) and signi

[PATCH 2/6] perf, x86: Make perf amd ibs code depend on PERF_EVENTS and SUP_AMD

2013-10-04 Thread Andi Kleen
From: Andi Kleen Now that oprofile doesn't need the AMD IBS perf code anymore, we can make that code dependent on PERF_EVENTS and AMD CPU support, instead of unconditionally compiling it in. Cc: b...@suse.de Signed-off-by: Andi Kleen --- arch/x86/kernel/cpu/Makefile | 5 - 1 file changed,

[PATCH] x86: Don't make AMD_GART depend on EXPERT and default y

2013-10-04 Thread Andi Kleen
From: Andi Kleen The AMD_GART driver was made EXPERT/EMBEDDED a long time ago to avoid unbootable 64bit systems with 32bit only devices. This was before swiotlb was there, which does the job of this fallback today. SWIOTLB is always on, so systems should always boot. The drawback is that every

Re: [PATCH RFC 00/77] Re-design MSI/MSI-X interrupts enablement pattern

2013-10-04 Thread Ben Hutchings
On Fri, 2013-10-04 at 10:29 +0200, Alexander Gordeev wrote: > On Thu, Oct 03, 2013 at 11:49:45PM +0100, Ben Hutchings wrote: > > On Wed, 2013-10-02 at 12:48 +0200, Alexander Gordeev wrote: > > > This update converts pci_enable_msix() and pci_enable_msi_block() > > > interfaces to canonical kernel f

Re: [PATCH 0/5] rcusync: validations + dtor + exclusive

2013-10-04 Thread Paul E. McKenney
On Fri, Oct 04, 2013 at 09:32:03PM +0200, Peter Zijlstra wrote: > On Fri, Oct 04, 2013 at 08:46:14PM +0200, Oleg Nesterov wrote: > > Hello. > > > > On top of Peter's "[PATCH 0/3] Optimize the cpu hotplug locking" > > series. > > > > It seems that Paul and Peter agree with 1-3, and they are simple

Re: tty^Wrcu/perf lockdep trace.

2013-10-04 Thread Paul E. McKenney
On Fri, Oct 04, 2013 at 08:52:39PM +0200, Peter Zijlstra wrote: > On Fri, Oct 04, 2013 at 10:09:54AM -0700, Paul E. McKenney wrote: > > On Fri, Oct 04, 2013 at 06:50:44PM +0200, Peter Zijlstra wrote: > > > On Fri, Oct 04, 2013 at 09:03:52AM -0700, Paul E. McKenney wrote: > > > > The problem exists,

Re: [PATCH] LSM: MntRestrict blocks mounts on symlink targets

2013-10-04 Thread Kees Cook
On Fri, Oct 4, 2013 at 9:02 AM, David Quigley wrote: > Why is this an LSM and not something further up in the VFS? Why not make a > sysctl for this and place it further up in the VFS? Has it already been > rejected from there? If so why not include it in the things covered by Yama? > From a code p

Re: [PATCH 0/5] blk-mq fixes and improvements

2013-10-04 Thread Jens Axboe
On 10/04/2013 07:49 AM, Christoph Hellwig wrote: > The first two patches make blk-mq work fine again for me in a KVM VM, > the others make sure that consumers don't have to care if the underlying queue > uses blk-mq or not and remove some code at the same time. Thanks Christoph, applied. -- Jens

Re: security: lockless stat() issues

2013-10-04 Thread Al Viro
On Fri, Oct 04, 2013 at 01:49:13PM -0700, Linus Torvalds wrote: > That would get ugly. > > However, I don't think we actually really need to do that. We had a > similar situation with d_revalidate() passing inode pointers etc > totally unnecessarily. Yes, the filesystem needs to use ACCESS_ONCE()

Conflict in merge of the the drm-intel tree

2013-10-04 Thread Mark Brown
While merging the drm-intel tree into -next there were conflicts in drivers/gpu/drm/i915/intel_dp.c between 0cc4b69960 (drm/i915: Mask LPSP to get PSR working even with Power Well in use by audio) in the drm tree and 18b5992c37 (drm/i915: Calculate PSR register offsets from base + gen) from the drm

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