suspend to ram · Supported

Maintainers

• M "Rafael J. Wysocki" <rafael@kernel.org>
• R Len Brown <lenb@kernel.org>
• R Pavel Machek <pavel@kernel.org>

Paths

• F Documentation/power/
• F arch/x86/kernel/acpi/sleep*
• F arch/x86/kernel/acpi/wakeup*
• F drivers/base/power/
• F include/linux/freezer.h
• F include/linux/pm.h
• F include/linux/suspend.h
• F kernel/power/

Last 30 days

Most active threads (last 7 days)

• [PATCH] power: snapshot: fix missing kernel-doc parameter descriptions
  2026-05-22 18:14 · 0 replies in 7d · Alexander Lechthaler <hidden>
• [PATCH 00/11] Convert moduleparams to seq_buf
  2026-05-21 13:33 · 1 reply in 7d · Kees Cook <kees@kernel.org>
• [RFC PATCH 00/40] mm: reliable 1GB page allocation
  2026-05-20 15:00 · 1 reply in 7d · Rik van Riel <riel@surriel.com>
• [PATCH 0/3] Shrink time spent in copy_data_pages()
  2026-05-18 21:34 · 3 replies in 7d · Nícolas F. R. A. Prado <hidden>
• [PATCH] PM: hibernate: make LZ4 available for hibernation compression
  2026-05-20 08:14 · 0 replies in 7d · l1rox3 <hidden>
• [PATCH] PM: Use LIST_HEAD() to initialize on stack list head
  2026-05-19 06:18 · 0 replies in 7d · Jisheng Zhang <jszhang@kernel.org>

Active reviewers (last 30 days)

• l1rox3 <hidden>
  1 attestation (1 Tested-by) · last on 2026-05-20

Recent patches

Most-recent 30 patches in this subsystem on lkml (capped at 30), ordered by date desc.

• [PATCH] power: snapshot: fix missing kernel-doc parameter descriptions
  2026-05-22 · Alexander Lechthaler <hidden>
• [PATCH 04/11] treewide: Convert struct kernel_param_ops initializers to DEFINE_KERNEL_PARAM_OPS
  2026-05-21 · Kees Cook <kees@kernel.org>
• [RFC PATCH 33/40] PM: hibernate: walk per-superpageblock free lists in mark_free_pages
  2026-05-20 · Rik van Riel <riel@surriel.com>
• [PATCH] PM: hibernate: make LZ4 available for hibernation compression
  2026-05-20 · l1rox3 <hidden>
• [PATCH] PM: Use LIST_HEAD() to initialize on stack list head
  2026-05-19 · Jisheng Zhang <jszhang@kernel.org>
• [PATCH 3/3] PM: hibernate: Allow disabling zero page check in copy_data_pages()
  2026-05-18 · Nícolas F. R. A. Prado <hidden>
• [PATCH 1/3] PM: hibernate: Print speed statistics of copy_data_pages()
  2026-05-18 · Nícolas F. R. A. Prado <hidden>
• [PATCH 2/3] PM: hibernate: Add platform_enter hibernation test level
  2026-05-18 · Nícolas F. R. A. Prado <hidden>
• [PATCH 1/4] mm: introduce for_each_free_list()
  2026-05-13 · Brendan Jackman <jackmanb@google.com>
• [PATCH v2] PM: sleep: Use complete() in device_pm_sleep_init() and skip no_pm devices in dpm_wait()
  2026-05-13 · Jiakai Xu <hidden>
• [PATCH] docs/power: note Btrfs limitation with FIBMAP for swap file offset
  2026-05-12 · Arun Rao Balappa <hidden>
• [PATCH v4 1/2] PM: wakeup: Add kfuncs to traverse over wakeup_sources
  2026-05-11 · Samuel Wu <hidden>
• [PATCH] PM: hibernate: Use flexible array for CRC uncompressed buffers
  2026-05-10 · Rosen Penev <hidden>
• [PATCH] PM: sleep: Use complete() instead of complete_all() in device_pm_sleep_init()
  2026-05-09 · Jiakai Xu <hidden>
• [PATCH v6 06/22] mm: swap: add a separate type for physical swap slots
  2026-05-05 · Nhat Pham <nphamcs@gmail.com>
• [RFC PATCH 40/45] PM: hibernate: walk per-superpageblock free lists in mark_free_pages
  2026-04-30 · Rik van Riel <riel@surriel.com>
• [PATCH] mm/swap, PM: hibernate: atomically replace hibernation pin
  2026-04-30 · David Carlier <hidden>
• [PATCH 1/2] PM: hibernate: add pm_hibernation_storing_image() helper
  2026-04-28 · Haowen Tu <hidden>
• [PATCH v5] PM: QoS: Introduce boot parameter pm_qos_resume_latency_us
  2026-04-26 · Aaron Tomlin <atomlin@atomlin.com>
• [PATCH] [PATCH] PM: docs: Add comprehensive wakeup_count documentation
  2026-04-19 · chenheyun <hidden>
• Re: Linux 5.15.203
  2026-04-18 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• Re: Linux 5.10.253
  2026-04-18 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• [PATCH] PM: hibernate: align default resume swap with image-device checks
  2026-04-15 · DaeMyung Kang <hidden>
• [PATCH v2] PM: hibernate: keep existing uswsusp swap pin if re-selection fails
  2026-04-14 · DaeMyung Kang <hidden>
• [PATCH] PM: hibernate: preserve uswsusp swap pin across SNAPSHOT_SET_SWAP_AREA re-set failures
  2026-04-14 · DaeMyung Kang <hidden>
• Re: Linux 6.19.12
  2026-04-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• [PATCH v12 01/16] set_memory: set_direct_map_* to take address
  2026-04-10 · Kalyazin, Nikita <hidden>
• [PATCH v9 1/3] PM: sleep: wakeirq: Add support for dedicated shared wake IRQ setup
  2026-04-03 · Krishna Chaitanya Chundru <hidden>
• [PATCH v3] PM: hibernate: call preallocate_image after freeze prepare
  2026-04-03 · Matthew Leach <hidden>
• Re: Linux 6.19.11
  2026-04-02 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• [PATCH v4 6/6] Documentation: power/cpuidle: Document the CPU system wakeup latency QoS
  2025-11-25 · Ulf Hansson <hidden> · 2 Reviewed-by, 1 Tested-by
• [PATCH v2 for 6.19 4/4] PM: EM: Add dump to get-perf-domains in the EM YNL spec
  2026-01-08 · Changwoo Min <changwoo@igalia.com> · 2 Reviewed-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• Re: [REGRESSION][BISECTED] Hibernation: WARNING at kernel/power/main.c:48 pm_restrict_gfp_mask (was: "[PATCH v1] PM: hibernate: Restrict GFP mask in hibernation_snapshot()")
  2025-10-26 · Mario Limonciello <superm1@kernel.org>
• Re: Linux 5.10.246
  2025-10-29 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• Re: Linux 5.15.196
  2025-10-29 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• Re: Linux 5.15.196
  2025-10-29 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• Re: Linux 6.1.158
  2025-10-29 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• Re: Linux 6.12.56
  2025-10-29 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• [PATCH] power/snapshot: add missing kernel-doc comments in snapshot.c
  2025-11-05 · Sunday Adelodun <hidden>
• Re: Linux 6.17.8
  2025-11-13 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• Re: [PATCH v2 2/4] pmdomain: Respect the CPU system-wakeup QoS limit during s2idle
  2025-11-15 · Kevin Hilman <khilman@baylibre.com>
• Re: Linux 6.12.59
  2025-11-24 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>