On Wed, Jul 6, 2016 at 8:07 PM, Tai Nguyen wrote:
> Signed-off-by: Tai Nguyen
> ---
> Documentation/perf/xgene-pmu.txt | 48 ++
> drivers/perf/Kconfig |7 +
> drivers/perf/Makefile|1 +
> drivers/perf/xgene_pmu.c | 1398
> +++
This patch series fixes comment inconsistency and supplies to decide
to swapin looking the amount of young pages.
Changes in v2:
- Don't change thp design, notice young pages
if needs to swapin
- Add comment line fixing patch
Changes in v3:
- Remove revert patch (allocstall), the patch auto
After fixing swapin issues, comment lines stayed as in old version.
This patch updates the comments.
Signed-off-by: Ebru Akagunduz
Cc: Hillf Danton
---
Changes in v2:
- Newly created in this version.
Changes in v3:
- Replace Reported-by with Cc (Hillf Danton)
- Remove RFC tag (Hillf Danton)
To detect whether khugepaged swapin worthwhile, this patch checks
the amount of young pages. There should be at least half of
HPAGE_PMD_NR to swapin.
Signed-off-by: Ebru Akagunduz
Suggested-by: Minchan Kim
---
Changes in v2:
- Don't change thp design, only notice amount of young
pages, if kh
In practice, devices sometimes return frames larger than current buffer
size, leading to failure in solo_send_desc().
It is not clear which minimal increase in buffer size would be enough,
so this patch doubles it, this should be safely assumed as sufficient.
Signed-off-by: Andrey Utkin
---
driv
On Saturday, July 09, 2016 11:44:47 AM Hanjun Guo wrote:
> On 2016/7/8 21:22, Lorenzo Pieralisi wrote:
> > On Thu, Jul 07, 2016 at 03:58:04PM +0200, Rafael J. Wysocki wrote:
> >
> > [...]
> >
> >>> Anyway let's avoid these petty arguments, I agree there must be some
> >>> sort of ARM64 ACPI maintai
On Fri, Jul 08, 2016 at 10:36:39AM -0700, Florian Fainelli wrote:
> Change the BUG_ON() condition in brcmnand_send_cmd() which checks for
> the interrupt status "controller ready" bit to a WARN_ON.
>
> There is no good reason to kill the system when this condition occur
> because we could have sys
From: Rafael J. Wysocki
On Intel hardware, native_play_dead() uses mwait_play_dead() by
default and only falls back to the other methods if that fails.
That also happens during resume from hibernation, when the restore
(boot) kernel runs disable_nonboot_cpus() to take all of the CPUs
except for t
Hi,
On Tue, May 31, 2016 at 07:41:23AM +0200, Julia Lawall wrote:
> On Mon, 30 May 2016, Ezequiel Garcia wrote:
> > On 28 May 2016 at 13:41, Amitoj Kaur Chawla wrote:
> > > Replace if condition and BUG() with a BUG_ON having the conditional
> > > expression of the if statement as argument.
[...]
On Fri, Apr 08, 2016 at 08:35:43PM +0200, Denys Vlasenko wrote:
> This function compiles to 2554 bytes of machine code.
> In C, the function is almost 200 lines long.
>
> It has only one callsite, but forced inlining that much code
> makes gcc generate significantly worse code. Let gcc itself deci
In preparation for triggering flushes of a DIMM's writes-posted-queue
(WPQ) via the pmem driver move mapping of flush hint addresses to the
region driver. Since this uses devm_nvdimm_memremap() the flush
addresses will remain mapped while any region to which the dimm belongs
is active.
We need to
Changes since v1 [1]:
1/ Move flush address data from nvdimm_drvdata to nd_region_data (Greg,
Toshi)
2/ Add more detail to cover letter and patch descriptions (Linda, Jeff)
3/ Account for s/REQ_FLUSH/REQ_PREFLUSH/ rename pending in -next.
4/ Add a directed flush at pmem ->remove() and ->shut
nsio_rw_bytes() is used to write info block metadata to the namespace,
so it should trigger a flush after every write. Replace wmb_pmem() with
nvdimm_flush() in this path.
Cc: Ross Zwisler
Signed-off-by: Dan Williams
---
drivers/nvdimm/claim.c |2 +-
1 file changed, 1 insertion(+), 1 delet
The pcommit instruction is being deprecated in favor of either ADR
(asynchronous DRAM refresh: flush-on-power-fail) at the platform level, or
posted-write-queue flush addresses as defined by the ACPI 6.x NFIT (NVDIMM
Firmware Interface Table).
Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: "H. Peter An
The __pmem address space was meant to annotate codepaths that touch
persistent memory and need to coordinate a call to wmb_pmem(). Now that
wmb_pmem() is gone, there is little need to keep this annotation.
Cc: Christoph Hellwig
Cc: Ross Zwisler
Signed-off-by: Dan Williams
---
Documentation/fi
All users have been replaced with flushing in the pmem driver.
Cc: Ross Zwisler
Signed-off-by: Dan Williams
---
arch/x86/include/asm/pmem.h | 36 ++---
include/linux/pmem.h| 47 ---
2 files changed, 6 insertions(+),
nvdimm_flush() is a replacement for the x86 'pcommit' instruction. It is
an optional write flushing mechanism that an nvdimm bus can provide for
the pmem driver to consume. In the case of the NFIT nvdimm-bus-provider
nvdimm_flush() is implemented as a series of flush-hint-address [1]
writes to ea
This reverts commit 8b3e34e46aca9b6d349b331cd9cf71ccbdc91b2e.
Given the deprecation of the pcommit instruction, revert its usage as a
vm exit source in kvm.
Cc: Xiao Guangrong
Cc: Paolo Bonzini
Cc: Ross Zwisler
Signed-off-by: Dan Williams
---
arch/x86/include/asm/vmx.h |1 -
arch/x8
nd_region device driver data will be used in the namespace i/o path.
Re-order nd_region_remove() to ensure this data stays live across
namespace device removal
Signed-off-by: Dan Williams
---
drivers/nvdimm/region.c |3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers
Commit writes to media on system shutdown or pmem driver unload.
Signed-off-by: Dan Williams
---
drivers/nvdimm/bus.c | 16
drivers/nvdimm/pmem.c |8
include/linux/nd.h|1 +
3 files changed, 25 insertions(+)
diff --git a/drivers/nvdimm/bus.c b/drivers/nv
Given that nvdimm_flush() has higher overhead than wmb_pmem() (pointer
chasing through nd_region), and that we otherwise assume a platform has
ADR capability when flush hints are not present, move nvdimm_flush() to
REQ_FLUSH context.
Cc: Ross Zwisler
Signed-off-by: Dan Williams
---
drivers/nvdi
Flushing posted-write queues is now deferred to REQ_FLUSH context, or
otherwise handled by an ADR event at the platform level.
Cc: Ross Zwisler
Signed-off-by: Dan Williams
---
fs/dax.c |7 +--
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/fs/dax.c b/fs/dax.c
index 761495b
Sample nfit data to test the kernel's handling of the multiple
flush-hint case.
Signed-off-by: Dan Williams
---
tools/testing/nvdimm/test/nfit.c | 55 +++---
1 file changed, 33 insertions(+), 22 deletions(-)
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools
Now that all shared mappings are handled by devm_nvdimm_memremap() we no
longer need nfit_spa_map() nor do we need to trigger a callback to the
bus provider at region disable time.
Signed-off-by: Dan Williams
---
drivers/acpi/nfit.c | 146 --
dri
When the NFIT provides multiple flush hint addresses per-dimm it is
expressing that the platform is capable of processing multiple flush
requests in parallel. There is some fixed cost per flush request, let
the cost be shared in parallel on multiple cpus.
Since there may not be enough flush hint
We were needlessly converting nfit_mem_init() errors to -ENOMEM.
Signed-off-by: Dan Williams
---
drivers/acpi/nfit.c |5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index d79837b9d07e..f8c1a850effc 100644
--- a/drivers/acpi/nf
Before enabling use of flush hints for pmem regions, we need to make
sure they are always associated. Move the initialization of nfit_flush
out of the block-window specific init path to the general init path.
Cc: Ross Zwisler
Signed-off-by: Dan Williams
---
drivers/acpi/nfit.c | 17 -
In preparation for generically mapping flush hint addresses for both the
BLK and PMEM use case, provide a generic / reference counted mapping
api. Given the fact that a dimm may belong to multiple regions (PMEM
and BLK), the flush hint addresses need to be held valid as long as any
region associat
On Mon, Jul 04, 2016 at 11:35:28AM +0200, Alexander Gordeev wrote:
> > mq_map is initialized to zero already, so we don't really need the
> > assignment for queue 0. The reason why this check exists is because
> > we start with queue = -1 and we never want to assignment -1 to mq_map.
>
> Would th
On Sat, 2016-07-09 at 02:45 +0200, Rafael J. Wysocki wrote:
> On Friday, July 08, 2016 12:39:07 PM Srinivas Pandruvada wrote:
> > On Fri, 2016-07-08 at 20:42 +0200, Jan Kiszka wrote:
> > > If MSR_CONFIG_TDP_CONTROL is locked, we currently try to address
> > > some
> > > MSR 0x8648 or so. Mask o
On Wed, Jul 06, 2016 at 10:05:45AM +0200, Alexander Gordeev wrote:
> > + pci_enable_msi, pci_enable_msi_range, pci_enable_msi_exact,
> > pci_disable_msi,
> > + pci_msi_vec_count, pci_enable_msix_range, pci_enable_msix_exact,
> > + pci_disable_msix, pci_msix_vec_count
>
> Description of these func
On Thu, Jul 07, 2016 at 01:05:01PM +0200, Alexander Gordeev wrote:
> irq_create_affinity_mask() bails out with no affinity in case of single
> vector, but alloc_descs() (see below (*)) assigns the whole affinity
> mask. It should be consistent instead.
I don't understand the comment. If we only h
On Thu, Jul 07, 2016 at 09:30:19PM +0200, Alexander Gordeev wrote:
> On Mon, Jul 04, 2016 at 05:39:33PM +0900, Christoph Hellwig wrote:
> > @@ -1575,6 +1546,7 @@ static int nvme_dev_add(struct nvme_dev *dev)
> > dev->tagset.cmd_size = nvme_cmd_size(dev);
> > dev->tagset.flag
On 9 July 2016 at 20:13, Chris Metcalf wrote:
> On 7/8/2016 6:43 PM, Markus Mayer wrote:
>>
>> This series introduces a family of generic string case conversion
>> functions. This kind of functionality is needed in several places in
>> the kernel. Right now, everybody seems to be implementing thei
Hello!
So I ran a quick benchmark which showed stair-step results. I immediately
thought "Ah, this is due to CPU 0 and 1, 2 and 3, 4 and 5, and 6 and 7
being threads in a core." Then I thought "Wait, this is an x86!"
Then I dumped out cpu*/topology/thread_siblings_list, getting the following:
Hi,
[auto build test ERROR on linux-nvdimm/libnvdimm-for-next]
[also build test ERROR on next-20160708]
[cannot apply to v4.7-rc6]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Dan-Williams/rep
On 7/8/2016 6:43 PM, Markus Mayer wrote:
This series introduces a family of generic string case conversion
functions. This kind of functionality is needed in several places in
the kernel. Right now, everybody seems to be implementing their own
copy of this functionality.
Based on the discussion
On Sat, Jul 9, 2016 at 9:47 PM, kbuild test robot wrote:
> Hi,
>
> [auto build test ERROR on linux-nvdimm/libnvdimm-for-next]
> [also build test ERROR on next-20160708]
> [cannot apply to v4.7-rc6]
> [if your patch is applied to the wrong git tree, please drop us a note to
> help improve the syst
On 10 July 2016 06:26:39 CEST, "Paul E. McKenney"
wrote:
>Hello!
>
>So I ran a quick benchmark which showed stair-step results. I
>immediately
>thought "Ah, this is due to CPU 0 and 1, 2 and 3, 4 and 5, and 6 and 7
>being threads in a core." Then I thought "Wait, this is an x86!"
>Then I dump
On Tue, 5 Jul 2016 14:55:09 -0300
Mauro Carvalho Chehab wrote:
> I hope you don't mind. I'm merging those three patches on my tree
> (for now, they're on an experimental tree that I can easily rebase, if
> needed). If OK for you, my plan is to merge it on a separate branch,
> together with the ot
Hi,
[auto build test ERROR on linux-nvdimm/libnvdimm-for-next]
[also build test ERROR on v4.7-rc6 next-20160708]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Dan-Williams/replace-pcommit-with-
On Fri, Jul 08, 2016 at 10:13:08PM -0500, Eric W. Biederman wrote:
> "W. Trevor King" writes:
>
> > On Thu, Jul 07, 2016 at 08:01:52AM -0700, James Bottomley wrote:
> >> In theory, we could get nsfs to show this information as an option
> >> (just add a show_options entry to the superblock ops),
On Sat, Jul 9, 2016 at 10:36 AM, Brooks Moses wrote:
> I've been attempting to qualify the Linux 4.5.2 user-space headers for
> a toolchain release, and ran into what looks like a missing include
> file in include/uapi/linux/errqueue.h. In particular,
> https://github.com/torvalds/linux/commit/f2
Sunrise Point PCH with SPS Firmware doesn't expose working
MEI interface, we need to quirk it out.
Cc: #4.4+
Signed-off-by: Tomas Winkler
---
drivers/misc/mei/pci-me.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index
On Sat, Jul 09, 2016 at 10:56:55AM -0700, Joe Perches wrote:
> defconfigs both with and without CONFIG_PRINTK build
> properly with the proposed change to this specific patch.
Did you try latest tip/master?
> Borislav, your delightful personality always impresses.
> Never change.
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