310 Commits

Author	SHA1	Message	Date
Greg Kroah-Hartman	108d81d25c	Merge cd918ec241 ("orangefs: Do not truncate file size") into android16-6.12-lts ... Steps on the way to 6.12.31 Change-Id: Ic4b1ed54cab9844c75f4824bb7ac3f28e37b3eb7 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>	2025-06-30 08:35:56 +00:00
Ryo Takakura	ac30595154	lockdep: Fix wait context check on softirq for PREEMPT_RT ... [ Upstream commit 61c39d8c83e2077f33e0a2c8980a76a7f323f0ce ] Since: 0c1d7a2c2d ("lockdep: Remove softirq accounting on PREEMPT_RT.") the wait context test for mutex usage within "in softirq context" fails as it references @softirq_context: | wait context tests | -------------------------------------------------------------------------- | rcu | raw | spin |mutex | -------------------------------------------------------------------------- in hardirq context: ok | ok | ok | ok | in hardirq context (not threaded): ok | ok | ok | ok | in softirq context: ok | ok | ok |FAILED| As a fix, add lockdep map for BH disabled section. This fixes the issue by letting us catch cases when local_bh_disable() gets called with preemption disabled where local_lock doesn't get acquired. In the case of "in softirq context" selftest, local_bh_disable() was being called with preemption disable as it's early in the boot. [ boqun: Move the lockdep annotations into __local_bh_*() to avoid false positives because of unpaired local_bh_disable() reported by Borislav Petkov and Peter Zijlstra, and make bh_lock_map only exist for PREEMPT_RT. ] [ mingo: Restored authorship and improved the bh_lock_map definition. ] Signed-off-by: Ryo Takakura <ryotkkr98@gmail.com> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20250321143322.79651-1-boqun.feng@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>	2025-05-29 11:02:08 +02:00
Ziyi Cui	c6f44352ab	ANDROID: softirq: Add EXPORT_SYMBOL_GPL for softirq and tasklet ... The purpose of these symbols is for getting irq/softirq latency. Currently we only have symbols for irq_handler_entry and irq_handler_exit. We would use these latency for further monitoring and debugging. The related tracepoints were defined in trace/events/irq.h. We would use these tracepoints in vendor kernel module. Bug: 411464711 Bug: 344782968 Bug: 227809911 Signed-off-by: Ziyi Cui <ziyic@google.com> Change-Id: Idf4ccdede5232689b2752283539aee54a5f67866 (cherry picked from commit 69b689971ac64f412d7dfbbbcc6cd7a09e221c10) Signed-off-by: Qais Yousef <qyousef@google.com> Signed-off-by: Qinmwu Fang <fangqinwu@xiaomi.corp-partner.google.com>	2025-04-21 10:22:03 +08:00
Greg Kroah-Hartman	2ec0c94f9b	Merge 6.12.5 into android16-6.12 ... GKI (arm64) relevant 129 out of 468 changes, affecting 180 files +1843/-980 e0964a5778 ptp: Add error handling for adjfine callback in ptp_clock_adjtime [1 file, +2/-1] a007f8895f net/sched: tbf: correct backlog statistic for GSO packets [1 file, +12/-6] 9545011e7b net: Fix icmp host relookup triggering ip_rt_bug [1 file, +3/-0] 01f95357e4 ipv6: avoid possible NULL deref in modify_prefix_route() [1 file, +7/-6] 8b591bd522 net/ipv6: release expired exception dst cached in socket [1 file, +3/-3] e48b211c4c tipc: Fix use-after-free of kernel socket in cleanup_bearer(). [1 file, +1/-1] da5cc778e7 netfilter: nft_inner: incorrect percpu area handling under softirq [2 files, +46/-12] a36a6d7037 Revert "udp: avoid calling sock_def_readable() if possible" [1 file, +3/-11] 22074dc1d4 ethtool: Fix wrong mod state in case of verbose and no_mask bitset [1 file, +44/-4] 316183d583 net: avoid potential UAF in default_operstate() [1 file, +6/-1] c00372e41b mmc: sd: SDUC Support Recognition [7 files, +27/-15] 19e22f1e68 mmc: core: Adjust ACMD22 to SDUC [1 file, +18/-6] 42311846d3 mmc: core: Use GFP_NOIO in ACMD22 [1 file, +4/-0] 4e51552bc5 zram: do not mark idle slots that cannot be idle [1 file, +18/-7] 0ab037634b zram: clear IDLE flag in mark_idle() [1 file, +2/-0] 405b6d5f90 ntp: Remove invalid cast in time offset math [1 file, +1/-1] 6358df316d f2fs: clean up w/ F2FS_{BLK_TO_BYTES,BTYES_TO_BLK} [1 file, +29/-39] e6a91ed4b9 f2fs: fix to adjust appropriate length for fiemap [2 files, +4/-3] 8e9fec7f79 f2fs: fix to requery extent which cross boundary of inquiry [1 file, +15/-5] 815d8f0e52 i3c: master: Replace hard code 2 with macro I3C_ADDR_SLOT_STATUS_BITS [2 files, +5/-3] c3806cf647 i3c: master: Extend address status bit to 4 and add I3C_ADDR_SLOT_EXT_DESIRED [2 files, +59/-13] 1117462773 i3c: master: Fix dynamic address leak when 'assigned-address' is present [1 file, +5/-10] 7d4e5e33ea scsi: ufs: core: Always initialize the UIC done completion [1 file, +4/-7] 3ad69f2f08 scsi: ufs: core: Add ufshcd_send_bsg_uic_cmd() for UFS BSG [3 files, +38/-1] 47f4ad956b bpf, vsock: Fix poll() missing a queue [1 file, +3/-0] a222e48fea bpf, vsock: Invoke proto::close on close() [1 file, +40/-27] dabaf26846 xsk: always clear DMA mapping information when unmapping the pool [1 file, +2/-3] 5c9e3bb43a tcp_bpf: Fix the sk_mem_uncharge logic in tcp_bpf_sendmsg [1 file, +4/-7] 7bc37dd9ea ALSA: usb-audio: Notify xrun for low-latency mode [1 file, +11/-3] a78af11806 pmdomain: core: Add missing put_device() [1 file, +1/-0] 913a3f1c06 pmdomain: core: Fix error path in pm_genpd_init() when ida alloc fails [1 file, +19/-17] 5548887987 nvme: don't apply NVME_QUIRK_DEALLOCATE_ZEROES when DSM is not supported [1 file, +2/-1] bdbf87486d bpf: Ensure reg is PTR_TO_STACK in process_iter_arg [2 files, +7/-2] 2459a0b149 drivers/virt: pkvm: Don't fail ioremap() call if MMIO_GUARD fails [1 file, +1/-5] 0da7d4b7ca bpf: Don't mark STACK_INVALID as STACK_MISC in mark_stack_slot_misc [1 file, +6/-3] f9f2a2739e bpf: Fix narrow scalar spill onto 64-bit spilled scalar slots [1 file, +1/-0] 845cc4ee8e nvme-fabrics: handle zero MAXCMD without closing the connection [1 file, +3/-2] c2277e2859 scatterlist: fix incorrect func name in kernel-doc [1 file, +1/-1] 81ec3c6ceb bpf: Handle BPF_EXIST and BPF_NOEXIST for LPM trie [1 file, +20/-3] 6dc076a257 bpf: Remove unnecessary kfree(im_node) in lpm_trie_update_elem [1 file, +1/-3] 7218e441ad bpf: Handle in-place update for full LPM trie correctly [1 file, +21/-23] 412bf01fd5 bpf: Fix exact match conditions in trie_get_next_key() [1 file, +2/-2] e689bc6697 HID: wacom: fix when get product name maybe null pointer [1 file, +2/-1] 3b0c5bb437 can: dev: can_set_termination(): allow sleeping GPIOs [1 file, +1/-1] ba0ee489cd tracing: Fix cmp_entries_dup() to respect sort() comparison rules [1 file, +1/-5] ec643064ab arm64: mm: Fix zone_dma_limit calculation [1 file, +8/-9] 34b6197867 arm64: Ensure bits ASID[15:8] are masked out when the kernel uses 8-bit ASIDs [1 file, +2/-2] abd614bbfc arm64: ptrace: fix partial SETREGSET for NT_ARM_TAGGED_ADDR_CTRL [1 file, +5/-1] 8ab73c34e3 arm64: ptrace: fix partial SETREGSET for NT_ARM_FPMR [1 file, +2/-0] 4105dd76bc arm64: ptrace: fix partial SETREGSET for NT_ARM_POE [1 file, +2/-0] 7f1292f8d4 ALSA: usb-audio: Fix a DMA to stack memory bug [1 file, +27/-15] 39c5d89b56 ALSA: usb-audio: Add extra PID for RME Digiface USB [3 files, +176/-168] 9c191055c7 scsi: ufs: core: sysfs: Prevent div by zero [1 file, +6/-0] 2e7a3bb033 scsi: ufs: core: Cancel RTC work during ufshcd_remove() [1 file, +1/-0] 5a717f43c2 scsi: ufs: core: Add missing post notify for power mode change [2 files, +10/-7] 793e560a6b io_uring: Change res2 parameter type in io_uring_cmd_done [2 files, +3/-3] 85351e4941 Revert "readahead: properly shorten readahead when falling back to do_page_cache_ra()" [1 file, +2/-3] 95e197354e cacheinfo: Allocate memory during CPU hotplug if not done from the primary CPU [1 file, +8/-6] bc031095d1 modpost: Add .irqentry.text to OTHER_SECTIONS [1 file, +1/-1] 178e31df1f bpf: fix OOB devmap writes when deleting elements [1 file, +3/-3] 3dcc20418e dma-buf: fix dma_fence_array_signaled v4 [1 file, +27/-1] f3dbb097d6 dma-fence: Fix reference leak on fence merge failure path [1 file, +2/-0] 4715555964 dma-fence: Use kernel's sort for merging fences [1 file, +61/-67] d486b5741d xsk: fix OOB map writes when deleting elements [1 file, +1/-1] 14258211d6 regmap: detach regmap from dev on regmap_exit [1 file, +12/-0] d562b457e1 mmc: core: Further prevent card detect during shutdown [2 files, +5/-0] 9bfeeeff2c stackdepot: fix stack_depot_save_flags() in NMI context [2 files, +12/-4] a71ddd5b87 sched/numa: fix memory leak due to the overwritten vma->numab_state [1 file, +9/-3] 835ca042df kasan: make report_lock a raw spinlock [1 file, +3/-3] 69d319450d mm/gup: handle NULL pages in unpin_user_pages() [1 file, +10/-1] 1dde3fde62 mm: open-code PageTail in folio_flags() and const_folio_flags() [1 file, +2/-2] bd4d2333a3 mm: open-code page_folio() in dump_page() [1 file, +5/-2] 536ffb4014 mm: fix vrealloc()'s KASAN poisoning logic [1 file, +2/-1] fe1a34e92a mm: respect mmap hint address when aligning for THP [1 file, +1/-0] 5c63e24b1b scsi: ufs: pltfrm: Drop PM runtime reference count after ufshcd_remove() [6 files, +2/-5] 2cec2d916a memblock: allow zero threshold in validate_numa_converage() [1 file, +2/-2] d222934627 epoll: annotate racy check [2 files, +5/-3] 493326c4f1 block: RCU protect disk->conv_zones_bitmap [2 files, +32/-13] b6ce2dbe98 ext4: partial zero eof block on unaligned inode size extension [2 files, +42/-16] ff599ad2d2 cleanup: Adjust scoped_guard() macros to avoid potential warning [1 file, +42/-10] 3946e07552 gpio: free irqs that are still requested when the chip is being removed [1 file, +41/-0] ea74e9675b HID: add per device quirk to force bind to hid-generic [3 files, +8/-2] 17db6ed5a3 media: uvcvideo: RealSense D421 Depth module metadata [1 file, +9/-0] 0c20fadfd0 media: uvcvideo: Add a quirk for the Kaiweets KTI-W02 infrared camera [1 file, +11/-0] 3cc5228d5b media: uvcvideo: Force UVC version to 1.0a for 0408:4033 [1 file, +11/-0] 4150f22342 drm: panel-orientation-quirks: Add quirk for AYA NEO 2 model [1 file, +6/-0] 5d7f35ed5f drm: panel-orientation-quirks: Add quirk for AYA NEO Founder edition [1 file, +6/-0] 187d5ff497 drm: panel-orientation-quirks: Add quirk for AYA NEO GEEK [1 file, +6/-0] fd09880b16 af_packet: avoid erroring out after sock_init_data() in packet_create() [1 file, +6/-6] 61686abc2f Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() [1 file, +1/-0] 32df687e12 Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc() [1 file, +5/-5] 8df832e6b9 net: af_can: do not leave a dangling sk pointer in can_create() [1 file, +1/-0] 03caa9bfb9 net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() [1 file, +7/-5] 691d6d816f net: inet: do not leave a dangling sk pointer in inet_create() [1 file, +10/-12] f44fceb71d net: inet6: do not leave a dangling sk pointer in inet6_create() [1 file, +10/-12] 987aa730ba bpf: Prevent tailcall infinite loop caused by freplace [5 files, +81/-17] 051f49d517 net/tcp: Add missing lockdep annotations for TCP-AO hlist traversals [4 files, +29/-23] 920159e1bf ALSA: usb-audio: Make mic volume workarounds globally applicable [3 files, +45/-48] a50b4aa300 bpf: Call free_htab_elem() after htab_unlock_bucket() [1 file, +39/-17] da561d5fb6 Bluetooth: hci_conn: Reduce hci_conn_drop() calls in two functions [1 file, +3/-10] c55a4c5a04 Bluetooth: hci_conn: Use disable_delayed_work_sync [1 file, +3/-3] 93a6160dc1 Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet [1 file, +9/-4] b04b4fb91d Bluetooth: Add new quirks for ATS2851 [2 files, +20/-4] 359fc41e3c Bluetooth: Support new quirks for ATS2851 [2 files, +15/-1] 166cf43070 net/neighbor: clear error in case strict check is not set [1 file, +1/-0] f63a1caae9 tracing/ftrace: disable preemption in syscall probe [2 files, +44/-4] d1133dd57e tracing: Use atomic64_inc_return() in trace_clock_counter() [1 file, +1/-1] 09c083fbea ring-buffer: Limit time with disabled interrupts in rb_check_pages() [1 file, +72/-26] c11e2ec9a7 pinmux: Use sequential access to access desc->pinmux data [3 files, +100/-77] b865d4e569 scsi: ufs: core: Make DMA mask configuration more flexible [3 files, +13/-9] 2fcb921c27 bpf: put bpf_link's program when link is safe to be deallocated [1 file, +17/-5] bb4a6236a4 leds: class: Protect brightness_show() with led_cdev->led_access mutex [2 files, +12/-4] 7214d3a64e tracing: Fix function name for trampoline [3 files, +36/-8] 9e28513fd2 f2fs: fix f2fs_bug_on when uninstalling filesystem call f2fs_evict_inode. [1 file, +3/-1] b51aa6a07e PCI: qcom: Add support for IPQ9574 [1 file, +1/-0] 617bd1e6c3 PCI: Add ACS quirk for Wangxun FF5xxx NICs [1 file, +9/-6] 1f51ae217d i3c: Use i3cdev->desc->info instead of calling i3c_device_get_info() to avoid deadlock [1 file, +2/-1] 6d41a2d5c1 f2fs: print message if fscorrupted was found in f2fs_new_node_page() [1 file, +6/-1] 924f7dd1e8 f2fs: fix to shrink read extent node in batches [1 file, +41/-28] 1648c7000f serial: 8250_dw: Add Sophgo SG2044 quirk [1 file, +3/-2] 950210c9c7 Revert "nvme: make keep-alive synchronous operation" [1 file, +10/-7] d5b2ddf1f9 io_uring/tctx: work around xa_store() allocation error issue [1 file, +12/-1] cd188519d2 scsi: ufs: pltfrm: Dellocate HBA during ufshcd_pltfrm_remove() [1 file, +1/-0] a39ad4f507 sched/core: Remove the unnecessary need_resched() check in nohz_csd_func() [1 file, +1/-1] f9e144a544 sched/fair: Check idle_cpu() before need_resched() to detect ilb CPU turning busy [1 file, +1/-1] b4ec68868c sched/core: Prevent wakeup of ksoftirqd during idle load balance [1 file, +1/-1] 364dc8070b tracing/eprobe: Fix to release eprobe when failed to add dyn_event [1 file, +5/-0] 1a678f6829 clocksource: Make negative motion detection more robust [4 files, +20/-7] 6aeef0214d softirq: Allow raising SCHED_SOFTIRQ from SMP-call-function on RT kernel [1 file, +11/-4] Changes in 6.12.5 iTCO_wdt: mask NMI_NOW bit for update_no_reboot_bit() call watchdog: xilinx_wwdt: Calculate max_hw_heartbeat_ms using clock frequency watchdog: apple: Actually flush writes after requesting watchdog restart watchdog: mediatek: Make sure system reset gets asserted in mtk_wdt_restart() can: gs_usb: add usb endpoint address detection at driver probe step can: c_can: c_can_handle_bus_err(): update statistics if skb allocation fails can: sun4i_can: sun4i_can_err(): call can_change_state() even if cf is NULL can: hi311x: hi3110_can_ist(): fix potential use-after-free can: m_can: m_can_handle_lec_err(): fix {rx,tx}_errors statistics can: ifi_canfd: ifi_canfd_handle_lec_err(): fix {rx,tx}_errors statistics can: hi311x: hi3110_can_ist(): fix {rx,tx}_errors statistics can: sja1000: sja1000_err(): fix {rx,tx}_errors statistics can: sun4i_can: sun4i_can_err(): fix {rx,tx}_errors statistics can: ems_usb: ems_usb_rx_err(): fix {rx,tx}_errors statistics can: f81604: f81604_handle_can_bus_errors(): fix {rx,tx}_errors statistics ipvs: fix UB due to uninitialized stack access in ip_vs_protocol_init() netfilter: x_tables: fix LED ID check in led_tg_check() netfilter: nft_socket: remove WARN_ON_ONCE on maximum cgroup level selftests: hid: fix typo and exit code net: enetc: Do not configure preemptible TCs if SIs do not support ptp: Add error handling for adjfine callback in ptp_clock_adjtime net/sched: tbf: correct backlog statistic for GSO packets net: hsr: avoid potential out-of-bound access in fill_frame_info() bnxt_en: ethtool: Supply ntuple rss context action net: Fix icmp host relookup triggering ip_rt_bug ipv6: avoid possible NULL deref in modify_prefix_route() can: j1939: j1939_session_new(): fix skb reference counting platform/x86: asus-wmi: Ignore return value when writing thermal policy net: phy: microchip: Reset LAN88xx PHY to ensure clean link state on LAN7800/7850 net/ipv6: release expired exception dst cached in socket dccp: Fix memory leak in dccp_feat_change_recv tipc: Fix use-after-free of kernel socket in cleanup_bearer(). net/smc: initialize close_work early to avoid warning net/smc: fix LGR and link use-after-free issue net/qed: allow old cards not supporting "num_images" to work net: hsr: must allocate more bytes for RedBox support ice: fix PHY Clock Recovery availability check ice: fix PHY timestamp extraction for ETH56G ice: Fix VLAN pruning in switchdev mode idpf: set completion tag for "empty" bufs associated with a packet ixgbevf: stop attempting IPSEC offload on Mailbox API 1.5 ixgbe: downgrade logging of unsupported VF API version to debug ixgbe: Correct BASE-BX10 compliance code igb: Fix potential invalid memory access in igb_init_module() netfilter: nft_inner: incorrect percpu area handling under softirq Revert "udp: avoid calling sock_def_readable() if possible" net: sched: fix erspan_opt settings in cls_flower netfilter: ipset: Hold module reference while requesting a module netfilter: nft_set_hash: skip duplicated elements pending gc run ethtool: Fix wrong mod state in case of verbose and no_mask bitset mlxsw: spectrum_acl_flex_keys: Constify struct mlxsw_afk_element_inst mlxsw: spectrum_acl_flex_keys: Use correct key block on Spectrum-4 geneve: do not assume mac header is set in geneve_xmit_skb() net/mlx5: HWS: Fix memory leak in mlx5hws_definer_calc_layout net/mlx5: HWS: Properly set bwc queue locks lock classes net/mlx5e: SD, Use correct mdev to build channel param net/mlx5e: Remove workaround to avoid syndrome for internal port vsock/test: fix failures due to wrong SO_RCVLOWAT parameter vsock/test: fix parameter types in SO_VM_SOCKETS_* calls net: avoid potential UAF in default_operstate() gpio: grgpio: use a helper variable to store the address of ofdev->dev gpio: grgpio: Add NULL check in grgpio_probe mmc: mtk-sd: use devm_mmc_alloc_host mmc: mtk-sd: Fix error handle of probe function mmc: mtk-sd: fix devm_clk_get_optional usage mmc: mtk-sd: Fix MMC_CAP2_CRYPTO flag setting mmc: sd: SDUC Support Recognition mmc: core: Adjust ACMD22 to SDUC mmc: core: Use GFP_NOIO in ACMD22 zram: do not mark idle slots that cannot be idle zram: clear IDLE flag in mark_idle() ntp: Remove invalid cast in time offset math f2fs: clean up w/ F2FS_{BLK_TO_BYTES,BTYES_TO_BLK} f2fs: fix to adjust appropriate length for fiemap f2fs: fix to requery extent which cross boundary of inquiry i3c: master: Replace hard code 2 with macro I3C_ADDR_SLOT_STATUS_BITS i3c: master: Extend address status bit to 4 and add I3C_ADDR_SLOT_EXT_DESIRED i3c: master: Fix dynamic address leak when 'assigned-address' is present drm/amd/display: calculate final viewport before TAP optimization drm/amd/display: Ignore scalar validation failure if pipe is phantom scsi: ufs: core: Always initialize the UIC done completion scsi: ufs: core: Add ufshcd_send_bsg_uic_cmd() for UFS BSG bpf, vsock: Fix poll() missing a queue bpf, vsock: Invoke proto::close on close() xsk: always clear DMA mapping information when unmapping the pool bpftool: fix potential NULL pointer dereferencing in prog_dump() drm/sti: Add __iomem for mixer_dbg_mxn's parameter tcp_bpf: Fix the sk_mem_uncharge logic in tcp_bpf_sendmsg ALSA: seq: ump: Fix seq port updates per FB info notify ALSA: usb-audio: Notify xrun for low-latency mode tools: Override makefile ARCH variable if defined, but empty spi: mpc52xx: Add cancel_work_sync before module remove ASoC: SOF: ipc3-topology: Convert the topology pin index to ALH dai index ASoC: SOF: ipc3-topology: fix resource leaks in sof_ipc3_widget_setup_comp_dai() pmdomain: core: Add missing put_device() pmdomain: core: Fix error path in pm_genpd_init() when ida alloc fails nvme: don't apply NVME_QUIRK_DEALLOCATE_ZEROES when DSM is not supported x86/pkeys: Change caller of update_pkru_in_sigframe() x86/pkeys: Ensure updated PKRU value is XRSTOR'd bpf: Ensure reg is PTR_TO_STACK in process_iter_arg irqchip/stm32mp-exti: CONFIG_STM32MP_EXTI should not default to y when compile-testing drivers/virt: pkvm: Don't fail ioremap() call if MMIO_GUARD fails bpf: Don't mark STACK_INVALID as STACK_MISC in mark_stack_slot_misc bpf: Fix narrow scalar spill onto 64-bit spilled scalar slots nvme-fabrics: handle zero MAXCMD without closing the connection nvme-tcp: fix the memleak while create new ctrl failed nvme-rdma: unquiesce admin_q before destroy it scsi: sg: Fix slab-use-after-free read in sg_release() scsi: scsi_debug: Fix hrtimer support for ndelay ASoC: mediatek: mt8188-mt6359: Remove hardcoded dmic codec drm/v3d: Enable Performance Counters before clearing them ocfs2: free inode when ocfs2_get_init_inode() fails scatterlist: fix incorrect func name in kernel-doc iio: magnetometer: yas530: use signed integer type for clamp limits smb: client: fix potential race in cifs_put_tcon() bpf: Handle BPF_EXIST and BPF_NOEXIST for LPM trie bpf: Remove unnecessary kfree(im_node) in lpm_trie_update_elem bpf: Handle in-place update for full LPM trie correctly bpf: Fix exact match conditions in trie_get_next_key() x86/CPU/AMD: WARN when setting EFER.AUTOIBRS if and only if the WRMSR fails rust: allow `clippy::needless_lifetimes` HID: i2c-hid: Revert to using power commands to wake on resume HID: wacom: fix when get product name maybe null pointer LoongArch: Add architecture specific huge_pte_clear() LoongArch: KVM: Protect kvm_check_requests() with SRCU ksmbd: fix Out-of-Bounds Read in ksmbd_vfs_stream_read ksmbd: fix Out-of-Bounds Write in ksmbd_vfs_stream_write watchdog: rti: of: honor timeout-sec property can: dev: can_set_termination(): allow sleeping GPIOs can: mcp251xfd: mcp251xfd_get_tef_len(): work around erratum DS80000789E 6. tracing: Fix cmp_entries_dup() to respect sort() comparison rules net :mana :Request a V2 response version for MANA_QUERY_GF_STAT iommufd: Fix out_fput in iommufd_fault_alloc() arm64: mm: Fix zone_dma_limit calculation arm64: Ensure bits ASID[15:8] are masked out when the kernel uses 8-bit ASIDs arm64: ptrace: fix partial SETREGSET for NT_ARM_TAGGED_ADDR_CTRL arm64: ptrace: fix partial SETREGSET for NT_ARM_FPMR arm64: ptrace: fix partial SETREGSET for NT_ARM_POE ALSA: usb-audio: Fix a DMA to stack memory bug ALSA: usb-audio: Add extra PID for RME Digiface USB ALSA: hda/realtek: fix micmute LEDs don't work on HP Laptops ALSA: usb-audio: add mixer mapping for Corsair HS80 ALSA: hda/realtek: Enable mute and micmute LED on HP ProBook 430 G8 ALSA: hda/realtek: Add support for Samsung Galaxy Book3 360 (NP730QFG) scsi: qla2xxx: Fix abort in bsg timeout scsi: qla2xxx: Fix NVMe and NPIV connect issue scsi: qla2xxx: Supported speed displayed incorrectly for VPorts scsi: qla2xxx: Fix use after free on unload scsi: qla2xxx: Remove check req_sg_cnt should be equal to rsp_sg_cnt scsi: ufs: core: sysfs: Prevent div by zero scsi: ufs: core: Cancel RTC work during ufshcd_remove() scsi: ufs: qcom: Only free platform MSIs when ESI is enabled scsi: ufs: pltfrm: Disable runtime PM during removal of glue drivers scsi: ufs: core: Add missing post notify for power mode change nilfs2: fix potential out-of-bounds memory access in nilfs_find_entry() fs/smb/client: avoid querying SMB2_OP_QUERY_WSL_EA for SMB3 POSIX fs/smb/client: Implement new SMB3 POSIX type fs/smb/client: cifs_prime_dcache() for SMB3 POSIX reparse points smb3.1.1: fix posix mounts to older servers io_uring: Change res2 parameter type in io_uring_cmd_done bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Revert "readahead: properly shorten readahead when falling back to do_page_cache_ra()" pmdomain: imx: gpcv2: Adjust delay after power up handshake selftests/damon: add _damon_sysfs.py to TEST_FILES selftest: hugetlb_dio: fix test naming cacheinfo: Allocate memory during CPU hotplug if not done from the primary CPU x86/cacheinfo: Delete global num_cache_leaves drm/amdkfd: hard-code cacheline for gc943,gc944 drm/dp_mst: Fix MST sideband message body length check drm/amdkfd: add MEC version that supports no PCIe atomics for GFX12 drm/amd/pm: fix and simplify workload handling drm/dp_mst: Verify request type in the corresponding down message reply drm/dp_mst: Fix resetting msg rx state after topology removal drm/amd/display: Correct prefetch calculation drm/amd/display: Limit VTotal range to max hw cap minus fp drm/amd/display: Add a left edge pixel if in YCbCr422 or YCbCr420 and odm drm/amdgpu/hdp6.0: do a posting read when flushing HDP drm/amdgpu/hdp4.0: do a posting read when flushing HDP drm/amdgpu/hdp5.0: do a posting read when flushing HDP drm/amdgpu/hdp7.0: do a posting read when flushing HDP drm/amdgpu/hdp5.2: do a posting read when flushing HDP modpost: Add .irqentry.text to OTHER_SECTIONS x86/kexec: Restore GDT on return from ::preserve_context kexec bpf: fix OOB devmap writes when deleting elements dma-buf: fix dma_fence_array_signaled v4 dma-fence: Fix reference leak on fence merge failure path dma-fence: Use kernel's sort for merging fences xsk: fix OOB map writes when deleting elements regmap: detach regmap from dev on regmap_exit arch_numa: Restore nid checks before registering a memblock with a node mmc: sdhci-pci: Add DMI quirk for missing CD GPIO on Vexia Edu Atla 10 tablet mmc: core: Further prevent card detect during shutdown x86/cpu: Add Lunar Lake to list of CPUs with a broken MONITOR implementation ocfs2: update seq_file index in ocfs2_dlm_seq_next stackdepot: fix stack_depot_save_flags() in NMI context lib: stackinit: hide never-taken branch from compiler sched/numa: fix memory leak due to the overwritten vma->numab_state kasan: make report_lock a raw spinlock mm/gup: handle NULL pages in unpin_user_pages() mm/mempolicy: fix migrate_to_node() assuming there is at least one VMA in a MM x86/cpu/topology: Remove limit of CPUs due to disabled IO/APIC x86/mm: Add _PAGE_NOPTISHADOW bit to avoid updating userspace page tables mm/damon: fix order of arguments in damos_before_apply tracepoint mm: memcg: declare do_memsw_account inline mm: open-code PageTail in folio_flags() and const_folio_flags() mm: open-code page_folio() in dump_page() mm: fix vrealloc()'s KASAN poisoning logic mm: respect mmap hint address when aligning for THP scsi: ufs: pltfrm: Drop PM runtime reference count after ufshcd_remove() memblock: allow zero threshold in validate_numa_converage() rust: enable arbitrary_self_types and remove `Receiver` s390/pci: Sort PCI functions prior to creating virtual busses s390/pci: Use topology ID for multi-function devices s390/pci: Ignore RID for isolated VFs epoll: annotate racy check kselftest/arm64: Log fp-stress child startup errors to stdout s390/cpum_sf: Handle CPU hotplug remove during sampling block: RCU protect disk->conv_zones_bitmap btrfs: don't take dev_replace rwsem on task already holding it btrfs: avoid unnecessary device path update for the same device btrfs: canonicalize the device path before adding it btrfs: do not clear read-only when adding sprout device kselftest/arm64: Don't leak pipe fds in pac.exec_sign_all() ext4: partial zero eof block on unaligned inode size extension crypto: ecdsa - Avoid signed integer overflow on signature decoding kcsan: Turn report_filterlist_lock into a raw_spinlock hwmon: (nct6775) Add 665-ACE/600M-CL to ASUS WMI monitoring list ACPI: x86: Make UART skip quirks work on PCI UARTs without an UID ACPI: x86: Add adev NULL check to acpi_quirk_skip_serdev_enumeration() ACPI: video: force native for Apple MacbookPro11,2 and Air7,2 perf/x86/amd: Warn only on new bits set cleanup: Adjust scoped_guard() macros to avoid potential warning iio: magnetometer: fix if () scoped_guard() formatting timekeeping: Always check for negative motion gpio: free irqs that are still requested when the chip is being removed spi: spi-fsl-lpspi: Adjust type of scldiv soc: qcom: llcc: Use designated initializers for LLC settings HID: add per device quirk to force bind to hid-generic firmware: qcom: scm: Allow QSEECOM on Lenovo Yoga Slim 7x soc: qcom: pd-mapper: Add QCM6490 PD maps media: uvcvideo: RealSense D421 Depth module metadata media: uvcvideo: Add a quirk for the Kaiweets KTI-W02 infrared camera media: uvcvideo: Force UVC version to 1.0a for 0408:4033 media: cx231xx: Add support for Dexatek USB Video Grabber 1d19:6108 mmc: core: Add SD card quirk for broken poweroff notification mmc: sdhci-esdhc-imx: enable quirks SDHCI_QUIRK_NO_LED firmware: qcom: scm: Allow QSEECOM on Dell XPS 13 9345 soc: imx8m: Probe the SoC driver as platform driver regmap: maple: Provide lockdep (sub)class for maple tree's internal lock selftests/resctrl: Protect against array overflow when reading strings sched_ext: add a missing rcu_read_lock/unlock pair at scx_select_cpu_dfl() HID: magicmouse: Apple Magic Trackpad 2 USB-C driver support drm/xe/pciids: separate RPL-U and RPL-P PCI IDs drm/xe/pciids: separate ARL and MTL PCI IDs drm/vc4: hdmi: Avoid log spam for audio start failure drm/vc4: hvs: Set AXI panic modes for the HVS drm/xe/pciids: Add PVC's PCI device ID macros wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb drm/xe/pciid: Add new PCI id for ARL drm: panel-orientation-quirks: Add quirk for AYA NEO 2 model drm: panel-orientation-quirks: Add quirk for AYA NEO Founder edition drm: panel-orientation-quirks: Add quirk for AYA NEO GEEK drm/bridge: it6505: Enable module autoloading drm/mcde: Enable module autoloading wifi: rtw89: check return value of ieee80211_probereq_get() for RNR drm/amd/display: Fix out-of-bounds access in 'dcn21_link_encoder_create' drm/radeon/r600_cs: Fix possible int overflow in r600_packet3_check() ASoC: Intel: sof_rt5682: Add HDMI-In capture with rt5682 support for MTL. dlm: fix possible lkb_resource null dereference drm/amd/display: skip disable CRTC in seemless bootup case drm/amd/display: Fix garbage or black screen when resetting otg drm/amd/display: disable SG displays on cyan skillfish drm/xe/ptl: L3bank mask is not available on the media GT drm/xe/xe3: Add initial set of workarounds drm/display: Fix building with GCC 15 ALSA: hda: Use own quirk lookup helper ALSA: hda/conexant: Use the new codec SSID matching ALSA: hda/realtek: Use codec SSID matching for Lenovo devices r8169: don't apply UDP padding quirk on RTL8126A samples/bpf: Fix a resource leak wifi: ath12k: fix atomic calls in ath12k_mac_op_set_bitrate_mask() accel/qaic: Add AIC080 support drm/amd/display: Full exit out of IPS2 when all allow signals have been cleared net: fec_mpc52xx_phy: Use %pa to format resource_size_t net: ethernet: fs_enet: Use %pa to format resource_size_t net/sched: cbs: Fix integer overflow in cbs_set_port_rate() af_packet: avoid erroring out after sock_init_data() in packet_create() Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc() net: af_can: do not leave a dangling sk pointer in can_create() net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() net: inet: do not leave a dangling sk pointer in inet_create() net: inet6: do not leave a dangling sk pointer in inet6_create() wifi: ath10k: avoid NULL pointer error during sdio remove wifi: ath5k: add PCI ID for SX76X wifi: ath5k: add PCI ID for Arcadyan devices fanotify: allow reporting errors on failure to open fd bpf: Prevent tailcall infinite loop caused by freplace ASoC: sdw_utils: Add support for exclusion DAI quirks ASoC: sdw_utils: Add a quirk to allow the cs42l43 mic DAI to be ignored ASoC: Intel: sof_sdw: Add quirk for cs42l43 system using host DMICs ASoC: Intel: sof_sdw: Add quirks for some new Lenovo laptops drm/xe/guc/ct: Flush g2h worker in case of g2h response timeout drm/panel: simple: Add Microchip AC69T88A LVDS Display panel net: sfp: change quirks for Alcatel Lucent G-010S-P net: stmmac: Programming sequence for VLAN packets with split header drm/sched: memset() 'job' in drm_sched_job_init() drm/amd/display: Adding array index check to prevent memory corruption drm/amdgpu/gfx9: Add cleaner shader for GFX9.4.2 drm/amdgpu: clear RB_OVERFLOW bit when enabling interrupts for vega20_ih drm/amdgpu: Dereference the ATCS ACPI buffer netlink: specs: Add missing bitset attrs to ethtool spec drm/amdgpu: refine error handling in amdgpu_ttm_tt_pin_userptr ASoC: sdw_utils: Add quirk to exclude amplifier function ASoC: Intel: soc-acpi-intel-arl-match: Add rt722 and rt1320 support drm/amd/display: Fix underflow when playing 8K video in full screen mode mptcp: annotate data-races around subflow->fully_established dma-debug: fix a possible deadlock on radix_lock jfs: array-index-out-of-bounds fix in dtReadFirst jfs: fix shift-out-of-bounds in dbSplit jfs: fix array-index-out-of-bounds in jfs_readdir jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree fsl/fman: Validate cell-index value obtained from Device Tree net/tcp: Add missing lockdep annotations for TCP-AO hlist traversals drm/panic: Add ABGR2101010 support drm/amd/display: Remove hw w/a toggle if on DP2/HPO drm/amd/display: parse umc_info or vram_info based on ASIC drm/amd/display: Prune Invalid Modes For HDMI Output drm/amdgpu: skip amdgpu_device_cache_pci_state under sriov virtio-net: fix overflow inside virtnet_rq_alloc ALSA: usb-audio: Make mic volume workarounds globally applicable drm/amdgpu: set the right AMDGPU sg segment limitation wifi: ipw2x00: libipw_rx_any(): fix bad alignment wifi: brcmfmac: Fix oops due to NULL pointer dereference in brcmf_sdiod_sglist_rw() bpf: Call free_htab_elem() after htab_unlock_bucket() mptcp: fix possible integer overflow in mptcp_reset_tout_timer dsa: qca8k: Use nested lock to avoid splat i2c: i801: Add support for Intel Panther Lake Bluetooth: hci_conn: Reduce hci_conn_drop() calls in two functions Bluetooth: btusb: Add RTL8852BE device 0489:e123 to device tables Bluetooth: btusb: Add USB HW IDs for MT7920/MT7925 Bluetooth: hci_conn: Use disable_delayed_work_sync Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet Bluetooth: Add new quirks for ATS2851 Bluetooth: Support new quirks for ATS2851 Bluetooth: Set quirks for ATS2851 Bluetooth: btusb: Add new VID/PID 0489/e111 for MT7925 Bluetooth: btusb: Add new VID/PID 0489/e124 for MT7925 Bluetooth: btusb: Add 3 HWIDs for MT7925 ASoC: hdmi-codec: reorder channel allocation list rocker: fix link status detection in rocker_carrier_init() net/neighbor: clear error in case strict check is not set netpoll: Use rcu_access_pointer() in __netpoll_setup pinctrl: freescale: fix COMPILE_TEST error with PINCTRL_IMX_SCU rtla: Fix consistency in getopt_long for timerlat_hist tracing/ftrace: disable preemption in syscall probe tracing: Use atomic64_inc_return() in trace_clock_counter() tools/rtla: fix collision with glibc sched_attr/sched_set_attr rtla/timerlat: Make timerlat_top_cpu->*_count unsigned long long rtla/timerlat: Make timerlat_hist_cpu->*_count unsigned long long scsi: hisi_sas: Add cond_resched() for no forced preemption model scsi: hisi_sas: Create all dump files during debugfs initialization ring-buffer: Limit time with disabled interrupts in rb_check_pages() pinmux: Use sequential access to access desc->pinmux data scsi: ufs: core: Make DMA mask configuration more flexible iommu/amd: Fix corruption when mapping large pages from 0 bpf: put bpf_link's program when link is safe to be deallocated scsi: lpfc: Call lpfc_sli4_queue_unset() in restart and rmmod paths scsi: lpfc: Check SLI_ACTIVE flag in FDMI cmpl before submitting follow up FDMI scsi: lpfc: Prevent NDLP reference count underflow in dev_loss_tmo callback clk: qcom: rcg2: add clk_rcg2_shared_floor_ops clk: qcom: rpmh: add support for SAR2130P clk: qcom: tcsrcc-sm8550: add SAR2130P support clk: qcom: dispcc-sm8550: enable support for SAR2130P clk: qcom: clk-alpha-pll: Add NSS HUAYRA ALPHA PLL support for ipq9574 leds: class: Protect brightness_show() with led_cdev->led_access mutex scsi: st: Don't modify unknown block number in MTIOCGET scsi: st: Add MTIOCGET and MTLOAD to ioctls allowed after device reset pinctrl: qcom-pmic-gpio: add support for PM8937 pinctrl: qcom: spmi-mpp: Add PM8937 compatible thermal/drivers/qcom/tsens-v1: Add support for MSM8937 tsens nvdimm: rectify the illogical code within nd_dax_probe() smb: client: memcpy() with surrounding object base address tracing: Fix function name for trampoline tools/rtla: Enhance argument parsing in timerlat_load.py verification/dot2: Improve dot parser robustness mailbox: pcc: Check before sending MCTP PCC response ACK f2fs: fix f2fs_bug_on when uninstalling filesystem call f2fs_evict_inode. KMSAN: uninit-value in inode_go_dump (5) i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request PCI: qcom: Add support for IPQ9574 PCI: vmd: Add DID 8086:B06F and 8086:B60B for Intel client SKUs PCI: vmd: Set devices to D0 before enabling PM L1 Substates PCI: Detect and trust built-in Thunderbolt chips PCI: starfive: Enable controller runtime PM before probing host bridge PCI: Add 'reset_subordinate' to reset hierarchy below bridge PCI: Add ACS quirk for Wangxun FF5xxx NICs remoteproc: qcom: pas: enable SAR2130P audio DSP support i3c: Use i3cdev->desc->info instead of calling i3c_device_get_info() to avoid deadlock f2fs: print message if fscorrupted was found in f2fs_new_node_page() f2fs: fix to shrink read extent node in batches f2fs: add a sysfs node to limit max read extent count per-inode ACPI: x86: Add skip i2c clients quirk for Acer Iconia One 8 A1-840 ACPI: x86: Clean up Asus entries in acpi_quirk_skip_dmi_ids[] LoongArch: Fix sleeping in atomic context for PREEMPT_RT fs/ntfs3: Fix warning in ni_fiemap fs/ntfs3: Fix case when unmarked clusters intersect with zone regulator: qcom-rpmh: Update ranges for FTSMPS525 usb: chipidea: add CI_HDRC_HAS_SHORT_PKT_LIMIT flag usb: chipidea: udc: limit usb request length to max 16KB usb: chipidea: udc: create bounce buffer for problem sglist entries if possible usb: chipidea: udc: handle USB Error Interrupt if IOC not set usb: typec: ucsi: Do not call ACPI _DSM method for UCSI read operations iio: adc: ad7192: properly check spi_get_device_match_data() iio: light: ltr501: Add LTER0303 to the supported devices usb: typec: ucsi: glink: be more precise on orientation-aware ports ASoC: amd: yc: fix internal mic on Redmi G 2022 drm/amdgpu/vcn: reset fw_shared when VCPU buffers corrupted on vcn v4.0.3 MIPS: Loongson64: DTS: Really fix PCIe port nodes for ls7a ASoC: amd: yc: Add quirk for microphone on Lenovo Thinkpad T14s Gen 6 21M1CTO1WW powerpc/prom_init: Fixup missing powermac #size-cells misc: eeprom: eeprom_93cx6: Add quirk for extra read clock cycle rtc: cmos: avoid taking rtc_lock for extended period of time serial: 8250_dw: Add Sophgo SG2044 quirk Revert "nvme: make keep-alive synchronous operation" irqchip/gicv3-its: Add workaround for hip09 ITS erratum 162100801 smb: client: don't try following DFS links in cifs_tree_connect() setlocalversion: work around "git describe" performance io_uring/tctx: work around xa_store() allocation error issue scsi: ufs: pltfrm: Dellocate HBA during ufshcd_pltfrm_remove() drm/xe/devcoredump: Use drm_puts and already cached local variables drm/xe/devcoredump: Improve section headings and add tile info drm/xe/devcoredump: Add ASCII85 dump helper function drm/xe/guc: Copy GuC log prior to dumping drm/xe/forcewake: Add a helper xe_force_wake_ref_has_domain() drm/xe/devcoredump: Update handling of xe_force_wake_get return drm/amd/display: Add option to retrieve detile buffer size sched: fix warning in sched_setaffinity sched/core: Remove the unnecessary need_resched() check in nohz_csd_func() sched/fair: Check idle_cpu() before need_resched() to detect ilb CPU turning busy sched/core: Prevent wakeup of ksoftirqd during idle load balance sched/deadline: Fix warning in migrate_enable for boosted tasks btrfs: drop unused parameter options from open_ctree() btrfs: drop unused parameter data from btrfs_fill_super() btrfs: fix mount failure due to remount races btrfs: fix missing snapshot drew unlock when root is dead during swap activation clk: en7523: Initialize num before accessing hws in en7523_register_clocks() tracing/eprobe: Fix to release eprobe when failed to add dyn_event x86: Fix build regression with CONFIG_KEXEC_JUMP enabled Revert "unicode: Don't special case ignorable code points" vfio/mlx5: Align the page tracking max message size with the device capability selftests/ftrace: adjust offset for kprobe syntax error test KVM: x86/mmu: Ensure that kvm_release_pfn_clean() takes exact pfn from kvm_faultin_pfn() jffs2: Prevent rtime decompress memory corruption jffs2: Fix rtime decompressor media: ipu6: use the IPU6 DMA mapping APIs to do mapping ocfs2: Revert "ocfs2: fix the la space leak when unmounting an ocfs2 volume" net/mlx5: unique names for per device caches ASoC: Intel: avs: Fix return status of avs_pcm_hw_constraints_init() drm/amdgpu: rework resume handling for display (v2) ALSA: hda: Fix build error without CONFIG_SND_DEBUG Revert "drm/amd/display: parse umc_info or vram_info based on ASIC" s390/pci: Fix leak of struct zpci_dev when zpci_add_device() fails ALSA: hda/realtek: Fix spelling mistake "Firelfy" -> "Firefly" timekeeping: Remove CONFIG_DEBUG_TIMEKEEPING clocksource: Make negative motion detection more robust softirq: Allow raising SCHED_SOFTIRQ from SMP-call-function on RT kernel Linux 6.12.5 Change-Id: If1b834954ed2ee1a16886f9a9909c6ca62d93b6c Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>	2024-12-15 11:57:47 +00:00
K Prateek Nayak	6aeef0214d	softirq: Allow raising SCHED_SOFTIRQ from SMP-call-function on RT kernel ... commit 6675ce20046d149e1e1ffe7e9577947dee17aad5 upstream. do_softirq_post_smp_call_flush() on PREEMPT_RT kernels carries a WARN_ON_ONCE() for any SOFTIRQ being raised from an SMP-call-function. Since do_softirq_post_smp_call_flush() is called with preempt disabled, raising a SOFTIRQ during flush_smp_call_function_queue() can lead to longer preempt disabled sections. Since commit b2a02fc43a ("smp: Optimize send_call_function_single_ipi()") IPIs to an idle CPU in TIF_POLLING_NRFLAG mode can be optimized out by instead setting TIF_NEED_RESCHED bit in idle task's thread_info and relying on the flush_smp_call_function_queue() in the idle-exit path to run the SMP-call-function. To trigger an idle load balancing, the scheduler queues nohz_csd_function() responsible for triggering an idle load balancing on a target nohz idle CPU and sends an IPI. Only now, this IPI is optimized out and the SMP-call-function is executed from flush_smp_call_function_queue() in do_idle() which can raise a SCHED_SOFTIRQ to trigger the balancing. So far, this went undetected since, the need_resched() check in nohz_csd_function() would make it bail out of idle load balancing early as the idle thread does not clear TIF_POLLING_NRFLAG before calling flush_smp_call_function_queue(). The need_resched() check was added with the intent to catch a new task wakeup, however, it has recently discovered to be unnecessary and will be removed in the subsequent commit after which nohz_csd_function() can raise a SCHED_SOFTIRQ from flush_smp_call_function_queue() to trigger an idle load balance on an idle target in TIF_POLLING_NRFLAG mode. nohz_csd_function() bails out early if "idle_cpu()" check for the target CPU, and does not lock the target CPU's rq until the very end, once it has found tasks to run on the CPU and will not inhibit the wakeup of, or running of a newly woken up higher priority task. Account for this and prevent a WARN_ON_ONCE() when SCHED_SOFTIRQ is raised from flush_smp_call_function_queue(). Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20241119054432.6405-2-kprateek.nayak@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2024-12-14 20:04:16 +01:00
Jacky Liu	3f3b52319d	ANDROID: Export raise_softirq ... Pending softirq won’t block turning off idle tick, so it will take longer to be handled. This is for power saving purposes but has extra delay. From above, it needs to export raise_softirq for external module to speed up the time sensitive event. Bug: 342105533 Change-Id: Icfe46aeb62b7feea19396a210e930f72f402369c Signed-off-by: Jacky Liu <qsliu@google.com> (cherry picked from commit 0935fda826e02c4fc645164d40f186f1bfb21a3f)	2024-12-09 17:48:52 +00:00
Will McVicker	be5523743f	Merge 'android-mainline' into 'android16-6.12' ... This catches up android16-6.12 with android-mainline to 6.12-rc5. Bug: 367265496 Change-Id: I21a79f239099636302f4ad879323b19676a5a593 Signed-off-by: Matthias Maennich <maennich@google.com> Signed-off-by: Will McVicker <willmcvicker@google.com>	2024-11-04 10:44:17 -08:00
Pavankumar Kondeti	0312436e3f	ANDROID: softirq: defer softirq processing to ksoftirqd if CPU is busy with RT ... Defer the softirq processing to ksoftirqd if a RT task is running or queued on the current CPU. This complements the RT task placement algorithm which tries to find a CPU that is not currently busy with softirqs. Currently NET_TX, NET_RX, BLOCK and IRQ_POLL softirqs are only deferred as they can potentially run for long time. Additionally, this patch stubs out ksoftirqd_running() logic, in the CONFIG_RT_SOFTIRQ_AWARE_SCHED case, as deferring potentially long-running softirqs will cause the logic to not process shorter-running softirqs immediately. By stubbing it out the potentially long running softirqs are deferred, but the shorter running ones can still run immediately. This patch includes folded-in fixes by: Lingutla Chandrasekhar <clingutla@codeaurora.org> Satya Durga Srinivasu Prabhala <satyap@codeaurora.org> J. Avila <elavila@google.com> Cc: John Dias <joaodias@google.com> Cc: Connor O'Brien <connoro@google.com> Cc: Rick Yiu <rickyiu@google.com> Cc: John Kacur <jkacur@redhat.com> Cc: Qais Yousef <qyousef@google.com> Cc: Chris Redpath <chris.redpath@arm.com> Cc: Abhijeet Dharmapurikar <adharmap@quicinc.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: kernel-team@android.com Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> [satyap@codeaurora.org: trivial merge conflict resolution.] Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org> [elavila: Port to mainline, squash with bugfix] Signed-off-by: J. Avila <elavila@google.com> [jstultz: Rebase to linus/HEAD, minor rearranging of code, included bug fix Reported-by: Qais Yousef <qais.yousef@arm.com> ] Signed-off-by: John Stultz <jstultz@google.com> Link: https://lore.kernel.org/lkml/20221116075929.453876-4-jstultz@google.com/ [jstultz: Had to rework this previous cherry-pick to android15-6.6 incorrectly re-added the ksoftirqd_running logic which was previously removed, and resulted in build issues for the !CONFIG_RT_SOFTIRQ_AWARE_SCHED case] Signed-off-by: John Stultz <jstultz@google.com> Change-Id: I626250ff25d2915e72b8758e9d00ceac6a182df1 Bug: 168521633 Bug: 332627282 --- v4: * Fix commit message to accurately note long-running softirqs (suggested by Qais) * Switch to using rt_task(current) (suggested by Qais) v5: * Switch to using CONFIG_RT_SOFTIRQ_AWARE_SCHED (suggested by Joel Fernandes <joel@joelfernandes.org>)	2024-10-24 18:49:26 +00:00
Connor O'Brien	01603b5411	ANDROID: sched: Avoid placing RT threads on cores handling long softirqs ... In certain audio use cases, scheduling RT threads on cores that are handling softirqs can lead to glitches. Prevent this behavior in cases where the softirq is likely to take a long time. To avoid unnecessary migrations, the old behavior is preserved for RCU, SCHED and TIMER irqs which are expected to be relatively quick. This patch reworks and combines two related changes originally by John Dias <joaodias@google.com> Cc: John Dias <joaodias@google.com> Cc: Connor O'Brien <connoro@google.com> Cc: Rick Yiu <rickyiu@google.com> Cc: John Kacur <jkacur@redhat.com> Cc: Qais Yousef <qyousef@google.com> Cc: Chris Redpath <chris.redpath@arm.com> Cc: Abhijeet Dharmapurikar <adharmap@quicinc.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: kernel-team@android.com Signed-off-by: John Dias <joaodias@google.com> [elavila: Port to mainline, amend commit text] Signed-off-by: J. Avila <elavila@google.com> [connoro: Reworked, simplified, and merged two patches together] Signed-off-by: Connor O'Brien <connoro@google.com> [jstultz: Further simplified and fixed issues, reworded commit message, removed arm64-isms] Signed-off-by: John Stultz <jstultz@google.com> Link: https://lore.kernel.org/lkml/20221116075929.453876-3-jstultz@google.com/ [xuewen: resolve conflicts with android15-6.6] Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com> Signed-off-by: John Stultz <jstultz@google.com> Bug: 168521633 Bug: 332627282 Change-Id: Ia5b5ce37a41ebf83e6295c5ae39f1bd321bf6036 --- v2: * Reformatted Kconfig entry to match coding style (Reported-by: Randy Dunlap <rdunlap@infradead.org>) * Made rt_task_fits_capacity_and_may_preempt static to avoid warnings (Reported-by: kernel test robot <lkp@intel.com>) * Rework to use preempt_count and drop kconfig dependency on ARM64 v3: * Use introduced __cpu_softirq_pending() to avoid s390 build issues (Reported-by: kernel test robot <lkp@intel.com>) v4: * Drop TASKLET_SOFTIRQ from LONG_SOFTIRQS (suggested by Qais) * Depend on !PREEMPT_RT (Suggested by Qais) * Larger simplification of logic (suggested by Qais) * Rework LONG_SOFTIRQS to use BIT() macros * Rename task_may_preempt() to cpu_busy_with_softirqs() v5: * Conditionalize active_softirqs handling (suggested by Alexander Gordeev <agordeev@linux.ibm.com>) * Reorder rt_task_fits_cpu to have the "fast" function first (Suggested by Alexander Gordeev <agordeev@linux.ibm.com>) * Fix bug I introduced in v2 condensing task_thread_info(task)->preempt_count to preempt_count() (Reported-by: Alexander Gordeev <agordeev@linux.ibm.com>) * Tweak comment discription to remove the vauge "slow" descriptor of softirqs being run by ksoftirqd (Suggested by Alexander Gordeev <agordeev@linux.ibm.com>) * Switch to using CONFIG_RT_SOFTIRQ_AWARE_SCHED (suggested by Joel Fernandes <joel@joelfernandes.org>) * Simplify cpu_busy_with_softirqs() logic as pointed out by Alexander Gordeev <agordeev@linux.ibm.com> * Switch to using IS_ENABLED rather then defining my own macro (suggsted by Joel Fernandes <joel@joelfernandes.org>)	2024-10-24 18:49:26 +00:00
Changki Kim	716989b6e5	ANDROID: softirq: Export irq_handler_exit tracepoint ... Export irq_handle_exit tracepoint, so that vendor modules can register probes for this tracepoint. Bug: 205928005 Change-Id: I8e1eaffb7dd2f257e9c09412aad54ecca62bf019 Signed-off-by: Changki Kim <changki.kim@samsung.com> Signed-off-by: Chanho Park <chanho61.park@samsung.com> (cherry picked from commit 13aee4adb2423f4a49203c944f278ac666408b09)	2024-10-17 17:40:38 +00:00
Matthias Maennich	b5aeebd6f1	Merge c903327d32 ("Merge tag 'printk-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux") into android-mainline ... Steps on the way to 6.12-rc1 Bug: 367265496 Change-Id: I0d94aa9be16f183bf187f91dc4916add32722775 Signed-off-by: Matthias Maennich <maennich@google.com>	2024-09-25 08:51:49 +00:00
Caleb Sander Mateos	e68ac2b488	softirq: Remove unused 'action' parameter from action callback ... When soft interrupt actions are called, they are passed a pointer to the struct softirq action which contains the action's function pointer. This pointer isn't useful, as the action callback already knows what function it is. And since each callback handles a specific soft interrupt, the callback also knows which soft interrupt number is running. No soft interrupt action callback actually uses this parameter, so remove it from the function pointer signature. This clarifies that soft interrupt actions are global routines and makes it slightly cheaper to call them. Signed-off-by: Caleb Sander Mateos <csander@purestorage.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Link: https://lore.kernel.org/all/20240815171549.3260003-1-csander@purestorage.com	2024-08-20 17:13:40 +02:00
Lee Jones	e5f5284138	Merge dd5a440a31 ("Linux 6.9-rc7") into android-mainline ... Steps on the way to v6.9 Signed-off-by: Lee Jones <joneslee@google.com> Change-Id: Ic30d50c6a23037418a483f38695b20bd4e9fa898	2024-05-22 08:29:16 +01:00
Zqiang	1dd1eff161	softirq: Fix suspicious RCU usage in __do_softirq() ... Currently, the condition "__this_cpu_read(ksoftirqd) == current" is used to invoke rcu_softirq_qs() in ksoftirqd tasks context for non-RT kernels. This works correctly as long as the context is actually task context but this condition is wrong when: - the current task is ksoftirqd - the task is interrupted in a RCU read side critical section - __do_softirq() is invoked on return from interrupt Syzkaller triggered the following scenario: -> finish_task_switch() -> put_task_struct_rcu_user() -> call_rcu(&task->rcu, delayed_put_task_struct) -> __kasan_record_aux_stack() -> pfn_valid() -> rcu_read_lock_sched() <interrupt> __irq_exit_rcu() -> __do_softirq)() -> if (!IS_ENABLED(CONFIG_PREEMPT_RT) && __this_cpu_read(ksoftirqd) == current) -> rcu_softirq_qs() -> RCU_LOCKDEP_WARN(lock_is_held(&rcu_sched_lock_map)) The rcu quiescent state is reported in the rcu-read critical section, so the lockdep warning is triggered. Fix this by splitting out the inner working of __do_softirq() into a helper function which takes an argument to distinguish between ksoftirqd task context and interrupted context and invoke it from the relevant call sites with the proper context information and use that for the conditional invocation of rcu_softirq_qs(). Reported-by: syzbot+dce04ed6d1438ad69656@syzkaller.appspotmail.com Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Zqiang <qiang.zhang1211@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240427102808.29356-1-qiang.zhang1211@gmail.com Link: https://lore.kernel.org/lkml/8f281a10-b85a-4586-9586-5bbc12dc784f@paulmck-laptop/T/#mea8aba4abfcb97bbf499d169ce7f30c4cff1b0e3	2024-04-29 05:03:51 +02:00
Lee Jones	0c32ba6b9c	Merge 045395d86a ("Merge tag 'cgroup-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup") into android-mainline ... Steps on the way to v6.9-rc1 Signed-off-by: Lee Jones <joneslee@google.com> Change-Id: Ifc4dd66f1bdfb0ebe9c026ac0303eda1b87207b5	2024-04-15 13:30:35 +01:00
Tejun Heo	1acd92d95f	workqueue: Drain BH work items on hot-unplugged CPUs ... Boqun pointed out that workqueues aren't handling BH work items on offlined CPUs. Unlike tasklet which transfers out the pending tasks from CPUHP_SOFTIRQ_DEAD, BH workqueue would just leave them pending which is problematic. Note that this behavior is specific to BH workqueues as the non-BH per-CPU workers just become unbound when the CPU goes offline. This patch fixes the issue by draining the pending BH work items from an offlined CPU from CPUHP_SOFTIRQ_DEAD. Because work items carry more context, it's not as easy to transfer the pending work items from one pool to another. Instead, run BH work items which execute the offlined pools on an online CPU. Note that this assumes that no further BH work items will be queued on the offlined CPUs. This assumption is shared with tasklet and should be fine for conversions. However, this issue also exists for per-CPU workqueues which will just keep executing work items queued after CPU offline on unbound workers and workqueue should reject per-CPU and BH work items queued on offline CPUs. This will be addressed separately later. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-and-reviewed-by: Boqun Feng <boqun.feng@gmail.com> Link: http://lkml.kernel.org/r/Zdvw0HdSXcU3JZ4g@boqun-archlinux	2024-02-29 11:51:24 -10:00
Tejun Heo	4cb1ef6460	workqueue: Implement BH workqueues to eventually replace tasklets ... The only generic interface to execute asynchronously in the BH context is tasklet; however, it's marked deprecated and has some design flaws such as the execution code accessing the tasklet item after the execution is complete which can lead to subtle use-after-free in certain usage scenarios and less-developed flush and cancel mechanisms. This patch implements BH workqueues which share the same semantics and features of regular workqueues but execute their work items in the softirq context. As there is always only one BH execution context per CPU, none of the concurrency management mechanisms applies and a BH workqueue can be thought of as a convenience wrapper around softirq. Except for the inability to sleep while executing and lack of max_active adjustments, BH workqueues and work items should behave the same as regular workqueues and work items. Currently, the execution is hooked to tasklet[_hi]. However, the goal is to convert all tasklet users over to BH workqueues. Once the conversion is complete, tasklet can be removed and BH workqueues can directly take over the tasklet softirqs. system_bh[_highpri]_wq are added. As queue-wide flushing doesn't exist in tasklet, all existing tasklet users should be able to use the system BH workqueues without creating their own workqueues. v3: - Add missing interrupt.h include. v2: - Instead of using tasklets, hook directly into its softirq action functions - tasklet[_hi]_action(). This is slightly cheaper and closer to the eventual code structure we want to arrive at. Suggested by Lai. - Lai also pointed out several places which need NULL worker->task handling or can use clarification. Updated. Signed-off-by: Tejun Heo <tj@kernel.org> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/CAHk-=wjDW53w4-YcSmgKC5RruiRLHmJ1sXeYdp_ZgVoBw=5byA@mail.gmail.com Tested-by: Allen Pais <allen.lkml@gmail.com> Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>	2024-02-04 11:28:06 -10:00
Greg Kroah-Hartman	af736aef72	Merge 3ca9a836ff ("Merge tag 'sched-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") into android-mainline ... Steps on the way to 6.6-rc1 New scheduler! Hooks are going to be wrong all over the place, devices will need to be tuned again, but this is a good thing to have happen. Resolves conflicts in: kernel/sched/fair.c Change-Id: Ic416cc02b492ad49f867b0387f1895310e27db43 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>	2023-10-05 14:37:11 +00:00
Greg Kroah-Hartman	542c7b44e3	Merge 0017387938 ("Merge tag 'irq-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip") into android-mainline ... Steps on the way to 6.5-rc1 Resolves merge conflicts in: drivers/irqchip/irq-gic-v3.c Change-Id: I05dc06377dbd6d1f50cc33224f89834b0e90e594 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>	2023-07-17 19:47:59 +00:00
Cruz Zhao	548796e2e7	sched/core: introduce sched_core_idle_cpu() ... As core scheduling introduced, a new state of idle is defined as force idle, running idle task but nr_running greater than zero. If a cpu is in force idle state, idle_cpu() will return zero. This result makes sense in some scenarios, e.g., load balance, showacpu when dumping, and judge the RCU boost kthread is starving. But this will cause error in other scenarios, e.g., tick_irq_exit(): When force idle, rq->curr == rq->idle but rq->nr_running > 0, results that idle_cpu() returns 0. In function tick_irq_exit(), if idle_cpu() is 0, tick_nohz_irq_exit() will not be called, and ts->idle_active will not become 1, which became 0 in tick_nohz_irq_enter(). ts->idle_sleeptime won't update in function update_ts_time_stats(), if ts->idle_active is 0, which should be 1. And this bug will result that ts->idle_sleeptime is less than the actual value, and finally will result that the idle time in /proc/stat is less than the actual value. To solve this problem, we introduce sched_core_idle_cpu(), which returns 1 when force idle. We audit all users of idle_cpu(), and change idle_cpu() into sched_core_idle_cpu() in function tick_irq_exit(). v2-->v3: Only replace idle_cpu() with sched_core_idle_cpu() in function tick_irq_exit(). And modify the corresponding commit log. Signed-off-by: Cruz Zhao <CruzZhao@linux.alibaba.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Reviewed-by: Joel Fernandes <joel@joelfernandes.org> Link: https://lore.kernel.org/r/1688011324-42406-1-git-send-email-CruzZhao@linux.alibaba.com	2023-07-13 15:21:50 +02:00
Greg Kroah-Hartman	1ef87dde39	Merge 3f614ab563 ("Merge tag 'irq-core-2023-04-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") into android-mainline ... Steps on the way to 6.4-rc1 Change-Id: I2d19c612013216fc49a9cf0bf94fb520ffa78963 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>	2023-05-16 17:03:54 +00:00
Paolo Abeni	d15121be74	Revert "softirq: Let ksoftirqd do its job" ... This reverts the following commits: 4cd13c21b2 ("softirq: Let ksoftirqd do its job") 3c53776e29 ("Mark HI and TASKLET softirq synchronous") 1342d8080f ("softirq: Don't skip softirq execution when softirq thread is parking") in a single change to avoid known bad intermediate states introduced by a patch series reverting them individually. Due to the mentioned commit, when the ksoftirqd threads take charge of softirq processing, the system can experience high latencies. In the past a few workarounds have been implemented for specific side-effects of the initial ksoftirqd enforcement commit: commit 1ff688209e ("watchdog: core: make sure the watchdog_worker is not deferred") commit 8d5755b3f7 ("watchdog: softdog: fire watchdog even if softirqs do not get to run") commit 217f697436 ("net: busy-poll: allow preemption in sk_busy_loop()") commit 3c53776e29 ("Mark HI and TASKLET softirq synchronous") But the latency problem still exists in real-life workloads, see the link below. The reverted commit intended to solve a live-lock scenario that can now be addressed with the NAPI threaded mode, introduced with commit 29863d41bb ("net: implement threaded-able napi poll loop support"), which is nowadays in a pretty stable status. While a complete solution to put softirq processing under nice resource control would be preferable, that has proven to be a very hard task. In the short term, remove the main pain point, and also simplify a bit the current softirq implementation. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Jason Xing <kerneljasonxing@gmail.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/netdev/305d7742212cbe98621b16be782b0562f1012cb6.camel@redhat.com Link: https://lore.kernel.org/r/57e66b364f1b6f09c9bc0316742c3b14f4ce83bd.1683526542.git.pabeni@redhat.com	2023-05-09 21:50:27 +02:00
Lingutla Chandrasekhar	f4bf3ca2e5	softirq: Add trace points for tasklet entry/exit ... Tasklets are supposed to finish their work quickly and should not block the current running process, but it is not guaranteed that they do so. Currently softirq_entry/exit can be used to analyse the total tasklets execution time, but that's not helpful to track individual tasklets execution time. That makes it hard to identify tasklet functions, which take more time than expected. Add tasklet_entry/exit trace point support to track individual tasklet execution. Trivial usage example: # echo 1 > /sys/kernel/debug/tracing/events/irq/tasklet_entry/enable # echo 1 > /sys/kernel/debug/tracing/events/irq/tasklet_exit/enable # cat /sys/kernel/debug/tracing/trace # tracer: nop # # entries-in-buffer/entries-written: 4/4 #P:4 # # _-----=> irqs-off/BH-disabled # / _----=> need-resched # | / _---=> hardirq/softirq # || / _--=> preempt-depth # ||| / _-=> migrate-disable # |||| / delay # TASK-PID CPU# ||||| TIMESTAMP FUNCTION # | | | ||||| | | <idle>-0 [003] ..s1. 314.011428: tasklet_entry: tasklet=0xffffa01ef8db2740 function=tcp_tasklet_func <idle>-0 [003] ..s1. 314.011432: tasklet_exit: tasklet=0xffffa01ef8db2740 function=tcp_tasklet_func <idle>-0 [003] ..s1. 314.017369: tasklet_entry: tasklet=0xffffa01ef8db2740 function=tcp_tasklet_func <idle>-0 [003] ..s1. 314.017371: tasklet_exit: tasklet=0xffffa01ef8db2740 function=tcp_tasklet_func Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org> Signed-off-by: J. Avila <elavila@google.com> Signed-off-by: John Stultz <jstultz@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20230407230526.1685443-1-jstultz@google.com [elavila: Port to android-mainline] [jstultz: Rebased to upstream, cut unused trace points, added comments for the tracepoints, reworded commit]	2023-04-15 10:17:16 +02:00
Greg Kroah-Hartman	f8940bd390	Merge aad26f55f4 ("Merge tag 'docs-6.0' of git://git.lwn.net/linux") into android-mainline ... Steps on the way to 6.0-rc1 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ib6cb8b70c4814157f916a62b8f4949f1607026c9	2022-08-12 14:22:30 +02:00
Frederic Weisbecker	6f0e6c1598	context_tracking: Take IRQ eqs entrypoints over RCU ... The RCU dynticks counter is going to be merged into the context tracking subsystem. Prepare with moving the IRQ extended quiescent states entrypoints to context tracking. For now those are dumb redirection to existing RCU calls. [ paulmck: Apply Stephen Rothwell feedback from -next. ] [ paulmck: Apply Nathan Chancellor feedback. ] Acked-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com> Cc: Uladzislau Rezki <uladzislau.rezki@sony.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Nicolas Saenz Julienne <nsaenz@kernel.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Xiongfeng Wang <wangxiongfeng2@huawei.com> Cc: Yu Liao <liaoyu15@huawei.com> Cc: Phil Auld <pauld@redhat.com> Cc: Paul Gortmaker<paul.gortmaker@windriver.com> Cc: Alex Belits <abelits@marvell.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Nicolas Saenz Julienne <nsaenzju@redhat.com> Tested-by: Nicolas Saenz Julienne <nsaenzju@redhat.com>	2022-07-05 13:32:59 -07:00
Greg Kroah-Hartman	6d6e7dba9f	Merge ac2ab99072 ("Merge tag 'random-5.19-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random") into android-mainline ... Steps on the way to 5.19-rc1 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ibd73f1e28739664ac390c1bba3d6e9b873a4a484	2022-06-06 19:32:09 +02:00
Sebastian Andrzej Siewior	1a90bfd220	smp: Make softirq handling RT safe in flush_smp_call_function_queue() ... flush_smp_call_function_queue() invokes do_softirq() which is not available on PREEMPT_RT. flush_smp_call_function_queue() is invoked from the idle task and the migration task with preemption or interrupts disabled. So RT kernels cannot process soft interrupts in that context as that has to acquire 'sleeping spinlocks' which is not possible with preemption or interrupts disabled and forbidden from the idle task anyway. The currently known SMP function call which raises a soft interrupt is in the block layer, but this functionality is not enabled on RT kernels due to latency and performance reasons. RT could wake up ksoftirqd unconditionally, but this wants to be avoided if there were soft interrupts pending already when this is invoked in the context of the migration task. The migration task might have preempted a threaded interrupt handler which raised a soft interrupt, but did not reach the local_bh_enable() to process it. The "running" ksoftirqd might prevent the handling in the interrupt thread context which is causing latency issues. Add a new function which handles this case explicitely for RT and falls back to do_softirq() on !RT kernels. In the RT case this warns when one of the flushed SMP function calls raised a soft interrupt so this can be investigated. [ tglx: Moved the RT part out of SMP code ] Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/YgKgL6aPj8aBES6G@linutronix.de Link: https://lore.kernel.org/r/20220413133024.356509586@linutronix.de	2022-05-01 10:03:43 +02:00
Greg Kroah-Hartman	1491988c65	Merge 93287e28bc ("Merge tag 'irq-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") into android-mainline ... Steps on the way to 5.18-rc1 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I511dc7eaf50678f48ed92d04e341bb48c664e1e2	2022-03-25 08:47:45 +01:00
Greg Kroah-Hartman	a8bd3167d2	Revert "ANDROID: sched: SoftIRQ related changes" ... There are too many merge conflicts in 5.18-rc1 to keep carrying this change for now. Revert it and if it is still needed, it can come back later. Hopefully AFTER it has been properly submitted upstream... Fixes: 027f8bd863 ("Revert "Revert "ANDROID: sched: avoid migrating when softint on tgt cpu should be short""") Cc: John Dias <joaodias@google.com> Cc: J. Avila <elavila@google.com> Cc: Ashay Jaiswal <ashayj@codeaurora.org> Cc: Shaleen Agrawal <shalagra@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I9d8eb204caa34d7676c3a9e0a63cad9af2579ce3	2022-03-25 08:44:31 +01:00
Changbin Du	fe13889c39	genirq, softirq: Use in_hardirq() instead of in_irq() ... Replace the obsolete and ambiguos macro in_irq() with the new macro in_hardirq(). Signed-off-by: Changbin Du <changbin.du@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20220128110727.5110-1-changbin.du@gmail.com	2022-02-02 21:34:19 +01:00
Greg Kroah-Hartman	67a2108c0b	Merge tag 'v5.16-rc4' into android-mainline ... Linux 5.16-rc4 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I2b4d55977a326a410a9d5ede92f66dc6c6a9e4d3	2021-12-06 09:57:22 +01:00
Frederic Weisbecker	53e87e3cdc	timers/nohz: Last resort update jiffies on nohz_full IRQ entry ... When at least one CPU runs in nohz_full mode, a dedicated timekeeper CPU is guaranteed to stay online and to never stop its tick. Meanwhile on some rare case, the dedicated timekeeper may be running with interrupts disabled for a while, such as in stop_machine. If jiffies stop being updated, a nohz_full CPU may end up endlessly programming the next tick in the past, taking the last jiffies update monotonic timestamp as a stale base, resulting in an tick storm. Here is a scenario where it matters: 0) CPU 0 is the timekeeper and CPU 1 a nohz_full CPU. 1) A stop machine callback is queued to execute somewhere. 2) CPU 0 reaches MULTI_STOP_DISABLE_IRQ while CPU 1 is still in MULTI_STOP_PREPARE. Hence CPU 0 can't do its timekeeping duty. CPU 1 can still take IRQs. 3) CPU 1 receives an IRQ which queues a timer callback one jiffy forward. 4) On IRQ exit, CPU 1 schedules the tick one jiffy forward, taking last_jiffies_update as a base. But last_jiffies_update hasn't been updated for 2 jiffies since the timekeeper has interrupts disabled. 5) clockevents_program_event(), which relies on ktime_get(), observes that the expiration is in the past and therefore programs the min delta event on the clock. 6) The tick fires immediately, goto 3) 7) Tick storm, the nohz_full CPU is drown and takes ages to reach MULTI_STOP_DISABLE_IRQ, which is the only way out of this situation. Solve this with unconditionally updating jiffies if the value is stale on nohz_full IRQ entry. IRQs and other disturbances are expected to be rare enough on nohz_full for the unconditional call to ktime_get() to actually matter. Reported-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Paul E. McKenney <paulmck@kernel.org> Link: https://lore.kernel.org/r/20211026141055.57358-2-frederic@kernel.org	2021-12-02 15:07:22 +01:00
Lingutla Chandrasekhar	07ecea7cb8	Revert "Revert "ANDROID: trace: Add trace points for tasklet entry/exit"" ... This reverts commit 2cadcbac1a, as the merge conflicts have been resolved. Bug: 168521633 Change-Id: Ib17f36be69a9112cc5ea2a5a2d940b82b480c8f0 Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org> [elavila: Port to mainline] Signed-off-by: J. Avila <elavila@google.com> Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>	2021-10-15 16:16:08 +00:00
Lingutla Chandrasekhar	0e25c12f4e	Revert "Revert "ANDROID: Revert "softirq: Let ksoftirqd do its job""" ... This reverts commit c646ea5a5f, as the merge conflicts have been resolved. Bug: 168521633 Change-Id: Ide895e808fd0786b6690334d62d250f73584508e Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org> [satyap@codeaurora.org: Fix trivial merge conflicts] Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org> [elavila: Port to mainline] Signed-off-by: J. Avila <elavila@google.com> Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>	2021-10-15 16:16:00 +00:00
Satya Durga Srinivasu Prabhala	bdfce9c8c5	Revert "Revert "ANDROID: Revert "Mark HI and TASKLET softirq synchronous""" ... This reverts commit d6592588ed, as the merge conflicts have been resolved. Bug: 168521633 Change-Id: Ic967977b4d409ea9103ff4ec5d4fa6709fa8146d Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org> [elavila: port to mainline, resolve conflicts, add commit text] Signed-off-by: J. Avila <elavila@google.com> [ashayj@codeaurora.org: resolve conflicts] Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org> Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>	2021-10-15 16:15:51 +00:00
Pavankumar Kondeti	f5b90ccf9c	Revert "Revert "ANDROID: softirq: defer softirq processing to ksoftirqd if CPU is busy with RT"" ... This reverts commit 28768780d4, as the merge conflicts have been resolved. Bug: 168521633 Change-Id: I9828d641e92e40a798e899b60aba83dbc59675bb Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> [satyap@codeaurora.org: trivial merge conflict resolution.] Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org> [elavila: Port to mainline, squash with bugfix] Signed-off-by: J. Avila <elavila@google.com> [ashayj@codeaurora.org: trivial merge conflict resolution.] Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org> Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>	2021-10-15 16:15:43 +00:00
John Dias	027f8bd863	Revert "Revert "ANDROID: sched: avoid migrating when softint on tgt cpu should be short"" ... This reverts commit 4196c1dafc, as the merge conflicts have been resolved. Bug: 31752786 Bug: 168521633 Change-Id: I6cb3fc698d567e03c67e2c4373ce75cc71cdfe9c Signed-off-by: John Dias <joaodias@google.com> [elavila: Amend commit text for AOSP, port to mainline] Signed-off-by: J. Avila <elavila@google.com> [ashayj@codeaurora.org: update usage of __IRQ_STAT and minor conflicts] Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org> Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>	2021-10-15 16:15:20 +00:00
Greg Kroah-Hartman	bddc58eb1a	Merge 7d6e3fa87e ("Merge tag 'irq-core-2021-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") into android-mainline ... Steps on the way to 5.15-rc1 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ied673de2a14ba5a2feede8ebb741c3a3657e1db5	2021-09-06 13:34:16 +02:00
Tanner Love	91cc470e79	genirq: Change force_irqthreads to a static key ... With CONFIG_IRQ_FORCED_THREADING=y, testing the boolean force_irqthreads could incur a cache line miss in invoke_softirq() and other places. Replace the test with a static key to avoid the potential cache miss. [ tglx: Dropped the IDE part, removed the export and updated blk-mq ] Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Tanner Love <tannerlove@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210602180338.3324213-1-tannerlove.kernel@gmail.com	2021-08-10 22:50:07 +02:00
Lee Jones	7889eed917	Merge 54a728dc5e ("Merge tag 'sched-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") into android-mainline ... A little step towards 5.14-rc1 Signed-off-by: Lee Jones <lee.jones@linaro.org> Change-Id: I2573a6df9f4e7b67194327ac6db6082a574d2809	2021-07-09 10:55:21 +01:00
Peter Zijlstra	b03fbd4ff2	sched: Introduce task_is_running() ... Replace a bunch of 'p->state == TASK_RUNNING' with a new helper: task_is_running(p). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Davidlohr Bueso <dave@stgolabs.net> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20210611082838.222401495@infradead.org	2021-06-18 11:43:07 +02:00
Peter Zijlstra	37aadc687a	sched: Unbreak wakeups ... Remove broken task->state references and let wake_up_process() DTRT. The anti-pattern in these patches breaks the ordering of ->state vs COND as described in the comment near set_current_state() and can lead to missed wakeups: (OoO load, observes RUNNING)<-. for (;;) { | t->state = UNINTERRUPTIBLE; | smp_mb(); ,-----> | (observes !COND) | / if (COND) ---------' | COND = 1; break; `- if (t->state != RUNNING) wake_up_process(t); // not done schedule(); // forever waiting } t->state = TASK_RUNNING; Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Davidlohr Bueso <dbueso@suse.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20210611082838.160855222@infradead.org	2021-06-18 11:43:06 +02:00
Lee Jones	4797acfb9c	Merge 16b3d0cf5b Merge tag 'sched-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into android-mainline ... A little step en route to v5.13-rc1 Signed-off-by: Lee Jones <lee.jones@linaro.org> Change-Id: Ic2fb8aa220023572c96907aebce0a675333ef29f	2021-05-10 10:28:52 +01:00
Lee Jones	7561514944	Merge commit e7c6e405e1 ("Fix misc new gcc warnings") into android-mainline ... Steps on the way to 5.13-rc1 Signed-off-by: Lee Jones <lee.jones@linaro.org> Change-Id: Iff6fb6b3991943905d20a8b40e2b2dd87c0d792b	2021-04-29 10:20:06 +01:00
Linus Torvalds	9a45da9270	Merge tag 'core-rcu-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ... Pull RCU updates from Ingo Molnar: - Support for "N" as alias for last bit in bitmap parsing library (eg using syntax like "nohz_full=2-N") - kvfree_rcu updates - mm_dump_obj() updates. (One of these is to mm, but was suggested by Andrew Morton.) - RCU callback offloading update - Polling RCU grace-period interfaces - Realtime-related RCU updates - Tasks-RCU updates - Torture-test updates - Torture-test scripting updates - Miscellaneous fixes * tag 'core-rcu-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits) rcutorture: Test start_poll_synchronize_rcu() and poll_state_synchronize_rcu() rcu: Provide polling interfaces for Tiny RCU grace periods torture: Fix kvm.sh --datestamp regex check torture: Consolidate qemu-cmd duration editing into kvm-transform.sh torture: Print proper vmlinux path for kvm-again.sh runs torture: Make TORTURE_TRUST_MAKE available in kvm-again.sh environment torture: Make kvm-transform.sh update jitter commands torture: Add --duration argument to kvm-again.sh torture: Add kvm-again.sh to rerun a previous torture-test torture: Create a "batches" file for build reuse torture: De-capitalize TORTURE_SUITE torture: Make upper-case-only no-dot no-slash scenario names official torture: Rename SRCU-t and SRCU-u to avoid lowercase characters torture: Remove no-mpstat error message torture: Record kvm-test-1-run.sh and kvm-test-1-run-qemu.sh PIDs torture: Record jitter start/stop commands torture: Extract kvm-test-1-run-qemu.sh from kvm-test-1-run.sh torture: Record TORTURE_KCONFIG_GDB_ARG in qemu-cmd torture: Abstract jitter.sh start/stop into scripts rcu: Provide polling interfaces for Tree RCU grace periods ...	2021-04-28 12:00:13 -07:00
Thomas Gleixner	47c218dcae	tick/sched: Prevent false positive softirq pending warnings on RT ... On RT a task which has soft interrupts disabled can block on a lock and schedule out to idle while soft interrupts are pending. This triggers the warning in the NOHZ idle code which complains about going idle with pending soft interrupts. But as the task is blocked soft interrupt processing is temporarily blocked as well which means that such a warning is a false positive. To prevent that check the per CPU state which indicates that a scheduled out task has soft interrupts disabled. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Tested-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210309085727.527563866@linutronix.de	2021-03-17 16:34:11 +01:00
Thomas Gleixner	8b1c04acad	softirq: Make softirq control and processing RT aware ... Provide a local lock based serialization for soft interrupts on RT which allows the local_bh_disabled() sections and servicing soft interrupts to be preemptible. Provide the necessary inline helpers which allow to reuse the bulk of the softirq processing code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Tested-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210309085727.426370483@linutronix.de	2021-03-17 16:34:10 +01:00
Thomas Gleixner	f02fc963e9	softirq: Move various protections into inline helpers ... To allow reuse of the bulk of softirq processing code for RT and to avoid #ifdeffery all over the place, split protections for various code sections out into inline helpers so the RT variant can just replace them in one go. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Tested-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210309085727.310118772@linutronix.de	2021-03-17 16:34:10 +01:00
Thomas Gleixner	eb2dafbba8	tasklets: Prevent tasklet_unlock_spin_wait() deadlock on RT ... tasklet_unlock_spin_wait() spin waits for the TASKLET_STATE_SCHED bit in the tasklet state to be cleared. This works on !RT nicely because the corresponding execution can only happen on a different CPU. On RT softirq processing is preemptible, therefore a task preempting the softirq processing thread can spin forever. Prevent this by invoking local_bh_disable()/enable() inside the loop. In case that the softirq processing thread was preempted by the current task, current will block on the local lock which yields the CPU to the preempted softirq processing thread. If the tasklet is processed on a different CPU then the local_bh_disable()/enable() pair is just a waste of processor cycles. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210309084241.988908275@linutronix.de	2021-03-17 16:33:57 +01:00
Peter Zijlstra	697d8c63c4	tasklets: Replace spin wait in tasklet_kill() ... tasklet_kill() spin waits for TASKLET_STATE_SCHED to be cleared invoking yield() from inside the loop. yield() is an ill defined mechanism and the result might still be wasting CPU cycles in a tight loop which is especially painful in a guest when the CPU running the tasklet is scheduled out. tasklet_kill() is used in teardown paths and not performance critical at all. Replace the spin wait with wait_var_event(). Signed-off-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210309084241.890532921@linutronix.de	2021-03-17 16:33:57 +01:00