07 May, 2019
2 commits
-
Pull power management updates from Rafael Wysocki:
"These fix the (Intel-specific) Performance and Energy Bias Hint (EPB)
handling and expose it to user space via sysfs, fix and clean up
several cpufreq drivers, add support for two new chips to the qoriq
cpufreq driver, fix, simplify and clean up the cpufreq core and the
schedutil governor, add support for "CPU" domains to the generic power
domains (genpd) framework and provide low-level PSCI firmware support
for that feature, fix the exynos cpuidle driver and fix a couple of
issues in the devfreq subsystem and clean it up.Specifics:
- Fix the handling of Performance and Energy Bias Hint (EPB) on Intel
processors and expose it to user space via sysfs to avoid having to
access it through the generic MSR I/F (Rafael Wysocki).- Improve the handling of global turbo changes made by the platform
firmware in the intel_pstate driver (Rafael Wysocki).- Convert some slow-path static_cpu_has() callers to boot_cpu_has()
in cpufreq (Borislav Petkov).- Fix the frequency calculation loop in the armada-37xx cpufreq
driver (Gregory CLEMENT).- Fix possible object reference leaks in multuple cpufreq drivers
(Wen Yang).- Fix kerneldoc comment in the centrino cpufreq driver (dongjian).
- Clean up the ACPI and maple cpufreq drivers (Viresh Kumar, Mohan
Kumar).- Add support for lx2160a and ls1028a to the qoriq cpufreq driver
(Vabhav Sharma, Yuantian Tang).- Fix kobject memory leak in the cpufreq core (Viresh Kumar).
- Simplify the IOwait boosting in the schedutil cpufreq governor and
rework the TSC cpufreq notifier on x86 (Rafael Wysocki).- Clean up the cpufreq core and statistics code (Yue Hu, Kyle Lin).
- Improve the cpufreq documentation, add SPDX license tags to some PM
documentation files and unify copyright notices in them (Rafael
Wysocki).- Add support for "CPU" domains to the generic power domains (genpd)
framework and provide low-level PSCI firmware support for that
feature (Ulf Hansson).- Rearrange the PSCI firmware support code and add support for
SYSTEM_RESET2 to it (Ulf Hansson, Sudeep Holla).- Improve genpd support for devices in multiple power domains (Ulf
Hansson).- Unify target residency for the AFTR and coupled AFTR states in the
exynos cpuidle driver (Marek Szyprowski).- Introduce new helper routine in the operating performance points
(OPP) framework (Andrew-sh.Cheng).- Add support for passing on-die termination (ODT) and auto power
down parameters from the kernel to Trusted Firmware-A (TF-A) to the
rk3399_dmc devfreq driver (Enric Balletbo i Serra).- Add tracing to devfreq (Lukasz Luba).
- Make the exynos-bus devfreq driver suspend all devices on system
shutdown (Marek Szyprowski).- Fix a few minor issues in the devfreq subsystem and clean it up
somewhat (Enric Balletbo i Serra, MyungJoo Ham, Rob Herring,
Saravana Kannan, Yangtao Li).- Improve system wakeup diagnostics (Stephen Boyd).
- Rework filesystem sync messages emitted during system suspend and
hibernation (Harry Pan)"* tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (72 commits)
cpufreq: Fix kobject memleak
cpufreq: armada-37xx: fix frequency calculation for opp
cpufreq: centrino: Fix centrino_setpolicy() kerneldoc comment
cpufreq: qoriq: add support for lx2160a
x86: tsc: Rework time_cpufreq_notifier()
PM / Domains: Allow to attach a CPU via genpd_dev_pm_attach_by_id|name()
PM / Domains: Search for the CPU device outside the genpd lock
PM / Domains: Drop unused in-parameter to some genpd functions
PM / Domains: Use the base device for driver_deferred_probe_check_state()
cpufreq: qoriq: Add ls1028a chip support
PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain
PM / Domains: Allow OF lookup for multi PM domain case from ->attach_dev()
PM / Domains: Don't kfree() the virtual device in the error path
cpufreq: Move ->get callback check outside of __cpufreq_get()
PM / Domains: remove unnecessary unlikely()
cpufreq: Remove needless bios_limit check in show_bios_limit()
drivers/cpufreq/acpi-cpufreq.c: This fixes the following checkpatch warning
firmware/psci: add support for SYSTEM_RESET2
PM / devfreq: add tracing for scheduling work
trace: events: add devfreq trace event file
... -
Pull timer updates from Ingo Molnar:
"This cycle had the following changes:- Timer tracing improvements (Anna-Maria Gleixner)
- Continued tasklet reduction work: remove the hrtimer_tasklet
(Thomas Gleixner)- Fix CPU hotplug remove race in the tick-broadcast mask handling
code (Thomas Gleixner)- Force upper bound for setting CLOCK_REALTIME, to fix ABI
inconsistencies with handling values that are close to the maximum
supported and the vagueness of when uptime related wraparound might
occur. Make the consistent maximum the year 2232 across all
relevant ABIs and APIs. (Thomas Gleixner)- various cleanups and smaller fixes"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick: Fix typos in comments
tick/broadcast: Fix warning about undefined tick_broadcast_oneshot_offline()
timekeeping: Force upper bound for setting CLOCK_REALTIME
timer/trace: Improve timer tracing
timer/trace: Replace deprecated vsprintf pointer extension %pf by %ps
timer: Move trace point to get proper index
tick/sched: Update tick_sched struct documentation
tick: Remove outgoing CPU from broadcast masks
timekeeping: Consistently use unsigned int for seqcount snapshot
softirq: Remove tasklet_hrtimer
xfrm: Replace hrtimer tasklet with softirq hrtimer
mac80211_hwsim: Replace hrtimer tasklet with softirq hrtimer
16 Apr, 2019
1 commit
-
The patch adds a new file for with trace events for devfreq
framework. They are used for performance analysis of the framework.
It also contains updates in MAINTAINERS file adding new entry for
devfreq maintainers.Signed-off-by: Lukasz Luba
Reviewed-by: Chanwoo Choi
Signed-off-by: MyungJoo Ham
05 Apr, 2019
1 commit
-
At Linux Plumbers, Andy Lutomirski approached me and pointed out that the
function call syscall_get_arguments() implemented in x86 was horribly
written and not optimized for the standard case of passing in 0 and 6 for
the starting index and the number of system calls to get. When looking at
all the users of this function, I discovered that all instances pass in only
0 and 6 for these arguments. Instead of having this function handle
different cases that are never used, simply rewrite it to return the first 6
arguments of a system call.This should help out the performance of tracing system calls by ptrace,
ftrace and perf.Link: http://lkml.kernel.org/r/20161107213233.754809394@goodmis.org
Cc: Oleg Nesterov
Cc: Kees Cook
Cc: Andy Lutomirski
Cc: Dominik Brodowski
Cc: Dave Martin
Cc: "Dmitry V. Levin"
Cc: x86@kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-um@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Acked-by: Paul Burton # MIPS parts
Acked-by: Max Filippov # For xtensa changes
Acked-by: Will Deacon # For the arm64 bits
Reviewed-by: Thomas Gleixner # for x86
Reviewed-by: Dmitry V. Levin
Reported-by: Andy Lutomirski
Signed-off-by: Steven Rostedt (VMware)
25 Mar, 2019
2 commits
-
Timers are added to the timer wheel off by one. This is required in
case a timer is queued directly before incrementing jiffies to prevent
early timer expiry.When reading a timer trace and relying only on the expiry time of the timer
in the timer_start trace point and on the now in the timer_expiry_entry
trace point, it seems that the timer fires late. With the current
timer_expiry_entry trace point information only now=jiffies is printed but
not the value of base->clk. This makes it impossible to draw a conclusion
to the index of base->clk and makes it impossible to examine timer problems
without additional trace points.Therefore add the base->clk value to the timer_expire_entry trace
point, to be able to calculate the index the timer base is located at
during collecting expired timers.Signed-off-by: Anna-Maria Gleixner
Signed-off-by: Thomas Gleixner
Cc: fweisbec@gmail.com
Cc: peterz@infradead.org
Cc: Steven Rostedt
Link: https://lkml.kernel.org/r/20190321120921.16463-5-anna-maria@linutronix.de -
Since commit 04b8eb7a4ccd ("symbol lookup: introduce
dereference_symbol_descriptor()") %pf is deprecated, because %ps is smart
enough to handle function pointer dereference on platforms where such a
dereference is required.While at it add proper line breaks to stay in the 80 character limit.
Signed-off-by: Anna-Maria Gleixner
Signed-off-by: Thomas Gleixner
Cc: fweisbec@gmail.com
Cc: peterz@infradead.org
Cc: Steven Rostedt
Link: https://lkml.kernel.org/r/20190321120921.16463-4-anna-maria@linutronix.de
17 Mar, 2019
1 commit
-
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:Bugfixes:
- Fix an Oops in SUNRPC back channel tracepoints
- Fix a SUNRPC client regression when handling oversized replies
- Fix the minimal size for SUNRPC reply buffer allocation
- rpc_decode_header() must always return a non-zero value on error
- Fix a typo in pnfs_update_layout()Cleanup:
- Remove redundant check for the reply length in call_decode()"* tag 'nfs-for-5.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: Remove redundant check for the reply length in call_decode()
SUNRPC: Handle the SYSTEM_ERR rpc error
SUNRPC: rpc_decode_header() must always return a non-zero value on error
SUNRPC: Use the ENOTCONN error on socket disconnect
SUNRPC: Fix the minimal size for reply buffer allocation
SUNRPC: Fix a client regression when handling oversized replies
pNFS: Fix a typo in pnfs_update_layout
fix null pointer deref in tracepoints in back channel
16 Mar, 2019
1 commit
-
Pull f2fs updates from Jaegeuk Kim:
"We've continued mainly to fix bugs in this round, as f2fs has been
shipped in more devices. Especially, we've focused on stabilizing
checkpoint=disable feature, and provided some interfaces for QA.Enhancements:
- expose FS_NOCOW_FL for pin_file
- run discard jobs at unmount time with timeout
- tune discarding thread to avoid idling which consumes power
- some checking codes to address vulnerabilities
- give random value to i_generation
- shutdown with more flags for QABug fixes:
- clean up stale objects when mount is failed along with
checkpoint=disable
- fix system being stuck due to wrong count by atomic writes
- handle some corrupted disk cases
- fix a deadlock in f2fs_read_inline_dirWe've also added some minor build error fixes and clean-up patches"
* tag 'f2fs-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (53 commits)
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
...
15 Mar, 2019
1 commit
-
Pull dmaengine updates from Vinod Koul:
- dmatest updates for modularizing common struct and code
- remove SG support for VDMA xilinx IP and updates to driver
- Update to dw driver to support Intel iDMA controllers multi-block
support- tegra updates for proper reporting of residue
- Add Snow Ridge ioatdma device id and support for IOATDMA v3.4
- struct_size() usage and useless LIST_HEAD cleanups in subsystem.
- qDMA controller driver for Layerscape SoCs
- stm32-dma PM Runtime support
- And usual updates to imx-sdma, sprd, Documentation, fsl-edma,
bcm2835, qcom_hidma etc* tag 'dmaengine-5.1-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (81 commits)
dmaengine: imx-sdma: fix consistent dma test failures
dmaengine: imx-sdma: add a test for imx8mq multi sdma devices
dmaengine: imx-sdma: add clock ratio 1:1 check
dmaengine: dmatest: move test data alloc & free into functions
dmaengine: dmatest: add short-hand `buf_size` var in dmatest_func()
dmaengine: dmatest: wrap src & dst data into a struct
dmaengine: ioatdma: support latency tolerance report (LTR) for v3.4
dmaengine: ioatdma: add descriptor pre-fetch support for v3.4
dmaengine: ioatdma: disable DCA enabling on IOATDMA v3.4
dmaengine: ioatdma: Add Snow Ridge ioatdma device id
dmaengine: sprd: Change channel id to slave id for DMA cell specifier
dt-bindings: dmaengine: sprd: Change channel id to slave id for DMA cell specifier
dmaengine: mv_xor: Use correct device for DMA API
Documentation :dmaengine: clarify DMA desc. pointer after submission
Documentation: dmaengine: fix dmatest.rst warning
dmaengine: k3dma: Add support for dma-channel-mask
dmaengine: k3dma: Delete axi_config
dmaengine: k3dma: Upgrade k3dma driver to support hisi_asp_dma hardware
Documentation: bindings: dma: Add binding for dma-channel-mask
Documentation: bindings: k3dma: Extend the k3dma driver binding to support hisi-asp
...
13 Mar, 2019
4 commits
-
for better map_blocks trace.
Signed-off-by: Chao Yu
Signed-off-by: Jaegeuk Kim -
This patch supports to trace f2fs_ioc_shutdown.
Signed-off-by: Chao Yu
Signed-off-by: Jaegeuk Kim -
Pull NFS client updates from Trond Myklebust:
"Highlights include:Stable fixes:
- Fixes for NFS I/O request leakages
- Fix error handling paths in the NFS I/O recoalescing code
- Reinitialise NFSv4.1 sequence results before retransmitting a
request
- Fix a soft lockup in the delegation recovery code
- Bulk destroy of layouts needs to be safe w.r.t. umount
- Prevent thundering herd issues when the SUNRPC socket is not
connected
- Respect RPC call timeouts when retrying transmissionFeatures:
- Convert rpc auth layer to use xdr_streams
- Config option to disable insecure RPCSEC_GSS crypto types
- Reduce size of RPC receive buffers
- Readdirplus optimization by cache mechanism
- Convert SUNRPC socket send code to use iov_iter()
- SUNRPC micro-optimisations to avoid indirect calls
- Add support for the pNFS LAYOUTERROR operation and use it with the
pNFS/flexfiles driver
- Add trace events to report non-zero NFS status codes
- Various removals of unnecessary dprintksBugfixes and cleanups:
- Fix a number of sparse warnings and documentation format warnings
- Fix nfs_parse_devname to not modify it's argument
- Fix potential corruption of page being written through pNFS/blocks
- fix xfstest generic/099 failures on nfsv3
- Avoid NFSv4.1 "false retries" when RPC calls are interrupted
- Abort I/O early if the pNFS/flexfiles layout segment was
invalidated
- Avoid unnecessary pNFS/flexfiles layout invalidations"* tag 'nfs-for-5.1-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (90 commits)
SUNRPC: Take the transport send lock before binding+connecting
SUNRPC: Micro-optimise when the task is known not to be sleeping
SUNRPC: Check whether the task was transmitted before rebind/reconnect
SUNRPC: Remove redundant calls to RPC_IS_QUEUED()
SUNRPC: Clean up
SUNRPC: Respect RPC call timeouts when retrying transmission
SUNRPC: Fix up RPC back channel transmission
SUNRPC: Prevent thundering herd when the socket is not connected
SUNRPC: Allow dynamic allocation of back channel slots
NFSv4.1: Bump the default callback session slot count to 16
SUNRPC: Convert remaining GFP_NOIO, and GFP_NOWAIT sites in sunrpc
NFS/flexfiles: Clean up mirror DS initialisation
NFS/flexfiles: Remove dead code in ff_layout_mirror_valid()
NFS/flexfile: Simplify nfs4_ff_layout_select_ds_stateid()
NFS/flexfile: Simplify nfs4_ff_layout_ds_version()
NFS/flexfiles: Simplify ff_layout_get_ds_cred()
NFS/flexfiles: Simplify nfs4_ff_find_or_create_ds_client()
NFS/flexfiles: Simplify nfs4_ff_layout_select_ds_fh()
NFS/flexfiles: Speed up read failover when DSes are down
NFS/flexfiles: Don't invalidate DS deviceids for being unresponsive
... -
Backchannel doesn't have the rq_task->tk_clientid pointer set.
Otherwise can lead to the following oops:
ocalhost login: [ 111.385319] BUG: unable to handle kernel NULL pointer dereference at 0000000000000004
[ 111.388073] #PF error: [normal kernel read fault]
[ 111.389452] PGD 80000000290d8067 P4D 80000000290d8067 PUD 75f25067 PMD 0
[ 111.391224] Oops: 0000 [#1] SMP PTI
[ 111.392151] CPU: 0 PID: 3533 Comm: NFSv4 callback Not tainted 5.0.0-rc7+ #1
[ 111.393787] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/02/2015
[ 111.396340] RIP: 0010:trace_event_raw_event_xprt_enq_xmit+0x6f/0xf0 [sunrpc]
[ 111.397974] Code: 00 00 00 48 89 ee 48 89 e7 e8 bd 0a 85 d7 48 85 c0 74 4a 41 0f b7 94 24 e0 00 00 00 48 89 e7 89 50 08 49 8b 94 24 a8 00 00 00 52 04 89 50 0c 49 8b 94 24 c0 00 00 00 8b 92 a8 00 00 00 0f ca
[ 111.402215] RSP: 0018:ffffb98743263cf8 EFLAGS: 00010286
[ 111.403406] RAX: ffffa0890fc3bc88 RBX: 0000000000000003 RCX: 0000000000000000
[ 111.405057] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb98743263cf8
[ 111.406656] RBP: ffffa0896f5368f0 R08: 0000000000000246 R09: 0000000000000000
[ 111.408437] R10: ffffe19b01c01500 R11: 0000000000000000 R12: ffffa08977d28a00
[ 111.410210] R13: 0000000000000004 R14: ffffa089315303f0 R15: ffffa08931530000
[ 111.411856] FS: 0000000000000000(0000) GS:ffffa0897bc00000(0000) knlGS:0000000000000000
[ 111.413699] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 111.415068] CR2: 0000000000000004 CR3: 000000002ac90004 CR4: 00000000001606f0
[ 111.416745] Call Trace:
[ 111.417339] xprt_request_enqueue_transmit+0x2b6/0x4a0 [sunrpc]
[ 111.418709] ? rpc_task_need_encode+0x40/0x40 [sunrpc]
[ 111.419957] call_bc_transmit+0xd5/0x170 [sunrpc]
[ 111.421067] __rpc_execute+0x7e/0x3f0 [sunrpc]
[ 111.422177] rpc_run_bc_task+0x78/0xd0 [sunrpc]
[ 111.423212] bc_svc_process+0x281/0x340 [sunrpc]
[ 111.424325] nfs41_callback_svc+0x130/0x1c0 [nfsv4]
[ 111.425430] ? remove_wait_queue+0x60/0x60
[ 111.426398] kthread+0xf5/0x130
[ 111.427155] ? nfs_callback_authenticate+0x50/0x50 [nfsv4]
[ 111.428388] ? kthread_bind+0x10/0x10
[ 111.429270] ret_from_fork+0x1f/0x30localhost login: [ 467.462259] BUG: unable to handle kernel NULL pointer dereference at 0000000000000004
[ 467.464411] #PF error: [normal kernel read fault]
[ 467.465445] PGD 80000000728c1067 P4D 80000000728c1067 PUD 728c0067 PMD 0
[ 467.466980] Oops: 0000 [#1] SMP PTI
[ 467.467759] CPU: 0 PID: 3517 Comm: NFSv4 callback Not tainted 5.0.0-rc7+ #1
[ 467.469393] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/02/2015
[ 467.471840] RIP: 0010:trace_event_raw_event_xprt_transmit+0x7c/0xf0 [sunrpc]
[ 467.473392] Code: f6 48 85 c0 74 4b 49 8b 94 24 98 00 00 00 48 89 e7 0f b7 92 e0 00 00 00 89 50 08 49 8b 94 24 98 00 00 00 48 8b 92 a8 00 00 00 52 04 89 50 0c 41 8b 94 24 a8 00 00 00 0f ca 89 50 10 41 8b 94
[ 467.477605] RSP: 0018:ffffabe7434fbcd0 EFLAGS: 00010282
[ 467.478793] RAX: ffff99720fc3bce0 RBX: 0000000000000003 RCX: 0000000000000000
[ 467.480409] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffabe7434fbcd0
[ 467.482011] RBP: ffff99726f631948 R08: 0000000000000246 R09: 0000000000000000
[ 467.483591] R10: 0000000070000000 R11: 0000000000000000 R12: ffff997277dfcc00
[ 467.485226] R13: 0000000000000000 R14: 0000000000000000 R15: ffff99722fecdca8
[ 467.486830] FS: 0000000000000000(0000) GS:ffff99727bc00000(0000) knlGS:0000000000000000
[ 467.488596] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 467.489931] CR2: 0000000000000004 CR3: 00000000270e6006 CR4: 00000000001606f0
[ 467.491559] Call Trace:
[ 467.492128] xprt_transmit+0x303/0x3f0 [sunrpc]
[ 467.493143] ? rpc_task_need_encode+0x40/0x40 [sunrpc]
[ 467.494328] call_bc_transmit+0x49/0x170 [sunrpc]
[ 467.495379] __rpc_execute+0x7e/0x3f0 [sunrpc]
[ 467.496451] rpc_run_bc_task+0x78/0xd0 [sunrpc]
[ 467.497467] bc_svc_process+0x281/0x340 [sunrpc]
[ 467.498507] nfs41_callback_svc+0x130/0x1c0 [nfsv4]
[ 467.499751] ? remove_wait_queue+0x60/0x60
[ 467.500686] kthread+0xf5/0x130
[ 467.501438] ? nfs_callback_authenticate+0x50/0x50 [nfsv4]
[ 467.502640] ? kthread_bind+0x10/0x10
[ 467.503454] ret_from_fork+0x1f/0x30Signed-off-by: Olga Kornievskaia
Signed-off-by: Trond Myklebust
11 Mar, 2019
1 commit
-
Pull networking fixes from David Miller:
"First batch of fixes in the new merge window:1) Double dst_cache free in act_tunnel_key, from Wenxu.
2) Avoid NULL deref in IN_DEV_MFORWARD() by failing early in the
ip_route_input_rcu() path, from Paolo Abeni.3) Fix appletalk compile regression, from Arnd Bergmann.
4) If SLAB objects reach the TCP sendpage method we are in serious
trouble, so put a debugging check there. From Vasily Averin.5) Memory leak in hsr layer, from Mao Wenan.
6) Only test GSO type on GSO packets, from Willem de Bruijn.
7) Fix crash in xsk_diag_put_umem(), from Eric Dumazet.
8) Fix VNIC mailbox length in nfp, from Dirk van der Merwe.
9) Fix race in ipv4 route exception handling, from Xin Long.
10) Missing DMA memory barrier in hns3 driver, from Jian Shen.
11) Use after free in __tcf_chain_put(), from Vlad Buslov.
12) Handle inet_csk_reqsk_queue_add() failures, from Guillaume Nault.
13) Return value correction when ip_mc_may_pull() fails, from Eric
Dumazet.14) Use after free in x25_device_event(), also from Eric"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (72 commits)
gro_cells: make sure device is up in gro_cells_receive()
vxlan: test dev->flags & IFF_UP before calling gro_cells_receive()
net/x25: fix use-after-free in x25_device_event()
isdn: mISDNinfineon: fix potential NULL pointer dereference
net: hns3: fix to stop multiple HNS reset due to the AER changes
ip: fix ip_mc_may_pull() return value
net: keep refcount warning in reqsk_free()
net: stmmac: Avoid one more sometimes uninitialized Clang warning
net: dsa: mv88e6xxx: Set correct interface mode for CPU/DSA ports
rxrpc: Fix client call queueing, waiting for channel
tcp: handle inet_csk_reqsk_queue_add() failures
net: ethernet: sun: Zero initialize class in default case in niu_add_ethtool_tcam_entry
8139too : Add support for U.S. Robotics USR997901A 10/100 Cardbus NIC
fou, fou6: avoid uninit-value in gue_err() and gue6_err()
net: sched: fix potential use-after-free in __tcf_chain_put()
vhost: silence an unused-variable warning
vsock/virtio: fix kernel panic from virtio_transport_reset_no_sock
connector: fix unsafe usage of ->real_parent
vxlan: do not need BH again in vxlan_cleanup()
net: hns3: add dma_rmb() for rx description
...
10 Mar, 2019
1 commit
-
Pull media updates from Mauro Carvalho Chehab:
- remove sensor drivers that got converted from soc_camera
- remaining soc_camera drivers got moved to staging
- some documentation cleanups and improvements
- the imx staging driver now supports imx7
- the ov9640, mt9m001 and mt9m111 got converted from soc_camera
- the vim2m driver now does what a m2m convert driver expects to do
- epoll() fixes on media subsystems
- several drivers fixes, typos, cleanups and improvements
* tag 'media/v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (346 commits)
media: dvb/earth-pt1: fix wrong initialization for demod blocks
media: vim2m: Address some coding style issues
media: vim2m: don't use BUG()
media: vim2m: speedup passthrough copy
media: vim2m: add an horizontal scaler
media: vim2m: don't accept YUYV anymore as output format
media: vim2m: add vertical linear scaler
media: vim2m: better handle cap/out buffers with different sizes
media: vim2m: use different framesizes for bayer formats
media: vim2m: add support for VIDIOC_ENUM_FRAMESIZES
media: vim2m: ensure that width is multiple of two
media: vim2m: improve debug messages
media: vim2m: add bayer capture formats
media: a few more typos at staging, pci, platform, radio and usb
media: Documentation: fix several typos
media: staging: fix several typos
media: include: fix several typos
media: common: fix several typos
media: v4l2-core: fix several typos
media: usb: fix several typos
...
09 Mar, 2019
3 commits
-
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+0x49/0xbeFixes: 45025bceef17 ("rxrpc: Improve management and caching of client connection objects")
Signed-off-by: David Howells
Reviewed-by: Marc Dionne
Signed-off-by: David S. Miller -
Pull i2c updates from Wolfram Sang:
- the I2C core gained helpers to assist drivers in handling their
suspended state, and drivers were converted to use it- two new fault-injectors for stress-testing
- bigger refactoring and feature improvements for the ocores,
sh_mobile, and tegra drivers- platform_data removal for the at24 EEPROM driver
- ... and various improvements and bugfixes all over the subsystem
* 'i2c/for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (69 commits)
i2c: Allow recovery of the initial IRQ by an I2C client device.
i2c: ocores: turn incomplete kdoc into a comment
i2c: designware: Do not allow i2c_dw_xfer() calls while suspended
i2c: tegra: Only display error messages if DMA setup fails
i2c: gpio: fault-injector: add 'inject_panic' injector
i2c: gpio: fault-injector: add 'lose_arbitration' injector
i2c: tegra: remove multi-master support
i2c: tegra: remove master fifo support on tegra186
i2c: tegra: change phrasing, "fallbacking" to "falling back"
i2c: expand minor range when registering chrdev region
i2c: aspeed: Add multi-master use case support
i2c: core-smbus: don't trace smbus_reply data on errors
i2c: ocores: Add support for bus clock via platform data
i2c: ocores: Add support for IO mapper registers.
i2c: ocores: checkpatch fixes
i2c: ocores: add SPDX tag
i2c: ocores: add polling interface
i2c: ocores: do not handle IRQ if IF is not set
i2c: ocores: stop transfer on timeout
i2c: tegra: add i2c interface timing support
... -
Pull drm updates from Dave Airlie:
"This is the main drm pull request for the 5.1 merge window.The big changes I'd highlight are:
- nouveau has HMM support now, there is finally an in-tree user so we
can quieten down the rip it out people.
- i915 now enables fastboot by default on Skylake+
- Displayport Multistream support has been refactored and should
hopefully be more reliable.Core:
- header cleanups aiming towards removing drmP.h
- dma-buf fence seqnos to 64-bits
- common helper for DP mst hotplug for radeon,i915,amdgpu + new
refcounting scheme
- MST i2c improvements
- drm_syncobj_cb removal
- ARM FB compression fourcc
- P010 + P016 fourcc
- allwinner tiled format modifier
- i2c over aux I2C_M_STOP support
- DRM_AUTH handling fixesTTM:
- ref/unref renamingNew driver:
- ARM komeda display driverscheduler:
- refactor mirror list handling
- rework hw fence processing
- 0 run queue entity fixbridge:
- TI DS90C185 LVDS bridge
- thc631lvdm83d bridge improvements
- cadence + allwinner DSI ported to generic phypanels:
- Sitronix ST7701 panel
- Kingdisplay KD097D04
- LeMaker BL035-RGB-002
- PDA 91-00156-A0
- Innolux EE101IA-01Di915:
- Enable fastboot by default on SKL+/VLV/CHV
- Export RPCS configuration for ICL media driver
- Coffelake PCI ID
- CNL clocks setup fixes
- ACPI/PMIC support for MIPI/DSI
- Per-engine WA init for all engines
- Shrinker locking fixes
- Kerneldoc updates
- Lots of ring improvements and reset fixes
- Coffeelake GVT Support
- VFIO GVT EDID Region support
- runtime PM wakeref tracking
- ILK->IVB primary plane enable delays
- userptr mutex locking fixes
- DSI fixes
- LVDS/TV cleanups
- HW readout fixes
- LUT robustness fixes
- ICL display and watermark fixes
- gem mmap race fixamdgpu:
- add scheduled dependencies interface
- DCC on scanout surfaces
- vega10/20 BACO support
- Multiple IH rings on soc15
- XGMI locking fixes
- DC i2c/aux cleanups
- runtime SMU debug interface
- Kexec improvmeents
- SR-IOV fixes
- DC freesync + ABM fixes
- GDS fixes
- GPUVM fixes
- vega20 PCIE DPM switching fixes
- Context priority handling fixesradeon:
- fix missing break in evergreen parsernouveau:
- SVM support via HMMmsm:
- QCOM Compressed modifier supportexynos:
- s5pv210 rotator supportimx:
- zpos property support
- pending update fixesv3d:
- cache flush improvmentsvc4:
- reflection support
- HDMI overscan supporttegra:
- CEC refactoring
- HDMI audio fixes
- Tegra186 prep work
- SOR crossbar device tree fixessun4i:
- implicit fencing support
- YUV and scalar support improvements
- A23 support
- tiling fixesatmel-hlcdc:
- clipping and rotation property fixesqxl:
- BO and PRIME improvements
- generic fbdev emulationdw-hdmi:
- HDMI 2.0 2160p
- YUV420 ouputrockchip:
- implicit fencing support
- reflection proertiesvirtio-gpu:
- use generic fbdev emulationtilcdc:
- cpufreq vs crtc init fixrcar-du:
- R8A774C0 support
- D3/E3 RGB output routing fixes and DPAD0 support
- RA87744 LVDS supportbochs:
- atomic and generic fbdev emulation
- ID mismatch error on bochs loadmeson:
- remove firmware fbs"* tag 'drm-next-2019-03-06' of git://anongit.freedesktop.org/drm/drm: (1130 commits)
drm/amd/display: Use vrr friendly pageflip throttling in DC.
drm/imx: only send commit done event when all state has been applied
drm/imx: allow building under COMPILE_TEST
drm/imx: imx-tve: depend on COMMON_CLK
drm/imx: ipuv3-plane: add zpos property
drm/imx: ipuv3-plane: add function to query atomic update status
gpu: ipu-v3: prg: add function to get channel configure status
gpu: ipu-v3: pre: add double buffer status readback
drm/amdgpu: Bump amdgpu version for context priority override.
drm/amdgpu/powerplay: fix typo in BACO header guards
drm/amdgpu/powerplay: fix return codes in BACO code
drm/amdgpu: add missing license on baco files
drm/bochs: Fix the ID mismatch error
drm/nouveau/dmem: use dma addresses during migration copies
drm/nouveau/dmem: use physical vram addresses during migration copies
drm/nouveau/dmem: extend copy function to allow direct use of physical addresses
drm/nouveau/svm: new ioctl to migrate process memory to GPU memory
drm/nouveau/dmem: device memory helpers for SVM
drm/nouveau/svm: initial support for shared virtual memory
drm/nouveau: prepare for enabling svm with existing userspace interfaces
...
08 Mar, 2019
1 commit
-
Pull btrfs updates from David Sterba:
"This contains usual mix of new features, core changes and fixes; full
list below. I'm planning second pull request, with a few more fixes
that arrived recently but too close to merge window, will send it next
week.New features:
- support zstd compression levels
- new ioctl to unregister a device from the module (ie. reverse of
device scan)- scrub prints a message to log when it's about to start or finish
Core changes:
- qgroups can now skip part of a tree that does not get updated
during relocation, because this does not affect the quota
accounting, estimated speedup in run time is about 20%- the compression workspace management had to be enhanced due to zstd
requirements- various enospc fixes, when there's high fragmentation the
over-reservation can cause ENOSPC that might not happen after a
flush, in such cases try to wait if the situation improvesFixes:
- various ioctls could overwrite previous return value if
copy_to_user fails, fix this so the original error is reported- more reclaim vs GFP_KERNEL fixes
- other cleanups and refactoring
- fix a (valid) lockdep warning in a test when device replace is
destroying worker threads- make qgroup async transaction commit more aggressive, this avoids
some 'quota limit reached' errors if there are not enough data to
trigger transaction in order to flush- fix deadlock between snapshot deletion and quotas when backref
walking is called from context that already holds the same locks- fsync fixes:
- fix fsync after succession of renames of different files
- fix fsync after succession of renames and unlink/rmdir"* tag 'for-5.1-part1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (92 commits)
btrfs: Remove unnecessary casts in btrfs_read_root_item
Btrfs: remove assertion when searching for a key in a node/leaf
Btrfs: add missing error handling after doing leaf/node binary search
btrfs: drop the lock on error in btrfs_dev_replace_cancel
btrfs: ensure that a DUP or RAID1 block group has exactly two stripes
btrfs: init csum_list before possible free
Btrfs: remove no longer needed range length checks for deduplication
Btrfs: fix fsync after succession of renames and unlink/rmdir
Btrfs: fix fsync after succession of renames of different files
btrfs: honor path->skip_locking in backref code
btrfs: qgroup: Make qgroup async transaction commit more aggressive
btrfs: qgroup: Move reserved data accounting from btrfs_delayed_ref_head to btrfs_qgroup_extent_record
btrfs: scrub: remove unused nocow worker pointer
btrfs: scrub: add assertions for worker pointers
btrfs: scrub: convert scrub_workers_refcnt to refcount_t
btrfs: scrub: add scrub_lock lockdep check in scrub_workers_get
btrfs: scrub: fix circular locking dependency warning
btrfs: fix comment its device list mutex not volume lock
btrfs: extent_io: Kill the forward declaration of flush_write_bio
btrfs: Fix grossly misleading argument names in extent io search
...
06 Mar, 2019
1 commit
-
Pull networking updates from David Miller:
"Here we go, another merge window full of networking and #ebpf changes:1) Snoop DHCPACKS in batman-adv to learn MAC/IP pairs in the DHCP
range without dealing with floods of ARP traffic, from Linus
Lüssing.2) Throttle buffered multicast packet transmission in mt76, from
Felix Fietkau.3) Support adaptive interrupt moderation in ice, from Brett Creeley.
4) A lot of struct_size conversions, from Gustavo A. R. Silva.
5) Add peek/push/pop commands to bpftool, as well as bash completion,
from Stanislav Fomichev.6) Optimize sk_msg_clone(), from Vakul Garg.
7) Add SO_BINDTOIFINDEX, from David Herrmann.
8) Be more conservative with local resends due to local congestion,
from Yuchung Cheng.9) Allow vetoing of unsupported VXLAN FDBs, from Petr Machata.
10) Add health buffer support to devlink, from Eran Ben Elisha.
11) Add TXQ scheduling API to mac80211, from Toke Høiland-Jørgensen.
12) Add statistics to basic packet scheduler filter, from Cong Wang.
13) Add GRE tunnel support for mlxsw Spectrum-2, from Nir Dotan.
14) Lots of new IP tunneling forwarding tests, also from Nir Dotan.
15) Add 3ad stats to bonding, from Nikolay Aleksandrov.
16) Lots of probing improvements for bpftool, from Quentin Monnet.
17) Various nfp drive #ebpf JIT improvements from Jakub Kicinski.
18) Allow #ebpf programs to access gso_segs from skb shared info, from
Eric Dumazet.19) Add sock_diag support for AF_XDP sockets, from Björn Töpel.
20) Support 22260 iwlwifi devices, from Luca Coelho.
21) Use rbtree for ipv6 defragmentation, from Peter Oskolkov.
22) Add JMP32 instruction class support to #ebpf, from Jiong Wang.
23) Add spinlock support to #ebpf, from Alexei Starovoitov.
24) Support 256-bit keys and TLS 1.3 in ktls, from Dave Watson.
25) Add device infomation API to devlink, from Jakub Kicinski.
26) Add new timestamping socket options which are y2038 safe, from
Deepa Dinamani.27) Add RX checksum offloading for various sh_eth chips, from Sergei
Shtylyov.28) Flow offload infrastructure, from Pablo Neira Ayuso.
29) Numerous cleanups, improvements, and bug fixes to the PHY layer
and many drivers from Heiner Kallweit.30) Lots of changes to try and make packet scheduler classifiers run
lockless as much as possible, from Vlad Buslov.31) Support BCM957504 chip in bnxt_en driver, from Erik Burrows.
32) Add concurrency tests to tc-tests infrastructure, from Vlad
Buslov.33) Add hwmon support to aquantia, from Heiner Kallweit.
34) Allow 64-bit values for SO_MAX_PACING_RATE, from Eric Dumazet.
And I would be remiss if I didn't thank the various major networking
subsystem maintainers for integrating much of this work before I even
saw it. Alexei Starovoitov, Daniel Borkmann, Pablo Neira Ayuso,
Johannes Berg, Kalle Valo, and many others. Thank you!"* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2207 commits)
net/sched: avoid unused-label warning
net: ignore sysctl_devconf_inherit_init_net without SYSCTL
phy: mdio-mux: fix Kconfig dependencies
net: phy: use phy_modify_mmd_changed in genphy_c45_an_config_aneg
net: dsa: mv88e6xxx: add call to mv88e6xxx_ports_cmode_init to probe for new DSA framework
selftest/net: Remove duplicate header
sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79
net/mlx5e: Update tx reporter status in case channels were successfully opened
devlink: Add support for direct reporter health state update
devlink: Update reporter state to error even if recover aborted
sctp: call iov_iter_revert() after sending ABORT
team: Free BPF filter when unregistering netdev
ip6mr: Do not call __IP6_INC_STATS() from preemptible context
isdn: mISDN: Fix potential NULL pointer dereference of kzalloc
net: dsa: mv88e6xxx: support in-band signalling on SGMII ports with external PHYs
cxgb4/chtls: Prefix adapter flags with CXGB4
net-sysfs: Switch to bitmap_zalloc()
mellanox: Switch to bitmap_zalloc()
bpf: add test cases for non-pointer sanitiation logic
mlxsw: i2c: Extend initialization by querying resources data
...
05 Mar, 2019
1 commit
-
It is possible that a reporter state will be updated due to a recover flow
which is not triggered by a devlink health related operation, but as a side
effect of some other operation in the system.Expose devlink health API for a direct update of a reporter status.
Move devlink_health_reporter_state enum definition to devlink.h so it could
be used from drivers as a parameter of devlink_health_reporter_state_update.In addition, add trace_devlink_health_reporter_state_update to provide user
notification for reporter state change.Signed-off-by: Eran Ben Elisha
Acked-by: Jiri Pirko
Signed-off-by: David S. Miller
04 Mar, 2019
1 commit
25 Feb, 2019
3 commits
-
…s_qgroup_extent_record
[BUG]
Btrfs/139 will fail with a high probability if the testing machine (VM)
has only 2G RAM.Resulting the final write success while it should fail due to EDQUOT,
and the fs will have quota exceeding the limit by 16K.The simplified reproducer will be: (needs a 2G ram VM)
$ mkfs.btrfs -f $dev
$ mount $dev $mnt$ btrfs subv create $mnt/subv
$ btrfs quota enable $mnt
$ btrfs quota rescan -w $mnt
$ btrfs qgroup limit -e 1G $mnt/subv$ for i in $(seq -w 1 8); do
xfs_io -f -c "pwrite 0 128M" $mnt/subv/file_$i > /dev/null
echo "file $i written" > /dev/kmsg
done
$ sync
$ btrfs qgroup show -pcre --raw $mntThe last pwrite will not trigger EDQUOT and final 'qgroup show' will
show something like:qgroupid rfer excl max_rfer max_excl parent child
-------- ---- ---- -------- -------- ------ -----
0/5 16384 16384 none none --- ---
0/256 1073758208 1073758208 none 1073741824 --- ---And 1073758208 is larger than
> 1073741824.[CAUSE]
It's a bug in btrfs qgroup data reserved space management.For quota limit, we must ensure that:
reserved (data + metadata) + rfer/excl <= limitSince rfer/excl is only updated at transaction commmit time, reserved
space needs to be taken special care.One important part of reserved space is data, and for a new data extent
written to disk, we still need to take the reserved space until
rfer/excl numbers get updated.Originally when an ordered extent finishes, we migrate the reserved
qgroup data space from extent_io tree to delayed ref head of the data
extent, expecting delayed ref will only be cleaned up at commit
transaction time.However for small RAM machine, due to memory pressure dirty pages can be
flushed back to disk without committing a transaction.The related events will be something like:
file 1 written
btrfs_finish_ordered_io: ino=258 ordered offset=0 len=54947840
btrfs_finish_ordered_io: ino=258 ordered offset=54947840 len=5636096
btrfs_finish_ordered_io: ino=258 ordered offset=61153280 len=57344
btrfs_finish_ordered_io: ino=258 ordered offset=61210624 len=8192
btrfs_finish_ordered_io: ino=258 ordered offset=60583936 len=569344
cleanup_ref_head: num_bytes=54947840
cleanup_ref_head: num_bytes=5636096
cleanup_ref_head: num_bytes=569344
cleanup_ref_head: num_bytes=57344
cleanup_ref_head: num_bytes=8192
^^^^^^^^^^^^^^^^ This will free qgroup data reserved space
file 2 written
...
file 8 written
cleanup_ref_head: num_bytes=8192
...
btrfs_commit_transaction <<< the only transaction committed during
the testWhen file 2 is written, we have already freed 128M reserved qgroup data
space for ino 258. Thus later write won't trigger EDQUOT.This allows us to write more data beyond qgroup limit.
In my 2G ram VM, it could reach about 1.2G before hitting EDQUOT.
[FIX]
By moving reserved qgroup data space from btrfs_delayed_ref_head to
btrfs_qgroup_extent_record, we can ensure that reserved qgroup data
space won't be freed half way before commit transaction, thus fix the
problem.Fixes: f64d5ca86821 ("btrfs: delayed_ref: Add new function to record reserved space into delayed ref")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com> -
We've done this forever because of the voodoo around knowing how much
space we have. However, we have better ways of doing this now, and on
normal file systems we'll easily have a global reserve of 512MiB, and
since metadata chunks are usually 1GiB that means we'll allocate
metadata chunks more readily. Instead use the actual used amount when
determining if we need to allocate a chunk or not.This has a side effect for mixed block group fs'es where we are no
longer allocating enough chunks for the data/metadata requirements. To
deal with this add a ALLOC_CHUNK_FORCE step to the flushing state
machine. This will only get used if we've already made a full loop
through the flushing machinery and tried committing the transaction.If we have then we can try and force a chunk allocation since we likely
need it to make progress. This resolves issues I was seeing with
the mixed bg tests in xfstests without the new flushing state.Reviewed-by: Nikolay Borisov
Signed-off-by: Josef Bacik
[ merged with patch "add ALLOC_CHUNK_FORCE to the flushing code" ]
Signed-off-by: David Sterba -
Hit the new tracepoint once the vregion migration ends.
Signed-off-by: Jiri Pirko
Signed-off-by: Ido Schimmel
Signed-off-by: David S. Miller
24 Feb, 2019
1 commit
-
Also, extend neigh_state_str to include neigh dummy states
noarp and permanentFixes: 9c03b282badb ("trace: events: add a few neigh tracepoints")
Signed-off-by: Roopa Prabhu
Signed-off-by: David S. Miller
18 Feb, 2019
3 commits
-
Linux 5.0-rc7
* tag 'v5.0-rc7': (1667 commits)
Linux 5.0-rc7
Input: elan_i2c - add ACPI ID for touchpad in Lenovo V330-15ISK
Input: st-keyscan - fix potential zalloc NULL dereference
Input: apanel - switch to using brightness_set_blocking()
powerpc/64s: Fix possible corruption on big endian due to pgd/pud_present()
efi/arm: Revert "Defer persistent reservations until after paging_init()"
arm64, mm, efi: Account for GICv3 LPI tables in static memblock reserve table
sunrpc: fix 4 more call sites that were using stack memory with a scatterlist
include/linux/module.h: copy __init/__exit attrs to init/cleanup_module
Compiler Attributes: add support for __copy (gcc >= 9)
lib/crc32.c: mark crc32_le_base/__crc32c_le_base aliases as __pure
auxdisplay: ht16k33: fix potential user-after-free on module unload
x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls
i2c: bcm2835: Clear current buffer pointers and counts after a transfer
i2c: cadence: Fix the hold bit setting
drm: Use array_size() when creating lease
dm thin: fix bug where bio that overwrites thin block ignores FUA
Revert "exec: load_script: don't blindly truncate shebang string"
Revert "gfs2: read journal in large chunks to locate the head"
net: ethernet: freescale: set FEC ethtool regs version
...Signed-off-by: Mauro Carvalho Chehab
-
Backmerging for nouveau and imx that needed some fixes for next pulls.
Signed-off-by: Dave Airlie
-
The goal here is to trace neigh state changes covering all possible
neigh update paths. Plus have a specific trace point in neigh_update
to cover flags sent to neigh_update.Signed-off-by: Roopa Prabhu
Signed-off-by: David S. Miller
15 Feb, 2019
1 commit
-
If an smbus transfer fails, there's no guarantee that the output
buffer was written. So, avoid trying to show the output buffer when
tracing after an error. This was 'mostly harmless', but would trip
up kasan checking if left-over cruft in byte 0 is a large length,
causing us to read from unwritten memory.Signed-off-by: John Sperbeck
Reviewed-by: Steven Rostedt (VMware)
Signed-off-by: Wolfram Sang
14 Feb, 2019
6 commits
-
prepare_reply_buffer() and its NFSv4 equivalents expose the details
of the RPC header and the auth slack values to upper layer
consumers, creating a layering violation, and duplicating code.Remedy these issues by adding a new RPC client API that hides those
details from upper layers in a common helper function.Signed-off-by: Chuck Lever
Signed-off-by: Anna Schumaker -
Add infrastructure for trace points in the RPC_AUTH_GSS kernel
module, and add a few sample trace points. These report exceptional
or unexpected events, and observe the assignment of GSS sequence
numbers.Signed-off-by: Chuck Lever
Signed-off-by: Anna Schumaker -
- Recover some instruction count because I'm about to introduce a
few xdr_inline_decode call sites
- Replace dprintk() call sites with trace points
- Reduce the hot path so it fits in fewer cachelinesI've also renamed it rpc_decode_header() to match everything else
in the RPC client.Signed-off-by: Chuck Lever
Signed-off-by: Anna Schumaker -
Modernize and harden the code path that constructs each RPC Call
message.Signed-off-by: Chuck Lever
Signed-off-by: Anna Schumaker -
We don't want READ payloads that are partially in the head iovec and
in the page buffer because this requires pull-up, which can be
expensive.The NFS/RPC client tries hard to predict the size of the head iovec
so that the incoming READ data payload lands only in the page
vector, but it doesn't always get it right. To help diagnose such
problems, add a trace point in the logic that decodes READ-like
operations that reports whether pull-up is being done.Signed-off-by: Chuck Lever
Signed-off-by: Anna Schumaker -
This can help field troubleshooting without needing the overhead of
a full network capture (ie, tcpdump).Signed-off-by: Chuck Lever
Signed-off-by: Anna Schumaker
13 Feb, 2019
1 commit
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Human-readable flags make it easier to observe RPC scheduling
decisions and other operational details.Signed-off-by: Chuck Lever
Signed-off-by: Anna Schumaker
09 Feb, 2019
1 commit
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As vregion rehash is happening in delayed work, add some visibility to
the process using a few tracepoints.Signed-off-by: Jiri Pirko
Signed-off-by: Ido Schimmel
Signed-off-by: David S. Miller
08 Feb, 2019
2 commits
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Upon error discover, every driver can report it to the devlink health
mechanism via devlink_health_report function, using the appropriate
reporter registered to it. Driver can pass error specific context which
will be delivered to it as part of the dump / recovery callbacks.Once an error is reported, devlink health will do the following actions:
* A log is being send to the kernel trace events buffer
* Health status and statistics are being updated for the reporter instance
* Object dump is being taken and stored at the reporter instance (as long
as there is no other dump which is already stored)
* Auto recovery attempt is being done. Depends on:
- Auto Recovery configuration
- Grace period vs. Time since last recoverSigned-off-by: Eran Ben Elisha
Reviewed-by: Moshe Shemesh
Acked-by: Jiri Pirko
Signed-off-by: David S. Miller -
The CDMA push buffer can currently only handle opcodes that take a
single word parameter. However, the host1x implementation on Tegra186
and later supports opcodes that require multiple words as parameters.Unfortunately the way the push buffer is structured, these wide opcodes
cannot simply be composed of two regular opcodes because that could
result in the wide opcode being split across the end of the push buffer
and the final RESTART opcode required to wrap the push buffer around
would break the wide opcode.One way to fix this would be to remove the concept of slots to simplify
push buffer operations. However, that's not entirely trivial and should
be done in a separate patch. For now, simply use a different function
to push four-word opcodes into the push buffer. Technically only three
words are pushed, with the fourth word used as padding to preserve the
2-word alignment required by the slots abstraction. The fourth word is
always a NOP opcode.Additional care must be taken when the end of the push buffer is
reached. If a four-word opcode doesn't fit into the push buffer without
being split by the boundary, NOP opcodes will be introduced and the new
wide opcode placed at the beginning of the push buffer.Signed-off-by: Thierry Reding
