The mem_cgroup_reclaim_cookie is only used in memcg softlimit reclaim now,
and the priority of the reclaim is always 0. We don't need to define the
iter in struct mem_cgroup_per_node as an array any more. That could make
the code more clear and save some space.
Link: http://lkml.kernel.org/r/1569897728-1686-1-git-send-email-laoar.shao@gmail.com
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This helper prints warning if direct I/O write failed to invalidate cache,
and set EIO at inode to warn usersapce about possible data corruption.
See also commit 5a9d929d6e ("iomap: report collisions between directio
and buffered writes to userspace").
Direct I/O is supported by non-disk filesystems, for example NFS. Thus
generic code needs this even in kernel without CONFIG_BLOCK.
Link: http://lkml.kernel.org/r/157270038074.4812.7980855544557488880.stgit@buzz
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The size of kmalloc can be obtained from kmalloc_info[], so remove
kmalloc_size() that will not be used anymore.
Link: http://lkml.kernel.org/r/1569241648-26908-3-git-send-email-lpf.vector@gmail.com
Signed-off-by: Pengfei Li <lpf.vector@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'audit-pr-20191126' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore:
"Audit is back for v5.5, albeit with only two patches:
- Allow for the auditing of suspicious O_CREAT usage via the new
AUDIT_ANOM_CREAT record.
- Remove a redundant if-conditional check found during code analysis.
It's a minor change, but when the pull request is only two patches
long, you need filler in the pull request email"
[ Heh on the pull request filler. I wish more people tried to write
better pull request messages, even if maybe it's not worth it for the
trivial cases ;^) - Linus ]
* tag 'audit-pr-20191126' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: remove redundant condition check in kauditd_thread()
audit: Report suspicious O_CREAT usage
- Hibernation support (Dexuan Cui).
- Latency testing framework (Branden Bonaby).
- Decoupling Hyper-V page size from guest page size (Himadri Pandya).
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Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull Hyper-V updates from Sasha Levin:
- support for new VMBus protocols (Andrea Parri)
- hibernation support (Dexuan Cui)
- latency testing framework (Branden Bonaby)
- decoupling Hyper-V page size from guest page size (Himadri Pandya)
* tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (22 commits)
Drivers: hv: vmbus: Fix crash handler reset of Hyper-V synic
drivers/hv: Replace binary semaphore with mutex
drivers: iommu: hyperv: Make HYPERV_IOMMU only available on x86
HID: hyperv: Add the support of hibernation
hv_balloon: Add the support of hibernation
x86/hyperv: Implement hv_is_hibernation_supported()
Drivers: hv: balloon: Remove dependencies on guest page size
Drivers: hv: vmbus: Remove dependencies on guest page size
x86: hv: Add function to allocate zeroed page for Hyper-V
Drivers: hv: util: Specify ring buffer size using Hyper-V page size
Drivers: hv: Specify receive buffer size using Hyper-V page size
tools: hv: add vmbus testing tool
drivers: hv: vmbus: Introduce latency testing
video: hyperv: hyperv_fb: Support deferred IO for Hyper-V frame buffer driver
video: hyperv: hyperv_fb: Obtain screen resolution from Hyper-V host
hv_netvsc: Add the support of hibernation
hv_sock: Add the support of hibernation
video: hyperv_fb: Add the support of hibernation
scsi: storvsc: Add the support of hibernation
Drivers: hv: vmbus: Add module parameter to cap the VMBus version
...
Highlights:
- Infrastructure for secure boot on some bare metal Power9 machines. The
firmware support is still in development, so the code here won't actually
activate secure boot on any existing systems.
- A change to xmon (our crash handler / pseudo-debugger) to restrict it to
read-only mode when the kernel is lockdown'ed, otherwise it's trivial to drop
into xmon and modify kernel data, such as the lockdown state.
- Support for KASLR on 32-bit BookE machines (Freescale / NXP).
- Fixes for our flush_icache_range() and __kernel_sync_dicache() (VDSO) to work
with memory ranges >4GB.
- Some reworks of the pseries CMM (Cooperative Memory Management) driver to
make it behave more like other balloon drivers and enable some cleanups of
generic mm code.
- A series of fixes to our hardware breakpoint support to properly handle
unaligned watchpoint addresses.
Plus a bunch of other smaller improvements, fixes and cleanups.
Thanks to:
Alastair D'Silva, Andrew Donnellan, Aneesh Kumar K.V, Anthony Steinhauser,
Cédric Le Goater, Chris Packham, Chris Smart, Christophe Leroy, Christopher M.
Riedl, Christoph Hellwig, Claudio Carvalho, Daniel Axtens, David Hildenbrand,
Deb McLemore, Diana Craciun, Eric Richter, Geert Uytterhoeven, Greg
Kroah-Hartman, Greg Kurz, Gustavo L. F. Walbon, Hari Bathini, Harish, Jason
Yan, Krzysztof Kozlowski, Leonardo Bras, Mathieu Malaterre, Mauro S. M.
Rodrigues, Michal Suchanek, Mimi Zohar, Nathan Chancellor, Nathan Lynch, Nayna
Jain, Nick Desaulniers, Oliver O'Halloran, Qian Cai, Rasmus Villemoes, Ravi
Bangoria, Sam Bobroff, Santosh Sivaraj, Scott Wood, Thomas Huth, Tyrel
Datwyler, Vaibhav Jain, Valentin Longchamp, YueHaibing.
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Merge tag 'powerpc-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights:
- Infrastructure for secure boot on some bare metal Power9 machines.
The firmware support is still in development, so the code here
won't actually activate secure boot on any existing systems.
- A change to xmon (our crash handler / pseudo-debugger) to restrict
it to read-only mode when the kernel is lockdown'ed, otherwise it's
trivial to drop into xmon and modify kernel data, such as the
lockdown state.
- Support for KASLR on 32-bit BookE machines (Freescale / NXP).
- Fixes for our flush_icache_range() and __kernel_sync_dicache()
(VDSO) to work with memory ranges >4GB.
- Some reworks of the pseries CMM (Cooperative Memory Management)
driver to make it behave more like other balloon drivers and enable
some cleanups of generic mm code.
- A series of fixes to our hardware breakpoint support to properly
handle unaligned watchpoint addresses.
Plus a bunch of other smaller improvements, fixes and cleanups.
Thanks to: Alastair D'Silva, Andrew Donnellan, Aneesh Kumar K.V,
Anthony Steinhauser, Cédric Le Goater, Chris Packham, Chris Smart,
Christophe Leroy, Christopher M. Riedl, Christoph Hellwig, Claudio
Carvalho, Daniel Axtens, David Hildenbrand, Deb McLemore, Diana
Craciun, Eric Richter, Geert Uytterhoeven, Greg Kroah-Hartman, Greg
Kurz, Gustavo L. F. Walbon, Hari Bathini, Harish, Jason Yan, Krzysztof
Kozlowski, Leonardo Bras, Mathieu Malaterre, Mauro S. M. Rodrigues,
Michal Suchanek, Mimi Zohar, Nathan Chancellor, Nathan Lynch, Nayna
Jain, Nick Desaulniers, Oliver O'Halloran, Qian Cai, Rasmus Villemoes,
Ravi Bangoria, Sam Bobroff, Santosh Sivaraj, Scott Wood, Thomas Huth,
Tyrel Datwyler, Vaibhav Jain, Valentin Longchamp, YueHaibing"
* tag 'powerpc-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (144 commits)
powerpc/fixmap: fix crash with HIGHMEM
x86/efi: remove unused variables
powerpc: Define arch_is_kernel_initmem_freed() for lockdep
powerpc/prom_init: Use -ffreestanding to avoid a reference to bcmp
powerpc: Avoid clang warnings around setjmp and longjmp
powerpc: Don't add -mabi= flags when building with Clang
powerpc: Fix Kconfig indentation
powerpc/fixmap: don't clear fixmap area in paging_init()
selftests/powerpc: spectre_v2 test must be built 64-bit
powerpc/powernv: Disable native PCIe port management
powerpc/kexec: Move kexec files into a dedicated subdir.
powerpc/32: Split kexec low level code out of misc_32.S
powerpc/sysdev: drop simple gpio
powerpc/83xx: map IMMR with a BAT.
powerpc/32s: automatically allocate BAT in setbat()
powerpc/ioremap: warn on early use of ioremap()
powerpc: Add support for GENERIC_EARLY_IOREMAP
powerpc/fixmap: Use __fix_to_virt() instead of fix_to_virt()
powerpc/8xx: use the fixmapped IMMR in cpm_reset()
powerpc/8xx: add __init to cpm1 init functions
...
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Merge tag 'notifications-pipe-prep-20191115' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull pipe rework from David Howells:
"This is my set of preparatory patches for building a general
notification queue on top of pipes. It makes a number of significant
changes:
- It removes the nr_exclusive argument from __wake_up_sync_key() as
this is always 1. This prepares for the next step:
- Adds wake_up_interruptible_sync_poll_locked() so that poll can be
woken up from a function that's holding the poll waitqueue
spinlock.
- Change the pipe buffer ring to be managed in terms of unbounded
head and tail indices rather than bounded index and length. This
means that reading the pipe only needs to modify one index, not
two.
- A selection of helper functions are provided to query the state of
the pipe buffer, plus a couple to apply updates to the pipe
indices.
- The pipe ring is allowed to have kernel-reserved slots. This allows
many notification messages to be spliced in by the kernel without
allowing userspace to pin too many pages if it writes to the same
pipe.
- Advance the head and tail indices inside the pipe waitqueue lock
and use wake_up_interruptible_sync_poll_locked() to poke poll
without having to take the lock twice.
- Rearrange pipe_write() to preallocate the buffer it is going to
write into and then drop the spinlock. This allows kernel
notifications to then be added the ring whilst it is filling the
buffer it allocated. The read side is stalled because the pipe
mutex is still held.
- Don't wake up readers on a pipe if there was already data in it
when we added more.
- Don't wake up writers on a pipe if the ring wasn't full before we
removed a buffer"
* tag 'notifications-pipe-prep-20191115' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
pipe: Remove sync on wake_ups
pipe: Increase the writer-wakeup threshold to reduce context-switch count
pipe: Check for ring full inside of the spinlock in pipe_write()
pipe: Remove redundant wakeup from pipe_write()
pipe: Rearrange sequence in pipe_write() to preallocate slot
pipe: Conditionalise wakeup in pipe_read()
pipe: Advance tail pointer inside of wait spinlock in pipe_read()
pipe: Allow pipes to have kernel-reserved slots
pipe: Use head and tail pointers for the ring, not cursor and length
Add wake_up_interruptible_sync_poll_locked()
Remove the nr_exclusive argument from __wake_up_sync_key()
pipe: Reduce #inclusion of pipe_fs_i.h
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Merge tag 'for_v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull ext2, quota, reiserfs cleanups and fixes from Jan Kara:
- Refactor the quota on/off kernel internal interfaces (mostly for
ubifs quota support as ubifs does not want to have inodes holding
quota information)
- A few other small quota fixes and cleanups
- Various small ext2 fixes and cleanups
- Reiserfs xattr fix and one cleanup
* tag 'for_v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (28 commits)
ext2: code cleanup for descriptor_loc()
fs/quota: handle overflows of sysctl fs.quota.* and report as unsigned long
ext2: fix improper function comment
ext2: code cleanup for ext2_try_to_allocate()
ext2: skip unnecessary operations in ext2_try_to_allocate()
ext2: Simplify initialization in ext2_try_to_allocate()
ext2: code cleanup by calling ext2_group_last_block_no()
ext2: introduce new helper ext2_group_last_block_no()
reiserfs: replace open-coded atomic_dec_and_mutex_lock()
ext2: check err when partial != NULL
quota: Handle quotas without quota inodes in dquot_get_state()
quota: Make dquot_disable() work without quota inodes
quota: Drop dquot_enable()
fs: Use dquot_load_quota_inode() from filesystems
quota: Rename vfs_load_quota_inode() to dquot_load_quota_inode()
quota: Simplify dquot_resume()
quota: Factor out setup of quota inode
quota: Check that quota is not dirty before release
quota: fix livelock in dquot_writeback_dquots
ext2: don't set *count in the case of failure in ext2_try_to_allocate()
...
* Direct I/O via iomap (required the iomap-for-next branch from Darrick
as a prereq).
* Support for using dioread-nolock where the block size < page size.
* Support for encryption for file systems where the block size < page size.
* Rework of journal credits handling so a revoke-heavy workload will
not cause the journal to run out of space.
* Replace bit-spinlocks with spinlocks in jbd2
Also included were some bug fixes and cleanups, mostly to clean up
corner cases from fuzzed file systems and error path handling.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"This merge window saw the the following new featuers added to ext4:
- Direct I/O via iomap (required the iomap-for-next branch from
Darrick as a prereq).
- Support for using dioread-nolock where the block size < page size.
- Support for encryption for file systems where the block size < page
size.
- Rework of journal credits handling so a revoke-heavy workload will
not cause the journal to run out of space.
- Replace bit-spinlocks with spinlocks in jbd2
Also included were some bug fixes and cleanups, mostly to clean up
corner cases from fuzzed file systems and error path handling"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (59 commits)
ext4: work around deleting a file with i_nlink == 0 safely
ext4: add more paranoia checking in ext4_expand_extra_isize handling
jbd2: make jbd2_handle_buffer_credits() handle reserved handles
ext4: fix a bug in ext4_wait_for_tail_page_commit
ext4: bio_alloc with __GFP_DIRECT_RECLAIM never fails
ext4: code cleanup for get_next_id
ext4: fix leak of quota reservations
ext4: remove unused variable warning in parse_options()
ext4: Enable encryption for subpage-sized blocks
fs/buffer.c: support fscrypt in block_read_full_page()
ext4: Add error handling for io_end_vec struct allocation
jbd2: Fine tune estimate of necessary descriptor blocks
jbd2: Provide trace event for handle restarts
ext4: Reserve revoke credits for freed blocks
jbd2: Make credit checking more strict
jbd2: Rename h_buffer_credits to h_total_credits
jbd2: Reserve space for revoke descriptor blocks
jbd2: Drop jbd2_space_needed()
jbd2: Account descriptor blocks into t_outstanding_credits
jbd2: Factor out common parts of stopping and restarting a handle
...
- Make iomap_dio_rw callers explicitly tell us if they want us to wait
- Port the xfs writeback code to iomap to complete the buffered io
library functions
- Refactor the unshare code to share common pieces
- Add support for performing copy on write with buffered writes
- Other minor fixes
- Fix unchecked return in iomap_bmap
- Fix a type casting bug in a ternary statement in iomap_dio_bio_actor
- Improve tracepoints for easier diagnostic ability
- Fix pipe page leakage in directio reads
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Merge tag 'iomap-5.5-merge-11' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull iomap updates from Darrick Wong:
"In this release, we hoisted as much of XFS' writeback code into iomap
as was practicable, refactored the unshare file data function, added
the ability to perform buffered io copy on write, and tweaked various
parts of the directio implementation as needed to port ext4's directio
code (that will be a separate pull).
Summary:
- Make iomap_dio_rw callers explicitly tell us if they want us to
wait
- Port the xfs writeback code to iomap to complete the buffered io
library functions
- Refactor the unshare code to share common pieces
- Add support for performing copy on write with buffered writes
- Other minor fixes
- Fix unchecked return in iomap_bmap
- Fix a type casting bug in a ternary statement in
iomap_dio_bio_actor
- Improve tracepoints for easier diagnostic ability
- Fix pipe page leakage in directio reads"
* tag 'iomap-5.5-merge-11' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (31 commits)
iomap: Fix pipe page leakage during splicing
iomap: trace iomap_appply results
iomap: fix return value of iomap_dio_bio_actor on 32bit systems
iomap: iomap_bmap should check iomap_apply return value
iomap: Fix overflow in iomap_page_mkwrite
fs/iomap: remove redundant check in iomap_dio_rw()
iomap: use a srcmap for a read-modify-write I/O
iomap: renumber IOMAP_HOLE to 0
iomap: use write_begin to read pages to unshare
iomap: move the zeroing case out of iomap_read_page_sync
iomap: ignore non-shared or non-data blocks in xfs_file_dirty
iomap: always use AOP_FLAG_NOFS in iomap_write_begin
iomap: remove the unused iomap argument to __iomap_write_end
iomap: better document the IOMAP_F_* flags
iomap: enhance writeback error message
iomap: pass a struct page to iomap_finish_page_writeback
iomap: cleanup iomap_ioend_compare
iomap: move struct iomap_page out of iomap.h
iomap: warn on inline maps in iomap_writepage_map
iomap: lift the xfs writeback code to iomap
...
This is another round of bug fixing and cleanup. This time the focus is on
the driver pattern to use mmu notifiers to monitor a VA range. This code
is lifted out of many drivers and hmm_mirror directly into the
mmu_notifier core and written using the best ideas from all the driver
implementations.
This removes many bugs from the drivers and has a very pleasing
diffstat. More drivers can still be converted, but that is for another
cycle.
- A shared branch with RDMA reworking the RDMA ODP implementation
- New mmu_interval_notifier API. This is focused on the use case of
monitoring a VA and simplifies the process for drivers
- A common seq-count locking scheme built into the mmu_interval_notifier
API usable by drivers that call get_user_pages() or hmm_range_fault()
with the VA range
- Conversion of mlx5 ODP, hfi1, radeon, nouveau, AMD GPU, and Xen GntDev
drivers to the new API. This deletes a lot of wonky driver code.
- Two improvements for hmm_range_fault(), from testing done by Ralph
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Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull hmm updates from Jason Gunthorpe:
"This is another round of bug fixing and cleanup. This time the focus
is on the driver pattern to use mmu notifiers to monitor a VA range.
This code is lifted out of many drivers and hmm_mirror directly into
the mmu_notifier core and written using the best ideas from all the
driver implementations.
This removes many bugs from the drivers and has a very pleasing
diffstat. More drivers can still be converted, but that is for another
cycle.
- A shared branch with RDMA reworking the RDMA ODP implementation
- New mmu_interval_notifier API. This is focused on the use case of
monitoring a VA and simplifies the process for drivers
- A common seq-count locking scheme built into the
mmu_interval_notifier API usable by drivers that call
get_user_pages() or hmm_range_fault() with the VA range
- Conversion of mlx5 ODP, hfi1, radeon, nouveau, AMD GPU, and Xen
GntDev drivers to the new API. This deletes a lot of wonky driver
code.
- Two improvements for hmm_range_fault(), from testing done by Ralph"
* tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
mm/hmm: remove hmm_range_dma_map and hmm_range_dma_unmap
mm/hmm: make full use of walk_page_range()
xen/gntdev: use mmu_interval_notifier_insert
mm/hmm: remove hmm_mirror and related
drm/amdgpu: Use mmu_interval_notifier instead of hmm_mirror
drm/amdgpu: Use mmu_interval_insert instead of hmm_mirror
drm/amdgpu: Call find_vma under mmap_sem
nouveau: use mmu_interval_notifier instead of hmm_mirror
nouveau: use mmu_notifier directly for invalidate_range_start
drm/radeon: use mmu_interval_notifier_insert
RDMA/hfi1: Use mmu_interval_notifier_insert for user_exp_rcv
RDMA/odp: Use mmu_interval_notifier_insert()
mm/hmm: define the pre-processor related parts of hmm.h even if disabled
mm/hmm: allow hmm_range to be used with a mmu_interval_notifier or hmm_mirror
mm/mmu_notifier: add an interval tree notifier
mm/mmu_notifier: define the header pre-processor parts even if disabled
mm/hmm: allow snapshot of the special zero page
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Merge tag 'drm-vmwgfx-coherent-2019-11-29' of git://anongit.freedesktop.org/drm/drm
Pull drm coherent memory support for vmwgfx from Dave Airlie:
"This is a separate pull for the mm pagewalking + drm/vmwgfx work
Thomas did and you were involved in, I've left it separate in case you
don't feel as comfortable with it as the other stuff.
It has mm acks/r-b in the right places from what I can see"
* tag 'drm-vmwgfx-coherent-2019-11-29' of git://anongit.freedesktop.org/drm/drm:
drm/vmwgfx: Add surface dirty-tracking callbacks
drm/vmwgfx: Implement an infrastructure for read-coherent resources
drm/vmwgfx: Use an RBtree instead of linked list for MOB resources
drm/vmwgfx: Implement an infrastructure for write-coherent resources
mm: Add write-protect and clean utilities for address space ranges
mm: Add a walk_page_mapping() function to the pagewalk code
mm: pagewalk: Take the pagetable lock in walk_pte_range()
mm: Remove BUG_ON mmap_sem not held from xxx_trans_huge_lock()
drm/ttm: Convert vm callbacks to helpers
drm/ttm: Remove explicit typecasts of vm_private_data
Support for adding per-device frequency limits was removed in
commit 2aac8bdf7a ("PM: QoS: Drop frequency QoS types from device PM QoS")
after cpufreq switched to use a new "freq_constraints" construct.
Restore support for per-device freq limits but base this upon
freq_constraints. This is primarily meant to be used by the devfreq
subsystem.
This removes the "static" marking on freq_qos_apply but does not export
it for modules.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This allows dev_pm_qos to embed freq_qos structs, which is done in the
next patch. Separate commit to make it easier to review.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
QOS requests for DEFAULT_VALUE are supposed to be ignored but this is
not the case for FREQ_QOS_MAX. Adding one request for MAX_DEFAULT_VALUE
and one for a real value will cause freq_qos_read_value to unexpectedly
return MAX_DEFAULT_VALUE (-1).
This happens because freq_qos max value is aggregated with PM_QOS_MIN
but FREQ_QOS_MAX_DEFAULT_VALUE is (-1) so it's smaller than other
values.
Fix this by redefining FREQ_QOS_MAX_DEFAULT_VALUE to S32_MAX.
Looking at current users for freq_qos it seems that none of them create
requests for FREQ_QOS_MAX_DEFAULT_VALUE.
Fixes: 77751a466e ("PM: QoS: Introduce frequency QoS")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reported-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
After recent cpuidle updates the "disabled" field in struct
cpuidle_state is only used by two drivers (intel_idle and shmobile
cpuidle) for marking unusable idle states, but that may as well be
achieved with the help of a state flag, so define an "unusable" idle
state flag, CPUIDLE_FLAG_UNUSABLE, make the drivers in question use
it instead of the "disabled" field and make the core set
CPUIDLE_STATE_DISABLED_BY_DRIVER for the idle states with that flag
set.
After the above changes, the "disabled" field in struct cpuidle_state
is not used any more, so drop it.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
TLS 1.3 started using the entry at the end of the SG array
for chaining-in the single byte content type entry. This mostly
works:
[ E E E E E E . . ]
^ ^
start end
E < content type
/
[ E E E E E E C . ]
^ ^
start end
(Where E denotes a populated SG entry; C denotes a chaining entry.)
If the array is full, however, the end will point to the start:
[ E E E E E E E E ]
^
start
end
And we end up overwriting the start:
E < content type
/
[ C E E E E E E E ]
^
start
end
The sg array is supposed to be a circular buffer with start and
end markers pointing anywhere. In case where start > end
(i.e. the circular buffer has "wrapped") there is an extra entry
reserved at the end to chain the two halves together.
[ E E E E E E . . l ]
(Where l is the reserved entry for "looping" back to front.
As suggested by John, let's reserve another entry for chaining
SG entries after the main circular buffer. Note that this entry
has to be pointed to by the end entry so its position is not fixed.
Examples of full messages:
[ E E E E E E E E . l ]
^ ^
start end
<---------------.
[ E E . E E E E E E l ]
^ ^
end start
Now the end will always point to an unused entry, so TLS 1.3
can always use it.
Fixes: 130b392c6c ("net: tls: Add tls 1.3 support")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- improve dma-debug scalability (Eric Dumazet)
- tiny dma-debug cleanup (Dan Carpenter)
- check for vmap memory in dma_map_single (Kees Cook)
- check for dma_addr_t overflows in dma-direct when using
DMA offsets (Nicolas Saenz Julienne)
- switch the x86 sta2x11 SOC to use more generic DMA code
(Nicolas Saenz Julienne)
- fix arm-nommu dma-ranges handling (Vladimir Murzin)
- use __initdata in CMA (Shyam Saini)
- replace the bus dma mask with a limit (Nicolas Saenz Julienne)
- merge the remapping helpers into the main dma-direct flow (me)
- switch xtensa to the generic dma remap handling (me)
- various cleanups around dma_capable (me)
- remove unused dev arguments to various dma-noncoherent helpers (me)
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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux; tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- improve dma-debug scalability (Eric Dumazet)
- tiny dma-debug cleanup (Dan Carpenter)
- check for vmap memory in dma_map_single (Kees Cook)
- check for dma_addr_t overflows in dma-direct when using DMA offsets
(Nicolas Saenz Julienne)
- switch the x86 sta2x11 SOC to use more generic DMA code (Nicolas
Saenz Julienne)
- fix arm-nommu dma-ranges handling (Vladimir Murzin)
- use __initdata in CMA (Shyam Saini)
- replace the bus dma mask with a limit (Nicolas Saenz Julienne)
- merge the remapping helpers into the main dma-direct flow (me)
- switch xtensa to the generic dma remap handling (me)
- various cleanups around dma_capable (me)
- remove unused dev arguments to various dma-noncoherent helpers (me)
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux:
* tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping: (22 commits)
dma-mapping: treat dev->bus_dma_mask as a DMA limit
dma-direct: exclude dma_direct_map_resource from the min_low_pfn check
dma-direct: don't check swiotlb=force in dma_direct_map_resource
dma-debug: clean up put_hash_bucket()
powerpc: remove support for NULL dev in __phys_to_dma / __dma_to_phys
dma-direct: avoid a forward declaration for phys_to_dma
dma-direct: unify the dma_capable definitions
dma-mapping: drop the dev argument to arch_sync_dma_for_*
x86/PCI: sta2x11: use default DMA address translation
dma-direct: check for overflows on 32 bit DMA addresses
dma-debug: increase HASH_SIZE
dma-debug: reorder struct dma_debug_entry fields
xtensa: use the generic uncached segment support
dma-mapping: merge the generic remapping helpers into dma-direct
dma-direct: provide mmap and get_sgtable method overrides
dma-direct: remove the dma_handle argument to __dma_direct_alloc_pages
dma-direct: remove __dma_direct_free_pages
usb: core: Remove redundant vmap checks
kernel: dma-contiguous: mark CMA parameters __initdata/__initconst
dma-debug: add a schedule point in debug_dma_dump_mappings()
...
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Merge tag 'for-5.5/io_uring-post-20191128' of git://git.kernel.dk/linux-block
Pull more io_uring updates from Jens Axboe:
"As mentioned in the first pull request, there was a later batch as
well. This contains fixes to the stuff that already went in, cleanups,
and a few later additions. In particular, this contains:
- Cleanups/fixes/unification of the submission and completion path
(Pavel,me)
- Linked timeouts improvements (Pavel,me)
- Error path fixes (me)
- Fix lookup window where cancellations wouldn't work (me)
- Improve DRAIN support (Pavel)
- Fix backlog flushing -EBUSY on submit (me)
- Add support for connect(2) (me)
- Fix for non-iter based fixed IO (Pavel)
- creds inheritance for async workers (me)
- Disable cmsg/ancillary data for sendmsg/recvmsg (me)
- Shrink io_kiocb to 3 cachelines (me)
- NUMA fix for io-wq (Jann)"
* tag 'for-5.5/io_uring-post-20191128' of git://git.kernel.dk/linux-block: (42 commits)
io_uring: make poll->wait dynamically allocated
io-wq: shrink io_wq_work a bit
io-wq: fix handling of NUMA node IDs
io_uring: use kzalloc instead of kcalloc for single-element allocations
io_uring: cleanup io_import_fixed()
io_uring: inline struct sqe_submit
io_uring: store timeout's sqe->off in proper place
net: disallow ancillary data for __sys_{send,recv}msg_file()
net: separate out the msghdr copy from ___sys_{send,recv}msg()
io_uring: remove superfluous check for sqe->off in io_accept()
io_uring: async workers should inherit the user creds
io-wq: have io_wq_create() take a 'data' argument
io_uring: fix dead-hung for non-iter fixed rw
io_uring: add support for IORING_OP_CONNECT
net: add __sys_connect_file() helper
io_uring: only return -EBUSY for submit on non-flushed backlog
io_uring: only !null ptr to io_issue_sqe()
io_uring: simplify io_req_link_next()
io_uring: pass only !null to io_req_find_next()
io_uring: remove io_free_req_find_next()
...
In the general move to have i2c_new_*_device functions which return
ERR_PTR instead of NULL, this patch converts i2c_new_probed_device().
There are only few users, so this patch converts the I2C core and all
users in one go. The function gets renamed to i2c_new_scanned_device()
so out-of-tree users will get a build failure to understand they need to
adapt their error checking code.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Max Staudt <max@enpas.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
- Consolidate DT "dma-ranges" parsing and convert all host drivers to use
shared parsing (Rob Herring)
* remotes/lorenzo/pci/mmio-dma-ranges:
PCI: Make devm_of_pci_get_host_bridge_resources() static
PCI: rcar: Use inbound resources for setup
PCI: iproc: Use inbound resources for setup
PCI: xgene: Use inbound resources for setup
PCI: v3-semi: Use inbound resources for setup
PCI: ftpci100: Use inbound resources for setup
PCI: of: Add inbound resource parsing to helpers
PCI: versatile: Enable COMPILE_TEST
PCI: versatile: Remove usage of PHYS_OFFSET
PCI: versatile: Use pci_parse_request_of_pci_ranges()
PCI: xilinx-nwl: Use pci_parse_request_of_pci_ranges()
PCI: xilinx: Use pci_parse_request_of_pci_ranges()
PCI: xgene: Use pci_parse_request_of_pci_ranges()
PCI: v3-semi: Use pci_parse_request_of_pci_ranges()
PCI: rockchip: Drop storing driver private outbound resource data
PCI: rockchip: Use pci_parse_request_of_pci_ranges()
PCI: mobiveil: Use pci_parse_request_of_pci_ranges()
PCI: mediatek: Use pci_parse_request_of_pci_ranges()
PCI: iproc: Use pci_parse_request_of_pci_ranges()
PCI: faraday: Use pci_parse_request_of_pci_ranges()
PCI: dwc: Use pci_parse_request_of_pci_ranges()
PCI: altera: Use pci_parse_request_of_pci_ranges()
PCI: aardvark: Use pci_parse_request_of_pci_ranges()
PCI: Export pci_parse_request_of_pci_ranges()
resource: Add a resource_list_first_type helper
# Conflicts:
# drivers/pci/controller/pcie-rcar.c
- Add VMD bus 224-255 restriction decode (Jon Derrick)
- Add VMD 8086:9A0B device ID (Jon Derrick)
- Remove Keith from VMD maintainer list (Keith Busch)
* remotes/lorenzo/pci/vmd:
MAINTAINERS: Remove Keith from VMD maintainer
PCI: vmd: Add device id for VMD device 8086:9A0B
PCI: vmd: Add bus 224-255 restriction decode
- Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn
Helgaas)
- Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn Helgaas)
- Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code
previously didn't recognize that) (Kuppuswamy Sathyanarayanan)
- Allow VFs to use PASID (the PF PASID capability is shared by the VFs,
but the code previously didn't recognize that) (Kuppuswamy
Sathyanarayanan)
- Disconnect PF and VF ATS enablement, since ATS in PFs and associated
VFs can be enabled independently (Kuppuswamy Sathyanarayanan)
- Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan)
- Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas)
- Consolidate ATS declarations in linux/pci-ats.h (Krzysztof Wilczynski)
- Remove unused PRI and PASID stubs (Bjorn Helgaas)
- Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID
interfaces that are only used by built-in IOMMU drivers (Bjorn Helgaas)
- Hide PRI and PASID state restoration functions used only inside the PCI
core (Bjorn Helgaas)
- Fix the UPDCR register address in the Intel ACS quirk (Steffen
Liebergeld)
- Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski)
- Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut)
- Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George Cherian)
- Unify ACS quirk implementations (Bjorn Helgaas)
* pci/virtualization:
PCI: Unify ACS quirk desired vs provided checking
PCI: Make ACS quirk implementations more uniform
PCI: Apply Cavium ACS quirk to ThunderX2 and ThunderX3
PCI/IOV: Serialize sysfs sriov_numvfs reads vs writes
PCI: Add DMA alias quirk for Intel VCA NTB
PCI: Fix Intel ACS quirk UPDCR register address
PCI/ATS: Make pci_restore_pri_state(), pci_restore_pasid_state() private
PCI/ATS: Remove unnecessary EXPORT_SYMBOL_GPL()
PCI/ATS: Remove unused PRI and PASID stubs
PCI/ATS: Consolidate ATS declarations in linux/pci-ats.h
PCI/ATS: Cache PRI PRG Response PASID Required bit
PCI/ATS: Cache PASID Capability offset
PCI/ATS: Cache PRI Capability offset
PCI/ATS: Disable PF/VF ATS service independently
PCI/ATS: Handle sharing of PF PASID Capability with all VFs
PCI/ATS: Handle sharing of PF PRI Capability with all VFs
PCI/ATS: Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI
iommu/vt-d: Select PCI_PRI for INTEL_IOMMU_SVM
- Protect pci_reassign_bridge_resources() against concurrent
addition/removal (Benjamin Herrenschmidt)
- Fix bridge dma_ranges resource list cleanup (Rob Herring)
- Add PCI_STD_NUM_BARS for the number of standard BARs (Denis Efremov)
- Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control the
MMIO and prefetchable MMIO window sizes of hotplug bridges
independently (Nicholas Johnson)
- Fix MMIO/MMIO_PREF window assignment that assigned more space than
desired (Nicholas Johnson)
- Only enforce bus numbers from bridge EA if the bridge has EA devices
downstream (Subbaraya Sundeep)
* pci/resource:
PCI: Do not use bus number zero from EA capability
PCI: Avoid double hpmemsize MMIO window assignment
PCI: Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters
PCI: Add PCI_STD_NUM_BARS for the number of standard BARs
PCI: Fix missing bridge dma_ranges resource list cleanup
PCI: Protect pci_reassign_bridge_resources() against concurrent addition/removal
- Always return devices to D0 when thawing to fix hibernation with
drivers like mlx4 that used legacy power management (previously we only
did it for drivers with new power management ops) (Dexuan Cui)
- Clear PCIe PME Status even for legacy power management (Bjorn Helgaas)
- Fix PCI PM documentation errors (Bjorn Helgaas)
- Use dev_printk() for more power management messages (Bjorn Helgaas)
- Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas)
- Convert xen-platform from legacy to generic power management (Bjorn
Helgaas)
- Removed unused .resume_early() and .suspend_late() legacy power
management hooks (Bjorn Helgaas)
- Rearrange power management code for clarity (Rafael J. Wysocki)
- Decode power states more clearly ("4" or "D4" really refers to
"D3cold") (Bjorn Helgaas)
- Notice when reading PM Control register returns an error (~0) instead
of interpreting it as being in D3hot (Bjorn Helgaas)
- Add missing link delays required by the PCIe spec (Mika Westerberg)
* pci/pm:
PCI/PM: Move pci_dev_wait() definition earlier
PCI/PM: Add missing link delays required by the PCIe spec
PCI/PM: Add pcie_wait_for_link_delay()
PCI/PM: Return error when changing power state from D3cold
PCI/PM: Decode D3cold power state correctly
PCI/PM: Fold __pci_complete_power_transition() into its caller
PCI/PM: Avoid exporting __pci_complete_power_transition()
PCI/PM: Fold __pci_start_power_transition() into its caller
PCI/PM: Use pci_power_up() in pci_set_power_state()
PCI/PM: Move power state update away from pci_power_up()
PCI/PM: Remove unused pci_driver.suspend_late() hook
PCI/PM: Remove unused pci_driver.resume_early() hook
xen-platform: Convert to generic power management
PCI/PM: Simplify pci_set_power_state()
PCI/PM: Expand PM reset messages to mention D3hot (not just D3)
PCI/PM: Apply D2 delay as milliseconds, not microseconds
PCI/PM: Use pci_WARN() to include device information
PCI/PM: Use PCI dev_printk() wrappers for consistency
PCI/PM: Wrap long lines in documentation
PCI/PM: Note that PME can be generated from D0
PCI/PM: Make power management op coding style consistent
PCI/PM: Run resume fixups before disabling wakeup events
PCI/PM: Clear PCIe PME Status even for legacy power management
PCI/PM: Correct pci_pm_thaw_noirq() documentation
PCI/PM: Always return devices to D0 when thawing
- Remove unused pci_irq_get_node() Greg Kroah-Hartman)
- Move power state check out of pci_msi_supported() (Bjorn Helgaas)
- Fix incorrect MSI-X masking on resume and revert related nvme quirk for
Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan)
- Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig
(Palmer Dabbelt, Michal Simek)
* pci/msi:
PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist
asm-generic: Make msi.h a mandatory include/asm header
Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T"
PCI/MSI: Fix incorrect MSI-X masking on resume
PCI/MSI: Move power state check out of pci_msi_supported()
PCI/MSI: Remove unused pci_irq_get_node()
- Restore AER capability after resume (Mayurkumar Patel)
- Add PoisonTLPBlocked AER counter (Rajat Jain)
- Use for_each_set_bit() to simplify AER code (Andy Shevchenko)
- Fix AER kernel-doc (Andy Shevchenko)
- Add "pcie_ports=dpc-native" parameter to allow native use of DPC even
if platform didn't grant control over AER (Olof Johansson)
* pci/aer:
PCI/DPC: Add "pcie_ports=dpc-native" to allow DPC without AER control
PCI/AER: Fix kernel-doc warnings
PCI/AER: Use for_each_set_bit() to simplify code
PCI/AER: Add PoisonTLPBlocked to Uncorrectable error counters
PCI/AER: Save AER Capability for suspend/resume
Graphics APIs like OpenGL 4.4 and Vulkan require the graphics driver
to provide coherent graphics memory, meaning that the GPU sees any
content written to the coherent memory on the next GPU operation that
touches that memory, and the CPU sees any content written by the GPU
to that memory immediately after any fence object trailing the GPU
operation is signaled.
Paravirtual drivers that otherwise require explicit synchronization
needs to do this by hooking up dirty tracking to pagefault handlers
and buffer object validation.
Provide mm helpers needed for this and that also allow for huge pmd-
and pud entries (patch 1-3), and the associated vmwgfx code (patch 4-7).
The code has been tested and exercised by a tailored version of mesa
where we disable all explicit synchronization and assume graphics memory
is coherent. The performance loss varies of course; a typical number is
around 5%.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <thomas_os@shipmail.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191113131639.4653-1-thomas_os@shipmail.org
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Merge tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"Lots of stuff in here, though it hasn't been too insane this merge
apart from dealing with the security fun.
uapi:
- export different colorspace properties on DP vs HDMI
- new fourcc for ARM 16x16 block format
- syncobj: allow querying last submitted timeline value
- DRM_FORMAT_BIG_ENDIAN defined as unsigned
core:
- allow using gem vma manager in ttm
- connector/encoder/bridge doc fixes
- allow more than 3 encoders for a connector
- displayport mst suspend/resume reprobing support
- vram lazy unmapping, uniform vram mm and gem vram
- edid cleanups + AVI informframe bar info
- displayport helpers - dpcd parser added
dp_cec:
- Allow a connector to be associated with a cec device
ttm:
- pipelining with no_gpu_wait fix
- always keep BOs on the LRU
sched:
- allow free_job routine to sleep
i915:
- Block userptr from mappable GTT
- i915 perf uapi versioning
- OA stream dynamic reconfiguration
- make context persistence optional
- introduce DRM_I915_UNSTABLE Kconfig
- add fake lmem testing under unstable
- BT.2020 support for DP MSA
- struct mutex elimination
- Tigerlake display/PLL/power management improvements
- Jasper Lake PCH support
- refactor PMU for multiple GPUs
- Icelake firmware update
- Split out vga + switcheroo code
amdgpu:
- implement dma-buf import/export without helpers
- vega20 RAS enablement
- DC i2c over aux fixes
- renoir GPU reset
- DC HDCP support
- BACO support for CI/VI asics
- MSI-X support
- Arcturus EEPROM support
- Arcturus VCN encode support
- VCN dynamic powergating on RV/RV2
amdkfd:
- add navi12/14/renoir support to kfd
radeon:
- SI dpm fix ported from amdgpu
- fix bad DMA on ppc platforms
gma500:
- memory leak fixes
qxl:
- convert to new gem mmap
exynos:
- build warning fix
komeda:
- add aclk sysfs attribute
v3d:
- userspace cleanup uapi change
i810:
- fix for underflow in dispatch ioctls
ast:
- refactor show_cursor
mgag200:
- refactor show_cursor
arcgpu:
- encoder finding improvements
mediatek:
- mipi_tx, dsi and partial crtc support for MT8183 SoC
- rotation support
meson:
- add suspend/resume support
omap:
- misc refactors
tegra:
- DisplayPort support for Tegra 210, 186 and 194.
- IOMMU-backed DMA API fixes
panfrost:
- fix lockdep issue
- simplify devfreq integration
rcar-du:
- R8A774B1 SoC support
- fixes for H2 ES2.0
sun4i:
- vcc-dsi regulator support
virtio-gpu:
- vmexit vs spinlock fix
- move to gem shmem helpers
- handle large command buffers with cma"
* tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm: (1855 commits)
drm/amdgpu: invalidate mmhub semaphore workaround in gmc9/gmc10
drm/amdgpu: initialize vm_inv_eng0_sem for gfxhub and mmhub
drm/amd/amdgpu/sriov skip RLCG s/r list for arcturus VF.
drm/amd/amdgpu/sriov temporarily skip ras,dtm,hdcp for arcturus VF
drm/amdgpu/gfx10: re-init clear state buffer after gpu reset
merge fix for "ftrace: Rework event_create_dir()"
drm/amdgpu: Update Arcturus golden registers
drm/amdgpu/gfx10: fix out-of-bound mqd_backup array access
drm/amdgpu/gfx10: explicitly wait for cp idle after halt/unhalt
Revert "drm/amd/display: enable S/G for RAVEN chip"
drm/amdgpu: disable gfxoff on original raven
drm/amdgpu: remove experimental flag for Navi14
drm/amdgpu: disable gfxoff when using register read interface
drm/amdgpu/powerplay: properly set PP_GFXOFF_MASK (v2)
drm/amdgpu: fix bad DMA from INTERRUPT_CNTL2
drm/radeon: fix bad DMA from INTERRUPT_CNTL2
drm/amd/display: Fix debugfs on MST connectors
drm/amdgpu/nv: add asic func for fetching vbios from rom directly
drm/amdgpu: put flush_delayed_work at first
drm/amdgpu/vcn2.5: fix the enc loop with hw fini
...
Convert the ceph filesystem to the new internal mount API as the old
one will be obsoleted and removed. This allows greater flexibility in
communication of mount parameters between userspace, the VFS and the
filesystem.
See Documentation/filesystems/mount_api.txt for more information.
[ Numerous string handling, leak and regression fixes; rbd conversion
was particularly broken and had to be redone almost from scratch. ]
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
- PERAMAENT flag to ftrace_ops when attaching a callback to a function
As /proc/sys/kernel/ftrace_enabled when set to zero will disable all
attached callbacks in ftrace, this has a detrimental impact on live
kernel tracing, as it disables all that it patched. If a ftrace_ops
is registered to ftrace with the PERMANENT flag set, it will prevent
ftrace_enabled from being disabled, and if ftrace_enabled is already
disabled, it will prevent a ftrace_ops with PREMANENT flag set from
being registered.
- New register_ftrace_direct(). As eBPF would like to register its own
trampolines to be called by the ftrace nop locations directly,
without going through the ftrace trampoline, this function has been
added. This allows for eBPF trampolines to live along side of
ftrace, perf, kprobe and live patching. It also utilizes the ftrace
enabled_functions file that keeps track of functions that have been
modified in the kernel, to allow for security auditing.
- Allow for kernel internal use of ftrace instances. Subsystems in
the kernel can now create and destroy their own tracing instances
which allows them to have their own tracing buffer, and be able
to record events without worrying about other users from writing over
their data.
- New seq_buf_hex_dump() that lets users use the hex_dump() in their
seq_buf usage.
- Notifications now added to tracing_max_latency to allow user space
to know when a new max latency is hit by one of the latency tracers.
- Wider spread use of generic compare operations for use of bsearch and
friends.
- More synthetic event fields may be defined (32 up from 16)
- Use of xarray for architectures with sparse system calls, for the
system call trace events.
This along with small clean ups and fixes.
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Merge tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"New tracing features:
- New PERMANENT flag to ftrace_ops when attaching a callback to a
function.
As /proc/sys/kernel/ftrace_enabled when set to zero will disable
all attached callbacks in ftrace, this has a detrimental impact on
live kernel tracing, as it disables all that it patched. If a
ftrace_ops is registered to ftrace with the PERMANENT flag set, it
will prevent ftrace_enabled from being disabled, and if
ftrace_enabled is already disabled, it will prevent a ftrace_ops
with PREMANENT flag set from being registered.
- New register_ftrace_direct().
As eBPF would like to register its own trampolines to be called by
the ftrace nop locations directly, without going through the ftrace
trampoline, this function has been added. This allows for eBPF
trampolines to live along side of ftrace, perf, kprobe and live
patching. It also utilizes the ftrace enabled_functions file that
keeps track of functions that have been modified in the kernel, to
allow for security auditing.
- Allow for kernel internal use of ftrace instances.
Subsystems in the kernel can now create and destroy their own
tracing instances which allows them to have their own tracing
buffer, and be able to record events without worrying about other
users from writing over their data.
- New seq_buf_hex_dump() that lets users use the hex_dump() in their
seq_buf usage.
- Notifications now added to tracing_max_latency to allow user space
to know when a new max latency is hit by one of the latency
tracers.
- Wider spread use of generic compare operations for use of bsearch
and friends.
- More synthetic event fields may be defined (32 up from 16)
- Use of xarray for architectures with sparse system calls, for the
system call trace events.
This along with small clean ups and fixes"
* tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (51 commits)
tracing: Enable syscall optimization for MIPS
tracing: Use xarray for syscall trace events
tracing: Sample module to demonstrate kernel access to Ftrace instances.
tracing: Adding new functions for kernel access to Ftrace instances
tracing: Fix Kconfig indentation
ring-buffer: Fix typos in function ring_buffer_producer
ftrace: Use BIT() macro
ftrace: Return ENOTSUPP when DYNAMIC_FTRACE_WITH_DIRECT_CALLS is not configured
ftrace: Rename ftrace_graph_stub to ftrace_stub_graph
ftrace: Add a helper function to modify_ftrace_direct() to allow arch optimization
ftrace: Add helper find_direct_entry() to consolidate code
ftrace: Add another check for match in register_ftrace_direct()
ftrace: Fix accounting bug with direct->count in register_ftrace_direct()
ftrace/selftests: Fix spelling mistake "wakeing" -> "waking"
tracing: Increase SYNTH_FIELDS_MAX for synthetic_events
ftrace/samples: Add a sample module that implements modify_ftrace_direct()
ftrace: Add modify_ftrace_direct()
tracing: Add missing "inline" in stub function of latency_fsnotify()
tracing: Remove stray tab in TRACE_EVAL_MAP_FILE's help text
tracing: Use seq_buf_hex_dump() to dump buffers
...
Here is the "big" set of driver core patches for 5.5-rc1
There's a few minor cleanups and fixes in here, but the majority of the
patches in here fall into two buckets:
- debugfs api cleanups and fixes
- driver core device link support for boot dependancy issues
The debugfs api cleanups are working to slowly refactor the debugfs apis
so that it is even harder to use incorrectly. That work has been
happening for the past few kernel releases and will continue over time,
it's a long-term project/goal
The driver core device link support missed 5.4 by just a bit, so it's
been sitting and baking for many months now. It's from Saravana Kannan
to help resolve the problems that DT-based systems have at boot time
with dependancy graphs and kernel modules. Turns out that no one has
actually tried to build a generic arm64 kernel with loads of modules and
have it "just work" for a variety of platforms (like a distro kernel)
The big problem turned out to be a lack of depandancy information
between different areas of DT entries, and the work here resolves that
problem and now allows devices to boot properly, and quicker than a
monolith kernel.
All of these patches have been in linux-next for a long time with no
reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the "big" set of driver core patches for 5.5-rc1
There's a few minor cleanups and fixes in here, but the majority of
the patches in here fall into two buckets:
- debugfs api cleanups and fixes
- driver core device link support for boot dependancy issues
The debugfs api cleanups are working to slowly refactor the debugfs
apis so that it is even harder to use incorrectly. That work has been
happening for the past few kernel releases and will continue over
time, it's a long-term project/goal
The driver core device link support missed 5.4 by just a bit, so it's
been sitting and baking for many months now. It's from Saravana Kannan
to help resolve the problems that DT-based systems have at boot time
with dependancy graphs and kernel modules. Turns out that no one has
actually tried to build a generic arm64 kernel with loads of modules
and have it "just work" for a variety of platforms (like a distro
kernel). The big problem turned out to be a lack of dependency
information between different areas of DT entries, and the work here
resolves that problem and now allows devices to boot properly, and
quicker than a monolith kernel.
All of these patches have been in linux-next for a long time with no
reported issues"
* tag 'driver-core-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (68 commits)
tracing: Remove unnecessary DEBUG_FS dependency
of: property: Add device link support for interrupt-parent, dmas and -gpio(s)
debugfs: Fix !DEBUG_FS debugfs_create_automount
of: property: Add device link support for "iommu-map"
of: property: Fix the semantics of of_is_ancestor_of()
i2c: of: Populate fwnode in of_i2c_get_board_info()
drivers: base: Fix Kconfig indentation
firmware_loader: Fix labels with comma for builtin firmware
driver core: Allow device link operations inside sync_state()
driver core: platform: Declare ret variable only once
cpu-topology: declare parse_acpi_topology in <linux/arch_topology.h>
crypto: hisilicon: no need to check return value of debugfs_create functions
driver core: platform: use the correct callback type for bus_find_device
firmware_class: make firmware caching configurable
driver core: Clarify documentation for fwnode_operations.add_links()
mailbox: tegra: Fix superfluous IRQ error message
net: caif: Fix debugfs on 64-bit platforms
mac80211: Use debugfs_create_xul() helper
media: c8sectpfe: no need to check return value of debugfs_create functions
of: property: Add device link support for iommus, mboxes and io-channels
...
Here is the big staging and iio set of patches for the 5.5-rc1 release.
It's the usual huge collection of cleanup patches all over the
drivers/staging/ area, along with a new staging driver, and a bunch of
new IIO drivers as well.
Full details are in the shortlog, but all of these have been in
linux-next for a long time with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging / iio updates from Greg KH:
"Here is the big staging and iio set of patches for the 5.5-rc1
release.
It's the usual huge collection of cleanup patches all over the
drivers/staging/ area, along with a new staging driver, and a bunch of
new IIO drivers as well.
Full details are in the shortlog, but all of these have been in
linux-next for a long time with no reported issues"
* tag 'staging-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (548 commits)
staging: vchiq: Have vchiq_dump_* functions return an error code
staging: vchiq: Refactor indentation in vchiq_dump_* functions
staging: fwserial: Fix Kconfig indentation (seven spaces)
staging: vchiq_dump: Replace min with min_t
staging: vchiq: Fix block comment format in vchiq_dump()
staging: octeon: indent with tabs instead of spaces
staging: comedi: usbduxfast: usbduxfast_ai_cmdtest rounding error
staging: most: core: remove sysfs attr remove_link
staging: vc04: Fix Kconfig indentation
staging: pi433: Fix Kconfig indentation
staging: nvec: Fix Kconfig indentation
staging: most: Fix Kconfig indentation
staging: fwserial: Fix Kconfig indentation
staging: fbtft: Fix Kconfig indentation
fbtft: Drop OF dependency
fbtft: Make use of device property API
fbtft: Drop useless #ifdef CONFIG_OF and dead code
fbtft: Describe function parameters in kernel-doc
fbtft: Make sure string is NULL terminated
staging: rtl8723bs: remove set but not used variable 'change', 'pos'
...
Here is the big set of char/misc and other driver patches for 5.5-rc1
Loads of different things in here, this feels like the catch-all of
driver subsystems these days. Full details are in the shortlog, but
nothing major overall, just lots of driver updates and additions.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big set of char/misc and other driver patches for 5.5-rc1
Loads of different things in here, this feels like the catch-all of
driver subsystems these days. Full details are in the shortlog, but
nothing major overall, just lots of driver updates and additions.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (198 commits)
char: Fix Kconfig indentation, continued
habanalabs: add more protection of device during reset
habanalabs: flush EQ workers in hard reset
habanalabs: make the reset code more consistent
habanalabs: expose reset counters via existing INFO IOCTL
habanalabs: make code more concise
habanalabs: use defines for F/W files
habanalabs: remove prints on successful device initialization
habanalabs: remove unnecessary checks
habanalabs: invalidate MMU cache only once
habanalabs: skip VA block list update in reset flow
habanalabs: optimize MMU unmap
habanalabs: prevent read/write from/to the device during hard reset
habanalabs: split MMU properties to PCI/DRAM
habanalabs: re-factor MMU masks and documentation
habanalabs: type specific MMU cache invalidation
habanalabs: re-factor memory module code
habanalabs: export uapi defines to user-space
habanalabs: don't print error when queues are full
habanalabs: increase max jobs number to 512
...
Here is the big set of USB patches for 5.5-rc1
Lots of little things in here:
- typec updates and additions
- usb-serial drivers cleanups and fixes
- misc USB drivers cleanups and fixes
- gadget drivers new features and controllers added
- usual xhci additions
- other minor changes
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH:
"Here is the big set of USB patches for 5.5-rc1
Lots of little things in here:
- typec updates and additions
- usb-serial drivers cleanups and fixes
- misc USB drivers cleanups and fixes
- gadget drivers new features and controllers added
- usual xhci additions
- other minor changes
All of these have been in linux-next with no reported issues"
* tag 'usb-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (223 commits)
usb: gadget: udc: gr_udc: create debugfs directory under usb root
usb: gadget: atmel: create debugfs directory under usb root
usb: musb: create debugfs directory under usb root
usb: serial: Fix Kconfig indentation
usb: misc: Fix Kconfig indentation
usb: gadget: Fix Kconfig indentation
usb: host: Fix Kconfig indentation
usb: dwc3: Fix Kconfig indentation
usb: gadget: configfs: Fix missing spin_lock_init()
usb-storage: Disable UAS on JMicron SATA enclosure
USB: documentation: flags on usb-storage versus UAS
USB: uas: heed CAPACITY_HEURISTICS
USB: uas: honor flag to avoid CAPACITY16
usb: host: xhci-tegra: Correct phy enable sequence
usb-serial: cp201x: support Mark-10 digital force gauge
usb: chipidea: imx: pinctrl for HSIC is optional
usb: chipidea: imx: refine the error handling for hsic
usb: chipidea: imx: change hsic power regulator as optional
usb: chipidea: imx: check data->usbmisc_data against NULL before access
usb: chipidea: core: change vbus-regulator as optional
...
Mainly a collection of smaller of driver updates this cycle.
- Various driver updates and bug fixes for siw, bnxt_re, hns, qedr,
iw_cxgb4, vmw_pvrdma, mlx5
- Improvements in SRPT from working with iWarp
- SRIOV VF support for bnxt_re
- Skeleton kernel-doc files for drivers/infiniband
- User visible counters for events related to ODP
- Common code for tracking of mmap lifetimes so that drivers can link HW
object liftime to a VMA
- ODP bug fixes and rework
- RDMA READ support for efa
- Removal of the very old cxgb3 driver
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"Again another fairly quiet cycle with few notable core code changes
and the usual variety of driver bug fixes and small improvements.
- Various driver updates and bug fixes for siw, bnxt_re, hns, qedr,
iw_cxgb4, vmw_pvrdma, mlx5
- Improvements in SRPT from working with iWarp
- SRIOV VF support for bnxt_re
- Skeleton kernel-doc files for drivers/infiniband
- User visible counters for events related to ODP
- Common code for tracking of mmap lifetimes so that drivers can link
HW object liftime to a VMA
- ODP bug fixes and rework
- RDMA READ support for efa
- Removal of the very old cxgb3 driver"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (168 commits)
RDMA/hns: Delete unnecessary callback functions for cq
RDMA/hns: Rename the functions used inside creating cq
RDMA/hns: Redefine the member of hns_roce_cq struct
RDMA/hns: Redefine interfaces used in creating cq
RDMA/efa: Expose RDMA read related attributes
RDMA/efa: Support remote read access in MR registration
RDMA/efa: Store network attributes in device attributes
IB/hfi1: remove redundant assignment to variable ret
RDMA/bnxt_re: Fix missing le16_to_cpu
RDMA/bnxt_re: Fix stat push into dma buffer on gen p5 devices
RDMA/bnxt_re: Fix chip number validation Broadcom's Gen P5 series
RDMA/bnxt_re: Fix Kconfig indentation
IB/mlx5: Implement callbacks for getting VFs GUID attributes
IB/ipoib: Add ndo operation for getting VFs GUID attributes
IB/core: Add interfaces to get VF node and port GUIDs
net/core: Add support for getting VF GUIDs
RDMA/qedr: Fix null-pointer dereference when calling rdma_user_mmap_get_offset
RDMA/cm: Use refcount_t type for refcount variable
IB/mlx5: Support extended number of strides for Striding RQ
IB/mlx4: Update HW GID table while adding vlan GID
...
- Add CMD13 polling for MMC IOCTLS with R1B response.
- Add common DT properties for clk-phase-delays for various speed modes.
- Fix size overflow for mmc gp-partitions.
- Re-work HW reset for SDIO cards, which also includes a re-work for
Marvell's WiFi mwifiex SDIO func driver.
MMC host:
- jz4740: Add support for X1000 and JZ4760.
- jz4740: Add support for 8-bit bus and for low power mode.
- mmci: Add support for HW busy timeout for the stm32_sdmmc variant.
- owl-mmc: Add driver for Actions Semi Owl SoCs SD/MMC controller.
- renesas_sdhi: Add support for r8a774b1.
- sdhci_am654: Add support for Command Queuing Engine for J721E.
- sdhci-milbeaut: Add driver for the Milbeaut SD controller.
- sdhci-of-arasan: Add support for ZynqMP tap-delays.
- sdhci-of-arasan: Add support for clk-phase-delays for SD cards.
- sdhci-of-arasan: Add support for Intel LGM SDXC.
- sdhci-of-aspeed: Allow inversion of the internal card detect signal.
- sdhci-of-esdhc: Fixup workaround for erratum A-008171 for tunings.
- sdhci-of-at91: Improve support for calibration.
- sdhci-pci: Add support for Intel JSL.
- sdhci-pci: Add quirk for AMD SDHC Device 0x7906.
- tmio: Enable support for erase/discard/trim requests.
MMC/OMAP/pandora/wl1251:
The TI wl1251 WiFi driver for SDIO on the OMAP openpandora board has been
broken since v4.7. To fix the problems, changes have been made cross
subsystems, but also to OMAP2 machine code and to openpandora DTS files, as
summarized below. Note that, relevant changes have been tagged for stable.
- mmc/wl1251: Re-introduce lost SDIO quirks and vendor-id for wl1251
- omap/omap_hsmmc: Remove redundant platform config for openpandora
- omap_hsmmc: Initialize non-std SDIO card for wl1251 for pandora
- omap/dts/pandora: Specify wl1251 through a child node of mmc3
- wl1251: Add devicetree support for TI wl1251 SDIO
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Merge tag 'mmc-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"These are the updates for MMC and MEMSTICK for v5.5.
Note that this also contains quite some additional changes reaching
beyond both the MMC and MEMSTICK subsystems. This is primarily because
of fixing an old regression for a WiFi driver based on the SDIO
interface on an OMAP openpandora board
MMC core:
- Add CMD13 polling for MMC IOCTLS with R1B response.
- Add common DT properties for clk-phase-delays for various speed
modes.
- Fix size overflow for mmc gp-partitions.
- Re-work HW reset for SDIO cards, which also includes a re-work for
Marvell's WiFi mwifiex SDIO func driver.
MMC host:
- jz4740: Add support for X1000 and JZ4760.
- jz4740: Add support for 8-bit bus and for low power mode.
- mmci: Add support for HW busy timeout for the stm32_sdmmc variant.
- owl-mmc: Add driver for Actions Semi Owl SoCs SD/MMC controller.
- renesas_sdhi: Add support for r8a774b1.
- sdhci_am654: Add support for Command Queuing Engine for J721E.
- sdhci-milbeaut: Add driver for the Milbeaut SD controller.
- sdhci-of-arasan: Add support for ZynqMP tap-delays.
- sdhci-of-arasan: Add support for clk-phase-delays for SD cards.
- sdhci-of-arasan: Add support for Intel LGM SDXC.
- sdhci-of-aspeed: Allow inversion of the internal card detect
signal.
- sdhci-of-esdhc: Fixup workaround for erratum A-008171 for tunings.
- sdhci-of-at91: Improve support for calibration.
- sdhci-pci: Add support for Intel JSL.
- sdhci-pci: Add quirk for AMD SDHC Device 0x7906.
- tmio: Enable support for erase/discard/trim requests.
MMC/OMAP/pandora/wl1251:
The TI wl1251 WiFi driver for SDIO on the OMAP openpandora board has
been broken since v4.7. To fix the problems, changes have been made
cross subsystems, but also to OMAP2 machine code and to openpandora
DTS files, as summarized below. Relevant changes have been tagged for
stable.
- mmc/wl1251: Re-introduce lost SDIO quirks and vendor-id for wl1251
- omap/omap_hsmmc: Remove redundant platform config for openpandora
- omap_hsmmc: Initialize non-std SDIO card for wl1251 for pandora
- omap/dts/pandora: Specify wl1251 through a child node of mmc3
- wl1251: Add devicetree support for TI wl1251 SDIO"
* tag 'mmc-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (73 commits)
dt-bindings: mmc: Correct the type of the clk phase properties
Revert "mmc: tmio: remove workaround for NON_REMOVABLE"
memstick: Fix Kconfig indentation
mmc: sdhci-of-arasan: Add support for ZynqMP Platform Tap Delays Setup
dt-bindings: mmc: arasan: Document 'xlnx,zynqmp-8.9a' controller
firmware: xilinx: Add SDIO Tap Delay nodes
mmc: sdhci-of-arasan: Add support to set clock phase delays for SD
dt-bindings: mmc: Add optional generic properties for mmc
mmc: sdhci-of-arasan: Add sampling clock for a phy to use
dt-bindings: mmc: arasan: Update Documentation for the input clock
mmc: sdhci-of-arasan: Separate out clk related data to another structure
mmc: sdhci: Fix grammar in warning message
mmc: sdhci-of-aspeed: add inversion signal presence
mmc: sdhci-of-aspeed: enable CONFIG_MMC_SDHCI_IO_ACCESSORS
mmc: sdhci_am654: Add Support for Command Queuing Engine to J721E
mmc: core: Fix size overflow for mmc partitions
mmc: tmio: Add MMC_CAP_ERASE to allow erase/discard/trim requests
net: wireless: ti: remove local VENDOR_ID and DEVICE_ID definitions
net: wireless: ti: wl1251 use new SDIO_VENDOR_ID_TI_WL1251 definition
mmc: core: fix wl1251 sdio quirks
...
Drivers:
* test_power: add support for current and charge_counter
* cpcap-charger: improve charge calculation and limit default charge voltage
* ab8500: convert to IIO
* misc. small fixes all over drivers
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Merge tag 'for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
- test_power: add support for current and charge_counter
- cpcap-charger: improve charge calculation and limit default charge
voltage
- ab8500: convert to IIO
- misc small fixes all over drivers
* tag 'for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (29 commits)
power: supply: bd70528: Add MODULE_ALIAS to allow module auto loading
power: supply: ab8500_charger: Fix inconsistent IS_ERR and PTR_ERR
power: supply: cpcap-charger: cpcap_charger_voltage_to_regval() can be static
power: supply: cpcap-battery: Add basic coulomb counter calibrate support
power: supply: cpcap-battery: Read and save integrator register CCI
power: supply: cpcap-battery: Simplify short term power average calculation
power: supply: cpcap-battery: Simplify coulomb counter calculation with div_s64
power: supply: cpcap-battery: Move coulomb counter units per lsb to ddata
power: supply: cpcap-charger: Allow changing constant charge voltage
power: supply: cpcap-battery: Fix handling of lowered charger voltage
power: supply: cpcap-charger: Improve battery detection
power: supply: cpcap-battery: Check voltage before orderly_poweroff
power: supply: cpcap-charger: Limit voltage to 4.2V for battery
power: supply: ab8500: Handle invalid IRQ from platform_get_irq_byname()
power: supply: ab8500_fg: Do not free non-requested IRQs in probe's error path
power: supply: ab8500: Cleanup probe in reverse order
power: reset: at91: fix __le32 cast in reset code
power: supply: abx500_chargalg: Fix code indentation
mfd: Switch the AB8500 GPADC to IIO
iio: adc: New driver for the AB8500 GPADC
...
- Make gpio gate clks propagate rate setting up to parent
* clk-gpio-flags:
clk: clk-gpio: propagate rate change to parent
* clk-tegra: (23 commits)
clk: tegra: Use match_string() helper to simplify the code
clk: tegra: Fix build error without CONFIG_PM_SLEEP
clk: tegra: Add missing stubs for the case of !CONFIG_PM_SLEEP
clk: tegra: Optimize PLLX restore on Tegra20/30
clk: tegra: Add suspend and resume support on Tegra210
clk: tegra: Share clk and rst register defines with Tegra clock driver
clk: tegra: Use fence_udelay() during PLLU init
clk: tegra: clk-dfll: Add suspend and resume support
clk: tegra: clk-super: Add restore-context support
clk: tegra: clk-super: Fix to enable PLLP branches to CPU
clk: tegra: periph: Add restore_context support
clk: tegra: Support for OSC context save and restore
clk: tegra: pll: Save and restore pll context
clk: tegra: pllout: Save and restore pllout context
clk: tegra: divider: Save and restore divider rate
clk: tegra: Reimplement SOR clocks on Tegra210
clk: tegra: Reimplement SOR clock on Tegra124
clk: tegra: Rename sor0_lvds to sor0_out
clk: tegra: Move SOR0 implementation to Tegra124
clk: tegra: Remove last remains of TEGRA210_CLK_SOR1_SRC
...
* clk-rockchip:
clk: rockchip: protect the pclk_usb_grf as critical on px30
clk: rockchip: add video-related niu clocks as critical on px30
clk: rockchip: move px30 critical clocks to correct clock controller
clk: rockchip: Add div50 clocks for px30 sdmmc, emmc, sdio and nandc
clk: rockchip: Add div50 clock-ids for sdmmc on px30 and nandc
clk: rockchip: make clk_half_divider_ops static
* clk-sprd:
clk: sprd: Use IS_ERR() to validate the return value of syscon_regmap_lookup_by_phandle()
* clk-pxa:
clk: pxa: fix one of the pxa RTC clocks
There have been some significant changes in the core side, both for
ALSA and ASoC, while lots of development have been seen in SOF, as
well as many small fixes/improvements for ASoC codecs and platforms.
Below is a highlight in this cycle:
Core:
- The unification of PCM vmalloc buffer allocation helpers into the
standard API
- Clean up of the default PCM mmap handling for vmalloc & SG-buffer
- Fix potential races at ALSA timer open
- A few new PCM API extensions; just preliminary core changes, the
actual changes in drivers will be merged in 5.6
- Continued ASoC componentization works; now almost everything is a
common ASoC component object. A lot of refactoring and
simplification have been done along with it.
ASoC:
- Many fixes to the Sound Open Firmware (SOF) code
- Wake on voice support for Chromebooks
- SPI support and trigger word detection for RT5677
- New drivers for Analog Devices ADAU7118, Intel Cannonlake systems
with RT1011 and RT5682, Texas Instruments TAS2562 and TAS2770
HD-audio:
- Improved Intel DSP configuration / probe code for SOF
- Plumbing the legacy HD-audio driver with Intel SOF HDMI
- DP-MST support for Nvidia HDMI codecs
- Realtek quirks cleanups and new additions as usual
Others:
- Lots of refactoring and cleanups for FireWire; period-size sharing,
h/w IRQ interval configuration, clock recovery improvements, etc
- USB-audio: Scarlett mixer quirks
- Cleanups of PCM calls in various drivers (including media and USB)
to adapt the core API changes
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Merge tag 'sound-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"There have been some significant changes in the core side, both for
ALSA and ASoC, while lots of development have been seen in SOF, as
well as many small fixes/improvements for ASoC codecs and platforms.
Below is a highlight in this cycle:
Core:
- The unification of PCM vmalloc buffer allocation helpers into the
standard API
- Clean up of the default PCM mmap handling for vmalloc & SG-buffer
- Fix potential races at ALSA timer open
- A few new PCM API extensions; just preliminary core changes, the
actual changes in drivers will be merged in 5.6
- Continued ASoC componentization works; now almost everything is a
common ASoC component object. A lot of refactoring and
simplification have been done along with it.
ASoC:
- Many fixes to the Sound Open Firmware (SOF) code
- Wake on voice support for Chromebooks
- SPI support and trigger word detection for RT5677
- New drivers for Analog Devices ADAU7118, Intel Cannonlake systems
with RT1011 and RT5682, Texas Instruments TAS2562 and TAS2770
HD-audio:
- Improved Intel DSP configuration / probe code for SOF
- Plumbing the legacy HD-audio driver with Intel SOF HDMI
- DP-MST support for Nvidia HDMI codecs
- Realtek quirks cleanups and new additions as usual
Others:
- Lots of refactoring and cleanups for FireWire; period-size sharing,
h/w IRQ interval configuration, clock recovery improvements, etc
- USB-audio: Scarlett mixer quirks
- Cleanups of PCM calls in various drivers (including media and USB)
to adapt the core API changes"
* tag 'sound-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (497 commits)
ALSA: usb-audio: Fix Focusrite Scarlett 6i6 gen1 - input handling
ALSA: hda/realtek - Enable internal speaker of ASUS UX431FLC
ALSA: aloop: Fix dependency on timer API
ASoC: DMI long name - avoid to add board name if matches with product name
ASoC: improve the DMI long card code in asoc-core
ASoC: rsnd: fix DALIGN register for SSIU
ALSA: aloop: Avoid unexpected timer event callback tasklets
ALSA: aloop: Remove redundant locking in timer open function
ASoC: component: Add sync_stop PCM ops
ASoC: pcm: Make ioctl ops optional
ALSA: hda/hdmi - Clear codec->relaxed_resume flag at unbinding
ALSA: hda - Disable audio component for legacy Nvidia HDMI codecs
ALSA: cs4236: fix error return comparison of an unsigned integer
ALSA: usb-audio: Fix NULL dereference at parsing BADD
ALSA: usb-audio: Fix Scarlett 6i6 Gen 2 port data
ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop
ALSA: hda/realtek - Move some alc236 pintbls to fallback table
ALSA: hda/realtek - Move some alc256 pintbls to fallback table
ALSA: docs: Update about the new PCM sync_stop ops
ALSA: pcm: Add card sync_irq field
...
Add support for printing fwnode names using a new conversion
specifier "%pfw" (Sakari Ailus), clean up the software node and
efi/apple-properties code in preparation for improved software node
reference properties handling (Dmitry Torokhov) and fix the struct
fwnode_operations description (Heikki Krogerus).
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Merge tag 'devprop-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework updates from Rafael Wysocki:
"Add support for printing fwnode names using a new conversion specifier
"%pfw" (Sakari Ailus), clean up the software node and
efi/apple-properties code in preparation for improved software node
reference properties handling (Dmitry Torokhov) and fix the struct
fwnode_operations description (Heikki Krogerus)"
* tag 'devprop-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (22 commits)
software node: simplify property_entry_read_string_array()
software node: unify PROPERTY_ENTRY_XXX macros
software node: remove property_entry_read_uNN_array functions
software node: get rid of property_set_pointer()
software node: clean up property_copy_string_array()
software node: mark internal macros with double underscores
efi/apple-properties: use PROPERTY_ENTRY_U8_ARRAY_LEN
software node: introduce PROPERTY_ENTRY_XXX_ARRAY_LEN()
software node: remove DEV_PROP_MAX
device property: Fix the description of struct fwnode_operations
lib/test_printf: Add tests for %pfw printk modifier
lib/vsprintf: Add %pfw conversion specifier for printing fwnode names
lib/vsprintf: OF nodes are first and foremost, struct device_nodes
lib/vsprintf: Make use of fwnode API to obtain node names and separators
lib/vsprintf: Add a note on re-using %pf or %pF
lib/vsprintf: Remove support for %pF and %pf in favour of %pS and %ps
device property: Add a function to obtain a node's prefix
device property: Add fwnode_get_name for returning the name of a node
device property: Add functions for accessing node's parents
device property: Move fwnode_get_parent() up
...
- Update the ACPICA code in the kernel to upstream revision 20191018
including:
* Fixes for Clang warnings (Bob Moore).
* Fix for possible overflow in get_tick_count() (Bob Moore).
* Introduction of acpi_unload_table() (Bob Moore).
* Debugger and utilities updates (Erik Schmauss).
* Fix for unloading tables loaded via configfs (Nikolaus Voss).
- Add support for EFI specific purpose memory to optionally allow
either application-exclusive or core-kernel-mm managed access to
differentiated memory (Dan Williams).
- Fix and clean up processing of the HMAT table (Brice Goglin,
Qian Cai, Tao Xu).
- Update the ACPI EC driver to make it work on systems with
hardware-reduced ACPI (Daniel Drake).
- Always build in support for the Generic Event Device (GED) to
allow one kernel binary to work both on systems with full
hardware ACPI and hardware-reduced ACPI (Arjan van de Ven).
- Fix the table unload mechanism to unregister platform devices
created when the given table was loaded (Andy Shevchenko).
- Rework the lid blacklist handling in the button driver and add
more lid quirks to it (Hans de Goede).
- Improve ACPI-based device enumeration for some platforms based
on Intel BayTrail SoCs (Hans de Goede).
- Add an OpRegion driver for the Cherry Trail Crystal Cove PMIC
and prevent handlers from being registered for unhandled PMIC
OpRegions (Hans de Goede).
- Unify ACPI _HID/_UID matching (Andy Shevchenko).
- Clean up documentation and comments (Cao jin, James Pack, Kacper
Piwiński).
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Merge tag 'acpi-5.5-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
20191018, add support for EFI specific purpose memory, update the ACPI
EC driver to make it work on systems with hardware-reduced ACPI,
improve ACPI-based device enumeration for some platforms, rework the
lid blacklist handling in the button driver and add more lid quirks to
it, unify ACPI _HID/_UID matching, fix assorted issues and clean up
the code and documentation.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20191018
including:
* Fixes for Clang warnings (Bob Moore)
* Fix for possible overflow in get_tick_count() (Bob Moore)
* Introduction of acpi_unload_table() (Bob Moore)
* Debugger and utilities updates (Erik Schmauss)
* Fix for unloading tables loaded via configfs (Nikolaus Voss)
- Add support for EFI specific purpose memory to optionally allow
either application-exclusive or core-kernel-mm managed access to
differentiated memory (Dan Williams)
- Fix and clean up processing of the HMAT table (Brice Goglin, Qian
Cai, Tao Xu)
- Update the ACPI EC driver to make it work on systems with
hardware-reduced ACPI (Daniel Drake)
- Always build in support for the Generic Event Device (GED) to allow
one kernel binary to work both on systems with full hardware ACPI
and hardware-reduced ACPI (Arjan van de Ven)
- Fix the table unload mechanism to unregister platform devices
created when the given table was loaded (Andy Shevchenko)
- Rework the lid blacklist handling in the button driver and add more
lid quirks to it (Hans de Goede)
- Improve ACPI-based device enumeration for some platforms based on
Intel BayTrail SoCs (Hans de Goede)
- Add an OpRegion driver for the Cherry Trail Crystal Cove PMIC and
prevent handlers from being registered for unhandled PMIC OpRegions
(Hans de Goede)
- Unify ACPI _HID/_UID matching (Andy Shevchenko)
- Clean up documentation and comments (Cao jin, James Pack, Kacper
Piwiński)"
* tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits)
ACPI: OSI: Shoot duplicate word
ACPI: HMAT: use %u instead of %d to print u32 values
ACPI: NUMA: HMAT: fix a section mismatch
ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm
ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device
ACPI: NUMA: HMAT: Register HMAT at device_initcall level
device-dax: Add a driver for "hmem" devices
dax: Fix alloc_dax_region() compile warning
lib: Uplevel the pmem "region" ida to a global allocator
x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP
arm/efi: EFI soft reservation to memblock
x86/efi: EFI soft reservation to E820 enumeration
efi: Common enable/disable infrastructure for EFI soft reservation
x86/efi: Push EFI_MEMMAP check into leaf routines
efi: Enumerate EFI_MEMORY_SP
ACPI: NUMA: Establish a new drivers/acpi/numa/ directory
ACPICA: Update version to 20191018
ACPICA: debugger: remove leading whitespaces when converting a string to a buffer
ACPICA: acpiexec: initialize all simple types and field units from user input
ACPICA: debugger: add field unit support for acpi_db_get_next_token
...
- Use nanoseconds (instead of microseconds) as the unit of time in
the cpuidle core and simplify checks for disabled idle states in
the idle loop (Rafael Wysocki).
- Fix and clean up the teo cpuidle governor (Rafael Wysocki).
- Fix the cpuidle registration error code path (Zhenzhong Duan).
- Avoid excessive vmexits in the ACPI cpuidle driver (Yin Fengwei).
- Extend the idle injection infrastructure to be able to measure the
requested duration in nanoseconds and to allow an exit latency
limit for idle states to be specified (Daniel Lezcano).
- Fix cpufreq driver registration and clarify a comment in the
cpufreq core (Viresh Kumar).
- Add NULL checks to the show() and store() methods of sysfs
attributes exposed by cpufreq (Kai Shen).
- Update cpufreq drivers:
* Fix for a plain int as pointer warning from sparse in
intel_pstate (Jamal Shareef).
* Fix for a hardcoded number of CPUs and stack bloat in the
powernv driver (John Hubbard).
* Updates to the ti-cpufreq driver and DT files to support new
platforms and migrate bindings from opp-v1 to opp-v2 (Adam Ford,
H. Nikolaus Schaller).
* Merging of the arm_big_little and vexpress-spc drivers and
related cleanup (Sudeep Holla).
* Fix for imx's default speed grade value (Anson Huang).
* Minor cleanup of the s3c64xx driver (Nathan Chancellor).
* CPU speed bin detection fix for sun50i (Ondrej Jirman).
- Appoint Chanwoo Choi as the new devfreq maintainer.
- Update the devfreq core:
* Check NULL governor in available_governors_show sysfs to prevent
showing wrong governor information and fix a race condition
between devfreq_update_status() and trans_stat_show() (Leonard
Crestez).
* Add new 'interrupt-driven' flag for devfreq governors to allow
interrupt-driven governors to prevent the devfreq core from
polling devices for status (Dmitry Osipenko).
* Improve an error message in devfreq_add_device() (Matthias
Kaehlcke).
- Update devfreq drivers:
* tegra30 driver fixes and cleanups (Dmitry Osipenko).
* Removal of unused property from dt-binding documentation for
the exynos-bus driver (Kamil Konieczny).
* exynos-ppmu cleanup and DT bindings update (Lukasz Luba, Marek
Szyprowski).
- Add new CPU IDs for CometLake Mobile and Desktop to the Intel RAPL
power capping driver (Zhang Rui).
- Allow device initialization in the generic power domains (genpd)
framework to be more straightforward and clean it up (Ulf Hansson).
- Add support for adjusting OPP voltages at run time to the OPP
framework (Stephen Boyd).
- Avoid freeing memory that has never been allocated in the
hibernation core (Andy Whitcroft).
- Clean up function headers in a header file and coding style in the
wakeup IRQs handling code (Ulf Hansson, Xiaofei Tan).
- Clean up the SmartReflex adaptive voltage scaling (AVS) driver for
ARM (Ben Dooks, Geert Uytterhoeven).
- Wrap power management documentation to fit in 80 columns (Bjorn
Helgaas).
- Add pm-graph utility entry to MAINTAINERS (Todd Brandt).
- Update the cpupower utility:
* Fix the handling of set and info subcommands (Abhishek Goel).
* Fix build warnings (Nathan Chancellor).
* Improve mperf_monitor handling (Janakarajan Natarajan).
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Merge tag 'pm-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These include cpuidle changes to use nanoseconds (instead of
microseconds) as the unit of time and to simplify checks for disabled
idle states in the idle loop, some cpuidle fixes and governor updates,
assorted cpufreq updates (driver updates mostly and a few core fixes
and cleanups), devfreq updates (dominated by the tegra30 driver
changes), new CPU IDs for the RAPL power capping driver, relatively
minor updates of the generic power domains (genpd) and operation
performance points (OPP) frameworks, and assorted fixes and cleanups.
There are also two maintainer information updates: Chanwoo Choi will
be maintaining the devfreq subsystem going forward and Todd Brandt is
going to maintain the pm-graph utility (created by him).
Specifics:
- Use nanoseconds (instead of microseconds) as the unit of time in
the cpuidle core and simplify checks for disabled idle states in
the idle loop (Rafael Wysocki)
- Fix and clean up the teo cpuidle governor (Rafael Wysocki)
- Fix the cpuidle registration error code path (Zhenzhong Duan)
- Avoid excessive vmexits in the ACPI cpuidle driver (Yin Fengwei)
- Extend the idle injection infrastructure to be able to measure the
requested duration in nanoseconds and to allow an exit latency
limit for idle states to be specified (Daniel Lezcano)
- Fix cpufreq driver registration and clarify a comment in the
cpufreq core (Viresh Kumar)
- Add NULL checks to the show() and store() methods of sysfs
attributes exposed by cpufreq (Kai Shen)
- Update cpufreq drivers:
* Fix for a plain int as pointer warning from sparse in
intel_pstate (Jamal Shareef)
* Fix for a hardcoded number of CPUs and stack bloat in the
powernv driver (John Hubbard)
* Updates to the ti-cpufreq driver and DT files to support new
platforms and migrate bindings from opp-v1 to opp-v2 (Adam Ford,
H. Nikolaus Schaller)
* Merging of the arm_big_little and vexpress-spc drivers and
related cleanup (Sudeep Holla)
* Fix for imx's default speed grade value (Anson Huang)
* Minor cleanup of the s3c64xx driver (Nathan Chancellor)
* CPU speed bin detection fix for sun50i (Ondrej Jirman)
- Appoint Chanwoo Choi as the new devfreq maintainer.
- Update the devfreq core:
* Check NULL governor in available_governors_show sysfs to prevent
showing wrong governor information and fix a race condition
between devfreq_update_status() and trans_stat_show() (Leonard
Crestez)
* Add new 'interrupt-driven' flag for devfreq governors to allow
interrupt-driven governors to prevent the devfreq core from
polling devices for status (Dmitry Osipenko)
* Improve an error message in devfreq_add_device() (Matthias
Kaehlcke)
- Update devfreq drivers:
* tegra30 driver fixes and cleanups (Dmitry Osipenko)
* Removal of unused property from dt-binding documentation for the
exynos-bus driver (Kamil Konieczny)
* exynos-ppmu cleanup and DT bindings update (Lukasz Luba, Marek
Szyprowski)
- Add new CPU IDs for CometLake Mobile and Desktop to the Intel RAPL
power capping driver (Zhang Rui)
- Allow device initialization in the generic power domains (genpd)
framework to be more straightforward and clean it up (Ulf Hansson)
- Add support for adjusting OPP voltages at run time to the OPP
framework (Stephen Boyd)
- Avoid freeing memory that has never been allocated in the
hibernation core (Andy Whitcroft)
- Clean up function headers in a header file and coding style in the
wakeup IRQs handling code (Ulf Hansson, Xiaofei Tan)
- Clean up the SmartReflex adaptive voltage scaling (AVS) driver for
ARM (Ben Dooks, Geert Uytterhoeven)
- Wrap power management documentation to fit in 80 columns (Bjorn
Helgaas)
- Add pm-graph utility entry to MAINTAINERS (Todd Brandt)
- Update the cpupower utility:
* Fix the handling of set and info subcommands (Abhishek Goel)
* Fix build warnings (Nathan Chancellor)
* Improve mperf_monitor handling (Janakarajan Natarajan)"
* tag 'pm-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (83 commits)
PM: Wrap documentation to fit in 80 columns
cpuidle: Pass exit latency limit to cpuidle_use_deepest_state()
cpuidle: Allow idle injection to apply exit latency limit
cpuidle: Introduce cpuidle_driver_state_disabled() for driver quirks
cpuidle: teo: Avoid code duplication in conditionals
cpufreq: Register drivers only after CPU devices have been registered
cpuidle: teo: Avoid using "early hits" incorrectly
cpuidle: teo: Exclude cpuidle overhead from computations
PM / Domains: Convert to dev_to_genpd_safe() in genpd_syscore_switch()
mmc: tmio: Avoid boilerplate code in ->runtime_suspend()
PM / Domains: Implement the ->start() callback for genpd
PM / Domains: Introduce dev_pm_domain_start()
ARM: OMAP2+: SmartReflex: add omap_sr_pdata definition
PM / wakeirq: remove unnecessary parentheses
power: avs: smartreflex: Remove superfluous cast in debugfs_create_file() call
cpuidle: Use nanoseconds as the unit of time
PM / OPP: Support adjusting OPP voltages at runtime
PM / core: Clean up some function headers in power.h
cpufreq: Add NULL checks to show() and store() methods of cpufreq
cpufreq: intel_pstate: Fix plain int as pointer warning from sparse
...
Pull locking updates from Ingo Molnar:
"The main changes in this cycle were:
- A comprehensive rewrite of the robust/PI futex code's exit handling
to fix various exit races. (Thomas Gleixner et al)
- Rework the generic REFCOUNT_FULL implementation using
atomic_fetch_* operations so that the performance impact of the
cmpxchg() loops is mitigated for common refcount operations.
With these performance improvements the generic implementation of
refcount_t should be good enough for everybody - and this got
confirmed by performance testing, so remove ARCH_HAS_REFCOUNT and
REFCOUNT_FULL entirely, leaving the generic implementation enabled
unconditionally. (Will Deacon)
- Other misc changes, fixes, cleanups"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
lkdtm: Remove references to CONFIG_REFCOUNT_FULL
locking/refcount: Remove unused 'refcount_error_report()' function
locking/refcount: Consolidate implementations of refcount_t
locking/refcount: Consolidate REFCOUNT_{MAX,SATURATED} definitions
locking/refcount: Move saturation warnings out of line
locking/refcount: Improve performance of generic REFCOUNT_FULL code
locking/refcount: Move the bulk of the REFCOUNT_FULL implementation into the <linux/refcount.h> header
locking/refcount: Remove unused refcount_*_checked() variants
locking/refcount: Ensure integer operands are treated as signed
locking/refcount: Define constants for saturation and max refcount values
futex: Prevent exit livelock
futex: Provide distinct return value when owner is exiting
futex: Add mutex around futex exit
futex: Provide state handling for exec() as well
futex: Sanitize exit state handling
futex: Mark the begin of futex exit explicitly
futex: Set task::futex_state to DEAD right after handling futex exit
futex: Split futex_mm_release() for exit/exec
exit/exec: Seperate mm_release()
futex: Replace PF_EXITPIDONE with a state
...
Pull RCU updates from Ingo Molnar:
"The main changes in this cycle were:
- Dynamic tick (nohz) updates, perhaps most notably changes to force
the tick on when needed due to lengthy in-kernel execution on CPUs
on which RCU is waiting.
- Linux-kernel memory consistency model updates.
- Replace rcu_swap_protected() with rcu_prepace_pointer().
- Torture-test updates.
- Documentation updates.
- Miscellaneous fixes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer()
net/sched: Replace rcu_swap_protected() with rcu_replace_pointer()
net/netfilter: Replace rcu_swap_protected() with rcu_replace_pointer()
net/core: Replace rcu_swap_protected() with rcu_replace_pointer()
bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer()
fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer()
drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer()
drm/i915: Replace rcu_swap_protected() with rcu_replace_pointer()
x86/kvm/pmu: Replace rcu_swap_protected() with rcu_replace_pointer()
rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer()
rcu: Suppress levelspread uninitialized messages
rcu: Fix uninitialized variable in nocb_gp_wait()
rcu: Update descriptions for rcu_future_grace_period tracepoint
rcu: Update descriptions for rcu_nocb_wake tracepoint
rcu: Remove obsolete descriptions for rcu_barrier tracepoint
rcu: Ensure that ->rcu_urgent_qs is set before resched IPI
workqueue: Convert for_each_wq to use built-in list check
rcu: Several rcu_segcblist functions can be static
rcu: Remove unused function hlist_bl_del_init_rcu()
Documentation: Rename rcu_node_context_switch() to rcu_note_context_switch()
...
Pull scheduler updates from Ingo Molnar:
"The biggest changes in this cycle were:
- Make kcpustat vtime aware (Frederic Weisbecker)
- Rework the CFS load_balance() logic (Vincent Guittot)
- Misc cleanups, smaller enhancements, fixes.
The load-balancing rework is the most intrusive change: it replaces
the old heuristics that have become less meaningful after the
introduction of the PELT metrics, with a grounds-up load-balancing
algorithm.
As such it's not really an iterative series, but replaces the old
load-balancing logic with the new one. We hope there are no
performance regressions left - but statistically it's highly probable
that there *is* going to be some workload that is hurting from these
chnages. If so then we'd prefer to have a look at that workload and
fix its scheduling, instead of reverting the changes"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
rackmeter: Use vtime aware kcpustat accessor
leds: Use all-in-one vtime aware kcpustat accessor
cpufreq: Use vtime aware kcpustat accessors for user time
procfs: Use all-in-one vtime aware kcpustat accessor
sched/vtime: Bring up complete kcpustat accessor
sched/cputime: Support other fields on kcpustat_field()
sched/cpufreq: Move the cfs_rq_util_change() call to cpufreq_update_util()
sched/fair: Add comments for group_type and balancing at SD_NUMA level
sched/fair: Fix rework of find_idlest_group()
sched/uclamp: Fix overzealous type replacement
sched/Kconfig: Fix spelling mistake in user-visible help text
sched/core: Further clarify sched_class::set_next_task()
sched/fair: Use mul_u32_u32()
sched/core: Simplify sched_class::pick_next_task()
sched/core: Optimize pick_next_task()
sched/core: Make pick_next_task_idle() more consistent
sched/fair: Better document newidle_balance()
leds: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
cpufreq: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
procfs: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
...
Pull perf updates from Ingo Molnar:
"The main kernel side changes in this cycle were:
- Various Intel-PT updates and optimizations (Alexander Shishkin)
- Prohibit kprobes on Xen/KVM emulate prefixes (Masami Hiramatsu)
- Add support for LSM and SELinux checks to control access to the
perf syscall (Joel Fernandes)
- Misc other changes, optimizations, fixes and cleanups - see the
shortlog for details.
There were numerous tooling changes as well - 254 non-merge commits.
Here are the main changes - too many to list in detail:
- Enhancements to core tooling infrastructure, perf.data, libperf,
libtraceevent, event parsing, vendor events, Intel PT, callchains,
BPF support and instruction decoding.
- There were updates to the following tools:
perf annotate
perf diff
perf inject
perf kvm
perf list
perf maps
perf parse
perf probe
perf record
perf report
perf script
perf stat
perf test
perf trace
- And a lot of other changes: please see the shortlog and Git log for
more details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (279 commits)
perf parse: Fix potential memory leak when handling tracepoint errors
perf probe: Fix spelling mistake "addrees" -> "address"
libtraceevent: Fix memory leakage in copy_filter_type
libtraceevent: Fix header installation
perf intel-bts: Does not support AUX area sampling
perf intel-pt: Add support for decoding AUX area samples
perf intel-pt: Add support for recording AUX area samples
perf pmu: When using default config, record which bits of config were changed by the user
perf auxtrace: Add support for queuing AUX area samples
perf session: Add facility to peek at all events
perf auxtrace: Add support for dumping AUX area samples
perf inject: Cut AUX area samples
perf record: Add aux-sample-size config term
perf record: Add support for AUX area sampling
perf auxtrace: Add support for AUX area sample recording
perf auxtrace: Move perf_evsel__find_pmu()
perf record: Add a function to test for kernel support for AUX area sampling
perf tools: Add kernel AUX area sampling definitions
perf/core: Make the mlock accounting simple again
perf report: Jump to symbol source view from total cycles view
...
Yafang Shao