user/sven/linux.git/kernel/power, branch v6.16.2

PM: sleep: console: Fix the black screen issue

2025-08-20T16:41:00Z

[ Upstream commit 4266e8fa56d3d982bf451d382a410b9db432015c ] When the computer enters sleep status without a monitor connected, the system switches the console to the virtual terminal tty63(SUSPEND_CONSOLE). If a monitor is subsequently connected before waking up, the system skips the required VT restoration process during wake-up, leaving the console on tty63 instead of switching back to tty1. To fix this issue, a global flag vt_switch_done is introduced to record whether the system has successfully switched to the suspend console via vt_move_to_console() during suspend. If the switch was completed, vt_switch_done is set to 1. Later during resume, this flag is checked to ensure that the original console is restored properly by calling vt_move_to_console(orig_fgconsole, 0). This prevents scenarios where the resume logic skips console restoration due to incorrect detection of the console state, especially when a monitor is reconnected before waking up. Signed-off-by: tuhaowen Link: https://patch.msgid.link/20250611032345.29962-1-tuhaowen@uniontech.com Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

PM: suspend: clean up redundant filesystems_freeze/thaw() handling

2025-07-15T12:55:00Z

The recently introduced support for freezing filesystems during system suspend included calls to filesystems_freeze() in both suspend_prepare() and enter_state(), as well as calls to filesystems_thaw() in both suspend_finish() and the Unlock path in enter_state(). These are redundant. Moreover, calling filesystems_freeze() twice, from both suspend_prepare() and enter_state(), leads to a black screen and makes the system unable to resume in some cases. Address this as follows: - filesystems_freeze() is already called in suspend_prepare(), which is the proper and consistent place to handle pre-suspend operations. The second call in enter_state() is unnecessary and so remove it. - filesystems_thaw() is invoked in suspend_finish(), which covers successful suspend/resume paths. In the failure case, add a call to filesystems_thaw() only when needed, avoiding the duplicate call in the general Unlock path. This change simplifies the suspend code and avoids repeated freeze/thaw calls, while preserving correct ordering and behavior. Fixes: eacfbf74196f ("power: freeze filesystems during suspend/resume") Signed-off-by: Zihuan Zhang Link: https://patch.msgid.link/20250712030824.81474-1-zhangzihuan@kylinos.cn [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki

PM: suspend: Drop a misplaced pm_restore_gfp_mask() call

2025-07-15T12:54:26Z

The pm_restore_gfp_mask() call added by commit 12ffc3b1513e ("PM: Restrict swap use to later in the suspend sequence") to suspend_devices_and_enter() is done too early because it takes place before calling dpm_resume() in dpm_resume_end() and some swap-backing devices may not be ready at that point. Moreover, dpm_resume_end() called subsequently in the same code path invokes pm_restore_gfp_mask() again and calling it twice in a row is pointless. Drop the misplaced pm_restore_gfp_mask() call from suspend_devices_and_enter() to address this issue. Fixes: 12ffc3b1513e ("PM: Restrict swap use to later in the suspend sequence") Signed-off-by: Rafael J. Wysocki Reviewed-by: Mario Limonciello Link: https://patch.msgid.link/2810409.mvXUDI8C0e@rjwysocki.net [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki

PM: Restrict swap use to later in the suspend sequence

2025-06-26T18:39:34Z

Currently swap is restricted before drivers have had a chance to do their prepare() PM callbacks. Restricting swap this early means that if a driver needs to evict some content from memory into sawp in it's prepare callback, it won't be able to. On AMD dGPUs this can lead to failed suspends under memory pressure situations as all VRAM must be evicted to system memory or swap. Move the swap restriction to right after all devices have had a chance to do the prepare() callback. If there is any problem with the sequence, restore swap in the appropriate dpm resume callbacks or error handling paths. Closes: https://github.com/ROCm/ROCK-Kernel-Driver/issues/174 Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2362 Signed-off-by: Mario Limonciello Tested-by: Nat Wittstock Tested-by: Lucian Langa Link: https://patch.msgid.link/20250613214413.4127087-1-superm1@kernel.org Signed-off-by: Rafael J. Wysocki

Merge tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2025-05-31T22:44:16Z

Pull MM updates from Andrew Morton: - "Add folio_mk_pte()" from Matthew Wilcox simplifies the act of creating a pte which addresses the first page in a folio and reduces the amount of plumbing which architecture must implement to provide this. - "Misc folio patches for 6.16" from Matthew Wilcox is a shower of largely unrelated folio infrastructure changes which clean things up and better prepare us for future work. - "memory,x86,acpi: hotplug memory alignment advisement" from Gregory Price adds early-init code to prevent x86 from leaving physical memory unused when physical address regions are not aligned to memory block size. - "mm/compaction: allow more aggressive proactive compaction" from Michal Clapinski provides some tuning of the (sadly, hard-coded (more sadly, not auto-tuned)) thresholds for our invokation of proactive compaction. In a simple test case, the reduction of a guest VM's memory consumption was dramatic. - "Minor cleanups and improvements to swap freeing code" from Kemeng Shi provides some code cleaups and a small efficiency improvement to this part of our swap handling code. - "ptrace: introduce PTRACE_SET_SYSCALL_INFO API" from Dmitry Levin adds the ability for a ptracer to modify syscalls arguments. At this time we can alter only "system call information that are used by strace system call tampering, namely, syscall number, syscall arguments, and syscall return value. This series should have been incorporated into mm.git's "non-MM" branch, but I goofed. - "fs/proc: extend the PAGEMAP_SCAN ioctl to report guard regions" from Andrei Vagin extends the info returned by the PAGEMAP_SCAN ioctl against /proc/pid/pagemap. This permits CRIU to more efficiently get at the info about guard regions. - "Fix parameter passed to page_mapcount_is_type()" from Gavin Shan implements that fix. No runtime effect is expected because validate_page_before_insert() happens to fix up this error. - "kernel/events/uprobes: uprobe_write_opcode() rewrite" from David Hildenbrand basically brings uprobe text poking into the current decade. Remove a bunch of hand-rolled implementation in favor of using more current facilities. - "mm/ptdump: Drop assumption that pxd_val() is u64" from Anshuman Khandual provides enhancements and generalizations to the pte dumping code. This might be needed when 128-bit Page Table Descriptors are enabled for ARM. - "Always call constructor for kernel page tables" from Kevin Brodsky ensures that the ctor/dtor is always called for kernel pgtables, as it already is for user pgtables. This permits the addition of more functionality such as "insert hooks to protect page tables". This change does result in various architectures performing unnecesary work, but this is fixed up where it is anticipated to occur. - "Rust support for mm_struct, vm_area_struct, and mmap" from Alice Ryhl adds plumbing to permit Rust access to core MM structures. - "fix incorrectly disallowed anonymous VMA merges" from Lorenzo Stoakes takes advantage of some VMA merging opportunities which we've been missing for 15 years. - "mm/madvise: batch tlb flushes for MADV_DONTNEED and MADV_FREE" from SeongJae Park optimizes process_madvise()'s TLB flushing. Instead of flushing each address range in the provided iovec, we batch the flushing across all the iovec entries. The syscall's cost was approximately halved with a microbenchmark which was designed to load this particular operation. - "Track node vacancy to reduce worst case allocation counts" from Sidhartha Kumar makes the maple tree smarter about its node preallocation. stress-ng mmap performance increased by single-digit percentages and the amount of unnecessarily preallocated memory was dramaticelly reduced. - "mm/gup: Minor fix, cleanup and improvements" from Baoquan He removes a few unnecessary things which Baoquan noted when reading the code. - ""Enhance sysfs handling for memory hotplug in weighted interleave" from Rakie Kim "enhances the weighted interleave policy in the memory management subsystem by improving sysfs handling, fixing memory leaks, and introducing dynamic sysfs updates for memory hotplug support". Fixes things on error paths which we are unlikely to hit. - "mm/damon: auto-tune DAMOS for NUMA setups including tiered memory" from SeongJae Park introduces new DAMOS quota goal metrics which eliminate the manual tuning which is required when utilizing DAMON for memory tiering. - "mm/vmalloc.c: code cleanup and improvements" from Baoquan He provides cleanups and small efficiency improvements which Baoquan found via code inspection. - "vmscan: enforce mems_effective during demotion" from Gregory Price changes reclaim to respect cpuset.mems_effective during demotion when possible. because presently, reclaim explicitly ignores cpuset.mems_effective when demoting, which may cause the cpuset settings to violated. This is useful for isolating workloads on a multi-tenant system from certain classes of memory more consistently. - "Clean up split_huge_pmd_locked() and remove unnecessary folio pointers" from Gavin Guo provides minor cleanups and efficiency gains in in the huge page splitting and migrating code. - "Use kmem_cache for memcg alloc" from Huan Yang creates a slab cache for `struct mem_cgroup', yielding improved memory utilization. - "add max arg to swappiness in memory.reclaim and lru_gen" from Zhongkun He adds a new "max" argument to the "swappiness=" argument for memory.reclaim MGLRU's lru_gen. This directs proactive reclaim to reclaim from only anon folios rather than file-backed folios. - "kexec: introduce Kexec HandOver (KHO)" from Mike Rapoport is the first step on the path to permitting the kernel to maintain existing VMs while replacing the host kernel via file-based kexec. At this time only memblock's reserve_mem is preserved. - "mm: Introduce for_each_valid_pfn()" from David Woodhouse provides and uses a smarter way of looping over a pfn range. By skipping ranges of invalid pfns. - "sched/numa: Skip VMA scanning on memory pinned to one NUMA node via cpuset.mems" from Libo Chen removes a lot of pointless VMA scanning when a task is pinned a single NUMA mode. Dramatic performance benefits were seen in some real world cases. - "JFS: Implement migrate_folio for jfs_metapage_aops" from Shivank Garg addresses a warning which occurs during memory compaction when using JFS. - "move all VMA allocation, freeing and duplication logic to mm" from Lorenzo Stoakes moves some VMA code from kernel/fork.c into the more appropriate mm/vma.c. - "mm, swap: clean up swap cache mapping helper" from Kairui Song provides code consolidation and cleanups related to the folio_index() function. - "mm/gup: Cleanup memfd_pin_folios()" from Vishal Moola does that. - "memcg: Fix test_memcg_min/low test failures" from Waiman Long addresses some bogus failures which are being reported by the test_memcontrol selftest. - "eliminate mmap() retry merge, add .mmap_prepare hook" from Lorenzo Stoakes commences the deprecation of file_operations.mmap() in favor of the new file_operations.mmap_prepare(). The latter is more restrictive and prevents drivers from messing with things in ways which, amongst other problems, may defeat VMA merging. - "memcg: decouple memcg and objcg stocks"" from Shakeel Butt decouples the per-cpu memcg charge cache from the objcg's one. This is a step along the way to making memcg and objcg charging NMI-safe, which is a BPF requirement. - "mm/damon: minor fixups and improvements for code, tests, and documents" from SeongJae Park is yet another batch of miscellaneous DAMON changes. Fix and improve minor problems in code, tests and documents. - "memcg: make memcg stats irq safe" from Shakeel Butt converts memcg stats to be irq safe. Another step along the way to making memcg charging and stats updates NMI-safe, a BPF requirement. - "Let unmap_hugepage_range() and several related functions take folio instead of page" from Fan Ni provides folio conversions in the hugetlb code. * tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (285 commits) mm: pcp: increase pcp->free_count threshold to trigger free_high mm/hugetlb: convert use of struct page to folio in __unmap_hugepage_range() mm/hugetlb: refactor __unmap_hugepage_range() to take folio instead of page mm/hugetlb: refactor unmap_hugepage_range() to take folio instead of page mm/hugetlb: pass folio instead of page to unmap_ref_private() memcg: objcg stock trylock without irq disabling memcg: no stock lock for cpu hot-unplug memcg: make __mod_memcg_lruvec_state re-entrant safe against irqs memcg: make count_memcg_events re-entrant safe against irqs memcg: make mod_memcg_state re-entrant safe against irqs memcg: move preempt disable to callers of memcg_rstat_updated memcg: memcg_rstat_updated re-entrant safe against irqs mm: khugepaged: decouple SHMEM and file folios' collapse selftests/eventfd: correct test name and improve messages alloc_tag: check mem_profiling_support in alloc_tag_init Docs/damon: update titles and brief introductions to explain DAMOS selftests/damon/_damon_sysfs: read tried regions directories in order mm/damon/tests/core-kunit: add a test for damos_set_filters_default_reject() mm/damon/paddr: remove unused variable, folio_list, in damon_pa_stat() mm/damon/sysfs-schemes: fix wrong comment on damons_sysfs_quota_goal_metric_strs ...

Merge tag 'pm-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2025-05-27T23:48:47Z

Pull power management updates from Rafael Wysocki: "Once again, the changes are dominated by cpufreq updates, but this time the majority of them are cpufreq core changes, mostly related to the introduction of policy locking guards and __free() usage, and fixes related to boost handling. Still, there is also a significant update of the intel_pstate driver making it register an energy model when running on a hybrid platform which is used for enabling energy-aware scheduling (EAS) if the driver operates in the passive mode (and schedutil is used as the cpufreq governor for all CPUs which is the passive mode default). There are some amd-pstate driver updates too, for a good measure, including the "Requested CPU Min frequency" BIOS option support and new online/offline callbacks. In the cpuidle space, the most significant change is the addition of a C1 demotion on/off sysfs knob to intel_idle which should help some users to configure their systems more precisely. There is also the conversion of the PSCI cpuidle driver to a faux device one and there are two small updates of cpuidle governors. Device power management is also modified quite a bit, especially the handling of devices with asynchronous suspend and resume enabled during system transitions. They are now going to be handled more asynchronously during suspend transitions and somewhat less aggressively during resume transitions. Apart from the above, the operating performance points (OPP) library is now going to use mutex locking guards and scope-based cleanup helpers and there is the usual bunch of assorted fixes and code cleanups. Specifics: - Fix potential division-by-zero error in em_compute_costs() (Yaxiong Tian) - Fix typos in energy model documentation and example driver code (Moon Hee Lee, Atul Kumar Pant) - Rearrange the energy model management code and add a new function for adjusting a CPU energy model after adjusting the capacity of the given CPU to it (Rafael Wysocki) - Refactor cpufreq_online(), add and use cpufreq policy locking guards, use __free() in policy reference counting, and clean up core cpufreq code on top of that (Rafael Wysocki) - Fix boost handling on CPU suspend/resume and sysfs updates (Viresh Kumar) - Fix des_perf clamping with max_perf in amd_pstate_update() (Dhananjay Ugwekar) - Add offline, online and suspend callbacks to the amd-pstate driver, rename and use the existing amd_pstate_epp callbacks in it (Dhananjay Ugwekar) - Add support for the "Requested CPU Min frequency" BIOS option to the amd-pstate driver (Dhananjay Ugwekar) - Reset amd-pstate driver mode after running selftests (Swapnil Sapkal) - Avoid shadowing ret in amd_pstate_ut_check_driver() (Nathan Chancellor) - Add helper for governor checks to the schedutil cpufreq governor and move cpufreq-specific EAS checks to cpufreq (Rafael Wysocki) - Populate the cpu_capacity sysfs entries from the intel_pstate driver after registering asym capacity support (Ricardo Neri) - Add support for enabling Energy-aware scheduling (EAS) to the intel_pstate driver when operating in the passive mode on a hybrid platform (Rafael Wysocki) - Drop redundant cpus_read_lock() from store_local_boost() in the cpufreq core (Seyediman Seyedarab) - Replace sscanf() with kstrtouint() in the cpufreq code and use a symbol instead of a raw number in it (Bowen Yu) - Add support for autonomous CPU performance state selection to the CPPC cpufreq driver (Lifeng Zheng) - OPP: Add dev_pm_opp_set_level() (Praveen Talari) - Introduce scope-based cleanup headers and mutex locking guards in OPP core (Viresh Kumar) - Switch OPP to use kmemdup_array() (Zhang Enpei) - Optimize bucket assignment when next_timer_ns equals KTIME_MAX in the menu cpuidle governor (Zhongqiu Han) - Convert the cpuidle PSCI driver to a faux device one (Sudeep Holla) - Add C1 demotion on/off sysfs knob to the intel_idle driver (Artem Bityutskiy) - Fix typos in two comments in the teo cpuidle governor (Atul Kumar Pant) - Fix denying of auto suspend in pm_suspend_timer_fn() (Charan Teja Kalla) - Move debug runtime PM attributes to runtime_attrs[] (Rafael Wysocki) - Add new devm_ functions for enabling runtime PM and runtime PM reference counting (Bence Csókás) - Remove size arguments from strscpy() calls in the hibernation core code (Thorsten Blum) - Adjust the handling of devices with asynchronous suspend enabled during system suspend and resume to start resuming them immediately after resuming their parents and to start suspending such a device immediately after suspending its first child (Rafael Wysocki) - Adjust messages printed during tasks freezing to avoid using pr_cont() (Andrew Sayers, Paul Menzel) - Clean up unnecessary usage of !! in pm_print_times_init() (Zihuan Zhang) - Add missing wakeup source attribute relax_count to sysfs and remove the space character at the end ofi the string produced by pm_show_wakelocks() (Zijun Hu) - Add configurable pm_test delay for hibernation (Zihuan Zhang) - Disable asynchronous suspend in ucsi_ccg_probe() to prevent the cypd4226 device on Tegra boards from suspending prematurely (Jon Hunter) - Unbreak printing PM debug messages during hibernation and clean up some related code (Rafael Wysocki) - Add a systemd service to run cpupower and change cpupower binding's Makefile to use -lcpupower (John B. Wyatt IV, Francesco Poli)" * tag 'pm-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (72 commits) cpufreq: CPPC: Add support for autonomous selection cpufreq: Update sscanf() to kstrtouint() cpufreq: Replace magic number OPP: switch to use kmemdup_array() PM: freezer: Rewrite restarting tasks log to remove stray *done.* PM: runtime: fix denying of auto suspend in pm_suspend_timer_fn() cpufreq: drop redundant cpus_read_lock() from store_local_boost() cpupower: do not install files to /etc/default/ cpupower: do not call systemctl at install time cpupower: do not write DESTDIR to cpupower.service PM: sleep: Introduce pm_sleep_transition_in_progress() cpufreq/amd-pstate: Avoid shadowing ret in amd_pstate_ut_check_driver() cpufreq: intel_pstate: Document hybrid processor support cpufreq: intel_pstate: EAS: Increase cost for CPUs using L3 cache cpufreq: intel_pstate: EAS support for hybrid platforms PM: EM: Introduce em_adjust_cpu_capacity() PM: EM: Move CPU capacity check to em_adjust_new_capacity() PM: EM: Documentation: Fix typos in example driver code cpufreq: Drop policy locking from cpufreq_policy_is_good_for_eas() PM: sleep: Introduce pm_suspend_in_progress() ...

Merge branches 'pm-runtime' and 'pm-sleep'

2025-05-26T19:21:58Z

Merge updates related to system sleep handling and runtime PM for 6.16-rc1: - Fix denying of auto suspend in pm_suspend_timer_fn() (Charan Teja Kalla). - Move debug runtime PM attributes to runtime_attrs[] (Rafael Wysocki). - Add new devm_ functions for enabling runtime PM and runtime PM reference counting (Bence Csókás). - Remove size arguments from strscpy() calls in the hibernation core code (Thorsten Blum). - Adjust the handling of devices with asynchronous suspend enabled during system suspend and resume to start resuming them immediately after resuming their parents and to start suspending such a device immediately after suspending its first child (Rafael Wysocki). - Adjust messages printed during tasks freezing to avoid using pr_cont() (Andrew Sayers, Paul Menzel). - Clean up unnecessary usage of !! in pm_print_times_init() (Zihuan Zhang). - Add missing wakeup source attribute relax_count to sysfs and remove the space character at the end ofi the string produced by pm_show_wakelocks() (Zijun Hu). - Add configurable pm_test delay for hibernation (Zihuan Zhang). - Disable asynchronous suspend in ucsi_ccg_probe() to prevent the cypd4226 device on Tegra boards from suspending prematurely (Jon Hunter). - Unbreak printing PM debug messages during hibernation and clean up some related code (Rafael Wysocki). * pm-runtime: PM: runtime: fix denying of auto suspend in pm_suspend_timer_fn() PM: sysfs: Move debug runtime PM attributes to runtime_attrs[] PM: runtime: Add new devm functions * pm-sleep: PM: freezer: Rewrite restarting tasks log to remove stray *done.* PM: sleep: Introduce pm_sleep_transition_in_progress() PM: sleep: Introduce pm_suspend_in_progress() PM: sleep: Print PM debug messages during hibernation ucsi_ccg: Disable async suspend in ucsi_ccg_probe() PM: hibernate: add configurable delay for pm_test PM: wakeup: Delete space in the end of string shown by pm_show_wakelocks() PM: wakeup: Add missing wakeup source attribute relax_count PM: sleep: Remove unnecessary !! PM: sleep: Use two lines for "Restarting..." / "done" messages PM: sleep: Make suspend of devices more asynchronous PM: sleep: Suspend async parents after suspending children PM: sleep: Resume children after resuming the parent PM: hibernate: Remove size arguments when calling strscpy()

Merge tag 'for-6.16/block-20250523' of git://git.kernel.dk/linux

2025-05-26T18:39:36Z

Pull block updates from Jens Axboe: - ublk updates: - Add support for updating the size of a ublk instance - Zero-copy improvements - Auto-registering of buffers for zero-copy - Series simplifying and improving GET_DATA and request lookup - Series adding quiesce support - Lots of selftests additions - Various cleanups - NVMe updates via Christoph: - add per-node DMA pools and use them for PRP/SGL allocations (Caleb Sander Mateos, Keith Busch) - nvme-fcloop refcounting fixes (Daniel Wagner) - support delayed removal of the multipath node and optionally support the multipath node for private namespaces (Nilay Shroff) - support shared CQs in the PCI endpoint target code (Wilfred Mallawa) - support admin-queue only authentication (Hannes Reinecke) - use the crc32c library instead of the crypto API (Eric Biggers) - misc cleanups (Christoph Hellwig, Marcelo Moreira, Hannes Reinecke, Leon Romanovsky, Gustavo A. R. Silva) - MD updates via Yu: - Fix that normal IO can be starved by sync IO, found by mkfs on newly created large raid5, with some clean up patches for bdev inflight counters - Clean up brd, getting rid of atomic kmaps and bvec poking - Add loop driver specifically for zoned IO testing - Eliminate blk-rq-qos calls with a static key, if not enabled - Improve hctx locking for when a plug has IO for multiple queues pending - Remove block layer bouncing support, which in turn means we can remove the per-node bounce stat as well - Improve blk-throttle support - Improve delay support for blk-throttle - Improve brd discard support - Unify IO scheduler switching. This should also fix a bunch of lockdep warnings we've been seeing, after enabling lockdep support for queue freezing/unfreezeing - Add support for block write streams via FDP (flexible data placement) on NVMe - Add a bunch of block helpers, facilitating the removal of a bunch of duplicated boilerplate code - Remove obsolete BLK_MQ pci and virtio Kconfig options - Add atomic/untorn write support to blktrace - Various little cleanups and fixes * tag 'for-6.16/block-20250523' of git://git.kernel.dk/linux: (186 commits) selftests: ublk: add test for UBLK_F_QUIESCE ublk: add feature UBLK_F_QUIESCE selftests: ublk: add test case for UBLK_U_CMD_UPDATE_SIZE traceevent/block: Add REQ_ATOMIC flag to block trace events ublk: run auto buf unregisgering in same io_ring_ctx with registering io_uring: add helper io_uring_cmd_ctx_handle() ublk: remove io argument from ublk_auto_buf_reg_fallback() ublk: handle ublk_set_auto_buf_reg() failure correctly in ublk_fetch() selftests: ublk: add test for covering UBLK_AUTO_BUF_REG_FALLBACK selftests: ublk: support UBLK_F_AUTO_BUF_REG ublk: support UBLK_AUTO_BUF_REG_FALLBACK ublk: register buffer to local io_uring with provided buf index via UBLK_F_AUTO_BUF_REG ublk: prepare for supporting to register request buffer automatically ublk: convert to refcount_t selftests: ublk: make IO & device removal test more stressful nvme: rename nvme_mpath_shutdown_disk to nvme_mpath_remove_disk nvme: introduce multipath_always_on module param nvme-multipath: introduce delayed removal of the multipath head node nvme-pci: derive and better document max segments limits nvme-pci: use struct_size for allocation struct nvme_dev ...

PM: freezer: Rewrite restarting tasks log to remove stray done.

2025-05-16T20:22:10Z

`pr_cont()` unfortunately does not work here, as other parts of the Linux kernel log between the two log lines: [18445.295056] r8152-cfgselector 4-1.1.3: USB disconnect, device number 5 [18445.295112] OOM killer enabled. [18445.295115] Restarting tasks ... [18445.295185] usb 3-1: USB disconnect, device number 2 [18445.295193] usb 3-1.1: USB disconnect, device number 3 [18445.296262] usb 3-1.5: USB disconnect, device number 4 [18445.297017] done. [18445.297029] random: crng reseeded on system resumption `pr_cont()` also uses the default log level, normally warning, if the corresponding log line is interrupted. Therefore, replace the `pr_cont()`, and explicitly log it as a separate line with log level info: Restarting tasks: Starting […] Restarting tasks: Done Signed-off-by: Paul Menzel Link: https://patch.msgid.link/20250511174648.950430-1-pmenzel@molgen.mpg.de [ rjw: Rebase on top of an earlier analogous change ] Signed-off-by: Rafael J. Wysocki

PM: sleep: Introduce pm_sleep_transition_in_progress()

2025-05-13T19:59:02Z

The "suspend in progress" check in device_wakeup_enable() does not cover hibernation, but arguably it should do that, so introduce pm_sleep_transition_in_progress() covering transitions during both system suspend and hibernation to use in there and use it also in pm_debug_messages_should_print(). Signed-off-by: Rafael J. Wysocki Reviewed-by: Mario Limonciello Link: https://patch.msgid.link/7820474.EvYhyI6sBW@rjwysocki.net [ rjw: Move the new function definition under CONFIG_PM_SLEEP ] Signed-off-by: Rafael J. Wysocki