75a03dbfc836e86f6e56caf1b8e36a2735c5562f
410 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
|
7abddb6445 |
Merge 5.15.47 into android14-5.15
Changes in 5.15.47
pcmcia: db1xxx_ss: restrict to MIPS_DB1XXX boards
staging: greybus: codecs: fix type confusion of list iterator variable
iio: adc: ad7124: Remove shift from scan_type
lkdtm/bugs: Check for the NULL pointer after calling kmalloc
lkdtm/bugs: Don't expect thread termination without CONFIG_UBSAN_TRAP
tty: goldfish: Use tty_port_destroy() to destroy port
tty: serial: owl: Fix missing clk_disable_unprepare() in owl_uart_probe
tty: n_tty: Restore EOF push handling behavior
serial: 8250_aspeed_vuart: Fix potential NULL dereference in aspeed_vuart_probe
tty: serial: fsl_lpuart: fix potential bug when using both of_alias_get_id and ida_simple_get
remoteproc: imx_rproc: Ignore create mem entry for resource table
usb: usbip: fix a refcount leak in stub_probe()
usb: usbip: add missing device lock on tweak configuration cmd
USB: storage: karma: fix rio_karma_init return
usb: musb: Fix missing of_node_put() in omap2430_probe
staging: fieldbus: Fix the error handling path in anybuss_host_common_probe()
pwm: lp3943: Fix duty calculation in case period was clamped
pwm: raspberrypi-poe: Fix endianness in firmware struct
rpmsg: qcom_smd: Fix irq_of_parse_and_map() return value
usb: dwc3: gadget: Replace list_for_each_entry_safe() if using giveback
usb: dwc3: pci: Fix pm_runtime_get_sync() error checking
misc: fastrpc: fix an incorrect NULL check on list iterator
firmware: stratix10-svc: fix a missing check on list iterator
usb: typec: mux: Check dev_set_name() return value
rpmsg: virtio: Fix possible double free in rpmsg_probe()
rpmsg: virtio: Fix possible double free in rpmsg_virtio_add_ctrl_dev()
rpmsg: virtio: Fix the unregistration of the device rpmsg_ctrl
iio: adc: stmpe-adc: Fix wait_for_completion_timeout return value check
iio: proximity: vl53l0x: Fix return value check of wait_for_completion_timeout
iio: adc: sc27xx: fix read big scale voltage not right
iio: adc: sc27xx: Fine tune the scale calibration values
rpmsg: qcom_smd: Fix returning 0 if irq_of_parse_and_map() fails
pvpanic: Fix typos in the comments
misc/pvpanic: Convert regular spinlock into trylock on panic path
phy: qcom-qmp: fix pipe-clock imbalance on power-on failure
power: supply: axp288_fuel_gauge: Drop BIOS version check from "T3 MRD" DMI quirk
serial: sifive: Report actual baud base rather than fixed 115200
export: fix string handling of namespace in EXPORT_SYMBOL_NS
soundwire: intel: prevent pm_runtime resume prior to system suspend
coresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier
ksmbd: fix reference count leak in smb_check_perm_dacl()
extcon: ptn5150: Add queue work sync before driver release
soc: rockchip: Fix refcount leak in rockchip_grf_init
clocksource/drivers/riscv: Events are stopped during CPU suspend
ARM: dts: aspeed: ast2600-evb: Enable RX delay for MAC0/MAC1
rtc: mt6397: check return value after calling platform_get_resource()
rtc: ftrtc010: Use platform_get_irq() to get the interrupt
rtc: ftrtc010: Fix error handling in ftrtc010_rtc_probe
staging: r8188eu: add check for kzalloc
tty: n_gsm: Don't ignore write return value in gsmld_output()
tty: n_gsm: Fix packet data hex dump output
serial: meson: acquire port->lock in startup()
serial: 8250_fintek: Check SER_RS485_RTS_* only with RS485
serial: cpm_uart: Fix build error without CONFIG_SERIAL_CPM_CONSOLE
serial: digicolor-usart: Don't allow CS5-6
serial: rda-uart: Don't allow CS5-6
serial: txx9: Don't allow CS5-6
serial: sh-sci: Don't allow CS5-6
serial: sifive: Sanitize CSIZE and c_iflag
serial: st-asc: Sanitize CSIZE and correct PARENB for CS7
serial: stm32-usart: Correct CSIZE, bits, and parity
firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle
bus: ti-sysc: Fix warnings for unbind for serial
driver: base: fix UAF when driver_attach failed
driver core: fix deadlock in __device_attach
watchdog: rti-wdt: Fix pm_runtime_get_sync() error checking
watchdog: ts4800_wdt: Fix refcount leak in ts4800_wdt_probe
blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx
ASoC: fsl_sai: Fix FSL_SAI_xDR/xFR definition
clocksource/drivers/oxnas-rps: Fix irq_of_parse_and_map() return value
s390/crypto: fix scatterwalk_unmap() callers in AES-GCM
net: sched: fixed barrier to prevent skbuff sticking in qdisc backlog
net: ethernet: mtk_eth_soc: out of bounds read in mtk_hwlro_get_fdir_entry()
net: ethernet: ti: am65-cpsw-nuss: Fix some refcount leaks
net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register
modpost: fix removing numeric suffixes
jffs2: fix memory leak in jffs2_do_fill_super
ubi: fastmap: Fix high cpu usage of ubi_bgt by making sure wl_pool not empty
ubi: ubi_create_volume: Fix use-after-free when volume creation failed
selftests/bpf: fix selftest after random: Urandom_read tracepoint removal
selftests/bpf: fix stacktrace_build_id with missing kprobe/urandom_read
bpf: Fix probe read error in ___bpf_prog_run()
block: take destination bvec offsets into account in bio_copy_data_iter
riscv: read-only pages should not be writable
net/smc: fixes for converting from "struct smc_cdc_tx_pend **" to "struct smc_wr_tx_pend_priv *"
tcp: add accessors to read/set tp->snd_cwnd
nfp: only report pause frame configuration for physical device
sfc: fix considering that all channels have TX queues
sfc: fix wrong tx channel offset with efx_separate_tx_channels
block: make bioset_exit() fully resilient against being called twice
vdpa: Fix error logic in vdpa_nl_cmd_dev_get_doit
virtio: pci: Fix an error handling path in vp_modern_probe()
net/mlx5: Don't use already freed action pointer
net/mlx5e: TC NIC mode, fix tc chains miss table
net/mlx5: CT: Fix header-rewrite re-use for tupels
net/mlx5: correct ECE offset in query qp output
net/mlx5e: Update netdev features after changing XDP state
net: sched: add barrier to fix packet stuck problem for lockless qdisc
tcp: tcp_rtx_synack() can be called from process context
vdpa: ifcvf: set pci driver data in probe
octeontx2-af: fix error code in is_valid_offset()
s390/mcck: isolate SIE instruction when setting CIF_MCCK_GUEST flag
regulator: mt6315-regulator: fix invalid allowed mode
gpio: pca953x: use the correct register address to do regcache sync
afs: Fix infinite loop found by xfstest generic/676
scsi: sd: Fix potential NULL pointer dereference
tipc: check attribute length for bearer name
driver core: Fix wait_for_device_probe() & deferred_probe_timeout interaction
perf c2c: Fix sorting in percent_rmt_hitm_cmp()
dmaengine: idxd: set DMA_INTERRUPT cap bit
mips: cpc: Fix refcount leak in mips_cpc_default_phys_base
bootconfig: Make the bootconfig.o as a normal object file
tracing: Make tp_printk work on syscall tracepoints
tracing: Fix sleeping function called from invalid context on RT kernel
tracing: Avoid adding tracer option before update_tracer_options
iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe()
iommu/arm-smmu-v3: check return value after calling platform_get_resource()
f2fs: remove WARN_ON in f2fs_is_valid_blkaddr
i2c: cadence: Increase timeout per message if necessary
m68knommu: set ZERO_PAGE() to the allocated zeroed page
m68knommu: fix undefined reference to `_init_sp'
dmaengine: zynqmp_dma: In struct zynqmp_dma_chan fix desc_size data type
NFSv4: Don't hold the layoutget locks across multiple RPC calls
video: fbdev: hyperv_fb: Allow resolutions with size > 64 MB for Gen1
video: fbdev: pxa3xx-gcu: release the resources correctly in pxa3xx_gcu_probe/remove()
RISC-V: use memcpy for kexec_file mode
m68knommu: fix undefined reference to `mach_get_rtc_pll'
f2fs: fix to tag gcing flag on page during file defragment
xprtrdma: treat all calls not a bcall when bc_serv is NULL
drm/bridge: sn65dsi83: Fix an error handling path in sn65dsi83_probe()
drm/bridge: ti-sn65dsi83: Handle dsi_lanes == 0 as invalid
netfilter: nat: really support inet nat without l3 address
netfilter: nf_tables: use kfree_rcu(ptr, rcu) to release hooks in clean_net path
netfilter: nf_tables: delete flowtable hooks via transaction list
powerpc/kasan: Force thread size increase with KASAN
SUNRPC: Trap RDMA segment overflows
netfilter: nf_tables: always initialize flowtable hook list in transaction
ata: pata_octeon_cf: Fix refcount leak in octeon_cf_probe
netfilter: nf_tables: release new hooks on unsupported flowtable flags
netfilter: nf_tables: memleak flow rule from commit path
netfilter: nf_tables: bail out early if hardware offload is not supported
xen: unexport __init-annotated xen_xlate_map_ballooned_pages()
stmmac: intel: Fix an error handling path in intel_eth_pci_probe()
af_unix: Fix a data-race in unix_dgram_peer_wake_me().
bpf, arm64: Clear prog->jited_len along prog->jited
net: dsa: lantiq_gswip: Fix refcount leak in gswip_gphy_fw_list
net/mlx4_en: Fix wrong return value on ioctl EEPROM query failure
i40e: xsk: Move tmp desc array from driver to pool
xsk: Fix handling of invalid descriptors in XSK TX batching API
SUNRPC: Fix the calculation of xdr->end in xdr_get_next_encode_buffer()
net: mdio: unexport __init-annotated mdio_bus_init()
net: xfrm: unexport __init-annotated xfrm4_protocol_init()
net: ipv6: unexport __init-annotated seg6_hmac_init()
net/mlx5: Lag, filter non compatible devices
net/mlx5: Fix mlx5_get_next_dev() peer device matching
net/mlx5: Rearm the FW tracer after each tracer event
net/mlx5: fs, fail conflicting actions
ip_gre: test csum_start instead of transport header
net: altera: Fix refcount leak in altera_tse_mdio_create
net: dsa: mv88e6xxx: use BMSR_ANEGCOMPLETE bit for filling an_complete
tcp: use alloc_large_system_hash() to allocate table_perturb
drm: imx: fix compiler warning with gcc-12
nfp: flower: restructure flow-key for gre+vlan combination
iov_iter: Fix iter_xarray_get_pages{,_alloc}()
iio: dummy: iio_simple_dummy: check the return value of kstrdup()
staging: rtl8712: fix a potential memory leak in r871xu_drv_init()
iio: st_sensors: Add a local lock for protecting odr
lkdtm/usercopy: Expand size of "out of frame" object
drivers: staging: rtl8723bs: Fix deadlock in rtw_surveydone_event_callback()
drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()
tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()
tty: Fix a possible resource leak in icom_probe
thunderbolt: Use different lane for second DisplayPort tunnel
drivers: staging: rtl8192u: Fix deadlock in ieee80211_beacons_stop()
drivers: staging: rtl8192e: Fix deadlock in rtllib_beacons_stop()
USB: host: isp116x: check return value after calling platform_get_resource()
drivers: tty: serial: Fix deadlock in sa1100_set_termios()
drivers: usb: host: Fix deadlock in oxu_bus_suspend()
USB: hcd-pci: Fully suspend across freeze/thaw cycle
char: xillybus: fix a refcount leak in cleanup_dev()
sysrq: do not omit current cpu when showing backtrace of all active CPUs
usb: dwc2: gadget: don't reset gadget's driver->bus
soundwire: qcom: adjust autoenumeration timeout
misc: rtsx: set NULL intfdata when probe fails
extcon: Fix extcon_get_extcon_dev() error handling
extcon: Modify extcon device to be created after driver data is set
clocksource/drivers/sp804: Avoid error on multiple instances
staging: rtl8712: fix uninit-value in usb_read8() and friends
staging: rtl8712: fix uninit-value in r871xu_drv_init()
serial: msm_serial: disable interrupts in __msm_console_write()
kernfs: Separate kernfs_pr_cont_buf and rename_lock.
watchdog: wdat_wdt: Stop watchdog when rebooting the system
md: protect md_unregister_thread from reentrancy
scsi: myrb: Fix up null pointer access on myrb_cleanup()
Revert "net: af_key: add check for pfkey_broadcast in function pfkey_process"
ceph: allow ceph.dir.rctime xattr to be updatable
ceph: flush the mdlog for filesystem sync
drm/amd/display: Check if modulo is 0 before dividing.
drm/radeon: fix a possible null pointer dereference
drm/amd/pm: Fix missing thermal throttler status
um: line: Use separate IRQs per line
modpost: fix undefined behavior of is_arm_mapping_symbol()
x86/cpu: Elide KCSAN for cpu_has() and friends
jump_label,noinstr: Avoid instrumentation for JUMP_LABEL=n builds
nbd: call genl_unregister_family() first in nbd_cleanup()
nbd: fix race between nbd_alloc_config() and module removal
nbd: fix io hung while disconnecting device
s390/gmap: voluntarily schedule during key setting
cifs: version operations for smb20 unneeded when legacy support disabled
drm/amd/pm: use bitmap_{from,to}_arr32 where appropriate
nodemask: Fix return values to be unsigned
vringh: Fix loop descriptors check in the indirect cases
scripts/gdb: change kernel config dumping method
ALSA: usb-audio: Skip generic sync EP parse for secondary EP
ALSA: usb-audio: Set up (implicit) sync for Saffire 6
ALSA: hda/conexant - Fix loopback issue with CX20632
ALSA: hda/realtek: Fix for quirk to enable speaker output on the Lenovo Yoga DuetITL 2021
ALSA: hda/realtek: Add quirk for HP Dev One
cifs: return errors during session setup during reconnects
cifs: fix reconnect on smb3 mount types
KEYS: trusted: tpm2: Fix migratable logic
ata: libata-transport: fix {dma|pio|xfer}_mode sysfs files
mmc: block: Fix CQE recovery reset success
net: phy: dp83867: retrigger SGMII AN when link change
net: openvswitch: fix misuse of the cached connection on tuple changes
writeback: Fix inode->i_io_list not be protected by inode->i_lock error
nfc: st21nfca: fix incorrect validating logic in EVT_TRANSACTION
nfc: st21nfca: fix memory leaks in EVT_TRANSACTION handling
nfc: st21nfca: fix incorrect sizing calculations in EVT_TRANSACTION
ixgbe: fix bcast packets Rx on VF after promisc removal
ixgbe: fix unexpected VLAN Rx in promisc mode on VF
Input: bcm5974 - set missing URB_NO_TRANSFER_DMA_MAP urb flag
vduse: Fix NULL pointer dereference on sysfs access
powerpc: Don't select HAVE_IRQ_EXIT_ON_IRQ_STACK
drm/bridge: analogix_dp: Support PSR-exit to disable transition
drm/atomic: Force bridge self-refresh-exit on CRTC switch
drm/amdgpu: update VCN codec support for Yellow Carp
powerpc/32: Fix overread/overwrite of thread_struct via ptrace
powerpc/mm: Switch obsolete dssall to .long
drm/ast: Create threshold values for AST2600
random: avoid checking crng_ready() twice in random_init()
random: mark bootloader randomness code as __init
random: account for arch randomness in bits
md/raid0: Ignore RAID0 layout if the second zone has only one device
net/sched: act_police: more accurate MTU policing
PCI: qcom: Fix pipe clock imbalance
zonefs: fix handling of explicit_open option on mount
iov_iter: fix build issue due to possible type mis-match
dmaengine: idxd: add missing callback function to support DMA_INTERRUPT
tcp: fix tcp_mtup_probe_success vs wrong snd_cwnd
xsk: Fix possible crash when multiple sockets are created
Linux 5.15.47
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I40e7672edf2bd713fee775919d062e2934d9103d
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Greg Kroah-Hartman
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3d8ac88867 |
Merge 5.15.46 into android14-5.15
Changes in 5.15.46
binfmt_flat: do not stop relocating GOT entries prematurely on riscv
parisc/stifb: Implement fb_is_primary_device()
parisc/stifb: Keep track of hardware path of graphics card
RISC-V: Mark IORESOURCE_EXCLUSIVE for reserved mem instead of IORESOURCE_BUSY
riscv: Initialize thread pointer before calling C functions
riscv: Fix irq_work when SMP is disabled
riscv: Wire up memfd_secret in UAPI header
riscv: Move alternative length validation into subsection
ALSA: hda/realtek - Add new type for ALC245
ALSA: hda/realtek: Enable 4-speaker output for Dell XPS 15 9520 laptop
ALSA: hda/realtek - Fix microphone noise on ASUS TUF B550M-PLUS
ALSA: usb-audio: Cancel pending work at closing a MIDI substream
USB: serial: pl2303: fix type detection for odd device
USB: serial: option: add Quectel BG95 modem
USB: new quirk for Dell Gen 2 devices
usb: isp1760: Fix out-of-bounds array access
usb: dwc3: gadget: Move null pinter check to proper place
usb: core: hcd: Add support for deferring roothub registration
fs/ntfs3: Update valid size if -EIOCBQUEUED
fs/ntfs3: Fix fiemap + fix shrink file size (to remove preallocated space)
fs/ntfs3: Keep preallocated only if option prealloc enabled
fs/ntfs3: Check new size for limits
fs/ntfs3: In function ntfs_set_acl_ex do not change inode->i_mode if called from function ntfs_init_acl
fs/ntfs3: Fix some memory leaks in an error handling path of 'log_replay()'
fs/ntfs3: Update i_ctime when xattr is added
fs/ntfs3: Restore ntfs_xattr_get_acl and ntfs_xattr_set_acl functions
cifs: fix potential double free during failed mount
cifs: when extending a file with falloc we should make files not-sparse
xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI
platform/x86: intel-hid: fix _DSM function index handling
x86/MCE/AMD: Fix memory leak when threshold_create_bank() fails
perf/x86/intel: Fix event constraints for ICL
x86/kexec: fix memory leak of elf header buffer
x86/sgx: Set active memcg prior to shmem allocation
ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP
ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
btrfs: add "0x" prefix for unsupported optional features
btrfs: return correct error number for __extent_writepage_io()
btrfs: repair super block num_devices automatically
btrfs: fix the error handling for submit_extent_page() for btrfs_do_readpage()
iommu/vt-d: Add RPLS to quirk list to skip TE disabling
drm/vmwgfx: validate the screen formats
drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes
selftests/bpf: Fix vfs_link kprobe definition
selftests/bpf: Fix parsing of prog types in UAPI hdr for bpftool sync
mwifiex: add mutex lock for call in mwifiex_dfs_chan_sw_work_queue
b43legacy: Fix assigning negative value to unsigned variable
b43: Fix assigning negative value to unsigned variable
ipw2x00: Fix potential NULL dereference in libipw_xmit()
ipv6: fix locking issues with loops over idev->addr_list
fbcon: Consistently protect deferred_takeover with console_lock()
x86/platform/uv: Update TSC sync state for UV5
ACPICA: Avoid cache flush inside virtual machines
mac80211: minstrel_ht: fix where rate stats are stored (fixes debugfs output)
drm/komeda: return early if drm_universal_plane_init() fails.
drm/amd/display: Disabling Z10 on DCN31
rcu-tasks: Fix race in schedule and flush work
rcu: Make TASKS_RUDE_RCU select IRQ_WORK
sfc: ef10: Fix assigning negative value to unsigned variable
ALSA: jack: Access input_dev under mutex
rtw88: 8821c: fix debugfs rssi value
spi: spi-rspi: Remove setting {src,dst}_{addr,addr_width} based on DMA direction
tools/power turbostat: fix ICX DRAM power numbers
scsi: lpfc: Move cfg_log_verbose check before calling lpfc_dmp_dbg()
scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock
scsi: lpfc: Fix call trace observed during I/O with CMF enabled
cpuidle: PSCI: Improve support for suspend-to-RAM for PSCI OSI mode
drm/amd/pm: fix double free in si_parse_power_table()
ASoC: rsnd: care default case on rsnd_ssiu_busif_err_status_clear()
ASoC: rsnd: care return value from rsnd_node_fixed_index()
ath9k: fix QCA9561 PA bias level
media: venus: hfi: avoid null dereference in deinit
media: pci: cx23885: Fix the error handling in cx23885_initdev()
media: cx25821: Fix the warning when removing the module
md/bitmap: don't set sb values if can't pass sanity check
mmc: jz4740: Apply DMA engine limits to maximum segment size
drivers: mmc: sdhci_am654: Add the quirk to set TESTCD bit
scsi: megaraid: Fix error check return value of register_chrdev()
drm/amdgpu/sdma: Fix incorrect calculations of the wptr of the doorbells
scsi: ufs: Use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()
scsi: lpfc: Fix resource leak in lpfc_sli4_send_seq_to_ulp()
ath11k: disable spectral scan during spectral deinit
ASoC: Intel: bytcr_rt5640: Add quirk for the HP Pro Tablet 408
drm/plane: Move range check for format_count earlier
drm/amd/pm: fix the compile warning
ath10k: skip ath10k_halt during suspend for driver state RESTARTING
arm64: compat: Do not treat syscall number as ESR_ELx for a bad syscall
drm: msm: fix error check return value of irq_of_parse_and_map()
scsi: target: tcmu: Fix possible data corruption
ipv6: Don't send rs packets to the interface of ARPHRD_TUNNEL
net/mlx5: fs, delete the FTE when there are no rules attached to it
ASoC: dapm: Don't fold register value changes into notifications
mlxsw: spectrum_dcb: Do not warn about priority changes
mlxsw: Treat LLDP packets as control
drm/amdgpu/psp: move PSP memory alloc from hw_init to sw_init
drm/amdgpu/ucode: Remove firmware load type check in amdgpu_ucode_free_bo
regulator: mt6315: Enforce regulator-compatible, not name
HID: bigben: fix slab-out-of-bounds Write in bigben_probe
of: Support more than one crash kernel regions for kexec -s
ASoC: tscs454: Add endianness flag in snd_soc_component_driver
scsi: lpfc: Alter FPIN stat accounting logic
net: remove two BUG() from skb_checksum_help()
s390/preempt: disable __preempt_count_add() optimization for PROFILE_ALL_BRANCHES
perf/amd/ibs: Cascade pmu init functions' return value
sched/core: Avoid obvious double update_rq_clock warning
spi: stm32-qspi: Fix wait_cmd timeout in APM mode
dma-debug: change allocation mode from GFP_NOWAIT to GFP_ATIOMIC
ACPI: PM: Block ASUS B1400CEAE from suspend to idle by default
ipmi:ssif: Check for NULL msg when handling events and messages
ipmi: Fix pr_fmt to avoid compilation issues
rtlwifi: Use pr_warn instead of WARN_ONCE
mt76: mt7921: accept rx frames with non-standard VHT MCS10-11
mt76: fix encap offload ethernet type check
media: rga: fix possible memory leak in rga_probe
media: coda: limit frame interval enumeration to supported encoder frame sizes
media: hantro: HEVC: unconditionnaly set pps_{cb/cr}_qp_offset values
media: ccs-core.c: fix failure to call clk_disable_unprepare
media: imon: reorganize serialization
media: cec-adap.c: fix is_configuring state
usbnet: Run unregister_netdev() before unbind() again
openrisc: start CPU timer early in boot
nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags
ASoC: rt5645: Fix errorenous cleanup order
nbd: Fix hung on disconnect request if socket is closed before
drm/amd/pm: update smartshift powerboost calc for smu12
drm/amd/pm: update smartshift powerboost calc for smu13
net: phy: micrel: Allow probing without .driver_data
media: exynos4-is: Fix compile warning
media: hantro: Stop using H.264 parameter pic_num
ASoC: max98357a: remove dependency on GPIOLIB
ASoC: rt1015p: remove dependency on GPIOLIB
ACPI: CPPC: Assume no transition latency if no PCCT
nvme: set non-mdts limits in nvme_scan_work
can: mcp251xfd: silence clang's -Wunaligned-access warning
x86/microcode: Add explicit CPU vendor dependency
net: ipa: ignore endianness if there is no header
m68k: atari: Make Atari ROM port I/O write macros return void
rxrpc: Return an error to sendmsg if call failed
rxrpc, afs: Fix selection of abort codes
afs: Adjust ACK interpretation to try and cope with NAT
eth: tg3: silence the GCC 12 array-bounds warning
char: tpm: cr50_i2c: Suppress duplicated error message in .remove()
selftests/bpf: fix btf_dump/btf_dump due to recent clang change
gfs2: use i_lock spin_lock for inode qadata
scsi: target: tcmu: Avoid holding XArray lock when calling lock_page
IB/rdmavt: add missing locks in rvt_ruc_loopback
ARM: dts: ox820: align interrupt controller node name with dtschema
ARM: dts: socfpga: align interrupt controller node name with dtschema
ARM: dts: s5pv210: align DMA channels with dtschema
arm64: dts: qcom: msm8994: Fix the cont_splash_mem address
arm64: dts: qcom: msm8994: Fix BLSP[12]_DMA channels count
PM / devfreq: rk3399_dmc: Disable edev on remove()
crypto: ccree - use fine grained DMA mapping dir
soc: ti: ti_sci_pm_domains: Check for null return of devm_kcalloc
fs: jfs: fix possible NULL pointer dereference in dbFree()
arm64: dts: qcom: sdm845-xiaomi-beryllium: fix typo in panel's vddio-supply property
ALSA: usb-audio: Add quirk bits for enabling/disabling generic implicit fb
ALSA: usb-audio: Move generic implicit fb quirk entries into quirks.c
ARM: OMAP1: clock: Fix UART rate reporting algorithm
powerpc/fadump: Fix fadump to work with a different endian capture kernel
fat: add ratelimit to fat*_ent_bread()
pinctrl: renesas: rzn1: Fix possible null-ptr-deref in sh_pfc_map_resources()
ARM: versatile: Add missing of_node_put in dcscb_init
ARM: dts: exynos: add atmel,24c128 fallback to Samsung EEPROM
ARM: hisi: Add missing of_node_put after of_find_compatible_node
cpufreq: Avoid unnecessary frequency updates due to mismatch
powerpc/rtas: Keep MSR[RI] set when calling RTAS
PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store()
KVM: PPC: Book3S HV Nested: L2 LPCR should inherit L1 LPES setting
alpha: fix alloc_zeroed_user_highpage_movable()
tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate
powerpc/powernv/vas: Assign real address to rx_fifo in vas_rx_win_attr
powerpc/xics: fix refcount leak in icp_opal_init()
powerpc/powernv: fix missing of_node_put in uv_init()
macintosh/via-pmu: Fix build failure when CONFIG_INPUT is disabled
powerpc/iommu: Add missing of_node_put in iommu_init_early_dart
smb3: check for null tcon
RDMA/hfi1: Prevent panic when SDMA is disabled
Input: gpio-keys - cancel delayed work only in case of GPIO
drm: fix EDID struct for old ARM OABI format
drm/bridge_connector: enable HPD by default if supported
dt-bindings: display: sitronix, st7735r: Fix backlight in example
drm/vmwgfx: Fix an invalid read
ath11k: acquire ab->base_lock in unassign when finding the peer by addr
drm: bridge: it66121: Fix the register page length
ath9k: fix ar9003_get_eepmisc
drm/edid: fix invalid EDID extension block filtering
drm/bridge: adv7511: clean up CEC adapter when probe fails
drm: bridge: icn6211: Fix register layout
drm: bridge: icn6211: Fix HFP_HSW_HBP_HI and HFP_MIN handling
mtd: spinand: gigadevice: fix Quad IO for GD5F1GQ5UExxG
spi: qcom-qspi: Add minItems to interconnect-names
ASoC: mediatek: Fix error handling in mt8173_max98090_dev_probe
ASoC: mediatek: Fix missing of_node_put in mt2701_wm8960_machine_probe
x86/delay: Fix the wrong asm constraint in delay_loop()
drm/vc4: hvs: Fix frame count register readout
drm/mediatek: Fix mtk_cec_mask()
drm/vc4: hvs: Reset muxes at probe time
drm/vc4: txp: Don't set TXP_VSTART_AT_EOF
drm/vc4: txp: Force alpha to be 0xff if it's disabled
libbpf: Don't error out on CO-RE relos for overriden weak subprogs
x86/PCI: Fix ALi M1487 (IBC) PIRQ router link value interpretation
mptcp: reset the packet scheduler on PRIO change
nl80211: show SSID for P2P_GO interfaces
drm/komeda: Fix an undefined behavior bug in komeda_plane_add()
drm: mali-dp: potential dereference of null pointer
spi: spi-ti-qspi: Fix return value handling of wait_for_completion_timeout
scftorture: Fix distribution of short handler delays
net: dsa: mt7530: 1G can also support 1000BASE-X link mode
ixp4xx_eth: fix error check return value of platform_get_irq()
NFC: NULL out the dev->rfkill to prevent UAF
efi: Add missing prototype for efi_capsule_setup_info
device property: Check fwnode->secondary when finding properties
device property: Allow error pointer to be passed to fwnode APIs
target: remove an incorrect unmap zeroes data deduction
drbd: fix duplicate array initializer
EDAC/dmc520: Don't print an error for each unconfigured interrupt line
mtd: rawnand: denali: Use managed device resources
HID: hid-led: fix maximum brightness for Dream Cheeky
HID: elan: Fix potential double free in elan_input_configured
drm/bridge: Fix error handling in analogix_dp_probe
regulator: da9121: Fix uninit-value in da9121_assign_chip_model()
drm/mediatek: dpi: Use mt8183 output formats for mt8192
signal: Deliver SIGTRAP on perf event asynchronously if blocked
sched/fair: Fix cfs_rq_clock_pelt() for throttled cfs_rq
sched/psi: report zeroes for CPU full at the system level
spi: img-spfi: Fix pm_runtime_get_sync() error checking
cpufreq: Fix possible race in cpufreq online error path
printk: use atomic updates for klogd work
printk: add missing memory barrier to wake_up_klogd()
printk: wake waiters for safe and NMI contexts
ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix
media: i2c: max9286: Use dev_err_probe() helper
media: i2c: max9286: Use "maxim,gpio-poc" property
media: i2c: max9286: fix kernel oops when removing module
media: hantro: Empty encoder capture buffers by default
drm/panel: simple: Add missing bus flags for Innolux G070Y2-L01
ALSA: pcm: Check for null pointer of pointer substream before dereferencing it
mtdblock: warn if opened on NAND
inotify: show inotify mask flags in proc fdinfo
fsnotify: fix wrong lockdep annotations
spi: rockchip: Stop spi slave dma receiver when cs inactive
spi: rockchip: Preset cs-high and clk polarity in setup progress
spi: rockchip: fix missing error on unsupported SPI_CS_HIGH
of: overlay: do not break notify on NOTIFY_{OK|STOP}
selftests/damon: add damon to selftests root Makefile
drm/msm/dp: Modify prototype of encoder based API
drm/msm/hdmi: switch to drm_bridge_connector
drm/msm/dpu: adjust display_v_end for eDP and DP
scsi: iscsi: Fix harmless double shift bug
scsi: ufs: qcom: Fix ufs_qcom_resume()
scsi: ufs: core: Exclude UECxx from SFR dump list
drm/v3d: Fix null pointer dereference of pointer perfmon
selftests/resctrl: Fix null pointer dereference on open failed
libbpf: Fix logic for finding matching program for CO-RE relocation
mtd: spi-nor: core: Check written SR value in spi_nor_write_16bit_sr_and_check()
x86/pm: Fix false positive kmemleak report in msr_build_context()
mtd: rawnand: cadence: fix possible null-ptr-deref in cadence_nand_dt_probe()
mtd: rawnand: intel: fix possible null-ptr-deref in ebu_nand_probe()
x86/speculation: Add missing prototype for unpriv_ebpf_notify()
ASoC: rk3328: fix disabling mclk on pclk probe failure
perf tools: Add missing headers needed by util/data.h
drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume
drm/msm/dp: stop event kernel thread when DP unbind
drm/msm/dp: fix error check return value of irq_of_parse_and_map()
drm/msm/dp: reset DP controller before transmit phy test pattern
drm/msm/dp: do not stop transmitting phy test pattern during DP phy compliance test
drm/msm/dsi: fix error checks and return values for DSI xmit functions
drm/msm/hdmi: check return value after calling platform_get_resource_byname()
drm/msm/hdmi: fix error check return value of irq_of_parse_and_map()
drm/msm: add missing include to msm_drv.c
drm/panel: panel-simple: Fix proper bpc for AM-1280800N3TZQW-T00H
kunit: fix debugfs code to use enum kunit_status, not bool
drm/rockchip: vop: fix possible null-ptr-deref in vop_bind()
spi: cadence-quadspi: fix Direct Access Mode disable for SoCFPGA
perf tools: Use Python devtools for version autodetection rather than runtime
virtio_blk: fix the discard_granularity and discard_alignment queue limits
nl80211: don't hold RTNL in color change request
x86: Fix return value of __setup handlers
irqchip/exiu: Fix acknowledgment of edge triggered interrupts
irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value
irqchip/aspeed-scu-ic: Fix irq_of_parse_and_map() return value
x86/mm: Cleanup the control_va_addr_alignment() __setup handler
arm64: fix types in copy_highpage()
regulator: core: Fix enable_count imbalance with EXCLUSIVE_GET
drm/msm/dsi: fix address for second DSI PHY on SDM660
drm/msm/dp: fix event thread stuck in wait_event after kthread_stop()
drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected
drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected
drm/msm: return an error pointer in msm_gem_prime_get_sg_table()
media: uvcvideo: Fix missing check to determine if element is found in list
arm64: stackleak: fix current_top_of_stack()
iomap: iomap_write_failed fix
spi: spi-fsl-qspi: check return value after calling platform_get_resource_byname()
Revert "cpufreq: Fix possible race in cpufreq online error path"
regulator: qcom_smd: Fix up PM8950 regulator configuration
samples: bpf: Don't fail for a missing VMLINUX_BTF when VMLINUX_H is provided
perf/amd/ibs: Use interrupt regs ip for stack unwinding
ath11k: Don't check arvif->is_started before sending management frames
wilc1000: fix crash observed in AP mode with cfg80211_register_netdevice()
HID: amd_sfh: Modify the bus name
HID: amd_sfh: Modify the hid name
ASoC: fsl: Use dev_err_probe() helper
ASoC: fsl: Fix refcount leak in imx_sgtl5000_probe
ASoC: imx-hdmi: Fix refcount leak in imx_hdmi_probe
ASoC: mxs-saif: Fix refcount leak in mxs_saif_probe
regulator: pfuze100: Fix refcount leak in pfuze_parse_regulators_dt
dma-direct: factor out a helper for DMA_ATTR_NO_KERNEL_MAPPING allocations
dma-direct: don't fail on highmem CMA pages in dma_direct_alloc_pages
ASoC: samsung: Use dev_err_probe() helper
ASoC: samsung: Fix refcount leak in aries_audio_probe
block: Fix the bio.bi_opf comment
kselftest/cgroup: fix test_stress.sh to use OUTPUT dir
scripts/faddr2line: Fix overlapping text section failures
media: aspeed: Fix an error handling path in aspeed_video_probe()
media: exynos4-is: Fix PM disable depth imbalance in fimc_is_probe
mt76: mt7921: Fix the error handling path of mt7921_pci_probe()
mt76: do not attempt to reorder received 802.3 packets without agg session
media: st-delta: Fix PM disable depth imbalance in delta_probe
media: atmel: atmel-isc: Fix PM disable depth imbalance in atmel_isc_probe
media: i2c: rdacm2x: properly set subdev entity function
media: exynos4-is: Change clk_disable to clk_disable_unprepare
media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init
media: vsp1: Fix offset calculation for plane cropping
media: atmel: atmel-sama5d2-isc: fix wrong mask in YUYV format check
media: hantro: HEVC: Fix tile info buffer value computation
Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout
Bluetooth: use hdev lock in activate_scan for hci_is_adv_monitoring
Bluetooth: use hdev lock for accept_list and reject_list in conn req
nvme: set dma alignment to dword
m68k: math-emu: Fix dependencies of math emulation support
sctp: read sk->sk_bound_dev_if once in sctp_rcv()
net: hinic: add missing destroy_workqueue in hinic_pf_to_mgmt_init
ASoC: ti: j721e-evm: Fix refcount leak in j721e_soc_probe_*
kselftest/arm64: bti: force static linking
media: ov7670: remove ov7670_power_off from ov7670_remove
media: i2c: ov5648: fix wrong pointer passed to IS_ERR() and PTR_ERR()
media: staging: media: rkvdec: Make use of the helper function devm_platform_ioremap_resource()
media: rkvdec: h264: Fix dpb_valid implementation
media: rkvdec: h264: Fix bit depth wrap in pps packet
regulator: scmi: Fix refcount leak in scmi_regulator_probe
ext4: reject the 'commit' option on ext2 filesystems
drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init
drm: msm: fix possible memory leak in mdp5_crtc_cursor_set()
x86/sev: Annotate stack change in the #VC handler
drm/msm: don't free the IRQ if it was not requested
selftests/bpf: Add missed ima_setup.sh in Makefile
drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path
drm/i915: Fix CFI violation with show_dynamic_id()
thermal/drivers/bcm2711: Don't clamp temperature at zero
thermal/drivers/broadcom: Fix potential NULL dereference in sr_thermal_probe
thermal/core: Fix memory leak in __thermal_cooling_device_register()
thermal/drivers/imx_sc_thermal: Fix refcount leak in imx_sc_thermal_probe
bfq: Relax waker detection for shared queues
bfq: Allow current waker to defend against a tentative one
ASoC: wm2000: fix missing clk_disable_unprepare() on error in wm2000_anc_transition()
PM: domains: Fix initialization of genpd's next_wakeup
net: macb: Fix PTP one step sync support
NFC: hci: fix sleep in atomic context bugs in nfc_hci_hcp_message_tx
ASoC: max98090: Move check for invalid values before casting in max98090_put_enab_tlv()
net: stmmac: selftests: Use kcalloc() instead of kzalloc()
net: stmmac: fix out-of-bounds access in a selftest
hv_netvsc: Fix potential dereference of NULL pointer
hwmon: (pmbus) Check PEC support before reading other registers
rxrpc: Fix listen() setting the bar too high for the prealloc rings
rxrpc: Don't try to resend the request if we're receiving the reply
rxrpc: Fix overlapping ACK accounting
rxrpc: Don't let ack.previousPacket regress
rxrpc: Fix decision on when to generate an IDLE ACK
net: huawei: hinic: Use devm_kcalloc() instead of devm_kzalloc()
hinic: Avoid some over memory allocation
net: dsa: restrict SMSC_LAN9303_I2C kconfig
net/smc: postpone sk_refcnt increment in connect()
dma-direct: factor out dma_set_{de,en}crypted helpers
dma-direct: don't call dma_set_decrypted for remapped allocations
dma-direct: always leak memory that can't be re-encrypted
dma-direct: don't over-decrypt memory
arm64: dts: rockchip: Move drive-impedance-ohm to emmc phy on rk3399
arm64: dts: mt8192: Fix nor_flash status disable typo
PCI/ACPI: Allow D3 only if Root Port can signal and wake from D3
memory: samsung: exynos5422-dmc: Avoid some over memory allocation
ARM: dts: BCM5301X: update CRU block description
ARM: dts: BCM5301X: Update pin controller node name
ARM: dts: suniv: F1C100: fix watchdog compatible
soc: qcom: smp2p: Fix missing of_node_put() in smp2p_parse_ipc
soc: qcom: smsm: Fix missing of_node_put() in smsm_parse_ipc
PCI: cadence: Fix find_first_zero_bit() limit
PCI: rockchip: Fix find_first_zero_bit() limit
PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup()
PCI: dwc: Fix setting error return on MSI DMA mapping failure
ARM: dts: ci4x10: Adapt to changes in imx6qdl.dtsi regarding fec clocks
soc: qcom: llcc: Add MODULE_DEVICE_TABLE()
KVM: nVMX: Leave most VM-Exit info fields unmodified on failed VM-Entry
KVM: nVMX: Clear IDT vectoring on nested VM-Exit for double/triple fault
crypto: qat - set CIPHER capability for QAT GEN2
crypto: qat - set COMPRESSION capability for QAT GEN2
crypto: qat - set CIPHER capability for DH895XCC
crypto: qat - set COMPRESSION capability for DH895XCC
platform/chrome: cros_ec: fix error handling in cros_ec_register()
ARM: dts: imx6dl-colibri: Fix I2C pinmuxing
platform/chrome: Re-introduce cros_ec_cmd_xfer and use it for ioctls
can: xilinx_can: mark bit timing constants as const
ARM: dts: stm32: Fix PHY post-reset delay on Avenger96
ARM: dts: bcm2835-rpi-zero-w: Fix GPIO line name for Wifi/BT
ARM: dts: bcm2837-rpi-cm3-io3: Fix GPIO line names for SMPS I2C
ARM: dts: bcm2837-rpi-3-b-plus: Fix GPIO line name of power LED
ARM: dts: bcm2835-rpi-b: Fix GPIO line names
misc: ocxl: fix possible double free in ocxl_file_register_afu
crypto: marvell/cesa - ECB does not IV
gpiolib: of: Introduce hook for missing gpio-ranges
pinctrl: bcm2835: implement hook for missing gpio-ranges
arm: mediatek: select arch timer for mt7629
pinctrl/rockchip: support deferring other gpio params
pinctrl: mediatek: mt8195: enable driver on mtk platforms
arm64: dts: qcom: qrb5165-rb5: Fix can-clock node name
Drivers: hv: vmbus: Fix handling of messages with transaction ID of zero
powerpc/fadump: fix PT_LOAD segment for boot memory area
mfd: ipaq-micro: Fix error check return value of platform_get_irq()
scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac()
soc: bcm: Check for NULL return of devm_kzalloc()
arm64: dts: ti: k3-am64-mcu: remove incorrect UART base clock rates
ASoC: sh: rz-ssi: Check return value of pm_runtime_resume_and_get()
ASoC: sh: rz-ssi: Propagate error codes returned from platform_get_irq_byname()
ASoC: sh: rz-ssi: Release the DMA channels in rz_ssi_probe() error path
firmware: arm_scmi: Fix list protocols enumeration in the base protocol
nvdimm: Fix firmware activation deadlock scenarios
nvdimm: Allow overwrite in the presence of disabled dimms
pinctrl: mvebu: Fix irq_of_parse_and_map() return value
drivers/base/node.c: fix compaction sysfs file leak
dax: fix cache flush on PMD-mapped pages
drivers/base/memory: fix an unlikely reference counting issue in __add_memory_block()
firmware: arm_ffa: Fix uuid parameter to ffa_partition_probe
firmware: arm_ffa: Remove incorrect assignment of driver_data
list: introduce list_is_head() helper and re-use it in list.h
list: fix a data-race around ep->rdllist
drm/msm/dpu: fix error check return value of irq_of_parse_and_map()
powerpc/8xx: export 'cpm_setbrg' for modules
pinctrl: renesas: r8a779a0: Fix GPIO function on I2C-capable pins
pinctrl: renesas: core: Fix possible null-ptr-deref in sh_pfc_map_resources()
powerpc/idle: Fix return value of __setup() handler
powerpc/4xx/cpm: Fix return value of __setup() handler
RDMA/hns: Add the detection for CMDQ status in the device initialization process
arm64: dts: marvell: espressobin-ultra: fix SPI-NOR config
arm64: dts: marvell: espressobin-ultra: enable front USB3 port
ASoC: atmel-pdmic: Remove endianness flag on pdmic component
ASoC: atmel-classd: Remove endianness flag on class d component
proc: fix dentry/inode overinstantiating under /proc/${pid}/net
ipc/mqueue: use get_tree_nodev() in mqueue_get_tree()
PCI: imx6: Fix PERST# start-up sequence
tty: fix deadlock caused by calling printk() under tty_port->lock
crypto: sun8i-ss - rework handling of IV
crypto: sun8i-ss - handle zero sized sg
crypto: cryptd - Protect per-CPU resource by disabling BH.
ARM: dts: at91: sama7g5: remove interrupt-parent from gic node
hugetlbfs: fix hugetlbfs_statfs() locking
Input: sparcspkr - fix refcount leak in bbc_beep_probe
PCI/AER: Clear MULTI_ERR_COR/UNCOR_RCV bits
PCI: microchip: Fix potential race in interrupt handling
hwrng: omap3-rom - fix using wrong clk_disable() in omap_rom_rng_runtime_resume()
powerpc/64: Only WARN if __pa()/__va() called with bad addresses
powerpc/perf: Fix the threshold compare group constraint for power10
powerpc/perf: Fix the threshold compare group constraint for power9
macintosh: via-pmu and via-cuda need RTC_LIB
powerpc/xive: Add some error handling code to 'xive_spapr_init()'
powerpc/xive: Fix refcount leak in xive_spapr_init
powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup
mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe()
nfsd: destroy percpu stats counters after reply cache shutdown
mailbox: forward the hrtimer if not queued and under a lock
RDMA/hfi1: Prevent use of lock before it is initialized
KVM: LAPIC: Drop pending LAPIC timer injection when canceling the timer
Input: stmfts - do not leave device disabled in stmfts_input_open
OPP: call of_node_put() on error path in _bandwidth_supported()
f2fs: support fault injection for dquot_initialize()
f2fs: fix to do sanity check on inline_dots inode
f2fs: fix dereference of stale list iterator after loop body
iommu/amd: Enable swiotlb in all cases
iommu/mediatek: Fix 2 HW sharing pgtable issue
iommu/mediatek: Add list_del in mtk_iommu_remove
iommu/mediatek: Remove clk_disable in mtk_iommu_remove
iommu/mediatek: Add mutex for m4u_group and m4u_dom in data
i2c: at91: use dma safe buffers
cpufreq: mediatek: Use module_init and add module_exit
cpufreq: mediatek: Unregister platform device on exit
iommu/arm-smmu-v3-sva: Fix mm use-after-free
MIPS: Loongson: Use hwmon_device_register_with_groups() to register hwmon
iommu/mediatek: Fix NULL pointer dereference when printing dev_name
i2c: at91: Initialize dma_buf in at91_twi_xfer()
dmaengine: idxd: Fix the error handling path in idxd_cdev_register()
NFS: Do not report EINTR/ERESTARTSYS as mapping errors
NFS: fsync() should report filesystem errors over EINTR/ERESTARTSYS
NFS: Don't report ENOSPC write errors twice
NFS: Do not report flush errors in nfs_write_end()
NFS: Don't report errors from nfs_pageio_complete() more than once
NFSv4/pNFS: Do not fail I/O when we fail to allocate the pNFS layout
NFS: Further fixes to the writeback error handling
video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup
dmaengine: stm32-mdma: remove GISR1 register
dmaengine: stm32-mdma: fix chan initialization in stm32_mdma_irq_handler()
iommu/amd: Increase timeout waiting for GA log enablement
i2c: npcm: Fix timeout calculation
i2c: npcm: Correct register access width
i2c: npcm: Handle spurious interrupts
i2c: rcar: fix PM ref counts in probe error paths
perf build: Fix btf__load_from_kernel_by_id() feature check
perf c2c: Use stdio interface if slang is not supported
perf jevents: Fix event syntax error caused by ExtSel
video: fbdev: vesafb: Fix a use-after-free due early fb_info cleanup
NFS: Always initialise fattr->label in nfs_fattr_alloc()
NFS: Create a new nfs_alloc_fattr_with_label() function
NFS: Convert GFP_NOFS to GFP_KERNEL
NFSv4.1 mark qualified async operations as MOVEABLE tasks
f2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count()
f2fs: fix to do sanity check on block address in f2fs_do_zero_range()
f2fs: fix to clear dirty inode in f2fs_evict_inode()
f2fs: fix deadloop in foreground GC
f2fs: don't need inode lock for system hidden quota
f2fs: fix to do sanity check on total_data_blocks
f2fs: don't use casefolded comparison for "." and ".."
f2fs: fix fallocate to use file_modified to update permissions consistently
f2fs: fix to do sanity check for inline inode
objtool: Fix objtool regression on x32 systems
objtool: Fix symbol creation
wifi: mac80211: fix use-after-free in chanctx code
iwlwifi: mvm: fix assert 1F04 upon reconfig
fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
efi: Do not import certificates from UEFI Secure Boot for T2 Macs
bfq: Avoid false marking of bic as stably merged
bfq: Avoid merging queues with different parents
bfq: Split shared queues on move between cgroups
bfq: Update cgroup information before merging bio
bfq: Drop pointless unlock-lock pair
bfq: Remove pointless bfq_init_rq() calls
bfq: Track whether bfq_group is still online
bfq: Get rid of __bio_blkcg() usage
bfq: Make sure bfqg for which we are queueing requests is online
ext4: mark group as trimmed only if it was fully scanned
ext4: fix use-after-free in ext4_rename_dir_prepare
ext4: fix race condition between ext4_write and ext4_convert_inline_data
ext4: fix warning in ext4_handle_inode_extension
ext4: fix bug_on in ext4_writepages
ext4: filter out EXT4_FC_REPLAY from on-disk superblock field s_state
ext4: fix bug_on in __es_tree_search
ext4: verify dir block before splitting it
ext4: avoid cycles in directory h-tree
ACPI: property: Release subnode properties with data nodes
tty: goldfish: Introduce gf_ioread32()/gf_iowrite32()
tracing: Fix potential double free in create_var_ref()
tracing: Initialize integer variable to prevent garbage return value
drm/amdgpu: add beige goby PCI ID
PCI/PM: Fix bridge_d3_blacklist[] Elo i2 overwrite of Gigabyte X299
PCI: qcom: Fix runtime PM imbalance on probe errors
PCI: qcom: Fix unbalanced PHY init on probe errors
staging: r8188eu: prevent ->Ssid overflow in rtw_wx_set_scan()
mm, compaction: fast_find_migrateblock() should return pfn in the target zone
s390/perf: obtain sie_block from the right address
s390/stp: clock_delta should be signed
dlm: fix plock invalid read
dlm: uninitialized variable on error in dlm_listen_for_all()
dlm: fix missing lkb refcount handling
ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock
scsi: dc395x: Fix a missing check on list iterator
scsi: ufs: qcom: Add a readl() to make sure ref_clk gets enabled
landlock: Add clang-format exceptions
landlock: Format with clang-format
selftests/landlock: Add clang-format exceptions
selftests/landlock: Normalize array assignment
selftests/landlock: Format with clang-format
samples/landlock: Add clang-format exceptions
samples/landlock: Format with clang-format
landlock: Fix landlock_add_rule(2) documentation
selftests/landlock: Make tests build with old libc
selftests/landlock: Extend tests for minimal valid attribute size
selftests/landlock: Add tests for unknown access rights
selftests/landlock: Extend access right tests to directories
selftests/landlock: Fully test file rename with "remove" access
selftests/landlock: Add tests for O_PATH
landlock: Change landlock_add_rule(2) argument check ordering
landlock: Change landlock_restrict_self(2) check ordering
selftests/landlock: Test landlock_create_ruleset(2) argument check ordering
landlock: Define access_mask_t to enforce a consistent access mask size
landlock: Reduce the maximum number of layers to 16
landlock: Create find_rule() from unmask_layers()
landlock: Fix same-layer rule unions
drm/amdgpu/cs: make commands with 0 chunks illegal behaviour.
drm/nouveau/subdev/bus: Ratelimit logging for fault errors
drm/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem
drm/nouveau/clk: Fix an incorrect NULL check on list iterator
drm/nouveau/kms/nv50-: atom: fix an incorrect NULL check on list iterator
drm/bridge: analogix_dp: Grab runtime PM reference for DP-AUX
drm/i915/dsi: fix VBT send packet port selection for ICL+
md: fix an incorrect NULL check in does_sb_need_changing
md: fix an incorrect NULL check in md_reload_sb
mtd: cfi_cmdset_0002: Move and rename chip_check/chip_ready/chip_good_for_write
mtd: cfi_cmdset_0002: Use chip_ready() for write on S29GL064N
media: coda: Fix reported H264 profile
media: coda: Add more H264 levels for CODA960
ima: remove the IMA_TEMPLATE Kconfig option
Kconfig: Add option for asm goto w/ tied outputs to workaround clang-13 bug
RDMA/hfi1: Fix potential integer multiplication overflow errors
mmc: core: Allows to override the timeout value for ioctl() path
csky: patch_text: Fixup last cpu should be master
irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x
irqchip: irq-xtensa-mx: fix initial IRQ affinity
thermal: devfreq_cooling: use local ops instead of global ops
cfg80211: declare MODULE_FIRMWARE for regulatory.db
mac80211: upgrade passive scan to active scan on DFS channels after beacon rx
um: Use asm-generic/dma-mapping.h
um: chan_user: Fix winch_tramp() return value
um: Fix out-of-bounds read in LDT setup
kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
ftrace: Clean up hash direct_functions on register failures
ksmbd: fix outstanding credits related bugs
iommu/msm: Fix an incorrect NULL check on list iterator
iommu/dma: Fix iova map result check bug
Revert "mm/cma.c: remove redundant cma_mutex lock"
mm/page_alloc: always attempt to allocate at least one page during bulk allocation
nodemask.h: fix compilation error with GCC12
hugetlb: fix huge_pmd_unshare address update
mm/memremap: fix missing call to untrack_pfn() in pagemap_range()
xtensa/simdisk: fix proc_read_simdisk()
rtl818x: Prevent using not initialized queues
ASoC: rt5514: Fix event generation for "DSP Voice Wake Up" control
carl9170: tx: fix an incorrect use of list iterator
stm: ltdc: fix two incorrect NULL checks on list iterator
bcache: improve multithreaded bch_btree_check()
bcache: improve multithreaded bch_sectors_dirty_init()
bcache: remove incremental dirty sector counting for bch_sectors_dirty_init()
bcache: avoid journal no-space deadlock by reserving 1 journal bucket
serial: pch: don't overwrite xmit->buf[0] by x_char
tilcdc: tilcdc_external: fix an incorrect NULL check on list iterator
gma500: fix an incorrect NULL check on list iterator
arm64: dts: qcom: ipq8074: fix the sleep clock frequency
arm64: tegra: Add missing DFLL reset on Tegra210
clk: tegra: Add missing reset deassertion
phy: qcom-qmp: fix struct clk leak on probe errors
ARM: dts: s5pv210: Remove spi-cs-high on panel in Aries
ARM: pxa: maybe fix gpio lookup tables
SMB3: EBADF/EIO errors in rename/open caused by race condition in smb2_compound_op
docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0
dt-bindings: gpio: altera: correct interrupt-cells
vdpasim: allow to enable a vq repeatedly
blk-iolatency: Fix inflight count imbalances and IO hangs on offline
coresight: core: Fix coresight device probe failure issue
phy: qcom-qmp: fix reset-controller leak on probe errors
net: ipa: fix page free in ipa_endpoint_trans_release()
net: ipa: fix page free in ipa_endpoint_replenish_one()
kseltest/cgroup: Make test_stress.sh work if run interactively
list: test: Add a test for list_is_head()
Revert "random: use static branch for crng_ready()"
staging: r8188eu: delete rtw_wx_read/write32()
RDMA/hns: Remove the num_cqc_timer variable
RDMA/rxe: Generate a completion for unsupported/invalid opcode
MIPS: IP27: Remove incorrect `cpu_has_fpu' override
MIPS: IP30: Remove incorrect `cpu_has_fpu' override
ext4: only allow test_dummy_encryption when supported
interconnect: qcom: sc7180: Drop IP0 interconnects
interconnect: qcom: icc-rpmh: Add BCMs to commit list in pre_aggregate
fs: add two trivial lookup helpers
exportfs: support idmapped mounts
fs/ntfs3: Fix invalid free in log_replay
md: Don't set mddev private to NULL in raid0 pers->free
md: fix double free of io_acct_set bioset
md: bcache: check the return value of kzalloc() in detached_dev_do_request()
pinctrl/rockchip: support setting input-enable param
block: fix bio_clone_blkg_association() to associate with proper blkcg_gq
Linux 5.15.46
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7b65df29c22a01b81a94cd844867a18e73098a15
|
||
Jchao Sun
|
bafbc134f5 |
writeback: Fix inode->i_io_list not be protected by inode->i_lock error
commit 10e14073107dd0b6d97d9516a02845a8e501c2c9 upstream. Commit |
||
|
Greg Kroah-Hartman
|
09c8c3ffe1 |
Merge 5.15.41 into android-5.15
Changes in 5.15.41 batman-adv: Don't skb_split skbuffs with frag_list iwlwifi: iwl-dbg: Use del_timer_sync() before freeing hwmon: (tmp401) Add OF device ID table mac80211: Reset MBSSID parameters upon connection net: Fix features skip in for_each_netdev_feature() net: mscc: ocelot: fix last VCAP IS1/IS2 filter persisting in hardware when deleted net: mscc: ocelot: fix VCAP IS2 filters matching on both lookups net: mscc: ocelot: restrict tc-trap actions to VCAP IS2 lookup 0 net: mscc: ocelot: avoid corrupting hardware counters when moving VCAP filters fbdev: simplefb: Cleanup fb_info in .fb_destroy rather than .remove fbdev: efifb: Cleanup fb_info in .fb_destroy rather than .remove fbdev: vesafb: Cleanup fb_info in .fb_destroy rather than .remove platform/surface: aggregator: Fix initialization order when compiling as builtin module ice: Fix race during aux device (un)plugging ice: fix PTP stale Tx timestamps cleanup ipv4: drop dst in multicast routing path drm/nouveau: Fix a potential theorical leak in nouveau_get_backlight_name() netlink: do not reset transport header in netlink_recvmsg() net: chelsio: cxgb4: Avoid potential negative array offset fbdev: efifb: Fix a use-after-free due early fb_info cleanup sfc: Use swap() instead of open coding it net: sfc: fix memory leak due to ptp channel mac80211_hwsim: call ieee80211_tx_prepare_skb under RCU protection nfs: fix broken handling of the softreval mount option ionic: fix missing pci_release_regions() on error in ionic_probe() dim: initialize all struct fields hwmon: (ltq-cputemp) restrict it to SOC_XWAY procfs: prevent unprivileged processes accessing fdinfo dir selftests: vm: Makefile: rename TARGETS to VMTARGETS arm64: vdso: fix makefile dependency on vdso.so virtio: fix virtio transitional ids s390/ctcm: fix variable dereferenced before check s390/ctcm: fix potential memory leak s390/lcs: fix variable dereferenced before check net/sched: act_pedit: really ensure the skb is writable net: ethernet: mediatek: ppe: fix wrong size passed to memset() net: bcmgenet: Check for Wake-on-LAN interrupt probe deferral drm/vc4: hdmi: Fix build error for implicit function declaration net: dsa: bcm_sf2: Fix Wake-on-LAN with mac_link_down() net/smc: non blocking recvmsg() return -EAGAIN when no data and signal_pending net: sfc: ef10: fix memory leak in efx_ef10_mtd_probe() tls: Fix context leak on tls_device_down drm/vmwgfx: Fix fencing on SVGAv3 gfs2: Fix filesystem block deallocation for short writes hwmon: (f71882fg) Fix negative temperature RDMA/irdma: Fix deadlock in irdma_cleanup_cm_core() iommu: arm-smmu: disable large page mappings for Nvidia arm-smmu ASoC: max98090: Reject invalid values in custom control put() ASoC: max98090: Generate notifications on changes for custom control ASoC: ops: Validate input values in snd_soc_put_volsw_range() s390: disable -Warray-bounds ASoC: SOF: Fix NULL pointer exception in sof_pci_probe callback net: emaclite: Don't advertise 1000BASE-T and do auto negotiation net: sfp: Add tx-fault workaround for Huawei MA5671A SFP ONT secure_seq: use the 64 bits of the siphash for port offset calculation tcp: use different parts of the port_offset for index and offset tcp: resalt the secret every 10 seconds tcp: add small random increments to the source port tcp: dynamically allocate the perturb table used by source ports tcp: increase source port perturb table to 2^16 tcp: drop the hash_32() part from the index calculation interconnect: Restore sync state by ignoring ipa-virt in provider count firmware_loader: use kernel credentials when reading firmware KVM: PPC: Book3S PR: Enable MSR_DR for switch_mmu_context() usb: xhci-mtk: fix fs isoc's transfer error x86/mm: Fix marking of unused sub-pmd ranges tty/serial: digicolor: fix possible null-ptr-deref in digicolor_uart_probe() tty: n_gsm: fix buffer over-read in gsm_dlci_data() tty: n_gsm: fix mux activation issues in gsm_config() usb: cdc-wdm: fix reading stuck on device close usb: typec: tcpci: Don't skip cleanup in .remove() on error usb: typec: tcpci_mt6360: Update for BMC PHY setting USB: serial: pl2303: add device id for HP LM930 Display USB: serial: qcserial: add support for Sierra Wireless EM7590 USB: serial: option: add Fibocom L610 modem USB: serial: option: add Fibocom MA510 modem slimbus: qcom: Fix IRQ check in qcom_slim_probe fsl_lpuart: Don't enable interrupts too early serial: 8250_mtk: Fix UART_EFR register address serial: 8250_mtk: Fix register address for XON/XOFF character ceph: fix setting of xattrs on async created inodes Revert "mm/memory-failure.c: skip huge_zero_page in memory_failure()" mm/huge_memory: do not overkill when splitting huge_zero_page drm/vmwgfx: Disable command buffers on svga3 without gbobjects drm/nouveau/tegra: Stop using iommu_present() i40e: i40e_main: fix a missing check on list iterator net: atlantic: always deep reset on pm op, fixing up my null deref regression net: phy: Fix race condition on link status change writeback: Avoid skipping inode writeback cgroup/cpuset: Remove cpus_allowed/mems_allowed setup in cpuset_init_smp() arm[64]/memremap: don't abuse pfn_valid() to ensure presence of linear map net: phy: micrel: Do not use kszphy_suspend/resume for KSZ8061 net: phy: micrel: Pass .probe for KS8737 SUNRPC: Ensure that the gssproxy client can start in a connected state drm/vmwgfx: Initialize drm_mode_fb_cmd2 Revert "drm/amd/pm: keep the BACO feature enabled for suspend" dma-buf: call dma_buf_stats_setup after dmabuf is in valid list mm/hwpoison: use pr_err() instead of dump_page() in get_any_page() SUNRPC: Ensure we flush any closed sockets before xs_xprt_free() ping: fix address binding wrt vrf usb: gadget: uvc: rename function to be more consistent usb: gadget: uvc: allow for application to cleanly shutdown Linux 5.15.41 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Iefaba949bb19dadd6d3c84f9ab5d68d214ccea9e |
||
Zhihao Cheng
|
9bc601c664 |
fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
commit 68f4c6eba70df70a720188bce95c85570ddfcc87 upstream. Commit |
||
Jing Xia
|
80b6fb3d18 |
writeback: Avoid skipping inode writeback
commit 846a3351ddfe4a86eede4bb26a205c3f38ef84d3 upstream.
We have run into an issue that a task gets stuck in
balance_dirty_pages_ratelimited() when perform I/O stress testing.
The reason we observed is that an I_DIRTY_PAGES inode with lots
of dirty pages is in b_dirty_time list and standard background
writeback cannot writeback the inode.
After studing the relevant code, the following scenario may lead
to the issue:
task1 task2
----- -----
fuse_flush
write_inode_now //in b_dirty_time
writeback_single_inode
__writeback_single_inode
fuse_write_end
filemap_dirty_folio
__xa_set_mark:PAGECACHE_TAG_DIRTY
lock inode->i_lock
if mapping tagged PAGECACHE_TAG_DIRTY
inode->i_state |= I_DIRTY_PAGES
unlock inode->i_lock
__mark_inode_dirty:I_DIRTY_PAGES
lock inode->i_lock
-was dirty,inode stays in
-b_dirty_time
unlock inode->i_lock
if(!(inode->i_state & I_DIRTY_All))
-not true,so nothing done
This patch moves the dirty inode to b_dirty list when the inode
currently is not queued in b_io or b_more_io list at the end of
writeback_single_inode.
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
CC: stable@vger.kernel.org
Fixes:
|
||
|
Greg Kroah-Hartman
|
0a77fca3aa |
ANDROID: GKI: set vfs-only exports into their own namespace
We have namespaces, so use them for all vfs-exported namespaces so that filesystems can use them, but not anything else. Some in-kernel drivers that do direct filesystem accesses (because they serve up files) are also allowed access to these symbols to keep 'make allmodconfig' builds working properly, but it is not needed for Android kernel images. Bug: 157965270 Bug: 210074446 Cc: Matthias Maennich <maennich@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Iaf6140baf3a18a516ab2d5c3966235c42f3f70de |
||
Linus Torvalds
|
14726903c8 |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "173 patches. Subsystems affected by this series: ia64, ocfs2, block, and mm (debug, pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap, bootmem, sparsemem, vmalloc, kasan, pagealloc, memory-failure, hugetlb, userfaultfd, vmscan, compaction, mempolicy, memblock, oom-kill, migration, ksm, percpu, vmstat, and madvise)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (173 commits) mm/madvise: add MADV_WILLNEED to process_madvise() mm/vmstat: remove unneeded return value mm/vmstat: simplify the array size calculation mm/vmstat: correct some wrong comments mm/percpu,c: remove obsolete comments of pcpu_chunk_populated() selftests: vm: add COW time test for KSM pages selftests: vm: add KSM merging time test mm: KSM: fix data type selftests: vm: add KSM merging across nodes test selftests: vm: add KSM zero page merging test selftests: vm: add KSM unmerge test selftests: vm: add KSM merge test mm/migrate: correct kernel-doc notation mm: wire up syscall process_mrelease mm: introduce process_mrelease system call memblock: make memblock_find_in_range method private mm/mempolicy.c: use in_task() in mempolicy_slab_node() mm/mempolicy: unify the create() func for bind/interleave/prefer-many policies mm/mempolicy: advertise new MPOL_PREFERRED_MANY mm/hugetlb: add support for mempolicy MPOL_PREFERRED_MANY ... |
||
Shakeel Butt
|
7490a2d248 |
writeback: memcg: simplify cgroup_writeback_by_id
Currently cgroup_writeback_by_id calls mem_cgroup_wb_stats() to get dirty pages for a memcg. However mem_cgroup_wb_stats() does a lot more than just get the number of dirty pages. Just directly get the number of dirty pages instead of calling mem_cgroup_wb_stats(). Also cgroup_writeback_by_id() is only called for best-effort dirty flushing, so remove the unused 'nr' parameter and no need to explicitly flush memcg stats. Link: https://lkml.kernel.org/r/20210722182627.2267368-1-shakeelb@google.com Signed-off-by: Shakeel Butt <shakeelb@google.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Tejun Heo <tj@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Jan Kara
|
fee468fdf4 |
writeback: reliably update bandwidth estimation
Currently we trigger writeback bandwidth estimation from balance_dirty_pages() and from wb_writeback(). However neither of these need to trigger when the system is relatively idle and writeback is triggered e.g. from fsync(2). Make sure writeback estimates happen reliably by triggering them from do_writepages(). Link: https://lkml.kernel.org/r/20210713104716.22868-2-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Cc: Michael Stapelberg <stapelberg+linux@google.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Jan Kara
|
633a2abb9e |
writeback: track number of inodes under writeback
Patch series "writeback: Fix bandwidth estimates", v4. Fix estimate of writeback throughput when device is not fully busy doing writeback. Michael Stapelberg has reported that such workload (e.g. generated by linking) tends to push estimated throughput down to 0 and as a result writeback on the device is practically stalled. The first three patches fix the reported issue, the remaining two patches are unrelated cleanups of problems I've noticed when reading the code. This patch (of 4): Track number of inodes under writeback for each bdi_writeback structure. We will use this to decide whether wb does any IO and so we can estimate its writeback throughput. In principle we could use number of pages under writeback (WB_WRITEBACK counter) for this however normal percpu counter reads are too inaccurate for our purposes and summing the counter is too expensive. Link: https://lkml.kernel.org/r/20210713104519.16394-1-jack@suse.cz Link: https://lkml.kernel.org/r/20210713104716.22868-1-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Michael Stapelberg <stapelberg+linux@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Josef Bacik
|
5662c967c6 |
fs: kill sync_inode
Now that all users of sync_inode() have been deleted, remove sync_inode(). Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
||
Roman Gushchin
|
593311e85b |
writeback, cgroup: do not reparent dax inodes
The inode switching code is not suited for dax inodes. An attempt to
switch a dax inode to a parent writeback structure (as a part of a
writeback cleanup procedure) results in a panic like this:
run fstests generic/270 at 2021-07-15 05:54:02
XFS (pmem0p2): EXPERIMENTAL big timestamp feature in use. Use at your own risk!
XFS (pmem0p2): DAX enabled. Warning: EXPERIMENTAL, use at your own risk
XFS (pmem0p2): EXPERIMENTAL inode btree counters feature in use. Use at your own risk!
XFS (pmem0p2): Mounting V5 Filesystem
XFS (pmem0p2): Ending clean mount
XFS (pmem0p2): Quotacheck needed: Please wait.
XFS (pmem0p2): Quotacheck: Done.
XFS (pmem0p2): xlog_verify_grant_tail: space > BBTOB(tail_blocks)
XFS (pmem0p2): xlog_verify_grant_tail: space > BBTOB(tail_blocks)
XFS (pmem0p2): xlog_verify_grant_tail: space > BBTOB(tail_blocks)
BUG: unable to handle page fault for address: 0000000005b0f669
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
CPU: 13 PID: 10479 Comm: kworker/13:16 Not tainted 5.14.0-rc1-master-8096acd7442e+ #8
Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 09/13/2016
Workqueue: inode_switch_wbs inode_switch_wbs_work_fn
RIP: 0010:inode_do_switch_wbs+0xaf/0x470
Code: 00 30 0f 85 c1 03 00 00 0f 1f 44 00 00 31 d2 48 c7 c6 ff ff ff ff 48 8d 7c 24 08 e8 eb 49 1a 00 48 85 c0 74 4a bb ff ff ff ff <48> 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 00 a8 08 0f 85
RSP: 0018:ffff9c66691abdc8 EFLAGS: 00010002
RAX: 0000000005b0f661 RBX: 00000000ffffffff RCX: ffff89e6a21382b0
RDX: 0000000000000001 RSI: ffff89e350230248 RDI: ffffffffffffffff
RBP: ffff89e681d19400 R08: 0000000000000000 R09: 0000000000000228
R10: ffffffffffffffff R11: ffffffffffffffc0 R12: ffff89e6a2138130
R13: ffff89e316af7400 R14: ffff89e316af6e78 R15: ffff89e6a21382b0
FS: 0000000000000000(0000) GS:ffff89ee5fb40000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000005b0f669 CR3: 0000000cb2410004 CR4: 00000000001706e0
Call Trace:
inode_switch_wbs_work_fn+0xb6/0x2a0
process_one_work+0x1e6/0x380
worker_thread+0x53/0x3d0
kthread+0x10f/0x130
ret_from_fork+0x22/0x30
Modules linked in: xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 nft_compat nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_counter nf_tables nfnetlink bridge stp llc rfkill sunrpc intel_rapl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel ipmi_ssif kvm mgag200 i2c_algo_bit iTCO_wdt irqbypass drm_kms_helper iTCO_vendor_support acpi_ipmi rapl syscopyarea sysfillrect intel_cstate ipmi_si sysimgblt ioatdma dax_pmem_compat fb_sys_fops ipmi_devintf device_dax i2c_i801 pcspkr intel_uncore hpilo nd_pmem cec dax_pmem_core dca i2c_smbus acpi_tad lpc_ich ipmi_msghandler acpi_power_meter drm fuse xfs libcrc32c sd_mod t10_pi crct10dif_pclmul crc32_pclmul crc32c_intel tg3 ghash_clmulni_intel serio_raw hpsa hpwdt scsi_transport_sas wmi dm_mirror dm_region_hash dm_log dm_mod
CR2: 0000000005b0f669
---[ end trace ed2105faff8384f3 ]---
RIP: 0010:inode_do_switch_wbs+0xaf/0x470
Code: 00 30 0f 85 c1 03 00 00 0f 1f 44 00 00 31 d2 48 c7 c6 ff ff ff ff 48 8d 7c 24 08 e8 eb 49 1a 00 48 85 c0 74 4a bb ff ff ff ff <48> 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 00 a8 08 0f 85
RSP: 0018:ffff9c66691abdc8 EFLAGS: 00010002
RAX: 0000000005b0f661 RBX: 00000000ffffffff RCX: ffff89e6a21382b0
RDX: 0000000000000001 RSI: ffff89e350230248 RDI: ffffffffffffffff
RBP: ffff89e681d19400 R08: 0000000000000000 R09: 0000000000000228
R10: ffffffffffffffff R11: ffffffffffffffc0 R12: ffff89e6a2138130
R13: ffff89e316af7400 R14: ffff89e316af6e78 R15: ffff89e6a21382b0
FS: 0000000000000000(0000) GS:ffff89ee5fb40000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000005b0f669 CR3: 0000000cb2410004 CR4: 00000000001706e0
Kernel panic - not syncing: Fatal exception
Kernel Offset: 0x15200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
---[ end Kernel panic - not syncing: Fatal exception ]---
The crash happens on an attempt to iterate over attached pagecache pages
and check the dirty flag: a dax inode's xarray contains pfn's instead of
generic struct page pointers.
This happens for DAX and not for other kinds of non-page entries in the
inodes because it's a tagged iteration, and shadow/swap entries are
never tagged; only DAX entries get tagged.
Fix the problem by bailing out (with the false return value) of
inode_prepare_sbs_switch() if a dax inode is passed.
[willy@infradead.org: changelog addition]
Link: https://lkml.kernel.org/r/20210719171350.3876830-1-guro@fb.com
Fixes:
|
||
|
Linus Torvalds
|
911a2997a5 |
Merge tag 'fs_for_v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull misc fs updates from Jan Kara: "The new quotactl_fd() syscall (remake of quotactl_path() syscall that got introduced & disabled in 5.13 cycle), and couple of udf, reiserfs, isofs, and writeback fixes and cleanups" * tag 'fs_for_v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: writeback: fix obtain a reference to a freeing memcg css quota: remove unnecessary oom message isofs: remove redundant continue statement quota: Wire up quotactl_fd syscall quota: Change quotactl_path() systcall to an fd-based one reiserfs: Remove unneed check in reiserfs_write_full_page() udf: Fix NULL pointer dereference in udf_symlink function reiserfs: add check for invalid 1st journal block |
||
|
Linus Torvalds
|
df668a5fe4 |
Merge tag 'for-5.14/block-2021-06-29' of git://git.kernel.dk/linux-block
Pull core block updates from Jens Axboe: - disk events cleanup (Christoph) - gendisk and request queue allocation simplifications (Christoph) - bdev_disk_changed cleanups (Christoph) - IO priority improvements (Bart) - Chained bio completion trace fix (Edward) - blk-wbt fixes (Jan) - blk-wbt enable/disable fix (Zhang) - Scheduler dispatch improvements (Jan, Ming) - Shared tagset scheduler improvements (John) - BFQ updates (Paolo, Luca, Pietro) - BFQ lock inversion fix (Jan) - Documentation improvements (Kir) - CLONE_IO block cgroup fix (Tejun) - Remove of ancient and deprecated block dump feature (zhangyi) - Discard merge fix (Ming) - Misc fixes or followup fixes (Colin, Damien, Dan, Long, Max, Thomas, Yang) * tag 'for-5.14/block-2021-06-29' of git://git.kernel.dk/linux-block: (129 commits) block: fix discard request merge block/mq-deadline: Remove a WARN_ON_ONCE() call blk-mq: update hctx->dispatch_busy in case of real scheduler blk: Fix lock inversion between ioc lock and bfqd lock bfq: Remove merged request already in bfq_requests_merged() block: pass a gendisk to bdev_disk_changed block: move bdev_disk_changed block: add the events* attributes to disk_attrs block: move the disk events code to a separate file block: fix trace completion for chained bio block/partitions/msdos: Fix typo inidicator -> indicator block, bfq: reset waker pointer with shared queues block, bfq: check waker only for queues with no in-flight I/O block, bfq: avoid delayed merge of async queues block, bfq: boost throughput by extending queue-merging times block, bfq: consider also creation time in delayed stable merge block, bfq: fix delayed stable merge check block, bfq: let also stably merged queues enjoy weight raising blk-wbt: make sure throttle is enabled properly blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled() ... |
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Roman Gushchin
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c22d70a162 |
writeback, cgroup: release dying cgwbs by switching attached inodes
Asynchronously try to release dying cgwbs by switching attached inodes to the nearest living ancestor wb. It helps to get rid of per-cgroup writeback structures themselves and of pinned memory and block cgroups, which are significantly larger structures (mostly due to large per-cpu statistics data). This prevents memory waste and helps to avoid different scalability problems caused by large piles of dying cgroups. Reuse the existing mechanism of inode switching used for foreign inode detection. To speed things up batch up to 115 inode switching in a single operation (the maximum number is selected so that the resulting struct inode_switch_wbs_context can fit into 1024 bytes). Because every switching consists of two steps divided by an RCU grace period, it would be too slow without batching. Please note that the whole batch counts as a single operation (when increasing/decreasing isw_nr_in_flight). This allows to keep umounting working (flush the switching queue), however prevents cleanups from consuming the whole switching quota and effectively blocking the frn switching. A cgwb cleanup operation can fail due to different reasons (e.g. not enough memory, the cgwb has an in-flight/pending io, an attached inode in a wrong state, etc). In this case the next scheduled cleanup will make a new attempt. An attempt is made each time a new cgwb is offlined (in other words a memcg and/or a blkcg is deleted by a user). In the future an additional attempt scheduled by a timer can be implemented. [guro@fb.com: replace open-coded "115" with arithmetic] Link: https://lkml.kernel.org/r/YMEcSBcq/VXMiPPO@carbon.dhcp.thefacebook.com [guro@fb.com: add smp_mb() to inode_prepare_wbs_switch()] Link: https://lkml.kernel.org/r/YMFa+guFw7OFjf3X@carbon.dhcp.thefacebook.com [willy@infradead.org: fix documentation] Link: https://lkml.kernel.org/r/20210615200242.1716568-2-willy@infradead.org Link: https://lkml.kernel.org/r/20210608230225.2078447-9-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Dennis Zhou <dennis@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dave Chinner <dchinner@redhat.com> Cc: Jan Kara <jack@suse.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
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f5fbe6b7ad |
writeback, cgroup: support switching multiple inodes at once
Currently only a single inode can be switched to another writeback structure at once. That means to switch an inode a separate inode_switch_wbs_context structure must be allocated, and a separate rcu callback and work must be scheduled. It's fine for the existing ad-hoc switching, which is not happening that often, but sub-optimal for massive switching required in order to release a writeback structure. To prepare for it, let's add a support for switching multiple inodes at once. Instead of containing a single inode pointer, inode_switch_wbs_context will contain a NULL-terminated array of inode pointers. inode_do_switch_wbs() will be called for each inode. To optimize the locking bdi->wb_switch_rwsem, old_wb's and new_wb's list_locks will be acquired and released only once altogether for all inodes. wb_wakeup() will be also be called only once. Instead of calling wb_put(old_wb) after each successful switch, wb_put_many() is introduced and used. Link: https://lkml.kernel.org/r/20210608230225.2078447-8-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Acked-by: Tejun Heo <tj@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Dennis Zhou <dennis@kernel.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dave Chinner <dchinner@redhat.com> Cc: Jan Kara <jack@suse.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
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72d4512e9c |
writeback, cgroup: split out the functional part of inode_switch_wbs_work_fn()
Split out the functional part of the inode_switch_wbs_work_fn() function as inode_do switch_wbs() to reuse it later for switching inodes attached to dying cgwbs. This commit doesn't bring any functional changes. Link: https://lkml.kernel.org/r/20210608230225.2078447-7-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Dennis Zhou <dennis@kernel.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dave Chinner <dchinner@redhat.com> Cc: Jan Kara <jack@suse.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
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f3b6a6df38 |
writeback, cgroup: keep list of inodes attached to bdi_writeback
Currently there is no way to iterate over inodes attached to a specific cgwb structure. It limits the ability to efficiently reclaim the writeback structure itself and associated memory and block cgroup structures without scanning all inodes belonging to a sb, which can be prohibitively expensive. While dirty/in-active-writeback an inode belongs to one of the bdi_writeback's io lists: b_dirty, b_io, b_more_io and b_dirty_time. Once cleaned up, it's removed from all io lists. So the inode->i_io_list can be reused to maintain the list of inodes, attached to a bdi_writeback structure. This patch introduces a new wb->b_attached list, which contains all inodes which were dirty at least once and are attached to the given cgwb. Inodes attached to the root bdi_writeback structures are never placed on such list. The following patch will use this list to try to release cgwbs structures more efficiently. Link: https://lkml.kernel.org/r/20210608230225.2078447-6-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Suggested-by: Jan Kara <jack@suse.cz> Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Dennis Zhou <dennis@kernel.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dave Chinner <dchinner@redhat.com> Cc: Jan Kara <jack@suse.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
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29264d92a0 |
writeback, cgroup: switch to rcu_work API in inode_switch_wbs()
Inode's wb switching requires two steps divided by an RCU grace period. It's currently implemented as an RCU callback inode_switch_wbs_rcu_fn(), which schedules inode_switch_wbs_work_fn() as a work. Switching to the rcu_work API allows to do the same in a cleaner and slightly shorter form. Link: https://lkml.kernel.org/r/20210608230225.2078447-5-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Dennis Zhou <dennis@kernel.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dave Chinner <dchinner@redhat.com> Cc: Jan Kara <jack@suse.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
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8826ee4fe7 |
writeback, cgroup: increment isw_nr_in_flight before grabbing an inode
isw_nr_in_flight is used to determine whether the inode switch queue should be flushed from the umount path. Currently it's increased after grabbing an inode and even scheduling the switch work. It means the umount path can walk past cleanup_offline_cgwb() with active inode references, which can result in a "Busy inodes after unmount." message and use-after-free issues (with inode->i_sb which gets freed). Fix it by incrementing isw_nr_in_flight before doing anything with the inode and decrementing in the case when switching wasn't scheduled. The problem hasn't yet been seen in the real life and was discovered by Jan Kara by looking into the code. Link: https://lkml.kernel.org/r/20210608230225.2078447-4-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Suggested-by: Jan Kara <jack@suse.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dave Chinner <dchinner@redhat.com> Cc: Dennis Zhou <dennis@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
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592fa00218 |
writeback, cgroup: add smp_mb() to cgroup_writeback_umount()
A full memory barrier is required between clearing SB_ACTIVE flag in generic_shutdown_super() and checking isw_nr_in_flight in cgroup_writeback_umount(), otherwise a new switch operation might be scheduled after atomic_read(&isw_nr_in_flight) returned 0. This would result in a non-flushed isw_wq, and a potential crash. The problem hasn't yet been seen in the real life and was discovered by Jan Kara by looking into the code. Link: https://lkml.kernel.org/r/20210608230225.2078447-3-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Suggested-by: Jan Kara <jack@suse.cz> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dave Chinner <dchinner@redhat.com> Cc: Dennis Zhou <dennis@kernel.org> Cc: Jan Kara <jack@suse.com> Cc: Tejun Heo <tj@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
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4ade5867b4 |
writeback, cgroup: do not switch inodes with I_WILL_FREE flag
Patch series "cgroup, blkcg: prevent dirty inodes to pin dying memory cgroups", v9. When an inode is getting dirty for the first time it's associated with a wb structure (see __inode_attach_wb()). It can later be switched to another wb (if e.g. some other cgroup is writing a lot of data to the same inode), but otherwise stays attached to the original wb until being reclaimed. The problem is that the wb structure holds a reference to the original memory and blkcg cgroups. So if an inode has been dirty once and later is actively used in read-only mode, it has a good chance to pin down the original memory and blkcg cgroups forever. This is often the case with services bringing data for other services, e.g. updating some rpm packages. In the real life it becomes a problem due to a large size of the memcg structure, which can easily be 1000x larger than an inode. Also a really large number of dying cgroups can raise different scalability issues, e.g. making the memory reclaim costly and less effective. To solve the problem inodes should be eventually detached from the corresponding writeback structure. It's inefficient to do it after every writeback completion. Instead it can be done whenever the original memory cgroup is offlined and writeback structure is getting killed. Scanning over a (potentially long) list of inodes and detach them from the writeback structure can take quite some time. To avoid scanning all inodes, attached inodes are kept on a new list (b_attached). To make it less noticeable to a user, the scanning and switching is performed from a work context. Big thanks to Jan Kara, Dennis Zhou, Hillf Danton and Tejun Heo for their ideas and contribution to this patchset. This patch (of 8): If an inode's state has I_WILL_FREE flag set, the inode will be freed soon, so there is no point in trying to switch the inode to a different cgwb. I_WILL_FREE was ignored since the introduction of the inode switching, so it looks like it doesn't lead to any noticeable issues for a user. This is why the patch is not intended for a stable backport. Link: https://lkml.kernel.org/r/20210608230225.2078447-1-guro@fb.com Link: https://lkml.kernel.org/r/20210608230225.2078447-2-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Suggested-by: Jan Kara <jack@suse.cz> Acked-by: Tejun Heo <tj@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Dennis Zhou <dennis@kernel.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dave Chinner <dchinner@redhat.com> Cc: Jan Kara <jack@suse.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Muchun Song
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8b0ed8443a |
writeback: fix obtain a reference to a freeing memcg css
The caller of wb_get_create() should pin the memcg, because
wb_get_create() relies on this guarantee. The rcu read lock
only can guarantee that the memcg css returned by css_from_id()
cannot be released, but the reference of the memcg can be zero.
rcu_read_lock()
memcg_css = css_from_id()
wb_get_create(memcg_css)
cgwb_create(memcg_css)
// css_get can change the ref counter from 0 back to 1
css_get(memcg_css)
rcu_read_unlock()
Fix it by holding a reference to the css before calling
wb_get_create(). This is not a problem I encountered in the
real world. Just the result of a code review.
Fixes:
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zhangyi (F)
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12e0613715 |
block_dump: remove block_dump feature in mark_inode_dirty()
block_dump is an old debugging interface, one of it's functions is used to print the information about who write which file on disk. If we enable block_dump through /proc/sys/vm/block_dump and turn on debug log level, we can gather information about write process name, target file name and disk from kernel message. This feature is realized in block_dump___mark_inode_dirty(), it print above information into kernel message directly when marking inode dirty, so it is noisy and can easily trigger log storm. At the same time, get the dentry refcount is also not safe, we found it will lead to deadlock on ext4 file system with data=journal mode. After tracepoints has been introduced into the kernel, we got a tracepoint in __mark_inode_dirty(), which is a better replacement of block_dump___mark_inode_dirty(). The only downside is that it only trace the inode number and not a file name, but it probably doesn't matter because the original printed file name in block_dump is not accurate in some cases, and we can still find it through the inode number and device id. So this patch delete the dirting inode part of block_dump feature. Signed-off-by: zhangyi (F) <yi.zhang@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20210313030146.2882027-2-yi.zhang@huawei.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Eric Biggers
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da0c4c60d8 |
fs: improve comments for writeback_single_inode()
Some comments for writeback_single_inode() and __writeback_single_inode() are outdated or not very helpful, especially with regards to writeback list handling. Update them. Link: https://lore.kernel.org/r/20210112190253.64307-10-ebiggers@kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jan Kara <jack@suse.cz> |
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Eric Biggers
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83dc881d67 |
fs: drop redundant check from __writeback_single_inode()
wbc->for_sync implies wbc->sync_mode == WB_SYNC_ALL, so there's no need to check for both. Just check for WB_SYNC_ALL. Link: https://lore.kernel.org/r/20210112190253.64307-9-ebiggers@kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jan Kara <jack@suse.cz> |
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Eric Biggers
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35d14f278e |
fs: clean up __mark_inode_dirty() a bit
Improve some comments, and don't bother checking for the I_DIRTY_TIME flag in the case where we just cleared it. Also, warn if I_DIRTY_TIME and I_DIRTY_PAGES are passed to __mark_inode_dirty() at the same time, as this case isn't handled. Link: https://lore.kernel.org/r/20210112190253.64307-8-ebiggers@kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jan Kara <jack@suse.cz> |
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Eric Biggers
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a38ed483a7 |
fs: pass only I_DIRTY_INODE flags to ->dirty_inode
->dirty_inode is now only called when I_DIRTY_INODE (I_DIRTY_SYNC and/or I_DIRTY_DATASYNC) is set. However it may still be passed other dirty flags at the same time, provided that these other flags happened to be passed to __mark_inode_dirty() at the same time as I_DIRTY_INODE. This doesn't make sense because there is no reason for filesystems to care about these extra flags. Nor are filesystems notified about all updates to these other flags. Therefore, mask the flags before passing them to ->dirty_inode. Also properly document ->dirty_inode in vfs.rst. Link: https://lore.kernel.org/r/20210112190253.64307-7-ebiggers@kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jan Kara <jack@suse.cz> |
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Eric Biggers
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e2728c5621 |
fs: don't call ->dirty_inode for lazytime timestamp updates
There is no need to call ->dirty_inode for lazytime timestamp updates (i.e. for __mark_inode_dirty(I_DIRTY_TIME)), since by the definition of lazytime, filesystems must ignore these updates. Filesystems only need to care about the updated timestamps when they expire. Therefore, only call ->dirty_inode when I_DIRTY_INODE is set. Based on a patch from Christoph Hellwig: https://lore.kernel.org/r/20200325122825.1086872-4-hch@lst.de Link: https://lore.kernel.org/r/20210112190253.64307-6-ebiggers@kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jan Kara <jack@suse.cz> |
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Eric Biggers
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1e249cb5b7 |
fs: fix lazytime expiration handling in __writeback_single_inode()
When lazytime is enabled and an inode is being written due to its in-memory updated timestamps having expired, either due to a sync() or syncfs() system call or due to dirtytime_expire_interval having elapsed, the VFS needs to inform the filesystem so that the filesystem can copy the inode's timestamps out to the on-disk data structures. This is done by __writeback_single_inode() calling mark_inode_dirty_sync(), which then calls ->dirty_inode(I_DIRTY_SYNC). However, this occurs after __writeback_single_inode() has already cleared the dirty flags from ->i_state. This causes two bugs: - mark_inode_dirty_sync() redirties the inode, causing it to remain dirty. This wastefully causes the inode to be written twice. But more importantly, it breaks cases where sync_filesystem() is expected to clean dirty inodes. This includes the FS_IOC_REMOVE_ENCRYPTION_KEY ioctl (as reported at https://lore.kernel.org/r/20200306004555.GB225345@gmail.com), as well as possibly filesystem freezing (freeze_super()). - Since ->i_state doesn't contain I_DIRTY_TIME when ->dirty_inode() is called from __writeback_single_inode() for lazytime expiration, xfs_fs_dirty_inode() ignores the notification. (XFS only cares about lazytime expirations, and it assumes that i_state will contain I_DIRTY_TIME during those.) Therefore, lazy timestamps aren't persisted by sync(), syncfs(), or dirtytime_expire_interval on XFS. Fix this by moving the call to mark_inode_dirty_sync() to earlier in __writeback_single_inode(), before the dirty flags are cleared from i_state. This makes filesystems be properly notified of the timestamp expiration, and it avoids incorrectly redirtying the inode. This fixes xfstest generic/580 (which tests FS_IOC_REMOVE_ENCRYPTION_KEY) when run on ext4 or f2fs with lazytime enabled. It also fixes the new lazytime xfstest I've proposed, which reproduces the above-mentioned XFS bug (https://lore.kernel.org/r/20210105005818.92978-1-ebiggers@kernel.org). Alternatively, we could call ->dirty_inode(I_DIRTY_SYNC) directly. But due to the introduction of I_SYNC_QUEUED, mark_inode_dirty_sync() is the right thing to do because mark_inode_dirty_sync() now knows not to move the inode to a writeback list if it is currently queued for sync. Fixes: |
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Christoph Hellwig
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f738717033 |
writeback: don't warn on an unregistered BDI in __mark_inode_dirty
BDIs get unregistered during device removal, and this WARN can be trivially triggered by hot-removing a NVMe device while running fsx It is otherwise harmless as we still hold a BDI reference, and the writeback has been shut down already. Link: https://lore.kernel.org/r/20200928122613.434820-1-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> |
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Linus Torvalds
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3ad11d7ac8 |
Merge tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe: - Series of merge handling cleanups (Baolin, Christoph) - Series of blk-throttle fixes and cleanups (Baolin) - Series cleaning up BDI, seperating the block device from the backing_dev_info (Christoph) - Removal of bdget() as a generic API (Christoph) - Removal of blkdev_get() as a generic API (Christoph) - Cleanup of is-partition checks (Christoph) - Series reworking disk revalidation (Christoph) - Series cleaning up bio flags (Christoph) - bio crypt fixes (Eric) - IO stats inflight tweak (Gabriel) - blk-mq tags fixes (Hannes) - Buffer invalidation fixes (Jan) - Allow soft limits for zone append (Johannes) - Shared tag set improvements (John, Kashyap) - Allow IOPRIO_CLASS_RT for CAP_SYS_NICE (Khazhismel) - DM no-wait support (Mike, Konstantin) - Request allocation improvements (Ming) - Allow md/dm/bcache to use IO stat helpers (Song) - Series improving blk-iocost (Tejun) - Various cleanups (Geert, Damien, Danny, Julia, Tetsuo, Tian, Wang, Xianting, Yang, Yufen, yangerkun) * tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (191 commits) block: fix uapi blkzoned.h comments blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue blk-mq: get rid of the dead flush handle code path block: get rid of unnecessary local variable block: fix comment and add lockdep assert blk-mq: use helper function to test hw stopped block: use helper function to test queue register block: remove redundant mq check block: invoke blk_mq_exit_sched no matter whether have .exit_sched percpu_ref: don't refer to ref->data if it isn't allocated block: ratelimit handle_bad_sector() message blk-throttle: Re-use the throtl_set_slice_end() blk-throttle: Open code __throtl_de/enqueue_tg() blk-throttle: Move service tree validation out of the throtl_rb_first() blk-throttle: Move the list operation after list validation blk-throttle: Fix IO hang for a corner case blk-throttle: Avoid tracking latency if low limit is invalid blk-throttle: Avoid getting the current time if tg->last_finish_time is 0 blk-throttle: Remove a meaningless parameter for throtl_downgrade_state() block: Remove redundant 'return' statement ... |
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Christoph Hellwig
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f56753ac2a |
bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag
Replace the two negative flags that are always used together with a single positive flag that indicates the writeback capability instead of two related non-capabilities. Also remove the pointless wrappers to just check the flag. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Tobias Klauser
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9ca48e20ec |
fs/fs-writeback.c: adjust dirtytime_interval_handler definition to match prototype
Commit |
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Jan Kara
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5fcd57505c |
writeback: Drop I_DIRTY_TIME_EXPIRE
The only use of I_DIRTY_TIME_EXPIRE is to detect in __writeback_single_inode() that inode got there because flush worker decided it's time to writeback the dirty inode time stamps (either because we are syncing or because of age). However we can detect this directly in __writeback_single_inode() and there's no need for the strange propagation with I_DIRTY_TIME_EXPIRE flag. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> |
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Jan Kara
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f9cae926f3 |
writeback: Fix sync livelock due to b_dirty_time processing
When we are processing writeback for sync(2), move_expired_inodes()
didn't set any inode expiry value (older_than_this). This can result in
writeback never completing if there's steady stream of inodes added to
b_dirty_time list as writeback rechecks dirty lists after each writeback
round whether there's more work to be done. Fix the problem by using
sync(2) start time is inode expiry value when processing b_dirty_time
list similarly as for ordinarily dirtied inodes. This requires some
refactoring of older_than_this handling which simplifies the code
noticeably as a bonus.
Fixes:
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Jan Kara
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5afced3bf2 |
writeback: Avoid skipping inode writeback
Inode's i_io_list list head is used to attach inode to several different
lists - wb->{b_dirty, b_dirty_time, b_io, b_more_io}. When flush worker
prepares a list of inodes to writeback e.g. for sync(2), it moves inodes
to b_io list. Thus it is critical for sync(2) data integrity guarantees
that inode is not requeued to any other writeback list when inode is
queued for processing by flush worker. That's the reason why
writeback_single_inode() does not touch i_io_list (unless the inode is
completely clean) and why __mark_inode_dirty() does not touch i_io_list
if I_SYNC flag is set.
However there are two flaws in the current logic:
1) When inode has only I_DIRTY_TIME set but it is already queued in b_io
list due to sync(2), concurrent __mark_inode_dirty(inode, I_DIRTY_SYNC)
can still move inode back to b_dirty list resulting in skipping
writeback of inode time stamps during sync(2).
2) When inode is on b_dirty_time list and writeback_single_inode() races
with __mark_inode_dirty() like:
writeback_single_inode() __mark_inode_dirty(inode, I_DIRTY_PAGES)
inode->i_state |= I_SYNC
__writeback_single_inode()
inode->i_state |= I_DIRTY_PAGES;
if (inode->i_state & I_SYNC)
bail
if (!(inode->i_state & I_DIRTY_ALL))
- not true so nothing done
We end up with I_DIRTY_PAGES inode on b_dirty_time list and thus
standard background writeback will not writeback this inode leading to
possible dirty throttling stalls etc. (thanks to Martijn Coenen for this
analysis).
Fix these problems by tracking whether inode is queued in b_io or
b_more_io lists in a new I_SYNC_QUEUED flag. When this flag is set, we
know flush worker has queued inode and we should not touch i_io_list.
On the other hand we also know that once flush worker is done with the
inode it will requeue the inode to appropriate dirty list. When
I_SYNC_QUEUED is not set, __mark_inode_dirty() can (and must) move inode
to appropriate dirty list.
Reported-by: Martijn Coenen <maco@android.com>
Reviewed-by: Martijn Coenen <maco@android.com>
Tested-by: Martijn Coenen <maco@android.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Fixes:
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Jan Kara
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b35250c081 |
writeback: Protect inode->i_io_list with inode->i_lock
Currently, operations on inode->i_io_list are protected by wb->list_lock. In the following patches we'll need to maintain consistency between inode->i_state and inode->i_io_list so change the code so that inode->i_lock protects also all inode's i_io_list handling. Reviewed-by: Martijn Coenen <maco@android.com> Reviewed-by: Christoph Hellwig <hch@lst.de> CC: stable@vger.kernel.org # Prerequisite for "writeback: Avoid skipping inode writeback" Signed-off-by: Jan Kara <jack@suse.cz> |
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Linus Torvalds
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0b166a57e6 |
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"A lot of bug fixes and cleanups for ext4, including:
- Fix performance problems found in dioread_nolock now that it is the
default, caused by transaction leaks.
- Clean up fiemap handling in ext4
- Clean up and refactor multiple block allocator (mballoc) code
- Fix a problem with mballoc with a smaller file systems running out
of blocks because they couldn't properly use blocks that had been
reserved by inode preallocation.
- Fixed a race in ext4_sync_parent() versus rename()
- Simplify the error handling in the extent manipulation code
- Make sure all metadata I/O errors are felected to
ext4_ext_dirty()'s and ext4_make_inode_dirty()'s callers.
- Avoid passing an error pointer to brelse in ext4_xattr_set()
- Fix race which could result to freeing an inode on the dirty last
in data=journal mode.
- Fix refcount handling if ext4_iget() fails
- Fix a crash in generic/019 caused by a corrupted extent node"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (58 commits)
ext4: avoid unnecessary transaction starts during writeback
ext4: don't block for O_DIRECT if IOCB_NOWAIT is set
ext4: remove the access_ok() check in ext4_ioctl_get_es_cache
fs: remove the access_ok() check in ioctl_fiemap
fs: handle FIEMAP_FLAG_SYNC in fiemap_prep
fs: move fiemap range validation into the file systems instances
iomap: fix the iomap_fiemap prototype
fs: move the fiemap definitions out of fs.h
fs: mark __generic_block_fiemap static
ext4: remove the call to fiemap_check_flags in ext4_fiemap
ext4: split _ext4_fiemap
ext4: fix fiemap size checks for bitmap files
ext4: fix EXT4_MAX_LOGICAL_BLOCK macro
add comment for ext4_dir_entry_2 file_type member
jbd2: avoid leaking transaction credits when unreserving handle
ext4: drop ext4_journal_free_reserved()
ext4: mballoc: use lock for checking free blocks while retrying
ext4: mballoc: refactor ext4_mb_good_group()
ext4: mballoc: introduce pcpu seqcnt for freeing PA to improve ENOSPC handling
ext4: mballoc: refactor ext4_mb_discard_preallocations()
...
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Jan Kara
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4301efa4c7 |
writeback: Export inode_io_list_del()
Ext4 needs to remove inode from writeback lists after it is out of visibility of its journalling machinery (which can still dirty the inode). Export inode_io_list_del() for it. Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20200421085445.5731-3-jack@suse.cz Signed-off-by: Theodore Ts'o <tytso@mit.edu> |
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Linus Torvalds
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750a02ab8d |
Merge tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe: "Core block changes that have been queued up for this release: - Remove dead blk-throttle and blk-wbt code (Guoqing) - Include pid in blktrace note traces (Jan) - Don't spew I/O errors on wouldblock termination (me) - Zone append addition (Johannes, Keith, Damien) - IO accounting improvements (Konstantin, Christoph) - blk-mq hardware map update improvements (Ming) - Scheduler dispatch improvement (Salman) - Inline block encryption support (Satya) - Request map fixes and improvements (Weiping) - blk-iocost tweaks (Tejun) - Fix for timeout failing with error injection (Keith) - Queue re-run fixes (Douglas) - CPU hotplug improvements (Christoph) - Queue entry/exit improvements (Christoph) - Move DMA drain handling to the few drivers that use it (Christoph) - Partition handling cleanups (Christoph)" * tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block: (127 commits) block: mark bio_wouldblock_error() bio with BIO_QUIET blk-wbt: rename __wbt_update_limits to wbt_update_limits blk-wbt: remove wbt_update_limits blk-throttle: remove tg_drain_bios blk-throttle: remove blk_throtl_drain null_blk: force complete for timeout request blk-mq: drain I/O when all CPUs in a hctx are offline blk-mq: add blk_mq_all_tag_iter blk-mq: open code __blk_mq_alloc_request in blk_mq_alloc_request_hctx blk-mq: use BLK_MQ_NO_TAG in more places blk-mq: rename BLK_MQ_TAG_FAIL to BLK_MQ_NO_TAG blk-mq: move more request initialization to blk_mq_rq_ctx_init blk-mq: simplify the blk_mq_get_request calling convention blk-mq: remove the bio argument to ->prepare_request nvme: force complete cancelled requests blk-mq: blk-mq: provide forced completion method block: fix a warning when blkdev.h is included for !CONFIG_BLOCK builds block: blk-crypto-fallback: remove redundant initialization of variable err block: reduce part_stat_lock() scope block: use __this_cpu_add() instead of access by smp_processor_id() ... |
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NeilBrown
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8d92890bd6 |
mm/writeback: discard NR_UNSTABLE_NFS, use NR_WRITEBACK instead
After an NFS page has been written it is considered "unstable" until a
COMMIT request succeeds. If the COMMIT fails, the page will be
re-written.
These "unstable" pages are currently accounted as "reclaimable", either
in WB_RECLAIMABLE, or in NR_UNSTABLE_NFS which is included in a
'reclaimable' count. This might have made sense when sending the COMMIT
required a separate action by the VFS/MM (e.g. releasepage() used to
send a COMMIT). However now that all writes generated by ->writepages()
will automatically be followed by a COMMIT (since commit
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Christoph Hellwig
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1cd925d583 |
bdi: remove the name field in struct backing_dev_info
The name is only printed for a not registered bdi in writeback. Use the device name there as is more useful anyway for the unlike case that the warning triggers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Theodore Ts'o
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68f23b8906 |
memcg: fix a crash in wb_workfn when a device disappears
Without memcg, there is a one-to-one mapping between the bdi and bdi_writeback structures. In this world, things are fairly straightforward; the first thing bdi_unregister() does is to shutdown the bdi_writeback structure (or wb), and part of that writeback ensures that no other work queued against the wb, and that the wb is fully drained. With memcg, however, there is a one-to-many relationship between the bdi and bdi_writeback structures; that is, there are multiple wb objects which can all point to a single bdi. There is a refcount which prevents the bdi object from being released (and hence, unregistered). So in theory, the bdi_unregister() *should* only get called once its refcount goes to zero (bdi_put will drop the refcount, and when it is zero, release_bdi gets called, which calls bdi_unregister). Unfortunately, del_gendisk() in block/gen_hd.c never got the memo about the Brave New memcg World, and calls bdi_unregister directly. It does this without informing the file system, or the memcg code, or anything else. This causes the root wb associated with the bdi to be unregistered, but none of the memcg-specific wb's are shutdown. So when one of these wb's are woken up to do delayed work, they try to dereference their wb->bdi->dev to fetch the device name, but unfortunately bdi->dev is now NULL, thanks to the bdi_unregister() called by del_gendisk(). As a result, *boom*. Fortunately, it looks like the rest of the writeback path is perfectly happy with bdi->dev and bdi->owner being NULL, so the simplest fix is to create a bdi_dev_name() function which can handle bdi->dev being NULL. This also allows us to bulletproof the writeback tracepoints to prevent them from dereferencing a NULL pointer and crashing the kernel if one is tracing with memcg's enabled, and an iSCSI device dies or a USB storage stick is pulled. The most common way of triggering this will be hotremoval of a device while writeback with memcg enabled is going on. It was triggering several times a day in a heavily loaded production environment. Google Bug Id: 145475544 Link: https://lore.kernel.org/r/20191227194829.150110-1-tytso@mit.edu Link: http://lkml.kernel.org/r/20191228005211.163952-1-tytso@mit.edu Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: Chris Mason <clm@fb.com> Cc: Tejun Heo <tj@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Tejun Heo
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65de03e251 |
cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
cgroup writeback tries to refresh the associated wb immediately if the current wb is dead. This is to avoid keeping issuing IOs on the stale wb after memcg - blkcg association has changed (ie. when blkcg got disabled / enabled higher up in the hierarchy). Unfortunately, the logic gets triggered spuriously on inodes which are associated with dead cgroups. When the logic is triggered on dead cgroups, the attempt fails only after doing quite a bit of work allocating and initializing a new wb. While |
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Randy Dunlap
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b46ec1da5e |
fs/fs-writeback.c: fix kernel-doc warning
Fix kernel-doc warning in fs/fs-writeback.c:
fs/fs-writeback.c:913: warning: Excess function parameter 'nr_pages' description in 'cgroup_writeback_by_id'
Link: http://lkml.kernel.org/r/756645ac-0ce8-d47e-d30a-04d9e4923a4f@infradead.org
Fixes:
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Tejun Heo
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8e00c4e9dd |
writeback: fix use-after-free in finish_writeback_work()
finish_writeback_work() reads @done->waitq after decrementing
@done->cnt. However, once @done->cnt reaches zero, @done may be freed
(from stack) at any moment and @done->waitq can contain something
unrelated by the time finish_writeback_work() tries to read it. This
led to the following crash.
"BUG: kernel NULL pointer dereference, address: 0000000000000002"
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0
Oops: 0002 [#1] SMP DEBUG_PAGEALLOC
CPU: 40 PID: 555153 Comm: kworker/u98:50 Kdump: loaded Not tainted
...
Workqueue: writeback wb_workfn (flush-btrfs-1)
RIP: 0010:_raw_spin_lock_irqsave+0x10/0x30
Code: 48 89 d8 5b c3 e8 50 db 6b ff eb f4 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 53 9c 5b fa 31 c0 ba 01 00 00 00 <f0> 0f b1 17 75 05 48 89 d8 5b c3 89 c6 e8 fe ca 6b ff eb f2 66 90
RSP: 0018:ffffc90049b27d98 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000246 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: ffff889fff407600 R11: ffff88ba9395d740 R12: 000000000000e300
R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88bfdfa00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000002 CR3: 0000000002409005 CR4: 00000000001606e0
Call Trace:
__wake_up_common_lock+0x63/0xc0
wb_workfn+0xd2/0x3e0
process_one_work+0x1f5/0x3f0
worker_thread+0x2d/0x3d0
kthread+0x111/0x130
ret_from_fork+0x1f/0x30
Fix it by reading and caching @done->waitq before decrementing
@done->cnt.
Link: http://lkml.kernel.org/r/20190924010631.GH2233839@devbig004.ftw2.facebook.com
Fixes:
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Tejun Heo
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3a8e9ac89e |
writeback: add tracepoints for cgroup foreign writebacks
cgroup foreign inode handling has quite a bit of heuristics and internal states which sometimes makes it difficult to understand what's going on. Add tracepoints to improve visibility. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Tejun Heo
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d62241c7a4 |
writeback, memcg: Implement cgroup_writeback_by_id()
Implement cgroup_writeback_by_id() which initiates cgroup writeback
from bdi and memcg IDs. This will be used by memcg foreign inode
flushing.
v2: Use wb_get_lookup() instead of wb_get_create() to avoid creating
spurious wbs.
v3: Interpret 0 @nr as 1.25 * nr_dirty to implement best-effort
flushing while avoding possible livelocks.
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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