Daniel Borkmann
a67edbf4fb
bpf: add initial bpf tracepoints ...
This work adds a number of tracepoints to paths that are either
considered slow-path or exception-like states, where monitoring or
inspecting them would be desirable.
For bpf(2) syscall, tracepoints have been placed for main commands
when they succeed. In XDP case, tracepoint is for exceptions, that
is, f.e. on abnormal BPF program exit such as unknown or XDP_ABORTED
return code, or when error occurs during XDP_TX action and the packet
could not be forwarded.
Both have been split into separate event headers, and can be further
extended. Worst case, if they unexpectedly should get into our way in
future, they can also removed [1]. Of course, these tracepoints (like
any other) can be analyzed by eBPF itself, etc. Example output:
# ./perf record -a -e bpf:* sleep 10
# ./perf script
sock_example 6197 [005] 283.980322: bpf:bpf_map_create: map type=ARRAY ufd=4 key=4 val=8 max=256 flags=0
sock_example 6197 [005] 283.980721: bpf:bpf_prog_load: prog=a5ea8fa30ea6849c type=SOCKET_FILTER ufd=5
sock_example 6197 [005] 283.988423: bpf:bpf_prog_get_type: prog=a5ea8fa30ea6849c type=SOCKET_FILTER
sock_example 6197 [005] 283.988443: bpf:bpf_map_lookup_elem: map type=ARRAY ufd=4 key=[06 00 00 00] val=[00 00 00 00 00 00 00 00]
[...]
sock_example 6197 [005] 288.990868: bpf:bpf_map_lookup_elem: map type=ARRAY ufd=4 key=[01 00 00 00] val=[14 00 00 00 00 00 00 00]
swapper 0 [005] 289.338243: bpf:bpf_prog_put_rcu: prog=a5ea8fa30ea6849c type=SOCKET_FILTER
[1] https://lwn.net/Articles/705270/
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-25 13:17:47 -05:00
dmaengine updates for 4.10-rc1
2016-12-14 20:42:45 -08:00
A varied set of changes:
2016-12-16 11:23:34 -08:00
firmware /meson
fpga: Clarify how write_init works streaming modes
2016-11-29 15:51:49 -06:00
soc: fsl: add GUTS driver for QorIQ platforms
2016-11-29 09:17:20 +01:00
Merge branch 'thread-irq-simpler' into devel
2016-12-07 15:24:12 +01:00
iio: accel: st_accel: fix LIS3LV02 reading and scaling
2016-12-31 14:35:04 +00:00
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
- New Device Support
2016-12-19 08:16:26 -08:00
net/mlx4_core: Fix raw qp flow steering rules under SRIOV
2016-12-29 14:17:40 -05:00
net/mlx5: Push min-inline mode resolution helper into the core
2017-01-24 21:14:05 +02:00
mmc: mmc: Introduce mmc_abort_tuning()
2016-12-05 14:16:22 +01:00
This pull request contains the following notable changes:
2016-11-29 18:28:30 -08:00
netfilter: x_tables: pack percpu counter allocations
2016-12-06 21:42:19 +01:00
SCSI misc on 20161213
2016-12-14 10:49:33 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-12-17 20:17:04 -08:00
power: supply: bq27xxx_battery: Fix register map for BQ27510 and BQ27520
2016-11-23 23:37:27 +01:00
qed*: Add support for ndo_set_vf_trust
2017-01-01 21:02:14 -05:00
regulator: Fix regulator_get_error_flags() signature mismatch
2016-12-05 11:38:30 +00:00
net: netcp: extract eflag from desc for rx_hook handling
2017-01-07 21:03:50 -05:00
sunrpc: don't call sleeping functions from the notifier block callbacks
2017-01-12 15:56:40 -05:00
USB/PHY patches for 4.10-rc1
2016-12-13 11:10:36 -08:00
pci-v4.10-changes
2016-12-15 12:46:48 -08:00
ACPI/IORT: Make dma masks set-up IORT specific
2016-12-06 16:57:33 +01:00
ahci-remap.h: add ahci remapping definitions
2016-12-05 14:31:24 -05:00
move aio compat to fs/aio.c
2016-12-22 22:58:37 -05:00
alarmtimer: Add tracepoints for alarm timers
2016-12-01 14:45:08 +01:00
audit_log_{name,link_denied}: constify struct path
2016-12-05 19:00:38 -05:00
Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block
2016-12-13 10:19:16 -08:00
block: improve handling of the magic discard payload
2016-12-09 08:30:51 -07:00
SCSI misc on 20161213
2016-12-14 10:49:33 -08:00
block: add support for REQ_OP_WRITE_ZEROES
2016-12-01 07:58:40 -07:00
block: add blk_rq_payload_bytes
2017-01-13 15:17:04 -07:00
bpf: cgroup: annotate pointers in struct cgroup_bpf with __rcu
2016-12-17 11:14:25 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-01-17 15:19:37 -05:00
bpf: add initial bpf tracepoints
2017-01-25 13:17:47 -05:00
bpf: fix state equivalence
2016-12-08 13:31:11 -05:00
net: phy: bcm7xxx: Add entry for BCM7278
2017-01-22 16:58:31 -05:00
Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-22 09:25:45 -08:00
exec: Ensure mm->user_ns contains the execed files
2016-11-22 13:21:00 -06:00
cgroup: add support for eBPF programs
2016-11-25 16:25:52 -05:00
clk: add devm_get_clk_from_child() API
2016-12-08 16:37:33 -08:00
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
mm: cma: make linux/cma.h standalone includible
2016-12-12 18:55:08 -08:00
compiler-gcc.h: use "proved" instead of "proofed"
2016-12-12 18:55:09 -08:00
Merge branch 'scsi-target-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bvanassche/linux
2016-12-21 10:16:05 -08:00
TTY/Serial patches for 4.10-rc1
2016-12-13 11:18:24 -08:00
coredump: Ensure proper size of sparse core files
2017-01-14 19:32:40 -05:00
cpu/hotplug: Remove obsolete cpu hotplug register/unregister functions
2016-12-25 10:47:43 +01:00
cpufreq: Make cpufreq_update_policy() void
2016-11-21 14:35:43 +01:00
irqchip/armada-xp: Consolidate hotplug state space
2016-12-25 10:47:44 +01:00
cpuidle: Allow enforcing deepest idle state selection
2016-11-29 14:02:21 +01:00
x86/smpboot: Prevent false positive out of bounds cpumask access warning
2016-12-15 11:32:31 +01:00
This pull contains one set of changes: a conversion of the crypto DocBook
2016-12-17 16:00:34 -08:00
mm: Invalidate DAX radix tree entries only if appropriate
2016-12-26 20:29:24 -08:00
vfs: remove unused have_submounts() function
2016-12-03 20:51:49 -05:00
constify get_dcookie() and friends
2016-12-05 19:01:16 -05:00
Driver core patches for 4.10-rc1
2016-12-13 11:42:18 -08:00
devfreq_cooling: pass a pointer to devfreq in the power model callbacks
2016-11-23 10:07:35 +08:00
device: Implement a bus agnostic dev_num_vf routine
2017-01-20 11:43:17 -05:00
dma: add calls for dma_map_page_attrs and dma_unmap_page_attrs
2016-12-14 16:04:08 -08:00
dmaengine: dma_slave_config: add support for slave port window
2016-11-30 08:54:04 +05:30
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
EDAC: Document HW_EVENT_ERR_DEFERRED type
2016-12-15 08:58:12 -02:00
efi/x86: Prune invalid memory map entries and fix boot regression
2017-01-14 16:48:53 +01:00
elevator: make the rqhash helpers exported
2016-12-09 09:03:02 -07:00
dsa: mv88e6xxx: Optimise atu_get
2017-01-04 16:34:34 -05:00
f2fs: support multiple devices
2016-11-25 10:15:13 -08:00
constify alloc_file()
2016-12-05 19:01:16 -05:00
bpf: rework prog_digest into prog_tag
2017-01-16 14:03:31 -05:00
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2016-12-19 08:23:53 -08:00
fscrypt: Rename FS_WRITE_PATH_FL to FS_CTX_HAS_BOUNCE_BUFFER_FL
2016-12-11 16:33:18 -05:00
fsl/usb: Workarourd for USB erratum-A005697
2016-12-05 15:13:58 +01:00
fsnotify: constify the places working with ->f_path
2016-12-05 18:58:32 -05:00
Merge branch 'stable-4.10' of git://git.infradead.org/users/pcmoore/audit
2017-01-05 23:06:06 -08:00
This release has a few updates:
2016-12-15 13:49:34 -08:00
ktime: Get rid of the union
2016-12-25 17:21:22 +01:00
ACPI: Add FWNODE_ACPI_STATIC fwnode type
2016-11-29 15:57:42 +00:00
genhd: remove dead and duplicated scsi code
2016-12-22 11:48:20 -07:00
mm: rename __page_frag functions to __page_frag_cache, drop order from drain
2017-01-10 18:31:55 -08:00
Merge branches 'for-4.10/asus', 'for-4.10/cp2112', 'for-4.10/i2c-hid-nopower', 'for-4.10/intel-ish', 'for-4.10/mayflash', 'for-4.10/microsoft-surface-3', 'for-4.10/multitouch', 'for-4.10/sony', 'for-4.10/udraw-ps3', 'for-4.10/upstream' and 'for-4.10/wacom/generic' into for-linus
2016-12-14 10:12:26 +01:00
ktime: Get rid of the union
2016-12-25 17:21:22 +01:00
mm: join struct fault_env and vm_fault
2016-12-14 16:04:09 -08:00
hwrng: Make explicit that max >= 32 always
2016-11-21 22:50:45 +08:00
hwmon: (core) Rename groups parameter in API to extra_groups
2016-12-09 21:54:22 -08:00
vmbus: add support for dynamic device id's
2016-12-06 11:52:49 +01:00
i2c: use an IRQ to report Host Notify events, not alert
2016-11-24 16:22:06 +01:00
i2c: do not enable fall back to Host Notify by default
2017-01-12 20:06:15 +01:00
idr: reduce the number of bits per level from 8 to 6
2016-12-14 16:04:10 -08:00
wireless: move IEEE80211_NUM_ACS to ieee80211.h
2017-01-05 13:37:28 +01:00
bpf: reuse dev_is_mac_header_xmit for redirect
2016-11-27 20:38:47 -05:00
bridge: multicast to unicast
2017-01-24 12:39:52 -05:00
ima: on soft reboot, save the measurement list
2016-12-20 09:48:44 -08:00
module: extend 'rodata=off' boot cmdline parameter to module mappings
2016-11-27 16:15:33 -08:00
iommu/vt-d: Fix PASID table allocation
2016-11-19 09:42:35 -08:00
iomap: implement direct I/O
2016-11-30 14:36:01 +11:00
Merge branches 'arm/mediatek', 'arm/smmu', 'x86/amd', 's390', 'core' and 'arm/exynos' into next
2016-12-06 17:32:16 +01:00
ipv6 addrconf: Implemented enhanced DAD (RFC7527)
2016-12-03 23:21:37 -05:00
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
jump_labels: API for flushing deferred jump label updates
2017-01-12 14:33:16 +01:00
kdb: call vkdb_printf() from vprintk_default() only when wanted
2016-12-14 16:04:08 -08:00
Modules updates for v4.10
2016-12-14 20:12:43 -08:00
powerpc updates for 4.10
2016-12-16 09:26:42 -08:00
kthread: add __printf attributes
2016-12-12 18:55:06 -08:00
ktime: Get rid of ktime_equal()
2016-12-25 17:21:23 +01:00
Small release, the most interesting stuff is x86 nested virt improvements.
2016-12-13 15:47:02 -08:00
led: core: Fix blink_brightness setting race
2016-11-22 12:07:05 +01:00
acpi, nfit, libnvdimm: fix / harden ars_status output length handling
2016-12-06 16:08:10 -08:00
lightnvm: transform target get/set bad block
2016-11-29 12:12:51 -07:00
locking/lockdep: Provide a type check for lock_is_held
2016-11-30 14:32:25 +11:00
bus: mvebu-bus: Provide inline stub for mvebu_mbus_get_dram_win_info
2016-11-18 13:54:21 -05:00
timekeeping: Ignore the bogus sleep time if pm_trace is enabled
2016-11-29 18:02:58 +01:00
vfio-mdev: fix non-standard ioctl return val causing i386 build fail
2017-01-04 13:22:38 -07:00
net: phy: Fix typo for MDIO module boilerplate comment
2017-01-24 13:37:50 -05:00
mei: bus: enable non-blocking RX
2016-12-06 11:05:46 +01:00
mm, memcg: fix the active list aging for lowmem requests when memcg is enabled
2017-01-10 18:31:55 -08:00
mm: disable numa migration faults for dax vmas
2016-12-12 18:55:07 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-12-17 20:17:04 -08:00
dax: wrprotect pmd_t in dax_mapping_entry_mkclean
2017-01-10 18:31:54 -08:00
mm, memcg: fix the active list aging for lowmem requests when memcg is enabled
2017-01-10 18:31:55 -08:00
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-18 11:12:53 -08:00
linux: drop __bitwise__ everywhere
2016-12-16 00:13:41 +02:00
s390/zcrypt: add multi domain support
2016-12-14 16:33:38 +01:00
module: remove trailing whitespace
2016-11-26 11:18:02 -08:00
Merge branch 'work.autofs' into for-linus
2016-12-16 16:34:52 -05:00
ipmr: improve hash scalability
2017-01-12 16:48:26 -05:00
net: ipv6: remove nowait arg to rt6_fill_node
2017-01-18 15:43:59 -05:00
net: Remove usage of net_device last_rx member
2017-01-18 17:22:49 -05:00
netfilter: decouple nf_hook_entry and nf_hook_ops
2016-12-06 21:42:16 +01:00
netfilter: ingress: translate 0 nf_hook_slow retval to -1
2016-12-06 21:48:21 +01:00
nfsd: add support for the umask attribute
2016-12-15 20:42:48 -05:00
NFS: Clean up nfs_attribute_timeout()
2016-12-19 17:29:44 -05:00
nfs: add support for the umask attribute
2016-12-09 23:47:10 -05:00
kernel/watchdog.c: move shared definitions to nmi.h
2016-12-14 16:04:08 -08:00
NTB bug fixes for removing an unnecessary call to ntb_peer_spad_read,
2016-12-24 11:23:24 -08:00
nvme-fabrics: Add FC transport LLDD api definitions
2016-12-06 10:17:56 +02:00
nvme-fabrics: Add FC transport FC-NVME definitions
2016-12-06 10:17:56 +02:00
Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block
2016-12-13 10:19:16 -08:00
of/fdt: mark hotpluggable memory
2016-12-12 18:55:07 -08:00
iommu: Make of_iommu_set/get_ops() DT agnostic
2016-11-29 15:57:43 +00:00
of_mdio: add helper to deregister fixed-link PHYs
2016-11-29 23:17:02 -05:00
mm: optimize PageWaiters bit use for unlock_page()
2016-12-29 11:03:15 -08:00
mm: add PageWaiters indicating tasks are waiting for a page bit
2016-12-25 11:54:48 -08:00
parser: add u64 number parser
2016-12-06 10:17:03 +02:00
PCI/ACPI: Extend pci_mcfg_lookup() to return ECAM config accessors
2016-12-06 13:45:48 -06:00
PCI: Add MCFG quirks for X-Gene host controller
2016-12-06 13:45:50 -06:00
device: Implement a bus agnostic dev_num_vf routine
2017-01-20 11:43:17 -05:00
pci-v4.10-changes
2016-12-15 12:46:48 -08:00
perf/x86/intel: Account interrupts for PEBS errors
2017-01-14 11:06:49 +01:00
phy: increase size of MII_BUS_ID_SIZE and bus_id
2017-01-19 11:46:20 -05:00
timekeeping: Ignore the bogus sleep time if pm_trace is enabled
2016-11-29 18:02:58 +01:00
Driver core patches for 4.10-rc1
2016-12-13 11:42:18 -08:00
PM / OPP: Allow platform specific custom set_opp() callbacks
2016-12-06 02:27:59 +01:00
Driver core patches for 4.10-rc1
2016-12-13 11:42:18 -08:00
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
x86/uaccess, sched/preempt: Verify access_ok() context
2016-12-06 10:32:40 +01:00
printk: add Kconfig option to set default console loglevel
2016-12-12 18:55:09 -08:00
xen: features and fixes for 4.10 rc0
2016-12-13 16:07:55 -08:00
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-12 19:56:15 -08:00
ptrace: Don't allow accessing an undumpable mm
2016-11-22 12:57:38 -06:00
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2016-12-19 08:23:53 -08:00
quota: constify struct path in quota_on
2016-12-05 19:03:06 -05:00
mm: workingset: fix use-after-free in shadow node shrinker
2017-01-07 18:22:40 -08:00
ratelimit: fix WARN_ON_RATELIMIT return value
2016-12-20 09:48:47 -08:00
Revert "remoteproc: Merge table_ptr and cached_table pointers"
2016-12-30 03:26:31 -08:00
tracing/rb: Convert to hotplug state machine
2016-12-02 00:52:34 +01:00
mm, rmap: handle anon_vma_prepare() common case inline
2016-12-12 18:55:08 -08:00
Input: synaptics-rmi4 - add support for F34 V7 bootloader
2016-12-12 11:26:47 -08:00
signal: protect SIGNAL_UNKILLABLE from unintentional clearing.
2017-01-10 18:31:55 -08:00
sctp: add support for generating stream reconf ssn reset request chunk
2017-01-18 14:55:09 -05:00
linux: drop __bitwise__ everywhere
2016-12-16 00:13:41 +02:00
signals: avoid unnecessary taking of sighand->siglock
2016-12-14 16:04:07 -08:00
siphash: implement HalfSipHash1-3 for hash tables
2017-01-09 13:58:57 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-01-11 14:43:39 -05:00
mm, slab: make sure that KMALLOC_MAX_SIZE will fit into MAX_ORDER
2017-01-10 18:31:54 -08:00
smc: establish new socket family
2017-01-09 16:07:38 -05:00
stm: Mark the functions of writing STM with notrace
2016-11-22 17:48:04 -05:00
stmmac: move stmmac_clk, pclk, clk_ptp_ref and stmmac_rst to platform structure
2017-01-09 14:54:29 -05:00
PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag
2016-11-21 22:48:10 +01:00
mm: support anonymous stable page
2017-01-10 18:31:55 -08:00
swiotlb: Export swiotlb_max_segment to users
2017-01-06 13:00:01 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-01-17 15:19:37 -05:00
thermal: core: move trips attributes to tz->device.groups
2016-11-23 10:06:12 +08:00
ktime: Get rid of the union
2016-12-25 17:21:22 +01:00
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
timerfd: export defines to userspace
2017-01-10 18:31:55 -08:00
tracing: Add hook to function tracing for other subsystems to use
2016-11-22 17:40:00 -05:00
trace: add variant without spacing in trace_print_hex_seq
2017-01-25 13:17:47 -05:00
tracing: Have the reg function allow to fail
2016-12-09 09:13:30 -05:00
tracing: Have the reg function allow to fail
2016-12-09 09:13:30 -05:00
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
udp: add batching to udp_rmem_release()
2016-12-09 22:12:21 -05:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-12-16 10:24:44 -08:00
sparc64:Support User Probes for sparc
2016-12-11 18:01:51 -08:00
mm: join struct fault_env and vm_fault
2016-12-14 16:04:09 -08:00
vfio: support notifier chain in vfio_group
2016-12-01 10:40:05 -07:00
virtio: don't set VIRTIO_NET_HDR_F_DATA_VALID on xmit
2017-01-17 14:07:31 -05:00
mm: add vfree_atomic()
2016-12-12 18:55:08 -08:00
VME: Remove shutdown entry from vme_driver
2016-12-06 11:03:22 +01:00
ktime: Get rid of the union
2016-12-25 17:21:22 +01:00
Merge branch 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2016-12-13 12:59:57 -08:00
mm: add PageWaiters indicating tasks are waiting for a page bit
2016-12-25 11:54:48 -08:00
locking/ww_mutex: Use relaxed atomics
2016-12-06 10:42:03 +01:00
