| Commit message (Collapse) | Author | Age | Files | Lines |
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Fix RTT determination to be able to use any type of ACK as the response
from which RTT can be calculated provided its ack.serial is non-zero and
matches the serial number of an outgoing DATA or ACK packet. This
shouldn't be limited to REQUESTED-type ACKs as these can have other types
substituted for them for things like duplicate or out-of-order packets.
Fixes: 4700c4d80b7b ("rxrpc: Fix loss of RTT samples due to interposed ACK")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: linux-afs@lists.infradead.org
cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
"Many singleton patches against the MM code. The patch series which are
included in this merge do the following:
- Kemeng Shi has contributed some compation maintenance work in the
series 'Fixes and cleanups to compaction'
- Joel Fernandes has a patchset ('Optimize mremap during mutual
alignment within PMD') which fixes an obscure issue with mremap()'s
pagetable handling during a subsequent exec(), based upon an
implementation which Linus suggested
- More DAMON/DAMOS maintenance and feature work from SeongJae Park i
the following patch series:
mm/damon: misc fixups for documents, comments and its tracepoint
mm/damon: add a tracepoint for damos apply target regions
mm/damon: provide pseudo-moving sum based access rate
mm/damon: implement DAMOS apply intervals
mm/damon/core-test: Fix memory leaks in core-test
mm/damon/sysfs-schemes: Do DAMOS tried regions update for only one apply interval
- In the series 'Do not try to access unaccepted memory' Adrian
Hunter provides some fixups for the recently-added 'unaccepted
memory' feature. To increase the feature's checking coverage. 'Plug
a few gaps where RAM is exposed without checking if it is
unaccepted memory'
- In the series 'cleanups for lockless slab shrink' Qi Zheng has done
some maintenance work which is preparation for the lockless slab
shrinking code
- Qi Zheng has redone the earlier (and reverted) attempt to make slab
shrinking lockless in the series 'use refcount+RCU method to
implement lockless slab shrink'
- David Hildenbrand contributes some maintenance work for the rmap
code in the series 'Anon rmap cleanups'
- Kefeng Wang does more folio conversions and some maintenance work
in the migration code. Series 'mm: migrate: more folio conversion
and unification'
- Matthew Wilcox has fixed an issue in the buffer_head code which was
causing long stalls under some heavy memory/IO loads. Some cleanups
were added on the way. Series 'Add and use bdev_getblk()'
- In the series 'Use nth_page() in place of direct struct page
manipulation' Zi Yan has fixed a potential issue with the direct
manipulation of hugetlb page frames
- In the series 'mm: hugetlb: Skip initialization of gigantic tail
struct pages if freed by HVO' has improved our handling of gigantic
pages in the hugetlb vmmemmep optimizaton code. This provides
significant boot time improvements when significant amounts of
gigantic pages are in use
- Matthew Wilcox has sent the series 'Small hugetlb cleanups' - code
rationalization and folio conversions in the hugetlb code
- Yin Fengwei has improved mlock()'s handling of large folios in the
series 'support large folio for mlock'
- In the series 'Expose swapcache stat for memcg v1' Liu Shixin has
added statistics for memcg v1 users which are available (and
useful) under memcg v2
- Florent Revest has enhanced the MDWE (Memory-Deny-Write-Executable)
prctl so that userspace may direct the kernel to not automatically
propagate the denial to child processes. The series is named 'MDWE
without inheritance'
- Kefeng Wang has provided the series 'mm: convert numa balancing
functions to use a folio' which does what it says
- In the series 'mm/ksm: add fork-exec support for prctl' Stefan
Roesch makes is possible for a process to propagate KSM treatment
across exec()
- Huang Ying has enhanced memory tiering's calculation of memory
distances. This is used to permit the dax/kmem driver to use 'high
bandwidth memory' in addition to Optane Data Center Persistent
Memory Modules (DCPMM). The series is named 'memory tiering:
calculate abstract distance based on ACPI HMAT'
- In the series 'Smart scanning mode for KSM' Stefan Roesch has
optimized KSM by teaching it to retain and use some historical
information from previous scans
- Yosry Ahmed has fixed some inconsistencies in memcg statistics in
the series 'mm: memcg: fix tracking of pending stats updates
values'
- In the series 'Implement IOCTL to get and optionally clear info
about PTEs' Peter Xu has added an ioctl to /proc/<pid>/pagemap
which permits us to atomically read-then-clear page softdirty
state. This is mainly used by CRIU
- Hugh Dickins contributed the series 'shmem,tmpfs: general
maintenance', a bunch of relatively minor maintenance tweaks to
this code
- Matthew Wilcox has increased the use of the VMA lock over
file-backed page faults in the series 'Handle more faults under the
VMA lock'. Some rationalizations of the fault path became possible
as a result
- In the series 'mm/rmap: convert page_move_anon_rmap() to
folio_move_anon_rmap()' David Hildenbrand has implemented some
cleanups and folio conversions
- In the series 'various improvements to the GUP interface' Lorenzo
Stoakes has simplified and improved the GUP interface with an eye
to providing groundwork for future improvements
- Andrey Konovalov has sent along the series 'kasan: assorted fixes
and improvements' which does those things
- Some page allocator maintenance work from Kemeng Shi in the series
'Two minor cleanups to break_down_buddy_pages'
- In thes series 'New selftest for mm' Breno Leitao has developed
another MM self test which tickles a race we had between madvise()
and page faults
- In the series 'Add folio_end_read' Matthew Wilcox provides cleanups
and an optimization to the core pagecache code
- Nhat Pham has added memcg accounting for hugetlb memory in the
series 'hugetlb memcg accounting'
- Cleanups and rationalizations to the pagemap code from Lorenzo
Stoakes, in the series 'Abstract vma_merge() and split_vma()'
- Audra Mitchell has fixed issues in the procfs page_owner code's new
timestamping feature which was causing some misbehaviours. In the
series 'Fix page_owner's use of free timestamps'
- Lorenzo Stoakes has fixed the handling of new mappings of sealed
files in the series 'permit write-sealed memfd read-only shared
mappings'
- Mike Kravetz has optimized the hugetlb vmemmap optimization in the
series 'Batch hugetlb vmemmap modification operations'
- Some buffer_head folio conversions and cleanups from Matthew Wilcox
in the series 'Finish the create_empty_buffers() transition'
- As a page allocator performance optimization Huang Ying has added
automatic tuning to the allocator's per-cpu-pages feature, in the
series 'mm: PCP high auto-tuning'
- Roman Gushchin has contributed the patchset 'mm: improve
performance of accounted kernel memory allocations' which improves
their performance by ~30% as measured by a micro-benchmark
- folio conversions from Kefeng Wang in the series 'mm: convert page
cpupid functions to folios'
- Some kmemleak fixups in Liu Shixin's series 'Some bugfix about
kmemleak'
- Qi Zheng has improved our handling of memoryless nodes by keeping
them off the allocation fallback list. This is done in the series
'handle memoryless nodes more appropriately'
- khugepaged conversions from Vishal Moola in the series 'Some
khugepaged folio conversions'"
[ bcachefs conflicts with the dynamically allocated shrinkers have been
resolved as per Stephen Rothwell in
https://lore.kernel.org/all/20230913093553.4290421e@canb.auug.org.au/
with help from Qi Zheng.
The clone3 test filtering conflict was half-arsed by yours truly ]
* tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (406 commits)
mm/damon/sysfs: update monitoring target regions for online input commit
mm/damon/sysfs: remove requested targets when online-commit inputs
selftests: add a sanity check for zswap
Documentation: maple_tree: fix word spelling error
mm/vmalloc: fix the unchecked dereference warning in vread_iter()
zswap: export compression failure stats
Documentation: ubsan: drop "the" from article title
mempolicy: migration attempt to match interleave nodes
mempolicy: mmap_lock is not needed while migrating folios
mempolicy: alloc_pages_mpol() for NUMA policy without vma
mm: add page_rmappable_folio() wrapper
mempolicy: remove confusing MPOL_MF_LAZY dead code
mempolicy: mpol_shared_policy_init() without pseudo-vma
mempolicy trivia: use pgoff_t in shared mempolicy tree
mempolicy trivia: slightly more consistent naming
mempolicy trivia: delete those ancient pr_debug()s
mempolicy: fix migrate_pages(2) syscall return nr_failed
kernfs: drop shared NUMA mempolicy hooks
hugetlbfs: drop shared NUMA mempolicy pretence
mm/damon/sysfs-test: add a unit test for damon_sysfs_set_targets()
...
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Add nr_split to trace_mm_migrate_pages for large folio (including THP)
split events.
[akpm@linux-foundation.org: cleanup per Huang, Ying]
Link: https://lkml.kernel.org/r/20231017163129.2025214-2-zi.yan@sent.com
Signed-off-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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damos_before_apply tracepoint is exposing access rate of DAMON regions
using nr_accesses field of regions, which was actually used by DAMOS in
the past. However, it has changed to use nr_accesses_bp instead. Update
the tracepoint to expose the value that DAMOS is really using.
Note that it doesn't expose the value as is in the basis point, but after
converting it to the natural number by dividing it by 10,000. Therefore
this change doesn't make user-visible behavioral differences.
Link: https://lkml.kernel.org/r/20230916020945.47296-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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This isolate_mode_t flag is effectively unused since 89f6c88a6ab4 ("mm:
__isolate_lru_page_prepare() in isolate_migratepages_block()") as
sc->may_unmap is now checked directly (and only node_reclaim has a mode
that sets it to 0). The last remaining place is mm_vmscan_lru_isolate
tracepoint for the isolate_mode parameter. That one was mainly used to
indicate the active/inactive mode, which the trace-vmscan-postprocess.pl
script consumed, but that got silently broken. After fixing the script by
the previous patch, it does not need the isolate_mode anymore. So just
remove the parameter and with that the whole ISOLATE_UNMAPPED flag.
Link: https://lkml.kernel.org/r/20230914131637.12204-4-vbabka@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "mm/damon: add a tracepoint for damos apply target regions",
v2.
DAMON provides damon_aggregated tracepoint to let users record full
monitoring results. Sometimes, users need to record monitoring results of
specific pattern. DAMOS tried regions directory of DAMON sysfs interface
allows it, but the interface is mainly designed for snapshots and
therefore would be inefficient for such recording. Implement yet another
tracepoint for efficient support of the usecase.
This patch (of 2):
DAMON provides damon_aggregated tracepoint, which exposes details of each
region and its access monitoring results. It is useful for getting whole
monitoring results, e.g., for recording purposes.
For investigations of DAMOS, DAMON Sysfs interface provides DAMOS
statistics and tried_regions directory. But, those provides only
statistics and snapshots. If the scheme is frequently applied and if the
user needs to know every detail of DAMOS behavior, the snapshot-based
interface could be insufficient and expensive.
As a last resort, userspace users need to record the all monitoring
results via damon_aggregated tracepoint and simulate how DAMOS would
worked. It is unnecessarily complicated. DAMON kernel API users,
meanwhile, can do that easily via before_damos_apply() callback field of
'struct damon_callback', though.
Add a tracepoint that will be called just after before_damos_apply()
callback for more convenient investigations of DAMOS. The tracepoint
exposes all details about each regions, similar to damon_aggregated
tracepoint.
Please note that DAMOS is currently not only for memory management but
also for query-like efficient monitoring results retrievals (when 'stat'
action is used). Until now, only statistics or snapshots were supported.
Addition of this tracepoint allows efficient full recording of DAMOS-based
filtered monitoring results.
Link: https://lkml.kernel.org/r/20230913022050.2109-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20230913022050.2109-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> [tracing]
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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tracepoint
damon_aggregateed tracepoint is receiving 'struct target *', but doesn't
use it. Remove it from the prototype.
Link: https://lkml.kernel.org/r/20230907022929.91361-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, megaraid_sas, lpfc, target, ibmvfc,
scsi_debug) plus the usual assorted minor fixes and updates.
The major change this time around is a prep patch for rethreading of
the driver reset handler API not to take a scsi_cmd structure which
starts to reduce various drivers' dependence on scsi_cmd in error
handling"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (132 commits)
scsi: ufs: core: Leave space for '\0' in utf8 desc string
scsi: ufs: core: Conversion to bool not necessary
scsi: ufs: core: Fix race between force complete and ISR
scsi: megaraid: Fix up debug message in megaraid_abort_and_reset()
scsi: aic79xx: Fix up NULL command in ahd_done()
scsi: message: fusion: Initialize return value in mptfc_bus_reset()
scsi: mpt3sas: Fix loop logic
scsi: snic: Remove useless code in snic_dr_clean_pending_req()
scsi: core: Add comment to target_destroy in scsi_host_template
scsi: core: Clean up scsi_dev_queue_ready()
scsi: pmcraid: Add missing scsi_device_put() in pmcraid_eh_target_reset_handler()
scsi: target: core: Fix kernel-doc comment
scsi: pmcraid: Fix kernel-doc comment
scsi: core: Handle depopulation and restoration in progress
scsi: ufs: core: Add support for parsing OPP
scsi: ufs: core: Add OPP support for scaling clocks and regulators
scsi: ufs: dt-bindings: common: Add OPP table
scsi: scsi_debug: Add param to control sdev's allow_restart
scsi: scsi_debug: Add debugfs interface to fail target reset
scsi: scsi_debug: Add new error injection type: Reset LUN failed
...
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The logical unit information is missing from the UFS command tracing
output. Although the device name is logged, e.g. 13200000.ufs, this name
does not include logical unit information. Hence this patch that replaces
the device name with the SCSI ID in the tracing output. An example of
tracing output with this patch applied:
kworker/8:0H-80 [008] ..... 89.106063: ufshcd_command: send_req: 0:0:0:4: tag: 10, DB: 0x7ffffbff, size: 524288, IS: 0, LBA: 1085538, opcode: 0x8a (WRITE_16), group_id: 0x0
dd-4225 [000] d.h.. 89.106219: ufshcd_command: complete_rsp: 0:0:0:4: tag: 11, DB: 0x7ffff7ff, size: 524288, IS: 0, LBA: 1081728, opcode: 0x8a (WRITE_16), group_id: 0x0
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230907183739.905938-1-bvanassche@acm.org
Reviewed-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull ia64 removal and asm-generic updates from Arnd Bergmann:
- The ia64 architecture gets its well-earned retirement as planned,
now that there is one last (mostly) working release that will be
maintained as an LTS kernel.
- The architecture specific system call tables are updated for the
added map_shadow_stack() syscall and to remove references to the
long-gone sys_lookup_dcookie() syscall.
* tag 'asm-generic-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
hexagon: Remove unusable symbols from the ptrace.h uapi
asm-generic: Fix spelling of architecture
arch: Reserve map_shadow_stack() syscall number for all architectures
syscalls: Cleanup references to sys_lookup_dcookie()
Documentation: Drop or replace remaining mentions of IA64
lib/raid6: Drop IA64 support
Documentation: Drop IA64 from feature descriptions
kernel: Drop IA64 support from sig_fault handlers
arch: Remove Itanium (IA-64) architecture
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The Itanium architecture is obsolete, and an informal survey [0] reveals
that any residual use of Itanium hardware in production is mostly HP-UX
or OpenVMS based. The use of Linux on Itanium appears to be limited to
enthusiasts that occasionally boot a fresh Linux kernel to see whether
things are still working as intended, and perhaps to churn out some
distro packages that are rarely used in practice.
None of the original companies behind Itanium still produce or support
any hardware or software for the architecture, and it is listed as
'Orphaned' in the MAINTAINERS file, as apparently, none of the engineers
that contributed on behalf of those companies (nor anyone else, for that
matter) have been willing to support or maintain the architecture
upstream or even be responsible for applying the odd fix. The Intel
firmware team removed all IA-64 support from the Tianocore/EDK2
reference implementation of EFI in 2018. (Itanium is the original
architecture for which EFI was developed, and the way Linux supports it
deviates significantly from other architectures.) Some distros, such as
Debian and Gentoo, still maintain [unofficial] ia64 ports, but many have
dropped support years ago.
While the argument is being made [1] that there is a 'for the common
good' angle to being able to build and run existing projects such as the
Grid Community Toolkit [2] on Itanium for interoperability testing, the
fact remains that none of those projects are known to be deployed on
Linux/ia64, and very few people actually have access to such a system in
the first place. Even if there were ways imaginable in which Linux/ia64
could be put to good use today, what matters is whether anyone is
actually doing that, and this does not appear to be the case.
There are no emulators widely available, and so boot testing Itanium is
generally infeasible for ordinary contributors. GCC still supports IA-64
but its compile farm [3] no longer has any IA-64 machines. GLIBC would
like to get rid of IA-64 [4] too because it would permit some overdue
code cleanups. In summary, the benefits to the ecosystem of having IA-64
be part of it are mostly theoretical, whereas the maintenance overhead
of keeping it supported is real.
So let's rip off the band aid, and remove the IA-64 arch code entirely.
This follows the timeline proposed by the Debian/ia64 maintainer [5],
which removes support in a controlled manner, leaving IA-64 in a known
good state in the most recent LTS release. Other projects will follow
once the kernel support is removed.
[0] https://lore.kernel.org/all/CAMj1kXFCMh_578jniKpUtx_j8ByHnt=s7S+yQ+vGbKt9ud7+kQ@mail.gmail.com/
[1] https://lore.kernel.org/all/0075883c-7c51-00f5-2c2d-5119c1820410@web.de/
[2] https://gridcf.org/gct-docs/latest/index.html
[3] https://cfarm.tetaneutral.net/machines/list/
[4] https://lore.kernel.org/all/87bkiilpc4.fsf@mid.deneb.enyo.de/
[5] https://lore.kernel.org/all/ff58a3e76e5102c94bb5946d99187b358def688a.camel@physik.fu-berlin.de/
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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Pull drm updates from Dave Airlie:
"Highlights:
- AMD adds some more upcoming HW platforms
- Intel made Meteorlake stable and started adding Lunarlake
- nouveau has a bunch of display rework in prepartion for the NVIDIA
GSP firmware support
- msm adds a7xx support
- habanalabs has finished migration to accel subsystem
Detail summary:
kernel:
- add initial vmemdup-user-array
core:
- fix platform remove() to return void
- drm_file owner updated to reflect owner
- move size calcs to drm buddy allocator
- let GPUVM build as a module
- allow variable number of run-queues in scheduler
edid:
- handle bad h/v sync_end in EDIDs
panfrost:
- add Boris as maintainer
fbdev:
- use fb_ops helpers more
- only allow logo use from fbcon
- rename fb_pgproto to pgprot_framebuffer
- add HPD state to drm_connector_oob_hotplug_event
- convert to fbdev i/o mem helpers
i915:
- Enable meteorlake by default
- Early Xe2 LPD/Lunarlake display enablement
- Rework subplatforms into IP version checks
- GuC based TLB invalidation for Meteorlake
- Display rework for future Xe driver integration
- LNL FBC features
- LNL display feature capability reads
- update recommended fw versions for DG2+
- drop fastboot module parameter
- added deviceid for Arrowlake-S
- drop preproduction workarounds
- don't disable preemption for resets
- cleanup inlines in headers
- PXP firmware loading fix
- Fix sg list lengths
- DSC PPS state readout/verification
- Add more RPL P/U PCI IDs
- Add new DG2-G12 stepping
- DP enhanced framing support to state checker
- Improve shared link bandwidth management
- stop using GEM macros in display code
- refactor related code into display code
- locally enable W=1 warnings
- remove PSR watchdog timers on LNL
amdgpu:
- RAS/FRU EEPROM updatse
- IP discovery updatses
- GC 11.5 support
- DCN 3.5 support
- VPE 6.1 support
- NBIO 7.11 support
- DML2 support
- lots of IP updates
- use flexible arrays for bo list handling
- W=1 fixes
- Enable seamless boot in more cases
- Enable context type property for HDMI
- Rework GPUVM TLB flushing
- VCN IB start/size alignment fixes
amdkfd:
- GC 10/11 fixes
- GC 11.5 support
- use partial migration in GPU faults
radeon:
- W=1 Fixes
- fix some possible buffer overflow/NULL derefs
nouveau:
- update uapi for NO_PREFETCH
- scheduler/fence fixes
- rework suspend/resume for GSP-RM
- rework display in preparation for GSP-RM
habanalabs:
- uapi: expose tsc clock
- uapi: block access to eventfd through control device
- uapi: force dma-buf export to PAGE_SIZE alignments
- complete move to accel subsystem
- move firmware interface include files
- perform hard reset on PCIe AXI drain event
- optimise user interrupt handling
msm:
- DP: use existing helpers for DPCD
- DPU: interrupts reworked
- gpu: a7xx (a730/a740) support
- decouple msm_drv from kms for headless devices
mediatek:
- MT8188 dsi/dp/edp support
- DDP GAMMA - 12 bit LUT support
- connector dynamic selection capability
rockchip:
- rv1126 mipi-dsi/vop support
- add planar formats
ast:
- rename constants
panels:
- Mitsubishi AA084XE01
- JDI LPM102A188A
- LTK050H3148W-CTA6
ivpu:
- power management fixes
qaic:
- add detach slice bo api
komeda:
- add NV12 writeback
tegra:
- support NVSYNC/NHSYNC
- host1x suspend fixes
ili9882t:
- separate into own driver"
* tag 'drm-next-2023-10-31-1' of git://anongit.freedesktop.org/drm/drm: (1803 commits)
drm/amdgpu: Remove unused variables from amdgpu_show_fdinfo
drm/amdgpu: Remove duplicate fdinfo fields
drm/amd/amdgpu: avoid to disable gfxhub interrupt when driver is unloaded
drm/amdgpu: Add EXT_COHERENT support for APU and NUMA systems
drm/amdgpu: Retrieve CE count from ce_count_lo_chip in EccInfo table
drm/amdgpu: Identify data parity error corrected in replay mode
drm/amdgpu: Fix typo in IP discovery parsing
drm/amd/display: fix S/G display enablement
drm/amdxcp: fix amdxcp unloads incompletely
drm/amd/amdgpu: fix the GPU power print error in pm info
drm/amdgpu: Use pcie domain of xcc acpi objects
drm/amd: check num of link levels when update pcie param
drm/amdgpu: Add a read to GFX v9.4.3 ring test
drm/amd/pm: call smu_cmn_get_smc_version in is_mode1_reset_supported.
drm/amdgpu: get RAS poison status from DF v4_6_2
drm/amdgpu: Use discovery table's subrevision
drm/amd/display: 3.2.256
drm/amd/display: add interface to query SubVP status
drm/amd/display: Read before writing Backlight Mode Set Register
drm/amd/display: Disable SYMCLK32_SE RCO on DCN314
...
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This is needed to add the msm pr which is based on a higher base.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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- Update copyright years
- Add missing newline at end of file
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Ofir Bitton <obitton@habana.ai>
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In order to get a full picture of DMA mappings (e.g. to track DMAR
errors), DMA mappings APIs should be covered.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Ilpo Järvinen:
- asus-wmi: Support for screenpad and solve brightness key press
duplication
- int3472: Eliminate the last use of deprecated GPIO functions
- mlxbf-pmc: New HW support
- msi-ec: Support new EC configurations
- thinkpad_acpi: Support reading aux MAC address during passthrough
- wmi: Fixes & improvements
- x86-android-tablets: Detection fix and avoid use of GPIO private APIs
- Debug & metrics interface improvements
- Miscellaneous cleanups / fixes / improvements
* tag 'platform-drivers-x86-v6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (80 commits)
platform/x86: inspur-platform-profile: Add platform profile support
platform/x86: thinkpad_acpi: Add battery quirk for Thinkpad X120e
platform/x86: wmi: Decouple WMI device removal from wmi_block_list
platform/x86: wmi: Fix opening of char device
platform/x86: wmi: Fix probe failure when failing to register WMI devices
platform/x86: wmi: Fix refcounting of WMI devices in legacy functions
platform/x86: wmi: Decouple probe deferring from wmi_block_list
platform/x86/amd/hsmp: Fix iomem handling
platform/x86: asus-wmi: Do not report brightness up/down keys when also reported by acpi_video
platform/x86: thinkpad_acpi: replace deprecated strncpy with memcpy
tools/power/x86/intel-speed-select: v1.18 release
tools/power/x86/intel-speed-select: Use cgroup isolate for CPU 0
tools/power/x86/intel-speed-select: Increase max CPUs in one request
tools/power/x86/intel-speed-select: Display error for core-power support
tools/power/x86/intel-speed-select: No TRL for non compute domains
tools/power/x86/intel-speed-select: turbo-mode enable disable swapped
tools/power/x86/intel-speed-select: Update help for TRL
tools/power/x86/intel-speed-select: Sanitize integer arguments
platform/x86: acer-wmi: Remove void function return
platform/x86/amd/pmc: Add dump_custom_stb module parameter
...
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Width of chunk related bitfields is ACTIVATE_SCAN and SCAN_STATUS MSRs
are different in newer IFS generation compared to gen0.
Make changes to scan test flow such that MSRs are populated
appropriately based on the generation supported by hardware.
Account for the 8/16 bit MSR bitfield width differences between gen0 and
newer generations for the scan test trace event too.
Signed-off-by: Jithu Joseph <jithu.joseph@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Pengfei Xu <pengfei.xu@intel.com>
Link: https://lore.kernel.org/r/20231005195137.3117166-5-jithu.joseph@intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Support usec resolution of TCP timestamps, enabled selectively by a
route attribute.
- Defer regular TCP ACK while processing socket backlog, try to send
a cumulative ACK at the end. Increase single TCP flow performance
on a 200Gbit NIC by 20% (100Gbit -> 120Gbit).
- The Fair Queuing (FQ) packet scheduler:
- add built-in 3 band prio / WRR scheduling
- support bypass if the qdisc is mostly idle (5% speed up for TCP RR)
- improve inactive flow reporting
- optimize the layout of structures for better cache locality
- Support TCP Authentication Option (RFC 5925, TCP-AO), a more modern
replacement for the old MD5 option.
- Add more retransmission timeout (RTO) related statistics to
TCP_INFO.
- Support sending fragmented skbs over vsock sockets.
- Make sure we send SIGPIPE for vsock sockets if socket was
shutdown().
- Add sysctl for ignoring lower limit on lifetime in Router
Advertisement PIO, based on an in-progress IETF draft.
- Add sysctl to control activation of TCP ping-pong mode.
- Add sysctl to make connection timeout in MPTCP configurable.
- Support rcvlowat and notsent_lowat on MPTCP sockets, to help apps
limit the number of wakeups.
- Support netlink GET for MDB (multicast forwarding), allowing user
space to request a single MDB entry instead of dumping the entire
table.
- Support selective FDB flushing in the VXLAN tunnel driver.
- Allow limiting learned FDB entries in bridges, prevent OOM attacks.
- Allow controlling via configfs netconsole targets which were
created via the kernel cmdline at boot, rather than via configfs at
runtime.
- Support multiple PTP timestamp event queue readers with different
filters.
- MCTP over I3C.
BPF:
- Add new veth-like netdevice where BPF program defines the logic of
the xmit routine. It can operate in L3 and L2 mode.
- Support exceptions - allow asserting conditions which should never
be true but are hard for the verifier to infer. With some extra
flexibility around handling of the exit / failure:
https://lwn.net/Articles/938435/
- Add support for local per-cpu kptr, allow allocating and storing
per-cpu objects in maps. Access to those objects operates on the
value for the current CPU.
This allows to deprecate local one-off implementations of per-CPU
storage like BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE maps.
- Extend cgroup BPF sockaddr hooks for UNIX sockets. The use case is
for systemd to re-implement the LogNamespace feature which allows
running multiple instances of systemd-journald to process the logs
of different services.
- Enable open-coded task_vma iteration, after maple tree conversion
made it hard to directly walk VMAs in tracing programs.
- Add open-coded task, css_task and css iterator support. One of the
use cases is customizable OOM victim selection via BPF.
- Allow source address selection with bpf_*_fib_lookup().
- Add ability to pin BPF timer to the current CPU.
- Prevent creation of infinite loops by combining tail calls and
fentry/fexit programs.
- Add missed stats for kprobes to retrieve the number of missed
kprobe executions and subsequent executions of BPF programs.
- Inherit system settings for CPU security mitigations.
- Add BPF v4 CPU instruction support for arm32 and s390x.
Changes to common code:
- overflow: add DEFINE_FLEX() for on-stack definition of structs with
flexible array members.
- Process doc update with more guidance for reviewers.
Driver API:
- Simplify locking in WiFi (cfg80211 and mac80211 layers), use wiphy
mutex in most places and remove a lot of smaller locks.
- Create a common DPLL configuration API. Allow configuring and
querying state of PLL circuits used for clock syntonization, in
network time distribution.
- Unify fragmented and full page allocation APIs in page pool code.
Let drivers be ignorant of PAGE_SIZE.
- Rework PHY state machine to avoid races with calls to phy_stop().
- Notify DSA drivers of MAC address changes on user ports, improve
correctness of offloads which depend on matching port MAC
addresses.
- Allow antenna control on injected WiFi frames.
- Reduce the number of variants of napi_schedule().
- Simplify error handling when composing devlink health messages.
Misc:
- A lot of KCSAN data race "fixes", from Eric.
- A lot of __counted_by() annotations, from Kees.
- A lot of strncpy -> strscpy and printf format fixes.
- Replace master/slave terminology with conduit/user in DSA drivers.
- Handful of KUnit tests for netdev and WiFi core.
Removed:
- AppleTalk COPS.
- AppleTalk ipddp.
- TI AR7 CPMAC Ethernet driver.
Drivers:
- Ethernet high-speed NICs:
- Intel (100G, ice, idpf):
- add a driver for the Intel E2000 IPUs
- make CRC/FCS stripping configurable
- cross-timestamping for E823 devices
- basic support for E830 devices
- use aux-bus for managing client drivers
- i40e: report firmware versions via devlink
- nVidia/Mellanox:
- support 4-port NICs
- increase max number of channels to 256
- optimize / parallelize SF creation flow
- Broadcom (bnxt):
- enhance NIC temperature reporting
- support PAM4 speeds and lane configuration
- Marvell OcteonTX2:
- PTP pulse-per-second output support
- enable hardware timestamping for VFs
- Solarflare/AMD:
- conntrack NAT offload and offload for tunnels
- Wangxun (ngbe/txgbe):
- expose HW statistics
- Pensando/AMD:
- support PCI level reset
- narrow down the condition under which skbs are linearized
- Netronome/Corigine (nfp):
- support CHACHA20-POLY1305 crypto in IPsec offload
- Ethernet NICs embedded, slower, virtual:
- Synopsys (stmmac):
- add Loongson-1 SoC support
- enable use of HW queues with no offload capabilities
- enable PPS input support on all 5 channels
- increase TX coalesce timer to 5ms
- RealTek USB (r8152): improve efficiency of Rx by using GRO frags
- xen: support SW packet timestamping
- add drivers for implementations based on TI's PRUSS (AM64x EVM)
- nVidia/Mellanox Ethernet datacenter switches:
- avoid poor HW resource use on Spectrum-4 by better block
selection for IPv6 multicast forwarding and ordering of blocks
in ACL region
- Ethernet embedded switches:
- Microchip:
- support configuring the drive strength for EMI compliance
- ksz9477: partial ACL support
- ksz9477: HSR offload
- ksz9477: Wake on LAN
- Realtek:
- rtl8366rb: respect device tree config of the CPU port
- Ethernet PHYs:
- support Broadcom BCM5221 PHYs
- TI dp83867: support hardware LED blinking
- CAN:
- add support for Linux-PHY based CAN transceivers
- at91_can: clean up and use rx-offload helpers
- WiFi:
- MediaTek (mt76):
- new sub-driver for mt7925 USB/PCIe devices
- HW wireless <> Ethernet bridging in MT7988 chips
- mt7603/mt7628 stability improvements
- Qualcomm (ath12k):
- WCN7850:
- enable 320 MHz channels in 6 GHz band
- hardware rfkill support
- enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS to
make scan faster
- read board data variant name from SMBIOS
- QCN9274: mesh support
- RealTek (rtw89):
- TDMA-based multi-channel concurrency (MCC)
- Silicon Labs (wfx):
- Remain-On-Channel (ROC) support
- Bluetooth:
- ISO: many improvements for broadcast support
- mark BCM4378/BCM4387 as BROKEN_LE_CODED
- add support for QCA2066
- btmtksdio: enable Bluetooth wakeup from suspend"
* tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1816 commits)
net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers
net: bpf: Use sockopt_lock_sock() in ip_sock_set_tos()
net: mana: Use xdp_set_features_flag instead of direct assignment
vxlan: Cleanup IFLA_VXLAN_PORT_RANGE entry in vxlan_get_size()
iavf: delete the iavf client interface
iavf: add a common function for undoing the interrupt scheme
iavf: use unregister_netdev
iavf: rely on netdev's own registered state
iavf: fix the waiting time for initial reset
iavf: in iavf_down, don't queue watchdog_task if comms failed
iavf: simplify mutex_trylock+sleep loops
iavf: fix comments about old bit locks
doc/netlink: Update schema to support cmd-cnt-name and cmd-max-name
tools: ynl: introduce option to process unknown attributes or types
ipvlan: properly track tx_errors
netdevsim: Block until all devices are released
nfp: using napi_build_skb() to replace build_skb()
net: dsa: microchip: ksz9477: Fix spelling mistake "Enery" -> "Energy"
net: dsa: microchip: Ensure Stable PME Pin State for Wake-on-LAN
net: dsa: microchip: Refactor switch shutdown routine for WoL preparation
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Cross-merge networking fixes after downstream PR.
net/mac80211/key.c
02e0e426a2fb ("wifi: mac80211: fix error path key leak")
2a8b665e6bcc ("wifi: mac80211: remove key_mtx")
7d6904bf26b9 ("Merge wireless into wireless-next")
https://lore.kernel.org/all/20231012113648.46eea5ec@canb.auug.org.au/
Adjacent changes:
drivers/net/ethernet/ti/Kconfig
a602ee3176a8 ("net: ethernet: ti: Fix mixed module-builtin object")
98bdeae9502b ("net: cpmac: remove driver to prepare for platform removal")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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SO_MAX_PACING_RATE setsockopt() does not need to hold
the socket lock, because sk->sk_pacing_rate readers
can run fine if the value is changed by other threads,
after adding READ_ONCE() accessors.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Cross-merge networking fixes after downstream PR.
No conflicts.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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This adds handling of MSG_ZEROCOPY flag on transmission path:
1) If this flag is set and zerocopy transmission is possible (enabled
in socket options and transport allows zerocopy), then non-linear
skb will be created and filled with the pages of user's buffer.
Pages of user's buffer are locked in memory by 'get_user_pages()'.
2) Replaces way of skb owning: instead of 'skb_set_owner_sk_safe()' it
calls 'skb_set_owner_w()'. Reason of this change is that
'__zerocopy_sg_from_iter()' increments 'sk_wmem_alloc' of socket, so
to decrease this field correctly, proper skb destructor is needed:
'sock_wfree()'. This destructor is set by 'skb_set_owner_w()'.
3) Adds new callback to 'struct virtio_transport': 'can_msgzerocopy'.
If this callback is set, then transport needs extra check to be able
to send provided number of buffers in zerocopy mode. Currently, the
only transport that needs this callback set is virtio, because this
transport adds new buffers to the virtio queue and we need to check,
that number of these buffers is less than size of the queue (it is
required by virtio spec). vhost and loopback transports don't need
this check.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP and CPU hotplug updates from Thomas Gleixner:
- Switch the smp_call_function*() @csd argument to call_single_data_t
type, which is a cache-line aligned typedef of the underlying struct
__call_single_data.
This ensures that the call data is not crossing a cacheline which
avoids bouncing an extra cache-line for the SMP function call
- Prevent offlining of the last housekeeping CPU when CPU isolation is
active.
Offlining the last housekeeping CPU makes no sense in general, but
also caused the scheduler to panic due to the empty CPU mask when
rebuilding the scheduler domains.
- Remove an unused CPU hotplug state
* tag 'smp-core-2023-10-29-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Don't offline the last non-isolated CPU
cpu/hotplug: Remove unused cpuhp_state CPUHP_AP_X86_VDSO_VMA_ONLINE
smp: Change function signatures to use call_single_data_t
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Pull in upstream to get the fixes so depending changes can be applied.
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call_single_data_t is a size-aligned typedef of struct __call_single_data.
This alignment is desirable in order to have smp_call_function*() avoid
bouncing an extra cacheline in case of an unaligned csd, given this
would hurt performance.
Since the removal of struct request->csd in commit 660e802c76c8
("blk-mq: use percpu csd to remote complete instead of per-rq csd") there
are no current users of smp_call_function*() with unaligned csd.
Change every 'struct __call_single_data' function parameter to
'call_single_data_t', so we have warnings if any new code tries to
introduce an smp_call_function*() call with unaligned csd.
Signed-off-by: Leonardo Bras <leobras@redhat.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230831063129.335425-1-leobras@redhat.com
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Fair scheduler (SCHED_OTHER) improvements:
- Remove the old and now unused SIS_PROP code & option
- Scan cluster before LLC in the wake-up path
- Use candidate prev/recent_used CPU if scanning failed for cluster
wakeup
NUMA scheduling improvements:
- Improve the VMA access-PID code to better skip/scan VMAs
- Extend tracing to cover VMA-skipping decisions
- Improve/fix the recently introduced sched_numa_find_nth_cpu() code
- Generalize numa_map_to_online_node()
Energy scheduling improvements:
- Remove the EM_MAX_COMPLEXITY limit
- Add tracepoints to track energy computation
- Make the behavior of the 'sched_energy_aware' sysctl more
consistent
- Consolidate and clean up access to a CPU's max compute capacity
- Fix uclamp code corner cases
RT scheduling improvements:
- Drive dl_rq->overloaded with dl_rq->pushable_dl_tasks updates
- Drive the ->rto_mask with rt_rq->pushable_tasks updates
Scheduler scalability improvements:
- Rate-limit updates to tg->load_avg
- On x86 disable IBRS when CPU is offline to improve single-threaded
performance
- Micro-optimize in_task() and in_interrupt()
- Micro-optimize the PSI code
- Avoid updating PSI triggers and ->rtpoll_total when there are no
state changes
Core scheduler infrastructure improvements:
- Use saved_state to reduce some spurious freezer wakeups
- Bring in a handful of fast-headers improvements to scheduler
headers
- Make the scheduler UAPI headers more widely usable by user-space
- Simplify the control flow of scheduler syscalls by using lock
guards
- Fix sched_setaffinity() vs. CPU hotplug race
Scheduler debuggability improvements:
- Disallow writing invalid values to sched_rt_period_us
- Fix a race in the rq-clock debugging code triggering warnings
- Fix a warning in the bandwidth distribution code
- Micro-optimize in_atomic_preempt_off() checks
- Enforce that the tasklist_lock is held in for_each_thread()
- Print the TGID in sched_show_task()
- Remove the /proc/sys/kernel/sched_child_runs_first sysctl
... and misc cleanups & fixes"
* tag 'sched-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (82 commits)
sched/fair: Remove SIS_PROP
sched/fair: Use candidate prev/recent_used CPU if scanning failed for cluster wakeup
sched/fair: Scan cluster before scanning LLC in wake-up path
sched: Add cpus_share_resources API
sched/core: Fix RQCF_ACT_SKIP leak
sched/fair: Remove unused 'curr' argument from pick_next_entity()
sched/nohz: Update comments about NEWILB_KICK
sched/fair: Remove duplicate #include
sched/psi: Update poll => rtpoll in relevant comments
sched: Make PELT acronym definition searchable
sched: Fix stop_one_cpu_nowait() vs hotplug
sched/psi: Bail out early from irq time accounting
sched/topology: Rename 'DIE' domain to 'PKG'
sched/psi: Delete the 'update_total' function parameter from update_triggers()
sched/psi: Avoid updating PSI triggers and ->rtpoll_total when there are no state changes
sched/headers: Remove comment referring to rq::cpu_load, since this has been removed
sched/numa: Complete scanning of inactive VMAs when there is no alternative
sched/numa: Complete scanning of partial VMAs regardless of PID activity
sched/numa: Move up the access pid reset logic
sched/numa: Trace decisions related to skipping VMAs
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Pick up recent sched/urgent fixes merged upstream.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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VMAs are skipped if there is no recent fault activity but this represents
a chicken-and-egg problem as there may be no fault activity if the PTEs
are never updated to trap NUMA hints. There is an indirect reliance on
scanning to be forced early in the lifetime of a task but this may fail
to detect changes in phase behaviour. Force inactive VMAs to be scanned
when all other eligible VMAs have been updated within the same scan
sequence.
Test results in general look good with some changes in performance, both
negative and positive, depending on whether the additional scanning and
faulting was beneficial or not to the workload. The autonuma benchmark
workload NUMA01_THREADLOCAL was picked for closer examination. The workload
creates two processes with numerous threads and thread-local storage that
is zero-filled in a loop. It exercises the corner case where unrelated
threads may skip VMAs that are thread-local to another thread and still
has some VMAs that inactive while the workload executes.
The VMA skipping activity frequency with and without the patch:
6.6.0-rc2-sched-numabtrace-v1
=============================
649 reason=scan_delay
9,094 reason=unsuitable
48,915 reason=shared_ro
143,919 reason=inaccessible
193,050 reason=pid_inactive
6.6.0-rc2-sched-numabselective-v1
=============================
146 reason=seq_completed
622 reason=ignore_pid_inactive
624 reason=scan_delay
6,570 reason=unsuitable
16,101 reason=shared_ro
27,608 reason=inaccessible
41,939 reason=pid_inactive
Note that with the patch applied, the PID activity is ignored
(ignore_pid_inactive) to ensure a VMA with some activity is completely
scanned. In addition, a small number of VMAs are scanned when no other
eligible VMA is available during a single scan window (seq_completed).
The number of times a VMA is skipped due to no PID activity from the
scanning task (pid_inactive) drops dramatically. It is expected that
this will increase the number of PTEs updated for NUMA hinting faults
as well as hinting faults but these represent PTEs that would otherwise
have been missed. The tradeoff is scan+fault overhead versus improving
locality due to migration.
On a 2-socket Cascade Lake test machine, the time to complete the
workload is as follows;
6.6.0-rc2 6.6.0-rc2
sched-numabtrace-v1 sched-numabselective-v1
Min elsp-NUMA01_THREADLOCAL 174.22 ( 0.00%) 117.64 ( 32.48%)
Amean elsp-NUMA01_THREADLOCAL 175.68 ( 0.00%) 123.34 * 29.79%*
Stddev elsp-NUMA01_THREADLOCAL 1.20 ( 0.00%) 4.06 (-238.20%)
CoeffVar elsp-NUMA01_THREADLOCAL 0.68 ( 0.00%) 3.29 (-381.70%)
Max elsp-NUMA01_THREADLOCAL 177.18 ( 0.00%) 128.03 ( 27.74%)
The time to complete the workload is reduced by almost 30%:
6.6.0-rc2 6.6.0-rc2
sched-numabtrace-v1 sched-numabselective-v1 /
Duration User 91201.80 63506.64
Duration System 2015.53 1819.78
Duration Elapsed 1234.77 868.37
In this specific case, system CPU time was not increased but it's not
universally true.
From vmstat, the NUMA scanning and fault activity is as follows;
6.6.0-rc2 6.6.0-rc2
sched-numabtrace-v1 sched-numabselective-v1
Ops NUMA base-page range updates 64272.00 26374386.00
Ops NUMA PTE updates 36624.00 55538.00
Ops NUMA PMD updates 54.00 51404.00
Ops NUMA hint faults 15504.00 75786.00
Ops NUMA hint local faults % 14860.00 56763.00
Ops NUMA hint local percent 95.85 74.90
Ops NUMA pages migrated 1629.00 6469222.00
Both the number of PTE updates and hint faults is dramatically
increased. While this is superficially unfortunate, it represents
ranges that were simply skipped without the patch. As a result
of the scanning and hinting faults, many more pages were also
migrated but as the time to completion is reduced, the overhead
is offset by the gain.
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Raghavendra K T <raghavendra.kt@amd.com>
Link: https://lore.kernel.org/r/20231010083143.19593-7-mgorman@techsingularity.net
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NUMA Balancing skips VMAs when the current task has not trapped a NUMA
fault within the VMA. If the VMA is skipped then mm->numa_scan_offset
advances and a task that is trapping faults within the VMA may never
fully update PTEs within the VMA.
Force tasks to update PTEs for partially scanned PTEs. The VMA will
be tagged for NUMA hints by some task but this removes some of the
benefit of tracking PID activity within a VMA. A follow-on patch
will mitigate this problem.
The test cases and machines evaluated did not trigger the corner case so
the performance results are neutral with only small changes within the
noise from normal test-to-test variance. However, the next patch makes
the corner case easier to trigger.
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Raghavendra K T <raghavendra.kt@amd.com>
Link: https://lore.kernel.org/r/20231010083143.19593-6-mgorman@techsingularity.net
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NUMA balancing skips or scans VMAs for a variety of reasons. In preparation
for completing scans of VMAs regardless of PID access, trace the reasons
why a VMA was skipped. In a later patch, the tracing will be used to track
if a VMA was forcibly scanned.
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20231010083143.19593-4-mgorman@techsingularity.net
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the branch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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It was useful to track feec() placement decision and debug the spare
capacity and optimization issues vs uclamp_max.
Signed-off-by: Qais Yousef (Google) <qyousef@layalina.io>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230916232955.2099394-4-qyousef@layalina.io
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"New features:
- raid-stripe-tree
New tree for logical file extent mapping where the physical mapping
may not match on multiple devices. This is now used in zoned mode
to implement RAID0/RAID1* profiles, but can be used in non-zoned
mode as well. The support for RAID56 is in development and will
eventually fix the problems with the current implementation. This
is a backward incompatible feature and has to be enabled at mkfs
time.
- simple quota accounting (squota)
A simplified mode of qgroup that accounts all space on the initial
extent owners (a subvolume), the snapshots are then cheap to create
and delete. The deletion of snapshots in fully accounting qgroups
is a known CPU/IO performance bottleneck.
The squota is not suitable for the general use case but works well
for containers where the original subvolume exists for the whole
time. This is a backward incompatible feature as it needs extending
some structures, but can be enabled on an existing filesystem.
- temporary filesystem fsid (temp_fsid)
The fsid identifies a filesystem and is hard coded in the
structures, which disallows mounting the same fsid found on
different devices.
For a single device filesystem this is not strictly necessary, a
new temporary fsid can be generated on mount e.g. after a device is
cloned. This will be used by Steam Deck for root partition A/B
testing, or can be used for VM root images.
Other user visible changes:
- filesystems with partially finished metadata_uuid conversion cannot
be mounted anymore and the uuid fixup has to be done by btrfs-progs
(btrfstune).
Performance improvements:
- reduce reservations for checksum deletions (with enabled free space
tree by factor of 4), on a sample workload on file with many
extents the deletion time decreased by 12%
- make extent state merges more efficient during insertions, reduce
rb-tree iterations (run time of critical functions reduced by 5%)
Core changes:
- the integrity check functionality has been removed, this was a
debugging feature and removal does not affect other integrity
checks like checksums or tree-checker
- space reservation changes:
- more efficient delayed ref reservations, this avoids building up
too much work or overusing or exhausting the global block
reserve in some situations
- move delayed refs reservation to the transaction start time,
this prevents some ENOSPC corner cases related to exhaustion of
global reserve
- improvements in reducing excessive reservations for block group
items
- adjust overcommit logic in near full situations, account for one
more chunk to eventually allocate metadata chunk, this is mostly
relevant for small filesystems (<10GiB)
- single device filesystems are scanned but not registered (except
seed devices), this allows temp_fsid to work
- qgroup iterations do not need GFP_ATOMIC allocations anymore
- cleanups, refactoring, reduced data structure size, function
parameter simplifications, error handling fixes"
* tag 'for-6.7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (156 commits)
btrfs: open code timespec64 in struct btrfs_inode
btrfs: remove redundant log root tree index assignment during log sync
btrfs: remove redundant initialization of variable dirty in btrfs_update_time()
btrfs: sysfs: show temp_fsid feature
btrfs: disable the device add feature for temp-fsid
btrfs: disable the seed feature for temp-fsid
btrfs: update comment for temp-fsid, fsid, and metadata_uuid
btrfs: remove pointless empty log context list check when syncing log
btrfs: update comment for struct btrfs_inode::lock
btrfs: remove pointless barrier from btrfs_sync_file()
btrfs: add and use helpers for reading and writing last_trans_committed
btrfs: add and use helpers for reading and writing fs_info->generation
btrfs: add and use helpers for reading and writing log_transid
btrfs: add and use helpers for reading and writing last_log_commit
btrfs: support cloned-device mount capability
btrfs: add helper function find_fsid_by_disk
btrfs: stop reserving excessive space for block group item insertions
btrfs: stop reserving excessive space for block group item updates
btrfs: reorder btrfs_inode to fill gaps
btrfs: open code btrfs_ordered_inode_tree in btrfs_inode
...
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There are two callbacks defined in btrfs_work but only two actually make
use of them, otherwise there are NULLs. We can get rid of the freeing
callback making it a special case of the normal work. This reduces the
size of btrfs_work by 8 bytes, final layout:
struct btrfs_work {
btrfs_func_t func; /* 0 8 */
btrfs_ordered_func_t ordered_func; /* 8 8 */
struct work_struct normal_work; /* 16 32 */
struct list_head ordered_list; /* 48 16 */
/* --- cacheline 1 boundary (64 bytes) --- */
struct btrfs_workqueue * wq; /* 64 8 */
long unsigned int flags; /* 72 8 */
/* size: 80, cachelines: 2, members: 6 */
/* last cacheline: 16 bytes */
};
This in turn reduces size of other structures (on a release config):
- async_chunk 160 -> 152
- async_submit_bio 152 -> 144
- btrfs_async_delayed_work 104 -> 96
- btrfs_caching_control 176 -> 168
- btrfs_delalloc_work 144 -> 136
- btrfs_fs_info 3608 -> 3600
- btrfs_ordered_extent 440 -> 424
- btrfs_writepage_fixup 104 -> 96
Signed-off-by: David Sterba <dsterba@suse.com>
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Add trace events for raid-stripe-tree operations.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Pull nfsd updates from Chuck Lever:
"This release completes the SunRPC thread scheduler work that was begun
in v6.6. The scheduler can now find an svc thread to wake in constant
time and without a list walk. Thanks again to Neil Brown for this
overhaul.
Lorenzo Bianconi contributed infrastructure for a netlink-based NFSD
control plane. The long-term plan is to provide the same functionality
as found in /proc/fs/nfsd, plus some interesting additions, and then
migrate the NFSD user space utilities to netlink.
A long series to overhaul NFSD's NFSv4 operation encoding was applied
in this release. The goals are to bring this family of encoding
functions in line with the matching NFSv4 decoding functions and with
the NFSv2 and NFSv3 XDR functions, preparing the way for better memory
safety and maintainability.
A further improvement to NFSD's write delegation support was
contributed by Dai Ngo. This adds a CB_GETATTR callback, enabling the
server to retrieve cached size and mtime data from clients holding
write delegations. If the server can retrieve this information, it
does not have to recall the delegation in some cases.
The usual panoply of bug fixes and minor improvements round out this
release. As always I am grateful to all contributors, reviewers, and
testers"
* tag 'nfsd-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (127 commits)
svcrdma: Fix tracepoint printk format
svcrdma: Drop connection after an RDMA Read error
NFSD: clean up alloc_init_deleg()
NFSD: Fix frame size warning in svc_export_parse()
NFSD: Rewrite synopsis of nfsd_percpu_counters_init()
nfsd: Clean up errors in nfs3proc.c
nfsd: Clean up errors in nfs4state.c
NFSD: Clean up errors in stats.c
NFSD: simplify error paths in nfsd_svc()
NFSD: Clean up nfsd4_encode_seek()
NFSD: Clean up nfsd4_encode_offset_status()
NFSD: Clean up nfsd4_encode_copy_notify()
NFSD: Clean up nfsd4_encode_copy()
NFSD: Clean up nfsd4_encode_test_stateid()
NFSD: Clean up nfsd4_encode_exchange_id()
NFSD: Clean up nfsd4_do_encode_secinfo()
NFSD: Clean up nfsd4_encode_access()
NFSD: Clean up nfsd4_encode_readdir()
NFSD: Clean up nfsd4_encode_entry4()
NFSD: Add an nfsd4_encode_nfs_cookie4() helper
...
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Other tracepoints use "cq.id=" rather than "cq_id=". Let's make it
more reliable to grep for the CQ restracker ID.
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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Rather than searching a list of threads to find an idle one, having a
list of idle threads allows an idle thread to be found immediately.
This adds some spin_lock calls which is not ideal, but as the hold-time
is tiny it is still faster than searching a list. A future patch will
remove them using llist.h. This involves some subtlety and so is left
to a separate patch.
This removes the need for the RQ_BUSY flag. The rqst is "busy"
precisely when it is not on the "idle" list.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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When CONFIG_IPV6=n, and building with W=1:
In file included from include/trace/define_trace.h:102,
from include/trace/events/neigh.h:255,
from net/core/net-traces.c:51:
include/trace/events/neigh.h: In function ‘trace_event_raw_event_neigh_create’:
include/trace/events/neigh.h:42:34: error: variable ‘pin6’ set but not used [-Werror=unused-but-set-variable]
42 | struct in6_addr *pin6;
| ^~~~
include/trace/trace_events.h:402:11: note: in definition of macro ‘DECLARE_EVENT_CLASS’
402 | { assign; } \
| ^~~~~~
include/trace/trace_events.h:44:30: note: in expansion of macro ‘PARAMS’
44 | PARAMS(assign), \
| ^~~~~~
include/trace/events/neigh.h:23:1: note: in expansion of macro ‘TRACE_EVENT’
23 | TRACE_EVENT(neigh_create,
| ^~~~~~~~~~~
include/trace/events/neigh.h:41:9: note: in expansion of macro ‘TP_fast_assign’
41 | TP_fast_assign(
| ^~~~~~~~~~~~~~
In file included from include/trace/define_trace.h:103,
from include/trace/events/neigh.h:255,
from net/core/net-traces.c:51:
include/trace/events/neigh.h: In function ‘perf_trace_neigh_create’:
include/trace/events/neigh.h:42:34: error: variable ‘pin6’ set but not used [-Werror=unused-but-set-variable]
42 | struct in6_addr *pin6;
| ^~~~
include/trace/perf.h:51:11: note: in definition of macro ‘DECLARE_EVENT_CLASS’
51 | { assign; } \
| ^~~~~~
include/trace/trace_events.h:44:30: note: in expansion of macro ‘PARAMS’
44 | PARAMS(assign), \
| ^~~~~~
include/trace/events/neigh.h:23:1: note: in expansion of macro ‘TRACE_EVENT’
23 | TRACE_EVENT(neigh_create,
| ^~~~~~~~~~~
include/trace/events/neigh.h:41:9: note: in expansion of macro ‘TP_fast_assign’
41 | TP_fast_assign(
| ^~~~~~~~~~~~~~
Indeed, the variable pin6 is declared and initialized unconditionally,
while it is only used and needlessly re-initialized when support for
IPv6 is enabled.
Fix this by dropping the unused variable initialization, and moving the
variable declaration inside the existing section protected by a check
for CONFIG_IPV6.
Fixes: fc651001d2c5ca4f ("neighbor: Add tracepoint to __neigh_create")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Only Xen is using the paravirt lazy mode code, so it can be moved to
Xen specific sources.
This allows to make some of the functions static or to merge them into
their only call sites.
While at it do a rename from "paravirt" to "xen" for all moved
specifiers.
No functional change.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20230913113828.18421-3-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
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strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89
Link: https://lore.kernel.org/linux-trace-kernel/20230831194212.1529941-1-azeemshaikh38@gmail.com
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big set of char/misc and other small driver subsystem
changes for 6.6-rc1.
Stuff all over the place here, lots of driver updates and changes and
new additions. Short summary is:
- new IIO drivers and updates
- Interconnect driver updates
- fpga driver updates and additions
- fsi driver updates
- mei driver updates
- coresight driver updates
- nvmem driver updates
- counter driver updates
- lots of smaller misc and char driver updates and additions
All of these have been in linux-next for a long time with no reported
problems"
* tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (267 commits)
nvmem: core: Notify when a new layout is registered
nvmem: core: Do not open-code existing functions
nvmem: core: Return NULL when no nvmem layout is found
nvmem: core: Create all cells before adding the nvmem device
nvmem: u-boot-env:: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
nvmem: sec-qfprom: Add Qualcomm secure QFPROM support
dt-bindings: nvmem: sec-qfprom: Add bindings for secure qfprom
dt-bindings: nvmem: Add compatible for QCM2290
nvmem: Kconfig: Fix typo "drive" -> "driver"
nvmem: Explicitly include correct DT includes
nvmem: add new NXP QorIQ eFuse driver
dt-bindings: nvmem: Add t1023-sfp efuse support
dt-bindings: nvmem: qfprom: Add compatible for MSM8226
nvmem: uniphier: Use devm_platform_get_and_ioremap_resource()
nvmem: qfprom: do some cleanup
nvmem: stm32-romem: Use devm_platform_get_and_ioremap_resource()
nvmem: rockchip-efuse: Use devm_platform_get_and_ioremap_resource()
nvmem: meson-mx-efuse: Convert to devm_platform_ioremap_resource()
nvmem: lpc18xx_otp: Convert to devm_platform_ioremap_resource()
nvmem: brcm_nvram: Use devm_platform_get_and_ioremap_resource()
...
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We need the char/misc fixes in here as well to build on top of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi into char-misc-next
Joen writes:
FSI changes for v6.6
* New drivers for the I2C Responder master and SCOM device
* Misc janitor fixes
* tag 'fsi-for-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi:
fsi: fix some spelling mistakes in comment
fsi: master-ast-cf: Add MODULE_FIRMWARE macro
docs: ABI: fix spelling/grammar in SBEFIFO timeout interface
fsi: Add I2C Responder SCOM driver
fsi: Add IBM I2C Responder virtual FSI master
dt-bindings: fsi: Document the IBM I2C Responder virtual FSI master
fsi: Lock mutex for master device registration
fsi: Improve master indexing
fsi: core: Switch to ida_alloc/free
fsi: core: Fix legacy minor numbering
fsi: core: Add trace events for scan and unregister
fsi: aspeed: Reset master errors after CFAM reset
fsi: sbefifo: Remove limits on user-specified read timeout
fsi: sbefifo: Add configurable in-command timeout
fsi: sbefifo: Don't check status during probe
fsi: Use of_match_table for bus matching if specified
fsi: Add aliased device numbering
fsi: Move fsi_slave structure definition to header
fsi: Use of_property_read_reg() to parse "reg"
fsi: Explicitly include correct DT includes
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The I2C Responder (I2CR) is an I2C device that translates I2C commands
to CFAM or SCOM operations, effectively implementing an FSI master and
bus.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20230612195657.245125-14-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
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Add more trace events for the scanning and unregistration
functions for debug purposes.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230612195657.245125-9-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
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Pull nfsd updates from Chuck Lever:
"I'm thrilled to announce that the Linux in-kernel NFS server now
offers NFSv4 write delegations. A write delegation enables a client to
cache data and metadata for a single file more aggressively, reducing
network round trips and server workload. Many thanks to Dai Ngo for
contributing this facility, and to Jeff Layton and Neil Brown for
reviewing and testing it.
This release also sees the removal of all support for DES- and
triple-DES-based Kerberos encryption types in the kernel's SunRPC
implementation. These encryption types have been deprecated by the
Internet community for years and are considered insecure. This change
affects both the in-kernel NFS client and server.
The server's UDP and TCP socket transports have now fully adopted
David Howells' new bio_vec iterator so that no more than one sendmsg()
call is needed to transmit each RPC message. In particular, this helps
kTLS optimize record boundaries when sending RPC-with-TLS replies, and
it takes the server a baby step closer to handling file I/O via
folios.
We've begun work on overhauling the SunRPC thread scheduler to remove
a costly linked-list walk when looking for an idle RPC service thread
to wake. The pre-requisites are included in this release. Thanks to
Neil Brown for his ongoing work on this improvement"
* tag 'nfsd-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (56 commits)
Documentation: Add missing documentation for EXPORT_OP flags
SUNRPC: Remove unused declaration rpc_modcount()
SUNRPC: Remove unused declarations
NFSD: da_addr_body field missing in some GETDEVICEINFO replies
SUNRPC: Remove return value of svc_pool_wake_idle_thread()
SUNRPC: make rqst_should_sleep() idempotent()
SUNRPC: Clean up svc_set_num_threads
SUNRPC: Count ingress RPC messages per svc_pool
SUNRPC: Deduplicate thread wake-up code
SUNRPC: Move trace_svc_xprt_enqueue
SUNRPC: Add enum svc_auth_status
SUNRPC: change svc_xprt::xpt_flags bits to enum
SUNRPC: change svc_rqst::rq_flags bits to enum
SUNRPC: change svc_pool::sp_flags bits to enum
SUNRPC: change cache_head.flags bits to enum
SUNRPC: remove timeout arg from svc_recv()
SUNRPC: change svc_recv() to return void.
SUNRPC: call svc_process() from svc_recv().
nfsd: separate nfsd_last_thread() from nfsd_put()
nfsd: Simplify code around svc_exit_thread() call in nfsd()
...
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The xpt_flags field frequently changes between the time that
svc_xprt_ready() grabs a copy and execution flow arrives at the
tracepoint at the tail of svc_xprt_enqueue(). In fact, there's
usually a sleep/wake-up in there, so those flags are almost
guaranteed to be different.
It would be more useful to record the exact flags that were used to
decide whether the transport is ready, so move the tracepoint.
Moving it means the tracepoint can't pick up the waker's pid. That
can be added to struct svc_rqst if it turns out that is important.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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In addition to the benefits of using an enum rather than a set of
macros, we now have a named type that can improve static type
checking of function return values.
As part of this change, I removed a stale comment from svcauth.h;
the return values from current implementations of the
auth_ops::release method are all zero/negative errno, not the SVC_OK
enum values as the old comment suggested.
Suggested-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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When a sequence of numbers are needed for internal-use only, an enum is
typically best. The sequence will inevitably need to be changed one
day, and having an enum means the developer doesn't need to think about
renumbering after insertion or deletion. Such patches will be easier
to review.
Suggested-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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