Modify pps generator driver to use the new parallel port device model.
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Modify pps client driver to use the new parallel port device model.
In that process, added an index to mention the device number when we
have more than one parallel port.
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
WCH CH382L is a PCI-E adapter with 1 parallel port. It is similair to CH382
but serial ports are not soldered on board. Detected as
Serial controller: Device 1c00:3050 (rev 10) (prog-if 05 [16850])
Signed-off-by: Alexander Gerasiov <gq@redlab-i.ru>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If device_register() returned an error! Always use put_device()
to give up the reference initialized in device_register().
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The refcount.c file missed the mass-addition of the SPDX lines.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The LKDTM modules keep expanding, and it's getting weird to have each file
get a prefix. Instead, move to a subdirectory for cleaner handling.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use sysfs to allow supporting sub-channels. The userspace application
makes request to host to create sub-channels and the UIO kernel
driver populates the sysfs per-channel directory with a binary
attribute file that can be used to read/write ring.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hyper-V balloon driver makes non-trivial calculations to convert Linux's
representation of free/used memory to what Hyper-V host expects to see. Add
a tracepoint to see what's being sent and where the data comes from.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Our num_pages_onlined accounting is buggy:
1) In case we're offlining a memory block which was present at boot (e.g.
when there was no hotplug at all) we subtract 32k from 0 and as
num_pages_onlined is unsigned get a very big positive number.
2) Commit 6df8d9aaf3 ("Drivers: hv: balloon: Correctly update onlined
page count") made num_pages_onlined counter accurate on onlining but
totally incorrect on offlining for partly populated regions: no matter
how many pages were onlined and what was actually added to
num_pages_onlined counter we always subtract the full region (32k) so
again, num_pages_onlined can wrap around zero. By onlining/offlining
the same partly populated region multiple times we can make the
situation worse.
Solve these issues by doing accurate accounting on offlining: walk HAS
list, check for covered range and gaps.
Fixes: 6df8d9aaf3 ("Drivers: hv: balloon: Correctly update onlined page count")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Instead of doing pfn_to_page() and continuosly casting page to unsigned
long just cache the pfn of the page with page_to_pfn().
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We have a mix of different ideas of which loglevel should be used. Unify
on the following:
- pr_info() for normal operation
- pr_warn() for 'strange' host behavior
- pr_err() for all errors.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The 2016 version of Hyper-V offers the option to operate the guest VM
per-vcpu stimer's in Direct Mode, which means the timer interupts on its
own vector rather than queueing a VMbus message. Direct Mode reduces
timer processing overhead in both the hypervisor and the guest, and
avoids having timer interrupts pollute the VMbus interrupt stream for
the synthetic NIC and storage. This patch enables Direct Mode by
default on stimer0 when running on a version of Hyper-V that supports
it.
In prep for coming support of Hyper-V on ARM64, the arch independent
portion of the code contains calls to routines that will be populated
on ARM64 but are not needed and do nothing on x86.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The comments doesn't match what the current code does, also have a
typo. This patch corrects them.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The usage of strchr requires inclusion of string.h.
Fixes: 0c38cda64a ("tools: hv: remove unnecessary header files and netlink related code")
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the below warnings with new glibc and gcc:
hv_vss_daemon.c💯13: warning: In the GNU C Library, "major" is defined
by <sys/sysmacros.h>. For historical compatibility, it is currently
defined by <sys/types.h> as well, but we plan to remove this soon.
To use "major", include <sys/sysmacros.h> directly.
hv_fcopy_daemon.c:42:2: note: 'snprintf' output between 2 and 1040
bytes into a destination of size 260
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Just a trivial tyop fix.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The kzalloc function is called with GFP_ATOMIC.
But according to driver call graph, it is not in atomic context,
namely no spinlock is held nor in an interrupt handler.
This GFP_ATOMIC is unnecessary, and replace with GFP_KERNEL.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On Hyper-V the VF NIC has the same MAC as the related synthetic NIC.
VF NIC can work under the synthetic NIC transparently, without its
own IP address. The existing KVP daemon only gets IP from the first
NIC matching a MAC address, and may not be able to find the IP in
this case.
This patch fixes the problem by searching the NIC matching the MAC,
and having an IP address. So, the IP address will be found and
reported to the host successfully.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull x86 fixes from Thomas Gleixner:
"A small set of fixes for x86:
- Add missing instruction suffixes to assembly code so it can be
compiled by newer GAS versions without warnings.
- Switch refcount WARN exceptions to UD2 as we did in general
- Make the reboot on Intel Edison platforms work
- A small documentation update so text and sample command match"
* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation, x86, resctrl: Make text and sample command match
x86/platform/intel-mid: Handle Intel Edison reboot correctly
x86/asm: Add instruction suffixes to bitops
x86/entry/64: Add instruction suffix
x86/refcounts: Switch to UD2 for exceptions
Pull x86/pti fixes from Thomas Gleixner:
"Three fixes related to melted spectrum:
- Sync the cpu_entry_area page table to initial_page_table on 32 bit.
Otherwise suspend/resume fails because resume uses
initial_page_table and triggers a triple fault when accessing the
cpu entry area.
- Zero the SPEC_CTL MRS on XEN before suspend to address a
shortcoming in the hypervisor.
- Fix another switch table detection issue in objtool"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu_entry_area: Sync cpu_entry_area to initial_page_table
objtool: Fix another switch table detection issue
x86/xen: Zero MSR_IA32_SPEC_CTRL before suspend
Pull timer fixes from Thomas Gleixner:
"A small set of fixes from the timer departement:
- Add a missing timer wheel clock forward when migrating timers off a
unplugged CPU to prevent operating on a stale clock base and
missing timer deadlines.
- Use the proper shift count to extract data from a register value to
prevent evaluating unrelated bits
- Make the error return check in the FSL timer driver work correctly.
Checking an unsigned variable for less than zero does not really
work well.
- Clarify the confusing comments in the ARC timer code"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers: Forward timer base before migrating timers
clocksource/drivers/arc_timer: Update some comments
clocksource/drivers/mips-gic-timer: Use correct shift count to extract data
clocksource/drivers/fsl_ftm_timer: Fix error return checking
Pull irq fixlet from Thomas Gleixner:
"Just a documentation update for the missing device tree property of
the R-Car M3N interrupt controller"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
dt-bindings/irqchip/renesas-irqc: Document R-Car M3-N support
-----BEGIN PGP SIGNATURE-----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=bF96
-----END PGP SIGNATURE-----
Merge tag 'for-4.16-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- when NR_CPUS is large, a SRCU structure can significantly inflate
size of the main filesystem structure that would not be possible to
allocate by kmalloc, so the kvalloc fallback is used
- improved error handling
- fix endiannes when printing some filesystem attributes via sysfs,
this is could happen when a filesystem is moved between different
endianity hosts
- send fixes: the NO_HOLE mode should not send a write operation for a
file hole
- fix log replay for for special files followed by file hardlinks
- fix log replay failure after unlink and link combination
- fix max chunk size calculation for DUP allocation
* tag 'for-4.16-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Btrfs: fix log replay failure after unlink and link combination
Btrfs: fix log replay failure after linking special file and fsync
Btrfs: send, fix issuing write op when processing hole in no data mode
btrfs: use proper endianness accessors for super_copy
btrfs: alloc_chunk: fix DUP stripe size handling
btrfs: Handle btrfs_set_extent_delalloc failure in relocate_file_extent_cluster
btrfs: handle failure of add_pending_csums
btrfs: use kvzalloc to allocate btrfs_fs_info
Pull i2c fixes from Wolfram Sang:
"A driver fix and a documentation fix (which makes dependency handling
for the next cycle easier)"
* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: octeon: Prevent error message on bus error
dt-bindings: at24: sort manufacturers alphabetically
Pull libnvdimm fixes from Dan Williams:
"A 4.16 regression fix, three fixes for -stable, and a cleanup fix:
- During the merge window support for the new ACPI NVDIMM Platform
Capabilities structure disabled support for "deep flush", a
force-unit- access like mechanism for persistent memory. Restore
that mechanism.
- VFIO like RDMA is yet one more memory registration / pinning
interface that is incompatible with Filesystem-DAX. Disable long
term pins of Filesystem-DAX mappings via VFIO.
- The Filesystem-DAX detection to prevent long terms pins mistakenly
also disabled Device-DAX pins which are not subject to the same
block- map collision concerns.
- Similar to the setup path, softlockup warnings can trigger in the
shutdown path for large persistent memory namespaces. Teach
for_each_device_pfn() to perform cond_resched() in all cases.
- Boaz noticed that the might_sleep() in dax_direct_access() is stale
as of the v4.15 kernel.
These have received a build success notification from the 0day robot,
and the longterm pin fixes have appeared in -next. However, I recently
rebased the tree to remove some other fixes that need to be reworked
after review feedback.
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
memremap: fix softlockup reports at teardown
libnvdimm: re-enable deep flush for pmem devices via fsync()
vfio: disable filesystem-dax page pinning
dax: fix vma_is_fsdax() helper
dax: ->direct_access does not sleep anymore
- suppress sparse warnings about unknown attributes
- fix typos and stale comments
- fix build error of arch/sh
- fix wrong use of ld-option vs cc-ldoption
- remove redundant GCC_PLUGINS_CFLAGS assignment
- fix another memory leak of Kconfig
- fix line number in error messages of Kconfig
- do not write confusing CONFIG_DEFCONFIG_LIST out to .config
- add xstrdup() to Kconfig to handle memory shortage errors
- show also a Debian package name if ncurses is missing
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=sr4l
-----END PGP SIGNATURE-----
Merge tag 'kbuild-fixes-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- suppress sparse warnings about unknown attributes
- fix typos and stale comments
- fix build error of arch/sh
- fix wrong use of ld-option vs cc-ldoption
- remove redundant GCC_PLUGINS_CFLAGS assignment
- fix another memory leak of Kconfig
- fix line number in error messages of Kconfig
- do not write confusing CONFIG_DEFCONFIG_LIST out to .config
- add xstrdup() to Kconfig to handle memory shortage errors
- show also a Debian package name if ncurses is missing
* tag 'kbuild-fixes-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
MAINTAINERS: take over Kconfig maintainership
kconfig: fix line number in recursive inclusion error message
Coccinelle: memdup: Fix typo in warning messages
kconfig: Update ncurses package names for menuconfig
kbuild/kallsyms: trivial typo fix
kbuild: test --build-id linker flag by ld-option instead of cc-ldoption
kbuild: drop superfluous GCC_PLUGINS_CFLAGS assignment
kconfig: Don't leak choice names during parsing
sh: fix build error for empty CONFIG_BUILTIN_DTB_SOURCE
kconfig: set SYMBOL_AUTO to the symbol marked with defconfig_list
kconfig: add xstrdup() helper
kbuild: disable sparse warnings about unknown attributes
Makefile: Fix lying comment re. silentoldconfig
-----BEGIN PGP SIGNATURE-----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=ypdv
-----END PGP SIGNATURE-----
Merge tag 'media/v4.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- some build fixes with randconfigs
- an m88ds3103 fix to prevent an OOPS if the chip doesn't provide the
right version during probe (with can happen if the hardware hangs)
- a potential out of array bounds reference in tvp5150
- some fixes and improvements in the DVB memory mapped API (added for
kernel 4.16)
* tag 'media/v4.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: vb2: Makefile: place vb2-trace together with vb2-core
media: Don't let tvp5150_get_vbi() go out of vbi_ram_default array
media: dvb: update buffer mmaped flags and frame counter
media: dvb: add continuity error indicators for memory mapped buffers
media: dmxdev: Fix the logic that enables DMA mmap support
media: dmxdev: fix error code for invalid ioctls
media: m88ds3103: don't call a non-initalized function
media: au0828: add VIDEO_V4L2 dependency
media: dvb: fix DVB_MMAP dependency
media: dvb: fix DVB_MMAP symbol name
media: videobuf2: fix build issues with vb2-trace
media: videobuf2: Add VIDEOBUF2_V4L2 Kconfig option for VB2 V4L2 part
x86:
- fix NULL dereference when using userspace lapic
- optimize spectre v1 mitigations by allowing guests to use LFENCE
- make microcode revision configurable to prevent guests from
unnecessarily blacklisting spectre v2 mitigation features
-----BEGIN PGP SIGNATURE-----
iQEcBAABCAAGBQJambvzAAoJEED/6hsPKofo9HwH/2il8xNSLIYf9pJtxZo/puyQ
ZSwByGdeLKBZ1GP1dhdZ8kMk3eBoci0a/sQJmhDiEG6GDf1Mrgri/xj3p60sWwXT
iReG+ZhBKg4QMj/IgOJQrh+53JT73QQP14wIhzc/DSi0Fo0ziqDA/lINxqMKc7oF
b5qratjsb4xF1db4d1g8Ii1VRk64UoBEVpEoP37OOyAu1rgXgDr+9C832KkP0rb+
pVYT8hLFiaYiwVN+WN52/NrIkqBlMvMp3ouRtMAajCQ9OznnraDJE6eTkPGDSDBM
RizSuQbev5R7pcmzCAP9/XKfTbeSUZQei2ZFXQXAOvIXMrQd/ITjbPvnObsceSE=
=wtQd
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"x86:
- fix NULL dereference when using userspace lapic
- optimize spectre v1 mitigations by allowing guests to use LFENCE
- make microcode revision configurable to prevent guests from
unnecessarily blacklisting spectre v2 mitigation feature"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: fix vcpu initialization with userspace lapic
KVM: X86: Allow userspace to define the microcode version
KVM: X86: Introduce kvm_get_msr_feature()
KVM: SVM: Add MSR-based feature support for serializing LFENCE
KVM: x86: Add a framework for supporting MSR-based features
The cond_resched() currently in the setup path needs to be duplicated in
the teardown path. Rather than require each instance of
for_each_device_pfn() to open code the same sequence, embed it in the
helper.
Link: https://github.com/intel/ixpdimm_sw/issues/11
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org>
Fixes: 7138970383 ("mm, zone_device: Replace {get, put}_zone_device_page()...")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Re-enable deep flush so that users always have a way to be sure that a
write makes it all the way out to media. Writes from the PMEM driver
always arrive at the NVDIMM since movnt is used to bypass the cache, and
the driver relies on the ADR (Asynchronous DRAM Refresh) mechanism to
flush write buffers on power failure. The Deep Flush mechanism is there
to explicitly write buffers to protect against (rare) ADR failure. This
change prevents a regression in deep flush behavior so that applications
can continue to depend on fsync() as a mechanism to trigger deep flush
in the filesystem-DAX case.
Fixes: 06e8ccdab1 ("acpi: nfit: Add support for detect platform CPU cache...")
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
I have recently picked up Kconfig patches to my tree without any
declaration. Making it official now.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Filesystem-DAX is incompatible with 'longterm' page pinning. Without
page cache indirection a DAX mapping maps filesystem blocks directly.
This means that the filesystem must not modify a file's block map while
any page in a mapping is pinned. In order to prevent the situation of
userspace holding of filesystem operations indefinitely, disallow
'longterm' Filesystem-DAX mappings.
RDMA has the same conflict and the plan there is to add a 'with lease'
mechanism to allow the kernel to notify userspace that the mapping is
being torn down for block-map maintenance. Perhaps something similar can
be put in place for vfio.
Note that xfs and ext4 still report:
"DAX enabled. Warning: EXPERIMENTAL, use at your own risk"
...at mount time, and resolving the dax-dma-vs-truncate problem is one
of the last hurdles to remove that designation.
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: kvm@vger.kernel.org
Cc: <stable@vger.kernel.org>
Reported-by: Haozhong Zhang <haozhong.zhang@intel.com>
Tested-by: Haozhong Zhang <haozhong.zhang@intel.com>
Fixes: d475c6346a ("dax,ext2: replace XIP read and write with DAX I/O")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
-----BEGIN PGP SIGNATURE-----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=0inR
-----END PGP SIGNATURE-----
Merge tag 'pci-v4.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
- Update pci.ids location (documentation only) (Randy Dunlap)
- Fix a crash when BIOS didn't assign a BAR and we try to enlarge it
(Christian König)
* tag 'pci-v4.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Allow release of resources that were never assigned
PCI: Update location of pci.ids file
Pull parisc fixes from Helge Deller:
- a patch to change the ordering of cache and TLB flushes to hopefully
fix the random segfaults we very rarely face (by Dave Anglin).
- a patch to hide the virtual kernel memory layout due to security
reasons.
- two small patches to make the kernel run more smoothly under qemu.
* 'parisc-4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Reduce irq overhead when run in qemu
parisc: Use cr16 interval timers unconditionally on qemu
parisc: Check if secondary CPUs want own PDC calls
parisc: Hide virtual kernel memory layout
parisc: Fix ordering of cache and TLB flushes
delayed and three error path memory leak fixups from Chengguang.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQEcBAABCAAGBQJamV3qAAoJEEp/3jgCEfOLv6kIAI0RXShR20dz9M3GnL2bDws7
KFkC/aNwbviXMAih3q7Q7ZiwXv6BI/uUK0YIYG/tWZoNHucYGS8ZOFDikdiIMcJR
2VP8Yas1/NvnLlh0ut45s2imvbXinkHcjWOLqgJJmJ2cEP9Ar/mbwz//TgfVMdNm
TSHEm2LPRge9jK3Ab/ZiatExGH6dx5hRJvssSauF+f2iN+q4nKj2aBqle+FKaNWT
Iv0ONi2f7aXnaXRvum4Y1gnKWXzKSFd8Y2Cr5R3tfTrKBv8nmQz54eRsMnnuxK/7
uV6Ujch4LUXBI1etXLqTwRdZQIcw3Li5PYxGrO8fl8mQfJau9yv5REw/rbgB5FU=
=f8gA
-----END PGP SIGNATURE-----
Merge tag 'ceph-for-4.16-rc4' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"A cap handling fix from Zhi that ensures that metadata writeback isn't
delayed and three error path memory leak fixups from Chengguang"
* tag 'ceph-for-4.16-rc4' of git://github.com/ceph/ceph-client:
ceph: fix potential memory leak in init_caches()
ceph: fix dentry leak when failing to init debugfs
libceph, ceph: avoid memory leak when specifying same option several times
ceph: flush dirty caps of unlinked inode ASAP
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=AMhV
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20180302' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A collection of fixes for this series. This is a little larger than
usual at this time, but that's mainly because I was out on vacation
last week. Nothing in here is major in any way, it's just two weeks of
fixes. This contains:
- NVMe pull from Keith, with a set of fixes from the usual suspects.
- mq-deadline zone unlock fix from Damien, fixing an issue with the
SMR zone locking added for 4.16.
- two bcache fixes sent in by Michael, with changes from Coly and
Tang.
- comment typo fix from Eric for blktrace.
- return-value error handling fix for nbd, from Gustavo.
- fix a direct-io case where we don't defer to a completion handler,
making us sleep from IRQ device completion. From Jan.
- a small series from Jan fixing up holes around handling of bdev
references.
- small set of regression fixes from Jiufei, mostly fixing problems
around the gendisk pointer -> partition index change.
- regression fix from Ming, fixing a boundary issue with the discard
page cache invalidation.
- two-patch series from Ming, fixing both a core blk-mq-sched and
kyber issue around token freeing on a requeue condition"
* tag 'for-linus-20180302' of git://git.kernel.dk/linux-block: (24 commits)
block: fix a typo
block: display the correct diskname for bio
block: fix the count of PGPGOUT for WRITE_SAME
mq-deadline: Make sure to always unlock zones
nvmet: fix PSDT field check in command format
nvme-multipath: fix sysfs dangerously created links
nbd: fix return value in error handling path
bcache: fix kcrashes with fio in RAID5 backend dev
bcache: correct flash only vols (check all uuids)
blktrace_api.h: fix comment for struct blk_user_trace_setup
blockdev: Avoid two active bdev inodes for one device
genhd: Fix BUG in blkdev_open()
genhd: Fix use after free in __blkdev_get()
genhd: Add helper put_disk_and_module()
genhd: Rename get_disk() to get_disk_and_module()
genhd: Fix leaked module reference for NVME devices
direct-io: Fix sleep in atomic due to sync AIO
nvme-pci: Fix nvme queue cleanup if IRQ setup fails
block: kyber: fix domain token leak during requeue
blk-mq: don't call io sched's .requeue_request when requeueing rq to ->dispatch
...
- Make the task scheduler load and utilization signals be
frequency-invariant again after recent changes in the SCPI
cpufreq driver (Dietmar Eggemann).
- Drop an unnecessary leftover Kconfig dependency from the SCPI
cpufreq driver (Sudeep Holla).
- Fix the initialization of the s3c24xx cpufreq driver (Viresh
Kumar).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=AMSC
-----END PGP SIGNATURE-----
Merge tag 'pm-4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix three issues in cpufreq drivers: one recent regression, one
leftover Kconfig dependency and one old but "stable" material.
Specifics:
- Make the task scheduler load and utilization signals be
frequency-invariant again after recent changes in the SCPI cpufreq
driver (Dietmar Eggemann).
- Drop an unnecessary leftover Kconfig dependency from the SCPI
cpufreq driver (Sudeep Holla).
- Fix the initialization of the s3c24xx cpufreq driver (Viresh
Kumar)"
* tag 'pm-4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: s3c24xx: Fix broken s3c_cpufreq_init()
cpufreq: scpi: Fix incorrect arm_big_little config dependency
cpufreq: scpi: invoke frequency-invariance setter function
When recursive inclusion is detected, the line number of the last
'included from:' is wrong.
[Test Case]
Kconfig:
-------->8--------
source "Kconfig2"
-------->8--------
Kconfig2:
-------->8--------
source "Kconfig3"
-------->8--------
Kconfig3:
-------->8--------
source "Kconfig"
-------->8--------
[Result]
$ make allyesconfig
scripts/kconfig/conf --allyesconfig Kconfig
Kconfig:1: recursive inclusion detected. Inclusion path:
current file : 'Kconfig'
included from: 'Kconfig3:1'
included from: 'Kconfig2:1'
included from: 'Kconfig:3'
scripts/kconfig/Makefile:89: recipe for target 'allyesconfig' failed
make[1]: *** [allyesconfig] Error 1
Makefile:512: recipe for target 'allyesconfig' failed
make: *** [allyesconfig] Error 2
where we expect
current file : 'Kconfig'
included from: 'Kconfig3:1'
included from: 'Kconfig2:1'
included from: 'Kconfig:1'
The 'iter->lineno+1' in the second fpinrtf() should be 'iter->lineno-1'.
I refactored the code to merge the two fprintf() calls.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
The error message:
[Fri Feb 16 13:42:13 2018] i2c-thunderx 0000:01:09.4: unhandled state: 0
is mis-leading as state 0 (bus error) is not an unknown state.
Return -EIO as before but avoid printing the message. Also rename
STAT_ERROR to STATE_BUS_ERROR.
Signed-off-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
-----BEGIN PGP SIGNATURE-----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=vIz0
-----END PGP SIGNATURE-----
Merge tag 'at24-4.16-rc4-for-wolfram' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current
Pull in this fixup to get rid of a dependency for the next cycle:
"- sort the manufacturers in DT bindings alphabetically"
When run under QEMU, calling mfctl(16) creates some overhead because the
qemu timer has to be scaled and moved into the register. This patch
reduces the number of calls to mfctl(16) by moving the calls out of the
loops.
Additionally, increase the minimal time interval to 8000 cycles instead
of 500 to compensate possible QEMU delays when delivering interrupts.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.14+
When running on qemu we know that the (emulated) cr16 cpu-internal
clocks are syncronized. So let's use them unconditionally on qemu.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.14+
The architecture specification says (for 64-bit systems): PDC is a per
processor resource, and operating system software must be prepared to
manage separate pointers to PDCE_PROC for each processor. The address
of PDCE_PROC for the monarch processor is stored in the Page Zero
location MEM_PDC. The address of PDCE_PROC for each non-monarch
processor is passed in gr26 when PDCE_RESET invokes OS_RENDEZ.
Currently we still use one PDC for all CPUs, but in case we face a
machine which is following the specification let's warn about it.
Signed-off-by: Helge Deller <deller@gmx.de>
