Kent Overstreet [Fri, 22 Jul 2016 03:05:06 +0000 (19:05 -0800)]
bcachefs: lift ordering restriction on 0 size extents
This lifts the restriction that 0 size extents must not overlap with
other extents, which means we can now sort extents and non extents the
same way, and will let us simplify a bunch of other stuff as well.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Fri, 3 Aug 2018 23:41:44 +0000 (19:41 -0400)]
bcachefs: Factor out btree_key_can_insert()
working on getting rid of all the reasons bch2_insert_fixup_extent() can
fail/stop partway, which is needed for other refactorings.
One of the reasons we could have to bail out is if we're splitting a
compressed extent we might need to add to our disk reservation - but we
can check that before actually starting the insert.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Tue, 24 Jul 2018 20:42:49 +0000 (16:42 -0400)]
bcachefs: Change how replicated data is accounted
Due to compression, the different replicas of a replicated extent don't
necessarily have to take up the same amount of space - so replicated
data sector counts shouldn't be stored divided by the number of
replicas.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Mon, 23 Jul 2018 11:52:00 +0000 (07:52 -0400)]
bcachefs: Assorted journal refactoring
Also improve error reporting - only return an error from
bch2_journal_flush_seq() if we had an error writing that entry (i.e. not
if there was an error with a newer entry).
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Sun, 22 Jul 2018 14:43:01 +0000 (10:43 -0400)]
bcachefs: Invalidate buckets when writing to alloc btree
Prep work for persistent alloc information. Refactoring also lets us
make free_inc much smaller, which means a lot fewer buckets stranded on
freelists.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Sun, 22 Jul 2018 02:57:20 +0000 (22:57 -0400)]
bcachefs: don't call bch2_bucket_seq_cleanup from journal_buf_switch
journal_buf_switch is called from the foreground when getting a journal
reservation and thus is somewhat latency sensitive;
bch2_bucket_seq_cleanup has to run infrequently but is a bit expensive
when it does run.
Call it from the journal write path instead, and punt the journal write
to worqueue context.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Sat, 21 Jul 2018 02:23:42 +0000 (22:23 -0400)]
bcachefs: Use ei_update_lock consistently
This is prep work for using deferred btree updates for inode updates -
the way inodes are done now we're relying on btree locking for ei_inode
and ei_update_lock could probably be removed, but it'll actually be
needed when we switch to deferred updates.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Sun, 15 Jul 2018 01:06:51 +0000 (21:06 -0400)]
bcachefs: Only check inode i_nlink during full fsck
Now that all filesystem operatinos that manipulate the filesystem
heirachy and i_nlink are fully atomic, we can add a feature bit to
indicate i_nlink doesn't need to be checked.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Sat, 13 Feb 2021 01:11:25 +0000 (20:11 -0500)]
lib/generic-radix-tree.c: Don't overflow in peek()
When we started spreading new inode numbers throughout most of the 64
bit inode space, that triggered some corner case bugs, in particular
some integer overflows related to the radix tree code. Oops.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Kent Overstreet [Sat, 9 Dec 2017 17:42:44 +0000 (12:42 -0500)]
closures: closure_wait_event()
Like wait_event() - except, because it uses closures and closure
waitlists it doesn't have the restriction on modifying task state inside
the condition check, like wait_event() does.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Acked-by: Coly Li <colyli@suse.de>
Kent Overstreet [Wed, 26 Apr 2023 16:27:51 +0000 (12:27 -0400)]
MAINTAINERS: Add entry for closures
closures, from bcache, are async widgets with a variety of uses.
bcachefs also uses them, so they're being moved to lib/; mark them as
maintained.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> Acked-by: Coly Li <colyli@suse.de> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Brian Foster [Mon, 14 Aug 2023 13:04:50 +0000 (09:04 -0400)]
locking: export contention tracepoints for bcachefs six locks
The bcachefs implementation of six locks is intended to land in
generic locking code in the long term, but has been pulled into the
bcachefs subsystem for internal use for the time being. This code
lift breaks the bcachefs module build as six locks depend a couple
of the generic locking tracepoints. Export these tracepoint symbols
for bcachefs.
Signed-off-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Tue, 25 Apr 2023 18:45:28 +0000 (14:45 -0400)]
lib: Export errname
errname() returns the name of an errcode; this functionality is
otherwise only available for error pointers via %pE - bcachefs uses this
for better error messages.
Signed-off-by: Christopher James Halse Rogers <raof@ubuntu.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Mon, 25 Apr 2022 19:26:28 +0000 (15:26 -0400)]
lib/string_helpers: string_get_size() now returns characters wrote
printbuf now needs to know the number of characters that would have been
written if the buffer was too small, like snprintf(); this changes
string_get_size() to return the the return value of snprintf().
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Kent Overstreet [Tue, 10 Jul 2018 03:27:33 +0000 (23:27 -0400)]
fs: factor out d_mark_tmpfile()
New helper for bcachefs - bcachefs doesn't want the
inode_dec_link_count() call that d_tmpfile does, it handles i_nlink on
its own atomically with other btree updates
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <brauner@kernel.org> Cc: linux-fsdevel@vger.kernel.org Reviewed-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christian Brauner <brauner@kernel.org>
Kent Overstreet [Wed, 16 Oct 2019 19:03:50 +0000 (15:03 -0400)]
sched: Add task_struct->faults_disabled_mapping
There has been a long standing page cache coherence bug with direct IO.
This provides part of a mechanism to fix it, currently just used by
bcachefs but potentially worth promoting to the VFS.
Direct IO evicts the range of the pagecache being read or written to.
For reads, we need dirty pages to be written to disk, so that the read
doesn't return stale data. For writes, we need to evict that range of
the pagecache so that it's not stale after the write completes.
However, without a locking mechanism to prevent those pages from being
re-added to the pagecache - by a buffered read or page fault - page
cache inconsistency is still possible.
This isn't necessarily just an issue for userspace when they're playing
games; filesystems may hang arbitrary state off the pagecache, and so
page cache inconsistency may cause real filesystem bugs, depending on
the filesystem. This is less of an issue for iomap based filesystems,
but e.g. buffer heads caches disk block mappings (!) and attaches them
to the pagecache, and bcachefs attaches disk reservations to pagecache
pages.
This issue has been hard to fix, because
- we need to add a lock (henceforth called pagecache_add_lock), which
would be held for the duration of the direct IO
- page faults add pages to the page cache, thus need to take the same
lock
- dio -> gup -> page fault thus can deadlock
And we cannot enforce a lock ordering with this lock, since userspace
will be controlling the lock ordering (via the fd and buffer arguments
to direct IOs), so we need a different method of deadlock avoidance.
We need to tell the page fault handler that we're already holding a
pagecache_add_lock, and since plumbing it through the entire gup() path
would be highly impractical this adds a field to task_struct.
Then the full method is:
- in the dio path, when we first take the pagecache_add_lock, note the
mapping in the current task_struct
- in the page fault handler, if faults_disabled_mapping is set, we
check if it's the same mapping as the one we're taking a page fault
for, and if so return an error.
Then we check lock ordering: if there's a lock ordering violation and
trylock fails, we'll have to cycle the locks and return an error that
tells the DIO path to retry: faults_disabled_mapping is also used for
signalling "locks were dropped, please retry".
Also relevant to this patch: mapping->invalidate_lock.
mapping->invalidate_lock provides most of the required semantics - it's
used by truncate/fallocate to block pages being added to the pagecache.
However, since it's a rwsem, direct IOs would need to take the write
side in order to block page cache adds, and would then be exclusive with
each other - we'll need a new type of lock to pair with this approach.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> Cc: Jan Kara <jack@suse.cz> Cc: Darrick J. Wong <djwong@kernel.org> Cc: linux-fsdevel@vger.kernel.org Cc: Andreas Grünbacher <andreas.gruenbacher@gmail.com>
Merge tag 'topic/drm-ci-2023-08-31-1' of git://anongit.freedesktop.org/drm/drm
Pull drm ci scripts from Dave Airlie:
"This is a bunch of ci integration for the freedesktop gitlab instance
where we currently do upstream userspace testing on diverse sets of
GPU hardware. From my perspective I think it's an experiment worth
going with and seeing how the benefits/noise playout keeping these
files useful.
Ideally I'd like to get this so we can do pre-merge testing on PRs
eventually.
Below is some info from danvet on why we've ended up making the
decision and how we can roll it back if we decide it was a bad plan.
Why in upstream?
- like documentation, testcases, tools CI integration is one of these
things where you can waste endless amounts of time if you
accidentally have a version that doesn't match your source code
- but also like the above, there's a balance, this is the initial cut
of what we think makes sense to keep in sync vs out-of-tree,
probably needs adjustment
- gitlab supports out-of-repo gitlab integration and that's what's
been used for the kernel in drm, but it results in per-driver
fragmentation and lots of duplicated effort. the simple act of
smashing an arbitrary winner into a topic branch already started
surfacing patches on dri-devel and sparking good cross driver team
discussions
Why gitlab?
- it's not any more shit than any of the other CI
- drm userspace uses it extensively for everything in userspace, we
have a lot of people and experience with this, including
integration of hw testing labs
- media userspace like gstreamer is also on gitlab.fd.o, and there's
discussion to extend this to the media subsystem in some fashion
Can this be shared?
- there's definitely a pile of code that could move to scripts/ if
other subsystem adopt ci integration in upstream kernel git. other
bits are more drm/gpu specific like the igt-gpu-tests/tools
integration
- docker images can be run locally or in other CI runners
Will we regret this?
- it's all in one directory, intentionally, for easy deletion
- probably 1-2 years in upstream to see whether this is worth it or a
Big Mistake. that's roughly what it took to _really_ roll out solid
CI in the bigger userspace projects we have on gitlab.fd.o like
mesa3d"
* tag 'topic/drm-ci-2023-08-31-1' of git://anongit.freedesktop.org/drm/drm:
drm: ci: docs: fix build warning - add missing escape
drm: Add initial ci/ subdirectory
Merge tag 'x86-urgent-2023-09-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Fix preemption delays in the SGX code, remove unnecessarily
UAPI-exported code, fix a ld.lld linker (in)compatibility quirk and
make the x86 SMP init code a bit more conservative to fix kexec()
lockups"
* tag 'x86-urgent-2023-09-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sgx: Break up long non-preemptible delays in sgx_vepc_release()
x86: Remove the arch_calc_vm_prot_bits() macro from the UAPI
x86/build: Fix linker fill bytes quirk/incompatibility for ld.lld
x86/smp: Don't send INIT to non-present and non-booted CPUs
Merge tag 'perf-tools-for-v6.6-1-2023-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools updates from Arnaldo Carvalho de Melo:
"perf tools maintainership:
- Add git information for perf-tools and perf-tools-next trees and
branches to the MAINTAINERS file. That is where development now
takes place and myself and Namhyung Kim have write access, more
people to come as we emulate other maintainer groups.
perf record:
- Record kernel data maps when 'perf record --data' is used, so that
global variables can be resolved and used in tools that do data
profiling.
perf trace:
- Remove the old, experimental support for BPF events in which a .c
file was passed as an event: "perf trace -e hello.c" to then get
compiled and loaded.
The only known usage for that, that shipped with the kernel as an
example for such events, augmented the raw_syscalls tracepoints and
was converted to a libbpf skeleton, reusing all the user space
components and the BPF code connected to the syscalls.
In the end just the way to glue the BPF part and the user space
type beautifiers changed, now being performed by libbpf skeletons.
The next step is to use BTF to do pretty printing of all syscall
types, as discussed with Alan Maguire and others.
Now, on a perf built with BUILD_BPF_SKEL=1 we get most if not all
path/filenames/strings, some of the networking data structures,
perf_event_attr, etc, i.e. systemwide tracing of nanosleep calls
and perf_event_open syscalls while 'perf stat' runs 'sleep' for 5
seconds:
- Building with binutils' libopcode now is opt-in (BUILD_NONDISTRO=1)
for licensing reasons, and we missed a build test on
tools/perf/tests makefile.
Since we now default to NDEBUG=1, we ended up segfaulting when
building with BUILD_NONDISTRO=1 because a needed initialization
routine was being "error checked" via an assert.
Fix it by explicitly checking the result and aborting instead if it
fails.
We better back propagate the error, but at least 'perf annotate' on
samples collected for a BPF program is back working when perf is
built with BUILD_NONDISTRO=1.
perf report/top:
- Add back TUI hierarchy mode header, that is seen when using 'perf
report/top --hierarchy'.
- Fix the number of entries for 'e' key in the TUI that was
preventing navigation of lines when expanding an entry.
perf report/script:
- Support cross platform register handling, allowing a perf.data file
collected on one architecture to have registers sampled correctly
displayed when analysis tools such as 'perf report' and 'perf
script' are used on a different architecture.
- Fix handling of event attributes in pipe mode, i.e. when one uses:
perf record -o - | perf report -i -
When no perf.data files are used.
- Handle files generated via pipe mode with a version of perf and
then read also via pipe mode with a different version of perf,
where the event attr record may have changed, use the record size
field to properly support this version mismatch.
perf probe:
- Accessing global variables from uprobes isn't supported, make the
error message state that instead of stating that some minimal
kernel version is needed to have that feature. This seems just a
tool limitation, the kernel probably has all that is needed.
perf tests:
- Fix a reference count related leak in the dlfilter v0 API where the
result of a thread__find_symbol_fb() is not matched with an
addr_location__exit() to drop the reference counts of the resolved
components (machine, thread, map, symbol, etc). Add a dlfilter test
to make sure that doesn't regresses.
- Lots of fixes for the 'perf test' written in shell script related
to problems found with the shellcheck utility.
- Fixes for 'perf test' shell scripts testing features enabled when
perf is built with BUILD_BPF_SKEL=1, such as 'perf stat' bpf
counters.
- Add perf record sample filtering test, things like the following
example, that gets implemented as a BPF filter attached to the
event:
- Improve the way the task_analyzer test checks if libtraceevent is
linked, using 'perf version --build-options' instead of the more
expensinve 'perf record -e "sched:sched_switch"'.
- Add support for riscv in the mmap-basic test. (This went as well
via the RiscV tree, same contents).
libperf:
- Implement riscv mmap support (This went as well via the RiscV tree,
same contents).
perf script:
- New tool that converts perf.data files to the firefox profiler
format so that one can use the visualizer at
https://profiler.firefox.com/. Done by Anup Sharma as part of this
year's Google Summer of Code.
One can generate the output and upload it to the web interface but
Anup also automated everything:
perf script gecko -F 99 -a sleep 60
- Support syscall name parsing on arm64.
- Print "cgroup" field on the same line as "comm".
perf bench:
- Add new 'uprobe' benchmark to measure the overhead of uprobes
with/without BPF programs attached to it.
- breakpoints are not available on power9, skip that test.
perf stat:
- Add #num_cpus_online literal to be used in 'perf stat' metrics, and
add this extra 'perf test' check that exemplifies its purpose:
- Improve tool startup time by lazily reading PMU, JSON, sysfs data.
- Improve error reporting in the parsing of events, passing YYLTYPE
to error routines, so that the output can show were the parsing
error was found.
- Add 'perf test' entries to check the parsing of events
improvements.
- Fix various leak for things detected by -fsanitize=address, mostly
things that would be freed at tool exit, including:
- Free evsel->filter on the destructor.
- Allow tools to register a thread->priv destructor and use it in
'perf trace'.
- Free evsel->priv in 'perf trace'.
- Free string returned by synthesize_perf_probe_point() when the
caller fails to do all it needs.
- Adjust various compiler options to not consider errors some
warnings when building with broken headers found in things like
python, flex, bison, as we otherwise build with -Werror. Some for
gcc, some for clang, some for some specific version of those, some
for some specific version of flex or bison, or some specific
combination of these components, bah.
- Allow customization of clang options for BPF target, this helps
building on gentoo where there are other oddities where BPF targets
gets passed some compiler options intended for the native build, so
building with WERROR=0 helps while these oddities are fixed.
- Dont pass ERR_PTR() values to perf_session__delete() in 'perf top'
and 'perf lock', fixing some segfaults when handling some odd
failures.
- Add LTO build option.
- Fix format of unordered lists in the perf docs
(tools/perf/Documentation)
- Overhaul the bison files, using constructs such as YYNOMEM.
- Remove unused tokens from the bison .y files.
- Add more comments to various structs.
- A few LoongArch enablement patches.
Vendor events (JSON):
- Add JSON metrics for Yitian 710 DDR (aarch64). Things like:
EventName, BriefDescription
visible_window_limit_reached_rd, "At least one entry in read queue reaches the visible window limit.",
visible_window_limit_reached_wr, "At least one entry in write queue reaches the visible window limit.",
op_is_dqsosc_mpc , "A DQS Oscillator MPC command to DRAM.",
op_is_dqsosc_mrr , "A DQS Oscillator MRR command to DRAM.",
op_is_tcr_mrr , "A Temperature Compensated Refresh(TCR) MRR command to DRAM.",
- Add AmpereOne metrics (aarch64).
- Update N2 and V2 metrics (aarch64) and events using Arm telemetry
repo.
- Update scale units and descriptions of common topdown metrics on
aarch64. Things like:
- "MetricExpr": "stall_slot_frontend / (#slots * cpu_cycles)",
- "BriefDescription": "Frontend bound L1 topdown metric",
+ "MetricExpr": "100 * (stall_slot_frontend / (#slots * cpu_cycles))",
+ "BriefDescription": "This metric is the percentage of total slots that were stalled due to resource constraints in the frontend of the processor.",
- Update events for intel: meteorlake to 1.04, sapphirerapids to
1.15, Icelake+ metric constraints.
- Update files for the power10 platform"
* tag 'perf-tools-for-v6.6-1-2023-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (217 commits)
perf parse-events: Fix driver config term
perf parse-events: Fixes relating to no_value terms
perf parse-events: Fix propagation of term's no_value when cloning
perf parse-events: Name the two term enums
perf list: Don't print Unit for "default_core"
perf vendor events intel: Fix modifier in tma_info_system_mem_parallel_reads for skylake
perf dlfilter: Avoid leak in v0 API test use of resolve_address()
perf metric: Add #num_cpus_online literal
perf pmu: Remove str from perf_pmu_alias
perf parse-events: Make common term list to strbuf helper
perf parse-events: Minor help message improvements
perf pmu: Avoid uninitialized use of alias->str
perf jevents: Use "default_core" for events with no Unit
perf test stat_bpf_counters_cgrp: Enhance perf stat cgroup BPF counter test
perf test shell stat_bpf_counters: Fix test on Intel
perf test shell record_bpf_filter: Skip 6.2 kernel
libperf: Get rid of attr.id field
perf tools: Convert to perf_record_header_attr_id()
libperf: Add perf_record_header_attr_id()
perf tools: Handle old data in PERF_RECORD_ATTR
...
Merge tag '6.6-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- six smb3 client fixes including ones to allow controlling smb3
directory caching timeout and limits, and one debugging improvement
- one fix for nls Kconfig (don't need to expose NLS_UCS2_UTILS option)
- one minor spnego registry update
* tag '6.6-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
spnego: add missing OID to oid registry
smb3: fix minor typo in SMB2_GLOBAL_CAP_LARGE_MTU
cifs: update internal module version number for cifs.ko
smb3: allow controlling maximum number of cached directories
smb3: add trace point for queryfs (statfs)
nls: Hide new NLS_UCS2_UTILS
smb3: allow controlling length of time directory entries are cached with dir leases
smb: propagate error code of extract_sharename()
David Howells [Fri, 8 Sep 2023 16:03:22 +0000 (17:03 +0100)]
iov_iter: Kunit tests for page extraction
Add some kunit tests for page extraction for ITER_BVEC, ITER_KVEC and
ITER_XARRAY type iterators. ITER_UBUF and ITER_IOVEC aren't dealt with
as they require userspace VM interaction. ITER_DISCARD isn't dealt with
either as that can't be extracted.
Signed-off-by: David Howells <dhowells@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Christian Brauner <brauner@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: David Hildenbrand <david@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 8 Sep 2023 16:03:21 +0000 (17:03 +0100)]
iov_iter: Kunit tests for copying to/from an iterator
Add some kunit tests for page extraction for ITER_BVEC, ITER_KVEC and
ITER_XARRAY type iterators. ITER_UBUF and ITER_IOVEC aren't dealt with
as they require userspace VM interaction. ITER_DISCARD isn't dealt with
either as that does nothing.
Signed-off-by: David Howells <dhowells@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Christian Brauner <brauner@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: David Hildenbrand <david@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 8 Sep 2023 16:03:20 +0000 (17:03 +0100)]
iov_iter: Fix iov_iter_extract_pages() with zero-sized entries
iov_iter_extract_pages() doesn't correctly handle skipping over initial
zero-length entries in ITER_KVEC and ITER_BVEC-type iterators.
The problem is that it accidentally reduces maxsize to 0 when it
skipping and thus runs to the end of the array and returns 0.
Fix this by sticking the calculated size-to-copy in a new variable
rather than back in maxsize.
Fixes: 7d58fe731028 ("iov_iter: Add a function to extract a page list from an iterator") Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Christian Brauner <brauner@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: David Hildenbrand <david@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge tag 'riscv-for-linus-6.6-mw2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
- The kernel now dynamically probes for misaligned access speed, as
opposed to relying on a table of known implementations.
- Support for non-coherent devices on systems using the Andes AX45MP
core, including the RZ/Five SoCs.
- Support for the V extension in ptrace(), again.
- Support for KASLR.
- Support for the BPF prog pack allocator in RISC-V.
- A handful of bug fixes and cleanups.
* tag 'riscv-for-linus-6.6-mw2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (25 commits)
soc: renesas: Kconfig: For ARCH_R9A07G043 select the required configs if dependencies are met
riscv: Kconfig.errata: Add dependency for RISCV_SBI in ERRATA_ANDES config
riscv: Kconfig.errata: Drop dependency for MMU in ERRATA_ANDES_CMO config
riscv: Kconfig: Select DMA_DIRECT_REMAP only if MMU is enabled
bpf, riscv: use prog pack allocator in the BPF JIT
riscv: implement a memset like function for text
riscv: extend patch_text_nosync() for multiple pages
bpf: make bpf_prog_pack allocator portable
riscv: libstub: Implement KASLR by using generic functions
libstub: Fix compilation warning for rv32
arm64: libstub: Move KASLR handling functions to kaslr.c
riscv: Dump out kernel offset information on panic
riscv: Introduce virtual kernel mapping KASLR
RISC-V: Add ptrace support for vectors
soc: renesas: Kconfig: Select the required configs for RZ/Five SoC
cache: Add L2 cache management for Andes AX45MP RISC-V core
dt-bindings: cache: andestech,ax45mp-cache: Add DT binding documentation for L2 cache controller
riscv: mm: dma-noncoherent: nonstandard cache operations support
riscv: errata: Add Andes alternative ports
riscv: asm: vendorid_list: Add Andes Technology to the vendors list
...
Duoming Zhou [Wed, 2 Aug 2023 03:37:37 +0000 (11:37 +0800)]
sh: push-switch: Reorder cleanup operations to avoid use-after-free bug
The original code puts flush_work() before timer_shutdown_sync()
in switch_drv_remove(). Although we use flush_work() to stop
the worker, it could be rescheduled in switch_timer(). As a result,
a use-after-free bug can occur. The details are shown below:
This patch puts timer_shutdown_sync() before flush_work() to
mitigate the bugs. As a result, the worker and timer will be
stopped safely before the deallocate operations.
Fixes: 9f5e8eee5cfe ("sh: generic push-switch framework.") Signed-off-by: Duoming Zhou <duoming@zju.edu.cn> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/20230802033737.9738-1-duoming@zju.edu.cn Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Petr Tesarik [Mon, 24 Jul 2023 12:07:42 +0000 (14:07 +0200)]
sh: boards: Fix CEU buffer size passed to dma_declare_coherent_memory()
In all these cases, the last argument to dma_declare_coherent_memory() is
the buffer end address, but the expected value should be the size of the
reserved region.
Fixes: 39fb993038e1 ("media: arch: sh: ap325rxa: Use new renesas-ceu camera driver") Fixes: c2f9b05fd5c1 ("media: arch: sh: ecovec: Use new renesas-ceu camera driver") Fixes: f3590dc32974 ("media: arch: sh: kfr2r09: Use new renesas-ceu camera driver") Fixes: 186c446f4b84 ("media: arch: sh: migor: Use new renesas-ceu camera driver") Fixes: 1a3c230b4151 ("media: arch: sh: ms7724se: Use new renesas-ceu camera driver") Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20230724120742.2187-1-petrtesarik@huaweicloud.com Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"Mostly small stragglers that missed the initial merge.
Driver updates are qla2xxx and smartpqi (mp3sas has a high diffstat
due to the volatile qualifier removal, fnic due to unused function
removal and sd.c has a lot of code shuffling to remove forward
declarations)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (38 commits)
scsi: ufs: core: No need to update UPIU.header.flags and lun in advanced RPMB handler
scsi: ufs: core: Add advanced RPMB support where UFSHCI 4.0 does not support EHS length in UTRD
scsi: mpt3sas: Remove volatile qualifier
scsi: mpt3sas: Perform additional retries if doorbell read returns 0
scsi: libsas: Simplify sas_queue_reset() and remove unused code
scsi: ufs: Fix the build for the old ARM OABI
scsi: qla2xxx: Fix unused variable warning in qla2xxx_process_purls_pkt()
scsi: fnic: Remove unused functions fnic_scsi_host_start/end_tag()
scsi: qla2xxx: Fix spelling mistake "tranport" -> "transport"
scsi: fnic: Replace sgreset tag with max_tag_id
scsi: qla2xxx: Remove unused variables in qla24xx_build_scsi_type_6_iocbs()
scsi: qla2xxx: Fix nvme_fc_rcv_ls_req() undefined error
scsi: smartpqi: Change driver version to 2.1.24-046
scsi: smartpqi: Enhance error messages
scsi: smartpqi: Enhance controller offline notification
scsi: smartpqi: Enhance shutdown notification
scsi: smartpqi: Simplify lun_number assignment
scsi: smartpqi: Rename pciinfo to pci_info
scsi: smartpqi: Rename MACRO to clarify purpose
scsi: smartpqi: Add abort handler
...
Merge tag 'driver-core-6.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver symbol lookup fix from Greg KH:
"Here is one last fixup for your tree for 6.6-rc1. It resolves a
problem with the way that symbol_get was changed in the module tree
merge in your tree to fix up the DVB drivers which rely on this old
api to attach new devices.
As the changelog comment says:
In commit 9011e49d54dc ("modules: only allow symbol_get of
EXPORT_SYMBOL_GPL modules") the use of symbol_get is properly
restricted to GPL-only marked symbols. This interacts oddly with the
DVB logic which only uses dvb_attach() to load the dvb driver which
then uses symbol_get().
Fix this up by properly marking all of the dvb_attach attach symbols
as EXPORT_SYMBOL_GPL().
This has been acked by Hans from the V4L driver side, Luis from the
module side, Mauro on the media side, and Christoph said it was the
correct solution, and was tested by the original reporter of the
issue.
It has passed 0-day testing, but has not been in linux-next due to it
only being sent yesterday"
* tag 'driver-core-6.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
media: dvb: symbol fixup for dvb_attach()
Merge tag 'dma-mapping-6.6-2023-09-09' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
- move a dma-debug call that prints a message out from a lock that's
causing problems with the lock order in serial drivers (Sergey
Senozhatsky)
- fix the CONFIG_DMA_NUMA_CMA Kconfig entry to have the right
dependency and not default to y (Christoph Hellwig)
- move an ifdef a bit to remove a __maybe_unused that seems to trip up
some sensitivities (Christoph Hellwig)
- revert a bogus check in the CMA allocator (Zhenhua Huang)
* tag 'dma-mapping-6.6-2023-09-09' of git://git.infradead.org/users/hch/dma-mapping:
Revert "dma-contiguous: check for memory region overlap"
dma-pool: remove a __maybe_unused label in atomic_pool_expand
dma-contiguous: fix the Kconfig entry for CONFIG_DMA_NUMA_CMA
dma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock
Merge tag 'pci-v6.6-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI fixes from Bjorn Helgaas:
- Add PCI_DYNAMIC_OF_NODES dependency on OF_IRQ to fix sparc64 build
error (Lizhi Hou)
- After coalescing host bridge resources, free any released resources
to avoid a leak (Ross Lagerwall)
- Revert a quirk that prevented NVIDIA T4 GPUs from using Secondary Bus
Reset. The quirk worked around an issue that we now think is related
to the Root Port, not the GPU (Bjorn Helgaas)
* tag 'pci-v6.6-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset"
PCI: Free released resource after coalescing
PCI: Fix CONFIG_PCI_DYNAMIC_OF_NODES kconfig dependencies
Merge tag 'ntb-6.6' of https://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"Link toggling fixes and debugfs error path fixes"
[ And for everybody like me who always have to remind themselves what
the TLA of the day is, and what NTB stands for - it's a PCIe
"Non-Transparent Bridge" thing - Linus ]
* tag 'ntb-6.6' of https://github.com/jonmason/ntb:
ntb: Check tx descriptors outstanding instead of head/tail for tx queue
ntb: Fix calculation ntb_transport_tx_free_entry()
ntb: Drop packets when qp link is down
ntb: Clean up tx tail index on link down
ntb: amd: Drop unnecessary error check for debugfs_create_dir
NTB: ntb_tool: Switch to memdup_user_nul() helper
dtivers: ntb: fix parameter check in perf_setup_dbgfs()
ntb: Remove error checking for debugfs_create_dir()
In commit 9011e49d54dc ("modules: only allow symbol_get of
EXPORT_SYMBOL_GPL modules") the use of symbol_get is properly restricted
to GPL-only marked symbols. This interacts oddly with the DVB logic
which only uses dvb_attach() to load the dvb driver which then uses
symbol_get().
Fix this up by properly marking all of the dvb_attach attach symbols as
EXPORT_SYMBOL_GPL().
Fixes: 9011e49d54dc ("modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules") Cc: stable <stable@kernel.org> Reported-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Christoph Hellwig <hch@lst.de> Cc: linux-media@vger.kernel.org Cc: linux-modules@vger.kernel.org Acked-by: Luis Chamberlain <mcgrof@kernel.org> Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Link: https://lore.kernel.org/r/20230908092035.3815268-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'xarray-6.6' of git://git.infradead.org/users/willy/xarray
Pull xarray fixes from Matthew Wilcox:
- Fix a bug encountered by people using bittorrent where they'd get
NULL pointer dereferences on page cache lookups when using XFS
- Two documentation fixes
* tag 'xarray-6.6' of git://git.infradead.org/users/willy/xarray:
idr: fix param name in idr_alloc_cyclic() doc
xarray: Document necessary flag in alloc functions
XArray: Do not return sibling entries from xa_load()
- Fix a regression in partition handling for devices not supporting
partitions (Li)
* tag 'block-6.6-2023-09-08' of git://git.kernel.dk/linux:
drbd: swap bvec_set_page len and offset
block: fix pin count management when merging same-page segments
null_blk: fix poll request timeout handling
s390/dasd: fix string length handling
block: don't add or resize partition on the disk with GENHD_FL_NO_PART
block: remove the call to file_remove_privs in blkdev_write_iter
blk-throttle: consider 'carryover_ios/bytes' in throtl_trim_slice()
blk-throttle: use calculate_io/bytes_allowed() for throtl_trim_slice()
blk-throttle: fix wrong comparation while 'carryover_ios/bytes' is negative
blk-throttle: print signed value 'carryover_bytes/ios' for user
Merge tag 'io_uring-6.6-2023-09-08' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"A few fixes that should go into the 6.6-rc merge window:
- Fix for a regression this merge window caused by the SQPOLL
affinity patch, where we can race with SQPOLL thread shutdown and
cause an oops when trying to set affinity (Gabriel)
- Fix for a regression this merge window where fdinfo reading with
for a ring setup with IORING_SETUP_NO_SQARRAY will attempt to
deference the non-existing SQ ring array (me)
- Add the patch that allows more finegrained control over who can use
io_uring (Matteo)
- Locking fix for a regression added this merge window for IOPOLL
overflow (Pavel)
- IOPOLL fix for stable, breaking our loop if helper threads are
exiting (Pavel)
Also had a fix for unreaped iopoll requests from io-wq from Ming, but
we found an issue with that and hence it got reverted. Will get this
sorted for a future rc"
* tag 'io_uring-6.6-2023-09-08' of git://git.kernel.dk/linux:
Revert "io_uring: fix IO hang in io_wq_put_and_exit from do_exit()"
io_uring: fix unprotected iopoll overflow
io_uring: break out of iowq iopoll on teardown
io_uring: add a sysctl to disable io_uring system-wide
io_uring/fdinfo: only print ->sq_array[] if it's there
io_uring: fix IO hang in io_wq_put_and_exit from do_exit()
io_uring: Don't set affinity on a dying sqpoll thread
Merge tag 'thermal-6.6-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more thermal control updates from Rafael Wysocki:
"Eliminate an obsolete thermal zone registration function"
* tag 'thermal-6.6-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: core: Drop thermal_zone_device_register()
thermal: Use thermal_tripless_zone_device_register()
thermal: core: Add function for registering tripless thermal zones
thermal: core: Clean up headers of thermal zone registration functions
Merge tag 'pm-6.6-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Fix an Intel RAPL power capping driver regression introduced during
the 6.5 development cycle (Srinivas Pandruvada)"
* tag 'pm-6.6-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
powercap: intel_rapl: Fix invalid setting of Power Limit 4
Merge tag 'gpio-fixes-for-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fix from Bartosz Golaszewski:
- fix a regression in irqchip setup in gpio-zynq
* tag 'gpio-fixes-for-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: zynq: restore zynq_gpio_irq_reqres/zynq_gpio_irq_relres callbacks
d5af729dc207 ("PCI: Mark NVIDIA T4 GPUs to avoid bus reset") avoided
Secondary Bus Reset on the T4 because the reset seemed to not work when the
T4 was directly attached to a Root Port.
But NVIDIA thinks the issue is probably related to some issue with the Root
Port, not with the T4. The T4 provides neither PM nor FLR reset, so
masking bus reset compromises this device for assignment scenarios.
Revert d5af729dc207 as requested by Wu Zongyong. This will leave SBR
broken in the specific configuration Wu tested, as it was in v6.5, so Wu
will debug that further.
Merge tag 'sound-fix-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of fixes for 6.6-rc1. All small and easy ones.
- The corrections of the previous PCM iov_iter transitions
- Regression fixes in MIDI 2.0 / USB changes
- Various ASoC codec fixes for Cirrus, Realtek, WCD
- ASoC AMD quirks and ASoC Intel AVS driver workaround"
* tag 'sound-fix-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
ALSA: hda/realtek - ALC287 I2S speaker platform support
ASoC: amd: yc: Fix a non-functional mic on Lenovo 82TL
ASoC: Intel: avs: Provide support for fallback topology
ALSA: seq: Fix snd_seq_expand_var_event() call to user-space
ALSA: usb-audio: Fix potential memory leaks at error path for UMP open
ALSA: hda/cirrus: Fix broken audio on hardware with two CS42L42 codecs.
ASoC: rt5645: NULL pointer access when removing jack
ASoC: amd: yc: Add DMI entries to support Victus by HP Gaming Laptop 15-fb0xxx (8A3E)
MAINTAINERS: Update the MAINTAINERS enties for TEXAS INSTRUMENTS ASoC DRIVERS
ALSA: sb: Fix wrong argument in commented code
ALSA: pcm: Fix error checks of default read/write copy ops
ASoC: Name iov_iter argument as iterator instead of buffer
ASoC: dmaengine: Drop unused iov_iter for process callback
ALSA: hda/tas2781: Use standard clamp() macro
ASoC: cs35l56: Waiting for firmware to boot must be tolerant of I/O errors
ASoC: dt-bindings: fsl_easrc: Add support for imx8mp-easrc
ASoC: cs42l43: Fix missing error code in cs42l43_codec_probe()
ASoC: cs35l45: Rename DACPCM1 Source control
ASoC: cs35l45: Fix "Dead assigment" warning
ASoC: cs35l45: Add support for Chip ID 0x35A460
...
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"The main one is a fix for a broken strscpy() conversion that landed in
the merge window and broke early parsing of the kernel command line.
- Fix an incorrect mask in the CXL PMU driver
- Fix a regression in early parsing of the kernel command line
- Fix an IP checksum OoB access reported by syzbot"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: csum: Fix OoB access in IP checksum code for negative lengths
arm64/sysreg: Fix broken strncpy() -> strscpy() conversion
perf: CXL: fix mismatched number of counters mask
Merge tag 'loongarch-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen:
- Allow usage of LSX/LASX in the kernel, and use them for
SIMD-optimized RAID5/RAID6 routines
- Add Loongson Binary Translation (LBT) extension support
- Add basic KGDB & KDB support
- Add building with kcov coverage
- Add KFENCE (Kernel Electric-Fence) support
- Add KASAN (Kernel Address Sanitizer) support
- Some bug fixes and other small changes
- Update the default config file
* tag 'loongarch-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (25 commits)
LoongArch: Update Loongson-3 default config file
LoongArch: Add KASAN (Kernel Address Sanitizer) support
LoongArch: Simplify the processing of jumping new kernel for KASLR
kasan: Add (pmd|pud)_init for LoongArch zero_(pud|p4d)_populate process
kasan: Add __HAVE_ARCH_SHADOW_MAP to support arch specific mapping
LoongArch: Add KFENCE (Kernel Electric-Fence) support
LoongArch: Get partial stack information when providing regs parameter
LoongArch: mm: Add page table mapped mode support for virt_to_page()
kfence: Defer the assignment of the local variable addr
LoongArch: Allow building with kcov coverage
LoongArch: Provide kaslr_offset() to get kernel offset
LoongArch: Add basic KGDB & KDB support
LoongArch: Add Loongson Binary Translation (LBT) extension support
raid6: Add LoongArch SIMD recovery implementation
raid6: Add LoongArch SIMD syndrome calculation
LoongArch: Add SIMD-optimized XOR routines
LoongArch: Allow usage of LSX/LASX in the kernel
LoongArch: Define symbol 'fault' as a local label in fpu.S
LoongArch: Adjust {copy, clear}_user exception handler behavior
LoongArch: Use static defined zero page rather than allocated
...
projects / mirror_ubuntu-kernels.git / log