* refs/heads/tmp-813bf83:
ANDROID: update abi for previous revert
Revert "BACKPORT: perf_event: Add support for LSM and SELinux checks"
Linux 5.4.9
mm/hugetlb: defer freeing of huge pages if in non-task context
hsr: fix a race condition in node list insertion and deletion
hsr: fix error handling routine in hsr_dev_finalize()
hsr: avoid debugfs warning message when module is remove
net: annotate lockless accesses to sk->sk_pacing_shift
perf/x86/intel/bts: Fix the use of page_private()
efi: Don't attempt to map RCI2 config table if it doesn't exist
lib/ubsan: don't serialize UBSAN report
xen/blkback: Avoid unmapping unmapped grant pages
mm/sparse.c: mark populate_section_memmap as __meminit
s390/smp: fix physical to logical CPU map for SMT
Btrfs: only associate the locked page with one async_chunk struct
btrfs: get rid of unique workqueue helper functions
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps
net: add annotations on hh->hh_len lockless accesses
xfs: periodically yield scrub threads to the scheduler
drm/i915/execlists: Fix annotation for decoupling virtual request
ath9k_htc: Discard undersized packets
ath9k_htc: Modify byte order for an error message
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
fs: cifs: Fix atime update check vs mtime
cifs: Fix lookup of root ses in DFS referral cache
tty: serial: msm_serial: Fix lockup for sysrq and oops
phy: renesas: rcar-gen3-usb2: Use platform_get_irq_optional() for optional irq
arm64: dts: meson: odroid-c2: Disable usb_otg bus to avoid power failed warning
dt-bindings: clock: renesas: rcar-usb2-clock-sel: Fix typo in example
media: usb: fix memory leak in af9005_identify_state
regulator: ab8500: Remove AB8505 USB regulator
media: flexcop-usb: ensure -EIO is returned on error condition
arm64: dts: meson-gxm-khadas-vim2: fix uart_A bluetooth node
arm64: dts: meson-gxl-s905x-khadas-vim: fix uart_A bluetooth node
Bluetooth: Fix memory leak in hci_connect_le_scan
Bluetooth: delete a stray unlock
Bluetooth: btusb: fix PM leak in error case of setup
powerpc/mm: Mark get_slice_psize() & slice_addr_is_low() as notrace
regulator: axp20x: Fix AXP22x ELDO2 regulator enable bitmask
spi: uniphier: Fix FIFO threshold
regulator: bd70528: Remove .set_ramp_delay for bd70528_ldo_ops
regulator: axp20x: Fix axp20x_set_ramp_delay
watchdog: tqmx86_wdt: Fix build error
net, sysctl: Fix compiler warning when only cBPF is present
netfilter: nf_queue: enqueue skbs with NULL dst
platform/x86: pmc_atom: Add Siemens CONNECT X300 to critclk_systems DMI table
xfs: don't check for AG deadlock for realtime files in bunmapi
firmware: arm_scmi: Avoid double free in error flow
cifs: Fix potential softlockups while refreshing DFS cache
of: overlay: add_changeset_property() memory leak
iommu/vt-d: Remove incorrect PSI capability check
perf callchain: Fix segfault in thread__resolve_callchain_sample()
ACPI: sysfs: Change ACPI_MASKABLE_GPE_MAX to 0x100
kernel/module.c: wakeup processes in module_wq on module unload
net/sched: annotate lockless accesses to qdisc->empty
HID: i2c-hid: Reset ALPS touchpads on resume
powerpc: Chunk calls to flush_dcache_range in arch_*_memory
nfsd4: fix up replay_matches_cache()
arm64: dts: qcom: msm8998-clamshell: Remove retention idle state
sunrpc: fix crash when cache_head become valid before update
PM / devfreq: Check NULL governor in available_governors_show
drm/msm: include linux/sched/task.h
spi: spi-fsl-dspi: Fix 16-bit word order in 32-bit XSPI mode
ftrace: Avoid potential division by zero in function profiler
arm64: Revert support for execute-only user mappings
exit: panic before exit_mm() on global init exit
scsi: lpfc: Fix rpi release when deleting vport
ALSA: firewire-motu: Correct a typo in the clock proc string
ALSA: pcm: Yet another missing check of non-cached buffer type
ALSA: cs4236: fix error return comparison of an unsigned integer
gen_initramfs_list.sh: fix 'bad variable name' error
dmaengine: virt-dma: Fix access after free in vchan_complete()
apparmor: fix aa_xattrs_match() may sleep while holding a RCU lock
mm/gup: fix memory leak in __gup_benchmark_ioctl
io_uring: use current task creds instead of allocating a new one
samples/trace_printk: Wait for IRQ work to finish
tracing: Fix endianness bug in histogram trigger
tracing: Have the histogram compare functions convert to u64 first
tracing: Avoid memory leak in process_system_preds()
tracing: Fix lock inversion in trace_event_enable_tgid_record()
rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
riscv: ftrace: correct the condition logic in function graph tracer
clocksource: riscv: add notrace to riscv_sched_clock
gpiolib: fix up emulated open drain outputs
gpio: xtensa: fix driver build
libata: Fix retrieving of active qcs
ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
ata: ahci_brcm: Add missing clock management during recovery
ata: ahci_brcm: Fix AHCI resources management
ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
bpf: Fix precision tracking for unbounded scalars
compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES
compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
compat_ioctl: block: handle Persistent Reservations
Btrfs: fix infinite loop during nocow writeback due to race
dmaengine: dma-jz4780: Also break descriptor chains on JZ4725B
dmaengine: Fix access to uninitialized dma_slave_caps
selftests/seccomp: Catch garbage on SECCOMP_IOCTL_NOTIF_RECV
samples/seccomp: Zero out members based on seccomp_notif_sizes
seccomp: Check that seccomp_notif is zeroed out by the user
selftests/seccomp: Zero out seccomp_notif
locks: print unsigned ino in /proc/locks
gcc-plugins: make it possible to disable CONFIG_GCC_PLUGINS again
pstore/ram: Fix error-path memory leak in persistent_ram_new() callers
pstore/ram: Write new dumps to start of recycled zones
ocfs2: fix the crash due to call ocfs2_get_dlm_debug once less
mm/oom: fix pgtables units mismatch in Killed process message
mm: move_pages: return valid node id in status if the page is already on the target node
memcg: account security cred as well to kmemcg
mm/zsmalloc.c: fix the migrated zspage statistics.
mm/memory_hotplug: shrink zones when offlining memory
media: cec: check 'transmit_in_progress', not 'transmitting'
media: cec: avoid decrementing transmit_queue_sz if it is 0
media: cec: CEC 2.0-only bcast messages were ignored
media: pulse8-cec: fix lost cec_transmit_attempt_done() call
MIPS: Avoid VDSO ABI breakage due to global register variable
MIPS: BPF: eBPF JIT: check for MIPS ISA compliance in Kconfig
MIPS: BPF: Disable MIPS32 eBPF JIT
drm/amdgpu/smu: add metrics table lock for vega20 (v2)
drm/amdgpu/smu: add metrics table lock for navi (v2)
drm/amdgpu/smu: add metrics table lock for arcturus (v2)
drm/amdgpu/smu: add metrics table lock
drm/sun4i: hdmi: Remove duplicate cleanup calls
ALSA: hda/realtek - Add headset Mic no shutup for ALC283
ALSA: hda - Apply sync-write workaround to old Intel platforms, too
ALSA: usb-audio: set the interface format after resume on Dell WD19
ALSA: usb-audio: fix set_format altsetting sanity check
ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support code
mm: drop mmap_sem before calling balance_dirty_pages() in write fault
block: add bio_truncate to fix guard_bio_eod
netfilter: nft_tproxy: Fix port selector on Big Endian
ALSA: hda - Downgrade error message for single-cmd fallback
taskstats: fix data-race
shmem: pin the file in shmem_fault() if mmap_sem is dropped
tcp: fix data-race in tcp_recvmsg()
ALSA: hda - fixup for the bass speaker on Lenovo Carbon X1 7th gen
PCI: Fix missing inline for pci_pr3_present()
ALSA: hda: Allow HDA to be runtime suspended when dGPU is not bound to a driver
PCI: Add a helper to check Power Resource Requirements _PR3 existence
ALSA: hda/realtek - Enable the bass speaker of ASUS UX431FLC
ALSA: hda/realtek - Add Bass Speaker and fixed dac for bass speaker
PM / hibernate: memory_bm_find_bit(): Tighten node optimisation
xen/balloon: fix ballooned page accounting without hotplug enabled
xen-blkback: prevent premature module unload
IB/mlx5: Fix steering rule of drop and count
IB/mlx4: Follow mirror sequence of device add during device removal
RDMA/counter: Prevent auto-binding a QP which are not tracked with res
s390/cpum_sf: Avoid SBD overflow condition in irq handler
s390/cpum_sf: Adjust sampling interval to avoid hitting sample limits
md: raid1: check rdev before reference in raid1_sync_request func
raid5: need to set STRIPE_HANDLE for batch head
afs: Fix creation calls in the dynamic root to fail with EOPNOTSUPP
afs: Fix mountpoint parsing
net: make socket read/write_iter() honor IOCB_NOWAIT
usb: gadget: fix wrong endpoint desc
drm/nouveau/kms/nv50-: fix panel scaling
drm/nouveau: Fix drm-core using atomic code-paths on pre-nv50 hardware
drm/nouveau: Move the declaration of struct nouveau_conn_atom up a bit
staging/wlan-ng: add CRC32 dependency in Kconfig
scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
scsi: libsas: stop discovering if oob mode is disconnected
scsi: iscsi: qla4xxx: fix double free in probe
scsi: qla2xxx: Ignore PORT UPDATE after N2N PLOGI
scsi: qla2xxx: Don't defer relogin unconditonally
scsi: qla2xxx: Send Notify ACK after N2N PLOGI
scsi: qla2xxx: Configure local loop for N2N target
scsi: qla2xxx: Fix PLOGI payload and ELS IOCB dump length
scsi: qla2xxx: Don't call qlt_async_event twice
scsi: qla2xxx: Drop superfluous INIT_WORK of del_work
scsi: qla2xxx: Use explicit LOGO in target mode
scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func
rxe: correctly calculate iCRC for unaligned payloads
RDMA/cma: add missed unregister_pernet_subsys in init failure
afs: Fix SELinux setting security label on /afs
afs: Fix afs_find_server lookups for ipv4 peers
PM / devfreq: Don't fail devfreq_dev_release if not in list
PM / devfreq: Set scaling_max_freq to max on OPP notifier error
PM / devfreq: Fix devfreq_notifier_call returning errno
iio: adc: max9611: Fix too short conversion time delay
iio: st_accel: Fix unused variable warning
nvme/pci: Fix read queue count
nvme/pci: Fix write and poll queue types
drm/amd/display: update dispclk and dppclk vco frequency
drm/amd/display: Reset steer fifo before unblanking the stream
drm/amd/display: Change the delay time before enabling FEC
drm/amd/display: Fixed kernel panic when booting with DP-to-HDMI dongle
drm/amd/display: Map DSC resources 1-to-1 if numbers of OPPs and DSCs are equal
drm/amdgpu: add cache flush workaround to gfx8 emit_fence
drm/amdgpu: add header line for power profile on Arcturus
drm/amdgpu: add check before enabling/disabling broadcast mode
nvme-fc: fix double-free scenarios on hw queues
nvme_fc: add module to ops template to allow module references
drm/mcde: dsi: Fix invalid pointer dereference if panel cannot be found
ANDROID: update kernel ABI representation
BACKPORT: perf_event: Add support for LSM and SELinux checks
ANDROID: Update ABI representation
ANDROID: GKI: clk: Don't disable unused clocks with sync state support
ANDROID: GKI: clk: Add support for clock providers with sync state
ANDROID: GKI: driver core: Add dev_has_sync_state()
ANDROID: sdcardfs: fix -ENOENT lookup race issue
CHROMIUM: cgroups: relax permissions on moving tasks between cgroups
UPSTREAM: selinux: sidtab reverse lookup hash table
ANDROID: update abi for 5.4.8 release
Conflicts:
Documentation/devicetree/bindings
Documentation/devicetree/bindings/clock/renesas,rcar-usb2-clock-sel.txt
arch/arm64/mm/mmu.c
include/linux/clk-provider.h
Change-Id: I668e3fd58b4ad5db037f700b66f89cdf845094b5
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
b7b3af9 BACKPORT: FROMLIST: Update Inline Encryption from v5 to v6 of patch series
4f6a1f4 ANDROID: ufshcd-crypto: export cap find API
e25d82c ANDROID: block: provide key size as input to inline crypto APIs
3e8cceb ANDROID: block: add KSM op to derive software secret from wrapped key
8173487 ANDROID: fscrypt: add support for hardware-wrapped keys
8aaaa67 ANDROID: block: fix some inline crypto bugs
9f8ee7b ANDROID: block: export symbols needed for modules to use inline crypto
0faba9a FROMLIST: scsi: ufs: add program_key() variant op
403731b ANDROID: ext4, f2fs: enable direct I/O with inline encryption
1fc06ba ANDROID: block: Introduce passthrough keyslot manager
695cfeb ANDROID: dm: add support for passing through inline crypto support
85942bc ANDROID: dm: enable may_passthrough_inline_crypto on some targets
5515324 ANDROID: dm: add dm-default-key target for metadata encryption
792b182 ANDROID: gki_defconfig: enable dm-default-key
3ab1972 ANDROID: block: Prevent crypto fallback for wrapped keys
a142356 ANDROID: dm: add support for passing through derive_raw_secret
0dccdc0 ANDROID: dm: Add wrapped key support in dm-default-key
Git-repo: https://android.googlesource.com/kernel/common/+/refs/heads/android-5.4
Change-Id: Ida31c27ac24457efc1aa0343806e2f32a056167b
Signed-off-by: Gaurav Kashyap <gaurkash@codeaurora.org>
When a buffer is added to the LRU list, a reference is taken which is
not dropped until the buffer is evicted from the LRU list. This is the
correct behavior, however this LRU reference will prevent the buffer
from being dropped. This means that the buffer can't actually be dropped
until it is selected for eviction. There's no bound on the time spent
on the LRU list, which means that the buffer may be undroppable for
very long periods of time. Given that migration involves dropping
buffers, the associated page is now unmigratible for long periods of
time as well. CMA relies on being able to migrate a specific range
of pages, so these these types of failures make CMA significantly
less reliable, especially under high filesystem usage.
Rather than waiting for the LRU algorithm to eventually kick out
the buffer, explicitly remove the buffer from the LRU list when trying
to drop it. There is still the possibility that the buffer
could be added back on the list, but that indicates the buffer is
still in use and would probably have other 'in use' indicates to
prevent dropping.
Change-Id: I253f4ee2069e190c1115afc421dadd27a7fa87dc
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
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Merge 5.4.9 into android-5.4
Changes in 5.4.9
drm/mcde: dsi: Fix invalid pointer dereference if panel cannot be found
nvme_fc: add module to ops template to allow module references
nvme-fc: fix double-free scenarios on hw queues
drm/amdgpu: add check before enabling/disabling broadcast mode
drm/amdgpu: add header line for power profile on Arcturus
drm/amdgpu: add cache flush workaround to gfx8 emit_fence
drm/amd/display: Map DSC resources 1-to-1 if numbers of OPPs and DSCs are equal
drm/amd/display: Fixed kernel panic when booting with DP-to-HDMI dongle
drm/amd/display: Change the delay time before enabling FEC
drm/amd/display: Reset steer fifo before unblanking the stream
drm/amd/display: update dispclk and dppclk vco frequency
nvme/pci: Fix write and poll queue types
nvme/pci: Fix read queue count
iio: st_accel: Fix unused variable warning
iio: adc: max9611: Fix too short conversion time delay
PM / devfreq: Fix devfreq_notifier_call returning errno
PM / devfreq: Set scaling_max_freq to max on OPP notifier error
PM / devfreq: Don't fail devfreq_dev_release if not in list
afs: Fix afs_find_server lookups for ipv4 peers
afs: Fix SELinux setting security label on /afs
RDMA/cma: add missed unregister_pernet_subsys in init failure
rxe: correctly calculate iCRC for unaligned payloads
scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func
scsi: qla2xxx: Use explicit LOGO in target mode
scsi: qla2xxx: Drop superfluous INIT_WORK of del_work
scsi: qla2xxx: Don't call qlt_async_event twice
scsi: qla2xxx: Fix PLOGI payload and ELS IOCB dump length
scsi: qla2xxx: Configure local loop for N2N target
scsi: qla2xxx: Send Notify ACK after N2N PLOGI
scsi: qla2xxx: Don't defer relogin unconditonally
scsi: qla2xxx: Ignore PORT UPDATE after N2N PLOGI
scsi: iscsi: qla4xxx: fix double free in probe
scsi: libsas: stop discovering if oob mode is disconnected
scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
staging/wlan-ng: add CRC32 dependency in Kconfig
drm/nouveau: Move the declaration of struct nouveau_conn_atom up a bit
drm/nouveau: Fix drm-core using atomic code-paths on pre-nv50 hardware
drm/nouveau/kms/nv50-: fix panel scaling
usb: gadget: fix wrong endpoint desc
net: make socket read/write_iter() honor IOCB_NOWAIT
afs: Fix mountpoint parsing
afs: Fix creation calls in the dynamic root to fail with EOPNOTSUPP
raid5: need to set STRIPE_HANDLE for batch head
md: raid1: check rdev before reference in raid1_sync_request func
s390/cpum_sf: Adjust sampling interval to avoid hitting sample limits
s390/cpum_sf: Avoid SBD overflow condition in irq handler
RDMA/counter: Prevent auto-binding a QP which are not tracked with res
IB/mlx4: Follow mirror sequence of device add during device removal
IB/mlx5: Fix steering rule of drop and count
xen-blkback: prevent premature module unload
xen/balloon: fix ballooned page accounting without hotplug enabled
PM / hibernate: memory_bm_find_bit(): Tighten node optimisation
ALSA: hda/realtek - Add Bass Speaker and fixed dac for bass speaker
ALSA: hda/realtek - Enable the bass speaker of ASUS UX431FLC
PCI: Add a helper to check Power Resource Requirements _PR3 existence
ALSA: hda: Allow HDA to be runtime suspended when dGPU is not bound to a driver
PCI: Fix missing inline for pci_pr3_present()
ALSA: hda - fixup for the bass speaker on Lenovo Carbon X1 7th gen
tcp: fix data-race in tcp_recvmsg()
shmem: pin the file in shmem_fault() if mmap_sem is dropped
taskstats: fix data-race
ALSA: hda - Downgrade error message for single-cmd fallback
netfilter: nft_tproxy: Fix port selector on Big Endian
block: add bio_truncate to fix guard_bio_eod
mm: drop mmap_sem before calling balance_dirty_pages() in write fault
ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support code
ALSA: usb-audio: fix set_format altsetting sanity check
ALSA: usb-audio: set the interface format after resume on Dell WD19
ALSA: hda - Apply sync-write workaround to old Intel platforms, too
ALSA: hda/realtek - Add headset Mic no shutup for ALC283
drm/sun4i: hdmi: Remove duplicate cleanup calls
drm/amdgpu/smu: add metrics table lock
drm/amdgpu/smu: add metrics table lock for arcturus (v2)
drm/amdgpu/smu: add metrics table lock for navi (v2)
drm/amdgpu/smu: add metrics table lock for vega20 (v2)
MIPS: BPF: Disable MIPS32 eBPF JIT
MIPS: BPF: eBPF JIT: check for MIPS ISA compliance in Kconfig
MIPS: Avoid VDSO ABI breakage due to global register variable
media: pulse8-cec: fix lost cec_transmit_attempt_done() call
media: cec: CEC 2.0-only bcast messages were ignored
media: cec: avoid decrementing transmit_queue_sz if it is 0
media: cec: check 'transmit_in_progress', not 'transmitting'
mm/memory_hotplug: shrink zones when offlining memory
mm/zsmalloc.c: fix the migrated zspage statistics.
memcg: account security cred as well to kmemcg
mm: move_pages: return valid node id in status if the page is already on the target node
mm/oom: fix pgtables units mismatch in Killed process message
ocfs2: fix the crash due to call ocfs2_get_dlm_debug once less
pstore/ram: Write new dumps to start of recycled zones
pstore/ram: Fix error-path memory leak in persistent_ram_new() callers
gcc-plugins: make it possible to disable CONFIG_GCC_PLUGINS again
locks: print unsigned ino in /proc/locks
selftests/seccomp: Zero out seccomp_notif
seccomp: Check that seccomp_notif is zeroed out by the user
samples/seccomp: Zero out members based on seccomp_notif_sizes
selftests/seccomp: Catch garbage on SECCOMP_IOCTL_NOTIF_RECV
dmaengine: Fix access to uninitialized dma_slave_caps
dmaengine: dma-jz4780: Also break descriptor chains on JZ4725B
Btrfs: fix infinite loop during nocow writeback due to race
compat_ioctl: block: handle Persistent Reservations
compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES
bpf: Fix precision tracking for unbounded scalars
ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
ata: ahci_brcm: Fix AHCI resources management
ata: ahci_brcm: Add missing clock management during recovery
ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
libata: Fix retrieving of active qcs
gpio: xtensa: fix driver build
gpiolib: fix up emulated open drain outputs
clocksource: riscv: add notrace to riscv_sched_clock
riscv: ftrace: correct the condition logic in function graph tracer
rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
tracing: Fix lock inversion in trace_event_enable_tgid_record()
tracing: Avoid memory leak in process_system_preds()
tracing: Have the histogram compare functions convert to u64 first
tracing: Fix endianness bug in histogram trigger
samples/trace_printk: Wait for IRQ work to finish
io_uring: use current task creds instead of allocating a new one
mm/gup: fix memory leak in __gup_benchmark_ioctl
apparmor: fix aa_xattrs_match() may sleep while holding a RCU lock
dmaengine: virt-dma: Fix access after free in vchan_complete()
gen_initramfs_list.sh: fix 'bad variable name' error
ALSA: cs4236: fix error return comparison of an unsigned integer
ALSA: pcm: Yet another missing check of non-cached buffer type
ALSA: firewire-motu: Correct a typo in the clock proc string
scsi: lpfc: Fix rpi release when deleting vport
exit: panic before exit_mm() on global init exit
arm64: Revert support for execute-only user mappings
ftrace: Avoid potential division by zero in function profiler
spi: spi-fsl-dspi: Fix 16-bit word order in 32-bit XSPI mode
drm/msm: include linux/sched/task.h
PM / devfreq: Check NULL governor in available_governors_show
sunrpc: fix crash when cache_head become valid before update
arm64: dts: qcom: msm8998-clamshell: Remove retention idle state
nfsd4: fix up replay_matches_cache()
powerpc: Chunk calls to flush_dcache_range in arch_*_memory
HID: i2c-hid: Reset ALPS touchpads on resume
net/sched: annotate lockless accesses to qdisc->empty
kernel/module.c: wakeup processes in module_wq on module unload
ACPI: sysfs: Change ACPI_MASKABLE_GPE_MAX to 0x100
perf callchain: Fix segfault in thread__resolve_callchain_sample()
iommu/vt-d: Remove incorrect PSI capability check
of: overlay: add_changeset_property() memory leak
cifs: Fix potential softlockups while refreshing DFS cache
firmware: arm_scmi: Avoid double free in error flow
xfs: don't check for AG deadlock for realtime files in bunmapi
platform/x86: pmc_atom: Add Siemens CONNECT X300 to critclk_systems DMI table
netfilter: nf_queue: enqueue skbs with NULL dst
net, sysctl: Fix compiler warning when only cBPF is present
watchdog: tqmx86_wdt: Fix build error
regulator: axp20x: Fix axp20x_set_ramp_delay
regulator: bd70528: Remove .set_ramp_delay for bd70528_ldo_ops
spi: uniphier: Fix FIFO threshold
regulator: axp20x: Fix AXP22x ELDO2 regulator enable bitmask
powerpc/mm: Mark get_slice_psize() & slice_addr_is_low() as notrace
Bluetooth: btusb: fix PM leak in error case of setup
Bluetooth: delete a stray unlock
Bluetooth: Fix memory leak in hci_connect_le_scan
arm64: dts: meson-gxl-s905x-khadas-vim: fix uart_A bluetooth node
arm64: dts: meson-gxm-khadas-vim2: fix uart_A bluetooth node
media: flexcop-usb: ensure -EIO is returned on error condition
regulator: ab8500: Remove AB8505 USB regulator
media: usb: fix memory leak in af9005_identify_state
dt-bindings: clock: renesas: rcar-usb2-clock-sel: Fix typo in example
arm64: dts: meson: odroid-c2: Disable usb_otg bus to avoid power failed warning
phy: renesas: rcar-gen3-usb2: Use platform_get_irq_optional() for optional irq
tty: serial: msm_serial: Fix lockup for sysrq and oops
cifs: Fix lookup of root ses in DFS referral cache
fs: cifs: Fix atime update check vs mtime
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
ath9k_htc: Modify byte order for an error message
ath9k_htc: Discard undersized packets
drm/i915/execlists: Fix annotation for decoupling virtual request
xfs: periodically yield scrub threads to the scheduler
net: add annotations on hh->hh_len lockless accesses
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps
btrfs: get rid of unique workqueue helper functions
Btrfs: only associate the locked page with one async_chunk struct
s390/smp: fix physical to logical CPU map for SMT
mm/sparse.c: mark populate_section_memmap as __meminit
xen/blkback: Avoid unmapping unmapped grant pages
lib/ubsan: don't serialize UBSAN report
efi: Don't attempt to map RCI2 config table if it doesn't exist
perf/x86/intel/bts: Fix the use of page_private()
net: annotate lockless accesses to sk->sk_pacing_shift
hsr: avoid debugfs warning message when module is remove
hsr: fix error handling routine in hsr_dev_finalize()
hsr: fix a race condition in node list insertion and deletion
mm/hugetlb: defer freeing of huge pages if in non-task context
Linux 5.4.9
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8eebcdac421faf74f70af8e8666abfdcdc45c86b
[ Upstream commit 85a8ce62c2eabe28b9d76ca4eecf37922402df93 ]
Some filesystem, such as vfat, may send bio which crosses device boundary,
and the worse thing is that the IO request starting within device boundaries
can contain more than one segment past EOD.
Commit dce30ca9e3 ("fs: fix guard_bio_eod to check for real EOD errors")
tries to fix this issue by returning -EIO for this situation. However,
this way lets fs user code lose chance to handle -EIO, then sync_inodes_sb()
may hang for ever.
Also the current truncating on last segment is dangerous by updating the
last bvec, given bvec table becomes not immutable any more, and fs bio
users may not retrieve the truncated pages via bio_for_each_segment_all() in
its .end_io callback.
Fixes this issue by supporting multi-segment truncating. And the
approach is simpler:
- just update bio size since block layer can make correct bvec with
the updated bio size. Then bvec table becomes really immutable.
- zero all truncated segments for read bio
Cc: Carlos Maiolino <cmaiolino@redhat.com>
Cc: linux-fsdevel@vger.kernel.org
Fixed-by: dce30ca9e3 ("fs: fix guard_bio_eod to check for real EOD errors")
Reported-by: syzbot+2b9e54155c8c25d8d165@syzkaller.appspotmail.com
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Wire up ext4 to support inline encryption via the helper functions which
fs/crypto/ now provides. This includes:
- Adding a mount option 'inlinecrypt' which enables inline encryption
on encrypted files where it can be used.
- Setting the bio_crypt_ctx on bios that will be submitted to an
inline-encrypted file.
Note: submit_bh_wbc() in fs/buffer.c also needed to be patched for
this part, since ext4 sometimes uses ll_rw_block() on file data.
- Not adding logically discontiguous data to bios that will be submitted
to an inline-encrypted file.
- Not doing filesystem-layer crypto on inline-encrypted files.
Bug: 137270441
Test: tested as series; see Ie1b77f7615d6a7a60fdc9105c7ab2200d17636a8
Change-Id: I73dac46ff1eba56a13975c387b20554416ddbad8
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Satya Tangirala <satyat@google.com>
Link: https://patchwork.kernel.org/patch/11214781/
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Merge tag 'for-linus-20190715' of git://git.kernel.dk/linux-block
Pull more block updates from Jens Axboe:
"A later pull request with some followup items. I had some vacation
coming up to the merge window, so certain things items were delayed a
bit. This pull request also contains fixes that came in within the
last few days of the merge window, which I didn't want to push right
before sending you a pull request.
This contains:
- NVMe pull request, mostly fixes, but also a few minor items on the
feature side that were timing constrained (Christoph et al)
- Report zones fixes (Damien)
- Removal of dead code (Damien)
- Turn on cgroup psi memstall (Josef)
- block cgroup MAINTAINERS entry (Konstantin)
- Flush init fix (Josef)
- blk-throttle low iops timing fix (Konstantin)
- nbd resize fixes (Mike)
- nbd 0 blocksize crash fix (Xiubo)
- block integrity error leak fix (Wenwen)
- blk-cgroup writeback and priority inheritance fixes (Tejun)"
* tag 'for-linus-20190715' of git://git.kernel.dk/linux-block: (42 commits)
MAINTAINERS: add entry for block io cgroup
null_blk: fixup ->report_zones() for !CONFIG_BLK_DEV_ZONED
block: Limit zone array allocation size
sd_zbc: Fix report zones buffer allocation
block: Kill gfp_t argument of blkdev_report_zones()
block: Allow mapping of vmalloc-ed buffers
block/bio-integrity: fix a memory leak bug
nvme: fix NULL deref for fabrics options
nbd: add netlink reconfigure resize support
nbd: fix crash when the blksize is zero
block: Disable write plugging for zoned block devices
block: Fix elevator name declaration
block: Remove unused definitions
nvme: fix regression upon hot device removal and insertion
blk-throttle: fix zero wait time for iops throttled group
block: Fix potential overflow in blk_report_zones()
blkcg: implement REQ_CGROUP_PUNT
blkcg, writeback: Implement wbc_blkcg_css()
blkcg, writeback: Add wbc->no_cgroup_owner
blkcg, writeback: Rename wbc_account_io() to wbc_account_cgroup_owner()
...
wbc_account_io() does a very specific job - try to see which cgroup is
actually dirtying an inode and transfer its ownership to the majority
dirtier if needed. The name is too generic and confusing. Let's
rename it to something more specific.
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This effectively reverts a6d639da63 ("fs: factor out a
__generic_write_end helper") as we now open code what is left of that
helper in iomap.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Add SPDX license identifiers to all files which:
- Have no license information of any form
- Have EXPORT_.*_SYMBOL_GPL inside which was used in the
initial scan/conversion to ignore the file
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In iomap_write_end, we're not holding a page reference anymore when
calling the page_done callback, but the callback needs that reference to
access the page. To fix that, move the put_page call in
__generic_write_end into the callers of __generic_write_end. Then, in
iomap_write_end, put the page after calling the page_done callback.
Reported-by: Jan Kara <jack@suse.cz>
Fixes: 63899c6f88 ("iomap: add a page_done callback")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
The VFS-internal __generic_write_end helper always returns the value of
its @copied argument. This can be confusing, and it isn't very useful
anyway, so turn __generic_write_end into a function returning void
instead.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
guard_bio_eod() can truncate a segment in bio to allow it to do IO on
odd last sectors of a device.
It already checks if the IO starts past EOD, but it does not consider
the possibility of an IO request starting within device boundaries can
contain more than one segment past EOD.
In such cases, truncated_bytes can be bigger than PAGE_SIZE, and will
underflow bvec->bv_len.
Fix this by checking if truncated_bytes is lower than PAGE_SIZE.
This situation has been found on filesystems such as isofs and vfat,
which doesn't check the device size before mount, if the device is
smaller than the filesystem itself, a readahead on such filesystem,
which spans EOD, can trigger this situation, leading a call to
zero_user() with a wrong size possibly corrupting memory.
I didn't see any crash, or didn't let the system run long enough to
check if memory corruption will be hit somewhere, but adding
instrumentation to guard_bio_end() to check truncated_bytes size, was
enough to see the error.
The following script can trigger the error.
MNT=/mnt
IMG=./DISK.img
DEV=/dev/loop0
mkfs.vfat $IMG
mount $IMG $MNT
cp -R /etc $MNT &> /dev/null
umount $MNT
losetup -D
losetup --find --show --sizelimit 16247280 $IMG
mount $DEV $MNT
find $MNT -type f -exec cat {} + >/dev/null
Kudos to Eric Sandeen for coming up with the reproducer above
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'v5.0-rc6' into for-5.1/block
Pull in 5.0-rc6 to avoid a dumb merge conflict with fs/iomap.c.
This is needed since io_uring is now based on the block branch,
to avoid a conflict between the multi-page bvecs and the bits
of io_uring that touch the core block parts.
* tag 'v5.0-rc6': (525 commits)
Linux 5.0-rc6
x86/mm: Make set_pmd_at() paravirt aware
MAINTAINERS: Update the ocores i2c bus driver maintainer, etc
blk-mq: remove duplicated definition of blk_mq_freeze_queue
Blk-iolatency: warn on negative inflight IO counter
blk-iolatency: fix IO hang due to negative inflight counter
MAINTAINERS: unify reference to xen-devel list
x86/mm/cpa: Fix set_mce_nospec()
futex: Handle early deadlock return correctly
futex: Fix barrier comment
net: dsa: b53: Fix for failure when irq is not defined in dt
blktrace: Show requests without sector
mips: cm: reprime error cause
mips: loongson64: remove unreachable(), fix loongson_poweroff().
sit: check if IPv6 enabled before calling ip6_err_gen_icmpv6_unreach()
geneve: should not call rt6_lookup() when ipv6 was disabled
KVM: nVMX: unconditionally cancel preemption timer in free_nested (CVE-2019-7221)
KVM: x86: work around leak of uninitialized stack contents (CVE-2019-7222)
kvm: fix kvm_ioctl_create_device() reference counting (CVE-2019-6974)
signal: Better detection of synchronous signals
...
Once multi-page bvec is enabled, the last bvec may include more than one
page, this patch use mp_bvec_last_segment() to truncate the bio.
Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When something let __find_get_block_slow() hit all_mapped path, it calls
printk() for 100+ times per a second. But there is no need to print same
message with such high frequency; it is just asking for stall warning, or
at least bloating log files.
[ 399.866302][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8
[ 399.873324][T15342] b_state=0x00000029, b_size=512
[ 399.878403][T15342] device loop0 blocksize: 4096
[ 399.883296][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8
[ 399.890400][T15342] b_state=0x00000029, b_size=512
[ 399.895595][T15342] device loop0 blocksize: 4096
[ 399.900556][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8
[ 399.907471][T15342] b_state=0x00000029, b_size=512
[ 399.912506][T15342] device loop0 blocksize: 4096
This patch reduces frequency to up to once per a second, in addition to
concatenating three lines into one.
[ 399.866302][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8, b_state=0x00000029, b_size=512, device loop0 blocksize: 4096
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This is already done for us internally by the signal machinery.
[akpm@linux-foundation.org: fix fs/buffer.c]
Link: http://lkml.kernel.org/r/20181116002713.8474-7-dave@stgolabs.net
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
One of the goals of this series is to remove a separate reference to
the css of the bio. This can and should be accessed via bio_blkcg(). In
this patch, wbc_init_bio() now requires a bio to have a device
associated with it.
Signed-off-by: Dennis Zhou <dennis@kernel.org>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'for-linus-20181102' of git://git.kernel.dk/linux-block
Pull block layer fixes from Jens Axboe:
"The biggest part of this pull request is the revert of the blkcg
cleanup series. It had one fix earlier for a stacked device issue, but
another one was reported. Rather than play whack-a-mole with this,
revert the entire series and try again for the next kernel release.
Apart from that, only small fixes/changes.
Summary:
- Indentation fixup for mtip32xx (Colin Ian King)
- The blkcg cleanup series revert (Dennis Zhou)
- Two NVMe fixes. One fixing a regression in the nvme request
initialization in this merge window, causing nvme-fc to not work.
The other is a suspend/resume p2p resource issue (James, Keith)
- Fix sg discard merge, allowing us to merge in cases where we didn't
before (Jianchao Wang)
- Call rq_qos_exit() after the queue is frozen, preventing a hang
(Ming)
- Fix brd queue setup, fixing an oops if we fail setting up all
devices (Ming)"
* tag 'for-linus-20181102' of git://git.kernel.dk/linux-block:
nvme-pci: fix conflicting p2p resource adds
nvme-fc: fix request private initialization
blkcg: revert blkcg cleanups series
block: brd: associate with queue until adding disk
block: call rq_qos_exit() after queue is frozen
mtip32xx: clean an indentation issue, remove extraneous tabs
block: fix the DISCARD request merge
Pull XArray conversion from Matthew Wilcox:
"The XArray provides an improved interface to the radix tree data
structure, providing locking as part of the API, specifying GFP flags
at allocation time, eliminating preloading, less re-walking the tree,
more efficient iterations and not exposing RCU-protected pointers to
its users.
This patch set
1. Introduces the XArray implementation
2. Converts the pagecache to use it
3. Converts memremap to use it
The page cache is the most complex and important user of the radix
tree, so converting it was most important. Converting the memremap
code removes the only other user of the multiorder code, which allows
us to remove the radix tree code that supported it.
I have 40+ followup patches to convert many other users of the radix
tree over to the XArray, but I'd like to get this part in first. The
other conversions haven't been in linux-next and aren't suitable for
applying yet, but you can see them in the xarray-conv branch if you're
interested"
* 'xarray' of git://git.infradead.org/users/willy/linux-dax: (90 commits)
radix tree: Remove multiorder support
radix tree test: Convert multiorder tests to XArray
radix tree tests: Convert item_delete_rcu to XArray
radix tree tests: Convert item_kill_tree to XArray
radix tree tests: Move item_insert_order
radix tree test suite: Remove multiorder benchmarking
radix tree test suite: Remove __item_insert
memremap: Convert to XArray
xarray: Add range store functionality
xarray: Move multiorder_check to in-kernel tests
xarray: Move multiorder_shrink to kernel tests
xarray: Move multiorder account test in-kernel
radix tree test suite: Convert iteration test to XArray
radix tree test suite: Convert tag_tagged_items to XArray
radix tree: Remove radix_tree_clear_tags
radix tree: Remove radix_tree_maybe_preload_order
radix tree: Remove split/join code
radix tree: Remove radix_tree_update_node_t
page cache: Finish XArray conversion
dax: Convert page fault handlers to XArray
...
One of the goals of this series is to remove a separate reference to
the css of the bio. This can and should be accessed via bio_blkcg. In
this patch, the wbc_init_bio call is changed such that it must be called
after a queue has been associated with the bio.
Signed-off-by: Dennis Zhou <dennisszhou@gmail.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The buffer_head can consume a significant amount of system memory and is
directly related to the amount of page cache. In our production
environment we have observed that a lot of machines are spending a
significant amount of memory as buffer_head and can not be left as
system memory overhead.
Charging buffer_head is not as simple as adding __GFP_ACCOUNT to the
allocation. The buffer_heads can be allocated in a memcg different from
the memcg of the page for which buffer_heads are being allocated. One
concrete example is memory reclaim. The reclaim can trigger I/O of
pages of any memcg on the system. So, the right way to charge
buffer_head is to extract the memcg from the page for which buffer_heads
are being allocated and then use targeted memcg charging API.
[shakeelb@google.com: use __GFP_ACCOUNT for directed memcg charging]
Link: http://lkml.kernel.org/r/20180702220208.213380-1-shakeelb@google.com
Link: http://lkml.kernel.org/r/20180627191250.209150-3-shakeelb@google.com
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In iomap_to_bh, not only mark buffer heads in IOMAP_UNWRITTEN maps as
new, but also buffer heads in IOMAP_MAPPED maps with the IOMAP_F_NEW
flag set. This will be used by filesystems like gfs2, which allocate
blocks in iomap->begin.
Minor corrections to the comment for IOMAP_UNWRITTEN maps.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Bits of the buffer.c based write_end implementations that don't know
about buffer_heads and can be reused by other implementations.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This function is only used by the iomap code, depends on being called
from it, and will soon stop poking into buffer head internals.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Pull vfs thaw updates from Al Viro:
"An ancient series that has fallen through the cracks in the previous
cycle"
* 'work.thaw' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
buffer.c: call thaw_super during emergency thaw
vfs: factor sb iteration out of do_emergency_remount
Remove the address_space ->tree_lock and use the xa_lock newly added to
the radix_tree_root. Rename the address_space ->page_tree to ->i_pages,
since we don't really care that it's a tree.
[willy@infradead.org: fix nds32, fs/dax.c]
Link: http://lkml.kernel.org/r/20180406145415.GB20605@bombadil.infradead.orgLink: http://lkml.kernel.org/r/20180313132639.17387-9-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
XFS currently contains a copy-and-paste of __set_page_dirty(). Export
it from buffer.c instead.
Link: http://lkml.kernel.org/r/20180313132639.17387-6-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Prior to commit d47992f86b ("mm: change invalidatepage prototype to
accept length"), an offset of 0 meant that the full page was being
invalidated. After that commit, we need to instead check the length.
Jan said:
:
: The only possible issue is that try_to_release_page() was called more
: often than necessary. Otherwise the issue is harmless but still it's good
: to have this fixed.
Link: http://lkml.kernel.org/r/x49fu5rtnzs.fsf@segfault.boston.devel.redhat.com
Fixes: d47992f86b ("mm: change invalidatepage prototype to accept length")
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Lukas Czerner <lczerner@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There are 2 distinct freezing mechanisms - one operates on block
devices and another one directly on super blocks. Both end up with the
same result, but thaw of only one of these does not thaw the other.
In particular fsfreeze --freeze uses the ioctl variant going to the
super block. Since prior to this patch emergency thaw was not doing
a relevant thaw, filesystems frozen with this method remained
unaffected.
The patch is a hack which adds blind unfreezing.
In order to keep the super block write-locked the whole time the code
is shuffled around and the newly introduced __iterate_supers is
employed.
Signed-off-by: Mateusz Guzik <mguzik@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull misc vfs updates from Al Viro:
"All kinds of misc stuff, without any unifying topic, from various
people.
Neil's d_anon patch, several bugfixes, introduction of kvmalloc
analogue of kmemdup_user(), extending bitfield.h to deal with
fixed-endians, assorted cleanups all over the place..."
* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits)
alpha: osf_sys.c: use timespec64 where appropriate
alpha: osf_sys.c: fix put_tv32 regression
jffs2: Fix use-after-free bug in jffs2_iget()'s error handling path
dcache: delete unused d_hash_mask
dcache: subtract d_hash_shift from 32 in advance
fs/buffer.c: fold init_buffer() into init_page_buffers()
fs: fold __inode_permission() into inode_permission()
fs: add RWF_APPEND
sctp: use vmemdup_user() rather than badly open-coding memdup_user()
snd_ctl_elem_init_enum_names(): switch to vmemdup_user()
replace_user_tlv(): switch to vmemdup_user()
new primitive: vmemdup_user()
memdup_user(): switch to GFP_USER
eventfd: fold eventfd_ctx_get() into eventfd_ctx_fileget()
eventfd: fold eventfd_ctx_read() into eventfd_read()
eventfd: convert to use anon_inode_getfd()
nfs4file: get rid of pointless include of btrfs.h
uvc_v4l2: clean copyin/copyout up
vme_user: don't use __copy_..._user()
usx2y: don't bother with memdup_user() for 16-byte structure
...
Since commit e76004093d ("fs/buffer.c: remove unnecessary init
operation after allocating buffer_head"), there are no callers of
init_buffer() outside of init_page_buffers(). So just fold it into
init_page_buffers().
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This patch converts 3 users to bio_last_bvec_all(), so that we can go
ahead and convert to multipage bvec.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Every pagevec_init user claims the pages being released are hot even in
cases where it is unlikely the pages are hot. As no one cares about the
hotness of pages being released to the allocator, just ditch the
parameter.
No performance impact is expected as the overhead is marginal. The
parameter is removed simply because it is a bit stupid to have a useless
parameter copied everywhere.
Link: http://lkml.kernel.org/r/20171018075952.10627-6-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull core block layer updates from Jens Axboe:
"This is the main pull request for block storage for 4.15-rc1.
Nothing out of the ordinary in here, and no API changes or anything
like that. Just various new features for drivers, core changes, etc.
In particular, this pull request contains:
- A patch series from Bart, closing the whole on blk/scsi-mq queue
quescing.
- A series from Christoph, building towards hidden gendisks (for
multipath) and ability to move bio chains around.
- NVMe
- Support for native multipath for NVMe (Christoph).
- Userspace notifications for AENs (Keith).
- Command side-effects support (Keith).
- SGL support (Chaitanya Kulkarni)
- FC fixes and improvements (James Smart)
- Lots of fixes and tweaks (Various)
- bcache
- New maintainer (Michael Lyle)
- Writeback control improvements (Michael)
- Various fixes (Coly, Elena, Eric, Liang, et al)
- lightnvm updates, mostly centered around the pblk interface
(Javier, Hans, and Rakesh).
- Removal of unused bio/bvec kmap atomic interfaces (me, Christoph)
- Writeback series that fix the much discussed hundreds of millions
of sync-all units. This goes all the way, as discussed previously
(me).
- Fix for missing wakeup on writeback timer adjustments (Yafang
Shao).
- Fix laptop mode on blk-mq (me).
- {mq,name} tupple lookup for IO schedulers, allowing us to have
alias names. This means you can use 'deadline' on both !mq and on
mq (where it's called mq-deadline). (me).
- blktrace race fix, oopsing on sg load (me).
- blk-mq optimizations (me).
- Obscure waitqueue race fix for kyber (Omar).
- NBD fixes (Josef).
- Disable writeback throttling by default on bfq, like we do on cfq
(Luca Miccio).
- Series from Ming that enable us to treat flush requests on blk-mq
like any other request. This is a really nice cleanup.
- Series from Ming that improves merging on blk-mq with schedulers,
getting us closer to flipping the switch on scsi-mq again.
- BFQ updates (Paolo).
- blk-mq atomic flags memory ordering fixes (Peter Z).
- Loop cgroup support (Shaohua).
- Lots of minor fixes from lots of different folks, both for core and
driver code"
* 'for-4.15/block' of git://git.kernel.dk/linux-block: (294 commits)
nvme: fix visibility of "uuid" ns attribute
blk-mq: fixup some comment typos and lengths
ide: ide-atapi: fix compile error with defining macro DEBUG
blk-mq: improve tag waiting setup for non-shared tags
brd: remove unused brd_mutex
blk-mq: only run the hardware queue if IO is pending
block: avoid null pointer dereference on null disk
fs: guard_bio_eod() needs to consider partitions
xtensa/simdisk: fix compile error
nvme: expose subsys attribute to sysfs
nvme: create 'slaves' and 'holders' entries for hidden controllers
block: create 'slaves' and 'holders' entries for hidden gendisks
nvme: also expose the namespace identification sysfs files for mpath nodes
nvme: implement multipath access to nvme subsystems
nvme: track shared namespaces
nvme: introduce a nvme_ns_ids structure
nvme: track subsystems
block, nvme: Introduce blk_mq_req_flags_t
block, scsi: Make SCSI quiesce and resume work reliably
block: Add the QUEUE_FLAG_PREEMPT_ONLY request queue flag
...
two data corruption bugs involving DAX, as well as a corruption bug
after a crash during a racing fallocate and delayed allocation.
Finally, a number of cleanups and optimizations.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
- Add support for online resizing of file systems with bigalloc
- Fix a two data corruption bugs involving DAX, as well as a corruption
bug after a crash during a racing fallocate and delayed allocation.
- Finally, a number of cleanups and optimizations.
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: improve smp scalability for inode generation
ext4: add support for online resizing with bigalloc
ext4: mention noload when recovering on read-only device
Documentation: fix little inconsistencies
ext4: convert timers to use timer_setup()
jbd2: convert timers to use timer_setup()
ext4: remove duplicate extended attributes defs
ext4: add ext4_should_use_dax()
ext4: add sanity check for encryption + DAX
ext4: prevent data corruption with journaling + DAX
ext4: prevent data corruption with inline data + DAX
ext4: fix interaction between i_size, fallocate, and delalloc after a crash
ext4: retry allocations conservatively
ext4: Switch to iomap for SEEK_HOLE / SEEK_DATA
ext4: Add iomap support for inline data
iomap: Add IOMAP_F_DATA_INLINE flag
iomap: Switch from blkno to disk offset
guard_bio_eod() needs to look at the partition capacity, not just the
capacity of the whole device, when determining if truncation is
necessary.
[ 60.268688] attempt to access beyond end of device
[ 60.268690] unknown-block(9,1): rw=0, want=67103509, limit=67103506
[ 60.268693] buffer_io_error: 2 callbacks suppressed
[ 60.268696] Buffer I/O error on dev md1p7, logical block 4524305, async page read
Fixes: 74d46992e0 ("block: replace bi_bdev with a gendisk pointer and partitions index")
Cc: stable@vger.kernel.org # v4.13
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Edwards <gedwards@ddn.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Please do not apply this to mainline directly, instead please re-run the
coccinelle script shown below and apply its output.
For several reasons, it is desirable to use {READ,WRITE}_ONCE() in
preference to ACCESS_ONCE(), and new code is expected to use one of the
former. So far, there's been no reason to change most existing uses of
ACCESS_ONCE(), as these aren't harmful, and changing them results in
churn.
However, for some features, the read/write distinction is critical to
correct operation. To distinguish these cases, separate read/write
accessors must be used. This patch migrates (most) remaining
ACCESS_ONCE() instances to {READ,WRITE}_ONCE(), using the following
coccinelle script:
----
// Convert trivial ACCESS_ONCE() uses to equivalent READ_ONCE() and
// WRITE_ONCE()
// $ make coccicheck COCCI=/home/mark/once.cocci SPFLAGS="--include-headers" MODE=patch
virtual patch
@ depends on patch @
expression E1, E2;
@@
- ACCESS_ONCE(E1) = E2
+ WRITE_ONCE(E1, E2)
@ depends on patch @
expression E;
@@
- ACCESS_ONCE(E)
+ READ_ONCE(E)
----
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: davem@davemloft.net
Cc: linux-arch@vger.kernel.org
Cc: mpe@ellerman.id.au
Cc: shuah@kernel.org
Cc: snitzer@redhat.com
Cc: thor.thayer@linux.intel.com
Cc: tj@kernel.org
Cc: viro@zeniv.linux.org.uk
Cc: will.deacon@arm.com
Link: http://lkml.kernel.org/r/1508792849-3115-19-git-send-email-paulmck@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Since the previous commit removed any case where grow_buffers()
would return failure due to memory allocations, we can safely
remove the case where we have to call free_more_memory() in
this function.
Since this is also the last user of free_more_memory(), kill
it off completely.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We currently use it for find_or_create_page(), which means that it
cannot fail. Ensure we also pass in 'retry == true' to
alloc_page_buffers(), which also ensure that it cannot fail.
After this, there are no failure cases in grow_dev_page() that
occur because of a failed memory allocation.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Instead of adding weird retry logic in that function, utilize
__GFP_NOFAIL to ensure that the vm takes care of handling any
potential retries appropriately. This means we don't have to
call free_more_memory() from here.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Replace iomap->blkno, the sector number, with iomap->addr, the disk
offset in bytes. For invalid disk offsets, use the special value
IOMAP_NULL_ADDR instead of IOMAP_NULL_BLOCK.
This allows to use iomap for mappings which are not block aligned, such
as inline data on ext4.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> # iomap, xfs
Reviewed-by: Jan Kara <jack@suse.cz>
Pull block layer updates from Jens Axboe:
"This is the first pull request for 4.14, containing most of the code
changes. It's a quiet series this round, which I think we needed after
the churn of the last few series. This contains:
- Fix for a registration race in loop, from Anton Volkov.
- Overflow complaint fix from Arnd for DAC960.
- Series of drbd changes from the usual suspects.
- Conversion of the stec/skd driver to blk-mq. From Bart.
- A few BFQ improvements/fixes from Paolo.
- CFQ improvement from Ritesh, allowing idling for group idle.
- A few fixes found by Dan's smatch, courtesy of Dan.
- A warning fixup for a race between changing the IO scheduler and
device remova. From David Jeffery.
- A few nbd fixes from Josef.
- Support for cgroup info in blktrace, from Shaohua.
- Also from Shaohua, new features in the null_blk driver to allow it
to actually hold data, among other things.
- Various corner cases and error handling fixes from Weiping Zhang.
- Improvements to the IO stats tracking for blk-mq from me. Can
drastically improve performance for fast devices and/or big
machines.
- Series from Christoph removing bi_bdev as being needed for IO
submission, in preparation for nvme multipathing code.
- Series from Bart, including various cleanups and fixes for switch
fall through case complaints"
* 'for-4.14/block' of git://git.kernel.dk/linux-block: (162 commits)
kernfs: checking for IS_ERR() instead of NULL
drbd: remove BIOSET_NEED_RESCUER flag from drbd_{md_,}io_bio_set
drbd: Fix allyesconfig build, fix recent commit
drbd: switch from kmalloc() to kmalloc_array()
drbd: abort drbd_start_resync if there is no connection
drbd: move global variables to drbd namespace and make some static
drbd: rename "usermode_helper" to "drbd_usermode_helper"
drbd: fix race between handshake and admin disconnect/down
drbd: fix potential deadlock when trying to detach during handshake
drbd: A single dot should be put into a sequence.
drbd: fix rmmod cleanup, remove _all_ debugfs entries
drbd: Use setup_timer() instead of init_timer() to simplify the code.
drbd: fix potential get_ldev/put_ldev refcount imbalance during attach
drbd: new disk-option disable-write-same
drbd: Fix resource role for newly created resources in events2
drbd: mark symbols static where possible
drbd: Send P_NEG_ACK upon write error in protocol != C
drbd: add explicit plugging when submitting batches
drbd: change list_for_each_safe to while(list_first_entry_or_null)
drbd: introduce drbd_recv_header_maybe_unplug
...
All users of pagevec_lookup() and pagevec_lookup_range() now pass
PAGEVEC_SIZE as a desired number of pages.
Just drop the argument.
Link: http://lkml.kernel.org/r/20170726114704.7626-11-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We want only pages from given range in page_cache_seek_hole_data(). Use
pagevec_lookup_range() instead of pagevec_lookup() and remove
unnecessary code.
Note that the check for getting less pages than desired can be removed
because index gets updated by pagevec_lookup_range().
Link: http://lkml.kernel.org/r/20170726114704.7626-9-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit e64855c6cf ("fs: Add helper to clean bdev aliases under a bh
and use it") added a wrapper for clean_bdev_aliases() that invalidates
bdev aliases underlying a single buffer head.
However this has caused a performance regression for bonnie++ benchmark
on ext4 filesystem when delayed allocation is turned off (ext3 mode) -
average of 3 runs:
Hmean SeqOut Char 164787.55 ( 0.00%) 107189.06 (-34.95%)
Hmean SeqOut Block 219883.89 ( 0.00%) 168870.32 (-23.20%)
The reason for this regression is that clean_bdev_aliases() is slower
when called for a single block because pagevec_lookup() it uses will end
up iterating through the radix tree until it finds a page (which may
take a while) but we are only interested whether there's a page at a
particular index.
Fix the problem by using pagevec_lookup_range() instead which avoids the
needless iteration.
Fixes: e64855c6cf ("fs: Add helper to clean bdev aliases under a bh and use it")
Link: http://lkml.kernel.org/r/20170726114704.7626-5-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make pagevec_lookup() (and underlying find_get_pages()) update index to
the next page where iteration should continue. Most callers want this
and also pagevec_lookup_tag() already does this.
Link: http://lkml.kernel.org/r/20170726114704.7626-3-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
