The eviction consumes old generations. Given an lruvec, the eviction
scans the pages on the per-zone lists indexed by either of min_seq[2].
It first tries to select a type based on the values of min_seq[2].
When anon and file types are both available from the same generation,
it selects the one tha
In order to scan page tables, we add an infrastructure to maintain
either a system-wide mm_struct list or per-memcg mm_struct lists.
Multiple threads can concurrently work on the same mm_struct list, and
each of them will be given a different mm_struct.
This infrastructure also tracks whether an m
The aging produces young generations. Given an lruvec, the aging walks
the mm_struct list associated with this lruvec to scan page tables for
referenced pages. Upon finding one, the aging updates the generation
number of this page to max_seq. After each round of scan, the aging
increments max_seq.
For each lruvec, evictable pages are divided into multiple
generations. The youngest generation number is stored in max_seq for
both anon and file types as they are aged on an equal footing. The
oldest generation numbers are stored in min_seq[2] separately for anon
and file types as clean file page
For pages accessed multiple times via file descriptors, instead of
activating them upon the second accesses, we activate them based on
the refault rates of their tiers. Pages accessed N times via file
descriptors belong to tier order_base_2(N). Pages from tier 0, i.e.,
those read ahead, accessed on
page_memcg_rcu() warns on !rcu_read_lock_held() regardless of
CONFIG_MEMCG. The following code is legit, but it triggers the warning
when !CONFIG_MEMCG, since lock_page_memcg() and unlock_page_memcg()
are empty for this config.
memcg = lock_page_memcg(page1)
(rcu_read_lock() if CONFIG_MEMCG=
cgroup_mutex is needed to synchronize with memcg creations.
Signed-off-by: Yu Zhao
---
include/linux/cgroup.h | 15 ++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 4f2f79de083e..bd5744360cfa 100644
--- a/include/
Some architectures support the accessed bit on non-leaf PMD entries
(parents) in addition to leaf PTE entries (children) where pages are
mapped, e.g., x86_64 sets the accessed bit on a parent when using it
as part of linear-address translation [1]. Page table walkers who are
interested in the acces
activate_page() is needed to activate pages that are already on lru or
queued in lru_pvecs.lru_add. The exported function is a merger between
the existing activate_page() and __lru_cache_activate_page().
Signed-off-by: Yu Zhao
---
include/linux/swap.h | 1 +
mm/swap.c| 28 ++
Currently is_huge_zero_pmd() only exists when
CONFIG_TRANSPARENT_HUGEPAGE=y. This patch adds the function for
!CONFIG_TRANSPARENT_HUGEPAGE.
Signed-off-by: Yu Zhao
---
include/linux/huge_mm.h | 5 +
1 file changed, 5 insertions(+)
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.
Currently next_memory_node only exists when CONFIG_NUMA=y. This patch
adds the macro for !CONFIG_NUMA.
Signed-off-by: Yu Zhao
---
include/linux/nodemask.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index ac398e143c9a..89fe4e3592f9 1006
Heuristics that determine scan balance between anon and file LRUs are
rather independent. Move them into a separate function to improve
readability.
Signed-off-by: Yu Zhao
---
mm/vmscan.c | 186 +++-
1 file changed, 98 insertions(+), 88 deletions(-
What's new in v2
Special thanks to Jens Axboe for reporting a regression in buffered
I/O and helping test the fix.
This version includes the support of tiers, which represent levels of
usage from file descriptors only. Pages accessed N times via file
descriptors belong to tier ord
On Mon, Apr 12, 2021 at 01:05:09PM -0700, Kees Cook wrote:
> On Mon, Apr 12, 2021 at 10:00:16AM +0200, Peter Zijlstra wrote:
> > +struct vpr_data {
> > + int (*fn)(pte_t pte, unsigned long addr, void *data);
> > + void *data;
> > +};
>
> Eeerg. This is likely to become an attack target itself.
Hi Andrew,
On 4/12/2021 6:52 PM, Andrew Lunn wrote:
So what you are say is, you don't care if the IP is completely
different, it all goes in one driver. So lets put this driver into
nxp-tja11xx.c. And then we avoid all the naming issues.
Andrew
As this seems to be a key question, let
On Mon 12-04-21 15:49:53, ultrac...@163.com wrote:
> From: Chen Xiaoguang
>
> Check memory cgroup limit before allocating real memory. This may
> improve performance especially in slow path when memory allocation
> exceeds cgroup limitation.
I would be really curious about any actual numbers bec
Hi Daniel,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on 1678e493d530e7977cce34e59a86bb86f3c5631e]
url:
https://github.com/0day-ci/linux/commits/Daniel-Latypov/kunit-add-unit-test-for-filtering-suites-by-names/20210413-080913
base: 1678e493d530e7977cce3
On Mon, Apr 12, 2021 at 01:08:38PM -0700, Kees Cook wrote:
> On Mon, Apr 12, 2021 at 10:00:18AM +0200, Peter Zijlstra wrote:
> > @@ -1249,14 +1249,14 @@ static int check_absent_pte(pte_t *pte,
> >
> > static int check_present(unsigned long addr, unsigned long len)
> > {
> > - return apply_to_
On Tue, 13 Apr 2021, Mitali Borkar wrote:
> Declared 32 bit unsigned int as static constant inside a function
> appropriately.
I don't think that the description matches what is done. Perhaps all the
meaning is intended to be in the word "appropriately", but that is not
very clear. The messa
On Mon, Apr 12, 2021 at 06:22:42PM +0100, Valentin Schneider wrote:
> On 12/04/21 14:03, Peter Zijlstra wrote:
> > On Thu, Mar 11, 2021 at 03:13:04PM +, Valentin Schneider wrote:
> >> Peter Zijlstra writes:
> >> > @@ -7910,6 +7908,14 @@ int sched_cpu_deactivate(unsigned int cp
> >> >}
> >>
On Mon, Apr 12, 2021 at 11:45 PM Ilya Lipnitskiy
wrote:
>
> Hi Thomas,
>
> On Tue, Apr 6, 2021 at 6:18 AM Thomas Bogendoerfer
> wrote:
> >
> > On Sat, Apr 03, 2021 at 07:02:13PM -0700, Ilya Lipnitskiy wrote:
> > > Hi Mike,
> > >
> > > On Tue, Mar 16, 2021 at 11:33 PM Mike Rapoport wrote:
> > > >
On Mon, 12 Apr 2021 23:41:24 +0200
"Christian A. Ehrhardt" wrote:
> When mmaping an extra device region verify that the region index
> derived from the mmap offset is valid.
>
> Fixes: a15b1883fee1 ("vfio_pci: Allow mapping extra regions")
> Cc: sta...@vger.kernel.org
> Signed-off-by: Christian
Am Mon, 12 Apr 2021 20:34:45 +0300
schrieb Andy Shevchenko :
> On Mon, Apr 12, 2021 at 07:16:53PM +0200, Henning Schild wrote:
> > Am Mon, 12 Apr 2021 19:59:05 +0300
> > schrieb Andy Shevchenko :
> > > On Mon, Apr 12, 2021 at 06:40:01PM +0200, Henning Schild wrote:
> > > > Tan or Andy,
> > > >
Hi Thomas,
On Tue, Apr 6, 2021 at 6:18 AM Thomas Bogendoerfer
wrote:
>
> On Sat, Apr 03, 2021 at 07:02:13PM -0700, Ilya Lipnitskiy wrote:
> > Hi Mike,
> >
> > On Tue, Mar 16, 2021 at 11:33 PM Mike Rapoport wrote:
> > >
> > > Hi Ilya,
> > >
> > > On Tue, Mar 16, 2021 at 10:10:09PM -0700, Ilya Lip
On Mon 12-04-21 14:40:18, Vlastimil Babka wrote:
> On 4/12/21 2:08 PM, Mel Gorman wrote:
> > zone_pcp_reset allegedly protects against a race with drain_pages
> > using local_irq_save but this is bogus. local_irq_save only operates
> > on the local CPU. If memory hotplug is running on CPU A and dra
On Tue, Apr 13, 2021 at 3:07 AM Daniel Latypov wrote:
>
> Add basic test coverage for files that don't require any config options:
> * part of math.h (what seem to be the most commonly used macros)
> * gcd.c
> * lcm.c
> * int_sqrt.c
> * reciprocal_div.c
> (Ignored int_pow.c since it's a simple tex
On Mon 12-04-21 13:08:42, Mel Gorman wrote:
> zone_pcp_reset allegedly protects against a race with drain_pages
> using local_irq_save but this is bogus. local_irq_save only operates
> on the local CPU. If memory hotplug is running on CPU A and drain_pages
> is running on CPU B, disabling IRQs on C
Fix the following clang warning:
drivers/hwtracing/stm/policy.c:60:21: warning: unused function
'stp_policy_node_name' [-Wunused-function].
Reported-by: Abaci Robot
Signed-off-by: Jiapeng Chong
---
drivers/hwtracing/stm/policy.c | 5 -
1 file changed, 5 deletions(-)
diff --git a/drivers/h
Hi ,
> -Original Message-
> From: Amadeusz Sławiński
> Sent: 2021年4月12日 18:40
> To: Yuan, Perry; po...@protonmail.com; pierre-
> louis.boss...@linux.intel.com; oder_ch...@realtek.com; pe...@perex.cz;
> ti...@suse.com; hdego...@redhat.com; mgr...@linux.intel.com
> Cc: alsa-de...@alsa-projec
From: Vitaly Wool
Introduce XIP (eXecute In Place) support for RISC-V platforms.
It allows code to be executed directly from non-volatile storage
directly addressable by the CPU, such as QSPI NOR flash which can
be found on many RISC-V platforms. This makes way for significant
optimization of RAM
Thomas Gleixner writes:
> On Wed, Mar 31 2021 at 16:48, Christophe Leroy wrote:
>> [Sorry, resending with complete destination list, I used the wrong script on
>> the first delivery]
>>
>> This series adds support for time namespaces on powerpc.
>>
>> All timens selftests are successfull.
>
> If
On Mon, Apr 12, 2021 at 07:58:47PM -0300, Jason Gunthorpe wrote:
> On Wed, Mar 31, 2021 at 08:43:12PM +0200, Håkon Bugge wrote:
> > ib_modify_qp() is an expensive operation on some HCAs running
> > virtualized. This series removes two ib_modify_qp() calls from RDS.
> >
> > I am sending this as a v
Hi,
Best Regards,
Billy Tsai
On 2021/4/12, 8:55 PM,Uwe Kleine-Königwrote:
> Hello,
On Mon, Apr 12, 2021 at 05:54:54PM +0800, Billy Tsai wrote:
> + - Billy Tsai
> I object because the MTA at aspeedtech.com doesn't know this email
> address.
This is typo error, my email ad
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 89698becf06d341a700913c3d89ce2a914af69a2
commit: baec970aa5ba11099ad7a91773350c91fb2113f0 mips: Add N64 machine type
date: 3 months ago
config: mips-randconfig-s032-20210413 (attached as .config)
compiler:
Declared 32 bit unsigned int as static constant inside a function
appropriately.
Reported-by: kernel test robot
Signed-off-by: Mitali Borkar
---
Changes from v1:- Rectified the mistake by declaring u32 as static const
properly.
drivers/staging/media/meson/vdec/codec_h264.c | 4 ++--
1 file ch
In general, irq handler thread will be assigned a default priority which
is MAX_RT_PRIO/2, as a result, no one can preempt others.
Here is the case I found in a real project, an interrupt int_a is
coming, wakes up its handler handler_a and handler_a wakes up a
userspace RT process task_a.
However
I'm using AEP with dax_kmem drvier, and AEP is export as a NUMA node in
my system. I will move cold pages from DRAM node to AEP node with
move_pages system call. With old "rep movsq', it costs 2030ms to move
1 GB pages. With "movnti", it only cost about 890ms to move 1GB pages.
I also test move 1GB
Mirror commit aeba3731b150 ("powerpc/pci: Fix IO space breakage after
of_pci_range_to_resource() change").
Most MIPS platforms do not define PCI_IOBASE, nor implement
pci_address_to_pio(). Moreover, IO_SPACE_LIMIT is 0x for most MIPS
platforms. of_pci_range_to_resource passes the _start addres
Follow the reasoning from commit 842de40d93e0 ("PCI: add generic
pci_enable_resources()"):
The only functional difference from the MIPS version is that the
generic one uses "!r->parent" to check for resource collisions
instead of "!r->start && r->end".
That should have no effect on any pci-
pci_fixup_irqs() used to call pcibios_map_irq on every PCI device, which
for RT2880 included bus 0 slot 0. After pci_fixup_irqs() got removed,
only slots/funcs with devices attached would be called. While arguably
the right thing, that left no chance for this driver to ever initialize
slot 0, effec
Mirror pci-rt3883 fix from commit e5067c718b3a ("MIPS: pci-rt3883:
Remove odd locking in PCI config space access code"). pci-rt2880 shares
the driver layout with pci-rt3883 and the same reasons apply.
Caller (generic PCI code) already does proper locking, so no need to add
another one here. Local
On 4/12/21 11:06 PM, Mike Rapoport wrote:
> Hi Randy,
>
> On Mon, Apr 12, 2021 at 01:53:34PM -0700, Randy Dunlap wrote:
>> On 4/12/21 10:01 AM, Mike Rapoport wrote:
>>> On Mon, Apr 12, 2021 at 08:49:49AM -0700, Randy Dunlap wrote:
>>>
>>> I thought about adding some prints to see what's causing
Fixes the following compiler warning:
warning: unused variable 'flags' [-Wunused-variable]
Fixes: e5067c718b3a ("MIPS: pci-rt3883: Remove odd locking in PCI config space
access code")
Signed-off-by: Ilya Lipnitskiy
Cc: Sergey Ryazanov
Cc: triv...@kernel.org
---
arch/mips/pci/pci-rt3883.c | 4
Existing strings do not make sense: one is always NULL and the other
refers to the wrong parent node.
Signed-off-by: Ilya Lipnitskiy
---
arch/mips/pci/pci-rt3883.c | 6 ++
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
in
No drivers set the busn_resource field in the pci_controller struct.
Commit 7ee214b540d9 ("MIPS: PCI: Remove unused busn_offset") almost
removed it over 3 years ago. Remove it for good to free up memory and
eliminate messages like:
pci_bus :00: root bus resource [??? 0x flags 0x0]
Si
Remove the following pci-legacy message:
PCI host bridge /pci@44/host-bridge ranges:
MEM 0x2000..0x2fff
IO 0x0046..0x0046
It is followed shortly by the same data from pci_register_host_bridge:
PCI host bridge to bus :00
pci_bus 0
One major fix for rt2880-pci in the first patch - fixes breakage that
existed since v4.14.
Other more minor fixes, cleanups, and improvements that either free up
memory, make dmesg messages clearer, or remove redundant dmesg output.
Ilya Lipnitskiy (8):
MIPS: pci-rt2880: fix slot 0 configuratio
Dietmar Eggemann 于2021年4月12日周一 下午8:40写道：
>
> On 12/04/2021 14:20, Ruifeng Zhang wrote:
> > Valentin Schneider 于2021年4月12日周一 下午7:32写道：
> >>
> >>
> >> Hi,
> >>
> >> On 12/04/21 15:08, Ruifeng Zhang wrote:
> >>> From: Ruifeng Zhang
> >>>
> >>> The arm topology still parse from the MPIDR, but it is
Reset (aka power off) happens when the reset gpio is made active.
Change function name to ak5558_reset to match devicetree property
"reset-gpios".
Signed-off-by: Shengjiu Wang
---
sound/soc/codecs/ak5558.c | 30 ++
1 file changed, 10 insertions(+), 20 deletions(-)
di
Fix the following clang warning:
drivers/gpu/drm/i915/gvt/gtt.c:590:20: warning: unused function
'ppgtt_set_guest_root_entry' [-Wunused-function].
Reported-by: Abaci Robot
Signed-off-by: Jiapeng Chong
---
drivers/gpu/drm/i915/gvt/gtt.c | 6 --
1 file changed, 6 deletions(-)
diff --git a/d
From: Guangqing Zhu
Coccinelle noticed:
kernel/irq/manage.c:2199:8-28: ERROR: Threaded IRQ with no primary
handler requested without IRQF_ONESHOT.
Signed-off-by: Guangqing Zhu
---
kernel/irq/manage.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/irq/manage.c b/ke
On 2021/4/12 16:38, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 5.10.30 release.
There are 188 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, please
let me know.
Responses should be m
Reported-by: kernel test robot
Signed-off-by: kernel test robot
---
delayacct.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index b8d719fbfc404..2505aa9f87f61 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -32,7 +3
Hi brookxu,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v5.12-rc7 next-20210412]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--bas
allyesconfig
powerpc allmodconfig
powerpc allnoconfig
i386 randconfig-a003-20210412
i386 randconfig-a001-20210412
i386 randconfig-a006-20210412
i386 randconfig
-a005-20210413
x86_64 randconfig-a006-20210413
x86_64 randconfig-a004-20210413
i386 randconfig-a003-20210412
i386 randconfig-a001-20210412
i386 randconfig-a006-20210412
i386 randconfig-a005-20210412
i386
Valentin Schneider 于2021年4月12日周一 下午11:33写道：
>
> On 12/04/21 20:20, Ruifeng Zhang wrote:
> > There is a armv8.3 cpu which should work normally both on aarch64 and
> > aarch32.
> > The MPIDR has been written to the chip register in armv8.3 format.
> > For example,
> > core0: 8000
> > co
On Tue, Apr 13, 2021 at 7:55 AM syzbot
wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:3a229812 Merge tag 'arm-fixes-5.11-2' of git://git.kernel...
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=16b4d196d0
> kernel config:
Andi Kleen writes:
> Alex Kogan writes:
>>
>> +numa_spinlock_threshold=[NUMA, PV_OPS]
>> +Set the time threshold in milliseconds for the
>> +number of intra-node lock hand-offs before the
>> +NUMA-aware spinlock is forced
Hi Andre,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 89698becf06d341a700913c3d89ce2a914af69a2
commit: e8b6c54f6d57822e228027d41a1edb317034a08c net: xilinx: temac: Relax
Kconfig dependencies
date: 1 year, 1 mo
Hi Martin,
On 4/12/21 23:52, Martin K. Petersen wrote:
> Silencing analyzer warnings shouldn't be done at the expense of human
> readers. If it is imperative to switch to flex_array_size() to quiesce
> checker warnings, please add a comment in the code explaining that the
> size evaluates to nseg
On 2021/4/12 23:00, Eric Auger wrote:
> When reading the base address of the a REDIST region
> through KVM_VGIC_V3_ADDR_TYPE_REDIST we expect the
> redistributor region list to be populated with a single
> element.
>
> However list_first_entry() expects the list to be non empty.
Indeed, list_fir
On Sat, 2021-04-10 at 14:40 +0200, Krzysztof Kozlowski wrote:
> On 10/04/2021 11:11, Yong Wu wrote:
> > Normally, If the smi-larb HW need work, we should enable the smi-common
> > HW power and clock firstly.
> > This patch adds device-link between the smi-larb dev and the smi-common
> > dev. then I
Hi Randy,
On Mon, Apr 12, 2021 at 01:53:34PM -0700, Randy Dunlap wrote:
> On 4/12/21 10:01 AM, Mike Rapoport wrote:
> > On Mon, Apr 12, 2021 at 08:49:49AM -0700, Randy Dunlap wrote:
> >
> > I thought about adding some prints to see what's causing the hang, the
> > reservations or their absence.
Fix the following clang warning:
drivers/hwmon/nct6683.c:491:19: warning: unused function 'in_to_reg'
[-Wunused-function].
Reported-by: Abaci Robot
Signed-off-by: Jiapeng Chong
---
drivers/hwmon/nct6683.c | 11 ---
1 file changed, 11 deletions(-)
diff --git a/drivers/hwmon/nct6683.c b
Alex Kogan writes:
>
> + numa_spinlock_threshold=[NUMA, PV_OPS]
> + Set the time threshold in milliseconds for the
> + number of intra-node lock hand-offs before the
> + NUMA-aware spinlock is forced to be passed to
> +
Hello,
syzbot found the following issue on:
HEAD commit:d93a0d43 Merge tag 'block-5.12-2021-04-02' of git://git.ke..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=12d81cfcd0
kernel config: https://syzkaller.appspot.com/x/.config?x=71a75beb62b62a34
das
This patch provides the advanced drive raw data setting version
for I2C used pins on MT8195.
Signed-off-by: Zhiyong Tao
---
drivers/pinctrl/mediatek/pinctrl-mt8195.c | 22 +++
.../pinctrl/mediatek/pinctrl-mtk-common-v2.c | 14
.../pinctrl/mediatek/pinctrl-mtk-co
Hello,
syzbot found the following issue on:
HEAD commit:1678e493 Merge tag 'lto-v5.12-rc6' of git://git.kernel.org..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1565bf7cd0
kernel config: https://syzkaller.appspot.com/x/.config?x=71a75beb62b62a34
das
This commit includes pinctrl driver for mt8195.
Signed-off-by: Zhiyong Tao
---
drivers/pinctrl/mediatek/Kconfig |6 +
drivers/pinctrl/mediatek/Makefile |1 +
drivers/pinctrl/mediatek/pinctrl-mt8195.c | 828
drivers/pinctrl/mediatek/pinctrl-mtk-mt819
This patch provides rsel setting on MT8195.
Signed-off-by: Zhiyong Tao
---
drivers/pinctrl/mediatek/pinctrl-mt8195.c | 22 +++
.../pinctrl/mediatek/pinctrl-mtk-common-v2.c | 14
.../pinctrl/mediatek/pinctrl-mtk-common-v2.h | 10 +
drivers/pinctrl/mediat
1. This patch adds pinctrl file for mt8195.
2. This patch adds mt8195 compatible node in binding document.
Signed-off-by: Zhiyong Tao
---
.../bindings/pinctrl/pinctrl-mt8195.yaml | 151 +++
include/dt-bindings/pinctrl/mt8195-pinfunc.h | 962 ++
2 files changed, 1113 inserti
This series includes 4 patches:
1.add pinctrl file and inding document on mt8195.
2.add pinctrl driver on MT8195.
3.add pinctrl drive for I2C related pins on MT8195.
4.add pinctrl rsel setting on MT8195.
Changes in patch v4:
1)fix pinctrl-mt8195.yaml warning error.
2)remove pinctrl device node pat
Hello,
syzbot found the following issue on:
HEAD commit:d93a0d43 Merge tag 'block-5.12-2021-04-02' of git://git.ke..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16519431d0
kernel config: https://syzkaller.appspot.com/x/.config?x=71a75beb62b62a34
das
Hello,
syzbot found the following issue on:
HEAD commit:3a229812 Merge tag 'arm-fixes-5.11-2' of git://git.kernel...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16b4d196d0
kernel config: https://syzkaller.appspot.com/x/.config?x=f91155ccddaf919c
das
On Tue, 30 Mar 2021 05:46:01 -0700, zhouchuangao wrote:
> BUG_ON() uses unlikely in if(), which can be optimized at compile time.
Applied to 5.13/scsi-queue, thanks!
[1/1] message/fusion: Use BUG_ON instead of if condition followed by BUG.
https://git.kernel.org/mkp/scsi/c/4dec8004de29
--
On Thu, 1 Apr 2021 14:35:34 +0800, Wan Jiabing wrote:
> struct bfa_fcs_s is declared twice. One is declared
> at 50th line. Remove the duplicate.
> struct bfa_fcs_fabric_s is defined at 175th line.
> Remove unnecessary declaration.
Applied to 5.13/scsi-queue, thanks!
[1/1] scsi: bfa: Remove unne
On Wed, 31 Mar 2021 17:43:38 -0500, Gustavo A. R. Silva wrote:
> Fix the following out-of-bounds warnings by enclosing
> some structure members into new structure objects upiu_req
> and upiu_rsp:
>
> include/linux/fortify-string.h:20:29: warning: '__builtin_memcpy' offset [29,
> 48] from the obj
On Tue, 30 Mar 2021 20:59:11 +0800, Yang Yingliang wrote:
> The spinlock and list head of fnic_list is initialized statically.
> It is unnecessary to initialize by spin_lock_init() and INIT_LIST_HEAD().
Applied to 5.13/scsi-queue, thanks!
[1/1] scsi: fnic: remove unnecessary spin_lock_init() and
Hi Maintainers,
Gentle pin for this patch.
Thanks.
On Sun, 2021-03-14 at 02:00 +0800, Hsin-Hsiung Wang wrote:
> Add spmi support for MT6873/8192.
>
> Signed-off-by: Hsin-Hsiung Wang
> ---
> changes since v6:
> - remove unused spinlock.
> - remove redundant check for slave id.
> ---
> drivers/s
With the implementation of napi-tx in virtio driver, we clean tx
descriptors from rx napi handler, for the purpose of reducing tx
complete interrupts. But this introduces a race where tx complete
interrupt has been raised, but the handler finds there is no work to do
because we have done the work i
On Thu, 25 Mar 2021 20:29:54 +0800, Luo Jiaxing wrote:
> Two types of errors are detected by the checkpatch.
> 1. Alignment between switches and cases
> 2. Improper use of some spaces
>
> Here are the clean up patches.
>
> Luo Jiaxing (2):
> scsi: libsas: make switch and case at the same inden
On Thu, 18 Mar 2021 15:56:32 -0700, Jolly Shah wrote:
> When the cache_type for the scsi device is changed, the scsi layer
> issues a MODE_SELECT command. The caching mode details are communicated
> via a request buffer associated with the scsi command with data
> direction set as DMA_TO_DEVICE (s
We currently check num_free outside tx q lock
which is unsafe: new packets can arrive meanwhile
and there won't be space in the queue.
Thus a spurious queue wakeup causing overhead
and even packet drops.
Move the check under the lock to fix that.
Signed-off-by: Michael S. Tsirkin
---
drivers/ne
It's unsafe to operate a vq from multiple threads.
Unfortunately this is exactly what we do when invoking
clean tx poll from rx napi.
As a fix move everything that deals with the vq to under tx lock.
Signed-off-by: Michael S. Tsirkin
---
drivers/net/virtio_net.c | 22 +-
1 fi
There are currently two cases where we poll TX vq not in response to a
callback: start xmit and rx napi. We currently do this with callbacks
enabled which can cause extra interrupts from the card. Used not to be
a big issue as we run with interrupts disabled but that is no longer the
case, and in
virtio_disable_cb is currently a nop for split ring with event index.
This is because it used to be always called from a callback when we know
device won't trigger more events until we update the index. However,
now that we run with interrupts enabled a lot we also poll without a
callback so that
Hello,
syzbot found the following issue on:
HEAD commit:4fa56ad0 Merge tag 'for-linus' of git://git.kernel.org/pub..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17dbd09ad0
kernel config: https://syzkaller.appspot.com/x/.config?x=9320464bf47598bd
das
Hi all,
Today's linux-next merge of the kvm-arm tree got a conflict in:
arch/arm64/include/asm/assembler.h
between commits:
27248fe1abb2 ("arm64: assembler: remove conditional NEON yield macros")
13150149aa6d ("arm64: fpsimd: run kernel mode NEON with softirqs disabled")
from the arm64 t
Yu Zhao writes:
> On Fri, Mar 26, 2021 at 12:21 AM Huang, Ying wrote:
>>
>> Mel Gorman writes:
>>
>> > On Thu, Mar 25, 2021 at 12:33:45PM +0800, Huang, Ying wrote:
>> >> > I caution against this patch.
>> >> >
>> >> > It's non-deterministic for a number of reasons. As it requires NUMA
>> >> > b
On Mon, 12 Apr 2021 at 14:13, Greg Kroah-Hartman
wrote:
>
> This is the start of the stable review cycle for the 4.19.187 release.
> There are 66 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Re
On Mon, 12 Apr 2021 at 22:34, Colin Ian King wrote:
>
> On 12/04/2021 17:48, James Bottomley wrote:
> > On Mon, 2021-04-12 at 17:01 +0100, Colin King wrote:
> >> From: Colin Ian King
> >>
> >> The kzalloc call can return null with the GFP_KERNEL flag so
> >> add a null check and exit via a new er
On Mon, Apr 12, 2021 at 03:59:04PM +0200, Niklas Schnelle wrote:
> Hi Narendra, Hi All,
>
> According to Documentation/ABI/testing/sysfs-bus-pci you are responsible
> for the index device attribute that is used by systemd to create network
> interface names.
>
> Now we would like to reuse this at
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].
Refacto
And more importantly please test with a file system that uses the
iomap direct I/O code (btrfs, gfs2, ext4, xfs, zonefs) as we should
never just work aroudn a legacy codebase that should go away in the
block layer.
There are cases that tsc clocksources are wrongly judged as unstable by
clocksource watchdogs like hpet, acpi_pm or 'refined-jiffies'. While
there is hardly a general reliable way to check the validity of a
watchdog, and to protect the innocent tsc, Thomas Gleixner proposed [1]:
"I'm inclined to l
Normally the tsc_sync will get checked every time system enters idle state,
but Thomas Gleixner mentioned there is still a caveat that a system won't
enter idle [1], either because it's too busy or configured purposely to not
enter idle. Setup a periodic timer to make sure the check is always on.
On Mon, 12 Apr 2021 at 21:31, Colin King wrote:
>
> From: Colin Ian King
>
> The kzalloc call can return null with the GFP_KERNEL flag so
> add a null check and exit via a new error exit label. Use the
> same exit error label for another error path too.
>
> Addresses-Coverity: ("Dereference null
Tyrel,
> This fixes an issue hitting the BUG_ON in ibmvfc_do_work. When going
> through a host action of IBMVFC_HOST_ACTION_RESET, we change the
> action to IBMVFC_HOST_ACTION_TGT_DEL, then drop the host lock, and
> reset the CRQ, which changes the host state to IBMVFC_NO_CRQ.
[...]
Applied to
Previously, we just allocated two shm areas: area_src and area_dst. With
this commit, change this so we also allocate area_src_alias, and
area_dst_alias.
area_*_alias and area_* (respectively) point to the same underlying
physical pages, but are different VMAs. In a future commit in this
series, w
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