lineage-22.1
27 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
|
ee4c9c95ff |
Merge 6.1.34 into android14-6.1-lts
Changes in 6.1.34
scsi: megaraid_sas: Add flexible array member for SGLs
net: sfp: fix state loss when updating state_hw_mask
spi: mt65xx: make sure operations completed before unloading
platform/surface: aggregator: Allow completion work-items to be executed in parallel
platform/surface: aggregator_tabletsw: Add support for book mode in KIP subsystem
spi: qup: Request DMA before enabling clocks
afs: Fix setting of mtime when creating a file/dir/symlink
wifi: mt76: mt7615: fix possible race in mt7615_mac_sta_poll
bpf, sockmap: Avoid potential NULL dereference in sk_psock_verdict_data_ready()
neighbour: fix unaligned access to pneigh_entry
net: dsa: lan9303: allow vid != 0 in port_fdb_{add|del} methods
net/ipv4: ping_group_range: allow GID from 2147483648 to 4294967294
bpf: Fix UAF in task local storage
bpf: Fix elem_size not being set for inner maps
net/ipv6: fix bool/int mismatch for skip_notify_on_dev_down
net/smc: Avoid to access invalid RMBs' MRs in SMCRv1 ADD LINK CONT
net: enetc: correct the statistics of rx bytes
net: enetc: correct rx_bytes statistics of XDP
net/sched: fq_pie: ensure reasonable TCA_FQ_PIE_QUANTUM values
drm/i915: Explain the magic numbers for AUX SYNC/precharge length
drm/i915: Use 18 fast wake AUX sync len
Bluetooth: hci_sync: add lock to protect HCI_UNREGISTER
Bluetooth: Fix l2cap_disconnect_req deadlock
Bluetooth: ISO: don't try to remove CIG if there are bound CIS left
Bluetooth: L2CAP: Add missing checks for invalid DCID
wifi: mac80211: use correct iftype HE cap
wifi: cfg80211: reject bad AP MLD address
wifi: mac80211: mlme: fix non-inheritence element
wifi: mac80211: don't translate beacon/presp addrs
qed/qede: Fix scheduling while atomic
wifi: cfg80211: fix locking in sched scan stop work
selftests/bpf: Verify optval=NULL case
selftests/bpf: Fix sockopt_sk selftest
netfilter: nft_bitwise: fix register tracking
netfilter: conntrack: fix NULL pointer dereference in nf_confirm_cthelper
netfilter: ipset: Add schedule point in call_ad().
netfilter: nf_tables: out-of-bound check in chain blob
ipv6: rpl: Fix Route of Death.
tcp: gso: really support BIG TCP
rfs: annotate lockless accesses to sk->sk_rxhash
rfs: annotate lockless accesses to RFS sock flow table
net: sched: add rcu annotations around qdisc->qdisc_sleeping
drm/i915/selftests: Stop using kthread_stop()
drm/i915/selftests: Add some missing error propagation
net: sched: move rtm_tca_policy declaration to include file
net: sched: act_police: fix sparse errors in tcf_police_dump()
net: sched: fix possible refcount leak in tc_chain_tmplt_add()
bpf: Add extra path pointer check to d_path helper
drm/amdgpu: fix Null pointer dereference error in amdgpu_device_recover_vram
lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release()
net: bcmgenet: Fix EEE implementation
bnxt_en: Don't issue AP reset during ethtool's reset operation
bnxt_en: Query default VLAN before VNIC setup on a VF
bnxt_en: Skip firmware fatal error recovery if chip is not accessible
bnxt_en: Prevent kernel panic when receiving unexpected PHC_UPDATE event
bnxt_en: Implement .set_port / .unset_port UDP tunnel callbacks
batman-adv: Broken sync while rescheduling delayed work
Input: xpad - delete a Razer DeathAdder mouse VID/PID entry
Input: psmouse - fix OOB access in Elantech protocol
Input: fix open count when closing inhibited device
ALSA: hda: Fix kctl->id initialization
ALSA: ymfpci: Fix kctl->id initialization
ALSA: gus: Fix kctl->id initialization
ALSA: cmipci: Fix kctl->id initialization
ALSA: hda/realtek: Add quirk for Clevo NS50AU
ALSA: ice1712,ice1724: fix the kcontrol->id initialization
ALSA: hda/realtek: Add a quirk for HP Slim Desktop S01
ALSA: hda/realtek: Add Lenovo P3 Tower platform
ALSA: hda/realtek: Add quirks for Asus ROG 2024 laptops using CS35L41
drm/i915/gt: Use the correct error value when kernel_context() fails
drm/amd/pm: conditionally disable pcie lane switching for some sienna_cichlid SKUs
drm/amdgpu: fix xclk freq on CHIP_STONEY
drm/amdgpu: change reserved vram info print
drm/amd/pm: Fix power context allocation in SMU13
drm/amd/display: Reduce sdp bw after urgent to 90%
wifi: iwlwifi: mvm: Fix -Warray-bounds bug in iwl_mvm_wait_d3_notif()
can: j1939: j1939_sk_send_loop_abort(): improved error queue handling in J1939 Socket
can: j1939: change j1939_netdev_lock type to mutex
can: j1939: avoid possible use-after-free when j1939_can_rx_register fails
mptcp: only send RM_ADDR in nl_cmd_remove
mptcp: add address into userspace pm list
mptcp: update userspace pm infos
selftests: mptcp: update userspace pm addr tests
selftests: mptcp: update userspace pm subflow tests
ceph: fix use-after-free bug for inodes when flushing capsnaps
s390/dasd: Use correct lock while counting channel queue length
Bluetooth: Fix use-after-free in hci_remove_ltk/hci_remove_irk
Bluetooth: fix debugfs registration
Bluetooth: hci_qca: fix debugfs registration
tee: amdtee: Add return_origin to 'struct tee_cmd_load_ta'
rbd: move RBD_OBJ_FLAG_COPYUP_ENABLED flag setting
rbd: get snapshot context after exclusive lock is ensured to be held
virtio_net: use control_buf for coalesce params
soc: qcom: icc-bwmon: fix incorrect error code passed to dev_err_probe()
pinctrl: meson-axg: add missing GPIOA_18 gpio group
usb: usbfs: Enforce page requirements for mmap
usb: usbfs: Use consistent mmap functions
mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM
mm: page_table_check: Ensure user pages are not slab pages
arm64: dts: qcom: sc8280xp: Flush RSC sleep & wake votes
ARM: at91: pm: fix imbalanced reference counter for ethernet devices
ARM: dts: at91: sama7g5ek: fix debounce delay property for shdwc
ASoC: codecs: wsa883x: do not set can_multi_write flag
ASoC: codecs: wsa881x: do not set can_multi_write flag
arm64: dts: qcom: sc7180-lite: Fix SDRAM freq for misidentified sc7180-lite boards
arm64: dts: imx8qm-mek: correct GPIOs for USDHC2 CD and WP signals
arm64: dts: imx8-ss-dma: assign default clock rate for lpuarts
ASoC: mediatek: mt8195-afe-pcm: Convert to platform remove callback returning void
ASoC: mediatek: mt8195: fix use-after-free in driver remove path
ASoC: simple-card-utils: fix PCM constraint error check
blk-mq: fix blk_mq_hw_ctx active request accounting
arm64: dts: imx8mn-beacon: Fix SPI CS pinmux
i2c: mv64xxx: Fix reading invalid status value in atomic mode
firmware: arm_ffa: Set handle field to zero in memory descriptor
gpio: sim: fix memory corruption when adding named lines and unnamed hogs
i2c: sprd: Delete i2c adapter in .remove's error path
riscv: mm: Ensure prot of VM_WRITE and VM_EXEC must be readable
eeprom: at24: also select REGMAP
soundwire: stream: Add missing clear of alloc_slave_rt
riscv: fix kprobe __user string arg print fault issue
vduse: avoid empty string for dev name
vhost: support PACKED when setting-getting vring_base
vhost_vdpa: support PACKED when setting-getting vring_base
ksmbd: fix out-of-bound read in deassemble_neg_contexts()
ksmbd: fix out-of-bound read in parse_lease_state()
ksmbd: check the validation of pdu_size in ksmbd_conn_handler_loop
Revert "ext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled"
ext4: only check dquot_initialize_needed() when debugging
wifi: rtw89: correct PS calculation for SUPPORTS_DYNAMIC_PS
wifi: rtw88: correct PS calculation for SUPPORTS_DYNAMIC_PS
Revert "staging: rtl8192e: Replace macro RTL_PCI_DEVICE with PCI_DEVICE"
Linux 6.1.34
Note, commit
|
||
Ruihan Li
|
08378f0314 |
mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM
commit 81a31a860bb61d54eb688af2568d9332ed9b8942 upstream. Without EXCLUSIVE_SYSTEM_RAM, users are allowed to map arbitrary physical memory regions into the userspace via /dev/mem. At the same time, pages may change their properties (e.g., from anonymous pages to named pages) while they are still being mapped in the userspace, leading to "corruption" detected by the page table check. To avoid these false positives, this patch makes PAGE_TABLE_CHECK depends on EXCLUSIVE_SYSTEM_RAM. This dependency is understandable because PAGE_TABLE_CHECK is a hardening technique but /dev/mem without STRICT_DEVMEM (i.e., !EXCLUSIVE_SYSTEM_RAM) is itself a security problem. Even with EXCLUSIVE_SYSTEM_RAM, I/O pages may be still allowed to be mapped via /dev/mem. However, these pages are always considered as named pages, so they won't break the logic used in the page table check. Cc: <stable@vger.kernel.org> # 5.17 Signed-off-by: Ruihan Li <lrh2000@pku.edu.cn> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Pasha Tatashin <pasha.tatashin@soleen.com> Link: https://lore.kernel.org/r/20230515130958.32471-4-lrh2000@pku.edu.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Suren Baghdasaryan
|
71c7092b68 |
ANDROID: Revert "mm: remove cleancache"
This reverts commit
|
||
|
Greg Kroah-Hartman
|
0fff48d6fe |
Merge 6.1.24 into android14-6.1
Changes in 6.1.24
dm cache: Add some documentation to dm-cache-background-tracker.h
dm integrity: Remove bi_sector that's only used by commented debug code
dm: change "unsigned" to "unsigned int"
dm: fix improper splitting for abnormal bios
KVM: arm64: PMU: Align chained counter implementation with architecture pseudocode
KVM: arm64: PMU: Distinguish between 64bit counter and 64bit overflow
KVM: arm64: PMU: Sanitise PMCR_EL0.LP on first vcpu run
KVM: arm64: PMU: Don't save PMCR_EL0.{C,P} for the vCPU
gpio: GPIO_REGMAP: select REGMAP instead of depending on it
Drivers: vmbus: Check for channel allocation before looking up relids
ASoC: SOF: ipc4: Ensure DSP is in D0I0 during sof_ipc4_set_get_data()
pwm: Make .get_state() callback return an error code
pwm: hibvt: Explicitly set .polarity in .get_state()
pwm: cros-ec: Explicitly set .polarity in .get_state()
pwm: iqs620a: Explicitly set .polarity in .get_state()
pwm: sprd: Explicitly set .polarity in .get_state()
pwm: meson: Explicitly set .polarity in .get_state()
ASoC: codecs: lpass: fix the order or clks turn off during suspend
KVM: s390: pv: fix external interruption loop not always detected
wifi: mac80211: fix the size calculation of ieee80211_ie_len_eht_cap()
wifi: mac80211: fix invalid drv_sta_pre_rcu_remove calls for non-uploaded sta
net: qrtr: Fix a refcount bug in qrtr_recvmsg()
net: phylink: add phylink_expects_phy() method
net: stmmac: check if MAC needs to attach to a PHY
net: stmmac: remove redundant fixup to support fixed-link mode
l2tp: generate correct module alias strings
wifi: brcmfmac: Fix SDIO suspend/resume regression
NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL
nfsd: call op_release, even when op_func returns an error
icmp: guard against too small mtu
ALSA: hda/hdmi: Preserve the previous PCM device upon re-enablement
net: don't let netpoll invoke NAPI if in xmit context
net: dsa: mv88e6xxx: Reset mv88e6393x force WD event bit
sctp: check send stream number after wait_for_sndbuf
net: qrtr: Do not do DEL_SERVER broadcast after DEL_CLIENT
ipv6: Fix an uninit variable access bug in __ip6_make_skb()
platform/x86: think-lmi: Fix memory leak when showing current settings
platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings
platform/x86: think-lmi: Clean up display of current_value on Thinkstation
gpio: davinci: Do not clear the bank intr enable bit in save_context
gpio: davinci: Add irq chip flag to skip set wake
net: ethernet: ti: am65-cpsw: Fix mdio cleanup in probe
net: stmmac: fix up RX flow hash indirection table when setting channels
sunrpc: only free unix grouplist after RCU settles
NFSD: callback request does not use correct credential for AUTH_SYS
ice: fix wrong fallback logic for FDIR
ice: Reset FDIR counter in FDIR init stage
raw: use net_hash_mix() in hash function
raw: Fix NULL deref in raw_get_next().
ping: Fix potentail NULL deref for /proc/net/icmp.
ethtool: reset #lanes when lanes is omitted
netlink: annotate lockless accesses to nlk->max_recvmsg_len
gve: Secure enough bytes in the first TX desc for all TCP pkts
arm64: compat: Work around uninitialized variable warning
net: stmmac: check fwnode for phy device before scanning for phy
cxl/pci: Fix CDAT retrieval on big endian
cxl/pci: Handle truncated CDAT header
cxl/pci: Handle truncated CDAT entries
cxl/pci: Handle excessive CDAT length
PCI/DOE: Silence WARN splat with CONFIG_DEBUG_OBJECTS=y
PCI/DOE: Fix memory leak with CONFIG_DEBUG_OBJECTS=y
usb: xhci: tegra: fix sleep in atomic call
xhci: Free the command allocated for setting LPM if we return early
xhci: also avoid the XHCI_ZERO_64B_REGS quirk with a passthrough iommu
usb: cdnsp: Fixes error: uninitialized symbol 'len'
usb: dwc3: pci: add support for the Intel Meteor Lake-S
USB: serial: cp210x: add Silicon Labs IFS-USB-DATACABLE IDs
usb: typec: altmodes/displayport: Fix configure initial pin assignment
USB: serial: option: add Telit FE990 compositions
USB: serial: option: add Quectel RM500U-CN modem
drivers: iio: adc: ltc2497: fix LSB shift
iio: adis16480: select CONFIG_CRC32
iio: adc: qcom-spmi-adc5: Fix the channel name
iio: adc: ti-ads7950: Set `can_sleep` flag for GPIO chip
iio: dac: cio-dac: Fix max DAC write value check for 12-bit
iio: buffer: correctly return bytes written in output buffers
iio: buffer: make sure O_NONBLOCK is respected
iio: light: cm32181: Unregister second I2C client if present
tty: serial: sh-sci: Fix transmit end interrupt handler
tty: serial: sh-sci: Fix Rx on RZ/G2L SCI
tty: serial: fsl_lpuart: avoid checking for transfer complete when UARTCTRL_SBK is asserted in lpuart32_tx_empty
nilfs2: fix potential UAF of struct nilfs_sc_info in nilfs_segctor_thread()
nilfs2: fix sysfs interface lifetime
dt-bindings: serial: renesas,scif: Fix 4th IRQ for 4-IRQ SCIFs
serial: 8250: Prevent starting up DMA Rx on THRI interrupt
ksmbd: do not call kvmalloc() with __GFP_NORETRY | __GFP_NO_WARN
ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr
ALSA: hda/realtek: Add quirk for Clevo X370SNW
ALSA: hda/realtek: fix mute/micmute LEDs for a HP ProBook
x86/acpi/boot: Correct acpi_is_processor_usable() check
x86/ACPI/boot: Use FADT version to check support for online capable
KVM: x86: Clear "has_error_code", not "error_code", for RM exception injection
KVM: nVMX: Do not report error code when synthesizing VM-Exit from Real Mode
mm: kfence: fix PG_slab and memcg_data clearing
mm: kfence: fix handling discontiguous page
coresight: etm4x: Do not access TRCIDR1 for identification
coresight-etm4: Fix for() loop drvdata->nr_addr_cmp range bug
counter: 104-quad-8: Fix race condition between FLAG and CNTR reads
counter: 104-quad-8: Fix Synapse action reported for Index signals
blk-mq: directly poll requests
iio: adc: ad7791: fix IRQ flags
io_uring: fix return value when removing provided buffers
io_uring: fix memory leak when removing provided buffers
scsi: qla2xxx: Fix memory leak in qla2x00_probe_one()
scsi: iscsi_tcp: Check that sock is valid before iscsi_set_param()
nvme: fix discard support without oncs
cifs: sanitize paths in cifs_update_super_prepath.
block: ublk: make sure that block size is set correctly
block: don't set GD_NEED_PART_SCAN if scan partition failed
perf/core: Fix the same task check in perf_event_set_output
ftrace: Mark get_lock_parent_ip() __always_inline
ftrace: Fix issue that 'direct->addr' not restored in modify_ftrace_direct()
fs: drop peer group ids under namespace lock
can: j1939: j1939_tp_tx_dat_new(): fix out-of-bounds memory access
can: isotp: fix race between isotp_sendsmg() and isotp_release()
can: isotp: isotp_ops: fix poll() to not report false EPOLLOUT events
can: isotp: isotp_recvmsg(): use sock_recv_cmsgs() to get SOCK_RXQ_OVFL infos
ACPI: video: Add auto_detect arg to __acpi_video_get_backlight_type()
ACPI: video: Make acpi_backlight=video work independent from GPU driver
ACPI: video: Add acpi_backlight=video quirk for Apple iMac14,1 and iMac14,2
ACPI: video: Add acpi_backlight=video quirk for Lenovo ThinkPad W530
net: stmmac: Add queue reset into stmmac_xdp_open() function
tracing/synthetic: Fix races on freeing last_cmd
tracing/timerlat: Notify new max thread latency
tracing/osnoise: Fix notify new tracing_max_latency
tracing: Free error logs of tracing instances
ASoC: hdac_hdmi: use set_stream() instead of set_tdm_slots()
tracing/synthetic: Make lastcmd_mutex static
zsmalloc: document freeable stats
mm: vmalloc: avoid warn_alloc noise caused by fatal signal
wifi: mt76: ignore key disable commands
ublk: read any SQE values upfront
drm/panfrost: Fix the panfrost_mmu_map_fault_addr() error path
drm/nouveau/disp: Support more modes by checking with lower bpc
drm/i915: Fix context runtime accounting
drm/i915: fix race condition UAF in i915_perf_add_config_ioctl
ring-buffer: Fix race while reader and writer are on the same page
mm/swap: fix swap_info_struct race between swapoff and get_swap_pages()
mm/hugetlb: fix uffd wr-protection for CoW optimization path
maple_tree: fix get wrong data_end in mtree_lookup_walk()
maple_tree: fix a potential concurrency bug in RCU mode
blk-throttle: Fix that bps of child could exceed bps limited in parent
drm/amd/display: Clear MST topology if it fails to resume
drm/amdgpu: for S0ix, skip SDMA 5.x+ suspend/resume
drm/amdgpu: skip psp suspend for IMU enabled ASICs mode2 reset
drm/display/dp_mst: Handle old/new payload states in drm_dp_remove_payload()
drm/i915/dp_mst: Fix payload removal during output disabling
drm/bridge: lt9611: Fix PLL being unable to lock
drm/i915: Use _MMIO_PIPE() for SKL_BOTTOM_COLOR
drm/i915: Split icl_color_commit_noarm() from skl_color_commit_noarm()
mm: take a page reference when removing device exclusive entries
maple_tree: remove GFP_ZERO from kmem_cache_alloc() and kmem_cache_alloc_bulk()
maple_tree: fix potential rcu issue
maple_tree: reduce user error potential
maple_tree: fix handle of invalidated state in mas_wr_store_setup()
maple_tree: fix mas_prev() and mas_find() state handling
maple_tree: be more cautious about dead nodes
maple_tree: refine ma_state init from mas_start()
maple_tree: detect dead nodes in mas_start()
maple_tree: fix freeing of nodes in rcu mode
maple_tree: remove extra smp_wmb() from mas_dead_leaves()
maple_tree: add smp_rmb() to dead node detection
maple_tree: add RCU lock checking to rcu callback functions
mm: enable maple tree RCU mode by default.
bpftool: Print newline before '}' for struct with padding only fields
Linux 6.1.24
Change-Id: I475408e1166927565c7788e7095bdf2cb236c4b2
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
|
||
Sergey Senozhatsky
|
0d33aa4351 |
zsmalloc: document freeable stats
commit 618a8a917dbf5830e2064d2fa0568940eb5d2584 upstream.
When freeable class stat was added to classes file (back in 2016) we
forgot to update zsmalloc documentation. Fix that.
Link: https://lkml.kernel.org/r/20230325024631.2817153-3-senozhatsky@chromium.org
Fixes:
|
||
T.J. Alumbaugh
|
e1cf082319 |
UPSTREAM: mm: multi-gen LRU: section for memcg LRU
Move memcg LRU code into a dedicated section. Improve the design doc to outline its architecture. Link: https://lkml.kernel.org/r/20230118001827.1040870-5-talumbau@google.com Change-Id: Id252e420cff7a858acb098cf2b3642da5c40f602 Signed-off-by: T.J. Alumbaugh <talumbau@google.com> Cc: Yu Zhao <yuzhao@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> (cherry picked from commit 36c7b4db7c942ae9e1b111f0c6b468c8b2e33842) Bug: 274865848 Signed-off-by: T.J. Mercier <tjmercier@google.com> |
||
|
T.J. Alumbaugh
|
282363eb6f |
UPSTREAM: mm: multi-gen LRU: section for Bloom filters
Move Bloom filters code into a dedicated section. Improve the design doc to explain Bloom filter usage and connection between aging and eviction in their use. Link: https://lkml.kernel.org/r/20230118001827.1040870-4-talumbau@google.com Change-Id: I73e866f687c1ed9f5c8538086aa39408b79897db Signed-off-by: T.J. Alumbaugh <talumbau@google.com> Cc: Yu Zhao <yuzhao@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> (cherry picked from commit ccbbbb85945d8f0255aa9dbc1b617017e2294f2c) Bug: 274865848 Signed-off-by: T.J. Mercier <tjmercier@google.com> |
||
|
T.J. Alumbaugh
|
4d8cf6f6f0 |
UPSTREAM: mm: multi-gen LRU: section for rmap/PT walk feedback
Add a section for lru_gen_look_around() in the code and the design doc. Link: https://lkml.kernel.org/r/20230118001827.1040870-3-talumbau@google.com Change-Id: I5097af63f61b3b69ec2abee6cdbdc33c296df213 Signed-off-by: T.J. Alumbaugh <talumbau@google.com> Cc: Yu Zhao <yuzhao@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> (cherry picked from commit db19a43d9b3a8876552f00f656008206ef9a5efa) Bug: 274865848 Signed-off-by: T.J. Mercier <tjmercier@google.com> |
||
|
T.J. Alumbaugh
|
014c372cc3 |
UPSTREAM: mm: multi-gen LRU: section for working set protection
Patch series "mm: multi-gen LRU: improve". This patch series improves a few MGLRU functions, collects related functions, and adds additional documentation. This patch (of 7): Add a section for working set protection in the code and the design doc. The admin doc already contains its usage. Link: https://lkml.kernel.org/r/20230118001827.1040870-1-talumbau@google.com Link: https://lkml.kernel.org/r/20230118001827.1040870-2-talumbau@google.com Change-Id: I65599075fd42951db7739a2ab7cee78516e157b3 Signed-off-by: T.J. Alumbaugh <talumbau@google.com> Cc: Yu Zhao <yuzhao@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> (cherry picked from commit 7b8144e63d84716f16a1b929e0c7e03ae5c4d5c1) Bug: 274865848 Signed-off-by: T.J. Mercier <tjmercier@google.com> |
||
Yu Zhao
|
0f410148ae |
UPSTREAM: mm: multi-gen LRU: rename lrugen->lists[] to lrugen->folios[]
lru_gen_folio will be chained into per-node lists by the coming lrugen->list. Link: https://lkml.kernel.org/r/20221222041905.2431096-3-yuzhao@google.com Signed-off-by: Yu Zhao <yuzhao@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Michael Larabel <Michael@MichaelLarabel.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Bug: 274865848 (cherry picked from commit 6df1b2212950aae2b2188c6645ea18e2a9e3fdd5) Change-Id: I09f53e0fb2cd6b8b3adbb8a80b15dc5efbeae857 Signed-off-by: T.J. Mercier <tjmercier@google.com> |
||
Linus Torvalds
|
f2b220ef93 |
A handful of relatively simple documentation fixes, plus a set of patches
catching the Chinese translation up with the front-page rework. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmNIPyAPHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5Y6UMH/2ZLziHH0jQkoBAIhxyUzU3ZfXLlq5Xqo6vS oBYfJlYLClY/dmfTc3HAI6UhhJLGTcTNDaC1H4YQdgeP6RVJruFThOYF9WgW0FFl SgsBKhTbi3dpfdzjID8bJM7ytkbIvV4voNh52J9L1TA3z/CPxKSiXCScFAH/o12t E+CMjtmgi2P8w3kqgX59FMavp3W8M8HsT6u/wVoKb+zXjjqXGFYEXTjjKUxufRf6 QWkaQGb0PHq9+2hAhgF4vdy4tWB9lr7r2ENZ8YKUkYUYfv5KGAqt39J7A4rC+g7w 4Rvzznd0BJv3nuZ4rdxom7cOJ77i3lmWSJ65FoDHNeQ/8VBNuZc= =UpLC -----END PGP SIGNATURE----- Merge tag 'docs-6.1-2' of git://git.lwn.net/linux Pull documentation fixes from Jonathan Corbet: "A handful of relatively simple documentation fixes, plus a set of patches catching the Chinese translation up with the front-page rework" * tag 'docs-6.1-2' of git://git.lwn.net/linux: Documentation: rtla: Correct command line example docs/zh_CN: add a man-pages link to zh_CN/index.rst docs/zh_CN: Rewrite the Chinese translation front page docs/zh_CN: add zh_CN/arch.rst docs/zh_CN: promote the title of zh_CN/process/index.rst docs/zh_CN: Update the translation of page_owner to 6.0-rc7 docs/zh_CN: Update the translation of ksm to 6.0-rc7 docs/howto: Replace abundoned URL of gmane.org Documentation: ubifs: Fix compression idiom Documentation/mm/page_owner.rst: delete frequently changing experimental data docs/zh_CN: Fix build warning docs: ftrace: Correct access mode |
||
|
Linus Torvalds
|
27bc50fc90 |
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
linux-next for a couple of months without, to my knowledge, any negative reports (or any positive ones, come to that). - Also the Maple Tree from Liam R. Howlett. An overlapping range-based tree for vmas. It it apparently slight more efficient in its own right, but is mainly targeted at enabling work to reduce mmap_lock contention. Liam has identified a number of other tree users in the kernel which could be beneficially onverted to mapletrees. Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat (https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com). This has yet to be addressed due to Liam's unfortunately timed vacation. He is now back and we'll get this fixed up. - Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses clang-generated instrumentation to detect used-unintialized bugs down to the single bit level. KMSAN keeps finding bugs. New ones, as well as the legacy ones. - Yang Shi adds a userspace mechanism (madvise) to induce a collapse of memory into THPs. - Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to support file/shmem-backed pages. - userfaultfd updates from Axel Rasmussen - zsmalloc cleanups from Alexey Romanov - cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and memory-failure - Huang Ying adds enhancements to NUMA balancing memory tiering mode's page promotion, with a new way of detecting hot pages. - memcg updates from Shakeel Butt: charging optimizations and reduced memory consumption. - memcg cleanups from Kairui Song. - memcg fixes and cleanups from Johannes Weiner. - Vishal Moola provides more folio conversions - Zhang Yi removed ll_rw_block() :( - migration enhancements from Peter Xu - migration error-path bugfixes from Huang Ying - Aneesh Kumar added ability for a device driver to alter the memory tiering promotion paths. For optimizations by PMEM drivers, DRM drivers, etc. - vma merging improvements from Jakub Matěn. - NUMA hinting cleanups from David Hildenbrand. - xu xin added aditional userspace visibility into KSM merging activity. - THP & KSM code consolidation from Qi Zheng. - more folio work from Matthew Wilcox. - KASAN updates from Andrey Konovalov. - DAMON cleanups from Kaixu Xia. - DAMON work from SeongJae Park: fixes, cleanups. - hugetlb sysfs cleanups from Muchun Song. - Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY0HaPgAKCRDdBJ7gKXxA joPjAQDZ5LlRCMWZ1oxLP2NOTp6nm63q9PWcGnmY50FjD/dNlwEAnx7OejCLWGWf bbTuk6U2+TKgJa4X7+pbbejeoqnt5QU= =xfWx -----END PGP SIGNATURE----- Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in linux-next for a couple of months without, to my knowledge, any negative reports (or any positive ones, come to that). - Also the Maple Tree from Liam Howlett. An overlapping range-based tree for vmas. It it apparently slightly more efficient in its own right, but is mainly targeted at enabling work to reduce mmap_lock contention. Liam has identified a number of other tree users in the kernel which could be beneficially onverted to mapletrees. Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat at [1]. This has yet to be addressed due to Liam's unfortunately timed vacation. He is now back and we'll get this fixed up. - Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses clang-generated instrumentation to detect used-unintialized bugs down to the single bit level. KMSAN keeps finding bugs. New ones, as well as the legacy ones. - Yang Shi adds a userspace mechanism (madvise) to induce a collapse of memory into THPs. - Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to support file/shmem-backed pages. - userfaultfd updates from Axel Rasmussen - zsmalloc cleanups from Alexey Romanov - cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and memory-failure - Huang Ying adds enhancements to NUMA balancing memory tiering mode's page promotion, with a new way of detecting hot pages. - memcg updates from Shakeel Butt: charging optimizations and reduced memory consumption. - memcg cleanups from Kairui Song. - memcg fixes and cleanups from Johannes Weiner. - Vishal Moola provides more folio conversions - Zhang Yi removed ll_rw_block() :( - migration enhancements from Peter Xu - migration error-path bugfixes from Huang Ying - Aneesh Kumar added ability for a device driver to alter the memory tiering promotion paths. For optimizations by PMEM drivers, DRM drivers, etc. - vma merging improvements from Jakub Matěn. - NUMA hinting cleanups from David Hildenbrand. - xu xin added aditional userspace visibility into KSM merging activity. - THP & KSM code consolidation from Qi Zheng. - more folio work from Matthew Wilcox. - KASAN updates from Andrey Konovalov. - DAMON cleanups from Kaixu Xia. - DAMON work from SeongJae Park: fixes, cleanups. - hugetlb sysfs cleanups from Muchun Song. - Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core. Link: https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com [1] * tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (555 commits) hugetlb: allocate vma lock for all sharable vmas hugetlb: take hugetlb vma_lock when clearing vma_lock->vma pointer hugetlb: fix vma lock handling during split vma and range unmapping mglru: mm/vmscan.c: fix imprecise comments mm/mglru: don't sync disk for each aging cycle mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol mm: memcontrol: use do_memsw_account() in a few more places mm: memcontrol: deprecate swapaccounting=0 mode mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled mm/secretmem: remove reduntant return value mm/hugetlb: add available_huge_pages() func mm: remove unused inline functions from include/linux/mm_inline.h selftests/vm: add selftest for MADV_COLLAPSE of uffd-minor memory selftests/vm: add file/shmem MADV_COLLAPSE selftest for cleared pmd selftests/vm: add thp collapse shmem testing selftests/vm: add thp collapse file and tmpfs testing selftests/vm: modularize thp collapse memory operations selftests/vm: dedup THP helpers mm/khugepaged: add tracepoint to hpage_collapse_scan_file() mm/madvise: add file and shmem support to MADV_COLLAPSE ... |
||
Yixuan Cao
|
0719fdba54 |
Documentation/mm/page_owner.rst: delete frequently changing experimental data
The kernel size changes due to many factors, such as compiler version, configuration, and the build environment. This makes size comparison figures irrelevant to reader's setup. Remove these figures and describe the effects of page owner to the kernel size in general instead. Thanks for Jonathan Corbet, Bagas Sanjaya and Mike Rapoport's constructive suggestions. Signed-off-by: Yixuan Cao <caoyixuan2019@email.szu.edu.cn> Link: https://lore.kernel.org/r/20221005145525.10359-1-caoyixuan2019@email.szu.edu.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
||
|
Linus Torvalds
|
52abb27abf |
slab fixes for 6.1-rc1
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEjUuTAak14xi+SF7M4CHKc/GJqRAFAmM6/BMACgkQ4CHKc/GJ
qRBqBAgAh+5JdVkYBxW4MvGEolRw0RDIBNwEwmyJI7WeAegL8FaGI3jmA5Kcww4c
yA+lL/jcS9zQ/qwwHHoCqZoCLDFa43oiDMjSW4MI6oZpV+T6lx5uaH5kXBKsmxy5
2dONP7kYG/eFfBGB6F9qQOLJnCz0CXeY7+O99D1Nldx0yKKUVCK0krb018p5oI6a
RTVRASSVuEGkxvJGo4BbIR1H40s1BKTyRO9eZCKEHSanYM5SVXdBy9GTh5VQWTPk
WLwvXmd0DehZzlPrgg3PMVPBTNGO/yplWibugWyzUqGcPIhQPk6Z76aWE4vojI2q
f0w+86BYR2U7SBV2ZaNrGrxk/PZJyg==
=aDgU
-----END PGP SIGNATURE-----
Merge tag 'slab-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fixes from Vlastimil Babka:
- The "common kmalloc v4" series [1] by Hyeonggon Yoo.
While the plan after LPC is to try again if it's possible to get rid
of SLOB and SLAB (and if any critical aspect of those is not possible
to achieve with SLUB today, modify it accordingly), it will take a
while even in case there are no objections.
Meanwhile this is a nice cleanup and some parts (e.g. to the
tracepoints) will be useful even if we end up with a single slab
implementation in the future:
- Improves the mm/slab_common.c wrappers to allow deleting
duplicated code between SLAB and SLUB.
- Large kmalloc() allocations in SLAB are passed to page allocator
like in SLUB, reducing number of kmalloc caches.
- Removes the {kmem_cache_alloc,kmalloc}_node variants of
tracepoints, node id parameter added to non-_node variants.
- Addition of kmalloc_size_roundup()
The first two patches from a series by Kees Cook [2] that introduce
kmalloc_size_roundup(). This will allow merging of per-subsystem
patches using the new function and ultimately stop (ab)using ksize()
in a way that causes ongoing trouble for debugging functionality and
static checkers.
- Wasted kmalloc() memory tracking in debugfs alloc_traces
A patch from Feng Tang that enhances the existing debugfs
alloc_traces file for kmalloc caches with information about how much
space is wasted by allocations that needs less space than the
particular kmalloc cache provides.
- My series [3] to fix validation races for caches with enabled
debugging:
- By decoupling the debug cache operation more from non-debug
fastpaths, extra locking simplifications were possible and thus
done afterwards.
- Additional cleanup of PREEMPT_RT specific code on top, by Thomas
Gleixner.
- A late fix for slab page leaks caused by the series, by Feng
Tang.
- Smaller fixes and cleanups:
- Unneeded variable removals, by ye xingchen
- A cleanup removing a BUG_ON() in create_unique_id(), by Chao Yu
Link: https://lore.kernel.org/all/20220817101826.236819-1-42.hyeyoo@gmail.com/ [1]
Link: https://lore.kernel.org/all/20220923202822.2667581-1-keescook@chromium.org/ [2]
Link: https://lore.kernel.org/all/20220823170400.26546-1-vbabka@suse.cz/ [3]
* tag 'slab-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (30 commits)
mm/slub: fix a slab missed to be freed problem
slab: Introduce kmalloc_size_roundup()
slab: Remove __malloc attribute from realloc functions
mm/slub: clean up create_unique_id()
mm/slub: enable debugging memory wasting of kmalloc
slub: Make PREEMPT_RT support less convoluted
mm/slub: simplify __cmpxchg_double_slab() and slab_[un]lock()
mm/slub: convert object_map_lock to non-raw spinlock
mm/slub: remove slab_lock() usage for debug operations
mm/slub: restrict sysfs validation to debug caches and make it safe
mm/sl[au]b: check if large object is valid in __ksize()
mm/slab_common: move declaration of __ksize() to mm/slab.h
mm/slab_common: drop kmem_alloc & avoid dereferencing fields when not using
mm/slab_common: unify NUMA and UMA version of tracepoints
mm/sl[au]b: cleanup kmem_cache_alloc[_node]_trace()
mm/sl[au]b: generalize kmalloc subsystem
mm/slub: move free_debug_processing() further
mm/sl[au]b: introduce common alloc/free functions without tracepoint
mm/slab: kmalloc: pass requests larger than order-1 page to page allocator
mm/slab_common: cleanup kmalloc_large()
...
|
||
Qi Zheng
|
21fbd59136 |
ksm: add the ksm prefix to the names of the ksm private structures
In order to prevent the name of the private structure of ksm from being the same as the name of the common structure used in subsequent patches, prefix their names with ksm in advance. Link: https://lkml.kernel.org/r/20220831031951.43152-5-zhengqi.arch@bytedance.com Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Vernon Yang
|
9a7d7a80e1 |
Documentation/mm: modify page_referenced to folio_referenced
Since commit
|
||
|
Yu Zhao
|
8be976a093 |
mm: multi-gen LRU: design doc
Add a design doc. Link: https://lkml.kernel.org/r/20220918080010.2920238-15-yuzhao@google.com Signed-off-by: Yu Zhao <yuzhao@google.com> Acked-by: Brian Geffon <bgeffon@google.com> Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org> Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name> Acked-by: Steven Barrett <steven@liquorix.net> Acked-by: Suleiman Souhlal <suleiman@google.com> Tested-by: Daniel Byrne <djbyrne@mtu.edu> Tested-by: Donald Carr <d@chaos-reins.com> Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com> Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru> Tested-by: Shuang Zhai <szhai2@cs.rochester.edu> Tested-by: Sofia Trinh <sofia.trinh@edi.works> Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Barry Song <baohua@kernel.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Hillf Danton <hdanton@sina.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Michael Larabel <Michael@MichaelLarabel.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Qi Zheng <zhengqi.arch@bytedance.com> Cc: Tejun Heo <tj@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Feng Tang
|
6edf2576a6 |
mm/slub: enable debugging memory wasting of kmalloc
kmalloc's API family is critical for mm, with one nature that it will
round up the request size to a fixed one (mostly power of 2). Say
when user requests memory for '2^n + 1' bytes, actually 2^(n+1) bytes
could be allocated, so in worst case, there is around 50% memory
space waste.
The wastage is not a big issue for requests that get allocated/freed
quickly, but may cause problems with objects that have longer life
time.
We've met a kernel boot OOM panic (v5.10), and from the dumped slab
info:
[ 26.062145] kmalloc-2k 814056KB 814056KB
From debug we found there are huge number of 'struct iova_magazine',
whose size is 1032 bytes (1024 + 8), so each allocation will waste
1016 bytes. Though the issue was solved by giving the right (bigger)
size of RAM, it is still nice to optimize the size (either use a
kmalloc friendly size or create a dedicated slab for it).
And from lkml archive, there was another crash kernel OOM case [1]
back in 2019, which seems to be related with the similar slab waste
situation, as the log is similar:
[ 4.332648] iommu: Adding device 0000:20:02.0 to group 16
[ 4.338946] swapper/0 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null), order=0, oom_score_adj=0
...
[ 4.857565] kmalloc-2048 59164KB 59164KB
The crash kernel only has 256M memory, and 59M is pretty big here.
(Note: the related code has been changed and optimised in recent
kernel [2], these logs are just picked to demo the problem, also
a patch changing its size to 1024 bytes has been merged)
So add an way to track each kmalloc's memory waste info, and
leverage the existing SLUB debug framework (specifically
SLUB_STORE_USER) to show its call stack of original allocation,
so that user can evaluate the waste situation, identify some hot
spots and optimize accordingly, for a better utilization of memory.
The waste info is integrated into existing interface:
'/sys/kernel/debug/slab/kmalloc-xx/alloc_traces', one example of
'kmalloc-4k' after boot is:
126 ixgbe_alloc_q_vector+0xbe/0x830 [ixgbe] waste=233856/1856 age=280763/281414/282065 pid=1330 cpus=32 nodes=1
__kmem_cache_alloc_node+0x11f/0x4e0
__kmalloc_node+0x4e/0x140
ixgbe_alloc_q_vector+0xbe/0x830 [ixgbe]
ixgbe_init_interrupt_scheme+0x2ae/0xc90 [ixgbe]
ixgbe_probe+0x165f/0x1d20 [ixgbe]
local_pci_probe+0x78/0xc0
work_for_cpu_fn+0x26/0x40
...
which means in 'kmalloc-4k' slab, there are 126 requests of
2240 bytes which got a 4KB space (wasting 1856 bytes each
and 233856 bytes in total), from ixgbe_alloc_q_vector().
And when system starts some real workload like multiple docker
instances, there could are more severe waste.
[1]. https://lkml.org/lkml/2019/8/12/266
[2]. https://lore.kernel.org/lkml/2920df89-9975-5785-f79b-257d3052dfaf@huawei.com/
[Thanks Hyeonggon for pointing out several bugs about sorting/format]
[Thanks Vlastimil for suggesting way to reduce memory usage of
orig_size and keep it only for kmalloc objects]
Signed-off-by: Feng Tang <feng.tang@intel.com>
Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
|
||
Kassey Li
|
8f0efa81df |
mm/page_owner.c: add llseek for page_owner
It is too slow to dump all the pages, in some usage we just want to dump a given start pfn, for example: a CMA range or a single page. To speed up and save time, this change allows specifying of a start pfn by adding llseek for page_owner. Link: https://lkml.kernel.org/r/20220818022425.31056-1-quic_yingangl@quicinc.com Signed-off-by: Kassey Li <quic_yingangl@quicinc.com> Suggested-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Fabio M. De Francesco
|
a9e9c93966 |
Documentation/mm: add details about kmap_local_page() and preemption
What happens if a thread is preempted after mapping pages with
kmap_local_page() was questioned recently.[1]
Commit
|
||
|
Fabio M. De Francesco
|
84b86f6054 |
Documentation/mm: rrefer kmap_local_page() and avoid kmap()
The reasoning for converting kmap() to kmap_local_page() was questioned recently.[1] There are two main problems with kmap(): (1) It comes with an overhead as mapping space is restricted and protected by a global lock for synchronization and (2) kmap() also requires global TLB invalidation when its pool wraps and it might block when the mapping space is fully utilized until a slot becomes available. Warn users to avoid the use of kmap() and instead use kmap_local_page(), by designing their code to map pages in the same context the mapping will be used. [1] https://lore.kernel.org/lkml/1891319.taCxCBeP46@opensuse/ Link: https://lkml.kernel.org/r/20220728154844.10874-6-fmdefrancesco@gmail.com Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Suggested-by: Ira Weiny <ira.weiny@intel.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Peter Collingbourne <pcc@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Fabio M. De Francesco
|
6b3afe2eee |
Documentation/mm: avoid invalid use of addresses from kmap_local_page()
Users of kmap_local_page() must be absolutely sure to not hand kernel virtual address obtained calling kmap_local_page() on highmem pages to other contexts because those pointers are thread local, therefore, they are no longer valid across different contexts. Extend the documentation of kmap_local_page() to warn users about the above-mentioned potential invalid use of pointers returned by kmap_local_page(). Link: https://lkml.kernel.org/r/20220728154844.10874-5-fmdefrancesco@gmail.com Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Suggested-by: Ira Weiny <ira.weiny@intel.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Peter Collingbourne <pcc@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Fabio M. De Francesco
|
516ea046ec |
Documentation/mm: don't kmap*() pages which can't come from HIGHMEM
There is no need to kmap*() pages which are guaranteed to come from
ZONE_NORMAL (or lower). Linux has currently several call sites of
kmap{,_atomic,_local_page}() on pages which are clearly known which can't
come from ZONE_HIGHMEM.
Therefore, add a paragraph to highmem.rst, to explain better that a plain
page_address() may be used for getting the address of pages which cannot
come from ZONE_HIGHMEM, although it is always safe to use
kmap_local_page() / kunmap_local() also on those pages.
Link: https://lkml.kernel.org/r/20220728154844.10874-4-fmdefrancesco@gmail.com
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Suggested-by: Ira Weiny <ira.weiny@intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
||
Muchun Song
|
838691a1c0 |
mm: hugetlb_vmemmap: move code comments to vmemmap_dedup.rst
All the comments which explains how HVO works are moved to
vmemmap_dedup.rst since
commit
|
||
|
Muchun Song
|
dff033818a |
mm: hugetlb_vmemmap: introduce the name HVO
It it inconvenient to mention the feature of optimizing vmemmap pages associated with HugeTLB pages when communicating with others since there is no specific or abbreviated name for it when it is first introduced. Let us give it a name HVO (HugeTLB Vmemmap Optimization) from now. This commit also updates the document about "hugetlb_free_vmemmap" by the way discussed in thread [1]. Link: https://lore.kernel.org/all/21aae898-d54d-cc4b-a11f-1bb7fddcfffa@redhat.com/ [1] Link: https://lkml.kernel.org/r/20220628092235.91270-4-songmuchun@bytedance.com Signed-off-by: Muchun Song <songmuchun@bytedance.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: David Hildenbrand <david@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Will Deacon <will@kernel.org> Cc: Xiongchun Duan <duanxiongchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Linus Torvalds
|
6614a3c316 |
- The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe
Lin, Yang Shi, Anshuman Khandual and Mike Rapoport
- Some kmemleak fixes from Patrick Wang and Waiman Long
- DAMON updates from SeongJae Park
- memcg debug/visibility work from Roman Gushchin
- vmalloc speedup from Uladzislau Rezki
- more folio conversion work from Matthew Wilcox
- enhancements for coherent device memory mapping from Alex Sierra
- addition of shared pages tracking and CoW support for fsdax, from
Shiyang Ruan
- hugetlb optimizations from Mike Kravetz
- Mel Gorman has contributed some pagealloc changes to improve latency
and realtime behaviour.
- mprotect soft-dirty checking has been improved by Peter Xu
- Many other singleton patches all over the place
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCYuravgAKCRDdBJ7gKXxA
jpqSAQDrXSdII+ht9kSHlaCVYjqRFQz/rRvURQrWQV74f6aeiAD+NHHeDPwZn11/
SPktqEUrF1pxnGQxqLh1kUFUhsVZQgE=
=w/UH
-----END PGP SIGNATURE-----
Merge tag 'mm-stable-2022-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
"Most of the MM queue. A few things are still pending.
Liam's maple tree rework didn't make it. This has resulted in a few
other minor patch series being held over for next time.
Multi-gen LRU still isn't merged as we were waiting for mapletree to
stabilize. The current plan is to merge MGLRU into -mm soon and to
later reintroduce mapletree, with a view to hopefully getting both
into 6.1-rc1.
Summary:
- The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe
Lin, Yang Shi, Anshuman Khandual and Mike Rapoport
- Some kmemleak fixes from Patrick Wang and Waiman Long
- DAMON updates from SeongJae Park
- memcg debug/visibility work from Roman Gushchin
- vmalloc speedup from Uladzislau Rezki
- more folio conversion work from Matthew Wilcox
- enhancements for coherent device memory mapping from Alex Sierra
- addition of shared pages tracking and CoW support for fsdax, from
Shiyang Ruan
- hugetlb optimizations from Mike Kravetz
- Mel Gorman has contributed some pagealloc changes to improve
latency and realtime behaviour.
- mprotect soft-dirty checking has been improved by Peter Xu
- Many other singleton patches all over the place"
[ XFS merge from hell as per Darrick Wong in
https://lore.kernel.org/all/YshKnxb4VwXycPO8@magnolia/ ]
* tag 'mm-stable-2022-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (282 commits)
tools/testing/selftests/vm/hmm-tests.c: fix build
mm: Kconfig: fix typo
mm: memory-failure: convert to pr_fmt()
mm: use is_zone_movable_page() helper
hugetlbfs: fix inaccurate comment in hugetlbfs_statfs()
hugetlbfs: cleanup some comments in inode.c
hugetlbfs: remove unneeded header file
hugetlbfs: remove unneeded hugetlbfs_ops forward declaration
hugetlbfs: use helper macro SZ_1{K,M}
mm: cleanup is_highmem()
mm/hmm: add a test for cross device private faults
selftests: add soft-dirty into run_vmtests.sh
selftests: soft-dirty: add test for mprotect
mm/mprotect: fix soft-dirty check in can_change_pte_writable()
mm: memcontrol: fix potential oom_lock recursion deadlock
mm/gup.c: fix formatting in check_and_migrate_movable_page()
xfs: fail dax mount if reflink is enabled on a partition
mm/memcontrol.c: remove the redundant updating of stats_flush_threshold
userfaultfd: don't fail on unrecognized features
hugetlb_cgroup: fix wrong hugetlb cgroup numa stat
...
|
||
Mike Rapoport
|
ee65728e10 |
docs: rename Documentation/vm to Documentation/mm
so it will be consistent with code mm directory and with Documentation/admin-guide/mm and won't be confused with virtual machines. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Suggested-by: Matthew Wilcox <willy@infradead.org> Tested-by: Ira Weiny <ira.weiny@intel.com> Acked-by: Jonathan Corbet <corbet@lwn.net> Acked-by: Wu XiangCheng <bobwxc@email.cn> |