Dan Carpenter [Fri, 19 Feb 2021 09:56:32 +0000 (12:56 +0300)]
octeontx2-af: Fix an off by one in rvu_dbg_qsize_write()
This code does not allocate enough memory for the NUL terminator so it
ends up putting it one character beyond the end of the buffer.
Fixes: 8756828a8148 ("octeontx2-af: Add NPA aura and pool contexts to debugfs") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sun, 21 Feb 2021 20:49:32 +0000 (12:49 -0800)]
Merge tag 'perf-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance event updates from Ingo Molnar:
- Add CPU-PMU support for Intel Sapphire Rapids CPUs
- Extend the perf ABI with PERF_SAMPLE_WEIGHT_STRUCT, to offer
two-parameter sampling event feedback. Not used yet, but is intended
for Golden Cove CPU-PMU, which can provide both the instruction
latency and the cache latency information for memory profiling
events.
- Remove experimental, default-disabled perfmon-v4 counter_freezing
support that could only be enabled via a boot option. The hardware is
hopelessly broken, we'd like to make sure nobody starts relying on
this, as it would only end in tears.
- Fix energy/power events on Intel SPR platforms
- Simplify the uprobes resume_execution() logic
- Misc smaller fixes.
* tag 'perf-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/rapl: Fix psys-energy event on Intel SPR platform
perf/x86/rapl: Only check lower 32bits for RAPL energy counters
perf/x86/rapl: Add msr mask support
perf/x86/kvm: Add Cascade Lake Xeon steppings to isolation_ucodes[]
perf/x86/intel: Support CPUID 10.ECX to disable fixed counters
perf/x86/intel: Add perf core PMU support for Sapphire Rapids
perf/x86/intel: Filter unsupported Topdown metrics event
perf/x86/intel: Factor out intel_update_topdown_event()
perf/core: Add PERF_SAMPLE_WEIGHT_STRUCT
perf/intel: Remove Perfmon-v4 counter_freezing support
x86/perf: Use static_call for x86_pmu.guest_get_msrs
perf/x86/intel/uncore: With > 8 nodes, get pci bus die id from NUMA info
perf/x86/intel/uncore: Store the logical die id instead of the physical die id.
x86/kprobes: Do not decode opcode in resume_execution()
Linus Torvalds [Sun, 21 Feb 2021 20:35:04 +0000 (12:35 -0800)]
Merge tag 'sched-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Core scheduler updates:
- Add CONFIG_PREEMPT_DYNAMIC: this in its current form adds the
preempt=none/voluntary/full boot options (default: full), to allow
distros to build a PREEMPT kernel but fall back to close to
PREEMPT_VOLUNTARY (or PREEMPT_NONE) runtime scheduling behavior via
a boot time selection.
There's also the /debug/sched_debug switch to do this runtime.
This feature is implemented via runtime patching (a new variant of
static calls).
The scope of the runtime patching can be best reviewed by looking
at the sched_dynamic_update() function in kernel/sched/core.c.
( Note that the dynamic none/voluntary mode isn't 100% identical,
for example preempt-RCU is available in all cases, plus the
preempt count is maintained in all models, which has runtime
overhead even with the code patching. )
The PREEMPT_VOLUNTARY/PREEMPT_NONE models, used by the vast
majority of distributions, are supposed to be unaffected.
- Fix ignored rescheduling after rcu_eqs_enter(). This is a bug that
was found via rcutorture triggering a hang. The bug is that
rcu_idle_enter() may wake up a NOCB kthread, but this happens after
the last generic need_resched() check. Some cpuidle drivers fix it
by chance but many others don't.
In true 2020 fashion the original bug fix has grown into a 5-patch
scheduler/RCU fix series plus another 16 RCU patches to address the
underlying issue of missed preemption events. These are the initial
fixes that should fix current incarnations of the bug.
- Clean up rbtree usage in the scheduler, by providing & using the
following consistent set of rbtree APIs:
partial-order; less() based:
- rb_add(): add a new entry to the rbtree
- rb_add_cached(): like rb_add(), but for a rb_root_cached
total-order; cmp() based:
- rb_find(): find an entry in an rbtree
- rb_find_add(): find an entry, and add if not found
- rb_find_first(): find the first (leftmost) matching entry
- rb_next_match(): continue from rb_find_first()
- rb_for_each(): iterate a sub-tree using the previous two
- Improve the SMP/NUMA load-balancer: scan for an idle sibling in a
single pass. This is a 4-commit series where each commit improves
one aspect of the idle sibling scan logic.
- Improve the cpufreq cooling driver by getting the effective CPU
utilization metrics from the scheduler
- Improve the fair scheduler's active load-balancing logic by
reducing the number of active LB attempts & lengthen the
load-balancing interval. This improves stress-ng mmapfork
performance.
- Fix CFS's estimated utilization (util_est) calculation bug that can
result in too high utilization values
Misc updates & fixes:
- Fix the HRTICK reprogramming & optimization feature
- Fix SCHED_SOFTIRQ raising race & warning in the CPU offlining code
- Reduce dl_add_task_root_domain() overhead
- Fix uprobes refcount bug
- Process pending softirqs in flush_smp_call_function_from_idle()
- Clean up task priority related defines, remove *USER_*PRIO and
USER_PRIO()
- Simplify the sched_init_numa() deduplication sort
- Documentation updates
- Fix EAS bug in update_misfit_status(), which degraded the quality
of energy-balancing
- Smaller cleanups"
* tag 'sched-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
sched,x86: Allow !PREEMPT_DYNAMIC
entry/kvm: Explicitly flush pending rcuog wakeup before last rescheduling point
entry: Explicitly flush pending rcuog wakeup before last rescheduling point
rcu/nocb: Trigger self-IPI on late deferred wake up before user resume
rcu/nocb: Perform deferred wake up before last idle's need_resched() check
rcu: Pull deferred rcuog wake up to rcu_eqs_enter() callers
sched/features: Distinguish between NORMAL and DEADLINE hrtick
sched/features: Fix hrtick reprogramming
sched/deadline: Reduce rq lock contention in dl_add_task_root_domain()
uprobes: (Re)add missing get_uprobe() in __find_uprobe()
smp: Process pending softirqs in flush_smp_call_function_from_idle()
sched: Harden PREEMPT_DYNAMIC
static_call: Allow module use without exposing static_call_key
sched: Add /debug/sched_preempt
preempt/dynamic: Support dynamic preempt with preempt= boot option
preempt/dynamic: Provide irqentry_exit_cond_resched() static call
preempt/dynamic: Provide preempt_schedule[_notrace]() static calls
preempt/dynamic: Provide cond_resched() and might_resched() static calls
preempt: Introduce CONFIG_PREEMPT_DYNAMIC
static_call: Provide DEFINE_STATIC_CALL_RET0()
...
Linus Torvalds [Sun, 21 Feb 2021 20:12:01 +0000 (12:12 -0800)]
Merge tag 'locking-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Core locking primitives updates:
- Remove mutex_trylock_recursive() from the API - no users left
- Simplify + constify the futex code a bit
Lockdep updates:
- Teach lockdep about local_lock_t
- Add CONFIG_DEBUG_IRQFLAGS=y debug config option to check for
potentially unsafe IRQ mask restoration patterns. (I.e.
calling raw_local_irq_restore() with IRQs enabled.)
- Add wait context self-tests
- Fix graph lock corner case corrupting internal data structures
- Fix noinstr annotations
LKMM updates:
- Simplify the litmus tests
- Documentation fixes
KCSAN updates:
- Re-enable KCSAN instrumentation in lib/random32.c
Linus Torvalds [Sun, 21 Feb 2021 20:04:41 +0000 (12:04 -0800)]
Merge tag 'core-rcu-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"These are the latest RCU updates for v5.12:
- Documentation updates.
- Miscellaneous fixes.
- kfree_rcu() updates: Addition of mem_dump_obj() to provide
allocator return addresses to more easily locate bugs. This has a
couple of RCU-related commits, but is mostly MM. Was pulled in with
akpm's agreement.
- Per-callback-batch tracking of numbers of callbacks, which enables
better debugging information and smarter reactions to large numbers
of callbacks.
- The first round of changes to allow CPUs to be runtime switched
from and to callback-offloaded state.
- CONFIG_PREEMPT_RT-related changes.
- RCU CPU stall warning updates.
- Addition of polling grace-period APIs for SRCU.
- Torture-test and torture-test scripting updates, including a
"torture everything" script that runs rcutorture, locktorture,
scftorture, rcuscale, and refscale. Plus does an allmodconfig
build.
- nolibc fixes for the torture tests"
* tag 'core-rcu-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (130 commits)
percpu_ref: Dump mem_dump_obj() info upon reference-count underflow
rcu: Make call_rcu() print mem_dump_obj() info for double-freed callback
mm: Make mem_obj_dump() vmalloc() dumps include start and length
mm: Make mem_dump_obj() handle vmalloc() memory
mm: Make mem_dump_obj() handle NULL and zero-sized pointers
mm: Add mem_dump_obj() to print source of memory block
tools/rcutorture: Fix position of -lgcc in mkinitrd.sh
tools/nolibc: Fix position of -lgcc in the documented example
tools/nolibc: Emit detailed error for missing alternate syscall number definitions
tools/nolibc: Remove incorrect definitions of __ARCH_WANT_*
tools/nolibc: Get timeval, timespec and timezone from linux/time.h
tools/nolibc: Implement poll() based on ppoll()
tools/nolibc: Implement fork() based on clone()
tools/nolibc: Make getpgrp() fall back to getpgid(0)
tools/nolibc: Make dup2() rely on dup3() when available
tools/nolibc: Add the definition for dup()
rcutorture: Add rcutree.use_softirq=0 to RUDE01 and TASKS01
torture: Maintain torture-specific set of CPUs-online books
torture: Clean up after torture-test CPU hotplugging
rcutorture: Make object_debug also double call_rcu() heap object
...
Linus Torvalds [Sun, 21 Feb 2021 19:55:43 +0000 (11:55 -0800)]
Merge tag 'timers-core-2021-02-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"Time and timer updates:
- Instead of new drivers remove tango, sirf, u300 and atlas drivers
- Add suspend/resume support for microchip pit64b
- The usual fixes, improvements and cleanups here and there"
* tag 'timers-core-2021-02-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timens: Delete no-op time_ns_init()
alarmtimer: Update kerneldoc
clocksource/drivers/timer-microchip-pit64b: Add clocksource suspend/resume
clocksource/drivers/prima: Remove sirf prima driver
clocksource/drivers/atlas: Remove sirf atlas driver
clocksource/drivers/tango: Remove tango driver
clocksource/drivers/u300: Remove the u300 driver
dt-bindings: timer: nuvoton: Clarify that interrupt of timer 0 should be specified
clocksource/drivers/davinci: Move pr_fmt() before the includes
clocksource/drivers/efm32: Drop unused timer code
Linus Torvalds [Sun, 21 Feb 2021 19:53:06 +0000 (11:53 -0800)]
Merge tag 'irq-core-2021-02-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"Updates for the irq subsystem:
- The usual new irq chip driver (Realtek RTL83xx)
- Removal of sirfsoc and tango irq chip drivers
- Conversion of the sun6i chip support to hierarchical irq domains
- The usual fixes, improvements and cleanups all over the place"
* tag 'irq-core-2021-02-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/imx: IMX_INTMUX should not default to y, unconditionally
irqchip/loongson-pch-msi: Use bitmap_zalloc() to allocate bitmap
irqchip/csky-mpintc: Prevent selection on unsupported platforms
irqchip: Add support for Realtek RTL838x/RTL839x interrupt controller
dt-bindings: interrupt-controller: Add Realtek RTL838x/RTL839x support
irqchip/ls-extirq: add IRQCHIP_SKIP_SET_WAKE to the irqchip flags
genirq: Use new tasklet API for resend_tasklet
dt-bindings: qcom,pdc: Add compatible for SM8350
dt-bindings: qcom,pdc: Add compatible for SM8250
irqchip/sun6i-r: Add wakeup support
irqchip/sun6i-r: Use a stacked irqchip driver
dt-bindings: irq: sun6i-r: Add a compatible for the H3
dt-bindings: irq: sun6i-r: Split the binding from sun7i-nmi
irqchip/gic-v3: Fix typos in PMR/RPR SCR_EL3.FIQ handling explanation
irqchip: Remove sirfsoc driver
irqchip: Remove sigma tango driver
Linus Torvalds [Sun, 21 Feb 2021 19:10:39 +0000 (11:10 -0800)]
Merge tag 'for-5.12/io_uring-2021-02-17' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
"Highlights from this cycles are things like request recycling and
task_work optimizations, which net us anywhere from 10-20% of speedups
on workloads that mostly are inline.
This work was originally done to put io_uring under memcg, which adds
considerable overhead. But it's a really nice win as well. Also worth
highlighting is the LOOKUP_CACHED work in the VFS, and using it in
io_uring. Greatly speeds up the fast path for file opens.
Summary:
- Put io_uring under memcg protection. We accounted just the rings
themselves under rlimit memlock before, now we account everything.
- Request cache recycling, persistent across invocations (Pavel, me)
- First part of a cleanup/improvement to buffer registration (Bijan)
- SQPOLL fixes (Hao)
- File registration NULL pointer fixup (Dan)
- LOOKUP_CACHED support for io_uring
- Disable /proc/thread-self/ for io_uring, like we do for /proc/self
- Add Pavel to the io_uring MAINTAINERS entry
- Tons of code cleanups and optimizations (Pavel)
- Support for skip entries in file registration (Noah)"
* tag 'for-5.12/io_uring-2021-02-17' of git://git.kernel.dk/linux-block: (103 commits)
io_uring: tctx->task_lock should be IRQ safe
proc: don't allow async path resolution of /proc/thread-self components
io_uring: kill cached requests from exiting task closing the ring
io_uring: add helper to free all request caches
io_uring: allow task match to be passed to io_req_cache_free()
io-wq: clear out worker ->fs and ->files
io_uring: optimise io_init_req() flags setting
io_uring: clean io_req_find_next() fast check
io_uring: don't check PF_EXITING from syscall
io_uring: don't split out consume out of SQE get
io_uring: save ctx put/get for task_work submit
io_uring: don't duplicate io_req_task_queue()
io_uring: optimise SQPOLL mm/files grabbing
io_uring: optimise out unlikely link queue
io_uring: take compl state from submit state
io_uring: inline io_complete_rw_common()
io_uring: move res check out of io_rw_reissue()
io_uring: simplify iopoll reissuing
io_uring: clean up io_req_free_batch_finish()
io_uring: move submit side state closer in the ring
...
* tag 'for-5.12/drivers-2021-02-17' of git://git.kernel.dk/linux-block: (64 commits)
lightnvm: pblk: Replace guid_copy() with export_guid()/import_guid()
lightnvm: fix unnecessary NULL check warnings
nvme-tcp: fix crash triggered with a dataless request submission
block: Replace lkml.org links with lore
nbd: Convert to DEFINE_SHOW_ATTRIBUTE
nvme: add 48-bit DMA address quirk for Amazon NVMe controllers
nvme-hwmon: rework to avoid devm allocation
nvmet: remove else at the end of the function
nvmet: add nvmet_req_subsys() helper
nvmet: use min of device_path and disk len
nvmet: use invalid cmd opcode helper
nvmet: use invalid cmd opcode helper
nvmet: add helper to report invalid opcode
nvmet: remove extra variable in id-ns handler
nvmet: make nvmet_find_namespace() req based
nvmet: return uniform error for invalid ns
nvmet: set status to 0 in case for invalid nsid
nvmet-fc: add a missing __rcu annotation to nvmet_fc_tgt_assoc.queues
nvme-multipath: set nr_zones for zoned namespaces
nvmet-tcp: fix potential race of tcp socket closing accept_work
...
Linus Torvalds [Sun, 21 Feb 2021 19:02:48 +0000 (11:02 -0800)]
Merge tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block
Pull core block updates from Jens Axboe:
"Another nice round of removing more code than what is added, mostly
due to Christoph's relentless pursuit of tech debt removal/cleanups.
This pull request contains:
- Two series of BFQ improvements (Paolo, Jan, Jia)
- Block iov_iter improvements (Pavel)
- bsg error path fix (Pan)
- blk-mq scheduler improvements (Jan)
- -EBUSY discard fix (Jan)
- bvec allocation improvements (Ming, Christoph)
- bio allocation and init improvements (Christoph)
- Store bdev pointer in bio instead of gendisk + partno (Christoph)
- Block trace point cleanups (Christoph)
- hard read-only vs read-only split (Christoph)
- Block based swap cleanups (Christoph)
- Zoned write granularity support (Damien)
- Various fixes/tweaks (Chunguang, Guoqing, Lei, Lukas, Huhai)"
* tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block: (104 commits)
mm: simplify swapdev_block
sd_zbc: clear zone resources for non-zoned case
block: introduce blk_queue_clear_zone_settings()
zonefs: use zone write granularity as block size
block: introduce zone_write_granularity limit
block: use blk_queue_set_zoned in add_partition()
nullb: use blk_queue_set_zoned() to setup zoned devices
nvme: cleanup zone information initialization
block: document zone_append_max_bytes attribute
block: use bi_max_vecs to find the bvec pool
md/raid10: remove dead code in reshape_request
block: mark the bio as cloned in bio_iov_bvec_set
block: set BIO_NO_PAGE_REF in bio_iov_bvec_set
block: remove a layer of indentation in bio_iov_iter_get_pages
block: turn the nr_iovecs argument to bio_alloc* into an unsigned short
block: remove the 1 and 4 vec bvec_slabs entries
block: streamline bvec_alloc
block: factor out a bvec_alloc_gfp helper
block: move struct biovec_slab to bio.c
block: reuse BIO_INLINE_VECS for integrity bvecs
...
Linus Torvalds [Sun, 21 Feb 2021 18:40:34 +0000 (10:40 -0800)]
Merge tag 'oprofile-removal-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux
Pull oprofile and dcookies removal from Viresh Kumar:
"Remove oprofile and dcookies support
The 'oprofile' user-space tools don't use the kernel OPROFILE support
any more, and haven't in a long time. User-space has been converted to
the perf interfaces.
The dcookies stuff is only used by the oprofile code. Now that
oprofile's support is getting removed from the kernel, there is no
need for dcookies as well.
Remove kernel's old oprofile and dcookies support"
* tag 'oprofile-removal-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux:
fs: Remove dcookies support
drivers: Remove CONFIG_OPROFILE support
arch: xtensa: Remove CONFIG_OPROFILE support
arch: x86: Remove CONFIG_OPROFILE support
arch: sparc: Remove CONFIG_OPROFILE support
arch: sh: Remove CONFIG_OPROFILE support
arch: s390: Remove CONFIG_OPROFILE support
arch: powerpc: Remove oprofile
arch: powerpc: Stop building and using oprofile
arch: parisc: Remove CONFIG_OPROFILE support
arch: mips: Remove CONFIG_OPROFILE support
arch: microblaze: Remove CONFIG_OPROFILE support
arch: ia64: Remove rest of perfmon support
arch: ia64: Remove CONFIG_OPROFILE support
arch: hexagon: Don't select HAVE_OPROFILE
arch: arc: Remove CONFIG_OPROFILE support
arch: arm: Remove CONFIG_OPROFILE support
arch: alpha: Remove CONFIG_OPROFILE support
Linus Torvalds [Sun, 21 Feb 2021 18:34:36 +0000 (10:34 -0800)]
Merge tag 'xfs-5.12-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Darrick Wong:
"There's a lot going on this time, which seems about right for this
drama-filled year.
Community developers added some code to speed up freezing when
read-only workloads are still running, refactored the logging code,
added checks to prevent file extent counter overflow, reduced iolock
cycling to speed up fsync and gc scans, and started the slow march
towards supporting filesystem shrinking.
There's a huge refactoring of the internal speculative preallocation
garbage collection code which fixes a bunch of bugs, makes the gc
scheduling per-AG and hence multithreaded, and standardizes the retry
logic when we try to reserve space or quota, can't, and want to
trigger a gc scan. We also enable multithreaded quotacheck to reduce
mount times further. This is also preparation for background file gc,
which may or may not land for 5.13.
We also fixed some deadlocks in the rename code, fixed a quota
accounting leak when FSSETXATTR fails, restored the behavior that
write faults to an mmap'd region actually cause a SIGBUS, fixed a bug
where sgid directory inheritance wasn't quite working properly, and
fixed a bug where symlinks weren't working properly in ecryptfs. We
also now advertise the inode btree counters feature that was
introduced two cycles ago.
Summary:
- Fix an ABBA deadlock when renaming files on overlayfs.
- Make sure that we can't overflow the inode extent counters when
adding to or removing extents from a file.
- Make directory sgid inheritance work the same way as all the other
filesystems.
- Don't drain the buffer cache on freeze and ro remount, which should
reduce the amount of time if read-only workloads are continuing
during the freeze.
- Fix a bug where symlink size isn't reported to the vfs in ecryptfs.
- Disentangle log cleaning from log covering. This refactoring sets
us up for future changes to the log, though for now it simply means
that we can use covering for freezes, and cleaning becomes
something we only do at unmount.
- Speed up file fsyncs by reducing iolock cycling.
- Fix delalloc blocks leaking when changing the project id fails
because of input validation errors in FSSETXATTR.
- Fix oversized quota reservation when converting unwritten extents
during a DAX write.
- Create a transaction allocation helper function to standardize the
idiom of allocating a transaction, reserving blocks, locking
inodes, and reserving quota. Replace all the open-coded logic for
file creation, file ownership changes, and file modifications to
use them.
- Actually shut down the fs if the incore quota reservations get
corrupted.
- Fix background block garbage collection scans to not block and to
actually clean out CoW staging extents properly.
- Run block gc scans when we run low on project quota.
- Use the standardized transaction allocation helpers to make it so
that ENOSPC and EDQUOT errors during reservation will back out,
invoke the block gc scanner, and try again. This is preparation for
introducing background inode garbage collection in the next cycle.
- Combine speculative post-EOF block garbage collection with
speculative copy on write block garbage collection.
- Enable multithreaded quotacheck.
- Allow sysadmins to tweak the CPU affinities and maximum concurrency
levels of quotacheck and background blockgc worker pools.
- Expose the inode btree counter feature in the fs geometry ioctl.
- Cleanups of the growfs code in preparation for starting work on
filesystem shrinking.
- Fix all the bloody gcc warnings that the maintainer knows about. :P
- Fix a RST syntax error.
- Don't trigger bmbt corruption assertions after the fs shuts down.
- Restore behavior of forcing SIGBUS on a shut down filesystem when
someone triggers a mmap write fault (or really, any buffered
write)"
* tag 'xfs-5.12-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (85 commits)
xfs: consider shutdown in bmapbt cursor delete assert
xfs: fix boolreturn.cocci warnings
xfs: restore shutdown check in mapped write fault path
xfs: fix rst syntax error in admin guide
xfs: fix incorrect root dquot corruption error when switching group/project quota types
xfs: get rid of xfs_growfs_{data,log}_t
xfs: rename `new' to `delta' in xfs_growfs_data_private()
libxfs: expose inobtcount in xfs geometry
xfs: don't bounce the iolock between free_{eof,cow}blocks
xfs: expose the blockgc workqueue knobs publicly
xfs: parallelize block preallocation garbage collection
xfs: rename block gc start and stop functions
xfs: only walk the incore inode tree once per blockgc scan
xfs: consolidate the eofblocks and cowblocks workers
xfs: consolidate incore inode radix tree posteof/cowblocks tags
xfs: remove trivial eof/cowblocks functions
xfs: hide xfs_icache_free_cowblocks
xfs: hide xfs_icache_free_eofblocks
xfs: relocate the eofb/cowb workqueue functions
xfs: set WQ_SYSFS on all workqueues in debug mode
...
Linus Torvalds [Sun, 21 Feb 2021 18:29:20 +0000 (10:29 -0800)]
Merge tag 'iomap-5.12-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull iomap updates from Darrick Wong:
"The big change in this cycle is some new code to make it possible for
XFS to try unaligned directio overwrites without taking locks. If the
block is fully written and within EOF (i.e. doesn't require any
further fs intervention) then we can let the unlocked write proceed.
If not, we fall back to synchronizing direct writes.
Summary:
- Adjust the final parameter of iomap_dio_rw.
- Add a new flag to request that iomap directio writes return EAGAIN
if the write is not a pure overwrite within EOF; this will be used
to reduce lock contention with unaligned direct writes on XFS.
- Amend XFS' directio code to eliminate exclusive locking for
unaligned direct writes if the circumstances permit"
* tag 'iomap-5.12-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: reduce exclusive locking on unaligned dio
xfs: split the unaligned DIO write code out
xfs: improve the reflink_bounce_dio_write tracepoint
xfs: simplify the read/write tracepoints
xfs: remove the buffered I/O fallback assert
xfs: cleanup the read/write helper naming
xfs: make xfs_file_aio_write_checks IOCB_NOWAIT-aware
xfs: factor out a xfs_ilock_iocb helper
iomap: add a IOMAP_DIO_OVERWRITE_ONLY flag
iomap: pass a flags argument to iomap_dio_rw
iomap: rename the flags variable in __iomap_dio_rw
Linus Torvalds [Sun, 21 Feb 2021 18:25:24 +0000 (10:25 -0800)]
Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fsverity updates from Eric Biggers:
"Add an ioctl which allows reading fs-verity metadata from a file.
This is useful when a file with fs-verity enabled needs to be served
somewhere, and the other end wants to do its own fs-verity compatible
verification of the file. See the commit messages for details.
This new ioctl has been tested using new xfstests I've written for it"
* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
fs-verity: support reading signature with ioctl
fs-verity: support reading descriptor with ioctl
fs-verity: support reading Merkle tree with ioctl
fs-verity: add FS_IOC_READ_VERITY_METADATA ioctl
fs-verity: don't pass whole descriptor to fsverity_verify_signature()
fs-verity: factor out fsverity_get_descriptor()
Linus Torvalds [Sun, 21 Feb 2021 18:22:20 +0000 (10:22 -0800)]
Merge tag 'nfsd-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd updates from Chuck Lever:
- Update NFSv2 and NFSv3 XDR decoding functions
- Further improve support for re-exporting NFS mounts
- Convert NFSD stats to per-CPU counters
- Add batch Receive posting to the server's RPC/RDMA transport
* tag 'nfsd-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (65 commits)
nfsd: skip some unnecessary stats in the v4 case
nfs: use change attribute for NFS re-exports
NFSv4_2: SSC helper should use its own config.
nfsd: cstate->session->se_client -> cstate->clp
nfsd: simplify nfsd4_check_open_reclaim
nfsd: remove unused set_client argument
nfsd: find_cpntf_state cleanup
nfsd: refactor set_client
nfsd: rename lookup_clientid->set_client
nfsd: simplify nfsd_renew
nfsd: simplify process_lock
nfsd4: simplify process_lookup1
SUNRPC: Correct a comment
svcrdma: DMA-sync the receive buffer in svc_rdma_recvfrom()
svcrdma: Reduce Receive doorbell rate
svcrdma: Deprecate stat variables that are no longer used
svcrdma: Restore read and write stats
svcrdma: Convert rdma_stat_sq_starve to a per-CPU counter
svcrdma: Convert rdma_stat_recv to a per-CPU counter
svcrdma: Refactor svc_rdma_init() and svc_rdma_clean_up()
...
Linus Torvalds [Sun, 21 Feb 2021 18:19:34 +0000 (10:19 -0800)]
Merge tag 'erofs-for-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"This contains a somewhat important but rarely reproduced fix reported
month ago for platforms which have weak memory model (e.g. arm64).
The root cause is that test_bit/set_bit atomic operations are actually
implemented in relaxed forms, and uninitialized fields governed by an
atomic bit could be observed in advance due to memory reordering thus
memory barrier pairs should be used.
There is also a trivial fix of crafted blkszbits generated by
syzkaller.
Summary:
- fix shift-out-of-bounds of crafted blkszbits generated by syzkaller
- ensure initialized fields can only be observed after bit is set"
* tag 'erofs-for-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: initialized fields can only be observed after bit is set
erofs: fix shift-out-of-bounds of blkszbits
Linus Torvalds [Sun, 21 Feb 2021 18:09:32 +0000 (10:09 -0800)]
Merge tag 'f2fs-for-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"We've added two major features: 1) compression level and 2)
checkpoint_merge, in this round.
Compression level expands 'compress_algorithm' mount option to accept
parameter as format of <algorithm>:<level>, by this way, it gives a
way to allow user to do more specified config on lz4 and zstd
compression level, then f2fs compression can provide higher compress
ratio.
checkpoint_merge creates a kernel daemon and makes it to merge
concurrent checkpoint requests as much as possible to eliminate
redundant checkpoint issues. Plus, we can eliminate the sluggish issue
caused by slow checkpoint operation when the checkpoint is done in a
process context in a cgroup having low i/o budget and cpu shares.
Enhancements:
- add compress level for lz4 and zstd in mount option
- checkpoint_merge mount option
- deprecate f2fs_trace_io
Bug fixes:
- flush data when enabling checkpoint back
- handle corner cases of mount options
- missing ACL update and lock for I_LINKABLE flag
- attach FIEMAP_EXTENT_MERGED in f2fs_fiemap
- fix potential deadlock in compression flow
- fix wrong submit_io condition
As usual, we've cleaned up many code flows and fixed minor bugs"
* tag 'f2fs-for-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (32 commits)
Documentation: f2fs: fix typo s/automaic/automatic
f2fs: give a warning only for readonly partition
f2fs: don't grab superblock freeze for flush/ckpt thread
f2fs: add ckpt_thread_ioprio sysfs node
f2fs: introduce checkpoint_merge mount option
f2fs: relocate inline conversion from mmap() to mkwrite()
f2fs: fix a wrong condition in __submit_bio
f2fs: remove unnecessary initialization in xattr.c
f2fs: fix to avoid inconsistent quota data
f2fs: flush data when enabling checkpoint back
f2fs: deprecate f2fs_trace_io
f2fs: Remove readahead collision detection
f2fs: remove unused stat_{inc, dec}_atomic_write
f2fs: introduce sb_status sysfs node
f2fs: fix to use per-inode maxbytes
f2fs: compress: fix potential deadlock
libfs: unexport generic_ci_d_compare() and generic_ci_d_hash()
f2fs: fix to set/clear I_LINKABLE under i_lock
f2fs: fix null page reference in redirty_blocks
f2fs: clean up post-read processing
...
Linus Torvalds [Sun, 21 Feb 2021 18:00:39 +0000 (10:00 -0800)]
Merge tag 'for-5.12-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"This brings updates of space handling, performance improvements or bug
fixes. The subpage block size and zoned mode features have reached
state where they're usable but with limitations.
Performance or related:
- do not block on deleted block group mutex in the cleaner, avoids
some long stalls
- improved flushing: make it work better with ticket space
reservations and avoid excessive transaction commits in some
scenarios, slightly improves throughput for random write load
- preemptive background flushing: separate the logic from ticket
reservations, improve the accounting and decisions when to flush in
low space conditions
- less lock contention related to running delayed refs, let just one
thread do the flushing when there are many inside transaction
commit
- dbench workload improvements: avoid unnecessary work when logging
inodes, fewer fallbacks to transaction commit and thus less waiting
for it (+7% throughput, -20% latency)
Core:
- subpage block size
- currently read-only support
- refactor and generalize code where sectorsize is assumed to be
page size, add the subpage handling everywhere
- the read-write support is on the way, page sizes are still
limited to 4K or 64K
- zoned mode, first working version but with limitations
- SMR/ZBC/ZNS friendly allocation mode, utilizing the "no fixed
location for structures" and chunked allocation
- superblock as the only fixed data structure needs special
handling, uses 2 consecutive zones as a ring buffer
- tree-log support with a dedicated block group to avoid unordered
writes
- emulated zones on non-zoned devices
- not yet working
- all non-single block group profiles, requires more zone write
pointer synchronization between the multiple block groups
- fitrim due to dependency on space cache, can be implemented
Fixes:
- ref-verify: proper tree owner and node level tracking
- fix pinned byte accounting, causing some early ENOSPC now more
likely due to other changes in delayed refs
Other:
- error handling fixes and improvements
- more error injection points
- more function documentation
- more and updated tracepoints
- subset of W=1 checked by default
- update comments to allow more automatic kdoc parameter checks"
* tag 'for-5.12-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (144 commits)
btrfs: zoned: enable to mount ZONED incompat flag
btrfs: zoned: deal with holes writing out tree-log pages
btrfs: zoned: reorder log node allocation on zoned filesystem
btrfs: zoned: serialize log transaction on zoned filesystems
btrfs: zoned: extend zoned allocator to use dedicated tree-log block group
btrfs: split alloc_log_tree()
btrfs: zoned: relocate block group to repair IO failure in zoned filesystems
btrfs: zoned: enable relocation on a zoned filesystem
btrfs: zoned: support dev-replace in zoned filesystems
btrfs: zoned: implement copying for zoned device-replace
btrfs: zoned: implement cloning for zoned device-replace
btrfs: zoned: mark block groups to copy for device-replace
btrfs: zoned: do not use async metadata checksum on zoned filesystems
btrfs: zoned: wait for existing extents before truncating
btrfs: zoned: serialize metadata IO
btrfs: zoned: introduce dedicated data write path for zoned filesystems
btrfs: zoned: enable zone append writing for direct IO
btrfs: zoned: use ZONE_APPEND write for zoned mode
btrfs: save irq flags when looking up an ordered extent
btrfs: zoned: cache if block group is on a sequential zone
...
Linus Torvalds [Sun, 21 Feb 2021 17:57:30 +0000 (09:57 -0800)]
Merge tag 'jfs-5.12' of git://github.com/kleikamp/linux-shaggy
Pull jfs updates from David Kleikamp:
"A few jfs fixes"
* tag 'jfs-5.12' of git://github.com/kleikamp/linux-shaggy:
fs/jfs: fix potential integer overflow on shift of a int
jfs: turn diLog(), dataLog() and txLog() into void functions
JFS: more checks for invalid superblock
Linus Torvalds [Sun, 21 Feb 2021 17:42:18 +0000 (09:42 -0800)]
Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull namei updates from Al Viro:
"Most of that pile is LOOKUP_CACHED series; the rest is a couple of
misc cleanups in the general area...
There's a minor bisect hazard in the end of series, and normally I
would've just folded the fix into the previous commit, but this branch
is shared with Jens' tree, with stuff on top of it in there, so that
would've required rebases outside of vfs.git"
* 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix handling of nd->depth on LOOKUP_CACHED failures in try_to_unlazy*
fs: expose LOOKUP_CACHED through openat2() RESOLVE_CACHED
fs: add support for LOOKUP_CACHED
saner calling conventions for unlazy_child()
fs: make unlazy_walk() error handling consistent
fs/namei.c: Remove unlikely of status being -ECHILD in lookup_fast()
do_tmpfile(): don't mess with finish_open()
Linus Torvalds [Sun, 21 Feb 2021 17:29:23 +0000 (09:29 -0800)]
Merge branch 'work.elf-compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull ELF compat updates from Al Viro:
"Sanitizing ELF compat support, especially for triarch architectures:
- X32 handling cleaned up
- MIPS64 uses compat_binfmt_elf.c both for O32 and N32 now
- Kconfig side of things regularized
Eventually I hope to have compat_binfmt_elf.c killed, with both native
and compat built from fs/binfmt_elf.c, with -DELF_BITS={64,32} passed
by kbuild, but that's a separate story - not included here"
* 'work.elf-compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
get rid of COMPAT_ELF_EXEC_PAGESIZE
compat_binfmt_elf: don't bother with undef of ELF_ARCH
Kconfig: regularize selection of CONFIG_BINFMT_ELF
mips compat: switch to compat_binfmt_elf.c
mips: don't bother with ELF_CORE_EFLAGS
mips compat: don't bother with ELF_ET_DYN_BASE
mips: KVM_GUEST makes no sense for 64bit builds...
mips: kill unused definitions in binfmt_elf[on]32.c
mips binfmt_elf*32.c: use elfcore-compat.h
x32: make X32, !IA32_EMULATION setups able to execute x32 binaries
[amd64] clean PRSTATUS_SIZE/SET_PR_FPVALID up properly
elf_prstatus: collect the common part (everything before pr_reg) into a struct
binfmt_elf: partially sanitize PRSTATUS_SIZE and SET_PR_FPVALID
Linus Torvalds [Sun, 21 Feb 2021 17:25:32 +0000 (09:25 -0800)]
Merge branch 'work.sendfile' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull sendfile updates from Al Viro:
"Make sendfile() to pipe destination do the right thing, should make
'fs/pipe: allow sendfile() to pipe again' redundant"
* 'work.sendfile' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
teach sendfile(2) to handle send-to-pipe directly
take the guts of file-to-pipe splice into a helper function
do_splice_to(): move the logics for limiting the read length in
Linus Torvalds [Sun, 21 Feb 2021 05:56:49 +0000 (21:56 -0800)]
Merge tag 'pnp-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull PNP updates from Rafael Wysocki:
"These make two janitorial changes of the code.
Specifics:
- Add printf annotation to a logging function (Tom Rix)
- Use DEFINE_SPINLOCK() for defining a spinlock so as to initialize
it statically (Zheng Yongjun)"
* tag 'pnp-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PNP: pnpbios: Use DEFINE_SPINLOCK() for spinlock
PNP: add printf attribute to log function
Linus Torvalds [Sun, 21 Feb 2021 05:50:59 +0000 (21:50 -0800)]
Merge tag 'acpi-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision 20210105, fix and clean up the handling of device properties, add
support for setting global profile of the platform, clean up device
enumeration, the CPPC library, the APEI support and more, update the
documentation, consolidate the printing of messages in several places
and make assorted janitorial changes.
Specifics:
- Update ACPICA code in the kernel to upstream revision 20201113 with
changes as follows:
* Remove the MTMR (Mid-Timer) table (Al Stone).
* Remove the VRTC table (Al Stone).
* Add type casts for string functions (Bob Moore).
* Update all copyrights to 2021 (Bob Moore).
* Fix exception code class checks (Maximilian Luz).
* Clean up exception code class checks (Maximilian Luz).
* Fix -Wfallthrough (Nick Desaulniers).
- Add support for setting and reading global profile of the platform
along with documentation (Mark Pearson, Hans de Goede, Jiaxun
Yang).
- Fix fwnode properties matching and clean up the code handling
device properties and its documentation (Rafael Wysocki, Andy
Shevchenko).
- Clean up ACPI-based device enumeration code (Rafael Wysocki).
- Clean up the CPPC support library code (Ionela Voinescu).
- Clean up the APEI support code (Yang Li, Yazen Ghannam).
Linus Torvalds [Sun, 21 Feb 2021 05:42:18 +0000 (21:42 -0800)]
Merge tag 'pm-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These add a new power capping facility allowing aggregate power
constraints to be applied to sets of devices in a distributed manner,
add a new CPU ID to the RAPL power capping driver and improve it, drop
a cpufreq driver belonging to a platform that is not supported any
more, drop two redundant cpufreq driver flags, update cpufreq drivers
(intel_pstate, brcmstb-avs, qcom-hw), update the operating performance
points (OPP) framework (code cleanups, new helpers, devfreq-related
modifications), clean up devfreq, extend the PM clock layer, update
the cpupower utility and make assorted janitorial changes.
Specifics:
- Add new power capping facility called DTPM (Dynamic Thermal Power
Management), based on the existing power capping framework, to
allow aggregate power constraints to be applied to sets of devices
in a distributed manner, along with a CPU backend driver based on
the Energy Model (Daniel Lezcano, Dan Carpenter, Colin Ian King).
- Add AlderLake Mobile support to the Intel RAPL power capping driver
and make it use the topology interface when laying out the system
topology (Zhang Rui, Yunfeng Ye).
- Drop the cpufreq tango driver belonging to a platform that is not
supported any more (Arnd Bergmann).
- Drop the redundant CPUFREQ_STICKY and CPUFREQ_PM_NO_WARN cpufreq
driver flags (Viresh Kumar).
- Update cpufreq drivers:
* Fix max CPU frequency discovery in the intel_pstate driver and
make janitorial changes in it (Chen Yu, Rafael Wysocki, Nigel
Christian).
* Fix resource leaks in the brcmstb-avs-cpufreq driver (Christophe
JAILLET).
* Make the tegra20 driver use the resource-managed API (Dmitry
Osipenko).
* Enable boost support in the qcom-hw driver (Shawn Guo).
- Update the operating performance points (OPP) framework:
* Clean up the OPP core (Dmitry Osipenko, Viresh Kumar).
* Extend the OPP API by adding new helpers to it (Dmitry Osipenko,
Viresh Kumar).
* Allow required OPPs to be used for devfreq devices and update
the devfreq governor code accordingly (Saravana Kannan).
* Prepare the framework for introducing new dev_pm_opp_set_opp()
helper (Viresh Kumar).
* Drop dev_pm_opp_set_bw() and update related drivers (Viresh
Kumar).
* Allow lazy linking of required-OPPs (Viresh Kumar).
- Simplify and clean up devfreq somewhat (Lukasz Luba, Yang Li,
Pierre Kuo).
- Update the generic power domains (genpd) framework:
* Use device's next wakeup to determine domain idle state (Lina
Iyer).
* Improve initialization and debug (Dmitry Osipenko).
* Simplify computations (Abaci Team).
- Make janitorial changes in the core code handling system sleep and
PM-runtime (Bhaskar Chowdhury, Bjorn Helgaas, Rikard Falkeborn,
Zqiang).
- Update the MAINTAINERS entry for the exynos cpuidle driver and drop
DEBUG definition from intel_idle (Krzysztof Kozlowski, Tom Rix).
- Extend the PM clock layer to cover clocks that must sleep (Nicolas
Pitre).
- Update the cpupower utility:
* Update cpupower command, add support for AMD family 0x19 and
clean up the code to remove many of the family checks to make
future family updates easier (Nathan Fontenot, Robert Richter).
* Add Makefile dependencies for install targets to allow building
cpupower in parallel rather than serially (Ivan Babrou).
- Make janitorial changes in power management Kconfig (Lukasz Luba)"
* tag 'pm-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (89 commits)
MAINTAINERS: cpuidle: exynos: include header in file pattern
powercap: intel_rapl: Use topology interface in rapl_init_domains()
powercap: intel_rapl: Use topology interface in rapl_add_package()
PM: sleep: Constify static struct attribute_group
PM: Kconfig: remove unneeded "default n" options
PM: EM: update Kconfig description and drop "default n" option
cpufreq: Remove unused flag CPUFREQ_PM_NO_WARN
cpufreq: Remove CPUFREQ_STICKY flag
PM / devfreq: Add required OPPs support to passive governor
PM / devfreq: Cache OPP table reference in devfreq
OPP: Add function to look up required OPP's for a given OPP
PM / devfreq: rk3399_dmc: Remove unneeded semicolon
opp: Replace ENOTSUPP with EOPNOTSUPP
opp: Fix "foo * bar" should be "foo *bar"
opp: Don't ignore clk_get() errors other than -ENOENT
opp: Update bandwidth requirements based on scaling up/down
opp: Allow lazy-linking of required-opps
opp: Remove dev_pm_opp_set_bw()
devfreq: tegra30: Migrate to dev_pm_opp_set_opp()
drm: msm: Migrate to dev_pm_opp_set_opp()
...
Linus Torvalds [Sun, 21 Feb 2021 05:36:51 +0000 (21:36 -0800)]
Merge tag 'staging-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO driver updates from Greg KH:
"Here is the "big" set of staging and IIO driver patches for 5.12-rc1.
Nothing really huge in here, the number of staging tree patches has
gone down for a bit, maybe there's only so much churn to happen in
here at the moment.
The IIO changes are:
- new drivers
- new DT bindings
- new iio driver features
with full details in the shortlog.
The staging driver patches are just a lot of tiny coding style
cleanups, along with some semi-larger hikey driver cleanups as those
are _almost_ good enough to get out of the staging tree, but will
probably have to wait until 5.13 to have happen.
All of these have been in linux-next with no reported issues"
* tag 'staging-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (189 commits)
staging: hikey9xx: Fix alignment of function parameters
staging: greybus: Fixed a misspelling in hid.c
staging: wimax/i2400m: fix some byte order issues found by sparse
staging: wimax: i2400m: fix some incorrect type warnings
staging: greybus: minor code style fix
staging:wlan-ng: use memdup_user instead of kmalloc/copy_from_user
staging:r8188eu: use IEEE80211_FCTL_* kernel definitions
staging: rtl8192e: remove multiple blank lines
staging: greybus: Fixed alignment issue in hid.c
staging: wfx: remove unused included header files
staging: nvec: minor coding style fix
staging: wimax: Fix some coding style problem
staging: fbtft: add tearing signal detect
staging: vt6656: Fixed issue with alignment in rf.c
staging: qlge: Remove duplicate word in comment
staging: rtl8723bs: remove obsolete commented out code
staging: rtl8723bs: fix function comments to follow kernel-doc
staging: wfx: avoid defining array of flexible struct
staging: rtl8723bs: Replace one-element array with flexible-array member in struct ndis_80211_var_ie
staging: Replace lkml.org links with lore
...
Linus Torvalds [Sun, 21 Feb 2021 05:32:37 +0000 (21:32 -0800)]
Merge tag 'usb-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB and Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver changes for
5.12-rc1.
It's been an active set of development in these subsystems for the
past few months:
- loads of typec features added for new hardware
- xhci features and bugfixes
- dwc3 features added for more hardware support
- dwc2 fixes and new hardware support
- cdns3 driver updates for more hardware support
- gadget driver cleanups and minor fixes
- usb-serial fixes, new driver, and more devices supported
- thunderbolt feature additions for new hardware
- lots of other tiny fixups and additions
The chrome driver changes are in here as well, as they depended on
some of the typec changes, and the maintainer acked them.
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (300 commits)
dt-bindings: usb: mediatek: musb: add mt8516 compatbile
dt-bindings: usb: mtk-xhci: add compatible for mt2701 and mt7623
dt-bindings: usb: mtk-xhci: add optional assigned clock properties
Documentation: connector: Update the description of sink-vdos
usb: misc: usb3503: Fix logic in usb3503_init()
dt-bindings: usb: usb-device: fix typo in required properties
usb: Replace lkml.org links with lore
dt-bindings: usb: dwc3: add description for rk3328
dt-bindings: usb: convert rockchip,dwc3.txt to yaml
usb: quirks: add quirk to start video capture on ELMO L-12F document camera reliable
USB: quirks: sort quirk entries
USB: serial: drop bogus to_usb_serial_port() checks
USB: serial: make remove callback return void
USB: serial: drop if with an always false condition
usb: gadget: Assign boolean values to a bool variable
usb: typec: tcpm: Get Sink VDO from fwnode
dt-bindings: connector: Add SVDM VDO properties
usb: typec: displayport: Fill the negotiated SVDM Version in the header
usb: typec: ucsi: Determine common SVDM Version
usb: typec: tcpm: Determine common SVDM Version
...
Linus Torvalds [Sun, 21 Feb 2021 05:28:04 +0000 (21:28 -0800)]
Merge tag 'tty-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the big set of tty/serial driver changes for 5.12-rc1.
Nothing huge, just lots of good cleanups and additions:
- n_tty line discipline cleanups
- vt core cleanups and reworks to make the code more "modern"
- stm32 driver additions
- tty led support added to the tty core and led layer
- minor serial driver fixups and additions
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (54 commits)
serial: core: Remove BUG_ON(in_interrupt()) check
vt_ioctl: Remove in_interrupt() check
dt-bindings: serial: imx: Switch to my personal address
vt: keyboard, use new API for keyboard_tasklet
serial: stm32: improve platform_get_irq condition handling in init_port
serial: ifx6x60: Remove driver for deprecated platform
tty: fix up iterate_tty_read() EOVERFLOW handling
tty: fix up hung_up_tty_read() conversion
tty: fix up hung_up_tty_write() conversion
tty: teach the n_tty ICANON case about the new "cookie continuations" too
tty: teach n_tty line discipline about the new "cookie continuations"
tty: clean up legacy leftovers from n_tty line discipline
tty: implement read_iter
tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer
serial: remove sirf prima/atlas driver
serial: mxs-auart: Remove <asm/cacheflush.h>
serial: mxs-auart: Remove serial_mxs_probe_dt()
serial: fsl_lpuart: Use of_device_get_match_data()
dt-bindings: serial: renesas,hscif: Add r8a779a0 support
tty: serial: Drop unused efm32 serial driver
...
Linus Torvalds [Sun, 21 Feb 2021 05:15:00 +0000 (21:15 -0800)]
tty: protect tty_write from odd low-level tty disciplines
Al root-caused a new warning from syzbot to the ttyprintk tty driver
returning a write count larger than the data the tty layer actually gave
it. Which confused the tty write code mightily, and with the new
iov_iter based code, caused a WARNING in iov_iter_revert().
syzbot correctly bisected the source of the new warning to commit 9bb48c82aced ("tty: implement write_iter"), but the oddity goes back
much further, it just didn't get caught by anything before.
Linus Torvalds [Sun, 21 Feb 2021 04:50:27 +0000 (20:50 -0800)]
Merge tag 'x86_asm_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Borislav Petkov:
"Annotate new MMIO-accessing insn wrappers' arguments with __iomem"
* tag 'x86_asm_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm: Add a missing __iomem annotation in enqcmds()
x86/asm: Annotate movdir64b()'s dst argument with __iomem
Linus Torvalds [Sun, 21 Feb 2021 04:44:37 +0000 (20:44 -0800)]
Merge tag 'x86_build_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 build updates from Borislav Petkov:
- Treat R_386_PLT32 relocations like R_386_PC32 ones when building
- Add documentation about "make kvm_guest/xen.config" in "make help"
output
* tag 'x86_build_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/build: Treat R_386_PLT32 relocation as R_386_PC32
x86/build: Realign archhelp
x86/build: Add {kvm_guest,xen}.config targets to make help's output
Linus Torvalds [Sun, 21 Feb 2021 04:39:04 +0000 (20:39 -0800)]
Merge tag 'x86_cache_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 resource control updates from Borislav Petkov:
"Avoid IPI-ing a task in certain cases and prevent load/store tearing
when accessing a task's resctrl fields concurrently"
* tag 'x86_cache_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/resctrl: Apply READ_ONCE/WRITE_ONCE to task_struct.{rmid,closid}
x86/resctrl: Use task_curr() instead of task_struct->on_cpu to prevent unnecessary IPI
x86/resctrl: Add printf attribute to log function
Linus Torvalds [Sun, 21 Feb 2021 04:16:52 +0000 (20:16 -0800)]
Merge tag 'x86_cpu_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 CPUID cleanup from Borislav Petkov:
"Assign a dedicated feature word to a CPUID leaf which is widely used"
* tag 'x86_cpu_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpufeatures: Assign dedicated feature word for CPUID_0x8000001F[EAX]
Linus Torvalds [Sun, 21 Feb 2021 04:07:44 +0000 (20:07 -0800)]
Merge tag 'x86_fpu_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 FPU updates from Borislav Petkov:
"x86 fpu usage optimization and cleanups:
- make 64-bit kernel code which uses 387 insns request a x87 init
(FNINIT) explicitly when using the FPU
- misc cleanups"
* tag 'x86_fpu_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu/xstate: Use sizeof() instead of a constant
x86/fpu/64: Don't FNINIT in kernel_fpu_begin()
x86/fpu: Make the EFI FPU calling convention explicit
- Another initial cleanup - more to follow - to the fault handling
code.
- Other minor cleanups and corrections.
* tag 'x86_mm_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
x86/{fault,efi}: Fix and rename efi_recover_from_page_fault()
x86/fault: Don't run fixups for SMAP violations
x86/fault: Don't look for extable entries for SMEP violations
x86/fault: Rename no_context() to kernelmode_fixup_or_oops()
x86/fault: Bypass no_context() for implicit kernel faults from usermode
x86/fault: Split the OOPS code out from no_context()
x86/fault: Improve kernel-executing-user-memory handling
x86/fault: Correct a few user vs kernel checks wrt WRUSS
x86/fault: Document the locking in the fault_signal_pending() path
x86/fault/32: Move is_f00f_bug() to do_kern_addr_fault()
x86/fault: Fold mm_fault_error() into do_user_addr_fault()
x86/fault: Skip the AMD erratum #91 workaround on unaffected CPUs
x86/fault: Fix AMD erratum #91 errata fixup for user code
x86/Kconfig: Remove HPET_EMULATE_RTC depends on RTC
x86/asm: Fixup TASK_SIZE_MAX comment
x86/ptrace: Clean up PTRACE_GETREGS/PTRACE_PUTREGS regset selection
x86/vm86/32: Remove VM86_SCREEN_BITMAP support
x86: Remove definition of DEBUG
x86/entry: Remove now unused do_IRQ() declaration
x86/mm: Remove duplicate definition of _PAGE_PAT_LARGE
...
Linus Torvalds [Sun, 21 Feb 2021 03:22:15 +0000 (19:22 -0800)]
Merge tag 'x86_paravirt_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 paravirt updates from Borislav Petkov:
"Part one of a major conversion of the paravirt infrastructure to our
kernel patching facilities and getting rid of the custom-grown ones"
* tag 'x86_paravirt_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/pv: Rework arch_local_irq_restore() to not use popf
x86/xen: Drop USERGS_SYSRET64 paravirt call
x86/pv: Switch SWAPGS to ALTERNATIVE
x86/xen: Use specific Xen pv interrupt entry for DF
x86/xen: Use specific Xen pv interrupt entry for MCE
Linus Torvalds [Sun, 21 Feb 2021 03:17:35 +0000 (19:17 -0800)]
Merge tag 'x86_platform_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Borislav Petkov:
- Convert geode drivers to look up the LED controls from a GPIO machine
descriptor table.
- Remove arch/x86/platform/goldfish as it is not used by the android
emulator anymore.
* tag 'x86_platform_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/geode: Convert alix LED to GPIO machine descriptor
x86/platform/geode: Convert geode LED to GPIO machine descriptor
x86/platform/geode: Convert net5501 LED to GPIO machine descriptor
x86/platform: Retire arch/x86/platform/goldfish
x86/platform/intel-mid: Convert comma to semicolon
Linus Torvalds [Sun, 21 Feb 2021 03:13:18 +0000 (19:13 -0800)]
Merge tag 'x86_sgx_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SGX fixes from Borislav Petkov:
"Random small fixes which missed the initial SGX submission. Also, some
procedural clarifications"
* tag 'x86_sgx_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Add Dave Hansen as reviewer for INTEL SGX
x86/sgx: Drop racy follow_pfn() check
MAINTAINERS: Fix the tree location for INTEL SGX patches
x86/sgx: Fix the return type of sgx_init()
Linus Torvalds [Sun, 21 Feb 2021 03:09:26 +0000 (19:09 -0800)]
Merge tag 'efi-next-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ard Biesheuvel via Borislav Petkov:
"A few cleanups left and right, some of which were part of a initrd
measured boot series that needs some more work, and so only the
cleanup patches have been included for this release"
* tag 'efi-next-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/arm64: Update debug prints to reflect other entropy sources
efi: x86: clean up previous struct mm switching
efi: x86: move mixed mode stack PA variable out of 'efi_scratch'
efi/libstub: move TPM related prototypes into efistub.h
efi/libstub: fix prototype of efi_tcg2_protocol::get_event_log()
efi/libstub: whitespace cleanup
efi: ia64: move IA64-only declarations to new asm/efi.h header
Linus Torvalds [Sun, 21 Feb 2021 03:06:34 +0000 (19:06 -0800)]
Merge tag 'ras_updates_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Borislav Petkov:
- move therm_throt.c to the thermal framework, where it belongs.
- identify CPUs which miss to enter the broadcast handler, as an
additional debugging aid.
* tag 'ras_updates_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
thermal: Move therm_throt there from x86/mce
x86/mce: Get rid of mcheck_intel_therm_init()
x86/mce: Make mce_timed_out() identify holdout CPUs
Linus Torvalds [Sun, 21 Feb 2021 03:02:28 +0000 (19:02 -0800)]
Merge tag 'edac_updates_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
- a couple of fixes/improvements to amd64_edac:
* merge debugging and error injection functionality into the main driver
* tone down info/error output
* do not attempt to load it on F15h client hw
- misc fixes to other drivers
* tag 'edac_updates_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/amd64: Issue probing messages only on properly detected hardware
EDAC/xgene: Do not print a failure message to get an IRQ twice
EDAC/ppc4xx: Convert comma to semicolon
EDAC/amd64: Limit error injection functionality to supported hw
EDAC/amd64: Merge error injection sysfs facilities
EDAC/amd64: Merge sysfs debugging attributes setup code
EDAC/amd64: Tone down messages about missing PCI IDs
EDAC/amd64: Do not load on family 0x15, model 0x13
Linus Torvalds [Sun, 21 Feb 2021 02:42:28 +0000 (18:42 -0800)]
Merge tag 'arm-drivers-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"Updates for SoC specific drivers include a few subsystems that have
their own maintainers but send them through the soc tree:
SCMI firmware:
- add support for a completion interrupt
Reset controllers:
- new driver for BCM4908
- new devm_reset_control_get_optional_exclusive_released() function
Memory controllers:
- Renesas RZ/G2 support
- Tegra124 interconnect support
- Allow more drivers to be loadable modules
TEE/optee firmware:
- minor code cleanup
The other half of this is SoC specific drivers that do not belong into
any other subsystem, most of them living in drivers/soc:
- Allwinner/sunxi power management work
- Allwinner H616 support
Linus Torvalds [Sun, 21 Feb 2021 02:34:53 +0000 (18:34 -0800)]
Merge tag 'arm-dt-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC devicetree updates from Arnd Bergmann:
"After the last release contained a surprising amount of new 32-bit
machines, this time two thirds of the code changes are for 64-bit.
The usual updates to existing files include:
- Device tree compiler warning fixes for Berlin, Renesas, SoCFPGA,
nomadik, stm32, Allwinner, TI Keystone
- Support for additional devices on existing machines on Renesas,
SoCFPGA, at91, hisilicon, OMAP, Tegra, TI K3, Allwinner, Broadcom,
ux500, Mediatek, Marvell Armada, Marvell MMP, ZynqMP, AMLogic,
Qualcomm, i.MX, Layerscape, Actions, ASpeed, Toshiba
- Cleanups and minor fixes for Renesas, at91, mstar, ux500, Samsung,
stm32, Tegra, Broadcom, Mediatek, Marvell MMP, AMLogic, Qualcomm,
i.MX, Rockchip, ASpeed, Zynq
Only three new SoCs this time, but a number of boards across:
Renesas:
- Two Beacon EmbeddedWorks boards (RZ/G2H and RZ/G2N based)
Rockchip:
- NanoPi M4B Single-board computer (RK3399)
- Radxa Rock Pi E router SBC (RK3328)
ASpeed:
- Ampere Mt. Jade, a BMC for an x86 server (AST2500)
- IBM Everest, a BMC for a Power10 server (AST2600)
- Supermicro x11spi, a BMC for an ARM server (AST2500)
Linus Torvalds [Sun, 21 Feb 2021 02:23:15 +0000 (18:23 -0800)]
Merge tag 'arm-defconfig-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC defconfig updates from Arnd Bergmann:
"As usual, a number of additional device drivers that were added to the
kernel are now enabled in the respective configuration files.
A few of the files get updated to match the current Kconfig files for
removed or renamed options"
* tag 'arm-defconfig-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (50 commits)
ARM: configs: sama5_defconfig: add QSPI driver
ARM: configs: at91_dt_defconfig: add ov7740 module
ARM: configs: at91_dt_defconfig: add useful helper options
ARM: configs: at91: DT/ATAG defconfig modifications
ARM: configs: sama5_defconfig: update and remove unneeded options
ARM: configs: at91: enable drivers for sam9x60
arm64: defconfig: Enable RT5659
arm64: configs: Support DEVAPC on MediaTek platforms
arm64: configs: Support pwrap on Mediatek MT6779 platform
arm64: defconfig: Enable PF8x00 as builtin
ARM: multi_v7_defconfig: add STM32 CEC support
arm64: defconfig: Enable vibra-pwm
ARM: omap2plus_defconfig: Update for dropped options
ARM: omap2plus_defconfig: Update for moved options
ARM: multi_v7_defconfig: Enable nvmem's rmem driver
arm64: defconfig: Enable nvmem's rmem driver
ARM: multi_v7_defconfig: Enable support for the ADC thermal sensor
ARM: qcom_defconfig: Enable Command DB driver
ARM: qcom_defconfig: Enable RPMh power domain driver
ARM: qcom_defconfig: Enable ARM PSCI support
...
Linus Torvalds [Sun, 21 Feb 2021 02:20:06 +0000 (18:20 -0800)]
Merge tag 'arm-soc-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC updates from Arnd Bergmann:
"This is mostly 32-bit code for SoC platforms, and looks smaller than
any such branch I remember from previous kernels, as most of this is
now handled in other subsystems for modern platforms:
- Minor bugfixes and Kconfig updates for Tegra, Broadcom, i.MX,
Renesas, and Samsung
- Updates to the MAINTAINERS listing for Actions, OMAP, and Samsung
- Samsung SoC driver updates to make them loadable modules"
* tag 'arm-soc-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
MAINTAINERS: arm: samsung: include S3C headers in platform entry
MAINTAINERS: Add linux-actions ML for Actions Semi Arch
ARM: s3c: irq-s3c24xx: staticize local functions
ARM: s3c: irq-s3c24xx: include headers for missing declarations
ARM: s3c: fix fiq for clang IAS
ARM: imx: Remove unused IMX_GPIO_NR() macro
soc: renesas: rcar-sysc: Mark device node OF_POPULATED after init
ARM: OMAP2+: fix spellint typo
MAINTAINERS: Update address for OMAP GPMC driver
soc: renesas: rcar-sysc: Use readl_poll_timeout_atomic()
ARM: bcm: Select BRCMSTB_L2_IRQ for bcm2835
ARM: brcmstb: Add debug UART entry for 72116
ARM: tegra: Don't enable unused PLLs on resume from suspend
soc: samsung: pm_domains: Convert to regular platform driver
soc: samsung: exynos-chipid: correct helpers __init annotation
ARM: mach-imx: imx6ul: Print SOC revision on boot
ARM: imx: mach-imx6ul: remove 14x14 EVK specific PHY fixup
soc: samsung: exynos-chipid: convert to driver and merge exynos-asv
soc: samsung: exynos-asv: handle reading revision register error
soc: samsung: exynos-asv: don't defer early on not-supported SoCs
Linus Torvalds [Sun, 21 Feb 2021 02:16:30 +0000 (18:16 -0800)]
Merge tag 'arm-platform-removal-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC platform removals from Arnd Bergmann:
"There are a lot of platforms that have not seen any interesting code
changes in the past five years or more.
I made a list and asked around which ones are no longer in use, and
received confirmation about six ARM platforms and the TI C6x
architecture that have all reached the end of their life upstream,
with no known users remaining:
- efm32 - added in 2011, first Cortex-M, no notable changes after 2013
- picoxcell - added in 2011, abandoned after 2012 acquisition
- prima2 - added in 20111, no notable changes since 2015
- tango - added in 2015, sporadic changes until 2017, but abandoned
- u300 - added in 2009, no notable changes since 2013
- zx - added in 2015 for both 32, 2017 for 64 bit, no notable changes
- arch/c6x - added in 2011, but work stalled soon after that
A number of other platforms on the original list turned out to still
have users. In some cases there are out-of-tree patches and users that
plan to contribute them in the future, in other cases the code is
complete and works reliably"
Linus Torvalds [Sun, 21 Feb 2021 02:09:40 +0000 (18:09 -0800)]
Merge tag 'arm-fixes-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"There are only two left-over remaining non-urgent ARM SoC bug fixes:
- A build fix for the Atmel SAM9 platform to allow building with the
clang integrated assembler
- A DT fix for ethernet on Intel SoCFPGA, this has been broken since
it was added in v5.4"
* tag 'arm-fixes-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: at91: use proper asm syntax in pm_suspend
arm64: dts: agilex: fix phy interface bit shift for gmac1 and gmac2
Al Viro [Mon, 15 Feb 2021 17:03:23 +0000 (12:03 -0500)]
fix handling of nd->depth on LOOKUP_CACHED failures in try_to_unlazy*
After switching to non-RCU mode, we want nd->depth to match the number
of entries in nd->stack[] that need eventual path_put().
legitimize_links() takes care of that on failures; unfortunately,
failure exits added for LOOKUP_CACHED do not.
We could add the logics for that into those failure exits, both in
try_to_unlazy() and in try_to_unlazy_next(), but since both checks
are immediately followed by legitimize_links() and there's no calls
of legitimize_links() other than those two... It's easier to
move the check (and required handling of nd->depth on failure) into
legitimize_links() itself.
[caught by Jens: ... and since we are zeroing ->depth here, we need
to do drop_links() first]
Fixes: 6c6ec2b0a3e0 "fs: add support for LOOKUP_CACHED" Tested-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jiri Bohac [Thu, 18 Feb 2021 11:15:47 +0000 (12:15 +0100)]
pstore: Fix typo in compression option name
Both pstore_compress() and decompress_record() use a mistyped config
option name ("PSTORE_COMPRESSION" instead of "PSTORE_COMPRESS"). As
a result compression and decompression of pstore records was always
disabled.
Fixes: 93efb0c65683 ("octeontx2-pf: Fix out-of-bounds read in otx2_get_fecparam()") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
These defines are used with set_bit() and test_bit() which take a bit
number. In other words, the code is doing:
if (BIT(BIT(1)) & pf->hw.cap_flag) {
This was done consistently so it did not cause a problem at runtime but
it's still worth fixing.
Fixes: facede8209ef ("octeontx2-pf: cn10k: Add mbox support for CN10K") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This series fixes a race condition that may result in the output clock
not aligned to internal 1 PPS clock.
Part of device initialization is to align the rising edge of output
clocks to the internal rising edge of the 1 PPS clock. If the system
APLL and DPLL are not locked when this alignment occurs, the alignment
fails and a fixed offset between the internal 1 PPS clock and the
output clock occurs.
If a clock is dynamically enabled after power-up, the output clock
also needs to be aligned to the internal 1 PPS clock.
v3:
Suggested by: Jakub Kicinski <kuba@kernel.org>
- Remove unnecessary 'err' variable
- Increase msleep()/loop accuracy by using jiffies in while()
- No empty lines between variables
- No empty lines between call and the if
- parenthesis around a == b are unnecessary
- Inconsistent \n usage in dev_()
- Remove unnecessary empty line
- Leave string format in place so static code checkers can
validate arguments
v2:
Suggested by: Richard Cochran <richardcochran@gmail.com>
- Added const to "char * fmt"
- Break unrelated header change into separate patch
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Vincent Cheng [Wed, 17 Feb 2021 05:42:15 +0000 (00:42 -0500)]
ptp: ptp_clockmatrix: Clean-up dev_*() messages.
Code clean-up.
* Remove unnecessary \n termination from dev_*() messages.
* Remove 'char *fmt' to define strings to stay within 80 column
limit. Not needed since coding guidelines increased to
100 columns limit.
Keeping format in place allows static code checkers to
validate the arguments.
* Tighten up vertical spacing.
Signed-off-by: Vincent Cheng <vincent.cheng.xh@renesas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Vincent Cheng [Wed, 17 Feb 2021 05:42:13 +0000 (00:42 -0500)]
ptp: ptp_clockmatrix: Add alignment of 1 PPS to idtcm_perout_enable.
When enabling output using PTP_CLK_REQ_PEROUT, need to align the output
clock to the internal 1 PPS clock.
Signed-off-by: Vincent Cheng <vincent.cheng.xh@renesas.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Part of the device initialization aligns the rising edge of the output
clock to the internal 1 PPS clock. If the system APLL and DPLL is not
locked, then the alignment will fail and there will be a fixed offset
between the internal 1 PPS clock and the output clock.
After loading the device firmware, poll the system APLL and DPLL for
locked state prior to initialization, timing out after 2 seconds.
Signed-off-by: Vincent Cheng <vincent.cheng.xh@renesas.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
====================
dwmac-sun8i cleanup and shutdown hook
These patches clean up some things I noticed while fixing suspend/resume
behavior. The first four are minor code improvements. The last one adds
a shutdown hook to minimize power consumption on boards without a PMIC.
Changes v1 to v2:
- Note the assumption of exclusive reset controller access in patch 3
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Samuel Holland [Wed, 17 Feb 2021 04:20:06 +0000 (22:20 -0600)]
net: stmmac: dwmac-sun8i: Add a shutdown callback
The Ethernet MAC and PHY are usually major consumers of power on boards
which may not be able to fully power off (those with no PMIC). Powering
down the MAC and internal PHY saves power while these boards are "off".
Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: David S. Miller <davem@davemloft.net>
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for net-next:
1) Add two helper functions to release one table and hooks from
the netns and netlink event path.
2) Add table ownership infrastructure, this new infrastructure allows
users to bind a table (and its content) to a process through the
netlink socket.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean [Wed, 17 Feb 2021 20:33:48 +0000 (22:33 +0200)]
net: mscc: ocelot: select PACKING in the Kconfig
Ocelot now uses include/linux/dsa/ocelot.h which makes use of
CONFIG_PACKING to pack/unpack bits into the Injection/Extraction Frame
Headers. So it needs to explicitly select it, otherwise there might be
build errors due to the missing dependency.
Fixes: 40d3f295b5fe ("net: mscc: ocelot: use common tag parsing code with DSA") Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
entry/kvm: Explicitly flush pending rcuog wakeup before last rescheduling point
Following the idle loop model, cleanly check for pending rcuog wakeup
before the last rescheduling point upon resuming to guest mode. This
way we can avoid to do it from rcu_user_enter() with the last resort
self-IPI hack that enforces rescheduling.
entry: Explicitly flush pending rcuog wakeup before last rescheduling point
Following the idle loop model, cleanly check for pending rcuog wakeup
before the last rescheduling point on resuming to user mode. This
way we can avoid to do it from rcu_user_enter() with the last resort
self-IPI hack that enforces rescheduling.
rcu/nocb: Trigger self-IPI on late deferred wake up before user resume
Entering RCU idle mode may cause a deferred wake up of an RCU NOCB_GP
kthread (rcuog) to be serviced.
Unfortunately the call to rcu_user_enter() is already past the last
rescheduling opportunity before we resume to userspace or to guest mode.
We may escape there with the woken task ignored.
The ultimate resort to fix every callsites is to trigger a self-IPI
(nohz_full depends on arch to implement arch_irq_work_raise()) that will
trigger a reschedule on IRQ tail or guest exit.
Eventually every site that want a saner treatment will need to carefully
place a call to rcu_nocb_flush_deferred_wakeup() before the last explicit
need_resched() check upon resume.
Fixes: 96d3fd0d315a (rcu: Break call_rcu() deadlock involving scheduler and perf) Reported-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20210131230548.32970-4-frederic@kernel.org
rcu/nocb: Perform deferred wake up before last idle's need_resched() check
Entering RCU idle mode may cause a deferred wake up of an RCU NOCB_GP
kthread (rcuog) to be serviced.
Usually a local wake up happening while running the idle task is handled
in one of the need_resched() checks carefully placed within the idle
loop that can break to the scheduler.
Unfortunately the call to rcu_idle_enter() is already beyond the last
generic need_resched() check and we may halt the CPU with a resched
request unhandled, leaving the task hanging.
Fix this with splitting the rcuog wakeup handling from rcu_idle_enter()
and place it before the last generic need_resched() check in the idle
loop. It is then assumed that no call to call_rcu() will be performed
after that in the idle loop until the CPU is put in low power mode.
Fixes: 96d3fd0d315a (rcu: Break call_rcu() deadlock involving scheduler and perf) Reported-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20210131230548.32970-3-frederic@kernel.org
rcu: Pull deferred rcuog wake up to rcu_eqs_enter() callers
Deferred wakeup of rcuog kthreads upon RCU idle mode entry is going to
be handled differently whether initiated by idle, user or guest. Prepare
with pulling that control up to rcu_eqs_enter() callers.
Juri Lelli [Mon, 8 Feb 2021 07:35:54 +0000 (08:35 +0100)]
sched/features: Distinguish between NORMAL and DEADLINE hrtick
The HRTICK feature has traditionally been servicing configurations that
need precise preemptions point for NORMAL tasks. More recently, the
feature has been extended to also service DEADLINE tasks with stringent
runtime enforcement needs (e.g., runtime < 1ms with HZ=1000).
Enabling HRTICK sched feature currently enables the additional timer and
task tick for both classes, which might introduced undesired overhead
for no additional benefit if one needed it only for one of the cases.
Separate HRTICK sched feature in two (and leave the traditional case
name unmodified) so that it can be selectively enabled when needed.
Signed-off-by: Juri Lelli <juri.lelli@redhat.com> Signed-off-by: Luis Claudio R. Goncalves <lgoncalv@redhat.com> Signed-off-by: Daniel Bristot de Oliveira <bristot@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20210208073554.14629-3-juri.lelli@redhat.com
Juri Lelli [Mon, 8 Feb 2021 07:35:53 +0000 (08:35 +0100)]
sched/features: Fix hrtick reprogramming
Hung tasks and RCU stall cases were reported on systems which were not
100% busy. Investigation of such unexpected cases (no sign of potential
starvation caused by tasks hogging the system) pointed out that the
periodic sched tick timer wasn't serviced anymore after a certain point
and that caused all machinery that depends on it (timers, RCU, etc.) to
stop working as well. This issues was however only reproducible if
HRTICK was enabled.
Looking at core dumps it was found that the rbtree of the hrtimer base
used also for the hrtick was corrupted (i.e. next as seen from the base
root and actual leftmost obtained by traversing the tree are different).
Same base is also used for periodic tick hrtimer, which might get "lost"
if the rbtree gets corrupted.
Much alike what described in commit 1f71addd34f4c ("tick/sched: Do not
mess with an enqueued hrtimer") there is a race window between
hrtimer_set_expires() in hrtick_start and hrtimer_start_expires() in
__hrtick_restart() in which the former might be operating on an already
queued hrtick hrtimer, which might lead to corruption of the base.
Use hrtick_start() (which removes the timer before enqueuing it back) to
ensure hrtick hrtimer reprogramming is entirely guarded by the base
lock, so that no race conditions can occur.
Signed-off-by: Juri Lelli <juri.lelli@redhat.com> Signed-off-by: Luis Claudio R. Goncalves <lgoncalv@redhat.com> Signed-off-by: Daniel Bristot de Oliveira <bristot@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20210208073554.14629-2-juri.lelli@redhat.com
Dietmar Eggemann [Tue, 19 Jan 2021 08:35:42 +0000 (09:35 +0100)]
sched/deadline: Reduce rq lock contention in dl_add_task_root_domain()
dl_add_task_root_domain() is called during sched domain rebuild:
rebuild_sched_domains_locked()
partition_and_rebuild_sched_domains()
rebuild_root_domains()
for all top_cpuset descendants:
update_tasks_root_domain()
for all tasks of cpuset:
dl_add_task_root_domain()
Change it so that only the task pi lock is taken to check if the task
has a SCHED_DEADLINE (DL) policy. In case that p is a DL task take the
rq lock as well to be able to safely de-reference root domain's DL
bandwidth structure.
Most of the tasks will have another policy (namely SCHED_NORMAL) and
can now bail without taking the rq lock.
One thing to note here: Even in case that there aren't any DL user
tasks, a slow frequency switching system with cpufreq gov schedutil has
a DL task (sugov) per frequency domain running which participates in DL
bandwidth management.
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Quentin Perret <qperret@google.com> Reviewed-by: Valentin Schneider <valentin.schneider@arm.com> Reviewed-by: Daniel Bristot de Oliveira <bristot@redhat.com> Acked-by: Juri Lelli <juri.lelli@redhat.com> Link: https://lkml.kernel.org/r/20210119083542.19856-1-dietmar.eggemann@arm.com
smp: Process pending softirqs in flush_smp_call_function_from_idle()
send_call_function_single_ipi() may wake an idle CPU without sending an
IPI. The woken up CPU will process the SMP-functions in
flush_smp_call_function_from_idle(). Any raised softirq from within the
SMP-function call will not be processed.
Should the CPU have no tasks assigned, then it will go back to idle with
pending softirqs and the NOHZ will rightfully complain.
Process pending softirqs on return from flush_smp_call_function_queue().
Fixes: b2a02fc43a1f4 ("smp: Optimize send_call_function_single_ipi()") Reported-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20210123201027.3262800-2-bigeasy@linutronix.de
Peter Zijlstra [Mon, 25 Jan 2021 15:26:50 +0000 (16:26 +0100)]
sched: Harden PREEMPT_DYNAMIC
Use the new EXPORT_STATIC_CALL_TRAMP() / static_call_mod() to unexport
the static_call_key for the PREEMPT_DYNAMIC calls such that modules
can no longer update these calls.
Having modules change/hi-jack the preemption calls would be horrible.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Josh Poimboeuf [Wed, 27 Jan 2021 23:18:37 +0000 (17:18 -0600)]
static_call: Allow module use without exposing static_call_key
When exporting static_call_key; with EXPORT_STATIC_CALL*(), the module
can use static_call_update() to change the function called. This is
not desirable in general.
Not exporting static_call_key however also disallows usage of
static_call(), since objtool needs the key to construct the
static_call_site.
Solve this by allowing objtool to create the static_call_site using
the trampoline address when it builds a module and cannot find the
static_call_key symbol. The module loader will then try and map the
trampole back to a key before it constructs the normal sites list.
Doing this requires a trampoline -> key associsation, so add another
magic section that keeps those.
Originally-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20210127231837.ifddpn7rhwdaepiu@treble
preempt/dynamic: Provide preempt_schedule[_notrace]() static calls
Provide static calls to control preempt_schedule[_notrace]()
(called in CONFIG_PREEMPT) so that we can override their behaviour when
preempt= is overriden.
Since the default behaviour is full preemption, both their calls are
initialized to the arch provided wrapper, if any.
[fweisbec: only define static calls when PREEMPT_DYNAMIC, make it less
dependent on x86 with __preempt_schedule_func] Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20210118141223.123667-7-frederic@kernel.org
preempt/dynamic: Provide cond_resched() and might_resched() static calls
Provide static calls to control cond_resched() (called in !CONFIG_PREEMPT)
and might_resched() (called in CONFIG_PREEMPT_VOLUNTARY) to that we
can override their behaviour when preempt= is overriden.
Since the default behaviour is full preemption, both their calls are
ignored when preempt= isn't passed.
[fweisbec: branch might_resched() directly to __cond_resched(), only
define static calls when PREEMPT_DYNAMIC]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20210118141223.123667-6-frederic@kernel.org
Michal Hocko [Mon, 18 Jan 2021 14:12:19 +0000 (15:12 +0100)]
preempt: Introduce CONFIG_PREEMPT_DYNAMIC
Preemption mode selection is currently hardcoded on Kconfig choices.
Introduce a dedicated option to tune preemption flavour at boot time,
This will be only available on architectures efficiently supporting
static calls in order not to tempt with the feature against additional
overhead that might be prohibitive or undesirable.
CONFIG_PREEMPT_DYNAMIC is automatically selected by CONFIG_PREEMPT if
the architecture provides the necessary support (CONFIG_STATIC_CALL_INLINE,
CONFIG_GENERIC_ENTRY, and provide with __preempt_schedule_function() /
__preempt_schedule_notrace_function()).
Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
[peterz: relax requirement to HAVE_STATIC_CALL] Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20210118141223.123667-5-frederic@kernel.org
DECLARE_STATIC_CALL() must pass the original function targeted for a
given static call. But DEFINE_STATIC_CALL() may want to initialize it as
off. In this case we can't pass NULL (for functions without return value)
or __static_call_return0 (for functions returning a value) directly
to DEFINE_STATIC_CALL() as that may trigger a static call redeclaration
with a different function prototype. Type casts neither can work around
that as they don't get along with typeof().
The proper way to do that for functions that don't return a value is
to use DEFINE_STATIC_CALL_NULL(). But functions returning a actual value
don't have an equivalent yet.
Provide DEFINE_STATIC_CALL_RET0() to solve this situation.
Peter Zijlstra [Mon, 18 Jan 2021 14:12:16 +0000 (15:12 +0100)]
static_call/x86: Add __static_call_return0()
Provide a stub function that return 0 and wire up the static call site
patching to replace the CALL with a single 5 byte instruction that
clears %RAX, the return value register.
The function can be cast to any function pointer type that has a
single %RAX return (including pointers). Also provide a version that
returns an int for convenience. We are clearing the entire %RAX register
in any case, whether the return value is 32 or 64 bits, since %RAX is
always a scratch register anyway.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20210118141223.123667-2-frederic@kernel.org
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