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Keith Busch 82f20194bf nvme: use srcu for iterating namespace list 
[ Upstream commit be647e2c76 ]

The nvme pci driver synchronizes with all the namespace queues during a
reset to ensure that there's no pending timeout work.

Meanwhile the timeout work potentially iterates those same namespaces to
freeze their queues.

Each of those namespace iterations use the same read lock. If a write
lock should somehow get between the synchronize and freeze steps, then
forward progress is deadlocked.

We had been relying on the nvme controller state machine to ensure the
reset work wouldn't conflict with timeout work. That guarantee may be a
bit fragile to rely on, so iterate the namespace lists without taking
potentially circular locks, as reported by lockdep.

Link: https://lore.kernel.org/all/20220930001943.zdbvolc3gkekfmcv@shindev/
Reported-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Tested-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-08-29 17:33:41 +02:00
..
accel accel/habanalabs: fix debugfs files permissions 2024-08-29 17:33:35 +02:00
accessibility speakup: Fix sizeof() vs ARRAY_SIZE() bug 2024-06-12 11:11:18 +02:00
acpi ACPI: EC: Evaluate _REG outside the EC scope more carefully 2024-08-29 17:33:13 +02:00
amba amba: bus: fix refcount leak 2023-08-22 15:50:57 +02:00
android binder: fix hang of unregistered readers 2024-08-03 08:54:21 +02:00
ata Revert "ata: libata-scsi: Honor the D_SENSE bit for CK_COND=1 and no error" 2024-08-19 06:04:31 +02:00
atm atm: idt77252: prevent use after free in dequeue_rx() 2024-08-29 17:33:18 +02:00
auxdisplay auxdisplay: ht16k33: Drop reference after LED registration 2024-08-03 08:54:39 +02:00
base driver core: Fix uevent_show() vs driver detach race 2024-08-14 13:58:56 +02:00
bcma bcma: Add explicit of_device.h include 2023-04-14 15:32:56 +03:00
block rbd: don't assume RBD_LOCK_STATE_LOCKED for exclusive mappings 2024-08-03 08:54:32 +02:00
bluetooth Bluetooth: btnxpuart: Shutdown timer and prevent rearming when driver unloading 2024-08-14 13:58:44 +02:00
bus bus: mhi: host: Add MHI_PM_SYS_ERR_FAIL state 2024-04-13 13:07:38 +02:00
cache cache: ax45mp_cache: Align end size to cache boundary in ax45mp_dma_cache_wback() 2024-03-01 13:35:08 +01:00
cdrom cdrom: rearrange last_media_change check to avoid unintentional overflow 2024-07-11 12:49:10 +02:00
cdx cdx: Explicitly include correct DT includes 2023-08-04 16:21:20 +02:00
char char: xillybus: Check USB endpoints when probing device 2024-08-29 17:33:11 +02:00
clk clk: visconti: Add bounds-checking coverage for struct visconti_pll_provider 2024-08-29 17:33:29 +02:00
clocksource clocksource/drivers/arm_global_timer: Guard against division by zero 2024-08-29 17:33:35 +02:00
comedi comedi: vmk80xx: fix incomplete endpoint checking 2024-04-27 17:11:39 +02:00
connector connector/cn_proc: revert "connector: Fix proc_event_num_listeners count not cleared" 2024-02-23 09:25:01 +01:00
counter counter: ti-eqep: enable clock at probe 2024-07-05 09:33:56 +02:00
cpufreq cpufreq: qcom-nvmem: fix memory leaks in probe error paths 2024-08-11 12:47:14 +02:00
cpuidle cpuidle: Avoid potential overflow in integer multiplication 2024-04-13 13:07:29 +02:00
crypto crypto: qat - extend scope of lock in adf_cfg_add_key_value_param() 2024-08-03 08:54:01 +02:00
cxl cxl/region: check interleave capability 2024-07-05 09:34:07 +02:00
dax mm: remove enum page_entry_size 2023-08-24 16:20:30 -07:00
dca Mainly singleton patches all over the place. Series of note are: 2023-04-27 19:57:00 -07:00
devfreq PM / devfreq: Synchronize devfreq_monitor_[start/stop] 2024-02-05 20:14:15 +00:00
dio drivers: dio: fix possible memory leak in dio_init() 2022-11-09 15:12:37 +01:00
dma dmaengine: fsl-edma: change the memory access from local into remote mode in i.MX 8QM 2024-08-11 12:47:17 +02:00
dma-buf dma-buf: handle testing kthreads creation failure 2024-06-21 14:38:40 +02:00
edac EDAC/skx_common: Filter out the invalid address 2024-08-29 17:33:32 +02:00
eisa EISA: Replace all non-returning strlcpy with strscpy 2023-07-27 10:04:42 -07:00
extcon extcon: max8997: select IRQ_DOMAIN instead of depending on it 2024-06-12 11:12:27 +02:00
firewire firewire: ohci: fulfill timestamp for some local asynchronous transaction 2024-05-17 12:02:30 +02:00
firmware firmware: cirrus: cs_dsp: Initialize debugfs_root to invalid 2024-08-29 17:33:38 +02:00
fpga fpga: region: add owner module and take its refcount 2024-06-12 11:12:23 +02:00
fsi fsi: i2cr: Switch to use struct i2c_driver's .probe() 2023-08-22 15:51:33 +02:00
gnss driver core: class: remove module * from class_create() 2023-03-17 15:16:33 +01:00
gpio gpio: sysfs: extend the critical section for unregistering sysfs devices 2024-08-29 17:33:34 +02:00
gpu drm/lima: set gp bus_stop bit before hard reset 2024-08-29 17:33:34 +02:00
greybus greybus: Fix use-after-free bug in gb_interface_release due to race condition. 2024-06-21 14:38:48 +02:00
hid HID: wacom: Modify pen IDs 2024-08-11 12:47:24 +02:00
hsi hsi: omap_ssi: Explicitly include correct DT includes 2023-07-31 23:17:57 +02:00
hte hte: tegra: Fix missing error code in tegra_hte_test_probe() 2023-11-20 11:59:08 +01:00
hv Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted 2024-05-17 12:02:17 +02:00
hwmon hwmon: (pc87360) Bounds check data->innr usage 2024-08-29 17:33:31 +02:00
hwspinlock hwspinlock: qcom: add missing regmap config for SFPB MMIO implementation 2023-07-17 11:49:18 -07:00
hwtracing coresight: Fix ref leak when of_coresight_parse_endpoint() fails 2024-08-03 08:53:57 +02:00
i2c i2c: riic: avoid potential division by zero 2024-08-29 17:33:24 +02:00
i3c i3c: mipi-i3c-hci: Do not unmap region not mapped for transfer 2024-08-29 17:33:25 +02:00
idle x86: Fix CPUIDLE_FLAG_IRQ_ENABLE leaking timer reprogram 2024-01-25 15:35:12 -08:00
iio iio: frequency: adrf6780: rm clk provider include 2024-08-03 08:53:56 +02:00
infiniband IB/hfi1: Fix potential deadlock on &irq_src_lock and &dd->uctxt_lock 2024-08-29 17:33:29 +02:00
input Revert "Input: bcm5974 - check endpoint type before starting traffic" 2024-08-19 06:04:31 +02:00
interconnect interconnect: qcom: qcm2290: Fix mas_snoc_bimc RPM master ID 2024-08-03 08:53:58 +02:00
iommu iommu/arm-smmu-qcom: Add SDM670 MDSS compatible 2024-08-29 17:33:28 +02:00
ipack tty: make tty_operations::write()'s count size_t 2023-08-11 21:12:46 +02:00
irqchip irqchip/gic-v3-its: Remove BUG_ON in its_vpe_irq_domain_alloc 2024-08-29 17:33:40 +02:00
isdn mISDN: fix MISDN_TIME_STAMP handling 2024-08-19 06:04:28 +02:00
leds leds: triggers: Flush pending brightness before activating trigger 2024-08-11 12:47:14 +02:00
macintosh macintosh/therm_windtunnel: fix module unload. 2024-08-03 08:54:02 +02:00
mailbox mailbox: arm_mhuv2: Fix a bug for mhuv2_sender_interrupt 2024-02-05 20:14:31 +00:00
mcb mcb: fix error handling for different scenarios when parsing 2023-11-28 17:20:05 +00:00
md md: clean up invalid BUG_ON in md_ioctl 2024-08-29 17:33:35 +02:00
media media: drivers/media/dvb-core: copy user arrays safely 2024-08-29 17:33:34 +02:00
memory memory: stm32-fmc2-ebi: check regmap_read return value 2024-08-29 17:33:36 +02:00
memstick memstick r592: make memstick_debug_get_tpc_name() static 2023-06-12 15:16:19 +02:00
message scsi: message: fusion: Add HAS_IOPORT dependencies 2023-05-31 19:59:26 -04:00
mfd mfd: omap-usb-tll: Use struct_size to allocate tll 2024-08-03 08:53:54 +02:00
misc Revert "misc: fastrpc: Restrict untrusted app to attach to privileged PD" 2024-08-29 17:33:10 +02:00
mmc mmc: sdhci: Do not lock spinlock around mmc_gpio_get_ro() 2024-07-05 09:33:55 +02:00
most staging: most: Replace all non-returning strlcpy with strscpy 2023-06-01 07:07:37 -07:00
mtd ubi: eba: properly rollback inside self_check_eba 2024-08-03 08:54:23 +02:00
mux mux: Explicitly include correct DT includes 2023-08-28 13:36:24 -05:00
net net: hns3: add checking for vf id of mailbox 2024-08-29 17:33:39 +02:00
nfc nfc/nci: Add the inconsistency check between the input data length and count 2024-07-11 12:49:21 +02:00
ntb NTB: fix possible name leak in ntb_register_device() 2024-03-26 18:19:48 -04:00
nubus nubus: Don't list slot resources by default 2023-05-22 13:51:56 +02:00
nvdimm nd_btt: Make BTT lanes preemptible 2023-11-20 11:59:19 +01:00
nvme nvme: use srcu for iterating namespace list 2024-08-29 17:33:41 +02:00
nvmem nvmem: rockchip-otp: set add_legacy_fixed_of_cells config option 2024-08-03 08:54:01 +02:00
of of/irq: Disable "interrupt-map" parsing for PASEMI Nemo 2024-07-25 09:50:57 +02:00
opp OPP: ti: Fix ti_opp_supply_probe wrong return values 2024-08-03 08:53:27 +02:00
parisc parisc/power: Fix power soft-off button emulation on qemu 2024-01-31 16:18:52 -08:00
parport dev/parport: fix the array out-of-bounds risk 2024-08-03 08:54:22 +02:00
pci PCI: Add pci_get_base_class() helper 2024-08-11 12:47:15 +02:00
pcmcia pcmcia: ds: fix possible name leak in error path in pcmcia_device_add() 2023-11-20 11:59:31 +01:00
peci Update peci-next for v6.6-rc1 2023-08-08 10:53:30 +02:00
perf perf: riscv: Fix selecting counters in legacy mode 2024-08-11 12:47:23 +02:00
phy phy: zynqmp: Enable reference clock correctly 2024-08-03 08:54:35 +02:00
pinctrl pinctrl: renesas: r8a779g0: Fix TPU suffixes 2024-08-03 08:54:09 +02:00
platform platform/x86: lg-laptop: fix %s null argument warning 2024-08-29 17:33:40 +02:00
pmdomain pmdomain: qcom: rpmhpd: Skip retention level for Power Domains 2024-07-18 13:21:22 +02:00
pnp PNP: ACPI: fix fortify warning 2024-02-05 20:14:15 +00:00
power power: supply: axp288_charger: Round constant_charge_voltage writes down 2024-08-14 13:58:58 +02:00
powercap powercap: intel_rapl_tpmi: Fix System Domain probing 2024-04-03 15:28:19 +02:00
pps driver core: class: remove module * from class_create() 2023-03-17 15:16:33 +01:00
ps3 driver/ps3: Include <video/cmdline.h> for mode parsing 2023-02-20 14:56:51 +01:00
ptp ptp: fix integer overflow in max_vclocks_store 2024-06-27 13:49:07 +02:00
pwm pwm: atmel-tcb: Fix race condition and convert to guards 2024-08-03 08:53:23 +02:00
rapidio Mainly singleton patches all over the place. Series of note are: 2023-04-27 19:57:00 -07:00
ras ras/debugfs: Fix error checking for debugfs_create_dir() 2023-05-16 21:12:23 +02:00
regulator regulator: bd71815: fix ramp values 2024-06-27 13:49:09 +02:00
remoteproc remoteproc: imx_rproc: Fix refcount mistake in imx_rproc_addr_init 2024-08-03 08:54:31 +02:00
reset reset: hisilicon: hi6220: fix Wvoid-pointer-to-enum-cast warning 2024-01-20 11:51:44 +01:00
rpmsg rpmsg: virtio: Free driver_override when rpmsg_remove() 2024-01-31 16:18:50 -08:00
rtc rtc: nct3018y: fix possible NULL dereference 2024-08-29 17:33:39 +02:00
s390 bitmap: introduce generic optimized bitmap_size() 2024-08-29 17:33:14 +02:00
sbus sbus: Explicitly include correct DT includes 2023-08-28 13:36:24 -05:00
scsi scsi: lpfc: Initialize status local variable in lpfc_sli4_repost_sgl_list() 2024-08-29 17:33:34 +02:00
sh sh: intc: move to use bus_get_dev_root() 2023-03-17 15:29:55 +01:00
siox siox: fix possible memory leak in siox_device_add() 2022-11-09 15:40:14 +01:00
slimbus slimbus: qcom-ngd-ctrl: Add timeout for wait operation 2024-05-17 12:02:33 +02:00
soc drivers: soc: xilinx: check return status of get_api_version() 2024-08-03 08:54:18 +02:00
soundwire soundwire: cadence: fix invalid PDI offset 2024-06-12 11:12:15 +02:00
spi spi: spi-fsl-lpspi: Fix scldiv calculation 2024-08-14 13:58:52 +02:00
spmi spmi: hisi-spmi-controller: Do not override device identifier 2024-06-21 14:38:40 +02:00
ssb ssb: Fix division by zero issue in ssb_calc_clock_rate 2024-08-29 17:33:22 +02:00
staging staging: ks7010: disable bh on tx_dev_lock 2024-08-29 17:33:26 +02:00
target scsi: target: Fix SELinux error when systemd-modules loads the target module 2024-05-17 12:02:15 +02:00
tc The main MIPS changes for 5.6: 2020-01-31 11:28:31 -08:00
tee tee: optee: ffa: Fix missing-field-initializers warning 2024-07-25 09:50:53 +02:00
thermal thermal/drivers/broadcom: Fix race between removal and clock disable 2024-08-11 12:47:12 +02:00
thunderbolt thunderbolt: Mark XDomain as unplugged when router is removed 2024-08-29 17:33:12 +02:00
tty tty: atmel_serial: use the correct RTS flag. 2024-08-29 17:33:10 +02:00
ufs scsi: ufs: core: Fix hba->last_dme_cmd_tstamp timestamp updating logic 2024-08-14 13:58:55 +02:00
uio uio_hv_generic: Don't free decrypted memory 2024-05-17 12:02:17 +02:00
usb usb: dwc3: core: Skip setting event buffers for host only controllers 2024-08-29 17:33:40 +02:00
vdpa vduse: Temporarily fail if control queue feature requested 2024-07-05 09:33:50 +02:00
vfio vfio/pci: Init the count variable in collecting hot-reset devices 2024-07-18 13:21:10 +02:00
vhost vhost-vdpa: switch to use vmf_insert_pfn() in the fault handler 2024-08-14 13:58:55 +02:00
video fbdev: vesafb: Detect VGA compatibility from screen info's VESA attributes 2024-08-11 12:47:16 +02:00
virt drivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map() 2024-06-12 11:12:09 +02:00
virtio virtio: delete vq in vp_find_vqs_msix() when request_irq() fails 2024-06-12 11:12:49 +02:00
vlynq bus: Make remove callback return void 2021-07-21 11:53:42 +02:00
w1 nvmem: add explicit config option to read old syntax fixed OF cells 2024-05-17 12:01:55 +02:00
watchdog watchdog: rzg2l_wdt: Check return status of pm_runtime_put() 2024-08-03 08:54:35 +02:00
xen xen: privcmd: Switch from mutex to spinlock for irqfds 2024-08-14 13:58:42 +02:00
zorro zorro: Include zorro.h in names.c 2023-08-21 13:27:44 +02:00
Kconfig Merge patch series "Add non-coherent DMA support for AX45MP" 2023-09-08 11:24:34 -07:00
Makefile pmdomain: Rename the genpd subsystem to pmdomain 2023-09-13 11:09:21 +02:00