| Commit message (Collapse) | Author | Age | Files | Lines |
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If NBD_DISCONNECT_ON_CLOSE is set on a device, then the driver will
issue a disconnect from nbd_release if the device has no remaining
bdev->bd_openers.
Fix ret val so reconfigure with only setting the flag succeeds.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Doron Roberts-Kedes <doronrk@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Pull networking fixes from David Miller:
1) Fix several bpfilter/UMH bugs, in particular make the UMH build not
depend upon X86 specific Kconfig symbols. From Alexei Starovoitov.
2) Fix handling of modified context pointer in bpf verifier, from
Daniel Borkmann.
3) Kill regression in ifdown/ifup sequences for hv_netvsc driver, from
Dexuan Cui.
4) When the bonding primary member name changes, we have to re-evaluate
the bond->force_primary setting, from Xiangning Yu.
5) Eliminate possible padding beyone end of SKB in cdc_ncm driver, from
Bjørn Mork.
6) RX queue length reported for UDP sockets in procfs and socket diag
are inaccurate, from Paolo Abeni.
7) Fix br_fdb_find_port() locking, from Petr Machata.
8) Limit sk_rcvlowat values properly in TCP, from Soheil Hassas
Yeganeh.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (23 commits)
tcp: limit sk_rcvlowat by the maximum receive buffer
net: phy: dp83822: use BMCR_ANENABLE instead of BMSR_ANEGCAPABLE for DP83620
socket: close race condition between sock_close() and sockfs_setattr()
net: bridge: Fix locking in br_fdb_find_port()
udp: fix rx queue len reported by diag and proc interface
cdc_ncm: avoid padding beyond end of skb
net/sched: act_simple: fix parsing of TCA_DEF_DATA
net: fddi: fix a possible null-ptr-deref
net: aquantia: fix unsigned numvecs comparison with less than zero
net: stmmac: fix build failure due to missing COMMON_CLK dependency
bpfilter: fix race in pipe access
bpf, xdp: fix crash in xdp_umem_unaccount_pages
xsk: Fix umem fill/completion queue mmap on 32-bit
tools/bpf: fix selftest get_cgroup_id_user
bpfilter: fix OUTPUT_FORMAT
umh: fix race condition
net: mscc: ocelot: Fix uninitialized error in ocelot_netdevice_event()
bonding: re-evaluate force_primary when the primary slave name changes
ip_tunnel: Fix name string concatenate in __ip_tunnel_create()
hv_netvsc: Fix a network regression after ifdown/ifup
...
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Daniel Borkmann says:
====================
pull-request: bpf 2018-06-08
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix in the BPF verifier to reject modified ctx pointers on helper
functions, from Daniel.
2) Fix in BPF kselftests for get_cgroup_id_user() helper to only
record the cgroup id for a provided pid in order to reduce test
failures from processes interferring with the test, from Yonghong.
3) Fix a crash in AF_XDP's mem accounting when the process owning
the sock has CAP_IPC_LOCK capabilities set, from Daniel.
4) Fix an issue for AF_XDP on 32 bit machines where XDP_UMEM_PGOFF_*_RING
defines need ULL suffixes and use loff_t type as they are otherwise
truncated, from Geert.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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With gcc-4.1.2 on 32-bit:
net/xdp/xsk.c:663: warning: integer constant is too large for ‘long’ type
net/xdp/xsk.c:665: warning: integer constant is too large for ‘long’ type
Add the missing "ULL" suffixes to the large XDP_UMEM_PGOFF_*_RING values
to fix this.
net/xdp/xsk.c:663: warning: comparison is always false due to limited range of data type
net/xdp/xsk.c:665: warning: comparison is always false due to limited range of data type
"unsigned long" is 32-bit on 32-bit systems, hence the offset is
truncated, and can never be equal to any of the XDP_UMEM_PGOFF_*_RING
values. Use loff_t (and the required cast) to fix this.
Fixes: 423f38329d267969 ("xsk: add umem fill queue support and mmap")
Fixes: fe2308328cd2f26e ("xsk: add umem completion queue support and mmap")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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This is internal, not exposed through uapi, and although it maps with
userspace LOG_*, with the introduction of LOGLEVEL_AUDIT we are
incurring in namespace pollution.
This patch adds the NFT_LOGLEVEL_ enumeration and use it from nft_log.
Fixes: 1a893b44de45 ("netfilter: nf_tables: Add audit support to log statement")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull SCSI updates from James Bottomley:
"This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc,
xfcp, hisi_sas, cxlflash, qla2xxx.
In the absence of Nic, we're also taking target updates which are
mostly minor except for the tcmu refactor.
The only real core change to worry about is the removal of high page
bouncing (in sas, storvsc and iscsi). This has been well tested and no
problems have shown up so far"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (268 commits)
scsi: lpfc: update driver version to 12.0.0.4
scsi: lpfc: Fix port initialization failure.
scsi: lpfc: Fix 16gb hbas failing cq create.
scsi: lpfc: Fix crash in blk_mq layer when executing modprobe -r lpfc
scsi: lpfc: correct oversubscription of nvme io requests for an adapter
scsi: lpfc: Fix MDS diagnostics failure (Rx < Tx)
scsi: hisi_sas: Mark PHY as in reset for nexus reset
scsi: hisi_sas: Fix return value when get_free_slot() failed
scsi: hisi_sas: Terminate STP reject quickly for v2 hw
scsi: hisi_sas: Add v2 hw force PHY function for internal ATA command
scsi: hisi_sas: Include TMF elements in struct hisi_sas_slot
scsi: hisi_sas: Try wait commands before before controller reset
scsi: hisi_sas: Init disks after controller reset
scsi: hisi_sas: Create a scsi_host_template per HW module
scsi: hisi_sas: Reset disks when discovered
scsi: hisi_sas: Add LED feature for v3 hw
scsi: hisi_sas: Change common allocation mode of device id
scsi: hisi_sas: change slot index allocation mode
scsi: hisi_sas: Introduce hisi_sas_phy_set_linkrate()
scsi: hisi_sas: fix a typo in hisi_sas_task_prep()
...
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Make documentation on target-supported userspace-I/O design be
usable by kernel-doc by using "DOC:". This is used in the driver-api
Documentation chapter.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
To: "Nicholas A. Bellinger" <nab@linux-iscsi.org>
Cc: linux-scsi@vger.kernel.org
Cc: target-devel@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull restartable sequence support from Thomas Gleixner:
"The restartable sequences syscall (finally):
After a lot of back and forth discussion and massive delays caused by
the speculative distraction of maintainers, the core set of
restartable sequences has finally reached a consensus.
It comes with the basic non disputed core implementation along with
support for arm, powerpc and x86 and a full set of selftests
It was exposed to linux-next earlier this week, so it does not fully
comply with the merge window requirements, but there is really no
point to drag it out for yet another cycle"
* 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rseq/selftests: Provide Makefile, scripts, gitignore
rseq/selftests: Provide parametrized tests
rseq/selftests: Provide basic percpu ops test
rseq/selftests: Provide basic test
rseq/selftests: Provide rseq library
selftests/lib.mk: Introduce OVERRIDE_TARGETS
powerpc: Wire up restartable sequences system call
powerpc: Add syscall detection for restartable sequences
powerpc: Add support for restartable sequences
x86: Wire up restartable sequence system call
x86: Add support for restartable sequences
arm: Wire up restartable sequences system call
arm: Add syscall detection for restartable sequences
arm: Add restartable sequences support
rseq: Introduce restartable sequences system call
uapi/headers: Provide types_32_64.h
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Expose a new system call allowing each thread to register one userspace
memory area to be used as an ABI between kernel and user-space for two
purposes: user-space restartable sequences and quick access to read the
current CPU number value from user-space.
* Restartable sequences (per-cpu atomics)
Restartables sequences allow user-space to perform update operations on
per-cpu data without requiring heavy-weight atomic operations.
The restartable critical sections (percpu atomics) work has been started
by Paul Turner and Andrew Hunter. It lets the kernel handle restart of
critical sections. [1] [2] The re-implementation proposed here brings a
few simplifications to the ABI which facilitates porting to other
architectures and speeds up the user-space fast path.
Here are benchmarks of various rseq use-cases.
Test hardware:
arm32: ARMv7 Processor rev 4 (v7l) "Cubietruck", 2-core
x86-64: Intel E5-2630 v3@2.40GHz, 16-core, hyperthreading
The following benchmarks were all performed on a single thread.
* Per-CPU statistic counter increment
getcpu+atomic (ns/op) rseq (ns/op) speedup
arm32: 344.0 31.4 11.0
x86-64: 15.3 2.0 7.7
* LTTng-UST: write event 32-bit header, 32-bit payload into tracer
per-cpu buffer
getcpu+atomic (ns/op) rseq (ns/op) speedup
arm32: 2502.0 2250.0 1.1
x86-64: 117.4 98.0 1.2
* liburcu percpu: lock-unlock pair, dereference, read/compare word
getcpu+atomic (ns/op) rseq (ns/op) speedup
arm32: 751.0 128.5 5.8
x86-64: 53.4 28.6 1.9
* jemalloc memory allocator adapted to use rseq
Using rseq with per-cpu memory pools in jemalloc at Facebook (based on
rseq 2016 implementation):
The production workload response-time has 1-2% gain avg. latency, and
the P99 overall latency drops by 2-3%.
* Reading the current CPU number
Speeding up reading the current CPU number on which the caller thread is
running is done by keeping the current CPU number up do date within the
cpu_id field of the memory area registered by the thread. This is done
by making scheduler preemption set the TIF_NOTIFY_RESUME flag on the
current thread. Upon return to user-space, a notify-resume handler
updates the current CPU value within the registered user-space memory
area. User-space can then read the current CPU number directly from
memory.
Keeping the current cpu id in a memory area shared between kernel and
user-space is an improvement over current mechanisms available to read
the current CPU number, which has the following benefits over
alternative approaches:
- 35x speedup on ARM vs system call through glibc
- 20x speedup on x86 compared to calling glibc, which calls vdso
executing a "lsl" instruction,
- 14x speedup on x86 compared to inlined "lsl" instruction,
- Unlike vdso approaches, this cpu_id value can be read from an inline
assembly, which makes it a useful building block for restartable
sequences.
- The approach of reading the cpu id through memory mapping shared
between kernel and user-space is portable (e.g. ARM), which is not the
case for the lsl-based x86 vdso.
On x86, yet another possible approach would be to use the gs segment
selector to point to user-space per-cpu data. This approach performs
similarly to the cpu id cache, but it has two disadvantages: it is
not portable, and it is incompatible with existing applications already
using the gs segment selector for other purposes.
Benchmarking various approaches for reading the current CPU number:
ARMv7 Processor rev 4 (v7l)
Machine model: Cubietruck
- Baseline (empty loop): 8.4 ns
- Read CPU from rseq cpu_id: 16.7 ns
- Read CPU from rseq cpu_id (lazy register): 19.8 ns
- glibc 2.19-0ubuntu6.6 getcpu: 301.8 ns
- getcpu system call: 234.9 ns
x86-64 Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz:
- Baseline (empty loop): 0.8 ns
- Read CPU from rseq cpu_id: 0.8 ns
- Read CPU from rseq cpu_id (lazy register): 0.8 ns
- Read using gs segment selector: 0.8 ns
- "lsl" inline assembly: 13.0 ns
- glibc 2.19-0ubuntu6 getcpu: 16.6 ns
- getcpu system call: 53.9 ns
- Speed (benchmark taken on v8 of patchset)
Running 10 runs of hackbench -l 100000 seems to indicate, contrary to
expectations, that enabling CONFIG_RSEQ slightly accelerates the
scheduler:
Configuration: 2 sockets * 8-core Intel(R) Xeon(R) CPU E5-2630 v3 @
2.40GHz (directly on hardware, hyperthreading disabled in BIOS, energy
saving disabled in BIOS, turboboost disabled in BIOS, cpuidle.off=1
kernel parameter), with a Linux v4.6 defconfig+localyesconfig,
restartable sequences series applied.
* CONFIG_RSEQ=n
avg.: 41.37 s
std.dev.: 0.36 s
* CONFIG_RSEQ=y
avg.: 40.46 s
std.dev.: 0.33 s
- Size
On x86-64, between CONFIG_RSEQ=n/y, the text size increase of vmlinux is
567 bytes, and the data size increase of vmlinux is 5696 bytes.
[1] https://lwn.net/Articles/650333/
[2] http://www.linuxplumbersconf.org/2013/ocw/system/presentations/1695/original/LPC%20-%20PerCpu%20Atomics.pdf
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Watson <davejwatson@fb.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Chris Lameter <cl@linux.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Andrew Hunter <ahh@google.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ben Maurer <bmaurer@fb.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-api@vger.kernel.org
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20151027235635.16059.11630.stgit@pjt-glaptop.roam.corp.google.com
Link: http://lkml.kernel.org/r/20150624222609.6116.86035.stgit@kitami.mtv.corp.google.com
Link: https://lkml.kernel.org/r/20180602124408.8430-3-mathieu.desnoyers@efficios.com
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Provide helper macros for fields which represent pointers in
kernel-userspace ABI. This facilitates handling of 32-bit
user-space by 64-bit kernels by defining those fields as
32-bit 0-padding and 32-bit integer on 32-bit architectures,
which allows the kernel to treat those as 64-bit integers.
The order of padding and 32-bit integer depends on the
endianness.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Watson <davejwatson@fb.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Chris Lameter <cl@linux.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Andrew Hunter <ahh@google.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ben Maurer <bmaurer@fb.com>
Cc: linux-api@vger.kernel.org
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lkml.kernel.org/r/20180602124408.8430-2-mathieu.desnoyers@efficios.com
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO updates from Greg KH:
"Here is the big staging and IIO driver update for 4.18-rc1.
It was delayed as I wanted to make sure the final driver deletions did
not cause any major merge issues, and all now looks good.
There are a lot of patches here, just over 1000. The diffstat summary
shows the major changes here:
1007 files changed, 16828 insertions(+), 227770 deletions(-)
Because of this, we might be close to shrinking the overall kernel
source code size for two releases in a row.
There was loads of work in this release cycle, primarily:
- tons of ks7010 driver cleanups
- lots of mt7621 driver fixes and cleanups
- most driver cleanups
- wilc1000 fixes and cleanups
- lots and lots of IIO driver cleanups and new additions
- debugfs cleanups for all staging drivers
- lots of other staging driver cleanups and fixes, the shortlog has
the full details.
but the big user-visable things here are the removal of 3 chunks of
code:
- ncpfs and ipx were removed on schedule, no one has cared about this
code since it moved to staging last year, and if it needs to come
back, it can be reverted.
- lustre file system is removed.
I've ranted at the lustre developers about once a year for the past
5 years, with no real forward progress at all to clean things up
and get the code into the "real" part of the kernel.
Given that the lustre developers continue to work on an external
tree and try to port those changes to the in-kernel tree every once
in a while, this whole thing really really is not working out at
all. So I'm deleting it so that the developers can spend the time
working in their out-of-tree location and get things cleaned up
properly to get merged into the tree correctly at a later date.
Because of these file removals, you will have merge issues on some of
these files (2 in the ipx code, 1 in the ncpfs code, and 1 in the
atomisp driver). Just delete those files, it's a simple merge :)
All of this has been in linux-next for a while with no reported
problems"
* tag 'staging-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1011 commits)
staging: ipx: delete it from the tree
ncpfs: remove uapi .h files
ncpfs: remove Documentation
ncpfs: remove compat functionality
staging: ncpfs: delete it
staging: lustre: delete the filesystem from the tree.
staging: vc04_services: no need to save the log debufs dentries
staging: vc04_services: vchiq_debugfs_log_entry can be a void *
staging: vc04_services: remove struct vchiq_debugfs_info
staging: vc04_services: move client dbg directory into static variable
staging: vc04_services: remove odd vchiq_debugfs_top() wrapper
staging: vc04_services: no need to check debugfs return values
staging: mt7621-gpio: reorder includes alphabetically
staging: mt7621-gpio: change gc_map to don't use pointers
staging: mt7621-gpio: use GPIOF_DIR_OUT and GPIOF_DIR_IN macros instead of custom values
staging: mt7621-gpio: change 'to_mediatek_gpio' to make just a one line return
staging: mt7621-gpio: dt-bindings: update documentation for #interrupt-cells property
staging: mt7621-gpio: update #interrupt-cells for the gpio node
staging: mt7621-gpio: dt-bindings: complete documentation for the gpio
staging: mt7621-dts: add missing properties to gpio node
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Now that ncpfs is removed from the tree, there is no need to keep the
uapi header files around as no one uses them, and it is not a feature
that the kernel supports anymore.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull aio iopriority support from Al Viro:
"The rest of aio stuff for this cycle - Adam's aio ioprio series"
* 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: aio ioprio use ioprio_check_cap ret val
fs: aio ioprio add explicit block layer dependence
fs: iomap dio set bio prio from kiocb prio
fs: blkdev set bio prio from kiocb prio
fs: Add aio iopriority support
fs: Convert kiocb rw_hint from enum to u16
block: add ioprio_check_cap function
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This is the per-I/O equivalent of the ioprio_set system call.
When IOCB_FLAG_IOPRIO is set on the iocb aio_flags field, then we set the
newly added kiocb ki_ioprio field to the value in the iocb aio_reqprio field.
This patch depends on block: add ioprio_check_cap function.
Signed-off-by: Adam Manzanares <adam.manzanares@wdc.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
"This contains some minor code cleanups (fixing return types of
functions), some fixes for Linux running as Xen PVH guest, and adding
of a new guest resource mapping feature for Xen tools"
* tag 'for-linus-4.18-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/PVH: Make GDT selectors PVH-specific
xen/PVH: Set up GS segment for stack canary
xen/store: do not store local values in xen_start_info
xen-netfront: fix xennet_start_xmit()'s return type
xen/privcmd: add IOCTL_PRIVCMD_MMAP_RESOURCE
xen: Change return type to vm_fault_t
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My recent Xen patch series introduces a new HYPERVISOR_memory_op to
support direct priv-mapping of certain guest resources (such as ioreq
pages, used by emulators) by a tools domain, rather than having to access
such resources via the guest P2M.
This patch adds the necessary infrastructure to the privcmd driver and
Xen MMU code to support direct resource mapping.
NOTE: The adjustment in the MMU code is partially cosmetic. Xen will now
allow a PV tools domain to map guest pages either by GFN or MFN, thus
the term 'mfn' has been swapped for 'pfn' in the lower layers of the
remap code.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Merge updates from Andrew Morton:
- a few misc things
- ocfs2 updates
- v9fs updates
- MM
- procfs updates
- lib/ updates
- autofs updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
autofs: small cleanup in autofs_getpath()
autofs: clean up includes
autofs: comment on selinux changes needed for module autoload
autofs: update MAINTAINERS entry for autofs
autofs: use autofs instead of autofs4 in documentation
autofs: rename autofs documentation files
autofs: create autofs Kconfig and Makefile
autofs: delete fs/autofs4 source files
autofs: update fs/autofs4/Makefile
autofs: update fs/autofs4/Kconfig
autofs: copy autofs4 to autofs
autofs4: use autofs instead of autofs4 everywhere
autofs4: merge auto_fs.h and auto_fs4.h
fs/binfmt_misc.c: do not allow offset overflow
checkpatch: improve patch recognition
lib/ucs2_string.c: add MODULE_LICENSE()
lib/mpi: headers cleanup
lib/percpu_ida.c: use _irqsave() instead of local_irq_save() + spin_lock
lib/idr.c: remove simple_ida_lock
lib/bitmap.c: micro-optimization for __bitmap_complement()
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The autofs module has long since been removed so there's no need to have
two separate include files for autofs.
Link: http://lkml.kernel.org/r/152626703024.28589.9571964661718767929.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Define a new PageTable bit in the page_type and use it to mark pages in
use as page tables. This can be helpful when debugging crashdumps or
analysing memory fragmentation. Add a KPF flag to report these pages to
userspace and update page-types.c to interpret that flag.
Note that only pages currently accounted as NR_PAGETABLES are tracked as
PageTable; this does not include pgd/p4d/pud/pmd pages. Those will be the
subject of a later patch.
Link: http://lkml.kernel.org/r/20180518194519.3820-4-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull integrity updates from James Morris:
"From Mimi:
- add run time support for specifying additional security xattrs
included in the security.evm HMAC/signature
- some code clean up and bug fixes"
* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
EVM: unlock on error path in evm_read_xattrs()
EVM: prevent array underflow in evm_write_xattrs()
EVM: Fix null dereference on xattr when xattr fails to allocate
EVM: fix memory leak of temporary buffer 'temp'
IMA: use list_splice_tail_init_rcu() instead of its open coded variant
ima: use match_string() helper
ima: fix updating the ima_appraise flag
ima: based on policy verify firmware signatures (pre-allocated buffer)
ima: define a new policy condition based on the filesystem name
EVM: Allow runtime modification of the set of verified xattrs
EVM: turn evm_config_xattrnames into a list
integrity: Add an integrity directory in securityfs
ima: Remove unused variable ima_initialized
ima: Unify logging
ima: Reflect correct permissions for policy
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Sites may wish to provide additional metadata alongside files in order
to make more fine-grained security decisions[1]. The security of this is
enhanced if this metadata is protected, something that EVM makes
possible. However, the kernel cannot know about the set of extended
attributes that local admins may wish to protect, and hardcoding this
policy in the kernel makes it difficult to change over time and less
convenient for distributions to enable.
This patch adds a new /sys/kernel/security/integrity/evm/evm_xattrs node,
which can be read to obtain the current set of EVM-protected extended
attributes or written to in order to add new entries. Extending this list
will not change the validity of any existing signatures provided that the
file in question does not have any of the additional extended attributes -
missing xattrs are skipped when calculating the EVM hash.
[1] For instance, a package manager could install information about the
package uploader in an additional extended attribute. Local LSM policy
could then be associated with that extended attribute in order to
restrict the privileges available to packages from less trusted
uploaders.
Signed-off-by: Matthew Garrett <mjg59@google.com>
Reviewed-by: James Morris <james.morris@microsoft.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
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Pull rdma updates from Jason Gunthorpe:
"This has been a quiet cycle for RDMA, the big bulk is the usual
smallish driver updates and bug fixes. About four new uAPI related
things. Not as much Szykaller patches this time, the bugs it finds are
getting harder to fix.
Summary:
- More work cleaning up the RDMA CM code
- Usual driver bug fixes and cleanups for qedr, qib, hfi1, hns,
i40iw, iw_cxgb4, mlx5, rxe
- Driver specific resource tracking and reporting via netlink
- Continued work for name space support from Parav
- MPLS support for the verbs flow steering uAPI
- A few tricky IPoIB fixes improving robustness
- HFI1 driver support for the '16B' management packet format
- Some auditing to not print kernel pointers via %llx or similar
- Mark the entire 'UCM' user-space interface as BROKEN with the
intent to remove it entirely. The user space side of this was long
ago replaced with RDMA-CM and syzkaller is finding bugs in the
residual UCM interface nobody wishes to fix because nobody uses it.
- Purge more bogus BUG_ON's from Leon
- 'flow counters' verbs uAPI
- T10 fixups for iser/isert, these are Acked by Martin but going
through the RDMA tree due to dependencies"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (138 commits)
RDMA/mlx5: Update SPDX tags to show proper license
RDMA/restrack: Change SPDX tag to properly reflect license
IB/hfi1: Fix comment on default hdr entry size
IB/hfi1: Rename exp_lock to exp_mutex
IB/hfi1: Add bypass register defines and replace blind constants
IB/hfi1: Remove unused variable
IB/hfi1: Ensure VL index is within bounds
IB/hfi1: Fix user context tail allocation for DMA_RTAIL
IB/hns: Use zeroing memory allocator instead of allocator/memset
infiniband: fix a possible use-after-free bug
iw_cxgb4: add INFINIBAND_ADDR_TRANS dependency
IB/isert: use T10-PI check mask definitions from core layer
IB/iser: use T10-PI check mask definitions from core layer
RDMA/core: introduce check masks for T10-PI offload
IB/isert: fix T10-pi check mask setting
IB/mlx5: Add counters read support
IB/mlx5: Add flow counters read support
IB/mlx5: Add flow counters binding support
IB/mlx5: Add counters create and destroy support
IB/uverbs: Add support for flow counters
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git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git into for-next
Pull verbs counters series from Leon Romanovsky:
====================
Verbs flow counters support
This series comes to allow user space applications to monitor real time
traffic activity and events of the verbs objects it manages, e.g.: ibv_qp,
ibv_wq, ibv_flow.
The API enables generic counters creation and define mapping to
association with a verbs object, the current mlx5 driver is using this API
for flow counters.
With this API, an application can monitor the entire life cycle of object
activity, defined here as a static counters attachment. This API also
allows dynamic counters monitoring of measurement points for a partial
period in the verbs object life cycle.
In addition it presents the implementation of the generic counters
interface.
This will be achieved by extending flow creation by adding a new flow
count specification type which allows the user to associate a previously
created flow counters using the generic verbs counters interface to the
created flow, once associated the user could read statistics by using the
read function of the generic counters interface.
The API includes:
1. create and destroyed API of a new counters objects
2. read the counters values from HW
Note:
Attaching API to allow application to define the measurement points per
objects is a user space only API and this data is passed to kernel when
the counted object (e.g. flow) is created with the counters object.
===================
* tag 'verbs_flow_counters':
IB/mlx5: Add counters read support
IB/mlx5: Add flow counters read support
IB/mlx5: Add flow counters binding support
IB/mlx5: Add counters create and destroy support
IB/uverbs: Add support for flow counters
IB/core: Add support for flow counters
IB/core: Support passing uhw for create_flow
IB/uverbs: Add read counters support
IB/core: Introduce counters read verb
IB/uverbs: Add create/destroy counters support
IB/core: Introduce counters object and its create/destroy
IB/uverbs: Add an ib_uobject getter to ioctl() infrastructure
net/mlx5: Export flow counter related API
net/mlx5: Use flow counter pointer as input to the query function
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Associates a counters with a flow when IB_FLOW_SPEC_ACTION_COUNT is part
of the flow specifications.
The counters user space placements of location and description (index,
description) pairs are passed as private data of the counters flow
specification.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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The struct ib_uverbs_flow_spec_action_count associates a counters object
with the flow.
Post this association the flow counters can be read via the counters
object.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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This patch exposes the read counters verb to user space applications. By
that verb the user can read the hardware counters which are associated
with the counters object.
The application needs to provide a sufficient memory to hold the
statistics.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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User space application which uses counters functionality, is expected to
allocate/release the counters resources by calling create/destroy verbs
and in turn get a unique handle that can be used to attach the counters to
its counted type.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma for-next
Leon Romanovsky says:
====================
Introduce new internal to mlx5 CQE format - mini-CQE. It is a CQE in
compressed form that holds data needed to extra a single full CQE.
It is a stride index, byte count and packet checksum.
====================
* mini_cqe:
IB/mlx5: Introduce a new mini-CQE format
IB/mlx5: Refactor CQE compression response
net/mlx5: Exposing a new mini-CQE format
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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The new mini-CQE format includes the stride index, byte count and
packet checksum.
Stride index is needed for striding WQ feature.
This patch exposes this capability and enables its setting
via mlx5 UHW data as part of query device and cq creation.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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This patch reports the device's capbilities to offload
encapsulated MPLS tunnel protocols to user-space:
- Capability to offload MPLS over GRE.
- Capability to offload MPLS over UDP.
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Add ib_uverbs_flow_spec_mpls to define a rule to match the MPLS
protocol.
The spec includes the generic specs header, type, size and reserved
fields while the filter itself is defined as ib_uverbs_flow_mpls_filter
and includes a single 32bit field named 'label' which consists of:
Bits 0:19 - The MPLS label.
Bits 20:22 - Traffic class field.
Bit 23 - Bottom of stack bit.
Bits 24:31 - Time to live (TTL) field.
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Add ib_uverbs_flow_spec_gre to define a rule to match the GRE
encapsulation protocol.
The spec includes the generic specs header, type, size and reserved
fields while the filter itself is defined as ib_uverbs_flow_gre_filter
and includes:
1. Checksum present bit, key present bit and version bits in a single
16bit field.
2. Protocol type field - Indicates the ether protocol type of the
encapsulated payload.
3. Key field - present if key bit is set and contains an application
specific key value.
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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During this merge window, we added support for addition RDMA netlink
operations. Unfortunately, we added the items in the middle of our uapi
enum. Fix that before final release.
Fixes: da5c85078215 ("RDMA/nldev: add driver-specific resource
tracking")
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Several items of conflict have arisen between the RDMA stack's for-rc
branch and upcoming for-next work:
9fd4350ba895 ("IB/rxe: avoid double kfree_skb") directly conflicts with
2e47350789eb ("IB/rxe: optimize the function duplicate_request")
Patches already submitted by Intel for the hfi1 driver will fail to
apply cleanly without this merge
Other people on the mailing list have notified that their upcoming
patches also fail to apply cleanly without this merge
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Each driver can register a "fill entry" function with the restrack core.
This function will be called when filling out a resource, allowing the
driver to add driver-specific details. The details consist of a
nltable of nested attributes, that are in the form of <key, [print-type],
value> tuples. Both key and value attributes are mandatory. The key
nlattr must be a string, and the value nlattr can be one of the driver
attributes that are generic, but typed, allowing the attributes to be
validated. Currently the driver nlattr types include string, s32,
u32, s64, and u64. The print-type nlattr allows a driver to specify
an alternative display format for user tools displaying the attribute.
For example, a u32 attribute will default to "%u", but a print-type
attribute can be included for it to be displayed in hex. This allows
the user tool to print the number in the format desired by the driver
driver.
More attrs can be defined as they become needed by drivers.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Add a specific RDMA_NLDEV_ATTR_PAD attribute to be used for 64b
attribute padding. To preserve the ABI, make this attribute equal to
RDMA_NLDEV_ATTR_UNSPEC, which has a value of 0, because that has been
used up until now as the pad attribute.
Change all the previous use of 0 as the pad with this
new enum.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- unify AER decoding for native and ACPI CPER sources (Alexandru
Gagniuc)
- add TLP header info to AER tracepoint (Thomas Tai)
- add generic pcie_wait_for_link() interface (Oza Pawandeep)
- handle AER ERR_FATAL by removing and re-enumerating devices, as
Downstream Port Containment does (Oza Pawandeep)
- factor out common code between AER and DPC recovery (Oza Pawandeep)
- stop triggering DPC for ERR_NONFATAL errors (Oza Pawandeep)
- share ERR_FATAL recovery path between AER and DPC (Oza Pawandeep)
- disable ASPM L1.2 substate if we don't have LTR (Bjorn Helgaas)
- respect platform ownership of LTR (Bjorn Helgaas)
- clear interrupt status in top half to avoid interrupt storm (Oza
Pawandeep)
- neaten pci=earlydump output (Andy Shevchenko)
- avoid errors when extended config space inaccessible (Gilles Buloz)
- prevent sysfs disable of device while driver attached (Christoph
Hellwig)
- use core interface to report PCIe link properties in bnx2x, bnxt_en,
cxgb4, ixgbe (Bjorn Helgaas)
- remove unused pcie_get_minimum_link() (Bjorn Helgaas)
- fix use-before-set error in ibmphp (Dan Carpenter)
- fix pciehp timeouts caused by Command Completed errata (Bjorn
Helgaas)
- fix refcounting in pnv_php hotplug (Julia Lawall)
- clear pciehp Presence Detect and Data Link Layer Status Changed on
resume so we don't miss hotplug events (Mika Westerberg)
- only request pciehp control if we support it, so platform can use
ACPI hotplug otherwise (Mika Westerberg)
- convert SHPC to be builtin only (Mika Westerberg)
- request SHPC control via _OSC if we support it (Mika Westerberg)
- simplify SHPC handoff from firmware (Mika Westerberg)
- fix an SHPC quirk that mistakenly included *all* AMD bridges as well
as devices from any vendor with device ID 0x7458 (Bjorn Helgaas)
- assign a bus number even to non-native hotplug bridges to leave
space for acpiphp additions, to fix a common Thunderbolt xHCI
hot-add failure (Mika Westerberg)
- keep acpiphp from scanning native hotplug bridges, to fix common
Thunderbolt hot-add failures (Mika Westerberg)
- improve "partially hidden behind bridge" messages from core (Mika
Westerberg)
- add macros for PCIe Link Control 2 register (Frederick Lawler)
- replace IB/hfi1 custom macros with PCI core versions (Frederick
Lawler)
- remove dead microblaze and xtensa code (Bjorn Helgaas)
- use dev_printk() when possible in xtensa and mips (Bjorn Helgaas)
- remove unused pcie_port_acpi_setup() and portdrv_acpi.c (Bjorn
Helgaas)
- add managed interface to get PCI host bridge resources from OF (Jan
Kiszka)
- add support for unbinding generic PCI host controller (Jan Kiszka)
- fix memory leaks when unbinding generic PCI host controller (Jan
Kiszka)
- request legacy VGA framebuffer only for VGA devices to avoid false
device conflicts (Bjorn Helgaas)
- turn on PCI_COMMAND_IO & PCI_COMMAND_MEMORY in pci_enable_device()
like everybody else, not in pcibios_fixup_bus() (Bjorn Helgaas)
- add generic enable function for simple SR-IOV hardware (Alexander
Duyck)
- use generic SR-IOV enable for ena, nvme (Alexander Duyck)
- add ACS quirk for Intel 7th & 8th Gen mobile (Alex Williamson)
- add ACS quirk for Intel 300 series (Mika Westerberg)
- enable register clock for Armada 7K/8K (Gregory CLEMENT)
- reduce Keystone "link already up" log level (Fabio Estevam)
- move private DT functions to drivers/pci/ (Rob Herring)
- factor out dwc CONFIG_PCI Kconfig dependencies (Rob Herring)
- add DesignWare support to the endpoint test driver (Gustavo
Pimentel)
- add DesignWare support for endpoint mode (Gustavo Pimentel)
- use devm_ioremap_resource() instead of devm_ioremap() in dra7xx and
artpec6 (Gustavo Pimentel)
- fix Qualcomm bitwise NOT issue (Dan Carpenter)
- add Qualcomm runtime PM support (Srinivas Kandagatla)
- fix DesignWare enumeration below bridges (Koen Vandeputte)
- use usleep() instead of mdelay() in endpoint test (Jia-Ju Bai)
- add configfs entries for pci_epf_driver device IDs (Kishon Vijay
Abraham I)
- clean up pci_endpoint_test driver (Gustavo Pimentel)
- update Layerscape maintainer email addresses (Minghuan Lian)
- add COMPILE_TEST to improve build test coverage (Rob Herring)
- fix Hyper-V bus registration failure caused by domain/serial number
confusion (Sridhar Pitchai)
- improve Hyper-V refcounting and coding style (Stephen Hemminger)
- avoid potential Hyper-V hang waiting for a response that will never
come (Dexuan Cui)
- implement Mediatek chained IRQ handling (Honghui Zhang)
- fix vendor ID & class type for Mediatek MT7622 (Honghui Zhang)
- add Mobiveil PCIe host controller driver (Subrahmanya Lingappa)
- add Mobiveil MSI support (Subrahmanya Lingappa)
- clean up clocks, MSI, IRQ mappings in R-Car probe failure paths
(Marek Vasut)
- poll more frequently (5us vs 5ms) while waiting for R-Car data link
active (Marek Vasut)
- use generic OF parsing interface in R-Car (Vladimir Zapolskiy)
- add R-Car V3H (R8A77980) "compatible" string (Sergei Shtylyov)
- add R-Car gen3 PHY support (Sergei Shtylyov)
- improve R-Car PHYRDY polling (Sergei Shtylyov)
- clean up R-Car macros (Marek Vasut)
- use runtime PM for R-Car controller clock (Dien Pham)
- update arm64 defconfig for Rockchip (Shawn Lin)
- refactor Rockchip code to facilitate both root port and endpoint
mode (Shawn Lin)
- add Rockchip endpoint mode driver (Shawn Lin)
- support VMD "membar shadow" feature (Jon Derrick)
- support VMD bus number offsets (Jon Derrick)
- add VMD "no AER source ID" quirk for more device IDs (Jon Derrick)
- remove unnecessary host controller CONFIG_PCIEPORTBUS Kconfig
selections (Bjorn Helgaas)
- clean up quirks.c organization and whitespace (Bjorn Helgaas)
* tag 'pci-v4.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (144 commits)
PCI/AER: Replace struct pcie_device with pci_dev
PCI/AER: Remove unused parameters
PCI: qcom: Include gpio/consumer.h
PCI: Improve "partially hidden behind bridge" log message
PCI: Improve pci_scan_bridge() and pci_scan_bridge_extend() doc
PCI: Move resource distribution for single bridge outside loop
PCI: Account for all bridges on bus when distributing bus numbers
ACPI / hotplug / PCI: Drop unnecessary parentheses
ACPI / hotplug / PCI: Mark stale PCI devices disconnected
ACPI / hotplug / PCI: Don't scan bridges managed by native hotplug
PCI: hotplug: Add hotplug_is_native()
PCI: shpchp: Add shpchp_is_native()
PCI: shpchp: Fix AMD POGO identification
PCI: mobiveil: Add MSI support
PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver
PCI/AER: Decode Error Source Requester ID
PCI/AER: Remove aer_recover_work_func() forward declaration
PCI/DPC: Use the generic pcie_do_fatal_recovery() path
PCI/AER: Pass service type to pcie_do_fatal_recovery()
PCI/DPC: Disable ERR_NONFATAL handling by DPC
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- add macros for PCIe Link Control 2 register (Frederick Lawler)
- replace IB/hfi1 custom macros with PCI core versions (Frederick Lawler)
- remove dead microblaze and xtensa code (Bjorn Helgaas)
- use dev_printk() when possible in xtensa and mips (Bjorn Helgaas)
* pci/misc:
MIPS: PCI: Use dev_printk() when possible
xtensa/PCI: Use dev_printk() when possible
xtensa/PCI: Make variables static
xtensa/PCI: Remove dead code
microblaze/PCI: Remove pcibios_claim_one_bus() dead code
microblaze/PCI: Remove pcibios_finish_adding_to_bus() dead code
IB/hfi1: Replace custom hfi1 macros with PCIe macros
PCI: Add PCI_EXP_LNKCTL2_TLS* macros
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The Link Control 2 register is missing macros for Target Link Speeds. Add
those in.
Signed-off-by: Frederick Lawler <fred@fredlawl.com>
[bhelgaas: use "GT" instead of "GB"]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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PCIe ERR_NONFATAL errors mean a particular transaction is unreliable but
the Link is otherwise fully functional (PCIe r4.0, sec 6.2.2).
The AER driver handles these by logging the error details and calling
driver-supplied pci_error_handlers callbacks. It does not reset downstream
devices, does not remove them from the PCI subsystem, does not re-enumerate
them, and does not call their driver .remove() or .probe() methods.
But DPC driver previously enabled DPC on ERR_NONFATAL, so if the hardware
supports DPC, these errors caused a Link reset (performed automatically by
the hardware), followed by the DPC driver removing affected devices (which
calls their .remove() methods), bringing the Link back up, and
re-enumerating (which calls driver .probe() methods).
Disable ERR_NONFATAL DPC triggering so these errors will only be handled by
AER. This means drivers won't have to deal with different usage of their
pci_error_handlers callbacks and .probe() and .remove() methods based on
whether the platform has DPC support.
Signed-off-by: Oza Pawandeep <poza@codeaurora.org>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- remove of atomisp driver from staging, as nobody would have time to
dedicate huge efforts to fix all the problems there. Also, we have a
feeling that the driver may not even run the way it is.
- move Zoran driver to staging, in order to be either fixed to use VB2
and the proper media kAPIs or to be removed
- remove videobuf-dvb driver, with is unused for a while
- some V4L2 documentation fixes/improvements
- new sensor drivers: imx258 and ov7251
- a new driver was added to allow using I2C transparent drivers
- several improvements at the ddbridge driver
- several improvements at the ISDB pt1 driver, making it more coherent
with the DVB framework
- added a new platform driver for MIPI CSI-2 RX: cadence
- now, all media drivers can be compiled on x86 with COMPILE_TEST
- almost all media drivers now build on non-x86 architectures with
COMPILE_TEST
- lots of other random stuff: cleanups, support for new board models,
bug fixes, etc
* tag 'media/v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (464 commits)
media: omap2: fix compile-testing with FB_OMAP2=m
media: media/radio/Kconfig: add back RADIO_ISA
media: v4l2-ioctl.c: fix missing unlock in __video_do_ioctl()
media: pxa_camera: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power
media: arch: sh: migor: Fix TW9910 PDN gpio
media: staging: tegra-vde: Reset VDE regardless of memory client resetting failure
media: marvel-ccic: mmp: select VIDEOBUF2_VMALLOC/DMA_CONTIG
media: marvel-ccic: allow ccic and mmp drivers to coexist
media: uvcvideo: Prevent setting unavailable flags
media: ddbridge: conditionally enable fast TS for stv0910-equipped bridges
media: dvb-frontends/stv0910: make TS speed configurable
media: ddbridge/mci: add identifiers to function definition arguments
media: ddbridge/mci: protect against out-of-bounds array access in stop()
media: rc: ensure input/lirc device can be opened after register
media: rc: nuvoton: Keep device enabled during reg init
media: rc: nuvoton: Keep track of users on CIR enable/disable
media: rc: nuvoton: Tweak the interrupt enabling dance
media: uvcvideo: Support realtek's UVC 1.5 device
media: uvcvideo: Fix driver reference counting
media: gspca_zc3xx: Enable short exposure times for OV7648
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Linux 4.17-rc4
* tag 'v4.17-rc4': (920 commits)
Linux 4.17-rc4
KVM: x86: remove APIC Timer periodic/oneshot spikes
genksyms: fix typo in parse.tab.{c,h} generation rules
kbuild: replace hardcoded bison in cmd_bison_h with $(YACC)
gcc-plugins: fix build condition of SANCOV plugin
MAINTAINERS: Update Kbuild entry with a few paths
Revert "usb: host: ehci: Use dma_pool_zalloc()"
platform/x86: Kconfig: Fix dell-laptop dependency chain.
platform/x86: asus-wireless: Fix NULL pointer dereference
arm64: vgic-v2: Fix proxying of cpuif access
KVM: arm/arm64: vgic_init: Cleanup reference to process_maintenance
KVM: arm64: Fix order of vcpu_write_sys_reg() arguments
MAINTAINERS & files: Canonize the e-mails I use at files
media: imx-media-csi: Fix inconsistent IS_ERR and PTR_ERR
tools: power/acpi, revert to LD = gcc
bdi: Fix oops in wb_workfn()
RDMA/cma: Do not query GID during QP state transition to RTR
IB/mlx4: Fix integer overflow when calculating optimal MTT size
IB/hfi1: Fix memory leak in exception path in get_irq_affinity()
IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure
...
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C libraries with 64-bit time_t use an incompatible format for
struct omap3isp_stat_data. This changes the kernel code to
support either version, by moving over the normal handling
to the 64-bit variant, and adding compatiblity code to handle
the old binary format with the existing ioctl command code.
Fortunately, the command code includes the size of the structure,
so the difference gets handled automatically. In the process of
eliminating the references to 'struct timeval' from the kernel,
I also change the way the timestamp is generated internally,
basically by open-coding the v4l2_get_timestamp() call.
[Sakari Ailus: Alphabetical order of headers, clean up compat code]
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Since the kernel now modifies the timeout, make it possible to retrieve
the current value.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Notable changes:
- Support for split PMD page table lock on 64-bit Book3S (Power8/9).
- Add support for HAVE_RELIABLE_STACKTRACE, so we properly support
live patching again.
- Add support for patching barrier_nospec in copy_from_user() and
syscall entry.
- A couple of fixes for our data breakpoints on Book3S.
- A series from Nick optimising TLB/mm handling with the Radix MMU.
- Numerous small cleanups to squash sparse/gcc warnings from Mathieu
Malaterre.
- Several series optimising various parts of the 32-bit code from
Christophe Leroy.
- Removal of support for two old machines, "SBC834xE" and "C2K"
("GEFanuc,C2K"), which is why the diffstat has so many deletions.
And many other small improvements & fixes.
There's a few out-of-area changes. Some minor ftrace changes OK'ed by
Steve, and a fix to our powernv cpuidle driver. Then there's a series
touching mm, x86 and fs/proc/task_mmu.c, which cleans up some details
around pkey support. It was ack'ed/reviewed by Ingo & Dave and has
been in next for several weeks.
Thanks to: Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Al
Viro, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Arnd
Bergmann, Balbir Singh, Cédric Le Goater, Christophe Leroy, Christophe
Lombard, Colin Ian King, Dave Hansen, Fabio Estevam, Finn Thain,
Frederic Barrat, Gautham R. Shenoy, Haren Myneni, Hari Bathini, Ingo
Molnar, Jonathan Neuschäfer, Josh Poimboeuf, Kamalesh Babulal,
Madhavan Srinivasan, Mahesh Salgaonkar, Mark Greer, Mathieu Malaterre,
Matthew Wilcox, Michael Neuling, Michal Suchanek, Naveen N. Rao,
Nicholas Piggin, Nicolai Stange, Olof Johansson, Paul Gortmaker, Paul
Mackerras, Peter Rosin, Pridhiviraj Paidipeddi, Ram Pai, Rashmica
Gupta, Ravi Bangoria, Russell Currey, Sam Bobroff, Samuel
Mendoza-Jonas, Segher Boessenkool, Shilpasri G Bhat, Simon Guo,
Souptick Joarder, Stewart Smith, Thiago Jung Bauermann, Torsten Duwe,
Vaibhav Jain, Wei Yongjun, Wolfram Sang, Yisheng Xie, YueHaibing"
* tag 'powerpc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (251 commits)
powerpc/64s/radix: Fix missing ptesync in flush_cache_vmap
cpuidle: powernv: Fix promotion from snooze if next state disabled
powerpc: fix build failure by disabling attribute-alias warning in pci_32
ocxl: Fix missing unlock on error in afu_ioctl_enable_p9_wait()
powerpc-opal: fix spelling mistake "Uniterrupted" -> "Uninterrupted"
powerpc: fix spelling mistake: "Usupported" -> "Unsupported"
powerpc/pkeys: Detach execute_only key on !PROT_EXEC
powerpc/powernv: copy/paste - Mask SO bit in CR
powerpc: Remove core support for Marvell mv64x60 hostbridges
powerpc/boot: Remove core support for Marvell mv64x60 hostbridges
powerpc/boot: Remove support for Marvell mv64x60 i2c controller
powerpc/boot: Remove support for Marvell MPSC serial controller
powerpc/embedded6xx: Remove C2K board support
powerpc/lib: optimise PPC32 memcmp
powerpc/lib: optimise 32 bits __clear_user()
powerpc/time: inline arch_vtime_task_switch()
powerpc/Makefile: set -mcpu=860 flag for the 8xx
powerpc: Implement csum_ipv6_magic in assembly
powerpc/32: Optimise __csum_partial()
powerpc/lib: Adjust .balign inside string functions for PPC32
...
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In order for a userspace AFU driver to call the POWER9 specific
OCXL_IOCTL_ENABLE_P9_WAIT, it needs to verify that it can actually
make that call.
Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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In order to successfully issue as_notify, an AFU needs to know the TID
to notify, which in turn means that this information should be
available in userspace so it can be communicated to the AFU.
Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
"The most interesting part of this update is user namespace support,
mostly done by Eric Biederman. This enables safe unprivileged fuse
mounts within a user namespace.
There are also a couple of fixes for bugs found by syzbot and
miscellaneous fixes and cleanups"
* tag 'fuse-update-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: don't keep dead fuse_conn at fuse_fill_super().
fuse: fix control dir setup and teardown
fuse: fix congested state leak on aborted connections
fuse: Allow fully unprivileged mounts
fuse: Ensure posix acls are translated outside of init_user_ns
fuse: add writeback documentation
fuse: honor AT_STATX_FORCE_SYNC
fuse: honor AT_STATX_DONT_SYNC
fuse: Restrict allow_other to the superblock's namespace or a descendant
fuse: Support fuse filesystems outside of init_user_ns
fuse: Fail all requests with invalid uids or gids
fuse: Remove the buggy retranslation of pids in fuse_dev_do_read
fuse: return -ECONNABORTED on /dev/fuse read after abort
fuse: atomic_o_trunc should truncate pagecache
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Currently the userspace has no way of knowing whether the fuse
connection ended because of umount or abort via sysfs. It makes it hard
for filesystems to free the mountpoint after abort without worrying
about removing some new mount.
The patch fixes it by returning different errors when userspace reads
from /dev/fuse (-ENODEV for umount and -ECONNABORTED for abort).
Add a new capability flag FUSE_ABORT_ERROR. If set and the connection is
gone because of sysfs abort, reading from the device will return
-ECONNABORTED.
Signed-off-by: Szymon Lukasz <noh4hss@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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Pull networking updates from David Miller:
1) Add Maglev hashing scheduler to IPVS, from Inju Song.
2) Lots of new TC subsystem tests from Roman Mashak.
3) Add TCP zero copy receive and fix delayed acks and autotuning with
SO_RCVLOWAT, from Eric Dumazet.
4) Add XDP_REDIRECT support to mlx5 driver, from Jesper Dangaard
Brouer.
5) Add ttl inherit support to vxlan, from Hangbin Liu.
6) Properly separate ipv6 routes into their logically independant
components. fib6_info for the routing table, and fib6_nh for sets of
nexthops, which thus can be shared. From David Ahern.
7) Add bpf_xdp_adjust_tail helper, which can be used to generate ICMP
messages from XDP programs. From Nikita V. Shirokov.
8) Lots of long overdue cleanups to the r8169 driver, from Heiner
Kallweit.
9) Add BTF ("BPF Type Format"), from Martin KaFai Lau.
10) Add traffic condition monitoring to iwlwifi, from Luca Coelho.
11) Plumb extack down into fib_rules, from Roopa Prabhu.
12) Add Flower classifier offload support to igb, from Vinicius Costa
Gomes.
13) Add UDP GSO support, from Willem de Bruijn.
14) Add documentation for eBPF helpers, from Quentin Monnet.
15) Add TLS tx offload to mlx5, from Ilya Lesokhin.
16) Allow applications to be given the number of bytes available to read
on a socket via a control message returned from recvmsg(), from
Soheil Hassas Yeganeh.
17) Add x86_32 eBPF JIT compiler, from Wang YanQing.
18) Add AF_XDP sockets, with zerocopy support infrastructure as well.
From Björn Töpel.
19) Remove indirect load support from all of the BPF JITs and handle
these operations in the verifier by translating them into native BPF
instead. From Daniel Borkmann.
20) Add GRO support to ipv6 gre tunnels, from Eran Ben Elisha.
21) Allow XDP programs to do lookups in the main kernel routing tables
for forwarding. From David Ahern.
22) Allow drivers to store hardware state into an ELF section of kernel
dump vmcore files, and use it in cxgb4. From Rahul Lakkireddy.
23) Various RACK and loss detection improvements in TCP, from Yuchung
Cheng.
24) Add TCP SACK compression, from Eric Dumazet.
25) Add User Mode Helper support and basic bpfilter infrastructure, from
Alexei Starovoitov.
26) Support ports and protocol values in RTM_GETROUTE, from Roopa
Prabhu.
27) Support bulking in ->ndo_xdp_xmit() API, from Jesper Dangaard
Brouer.
28) Add lots of forwarding selftests, from Petr Machata.
29) Add generic network device failover driver, from Sridhar Samudrala.
* ra.kernel.org:/pub/scm/linux/kernel/git/davem/net-next: (1959 commits)
strparser: Add __strp_unpause and use it in ktls.
rxrpc: Fix terminal retransmission connection ID to include the channel
net: hns3: Optimize PF CMDQ interrupt switching process
net: hns3: Fix for VF mailbox receiving unknown message
net: hns3: Fix for VF mailbox cannot receiving PF response
bnx2x: use the right constant
Revert "net: sched: cls: Fix offloading when ingress dev is vxlan"
net: dsa: b53: Fix for brcm tag issue in Cygnus SoC
enic: fix UDP rss bits
netdev-FAQ: clarify DaveM's position for stable backports
rtnetlink: validate attributes in do_setlink()
mlxsw: Add extack messages for port_{un, }split failures
netdevsim: Add extack error message for devlink reload
devlink: Add extack to reload and port_{un, }split operations
net: metrics: add proper netlink validation
ipmr: fix error path when ipmr_new_table fails
ip6mr: only set ip6mr_table from setsockopt when ip6mr_new_table succeeds
net: hns3: remove unused hclgevf_cfg_func_mta_filter
netfilter: provide udp*_lib_lookup for nf_tproxy
qed*: Utilize FW 8.37.2.0
...
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