This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <kees@kernel.org>
Pull MM updates from Andrew Morton:
- "powerpc/64s: do not re-activate batched TLB flush" makes
arch_{enter|leave}_lazy_mmu_mode() nest properly (Alexander Gordeev)
It adds a generic enter/leave layer and switches architectures to use
it. Various hacks were removed in the process.
- "zram: introduce compressed data writeback" implements data
compression for zram writeback (Richard Chang and Sergey Senozhatsky)
- "mm: folio_zero_user: clear page ranges" adds clearing of contiguous
page ranges for hugepages. Large improvements during demand faulting
are demonstrated (David Hildenbrand)
- "memcg cleanups" tidies up some memcg code (Chen Ridong)
- "mm/damon: introduce {,max_}nr_snapshots and tracepoint for damos
stats" improves DAMOS stat's provided information, deterministic
control, and readability (SeongJae Park)
- "selftests/mm: hugetlb cgroup charging: robustness fixes" fixes a few
issues in the hugetlb cgroup charging selftests (Li Wang)
- "Fix va_high_addr_switch.sh test failure - again" addresses several
issues in the va_high_addr_switch test (Chunyu Hu)
- "mm/damon/tests/core-kunit: extend existing test scenarios" improves
the KUnit test coverage for DAMON (Shu Anzai)
- "mm/khugepaged: fix dirty page handling for MADV_COLLAPSE" fixes a
glitch in khugepaged which was causing madvise(MADV_COLLAPSE) to
transiently return -EAGAIN (Shivank Garg)
- "arch, mm: consolidate hugetlb early reservation" reworks and
consolidates a pile of straggly code related to reservation of
hugetlb memory from bootmem and creation of CMA areas for hugetlb
(Mike Rapoport)
- "mm: clean up anon_vma implementation" cleans up the anon_vma
implementation in various ways (Lorenzo Stoakes)
- "tweaks for __alloc_pages_slowpath()" does a little streamlining of
the page allocator's slowpath code (Vlastimil Babka)
- "memcg: separate private and public ID namespaces" cleans up the
memcg ID code and prevents the internal-only private IDs from being
exposed to userspace (Shakeel Butt)
- "mm: hugetlb: allocate frozen gigantic folio" cleans up the
allocation of frozen folios and avoids some atomic refcount
operations (Kefeng Wang)
- "mm/damon: advance DAMOS-based LRU sorting" improves DAMOS's movement
of memory betewwn the active and inactive LRUs and adds auto-tuning
of the ratio-based quotas and of monitoring intervals (SeongJae Park)
- "Support page table check on PowerPC" makes
CONFIG_PAGE_TABLE_CHECK_ENFORCED work on powerpc (Andrew Donnellan)
- "nodemask: align nodes_and{,not} with underlying bitmap ops" makes
nodes_and() and nodes_andnot() propagate the return values from the
underlying bit operations, enabling some cleanup in calling code
(Yury Norov)
- "mm/damon: hide kdamond and kdamond_lock from API callers" cleans up
some DAMON internal interfaces (SeongJae Park)
- "mm/khugepaged: cleanups and scan limit fix" does some cleanup work
in khupaged and fixes a scan limit accounting issue (Shivank Garg)
- "mm: balloon infrastructure cleanups" goes to town on the balloon
infrastructure and its page migration function. Mainly cleanups, also
some locking simplification (David Hildenbrand)
- "mm/vmscan: add tracepoint and reason for kswapd_failures reset" adds
additional tracepoints to the page reclaim code (Jiayuan Chen)
- "Replace wq users and add WQ_PERCPU to alloc_workqueue() users" is
part of Marco's kernel-wide migration from the legacy workqueue APIs
over to the preferred unbound workqueues (Marco Crivellari)
- "Various mm kselftests improvements/fixes" provides various unrelated
improvements/fixes for the mm kselftests (Kevin Brodsky)
- "mm: accelerate gigantic folio allocation" greatly speeds up gigantic
folio allocation, mainly by avoiding unnecessary work in
pfn_range_valid_contig() (Kefeng Wang)
- "selftests/damon: improve leak detection and wss estimation
reliability" improves the reliability of two of the DAMON selftests
(SeongJae Park)
- "mm/damon: cleanup kdamond, damon_call(), damos filter and
DAMON_MIN_REGION" does some cleanup work in the core DAMON code
(SeongJae Park)
- "Docs/mm/damon: update intro, modules, maintainer profile, and misc"
performs maintenance work on the DAMON documentation (SeongJae Park)
- "mm: add and use vma_assert_stabilised() helper" refactors and cleans
up the core VMA code. The main aim here is to be able to use the mmap
write lock's lockdep state to perform various assertions regarding
the locking which the VMA code requires (Lorenzo Stoakes)
- "mm, swap: swap table phase II: unify swapin use" removes some old
swap code (swap cache bypassing and swap synchronization) which
wasn't working very well. Various other cleanups and simplifications
were made. The end result is a 20% speedup in one benchmark (Kairui
Song)
- "enable PT_RECLAIM on more 64-bit architectures" makes PT_RECLAIM
available on 64-bit alpha, loongarch, mips, parisc, and um. Various
cleanups were performed along the way (Qi Zheng)
* tag 'mm-stable-2026-02-11-19-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (325 commits)
mm/memory: handle non-split locks correctly in zap_empty_pte_table()
mm: move pte table reclaim code to memory.c
mm: make PT_RECLAIM depends on MMU_GATHER_RCU_TABLE_FREE
mm: convert __HAVE_ARCH_TLB_REMOVE_TABLE to CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE config
um: mm: enable MMU_GATHER_RCU_TABLE_FREE
parisc: mm: enable MMU_GATHER_RCU_TABLE_FREE
mips: mm: enable MMU_GATHER_RCU_TABLE_FREE
LoongArch: mm: enable MMU_GATHER_RCU_TABLE_FREE
alpha: mm: enable MMU_GATHER_RCU_TABLE_FREE
mm: change mm/pt_reclaim.c to use asm/tlb.h instead of asm-generic/tlb.h
mm/damon/stat: remove __read_mostly from memory_idle_ms_percentiles
zsmalloc: make common caches global
mm: add SPDX id lines to some mm source files
mm/zswap: use %pe to print error pointers
mm/vmscan: use %pe to print error pointers
mm/readahead: fix typo in comment
mm: khugepaged: fix NR_FILE_PAGES and NR_SHMEM in collapse_file()
mm: refactor vma_map_pages to use vm_insert_pages
mm/damon: unify address range representation with damon_addr_range
mm/cma: replace snprintf with strscpy in cma_new_area
...
The current swap entry allocation/freeing workflow has never had a clear
definition. This makes it hard to debug or add new optimizations.
This commit introduces a proper definition of how swap entries would be
allocated and freed. Now, most operations are folio based, so they will
never exceed one swap cluster, and we now have a cleaner border between
swap and the rest of mm, making it much easier to follow and debug,
especially with new added sanity checks. Also making more optimization
possible.
Swap entry will be mostly freed and free with a folio bound. The folio
lock will be useful for resolving many swap related races.
Now swap allocation (except hibernation) always starts with a folio in the
swap cache, and gets duped/freed protected by the folio lock:
- folio_alloc_swap() - The only allocation entry point now.
Context: The folio must be locked.
This allocates one or a set of continuous swap slots for a folio and
binds them to the folio by adding the folio to the swap cache. The
swap slots' swap count start with zero value.
- folio_dup_swap() - Increase the swap count of one or more entries.
Context: The folio must be locked and in the swap cache. For now, the
caller still has to lock the new swap entry owner (e.g., PTL).
This increases the ref count of swap entries allocated to a folio.
Newly allocated swap slots' count has to be increased by this helper
as the folio got unmapped (and swap entries got installed).
- folio_put_swap() - Decrease the swap count of one or more entries.
Context: The folio must be locked and in the swap cache. For now, the
caller still has to lock the new swap entry owner (e.g., PTL).
This decreases the ref count of swap entries allocated to a folio.
Typically, swapin will decrease the swap count as the folio got
installed back and the swap entry got uninstalled
This won't remove the folio from the swap cache and free the
slot. Lazy freeing of swap cache is helpful for reducing IO.
There is already a folio_free_swap() for immediate cache reclaim.
This part could be further optimized later.
The above locking constraints could be further relaxed when the swap table
is fully implemented. Currently dup still needs the caller to lock the
swap entry container (e.g. PTL), or a concurrent zap may underflow the
swap count.
Some swap users need to interact with swap count without involving folio
(e.g. forking/zapping the page table or mapping truncate without swapin).
In such cases, the caller has to ensure there is no race condition on
whatever owns the swap count and use the below helpers:
- swap_put_entries_direct() - Decrease the swap count directly.
Context: The caller must lock whatever is referencing the slots to
avoid a race.
Typically the page table zapping or shmem mapping truncate will need
to free swap slots directly. If a slot is cached (has a folio bound),
this will also try to release the swap cache.
- swap_dup_entry_direct() - Increase the swap count directly.
Context: The caller must lock whatever is referencing the entries to
avoid race, and the entries must already have a swap count > 1.
Typically, forking will need to copy the page table and hence needs to
increase the swap count of the entries in the table. The page table is
locked while referencing the swap entries, so the entries all have a
swap count > 1 and can't be freed.
Hibernation subsystem is a bit different, so two special wrappers are here:
- swap_alloc_hibernation_slot() - Allocate one entry from one device.
- swap_free_hibernation_slot() - Free one entry allocated by the above
helper.
All hibernation entries are exclusive to the hibernation subsystem and
should not interact with ordinary swap routines.
By separating the workflows, it will be possible to bind folio more
tightly with swap cache and get rid of the SWAP_HAS_CACHE as a temporary
pin.
This commit should not introduce any behavior change
[kasong@tencent.com: fix leak, per Chris Mason. Remove WARN_ON, per Lai Yi]
Link: https://lkml.kernel.org/r/CAMgjq7AUz10uETVm8ozDWcB3XohkOqf0i33KGrAquvEVvfp5cg@mail.gmail.com
[ryncsn@gmail.com: fix KSM copy pages for swapoff, per Chris]
Link: https://lkml.kernel.org/r/aXxkANcET3l2Xu6J@KASONG-MC4
Link: https://lkml.kernel.org/r/20251220-swap-table-p2-v5-14-8862a265a033@tencent.com
Signed-off-by: Kairui Song <kasong@tencent.com>
Signed-off-by: Kairui Song <ryncsn@gmail.com>
Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Reviewed-by: Baoquan He <bhe@redhat.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Chris Li <chrisl@kernel.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Yosry Ahmed <yosry.ahmed@linux.dev>
Cc: Deepanshu Kartikey <kartikey406@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kairui Song <ryncsn@gmail.com>
Cc: Chris Mason <clm@fb.com>
Cc: Chris Mason <clm@meta.com>
Cc: Lai Yi <yi1.lai@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Since acomp_request_free() checks its argument against NULL, the NULL
pointer checks before calling it added by commit ("7966cf0ebe32 PM:
hibernate: Fix crash when freeing invalid crypto compressor") are
redundant, so drop them.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/6233709.lOV4Wx5bFT@rafael.j.wysocki
When crypto_alloc_acomp() fails, it returns an ERR_PTR value, not NULL.
The cleanup code in save_compressed_image() and load_compressed_image()
unconditionally calls crypto_free_acomp() without checking for ERR_PTR,
which causes crypto_acomp_tfm() to dereference an invalid pointer and
crash the kernel.
This can be triggered when the compression algorithm is unavailable
(e.g., CONFIG_CRYPTO_LZO not enabled).
Fix by adding IS_ERR_OR_NULL() checks before calling crypto_free_acomp()
and acomp_request_free(), similar to the existing kthread_stop() check.
Fixes: b03d542c3c ("PM: hibernate: Use crypto_acomp interface")
Signed-off-by: Malaya Kumar Rout <mrout@redhat.com>
Cc: 6.15+ <stable@vger.kernel.org> # 6.15+
[ rjw: Added 2 empty code lines ]
Link: https://patch.msgid.link/20251230115613.64080-1-mrout@redhat.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Continue recent cleanups of comments in the swap handling code.
Unify the use of white space in the comments, drop some unuseful
comments outside function bodies, and move some other comments into
function bodies.
No functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/5943864.DvuYhMxLoT@rafael.j.wysocki
Several static functions in kernel/power/swap.c were described using the
kernel-doc comment style (/** ... */) even though they are not exported
or referenced by generated documentation. This led to kernel-doc warnings
and stylistic inconsistencies.
Convert these unnecessary kernel-doc blocks to regular C comments,
remove comment blocks that are no longer useful, relocate comments to
more appropriate positions where needed, and fix a few "Return:"
descriptions that were either missing or incorrectly formatted.
No functional changes.
Signed-off-by: Sunday Adelodun <adelodunolaoluwa@yahoo.com>
[ rjw: Subject adjustment, changelog edits, comment edits ]
Link: https://patch.msgid.link/20251114220438.52448-1-adelodunolaoluwa@yahoo.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add a sysfs attribute `/sys/power/hibernate_compression_threads` to
allow runtime configuration of the number of threads used for
compressing and decompressing hibernation images.
The new sysfs interface enables dynamic adjustment at runtime:
# cat /sys/power/hibernate_compression_threads
3
# echo 4 > /sys/power/hibernate_compression_threads
This change provides greater flexibility for debugging and performance
tuning of hibernation without requiring a reboot.
Signed-off-by: Xueqin Luo <luoxueqin@kylinos.cn>
Link: https://patch.msgid.link/c68c62f97fabf32507b8794ad8c16cd22ee656ac.1761046167.git.luoxueqin@kylinos.cn
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The number of compression/decompression threads has a direct impact on
hibernate image generation and resume latency. Using more threads can
reduce overall resume time, but on systems with fewer CPU cores it may
also introduce contention and reduce efficiency.
Performance was evaluated on an 8-core ARM system, averaged over 10 runs:
Threads Hibernate(s) Resume(s)
--------------------------------
3 12.14 18.86
4 12.28 17.48
5 11.09 16.77
6 11.08 16.44
With 5–6 threads, resume latency improves by approximately 12% compared
to the default 3-thread configuration, with negligible impact on
hibernate time.
Introduce a new kernel parameter `hibernate_compression_threads=` that
allows users and integrators to tune the number of
compression/decompression threads at boot. This provides a way to
balance performance and CPU utilization across a wide range of hardware
without recompiling the kernel.
Signed-off-by: Xueqin Luo <luoxueqin@kylinos.cn>
Link: https://patch.msgid.link/f24b3ca6416e230a515a154ed4c121d72a7e05a6.1761046167.git.luoxueqin@kylinos.cn
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Split hib_submit_io into a sync and async version. The sync version is
a small wrapper around bdev_rw_virt which implements all the logic to
add a kernel direct mapping range to a bio and synchronously submits it,
while the async version is slightly simplified using the
bio_add_virt_nofail for adding the single range.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20250507120451.4000627-13-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pull vfs fixes from Christian Brauner:
- Fix io_uring based write-through after converting cifs to use the
netfs library
- Fix aio error handling when doing write-through via netfs library
- Fix performance regression in iomap when used with non-large folio
mappings
- Fix signalfd error code
- Remove obsolete comment in signalfd code
- Fix async request indication in netfs_perform_write() by raising
BDP_ASYNC when IOCB_NOWAIT is set
- Yield swap device immediately to prevent spurious EBUSY errors
- Don't cross a .backup mountpoint from backup volumes in afs to avoid
infinite loops
- Fix a race between umount and async request completion in 9p after 9p
was converted to use the netfs library
* tag 'vfs-6.10-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
netfs, 9p: Fix race between umount and async request completion
afs: Don't cross .backup mountpoint from backup volume
swap: yield device immediately
netfs: Fix setting of BDP_ASYNC from iocb flags
signalfd: drop an obsolete comment
signalfd: fix error return code
iomap: fault in smaller chunks for non-large folio mappings
filemap: add helper mapping_max_folio_size()
netfs: Fix AIO error handling when doing write-through
netfs: Fix io_uring based write-through
Pull power management updates from Rafael Wysocki:
"From the functional perspective, the most significant change here is
the addition of support for Energy Models that can be updated
dynamically at run time.
There is also the addition of LZ4 compression support for hibernation,
the new preferred core support in amd-pstate, new platforms support in
the Intel RAPL driver, new model-specific EPP handling in intel_pstate
and more.
Apart from that, the cpufreq default transition delay is reduced from
10 ms to 2 ms (along with some related adjustments), the system
suspend statistics code undergoes a significant rework and there is a
usual bunch of fixes and code cleanups all over.
Specifics:
- Allow the Energy Model to be updated dynamically (Lukasz Luba)
- Add support for LZ4 compression algorithm to the hibernation image
creation and loading code (Nikhil V)
- Fix and clean up system suspend statistics collection (Rafael
Wysocki)
- Simplify device suspend and resume handling in the power management
core code (Rafael Wysocki)
- Fix PCI hibernation support description (Yiwei Lin)
- Make hibernation take set_memory_ro() return values into account as
appropriate (Christophe Leroy)
- Set mem_sleep_current during kernel command line setup to avoid an
ordering issue with handling it (Maulik Shah)
- Fix wake IRQs handling when pm_runtime_force_suspend() is used as a
driver's system suspend callback (Qingliang Li)
- Simplify pm_runtime_get_if_active() usage and add a replacement for
pm_runtime_put_autosuspend() (Sakari Ailus)
- Add a tracepoint for runtime_status changes tracking (Vilas Bhat)
- Fix section title markdown in the runtime PM documentation (Yiwei
Lin)
- Enable preferred core support in the amd-pstate cpufreq driver
(Meng Li)
- Fix min_perf assignment in amd_pstate_adjust_perf() and make the
min/max limit perf values in amd-pstate always stay within the
(highest perf, lowest perf) range (Tor Vic, Meng Li)
- Allow intel_pstate to assign model-specific values to strings used
in the EPP sysfs interface and make it do so on Meteor Lake
(Srinivas Pandruvada)
- Drop long-unused cpudata::prev_cummulative_iowait from the
intel_pstate cpufreq driver (Jiri Slaby)
- Prevent scaling_cur_freq from exceeding scaling_max_freq when the
latter is an inefficient frequency (Shivnandan Kumar)
- Change default transition delay in cpufreq to 2ms (Qais Yousef)
- Remove references to 10ms minimum sampling rate from comments in
the cpufreq code (Pierre Gondois)
- Honour transition_latency over transition_delay_us in cpufreq (Qais
Yousef)
- Stop unregistering cpufreq cooling on CPU hot-remove (Viresh Kumar)
- General enhancements / cleanups to ARM cpufreq drivers (tianyu2,
Nícolas F. R. A. Prado, Erick Archer, Arnd Bergmann, Anastasia
Belova)
- Update cpufreq-dt-platdev to block/approve devices (Richard Acayan)
- Make the SCMI cpufreq driver get a transition delay value from
firmware (Pierre Gondois)
- Prevent the haltpoll cpuidle governor from shrinking guest
poll_limit_ns below grow_start (Parshuram Sangle)
- Avoid potential overflow in integer multiplication when computing
cpuidle state parameters (C Cheng)
- Adjust MWAIT hint target C-state computation in the ACPI cpuidle
driver and in intel_idle to return a correct value for C0 (He
Rongguang)
- Address multiple issues in the TPMI RAPL driver and add support for
new platforms (Lunar Lake-M, Arrow Lake) to Intel RAPL (Zhang Rui)
- Fix freq_qos_add_request() return value check in dtpm_cpu (Daniel
Lezcano)
- Fix kernel-doc for dtpm_create_hierarchy() (Yang Li)
- Fix file leak in get_pkg_num() in x86_energy_perf_policy (Samasth
Norway Ananda)
- Fix cpupower-frequency-info.1 man page typo (Jan Kratochvil)
- Fix a couple of warnings in the OPP core code related to W=1 builds
(Viresh Kumar)
- Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h (Viresh
Kumar)
- Extend dev_pm_opp_data with turbo support (Sibi Sankar)
- dt-bindings: drop maxItems from inner items (David Heidelberg)"
* tag 'pm-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (95 commits)
dt-bindings: opp: drop maxItems from inner items
OPP: debugfs: Fix warning around icc_get_name()
OPP: debugfs: Fix warning with W=1 builds
cpufreq: Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h
OPP: Extend dev_pm_opp_data with turbo support
Fix cpupower-frequency-info.1 man page typo
cpufreq: scmi: Set transition_delay_us
firmware: arm_scmi: Populate fast channel rate_limit
firmware: arm_scmi: Populate perf commands rate_limit
cpuidle: ACPI/intel: fix MWAIT hint target C-state computation
PM: sleep: wakeirq: fix wake irq warning in system suspend
powercap: dtpm: Fix kernel-doc for dtpm_create_hierarchy() function
cpufreq: Don't unregister cpufreq cooling on CPU hotplug
PM: suspend: Set mem_sleep_current during kernel command line setup
cpufreq: Honour transition_latency over transition_delay_us
cpufreq: Limit resolving a frequency to policy min/max
Documentation: PM: Fix runtime_pm.rst markdown syntax
cpufreq: amd-pstate: adjust min/max limit perf
cpufreq: Remove references to 10ms min sampling rate
cpufreq: intel_pstate: Update default EPPs for Meteor Lake
...
set_memory_ro() and set_memory_rw() can fail, leaving memory
unprotected.
Take the returned value into account and abort in case of
failure.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
