* origin/upstream-f2fs-stable-linux-4.19.y:
f2fs: fix to avoid accessing xattr across the boundary
f2fs: fix to avoid potential race on sbi->unusable_block_count access/update
f2fs: add tracepoint for f2fs_filemap_fault()
f2fs: introduce DATA_GENERIC_ENHANCE
f2fs: fix to handle error in f2fs_disable_checkpoint()
f2fs: remove redundant check in f2fs_file_write_iter()
f2fs: fix to be aware of readonly device in write_checkpoint()
f2fs: fix to skip recovery on readonly device
f2fs: fix to consider multiple device for readonly check
f2fs: relocate chksum_offset for large_nat_bitmap feature
f2fs: allow unfixed f2fs_checkpoint.checksum_offset
f2fs: Replace spaces with tab
f2fs: insert space before the open parenthesis '('
f2fs: allow address pointer number of dnode aligning to specified size
f2fs: introduce f2fs_read_single_page() for cleanup
f2fs: mark is_extension_exist() inline
f2fs: fix to set FI_UPDATE_WRITE correctly
f2fs: fix to avoid panic in f2fs_inplace_write_data()
f2fs: fix to do sanity check on valid block count of segment
f2fs: fix to do sanity check on valid node/block count
f2fs: fix to avoid panic in do_recover_data()
f2fs: fix to do sanity check on free nid
f2fs: fix to do checksum even if inode page is uptodate
f2fs: fix to avoid panic in f2fs_remove_inode_page()
f2fs: fix to clear dirty inode in error path of f2fs_iget()
f2fs: remove new blank line of f2fs kernel message
f2fs: fix wrong __is_meta_io() macro
f2fs: fix to avoid panic in dec_valid_node_count()
f2fs: fix to avoid panic in dec_valid_block_count()
f2fs: fix to use inline space only if inline_xattr is enable
f2fs: fix to retrieve inline xattr space
f2fs: fix error path of recovery
f2fs: fix to avoid deadloop in foreground GC
f2fs: data: fix warning Using plain integer as NULL pointer
f2fs: add tracepoint for f2fs_file_write_iter()
f2fs: add comment for conditional compilation statement
f2fs: fix potential recursive call when enabling data_flush
f2fs: improve discard handling with multi-device volumes
f2fs: Reduce zoned block device memory usage
f2fs: Fix use of number of devices
Change-Id: I5df9e9906428ef2eb852838ec4f598599e0e5c63
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
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Merge 4.19.36 into android-4.19
Changes in 4.19.36
ARC: u-boot args: check that magic number is correct
arc: hsdk_defconfig: Enable CONFIG_BLK_DEV_RAM
inotify: Fix fsnotify_mark refcount leak in inotify_update_existing_watch()
perf/core: Restore mmap record type correctly
ext4: avoid panic during forced reboot
ext4: add missing brelse() in add_new_gdb_meta_bg()
ext4: report real fs size after failed resize
ALSA: echoaudio: add a check for ioremap_nocache
ALSA: sb8: add a check for request_region
auxdisplay: hd44780: Fix memory leak on ->remove()
drm/udl: use drm_gem_object_put_unlocked.
IB/mlx4: Fix race condition between catas error reset and aliasguid flows
i40iw: Avoid panic when handling the inetdev event
mmc: davinci: remove extraneous __init annotation
ALSA: opl3: fix mismatch between snd_opl3_drum_switch definition and declaration
thermal/intel_powerclamp: fix __percpu declaration of worker_data
thermal: samsung: Fix incorrect check after code merge
thermal: bcm2835: Fix crash in bcm2835_thermal_debugfs
thermal/int340x_thermal: Add additional UUIDs
thermal/int340x_thermal: fix mode setting
thermal/intel_powerclamp: fix truncated kthread name
scsi: iscsi: flush running unbind operations when removing a session
sched/cpufreq: Fix 32-bit math overflow
sched/core: Fix buffer overflow in cgroup2 property cpu.max
x86/mm: Don't leak kernel addresses
tools/power turbostat: return the exit status of a command
perf list: Don't forget to drop the reference to the allocated thread_map
perf config: Fix an error in the config template documentation
perf config: Fix a memory leak in collect_config()
perf build-id: Fix memory leak in print_sdt_events()
perf top: Fix error handling in cmd_top()
perf hist: Add missing map__put() in error case
perf evsel: Free evsel->counts in perf_evsel__exit()
perf tests: Fix a memory leak of cpu_map object in the openat_syscall_event_on_all_cpus test
perf tests: Fix memory leak by expr__find_other() in test__expr()
perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test()
ACPI / utils: Drop reference in test for device presence
PM / Domains: Avoid a potential deadlock
blk-iolatency: #include "blk.h"
drm/exynos/mixer: fix MIXER shadow registry synchronisation code
irqchip/stm32: Don't clear rising/falling config registers at init
irqchip/mbigen: Don't clear eventid when freeing an MSI
x86/hpet: Prevent potential NULL pointer dereference
x86/hyperv: Prevent potential NULL pointer dereference
x86/cpu/cyrix: Use correct macros for Cyrix calls on Geode processors
drm/nouveau/debugfs: Fix check of pm_runtime_get_sync failure
iommu/vt-d: Check capability before disabling protected memory
x86/hw_breakpoints: Make default case in hw_breakpoint_arch_parse() return an error
fix incorrect error code mapping for OBJECTID_NOT_FOUND
x86/gart: Exclude GART aperture from kcore
ext4: prohibit fstrim in norecovery mode
drm/cirrus: Use drm_framebuffer_put to avoid kernel oops in clean-up
gpio: pxa: handle corner case of unprobed device
rsi: improve kernel thread handling to fix kernel panic
f2fs: fix to avoid NULL pointer dereference on se->discard_map
9p: do not trust pdu content for stat item size
9p locks: add mount option for lock retry interval
ASoC: Fix UBSAN warning at snd_soc_get/put_volsw_sx()
f2fs: fix to do sanity check with current segment number
netfilter: xt_cgroup: shrink size of v2 path
serial: uartps: console_setup() can't be placed to init section
powerpc/pseries: Remove prrn_work workqueue
media: au0828: cannot kfree dev before usb disconnect
Bluetooth: Fix debugfs NULL pointer dereference
HID: i2c-hid: override HID descriptors for certain devices
pinctrl: core: make sure strcmp() doesn't get a null parameter
ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms
usbip: fix vhci_hcd controller counting
ACPI / SBS: Fix GPE storm on recent MacBookPro's
HID: usbhid: Add quirk for Redragon/Dragonrise Seymur 2
KVM: nVMX: restore host state in nested_vmx_vmexit for VMFail
compiler.h: update definition of unreachable()
netfilter: nf_flow_table: remove flowtable hook flush routine in netns exit routine
f2fs: cleanup dirty pages if recover failed
net: stmmac: Set OWN bit for jumbo frames
cifs: fallback to older infolevels on findfirst queryinfo retry
kernel: hung_task.c: disable on suspend
platform/x86: Add Intel AtomISP2 dummy / power-management driver
drm/ttm: Fix bo_global and mem_global kfree error
ALSA: hda: fix front speakers on Huawei MBXP
ACPI: EC / PM: Disable non-wakeup GPEs for suspend-to-idle
net/rds: fix warn in rds_message_alloc_sgs
xfrm: destroy xfrm_state synchronously on net exit path
crypto: sha256/arm - fix crash bug in Thumb2 build
crypto: sha512/arm - fix crash bug in Thumb2 build
net: ip6_gre: fix possible NULL pointer dereference in ip6erspan_set_version
iommu/dmar: Fix buffer overflow during PCI bus notification
scsi: core: Avoid that system resume triggers a kernel warning
soc/tegra: pmc: Drop locking from tegra_powergate_is_powered()
lkdtm: Print real addresses
lkdtm: Add tests for NULL pointer dereference
drm/panel: panel-innolux: set display off in innolux_panel_unprepare
crypto: axis - fix for recursive locking from bottom half
Revert "ACPI / EC: Remove old CLEAR_ON_RESUME quirk"
coresight: cpu-debug: Support for CA73 CPUs
PCI: Blacklist power management of Gigabyte X299 DESIGNARE EX PCIe ports
drm/nouveau/volt/gf117: fix speedo readout register
ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t
drm/amdkfd: use init_mqd function to allocate object for hid_mqd (CI)
appletalk: Fix use-after-free in atalk_proc_exit
lib/div64.c: off by one in shift
rxrpc: Fix client call connect/disconnect race
f2fs: fix to dirty inode for i_mode recovery
include/linux/swap.h: use offsetof() instead of custom __swapoffset macro
bpf: fix use after free in bpf_evict_inode
IB/hfi1: Failed to drain send queue when QP is put into error state
mm: hide incomplete nr_indirectly_reclaimable in /proc/zoneinfo
mm: hide incomplete nr_indirectly_reclaimable in sysfs
appletalk: Fix compile regression
Linux 4.19.36
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 930c9f9125 ]
rxrpc_disconnect_client_call() reads the call's connection ID protocol
value (call->cid) as part of that function's variable declarations. This
is bad because it's not inside the locked section and so may race with
someone granting use of the channel to the call.
This manifests as an assertion failure (see below) where the call in the
presumed channel (0 because call->cid wasn't set when we read it) doesn't
match the call attached to the channel we were actually granted (if 1, 2 or
3).
Fix this by moving the read and dependent calculations inside of the
channel_lock section. Also, only set the channel number and pointer
variables if cid is not zero (ie. unset).
This problem can be induced by injecting an occasional error in
rxrpc_wait_for_channel() before the call to schedule().
Make two further changes also:
(1) Add a trace for wait failure in rxrpc_connect_call().
(2) Drop channel_lock before BUG'ing in the case of the assertion failure.
The failure causes a trace akin to the following:
rxrpc: Assertion failed - 18446612685268945920(0xffff8880beab8c00) == 18446612685268621312(0xffff8880bea69800) is false
------------[ cut here ]------------
kernel BUG at net/rxrpc/conn_client.c:824!
...
RIP: 0010:rxrpc_disconnect_client_call+0x2bf/0x99d
...
Call Trace:
rxrpc_connect_call+0x902/0x9b3
? wake_up_q+0x54/0x54
rxrpc_new_client_call+0x3a0/0x751
? rxrpc_kernel_begin_call+0x141/0x1bc
? afs_alloc_call+0x1b5/0x1b5
rxrpc_kernel_begin_call+0x141/0x1bc
afs_make_call+0x20c/0x525
? afs_alloc_call+0x1b5/0x1b5
? __lock_is_held+0x40/0x71
? lockdep_init_map+0xaf/0x193
? lockdep_init_map+0xaf/0x193
? __lock_is_held+0x40/0x71
? yfs_fs_fetch_data+0x33b/0x34a
yfs_fs_fetch_data+0x33b/0x34a
afs_fetch_data+0xdc/0x3b7
afs_read_dir+0x52d/0x97f
afs_dir_iterate+0xa0/0x661
? iterate_dir+0x63/0x141
iterate_dir+0xa2/0x141
ksys_getdents64+0x9f/0x11b
? filldir+0x111/0x111
? do_syscall_64+0x3e/0x1a0
__x64_sys_getdents64+0x16/0x19
do_syscall_64+0x7d/0x1a0
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Fixes: 45025bceef ("rxrpc: Improve management and caching of client connection objects")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
* origin/upstream-f2fs-stable-linux-4.19.y:
f2fs: set pin_file under CAP_SYS_ADMIN
f2fs: fix to avoid deadlock in f2fs_read_inline_dir()
f2fs: fix to adapt small inline xattr space in __find_inline_xattr()
f2fs: fix to do sanity check with inode.i_inline_xattr_size
f2fs: give some messages for inline_xattr_size
f2fs: don't trigger read IO for beyond EOF page
f2fs: fix to add refcount once page is tagged PG_private
f2fs: remove wrong comment in f2fs_invalidate_page()
f2fs: fix to use kvfree instead of kzfree
f2fs: print more parameters in trace_f2fs_map_blocks
f2fs: trace f2fs_ioc_shutdown
f2fs: fix to avoid deadlock of atomic file operations
f2fs: fix to dirty inode for i_mode recovery
f2fs: give random value to i_generation
f2fs: no need to take page lock in readdir
f2fs: fix to update iostat correctly in IPU path
f2fs: fix encrypted page memory leak
f2fs: make fault injection covering __submit_flush_wait()
f2fs: fix to retry fill_super only if recovery failed
f2fs: silence VM_WARN_ON_ONCE in mempool_alloc
f2fs: correct spelling mistake
f2fs: fix wrong #endif
f2fs: don't clear CP_QUOTA_NEED_FSCK_FLAG
f2fs: don't allow negative ->write_io_size_bits
f2fs: fix to check inline_xattr_size boundary correctly
Revert "f2fs: fix to avoid deadlock of atomic file operations"
Revert "f2fs: fix to check inline_xattr_size boundary correctly"
f2fs: do not use mutex lock in atomic context
f2fs: fix potential data inconsistence of checkpoint
f2fs: fix to avoid deadlock of atomic file operations
f2fs: fix to check inline_xattr_size boundary correctly
f2fs: jump to label 'free_node_inode' when failing from d_make_root()
f2fs: fix to document inline_xattr_size option
f2fs: fix to data block override node segment by mistake
f2fs: fix typos in code comments
f2fs: use xattr_prefix to wrap up
f2fs: sync filesystem after roll-forward recovery
f2fs: flush quota blocks after turnning it off
f2fs: avoid null pointer exception in dcc_info
f2fs: don't wake up too frequently, if there is lots of IOs
f2fs: try to keep CP_TRIMMED_FLAG after successful umount
f2fs: add quick mode of checkpoint=disable for QA
f2fs: run discard jobs when put_super
f2fs: fix to set sbi dirty correctly
f2fs: fix to initialize variable to avoid UBSAN/smatch warning
f2fs: UBSAN: set boolean value iostat_enable correctly
f2fs: add brackets for macros
f2fs: check if file namelen exceeds max value
f2fs: fix to trigger fsck if dirent.name_len is zero
f2fs: no need to check return value of debugfs_create functions
f2fs: export FS_NOCOW_FL flag to user
f2fs: check inject_rate validity during configuring
f2fs: remove set but not used variable 'err'
f2fs: fix compile warnings: 'struct *' declared inside parameter list
f2fs: change error code to -ENOMEM from -EINVAL
Change-Id: I4a66e8b8d6a147bae6e210181095784236e982de
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Refaults happen during transitions between workingsets as well as in-place
thrashing. Knowing the difference between the two has a range of
applications, including measuring the impact of memory shortage on the
system performance, as well as the ability to smarter balance pressure
between the filesystem cache and the swap-backed workingset.
During workingset transitions, inactive cache refaults and pushes out
established active cache. When that active cache isn't stale, however,
and also ends up refaulting, that's bonafide thrashing.
Introduce a new page flag that tells on eviction whether the page has been
active or not in its lifetime. This bit is then stored in the shadow
entry, to classify refaults as transitioning or thrashing.
How many page->flags does this leave us with on 32-bit?
20 bits are always page flags
21 if you have an MMU
23 with the zone bits for DMA, Normal, HighMem, Movable
29 with the sparsemem section bits
30 if PAE is enabled
31 with this patch.
So on 32-bit PAE, that leaves 1 bit for distinguishing two NUMA nodes. If
that's not enough, the system can switch to discontigmem and re-gain the 6
or 7 sparsemem section bits.
Link: http://lkml.kernel.org/r/20180828172258.3185-3-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Daniel Drake <drake@endlessm.com>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 8508cf3ffa)
Bug: 127712811
Test: lmkd in PSI mode
Change-Id: I71df060dce5590a3c654f9a0e8e54deeb74b64c2
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
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Merge 4.19.16 into android-4.19
Changes in 4.19.16
Btrfs: fix deadlock when using free space tree due to block group creation
staging: rtl8188eu: Fix module loading from tasklet for CCMP encryption
staging: rtl8188eu: Fix module loading from tasklet for WEP encryption
cpufreq: scmi: Fix frequency invariance in slow path
x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE
ALSA: hda/realtek - Support Dell headset mode for New AIO platform
ALSA: hda/realtek - Add unplug function into unplug state of Headset Mode for ALC225
ALSA: hda/realtek - Disable headset Mic VREF for headset mode of ALC225
CIFS: Fix adjustment of credits for MTU requests
CIFS: Do not set credits to 1 if the server didn't grant anything
CIFS: Do not hide EINTR after sending network packets
CIFS: Fix credit computation for compounded requests
cifs: Fix potential OOB access of lock element array
usb: cdc-acm: send ZLP for Telit 3G Intel based modems
USB: storage: don't insert sane sense for SPC3+ when bad sense specified
USB: storage: add quirk for SMI SM3350
USB: Add USB_QUIRK_DELAY_CTRL_MSG quirk for Corsair K70 RGB
slab: alien caches must not be initialized if the allocation of the alien cache failed
mm/usercopy.c: no check page span for stack objects
mm, memcg: fix reclaim deadlock with writeback
ACPI: power: Skip duplicate power resource references in _PRx
ACPI / PMIC: xpower: Fix TS-pin current-source handling
ACPI/IORT: Fix rc_dma_get_range()
i2c: dev: prevent adapter retries and timeout being set as minus value
mtd: rawnand: qcom: fix memory corruption that causes panic
vfio/type1: Fix unmap overflow off-by-one
drm/amdgpu: Add new VegaM pci id
PCI: dwc: Use interrupt masking instead of disabling
PCI: dwc: Take lock when ACKing an interrupt
PCI: dwc: Move interrupt acking into the proper callback
drm/amd/display: Fix MST dp_blank REG_WAIT timeout
drm/fb_helper: Allow leaking fbdev smem_start
drm/fb-helper: Partially bring back workaround for bugs of SDL 1.2
drm/i915: Unwind failure on pinning the gen7 ppgtt
drm/amdgpu: Don't ignore rc from drm_dp_mst_topology_mgr_resume()
drm/amdgpu: Don't fail resume process if resuming atomic state fails
rbd: don't return 0 on unmap if RBD_DEV_FLAG_REMOVING is set
ext4: make sure enough credits are reserved for dioread_nolock writes
ext4: fix a potential fiemap/page fault deadlock w/ inline_data
ext4: avoid kernel warning when writing the superblock to a dead device
ext4: use ext4_write_inode() when fsyncing w/o a journal
ext4: track writeback errors using the generic tracking infrastructure
ext4: fix special inode number checks in __ext4_iget()
mm: page_mapped: don't assume compound page is huge or THP
sunrpc: use-after-free in svc_process_common()
KVM: arm/arm64: Fix VMID alloc race by reverting to lock-less
arm64: compat: Don't pull syscall number from regs in arm_compat_syscall
Btrfs: fix access to available allocation bits when starting balance
Btrfs: fix deadlock when enabling quotas due to concurrent snapshot creation
Btrfs: use nofs context when initializing security xattrs to avoid deadlock
Linux 4.19.16
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit d4b09acf92 upstream.
if node have NFSv41+ mounts inside several net namespaces
it can lead to use-after-free in svc_process_common()
svc_process_common()
/* Setup reply header */
rqstp->rq_xprt->xpt_ops->xpo_prep_reply_hdr(rqstp); <<< HERE
svc_process_common() can use incorrect rqstp->rq_xprt,
its caller function bc_svc_process() takes it from serv->sv_bc_xprt.
The problem is that serv is global structure but sv_bc_xprt
is assigned per-netnamespace.
According to Trond, the whole "let's set up rqstp->rq_xprt
for the back channel" is nothing but a giant hack in order
to work around the fact that svc_process_common() uses it
to find the xpt_ops, and perform a couple of (meaningless
for the back channel) tests of xpt_flags.
All we really need in svc_process_common() is to be able to run
rqstp->rq_xprt->xpt_ops->xpo_prep_reply_hdr()
Bruce J Fields points that this xpo_prep_reply_hdr() call
is an awfully roundabout way just to do "svc_putnl(resv, 0);"
in the tcp case.
This patch does not initialiuze rqstp->rq_xprt in bc_svc_process(),
now it calls svc_process_common() with rqstp->rq_xprt = NULL.
To adjust reply header svc_process_common() just check
rqstp->rq_prot and calls svc_tcp_prep_reply_hdr() for tcp case.
To handle rqstp->rq_xprt = NULL case in functions called from
svc_process_common() patch intruduces net namespace pointer
svc_rqst->rq_bc_net and adjust SVC_NET() definition.
Some other function was also adopted to properly handle described case.
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Cc: stable@vger.kernel.org
Fixes: 23c20ecd44 ("NFS: callback up - users counting cleanup")
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
v2: added lost extern svc_tcp_prep_reply_hdr()
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.19.14 into android-4.19
Changes in 4.19.14
ax25: fix a use-after-free in ax25_fillin_cb()
gro_cell: add napi_disable in gro_cells_destroy
ibmveth: fix DMA unmap error in ibmveth_xmit_start error path
ieee802154: lowpan_header_create check must check daddr
ip6mr: Fix potential Spectre v1 vulnerability
ipv4: Fix potential Spectre v1 vulnerability
ipv6: explicitly initialize udp6_addr in udp_sock_create6()
ipv6: tunnels: fix two use-after-free
ip: validate header length on virtual device xmit
isdn: fix kernel-infoleak in capi_unlocked_ioctl
net: clear skb->tstamp in forwarding paths
net/hamradio/6pack: use mod_timer() to rearm timers
net: ipv4: do not handle duplicate fragments as overlapping
net: macb: restart tx after tx used bit read
net: mvpp2: 10G modes aren't supported on all ports
net: phy: Fix the issue that netif always links up after resuming
netrom: fix locking in nr_find_socket()
net/smc: fix TCP fallback socket release
net: stmmac: Fix an error code in probe()
net/tls: allocate tls context using GFP_ATOMIC
net/wan: fix a double free in x25_asy_open_tty()
packet: validate address length
packet: validate address length if non-zero
ptr_ring: wrap back ->producer in __ptr_ring_swap_queue()
qmi_wwan: Added support for Fibocom NL668 series
qmi_wwan: Added support for Telit LN940 series
qmi_wwan: Add support for Fibocom NL678 series
sctp: initialize sin6_flowinfo for ipv6 addrs in sctp_inet6addr_event
sock: Make sock->sk_stamp thread-safe
tcp: fix a race in inet_diag_dump_icsk()
tipc: check tsk->group in tipc_wait_for_cond()
tipc: compare remote and local protocols in tipc_udp_enable()
tipc: fix a double free in tipc_enable_bearer()
tipc: fix a double kfree_skb()
tipc: use lock_sock() in tipc_sk_reinit()
vhost: make sure used idx is seen before log in vhost_add_used_n()
VSOCK: Send reset control packet when socket is partially bound
xen/netfront: tolerate frags with no data
net/mlx5: Typo fix in del_sw_hw_rule
tipc: check group dests after tipc_wait_for_cond()
net/mlx5e: Remove the false indication of software timestamping support
ipv6: frags: Fix bogus skb->sk in reassembled packets
net/ipv6: Fix a test against 'ipv6_find_idev()' return value
nfp: flower: ensure TCP flags can be placed in IPv6 frame
ipv6: route: Fix return value of ip6_neigh_lookup() on neigh_create() error
mscc: Configured MAC entries should be locked.
net/mlx5e: Cancel DIM work on close SQ
net/mlx5e: RX, Verify MPWQE stride size is in range
net: mvpp2: fix the phylink mode validation
qed: Fix command number mismatch between driver and the mfw
mlxsw: core: Increase timeout during firmware flash process
net/mlx5e: Remove unused UDP GSO remaining counter
net/mlx5e: RX, Fix wrong early return in receive queue poll
net: mvneta: fix operation for 64K PAGE_SIZE
net: Use __kernel_clockid_t in uapi net_stamp.h
r8169: fix WoL device wakeup enable
IB/hfi1: Incorrect sizing of sge for PIO will OOPs
ALSA: rme9652: Fix potential Spectre v1 vulnerability
ALSA: emu10k1: Fix potential Spectre v1 vulnerabilities
ALSA: pcm: Fix potential Spectre v1 vulnerability
ALSA: emux: Fix potential Spectre v1 vulnerabilities
powerpc/fsl: Fix spectre_v2 mitigations reporting
mtd: atmel-quadspi: disallow building on ebsa110
mtd: rawnand: marvell: prevent timeouts on a loaded machine
mtd: rawnand: omap2: Pass the parent of pdev to dma_request_chan()
ALSA: hda: add mute LED support for HP EliteBook 840 G4
ALSA: hda/realtek: Enable audio jacks of ASUS UX391UA with ALC294
ALSA: fireface: fix for state to fetch PCM frames
ALSA: firewire-lib: fix wrong handling payload_length as payload_quadlet
ALSA: firewire-lib: fix wrong assignment for 'out_packet_without_header' tracepoint
ALSA: firewire-lib: use the same print format for 'without_header' tracepoints
ALSA: hda/realtek: Enable the headset mic auto detection for ASUS laptops
ALSA: hda/tegra: clear pending irq handlers
usb: dwc2: host: use hrtimer for NAK retries
USB: serial: pl2303: add ids for Hewlett-Packard HP POS pole displays
USB: serial: option: add Fibocom NL678 series
usb: r8a66597: Fix a possible concurrency use-after-free bug in r8a66597_endpoint_disable()
usb: dwc2: disable power_down on Amlogic devices
Revert "usb: dwc3: pci: Use devm functions to get the phy GPIOs"
usb: roles: Add a description for the class to Kconfig
media: dvb-usb-v2: Fix incorrect use of transfer_flags URB_FREE_BUFFER
staging: wilc1000: fix missing read_write setting when reading data
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Clapper
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Gnawty
s390/pci: fix sleeping in atomic during hotplug
Input: atmel_mxt_ts - don't try to free unallocated kernel memory
Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G
x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off
x86/mm: Drop usage of __flush_tlb_all() in kernel_physical_mapping_init()
KVM: x86: Use jmp to invoke kvm_spurious_fault() from .fixup
arm64: KVM: Make VHE Stage-2 TLB invalidation operations non-interruptible
KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if alloc_kvm_area() fails
platform-msi: Free descriptors in platform_msi_domain_free()
drm/v3d: Skip debugfs dumping GCA on platforms without GCA.
DRM: UDL: get rid of useless vblank initialization
clocksource/drivers/arc_timer: Utilize generic sched_clock
perf machine: Record if a arch has a single user/kernel address space
perf thread: Add fallback functions for cases where cpumode is insufficient
perf tools: Use fallback for sample_addr_correlates_sym() cases
perf script: Use fallbacks for branch stacks
perf pmu: Suppress potential format-truncation warning
perf env: Also consider env->arch == NULL as local operation
ocxl: Fix endiannes bug in ocxl_link_update_pe()
ocxl: Fix endiannes bug in read_afu_name()
ext4: add ext4_sb_bread() to disambiguate ENOMEM cases
ext4: fix possible use after free in ext4_quota_enable
ext4: missing unlock/put_page() in ext4_try_to_write_inline_data()
ext4: fix EXT4_IOC_GROUP_ADD ioctl
ext4: include terminating u32 in size of xattr entries when expanding inodes
ext4: avoid declaring fs inconsistent due to invalid file handles
ext4: force inode writes when nfsd calls commit_metadata()
ext4: check for shutdown and r/o file system in ext4_write_inode()
spi: bcm2835: Fix race on DMA termination
spi: bcm2835: Fix book-keeping of DMA termination
spi: bcm2835: Avoid finishing transfer prematurely in IRQ mode
clk: rockchip: fix typo in rk3188 spdif_frac parent
clk: sunxi-ng: Use u64 for calculation of NM rate
crypto: cavium/nitrox - fix a DMA pool free failure
crypto: chcr - small packet Tx stalls the queue
crypto: testmgr - add AES-CFB tests
crypto: cfb - fix decryption
cgroup: fix CSS_TASK_ITER_PROCS
cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
btrfs: dev-replace: go back to suspended state if target device is missing
btrfs: dev-replace: go back to suspend state if another EXCL_OP is running
btrfs: skip file_extent generation check for free_space_inode in run_delalloc_nocow
Btrfs: fix fsync of files with multiple hard links in new directories
btrfs: run delayed items before dropping the snapshot
Btrfs: send, fix race with transaction commits that create snapshots
brcmfmac: fix roamoff=1 modparam
brcmfmac: Fix out of bounds memory access during fw load
powerpc/tm: Unset MSR[TS] if not recheckpointing
dax: Don't access a freed inode
dax: Use non-exclusive wait in wait_entry_unlocked()
f2fs: read page index before freeing
f2fs: fix validation of the block count in sanity_check_raw_super
f2fs: sanity check of xattr entry size
serial: uartps: Fix interrupt mask issue to handle the RX interrupts properly
media: cec: keep track of outstanding transmits
media: cec-pin: fix broken tx_ignore_nack_until_eom error injection
media: rc: cec devices do not have a lirc chardev
media: imx274: fix stack corruption in imx274_read_reg
media: vivid: free bitmap_cap when updating std/timings/etc.
media: vb2: check memory model for VIDIOC_CREATE_BUFS
media: v4l2-tpg: array index could become negative
tools lib traceevent: Fix processing of dereferenced args in bprintk events
MIPS: math-emu: Write-protect delay slot emulation pages
MIPS: c-r4k: Add r4k_blast_scache_node for Loongson-3
MIPS: Ensure pmd_present() returns false after pmd_mknotpresent()
MIPS: Align kernel load address to 64KB
MIPS: Expand MIPS32 ASIDs to 64 bits
MIPS: OCTEON: mark RGMII interface disabled on OCTEON III
MIPS: Fix a R10000_LLSC_WAR logic in atomic.h
CIFS: Fix error mapping for SMB2_LOCK command which caused OFD lock problem
smb3: fix large reads on encrypted connections
arm64: KVM: Avoid setting the upper 32 bits of VTCR_EL2 to 1
arm/arm64: KVM: vgic: Force VM halt when changing the active state of GICv3 PPIs/SGIs
ARM: dts: exynos: Specify I2S assigned clocks in proper node
rtc: m41t80: Correct alarm month range with RTC reads
KVM: arm/arm64: vgic: Do not cond_resched_lock() with IRQs disabled
KVM: arm/arm64: vgic: Cap SPIs to the VM-defined maximum
KVM: arm/arm64: vgic-v2: Set active_source to 0 when restoring state
KVM: arm/arm64: vgic: Fix off-by-one bug in vgic_get_irq()
iommu/arm-smmu-v3: Fix big-endian CMD_SYNC writes
arm64: compat: Avoid sending SIGILL for unallocated syscall numbers
tpm: tpm_try_transmit() refactor error flow.
tpm: tpm_i2c_nuvoton: use correct command duration for TPM 2.x
spi: bcm2835: Unbreak the build of esoteric configs
MIPS: Only include mmzone.h when CONFIG_NEED_MULTIPLE_NODES=y
Linux 4.19.14
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit fde872682e upstream.
Some time back, nfsd switched from calling vfs_fsync() to using a new
commit_metadata() hook in export_operations(). If the file system did
not provide a commit_metadata() hook, it fell back to using
sync_inode_metadata(). Unfortunately doesn't work on all file
systems. In particular, it doesn't work on ext4 due to how the inode
gets journalled --- the VFS writeback code will not always call
ext4_write_inode().
So we need to provide our own ext4_nfs_commit_metdata() method which
calls ext4_write_inode() directly.
Google-Bug-Id: 121195940
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
GCC 8 provides the following warning:
./include/trace/events/sched.h:736:3: warning: ‘memcpy’ forming offset
[8, 16] is out of the bounds [0, 7] [-Warray-bounds]
memcpy(__entry->comm, p ? p->comm : "(null)", TASK_COMM_LEN);
Indeed, in the case where p==NULL, we copy TASK_COMM_LEN bytes from the
memory location where "(null)" is stored, which is incorrect.
Fix this by making sure to pass the right size parameter to memcpy in
all cases.
Bug: 120440300
Test: Compilation warning gone, no changes noticed in traces
Fixes: 4290369491 ("ANDROID: sched/events: Introduce sched_entity load
tracking trace event")
Change-Id: Id93c9c0265f10c09b731daca25401696785b4b1e
Suggested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
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Merge 4.19.8 into android-4.19
Changes in 4.19.8
blk-mq: fix corruption with direct issue
test_hexdump: use memcpy instead of strncpy
unifdef: use memcpy instead of strncpy
iser: set sector for ambiguous mr status errors
uprobes: Fix handle_swbp() vs. unregister() + register() race once more
mtd: nand: Fix memory allocation in nanddev_bbt_init()
arm64: ftrace: Fix to enable syscall events on arm64
sched, trace: Fix prev_state output in sched_switch tracepoint
tracepoint: Use __idx instead of idx in DO_TRACE macro to make it unique
MIPS: ralink: Fix mt7620 nd_sd pinmux
mips: fix mips_get_syscall_arg o32 check
IB/mlx5: Avoid load failure due to unknown link width
tracing/fgraph: Fix set_graph_function from showing interrupts
drm/ast: Fix incorrect free on ioregs
drm/amd/dm: Don't forget to attach MST encoders
drm: set is_master to 0 upon drm_new_set_master() failure
drm/meson: Fixes for drm_crtc_vblank_on/off support
drm/meson: Enable fast_io in meson_dw_hdmi_regmap_config
drm/meson: Fix OOB memory accesses in meson_viu_set_osd_lut()
userfaultfd: use ENOENT instead of EFAULT if the atomic copy user fails
userfaultfd: shmem: allocate anonymous memory for MAP_PRIVATE shmem
userfaultfd: shmem: add i_size checks
userfaultfd: shmem: UFFDIO_COPY: set the page dirty if VM_WRITE is not set
kgdboc: Fix restrict error
kgdboc: Fix warning with module build
svm: Add mutex_lock to protect apic_access_page_done on AMD systems
selinux: add support for RTM_NEWCHAIN, RTM_DELCHAIN, and RTM_GETCHAIN
i40e: Fix deletion of MAC filters
scsi: lpfc: fix block guard enablement on SLI3 adapters
Input: xpad - quirk all PDP Xbox One gamepads
Input: synaptics - add PNP ID for ThinkPad P50 to SMBus
Input: matrix_keypad - check for errors from of_get_named_gpio()
Input: cros_ec_keyb - fix button/switch capability reports
Input: elan_i2c - add ELAN0620 to the ACPI table
Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR
Input: elan_i2c - add support for ELAN0621 touchpad
btrfs: tree-checker: Don't check max block group size as current max chunk size limit is unreliable
ARC: change defconfig defaults to ARCv2
arc: [devboards] Add support of NFSv3 ACL
tipc: use destination length for copy string
blk-mq: punt failed direct issue to dispatch list
Linux 4.19.8
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 3054426dc6 upstream.
commit 3f5fe9fef5 ("sched/debug: Fix task state recording/printout")
tried to fix the problem introduced by a previous commit efb40f588b
("sched/tracing: Fix trace_sched_switch task-state printing"). However
the prev_state output in sched_switch is still broken.
task_state_index() uses fls() which considers the LSB as 1. Left
shifting 1 by this value gives an incorrect mapping to the task state.
Fix this by decrementing the value returned by __get_task_state()
before shifting.
Link: http://lkml.kernel.org/r/1540882473-1103-1-git-send-email-pkondeti@codeaurora.org
Cc: stable@vger.kernel.org
Fixes: 3f5fe9fef5 ("sched/debug: Fix task state recording/printout")
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Decare war on uninterruptible sleep. Add a tracepoint which
walks the kernel stack and dumps the first non-scheduler function
called before the scheduler is invoked.
Bug: 120445457
Change-Id: I19e965d5206329360a92cbfe2afcc8c30f65c229
Signed-off-by: Riley Andrews <riandrews@google.com>
[astrachan: deleted an unnecessary whitespace change]
Signed-off-by: Alistair Strachan <astrachan@google.com>
Adds tracepoints in ext4/f2fs/mpage to track readpages/buffered
write()s. This allows us to track files that are being read/written
to PIDs.
Bug: 120445624
Change-Id: I44476230324e9397e292328463f846af4befbd6d
[joelaf: Needed for storaged fsync accounting ("storaged --uid" and
"storaged --task".)]
Signed-off-by: Mohan Srinivasan <srmohan@google.com>
[AmitP: Folded following android-4.9 commit changes into this patch
a5c4dbb05ab7 ("ANDROID: Replace spaces by '_' for some
android filesystem tracepoints.")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
[astrachan: Folded 63066f4acf92 ("ANDROID: fs: Refactor FS
readpage/write tracepoints.") into this patch
Signed-off-by: Alistair Strachan <astrachan@google.com>
When tasks come and go from a runqueue quickly, this can lead to boost
being applied and removed quickly which sometimes means we cannot raise
the CPU frequency again when we need to (due to the rate limit on
frequency updates). This has proved to be a particular issue for RT tasks
and alternative methods have been used in the past to work around it.
This is an attempt to solve the issue for all task classes and cpufreq
governors by introducing a generic mechanism in schedtune to retain
the max boost level from task enqueue for a minimum period - defined
here as 50ms. This timeout was determined experimentally and is not
configurable.
A sched_feat guards the application of this to tasks - in the default
configuration, task boosting only applied to tasks which have RT
policy. Change SCHEDTUNE_BOOST_HOLD_ALL to true to apply it to all
tasks regardless of class.
It works like so:
Every task enqueue (in an allowed class) stores a cpu-local timestamp.
If the task is not a member of an allowed class (all or RT depending
upon feature selection), the timestamp is not updated.
The boost group will stay active regardless of tasks present until
50ms beyond the last timestamp stored. We also store the timestamp
of the active boost group to avoid unneccesarily revisiting the boost
groups when checking CPU boost level.
If the timestamp is more than 50ms in the past when we check boost then
we re-evaluate the boost groups for that CPU, taking into account the
timestamps associated with each group.
Idea based on rt-boost-retention patches from Joel.
Change-Id: I52cc2d2e82d1c5aa03550378c8836764f41630c1
Suggested-by: Joel Fernandes <joelaf@google.com>
Reviewed-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
[forward ported from android-4.9-eas-dev proposal]
(cherry picked from commit a485e8b7bf8e95759e600396feeb7bfb400b6e46)
[ - Trivial cherry-pick conflicts in include/trace/events/sched.h ]
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
We want to be able to track rt_rq signals same as we do for other RQs.
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
(cherry-picked from commit 574a2d189695c334ae290f522b098f05398a3765)
[ - Fixed conflicts with the refactored RT util_avg tracking
- Changed commit title for consistency with other tracepoint patches ]
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
Change-Id: I38b64baa50e1ff86019ca4b8b0a04af994880b35
Adapated from the existing trace event from android-4.14.
Change-Id: I9785e692fb0af087c236906d7f47fed1b20690f5
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
The trace event key load is mapped to:
(1) load : cfs_rq->tg->load_avg
The cfs_rq owned by the task_group is used as the only parameter for the
trace event because it has a reference to the taskgroup and the cpu.
Using the taskgroup as a parameter instead would require the cpu as a
second parameter. A task_group is global and not per-cpu data. The cpu
key only tells on which cpu the value was gathered.
The following list shows examples of the key=value pairs for:
(1) a task group:
cpu=1 path=/tg1/tg11/tg111 load=517
(2) an autogroup:
cpu=1 path=/autogroup-10 load=1050
We don't maintain a load signal for a root task group.
The trace event is only defined if cfs group scheduling support
(CONFIG_FAIR_GROUP_SCHED) is enabled.
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Change-Id: I7de38e6b30a99d7c9887c94c707ded26b383b5f8
The following trace event keys are mapped to:
(1) load : se->avg.load_avg
(2) rbl_load : se->avg.runnable_load_avg
(3) util : se->avg.util_avg
To let this trace event work for configurations w/ and w/o group
scheduling support for cfs (CONFIG_FAIR_GROUP_SCHED) the following
special handling is necessary for non-existent key=value pairs:
path = "(null)" : In case of !CONFIG_FAIR_GROUP_SCHED or the
sched_entity represents a task.
comm = "(null)" : In case sched_entity represents a task_group.
pid = -1 : In case sched_entity represents a task_group.
The following list shows examples of the key=value pairs in different
configurations for:
(1) a task:
cpu=0 path=(null) comm=sshd pid=2206 load=102 rbl_load=102 util=102
(2) a taskgroup:
cpu=1 path=/tg1/tg11/tg111 comm=(null) pid=-1 load=882 rbl_load=882 util=510
(3) an autogroup:
cpu=0 path=/autogroup-13 comm=(null) pid=-1 load=49 rbl_load=49 util=48
(4) w/o CONFIG_FAIR_GROUP_SCHED:
cpu=0 path=(null) comm=sshd pid=2211 load=301 rbl_load=301 util=265
The trace event is only defined for CONFIG_SMP.
The helper functions __trace_sched_cpu(), __trace_sched_path() and
__trace_sched_id() are extended to deal with sched_entities as well.
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
[ Fixed issues related to the new pelt.c file ]
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
Change-Id: Id2e4d1ddb79c13412c80e4fa4147b9df3b1e212a
The following trace event keys are mapped to:
(1) load : cfs_rq->avg.load_avg
(2) rbl_load : cfs_rq->avg.runnable_load_avg
(2) util : cfs_rq->avg.util_avg
To let this trace event work for configurations w/ and w/o group
scheduling support for cfs (CONFIG_FAIR_GROUP_SCHED) the following
special handling is necessary for a non-existent key=value pair:
path = "(null)" : In case of !CONFIG_FAIR_GROUP_SCHED.
The following list shows examples of the key=value pairs in different
configurations for:
(1) a root task_group:
cpu=4 path=/ load=6 rbl_load=6 util=331
(2) a task_group:
cpu=1 path=/tg1/tg11/tg111 load=538 rbl_load=538 util=522
(3) an autogroup:
cpu=3 path=/autogroup-18 load=997 rbl_load=997 util=517
(4) w/o CONFIG_FAIR_GROUP_SCHED:
cpu=0 path=(null) load=314 rbl_load=314 util=289
The trace event is only defined for CONFIG_SMP.
The helper function __trace_sched_path() can be used to get the length
parameter of the dynamic array (path == NULL) and to copy the path into
it (path != NULL).
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
[ Fixed issues related to the new pelt.c file ]
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
Change-Id: I1107044c52b74ecb3df69f3a45c1e530f0e59b1b
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Merge tag 'rxrpc-fixes-20181008' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: Fix packet reception code
Here are a set of patches that prepares for and fix problems in rxrpc's
package reception code. There serious problems are:
(A) There's a window between binding the socket and setting the data_ready
hook in which packets can find their way into the UDP socket's receive
queues.
(B) The skb_recv_udp() will return an error (and clear the error state) if
there was an error on the Tx side. rxrpc doesn't handle this.
(C) The rxrpc data_ready handler doesn't fully drain the UDP receive
queue.
(D) The rxrpc data_ready handler assumes it is called in a non-reentrant
state.
The second patch fixes (A) - (C); the third patch renders (B) and (C)
non-issues by using the recap_rcv hook instead of data_ready - and the
final patch fixes (D). That last is the most complex.
The preparatory patches are:
(1) Fix some places that are doing things in the wrong net namespace.
(2) Stop taking the rcu read lock as it's held by the IP input routine in
the call chain.
(3) Only end the Tx phase if *we* rotated the final packet out of the Tx
buffer.
(4) Don't assume that the call state won't change after dropping the
call_state lock.
(5) Only take receive window and MTU suze parameters from an ACK packet if
it's the latest ACK packet.
(6) Record connection-level abort information correctly.
(7) Fix a trace line.
And then there are three main patches - note that these are mixed in with
the preparatory patches somewhat:
(1) Fix the setup window (A), skb_recv_udp() error check (B) and packet
drainage (C).
(2) Switch to using the encap_rcv instead of data_ready to cut out the
effects of the UDP read queues and get the packets delivered directly.
(3) Add more locking into the various packet input paths to defend against
re-entrance (D).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the rxrpc_tx_packet trace line by storing the where parameter.
Fixes: 4764c0da69 ("rxrpc: Trace packet transmission")
Signed-off-by: David Howells <dhowells@redhat.com>
Ingo writes:
"scheduler fixes:
These fixes address a rather involved performance regression between
v4.17->v4.19 in the sched/numa auto-balancing code. Since distros
really need this fix we accelerated it to sched/urgent for a faster
upstream merge.
NUMA scheduling and balancing performance is now largely back to
v4.17 levels, without reintroducing the NUMA placement bugs that
v4.18 and v4.19 fixed.
Many thanks to Srikar Dronamraju, Mel Gorman and Jirka Hladky, for
reporting, testing, re-testing and solving this rather complex set of
bugs."
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/numa: Migrate pages to local nodes quicker early in the lifetime of a task
mm, sched/numa: Remove rate-limiting of automatic NUMA balancing migration
sched/numa: Avoid task migration for small NUMA improvement
mm/migrate: Use spin_trylock() while resetting rate limit
sched/numa: Limit the conditions where scan period is reset
sched/numa: Reset scan rate whenever task moves across nodes
sched/numa: Pass destination CPU as a parameter to migrate_task_rq
sched/numa: Stop multiple tasks from moving to the CPU at the same time
Rate limiting of page migrations due to automatic NUMA balancing was
introduced to mitigate the worst-case scenario of migrating at high
frequency due to false sharing or slowly ping-ponging between nodes.
Since then, a lot of effort was spent on correctly identifying these
pages and avoiding unnecessary migrations and the safety net may no longer
be required.
Jirka Hladky reported a regression in 4.17 due to a scheduler patch that
avoids spreading STREAM tasks wide prematurely. However, once the task
was properly placed, it delayed migrating the memory due to rate limiting.
Increasing the limit fixed the problem for him.
Currently, the limit is hard-coded and does not account for the real
capabilities of the hardware. Even if an estimate was attempted, it would
not properly account for the number of memory controllers and it could
not account for the amount of bandwidth used for normal accesses. Rather
than fudging, this patch simply eliminates the rate limiting.
However, Jirka reports that a STREAM configuration using multiple
processes achieved similar performance to 4.16. In local tests, this patch
improved performance of STREAM relative to the baseline but it is somewhat
machine-dependent. Most workloads show little or not performance difference
implying that there is not a heavily reliance on the throttling mechanism
and it is safe to remove.
STREAM on 2-socket machine
4.19.0-rc5 4.19.0-rc5
numab-v1r1 noratelimit-v1r1
MB/sec copy 43298.52 ( 0.00%) 44673.38 ( 3.18%)
MB/sec scale 30115.06 ( 0.00%) 31293.06 ( 3.91%)
MB/sec add 32825.12 ( 0.00%) 34883.62 ( 6.27%)
MB/sec triad 32549.52 ( 0.00%) 34906.60 ( 7.24%
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Reviewed-by: Rik van Riel <riel@surriel.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Jirka Hladky <jhladky@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linux-MM <linux-mm@kvack.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20181001100525.29789-2-mgorman@techsingularity.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Fix error distribution by immediately delivering the errors to all the
affected calls rather than deferring them to a worker thread. The problem
with the latter is that retries and things can happen in the meantime when we
want to stop that sooner.
To this end:
(1) Stop the error distributor from removing calls from the error_targets
list so that peer->lock isn't needed to synchronise against other adds
and removals.
(2) Require the peer's error_targets list to be accessed with RCU, thereby
avoiding the need to take peer->lock over distribution.
(3) Don't attempt to affect a call's state if it is already marked complete.
Signed-off-by: David Howells <dhowells@redhat.com>
Pull cgroup updates from Tejun Heo:
"Just one commit from Steven to take out spin lock from trace event
handlers"
* 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup/tracing: Move taking of spin lock out of trace event handlers
- Restructure of lockdep and latency tracers
This is the biggest change. Joel Fernandes restructured the hooks
from irqs and preemption disabling and enabling. He got rid of
a lot of the preprocessor #ifdef mess that they caused.
He turned both lockdep and the latency tracers to use trace events
inserted in the preempt/irqs disabling paths. But unfortunately,
these started to cause issues in corner cases. Thus, parts of the
code was reverted back to where lockde and the latency tracers
just get called directly (without using the trace events).
But because the original change cleaned up the code very nicely
we kept that, as well as the trace events for preempt and irqs
disabling, but they are limited to not being called in NMIs.
- Have trace events use SRCU for "rcu idle" calls. This was required
for the preempt/irqs off trace events. But it also had to not
allow them to be called in NMI context. Waiting till Paul makes
an NMI safe SRCU API.
- New notrace SRCU API to allow trace events to use SRCU.
- Addition of mcount-nop option support
- SPDX headers replacing GPL templates.
- Various other fixes and clean ups.
- Some fixes are marked for stable, but were not fully tested
before the merge window opened.
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Merge tag 'trace-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
- Restructure of lockdep and latency tracers
This is the biggest change. Joel Fernandes restructured the hooks
from irqs and preemption disabling and enabling. He got rid of a lot
of the preprocessor #ifdef mess that they caused.
He turned both lockdep and the latency tracers to use trace events
inserted in the preempt/irqs disabling paths. But unfortunately,
these started to cause issues in corner cases. Thus, parts of the
code was reverted back to where lockdep and the latency tracers just
get called directly (without using the trace events). But because the
original change cleaned up the code very nicely we kept that, as well
as the trace events for preempt and irqs disabling, but they are
limited to not being called in NMIs.
- Have trace events use SRCU for "rcu idle" calls. This was required
for the preempt/irqs off trace events. But it also had to not allow
them to be called in NMI context. Waiting till Paul makes an NMI safe
SRCU API.
- New notrace SRCU API to allow trace events to use SRCU.
- Addition of mcount-nop option support
- SPDX headers replacing GPL templates.
- Various other fixes and clean ups.
- Some fixes are marked for stable, but were not fully tested before
the merge window opened.
* tag 'trace-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (44 commits)
tracing: Fix SPDX format headers to use C++ style comments
tracing: Add SPDX License format tags to tracing files
tracing: Add SPDX License format to bpf_trace.c
blktrace: Add SPDX License format header
s390/ftrace: Add -mfentry and -mnop-mcount support
tracing: Add -mcount-nop option support
tracing: Avoid calling cc-option -mrecord-mcount for every Makefile
tracing: Handle CC_FLAGS_FTRACE more accurately
Uprobe: Additional argument arch_uprobe to uprobe_write_opcode()
Uprobes: Simplify uprobe_register() body
tracepoints: Free early tracepoints after RCU is initialized
uprobes: Use synchronize_rcu() not synchronize_sched()
tracing: Fix synchronizing to event changes with tracepoint_synchronize_unregister()
ftrace: Remove unused pointer ftrace_swapper_pid
tracing: More reverting of "tracing: Centralize preemptirq tracepoints and unify their usage"
tracing/irqsoff: Handle preempt_count for different configs
tracing: Partial revert of "tracing: Centralize preemptirq tracepoints and unify their usage"
tracing: irqsoff: Account for additional preempt_disable
trace: Use rcu_dereference_raw for hooks from trace-event subsystem
tracing/kprobes: Fix within_notrace_func() to check only notrace functions
...
Pull networking fixes from David Miller:
1) Fix races in IPVS, from Tan Hu.
2) Missing unbind in matchall classifier, from Hangbin Liu.
3) Missing act_ife action release, from Vlad Buslov.
4) Cure lockdep splats in ila, from Cong Wang.
5) veth queue leak on link delete, from Toshiaki Makita.
6) Disable isdn's IIOCDBGVAR ioctl, it exposes kernel addresses. From
Kees Cook.
7) RCU usage fixup in XDP, from Tariq Toukan.
8) Two TCP ULP fixes from Daniel Borkmann.
9) r8169 needs REALTEK_PHY as a Kconfig dependency, from Heiner
Kallweit.
10) Always take tcf_lock with BH disabled, otherwise we can deadlock
with rate estimator code paths. From Vlad Buslov.
11) Don't use MSI-X on RTL8106e r8169 chips, they don't resume properly.
From Jian-Hong Pan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
ip6_vti: fix creating fallback tunnel device for vti6
ip_vti: fix a null pointer deferrence when create vti fallback tunnel
r8169: don't use MSI-X on RTL8106e
net: lan743x_ptp: convert to ktime_get_clocktai_ts64
net: sched: always disable bh when taking tcf_lock
ip6_vti: simplify stats handling in vti6_xmit
bpf: fix redirect to map under tail calls
r8169: add missing Kconfig dependency
tools/bpf: fix bpf selftest test_cgroup_storage failure
bpf, sockmap: fix sock_map_ctx_update_elem race with exist/noexist
bpf, sockmap: fix map elem deletion race with smap_stop_sock
bpf, sockmap: fix leakage of smap_psock_map_entry
tcp, ulp: fix leftover icsk_ulp_ops preventing sock from reattach
tcp, ulp: add alias for all ulp modules
bpf: fix a rcu usage warning in bpf_prog_array_copy_core()
samples/bpf: all XDP samples should unload xdp/bpf prog on SIGTERM
net/xdp: Fix suspicious RCU usage warning
net/mlx5e: Delete unneeded function argument
Documentation: networking: ti-cpsw: correct cbs parameters for Eth1 100Mb
isdn: Disable IIOCDBGVAR
...
Here is the bit set of char/misc drivers for 4.19-rc1
There is a lot here, much more than normal, seems like everyone is
writing new driver subsystems these days... Anyway, major things here
are:
- new FSI driver subsystem, yet-another-powerpc low-level
hardware bus
- gnss, finally an in-kernel GPS subsystem to try to tame all of
the crazy out-of-tree drivers that have been floating around
for years, combined with some really hacky userspace
implementations. This is only for GNSS receivers, but you
have to start somewhere, and this is great to see.
Other than that, there are new slimbus drivers, new coresight drivers,
new fpga drivers, and loads of DT bindings for all of these and existing
drivers.
Full details of everything is in the shortlog.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the bit set of char/misc drivers for 4.19-rc1
There is a lot here, much more than normal, seems like everyone is
writing new driver subsystems these days... Anyway, major things here
are:
- new FSI driver subsystem, yet-another-powerpc low-level hardware
bus
- gnss, finally an in-kernel GPS subsystem to try to tame all of the
crazy out-of-tree drivers that have been floating around for years,
combined with some really hacky userspace implementations. This is
only for GNSS receivers, but you have to start somewhere, and this
is great to see.
Other than that, there are new slimbus drivers, new coresight drivers,
new fpga drivers, and loads of DT bindings for all of these and
existing drivers.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
android: binder: Rate-limit debug and userspace triggered err msgs
fsi: sbefifo: Bump max command length
fsi: scom: Fix NULL dereference
misc: mic: SCIF Fix scif_get_new_port() error handling
misc: cxl: changed asterisk position
genwqe: card_base: Use true and false for boolean values
misc: eeprom: assignment outside the if statement
uio: potential double frees if __uio_register_device() fails
eeprom: idt_89hpesx: clean up an error pointer vs NULL inconsistency
misc: ti-st: Fix memory leak in the error path of probe()
android: binder: Show extra_buffers_size in trace
firmware: vpd: Fix section enabled flag on vpd_section_destroy
platform: goldfish: Retire pdev_bus
goldfish: Use dedicated macros instead of manual bit shifting
goldfish: Add missing includes to goldfish.h
mux: adgs1408: new driver for Analog Devices ADGS1408/1409 mux
dt-bindings: mux: add adi,adgs1408
Drivers: hv: vmbus: Cleanup synic memory free path
Drivers: hv: vmbus: Remove use of slow_virt_to_phys()
Drivers: hv: vmbus: Reset the channel callback in vmbus_onoffer_rescind()
...
Commits 109980b894 ("bpf: don't select potentially stale ri->map
from buggy xdp progs") and 7c30013133 ("bpf: fix ri->map_owner
pointer on bpf_prog_realloc") tried to mitigate that buggy programs
using bpf_redirect_map() helper call do not leave stale maps behind.
Idea was to add a map_owner cookie into the per CPU struct redirect_info
which was set to prog->aux by the prog making the helper call as a
proof that the map is not stale since the prog is implicitly holding
a reference to it. This owner cookie could later on get compared with
the program calling into BPF whether they match and therefore the
redirect could proceed with processing the map safely.
In (obvious) hindsight, this approach breaks down when tail calls are
involved since the original caller's prog->aux pointer does not have
to match the one from one of the progs out of the tail call chain,
and therefore the xdp buffer will be dropped instead of redirected.
A way around that would be to fix the issue differently (which also
allows to remove related work in fast path at the same time): once
the life-time of a redirect map has come to its end we use it's map
free callback where we need to wait on synchronize_rcu() for current
outstanding xdp buffers and remove such a map pointer from the
redirect info if found to be present. At that time no program is
using this map anymore so we simply invalidate the map pointers to
NULL iff they previously pointed to that instance while making sure
that the redirect path only reads out the map once.
Fixes: 97f91a7cf0 ("bpf: add bpf_redirect_map helper routine")
Fixes: 109980b894 ("bpf: don't select potentially stale ri->map from buggy xdp progs")
Reported-by: Sebastiano Miano <sebastiano.miano@polito.it>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Pull networking updates from David Miller:
"Highlights:
- Gustavo A. R. Silva keeps working on the implicit switch fallthru
changes.
- Support 802.11ax High-Efficiency wireless in cfg80211 et al, From
Luca Coelho.
- Re-enable ASPM in r8169, from Kai-Heng Feng.
- Add virtual XFRM interfaces, which avoids all of the limitations of
existing IPSEC tunnels. From Steffen Klassert.
- Convert GRO over to use a hash table, so that when we have many
flows active we don't traverse a long list during accumluation.
- Many new self tests for routing, TC, tunnels, etc. Too many
contributors to mention them all, but I'm really happy to keep
seeing this stuff.
- Hardware timestamping support for dpaa_eth/fsl-fman from Yangbo Lu.
- Lots of cleanups and fixes in L2TP code from Guillaume Nault.
- Add IPSEC offload support to netdevsim, from Shannon Nelson.
- Add support for slotting with non-uniform distribution to netem
packet scheduler, from Yousuk Seung.
- Add UDP GSO support to mlx5e, from Boris Pismenny.
- Support offloading of Team LAG in NFP, from John Hurley.
- Allow to configure TX queue selection based upon RX queue, from
Amritha Nambiar.
- Support ethtool ring size configuration in aquantia, from Anton
Mikaev.
- Support DSCP and flowlabel per-transport in SCTP, from Xin Long.
- Support list based batching and stack traversal of SKBs, this is
very exciting work. From Edward Cree.
- Busyloop optimizations in vhost_net, from Toshiaki Makita.
- Introduce the ETF qdisc, which allows time based transmissions. IGB
can offload this in hardware. From Vinicius Costa Gomes.
- Add parameter support to devlink, from Moshe Shemesh.
- Several multiplication and division optimizations for BPF JIT in
nfp driver, from Jiong Wang.
- Lots of prepatory work to make more of the packet scheduler layer
lockless, when possible, from Vlad Buslov.
- Add ACK filter and NAT awareness to sch_cake packet scheduler, from
Toke Høiland-Jørgensen.
- Support regions and region snapshots in devlink, from Alex Vesker.
- Allow to attach XDP programs to both HW and SW at the same time on
a given device, with initial support in nfp. From Jakub Kicinski.
- Add TLS RX offload and support in mlx5, from Ilya Lesokhin.
- Use PHYLIB in r8169 driver, from Heiner Kallweit.
- All sorts of changes to support Spectrum 2 in mlxsw driver, from
Ido Schimmel.
- PTP support in mv88e6xxx DSA driver, from Andrew Lunn.
- Make TCP_USER_TIMEOUT socket option more accurate, from Jon
Maxwell.
- Support for templates in packet scheduler classifier, from Jiri
Pirko.
- IPV6 support in RDS, from Ka-Cheong Poon.
- Native tproxy support in nf_tables, from Máté Eckl.
- Maintain IP fragment queue in an rbtree, but optimize properly for
in-order frags. From Peter Oskolkov.
- Improvde handling of ACKs on hole repairs, from Yuchung Cheng"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1996 commits)
bpf: test: fix spelling mistake "REUSEEPORT" -> "REUSEPORT"
hv/netvsc: Fix NULL dereference at single queue mode fallback
net: filter: mark expected switch fall-through
xen-netfront: fix warn message as irq device name has '/'
cxgb4: Add new T5 PCI device ids 0x50af and 0x50b0
net: dsa: mv88e6xxx: missing unlock on error path
rds: fix building with IPV6=m
inet/connection_sock: prefer _THIS_IP_ to current_text_addr
net: dsa: mv88e6xxx: bitwise vs logical bug
net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd()
ieee802154: hwsim: using right kind of iteration
net: hns3: Add vlan filter setting by ethtool command -K
net: hns3: Set tx ring' tc info when netdev is up
net: hns3: Remove tx ring BD len register in hns3_enet
net: hns3: Fix desc num set to default when setting channel
net: hns3: Fix for phy link issue when using marvell phy driver
net: hns3: Fix for information of phydev lost problem when down/up
net: hns3: Fix for command format parsing error in hclge_is_all_function_id_zero
net: hns3: Add support for serdes loopback selftest
bnxt_en: take coredump_record structure off stack
...
It's been busy summer weeks and hence lots of changes, partly for a
few new drivers and partly for a wide range of fixes.
Here are highlights:
ALSA Core:
- Fix rawmidi buffer management, code cleanup / refactoring
- Fix the SG-buffer page handling with incorrect fallback size
- Fix the stall at virmidi trigger callback with a large buffer;
also offloading and code-refactoring along with it
- Various ALSA sequencer code cleanups
ASoC:
- Deploy the standard snd_pcm_stop_xrun() helper in several drivers
- Support for providing name prefixes to generic component nodes
- Quite a few fixes for DPCM as it gains a bit wider use and more
robust testing
- Generalization of the DIO2125 support to a simple amplifier driver
- Accessory detection support for the audio graph card
- DT support for PXA AC'97 devices
- Quirks for a number of new x86 systems
- Support for AM Logic Meson, Everest ES7154, Intel systems with
RT5682, Qualcomm QDSP6 and WCD9335, Realtek RT5682 and TI TAS5707
HD-audio:
- Code refactoring in HD-audio ext codec codes to drop own classes;
preliminary works for the upcoming legacy codec support
- Generalized DRM audio component for the upcoming radeon / amdgpu
support
- Unification of mic mute-LED and GPIO support for various codecs
- Further improvement of CA0132 codec support including Recon3D
- Proper vga_switcheroo handling for AMD i-GPU
- Update of model list in documentation
- Fixups for another HP Spectre x360, Conexant codecs, power-save
blacklist update
USB-audio:
- Fix the invalid sample rate setup with external clock
- Support of UAC3 selector units and processing units
- Basic UAC3 power-domain support
- Support for Encore mDSD and Thesycon-based DSD devices
- Preparation for future complete callback changes
Firewire:
- Add support for MOTU Traveler
Misc:
- The endianess notation fixes in various drivers
- Add fall-through comment in lots of drivers
- Various sparse warning fixes, e.g. about PCM format types
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Merge tag 'sound-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It's been busy summer weeks and hence lots of changes, partly for a
few new drivers and partly for a wide range of fixes.
Here are highlights:
ALSA Core:
- Fix rawmidi buffer management, code cleanup / refactoring
- Fix the SG-buffer page handling with incorrect fallback size
- Fix the stall at virmidi trigger callback with a large buffer; also
offloading and code-refactoring along with it
- Various ALSA sequencer code cleanups
ASoC:
- Deploy the standard snd_pcm_stop_xrun() helper in several drivers
- Support for providing name prefixes to generic component nodes
- Quite a few fixes for DPCM as it gains a bit wider use and more
robust testing
- Generalization of the DIO2125 support to a simple amplifier driver
- Accessory detection support for the audio graph card
- DT support for PXA AC'97 devices
- Quirks for a number of new x86 systems
- Support for AM Logic Meson, Everest ES7154, Intel systems with
RT5682, Qualcomm QDSP6 and WCD9335, Realtek RT5682 and TI TAS5707
HD-audio:
- Code refactoring in HD-audio ext codec codes to drop own classes;
preliminary works for the upcoming legacy codec support
- Generalized DRM audio component for the upcoming radeon / amdgpu
support
- Unification of mic mute-LED and GPIO support for various codecs
- Further improvement of CA0132 codec support including Recon3D
- Proper vga_switcheroo handling for AMD i-GPU
- Update of model list in documentation
- Fixups for another HP Spectre x360, Conexant codecs, power-save
blacklist update
USB-audio:
- Fix the invalid sample rate setup with external clock
- Support of UAC3 selector units and processing units
- Basic UAC3 power-domain support
- Support for Encore mDSD and Thesycon-based DSD devices
- Preparation for future complete callback changes
Firewire:
- Add support for MOTU Traveler
Misc:
- The endianess notation fixes in various drivers
- Add fall-through comment in lots of drivers
- Various sparse warning fixes, e.g. about PCM format types"
* tag 'sound-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (529 commits)
ASoC: adav80x: mark expected switch fall-through
ASoC: da7219: Add delays to capture path to remove DC offset noise
ALSA: usb-audio: Mark expected switch fall-through
ALSA: mixart: Mark expected switch fall-through
ALSA: opl3: Mark expected switch fall-through
ALSA: hda/ca0132 - Add exit commands for Recon3D
ALSA: hda/ca0132 - Change mixer controls for Recon3D
ALSA: hda/ca0132 - Add Recon3D input and output select commands
ALSA: hda/ca0132 - Add DSP setup defaults for Recon3D
ALSA: hda/ca0132 - Add Recon3D startup functions and setup
ALSA: hda/ca0132 - Add bool variable to enable/disable pci region2 mmio
ALSA: hda/ca0132 - Add Recon3D pincfg
ALSA: hda/ca0132 - Add quirk ID and enum for Recon3D
ALSA: hda/ca0132 - Add alt_functions unsolicited response
ALSA: hda/ca0132 - Clean up ca0132_init function.
ALSA: hda/ca0132 - Create mmio gpio function to make code clearer
ASoC: wm_adsp: Make DSP name configurable by codec driver
ASoC: wm_adsp: Declare firmware controls from codec driver
ASoC: max98373: Added software reset register to readable registers
ASoC: wm_adsp: Correct DSP pointer for preloader control
...
- Add a new framework for CPU idle time injection (Daniel Lezcano).
- Add AVS support to the armada-37xx cpufreq driver (Gregory CLEMENT).
- Add support for current CPU frequency reporting to the ACPI CPPC
cpufreq driver (George Cherian).
- Rework the cooling device registration in the imx6q/thermal
driver (Bastian Stender).
- Make the pcc-cpufreq driver refuse to work with dynamic
scaling governors on systems with many CPUs to avoid
scalability issues with it (Rafael Wysocki).
- Fix the intel_pstate driver to report different maximum CPU
frequencies on systems where they really are different and to
ignore the turbo active ratio if hardware-managend P-states (HWP)
are in use; make it use the match_string() helper (Xie Yisheng,
Srinivas Pandruvada).
- Fix a minor deferred probe issue in the qcom-kryo cpufreq
driver (Niklas Cassel).
- Add a tracepoint for the tracking of frequency limits changes
(from Andriod) to the cpufreq core (Ruchi Kandoi).
- Fix a circular lock dependency between CPU hotplug and sysfs
locking in the cpufreq core reported by lockdep (Waiman Long).
- Avoid excessive error reports on driver registration failures
in the ARM cpuidle driver (Sudeep Holla).
- Add a new device links flag to the driver core to make links go
away automatically on supplier driver removal (Vivek Gautam).
- Eliminate potential race condition between system-wide power
management transitions and system shutdown (Pingfan Liu).
- Add a quirk to save NVS memory on system suspend for the ASUS
1025C laptop (Willy Tarreau).
- Make more systems use suspend-to-idle (instead of ACPI S3) by
default (Tristian Celestin).
- Get rid of stack VLA usage in the low-level hibernation code on
64-bit x86 (Kees Cook).
- Fix error handling in the hibernation core and mark an expected
fall-through switch in it (Chengguang Xu, Gustavo Silva).
- Extend the generic power domains (genpd) framework to support
attaching a device to a power domain by name (Ulf Hansson).
- Fix device reference counting and user limits initialization in
the devfreq core (Arvind Yadav, Matthias Kaehlcke).
- Fix a few issues in the rk3399_dmc devfreq driver and improve its
documentation (Enric Balletbo i Serra, Lin Huang, Nick Milner).
- Drop a redundant error message from the exynos-ppmu devfreq driver
(Markus Elfring).
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Merge tag 'pm-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These add a new framework for CPU idle time injection, to be used by
all of the idle injection code in the kernel in the future, fix some
issues and add a number of relatively small extensions in multiple
places.
Specifics:
- Add a new framework for CPU idle time injection (Daniel Lezcano).
- Add AVS support to the armada-37xx cpufreq driver (Gregory
CLEMENT).
- Add support for current CPU frequency reporting to the ACPI CPPC
cpufreq driver (George Cherian).
- Rework the cooling device registration in the imx6q/thermal driver
(Bastian Stender).
- Make the pcc-cpufreq driver refuse to work with dynamic scaling
governors on systems with many CPUs to avoid scalability issues
with it (Rafael Wysocki).
- Fix the intel_pstate driver to report different maximum CPU
frequencies on systems where they really are different and to
ignore the turbo active ratio if hardware-managend P-states (HWP)
are in use; make it use the match_string() helper (Xie Yisheng,
Srinivas Pandruvada).
- Fix a minor deferred probe issue in the qcom-kryo cpufreq driver
(Niklas Cassel).
- Add a tracepoint for the tracking of frequency limits changes (from
Andriod) to the cpufreq core (Ruchi Kandoi).
- Fix a circular lock dependency between CPU hotplug and sysfs
locking in the cpufreq core reported by lockdep (Waiman Long).
- Avoid excessive error reports on driver registration failures in
the ARM cpuidle driver (Sudeep Holla).
- Add a new device links flag to the driver core to make links go
away automatically on supplier driver removal (Vivek Gautam).
- Eliminate potential race condition between system-wide power
management transitions and system shutdown (Pingfan Liu).
- Add a quirk to save NVS memory on system suspend for the ASUS 1025C
laptop (Willy Tarreau).
- Make more systems use suspend-to-idle (instead of ACPI S3) by
default (Tristian Celestin).
- Get rid of stack VLA usage in the low-level hibernation code on
64-bit x86 (Kees Cook).
- Fix error handling in the hibernation core and mark an expected
fall-through switch in it (Chengguang Xu, Gustavo Silva).
- Extend the generic power domains (genpd) framework to support
attaching a device to a power domain by name (Ulf Hansson).
- Fix device reference counting and user limits initialization in the
devfreq core (Arvind Yadav, Matthias Kaehlcke).
- Fix a few issues in the rk3399_dmc devfreq driver and improve its
documentation (Enric Balletbo i Serra, Lin Huang, Nick Milner).
- Drop a redundant error message from the exynos-ppmu devfreq driver
(Markus Elfring)"
* tag 'pm-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (35 commits)
PM / reboot: Eliminate race between reboot and suspend
PM / hibernate: Mark expected switch fall-through
cpufreq: intel_pstate: Ignore turbo active ratio in HWP
cpufreq: Fix a circular lock dependency problem
cpu/hotplug: Add a cpus_read_trylock() function
x86/power/hibernate_64: Remove VLA usage
cpufreq: trace frequency limits change
cpufreq: intel_pstate: Show different max frequency with turbo 3 and HWP
cpufreq: pcc-cpufreq: Disable dynamic scaling on many-CPU systems
cpufreq: qcom-kryo: Silently error out on EPROBE_DEFER
cpufreq / CPPC: Add cpuinfo_cur_freq support for CPPC
cpufreq: armada-37xx: Add AVS support
dt-bindings: marvell: Add documentation for the Armada 3700 AVS binding
PM / devfreq: rk3399_dmc: Fix duplicated opp table on reload.
PM / devfreq: Init user limits from OPP limits, not viceversa
PM / devfreq: rk3399_dmc: fix spelling mistakes.
PM / devfreq: rk3399_dmc: do not print error when get supply and clk defer.
dt-bindings: devfreq: rk3399_dmc: move interrupts to be optional.
PM / devfreq: rk3399_dmc: remove wait for dcf irq event.
dt-bindings: clock: add rk3399 DDR3 standard speed bins.
...
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Merge tag 'for-4.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"Mostly fixes and cleanups, nothing big, though the notable thing is
the inserted/deleted lines delta -1124.
User visible changes:
- allow defrag on opened read-only files that have rw permissions;
similar to what dedupe will allow on such files
Core changes:
- tree checker improvements, reported by fuzzing:
* more checks for: block group items, essential trees
* chunk type validation
* mount time cross-checks that physical and logical chunks match
* switch more error codes to EUCLEAN aka EFSCORRUPTED
Fixes:
- fsync corner case fixes
- fix send failure when root has deleted files still open
- send, fix incorrect file layout after hole punching beyond eof
- fix races between mount and deice scan ioctl, found by fuzzing
- fix deadlock when delayed iput is called from writeback on the same
inode; rare but has been observed in practice, also removes code
- fix pinned byte accounting, using the right percpu helpers; this
should avoid some write IO inefficiency during low space conditions
- don't remove block group that still has pinned bytes
- reset on-disk device stats value after replace, otherwise this
would report stale values for the new device
Cleanups:
- time64_t/timespec64 cleanups
- remove remaining dead code in scrub handling NOCOW extents after
disabling it in previous cycle
- simplify fsync regarding ordered extents logic and remove all the
related code
- remove redundant arguments in order to reduce stack space
consumption
- remove support for V0 type of extents, not in use since 2.6.30
- remove several unused structure members
- fewer indirect function calls by inlining some callbacks
- qgroup rescan timing fixes
- vfs: iget cleanups"
* tag 'for-4.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (182 commits)
btrfs: revert fs_devices state on error of btrfs_init_new_device
btrfs: Exit gracefully when chunk map cannot be inserted to the tree
btrfs: Introduce mount time chunk <-> dev extent mapping check
btrfs: Verify that every chunk has corresponding block group at mount time
btrfs: Check that each block group has corresponding chunk at mount time
Btrfs: send, fix incorrect file layout after hole punching beyond eof
btrfs: Use wrapper macro for rcu string to remove duplicate code
btrfs: simplify btrfs_iget
btrfs: lift make_bad_inode into btrfs_iget
btrfs: simplify IS_ERR/PTR_ERR checks
btrfs: btrfs_iget never returns an is_bad_inode inode
btrfs: replace: Reset on-disk dev stats value after replace
btrfs: extent-tree: Remove unused __btrfs_free_block_rsv
btrfs: backref: Use ERR_CAST to return error code
btrfs: Remove redundant btrfs_release_path from btrfs_unlink_subvol
btrfs: Remove root parameter from btrfs_unlink_subvol
btrfs: Remove fs_info from btrfs_add_root_ref
btrfs: Remove fs_info from btrfs_del_root_ref
btrfs: Remove fs_info from btrfs_del_root
btrfs: Remove fs_info from btrfs_delete_delayed_dir_index
...
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Merge tag 'locks-v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull file locking updates from Jeff Layton:
"Just a couple of patches from Konstantin to fix /proc/locks when the
process that set the lock has exited, and a new tracepoint for the
flock() codepath. Also threw in mailmap entries for my addresses and a
comment cleanup"
* tag 'locks-v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
locks: remove misleading obsolete comment
mailmap: remap some of my email addresses to kernel.org address
locks: add tracepoint in flock codepath
fs/lock: show locks taken by processes from another pidns
fs/lock: skip lock owner pid translation in case we are in init_pid_ns
There is an unalignment access about the structure
'trace_event_raw_fib_table_lookup'.
In include/trace/events/fib.h, there is a memory operation which casting
the 'src' data member to a pointer, and then store a value to this
pointer point to.
p32 = (__be32 *) __entry->src;
*p32 = flp->saddr;
The offset of 'src' in structure trace_event_raw_fib_table_lookup is not
four bytes alignment. On some architectures, they don't permit the
unalignment access, it need to pay the price to handle this situation in
exception handler.
Adjust the layout of structure to avoid this case.
Fixes: 9f323973c9 ("net/ipv4: Udate fib_table_lookup tracepoint")
Signed-off-by: Zong Li <zong@andestech.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We used to call btrfs_file_extent_inline_len() to get the uncompressed
data size of an inlined extent.
However this function is hiding evil, for compressed extent, it has no
choice but to directly read out ram_bytes from btrfs_file_extent_item.
While for uncompressed extent, it uses item size to calculate the real
data size, and ignoring ram_bytes completely.
In fact, for corrupted ram_bytes, due to above behavior kernel
btrfs_print_leaf() can't even print correct ram_bytes to expose the bug.
Since we have the tree-checker to verify all EXTENT_DATA, such mismatch
can be detected pretty easily, thus we can trust ram_bytes without the
evil btrfs_file_extent_inline_len().
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This is no longer used anywhere, remove all of it.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Fix the ACK proposal tracepoint outcomes list by making the one that's an
empty string not an empty string - which gets rendered as a hex number
string instead.
Signed-off-by: David Howells <dhowells@redhat.com>
Trace successful packet transmission (kernel_sendmsg() succeeded, that is)
in AF_RXRPC. We can share the enum that defines the transmission points
with the trace_rxrpc_tx_fail() tracepoint, so rename its constants to be
applicable to both.
Also, save the internal call->debug_id in the rxrpc_channel struct so that
it can be used in retransmission trace lines.
Signed-off-by: David Howells <dhowells@redhat.com>
Jaegeuk Kim