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Steven Rostedt (Google) d23569979c tracing: Allow creating instances with specified system events 
A trace instance may only need to enable specific events. As the eventfs
directory of an instance currently creates all events which adds overhead,
allow internal instances to be created with just the events in systems
that they care about. This currently only deals with systems and not
individual events, but this should bring down the overhead of creating
instances for specific use cases quite bit.

The trace_array_get_by_name() now has another parameter "systems". This
parameter is a const string pointer of a comma/space separated list of
event systems that should be created by the trace_array. (Note if the
trace_array already exists, this parameter is ignored).

The list of systems is saved and if a module is loaded, its events will
not be added unless the system for those events also match the systems
string.

Link: https://lore.kernel.org/linux-trace-kernel/20231213093701.03fddec0@gandalf.local.home

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Arun Easi   <aeasi@marvell.com>
Cc: Daniel Wagner <dwagner@suse.de>
Tested-by: Dmytro Maluka <dmaluka@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
History 2023-12-18 23:14:16 -05:00
..
accel accel/ivpu: avoid build failure with CONFIG_PM=n 2023-11-15 11:03:49 +01:00
accessibility accessibility: speakup: refactor deprecated strncpy 2023-10-05 13:34:05 +02:00
acpi RISC-V Patches for the 6.7 Merge Window, Part 1 2023-11-08 09:21:18 -08:00
amba amba: bus: balance firmware node reference counting 2023-10-17 13:37:35 -05:00
android Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
ata ata: pata_gayle: Convert to platform remove callback returning void 2023-11-08 09:00:49 +09:00
atm pci-v6.7-changes 2023-11-02 14:05:18 -10:00
auxdisplay auxdisplay: panel: Replace deprecated strncpy() with strtomem_pad() 2023-09-29 14:48:31 -07:00
base regmap: Fix for v6.7 2023-11-07 16:56:10 -08:00
bcma bcma: Add explicit of_device.h include 2023-04-14 15:32:56 +03:00
block nbd: fix uaf in nbd_open 2023-11-07 08:14:57 -07:00
bluetooth Bluetooth: btmtksdio: enable bluetooth wakeup in system suspend 2023-10-23 11:04:51 -07:00
bus SoC driver updates for 6.7 2023-11-01 14:46:51 -10:00
cache riscv: RISCV_NONSTANDARD_CACHE_OPS shouldn't depend on RISCV_DMA_NONCOHERENT 2023-10-26 09:42:37 +02:00
cdrom cdrom: Remove now superfluous sentinel element from ctl_table array 2023-10-02 20:04:58 -06:00
cdx Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
char Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
clk SoC driver updates for 6.7 2023-11-01 14:46:51 -10:00
clocksource RISC-V Patches for the 6.7 Merge Window, Part 2 2023-11-10 09:23:17 -08:00
comedi comedi: add HAS_IOPORT dependencies again 2023-10-05 13:34:05 +02:00
connector Fix NULL pointer dereference in cn_filter() 2023-10-24 10:53:45 +02:00
counter First set of Counter fixes for 6.6 2023-10-02 13:13:15 +02:00
cpufreq Merge branch 'pm-cpufreq' 2023-11-07 20:45:12 +01:00
cpuidle cpuidle: dt: Replace deprecated strncpy() with strscpy() 2023-09-29 14:48:31 -07:00
crypto crypto: talitos - stop using crypto_ahash::init 2023-10-27 18:04:29 +08:00
cxl cxl/pci: Change CXL AER support check to use native AER 2023-11-02 14:09:01 -07:00
dax Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
dca Mainly singleton patches all over the place. Series of note are: 2023-04-27 19:57:00 -07:00
devfreq PM / devfreq: rockchip-dfi: add support for RK3588 2023-10-19 21:21:16 +09:00
dio drivers: dio: fix possible memory leak in dio_init() 2022-11-09 15:12:37 +01:00
dma dmaengine updates for v6.7 2023-11-03 18:56:51 -10:00
dma-buf As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
dpll dpll: netlink/core: change pin frequency set behavior 2023-10-15 16:08:25 +01:00
edac hardening updates for v6.7-rc1 2023-10-30 19:09:55 -10:00
eisa EISA: Replace all non-returning strlcpy with strscpy 2023-07-27 10:04:42 -07:00
extcon extcon: realtek: add the error handler for nvmem_cell_read 2023-10-17 17:38:57 +09:00
firewire firewire: Annotate struct fw_node with __counted_by 2023-11-05 21:15:17 +09:00
firmware vhost,virtio,vdpa,firmware: bugfixes 2023-11-16 07:39:37 -05:00
fpga Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
fsi fsi: i2cr: Switch to use struct i2c_driver's .probe() 2023-08-22 15:51:33 +02:00
gnss driver core: class: remove module * from class_create() 2023-03-17 15:16:33 +01:00
gpio pwm: Changes for v6.7-rc1 2023-11-09 13:47:52 -08:00
gpu drm-fixes for -rc2 2023-11-17 13:58:26 -08:00
greybus greybus: Add BeaglePlay Linux Driver 2023-10-27 13:19:04 +02:00
hid Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
hsi hsi: omap_ssi: Explicitly include correct DT includes 2023-07-31 23:17:57 +02:00
hte hte: Changes for v6.7-rc1 2023-10-31 18:32:51 -10:00
hv TTY/Serial changes for 6.7-rc1 2023-11-03 15:44:25 -10:00
hwmon hwmon updates for v6.7-rc1 2023-10-31 17:44:17 -10:00
hwspinlock hwspinlock: qcom: add missing regmap config for SFPB MMIO implementation 2023-07-17 11:49:18 -07:00
hwtracing coresight: tmc-etr: Disable warnings for allocation failures 2023-09-20 10:46:30 +01:00
i2c i2c: ocores: Move system PM hooks to the NOIRQ phase 2023-11-13 12:43:42 -05:00
i3c I3C for 6.7 2023-11-04 16:25:36 -10:00
idle intel_idle: Add ibrs_off module parameter to force-disable IBRS 2023-10-07 11:33:28 +02:00
iio Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
infiniband RDMA for v6.7 2023-11-02 15:20:30 -10:00
input Input updates for 6.7 merge window: 2023-11-09 14:18:42 -08:00
interconnect Merge branch 'icc-platform-remove' into icc-next 2023-10-19 00:50:03 +03:00
iommu IOMMU Updates for Linux v6.7 2023-11-09 13:37:28 -08:00
ipack tty: make tty_operations::write()'s count size_t 2023-08-11 21:12:46 +02:00
irqchip - Flush the translation service tables to prevent unpredictable behavior 2023-11-19 13:49:32 -08:00
isdn hardening updates for v6.7-rc1 2023-10-30 19:09:55 -10:00
leds pwm: Changes for v6.7-rc1 2023-11-09 13:47:52 -08:00
macintosh powerpc updates for 6.7 2023-11-03 10:07:39 -10:00
mailbox Moving repo 2023-11-05 18:45:32 -08:00
mcb mcb: fix error handling for different scenarios when parsing 2023-10-21 23:04:02 +02:00
md dm-crypt: start allocating with MAX_ORDER 2023-11-17 14:41:15 -05:00
media media updates for v6.7-rc1 2023-11-06 15:06:06 -08:00
memory IOMMU Updates for Linux v6.7 2023-11-09 13:37:28 -08:00
memstick memstick: jmb38x_ms: Annotate struct jmb38x_ms with __counted_by 2023-09-27 12:13:18 +02:00
message scsi: message: fusion: Initialize return value in mptfc_bus_reset() 2023-10-24 22:36:39 -04:00
mfd - Core Frameworks 2023-11-02 14:40:51 -10:00
misc RISC-V Patches for the 6.7 Merge Window, Part 1 2023-11-08 09:21:18 -08:00
mmc mmc: sdhci-pci-gli: GL9750: Mask the replay timer timeout of AER 2023-11-07 13:08:12 +01:00
most staging: most: Replace all non-returning strlcpy with strscpy 2023-06-01 07:07:37 -07:00
mtd - removed AR7 platform support 2023-11-10 09:19:46 -08:00
mux mux: Explicitly include correct DT includes 2023-08-28 13:36:24 -05:00
net Including fixes from BPF and netfilter. 2023-11-16 07:51:26 -05:00
nfc NFC: nxp: add NXP1002 2023-08-30 18:32:24 -07:00
ntb ntb: Check tx descriptors outstanding instead of head/tail for tx queue 2023-08-22 12:38:19 -04:00
nubus nubus: Don't list slot resources by default 2023-05-22 13:51:56 +02:00
nvdimm libnvdimm: remove kernel-doc warnings: 2023-10-18 09:48:05 -07:00
nvme nvme: keyring: fix conditional compilation 2023-11-08 08:07:08 -08:00
nvmem Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
of RISC-V Patches for the 6.7 Merge Window, Part 2 2023-11-10 09:23:17 -08:00
opp OPP: No need to defer probe from _opp_attach_genpd() 2023-10-17 11:11:28 +05:30
parisc parisc/power: Fix power soft-off when running on qemu 2023-11-18 18:59:30 +01:00
parport parport: gsc: mark init function static 2023-11-10 08:41:23 +01:00
pci cxl for v6.7 2023-11-04 16:20:36 -10:00
pcmcia PCMCIA odd cleanups and fixes for v6.7-rc1 2023-11-07 16:40:42 -08:00
peci Update peci-next for v6.6-rc1 2023-08-08 10:53:30 +02:00
perf arm64 fixes: 2023-11-10 12:22:14 -08:00
phy phy-for-6.6 2023-11-03 19:06:12 -10:00
pinctrl pinctrl: nuvoton: npcm8xx: drop wrappers around pinctrl_gpio_request/free() 2023-11-04 10:23:23 +01:00
platform Major microcode loader restructuring, cleanup and improvements by Thomas 2023-11-04 08:46:37 -10:00
pmdomain SoC driver updates for 6.7 2023-11-01 14:46:51 -10:00
pnp PNP: replace deprecated strncpy() with memcpy() 2023-10-20 19:50:40 +02:00
power USB/Thunderbolt changes for 6.7-rc1 2023-11-03 16:00:42 -10:00
powercap powercap: intel_rapl: Downgrade BIOS locked limits pr_warn() to pr_debug() 2023-10-24 22:07:07 +02:00
pps driver core: class: remove module * from class_create() 2023-03-17 15:16:33 +01:00
ps3 driver/ps3: Include <video/cmdline.h> for mode parsing 2023-02-20 14:56:51 +01:00
ptp ptp: annotate data-race around q->head and q->tail 2023-11-13 20:51:37 -08:00
pwm pwm: samsung: Fix a bit test in pwm_samsung_resume() 2023-11-10 09:20:48 +01:00
rapidio rapidio: make all 'class' structures const 2023-10-05 13:51:35 +02:00
ras ras/debugfs: Fix error checking for debugfs_create_dir() 2023-05-16 21:12:23 +02:00
regulator regulator: Merge up pending fix 2023-10-30 13:14:27 +00:00
remoteproc remoteproc: st: Fix sometimes uninitialized ret in st_rproc_probe() 2023-10-16 11:24:34 -06:00
reset reset: Annotate struct reset_control_array with __counted_by 2023-10-24 14:10:04 -07:00
rpmsg rpmsg: virtio: Replace deprecated strncpy with strscpy/_pad 2023-10-23 13:11:07 -06:00
rtc RTC for 6.7 2023-11-05 18:49:40 -08:00
s390 Including fixes from netfilter and bpf. 2023-11-09 17:09:35 -08:00
sbus sbus: Explicitly include correct DT includes 2023-08-28 13:36:24 -05:00
scsi tracing: Allow creating instances with specified system events 2023-12-18 23:14:16 -05:00
sh sh: Remove superhyway bus support 2023-10-25 16:50:11 +02:00
siox siox: fix possible memory leak in siox_device_add() 2022-11-09 15:40:14 +01:00
slimbus driver core: make struct bus_type.uevent() take a const * 2023-01-27 13:45:52 +01:00
soc powerpc updates for 6.7 2023-11-03 10:07:39 -10:00
soundwire soundwire updates for 6.7 2023-11-03 19:10:41 -10:00
spi spi: Fixes for v6.7 2023-11-10 11:44:38 -08:00
spmi spmi: rename spmi device lookup helper 2023-11-01 10:02:18 +00:00
ssb ssb: relax SSB_EMBEDDED dependencies 2023-10-19 10:26:26 +03:00
staging pwm: Changes for v6.7-rc1 2023-11-09 13:47:52 -08:00
target SCSI misc on 20231102 2023-11-02 15:13:50 -10:00
tc The main MIPS changes for 5.6: 2020-01-31 11:28:31 -08:00
tee tee: make tee_class constant 2023-10-18 10:01:34 +02:00
thermal Thermal control updates for 6.7-rc1 2023-10-31 15:28:37 -10:00
thunderbolt USB/Thunderbolt changes for 6.7-rc1 2023-11-03 16:00:42 -10:00
tty - removed AR7 platform support 2023-11-10 09:19:46 -08:00
ufs Merge branch '6.7/scsi-staging' into 6.7/scsi-fixes 2023-11-14 11:40:40 -05:00
uio uio: pruss: fix missing iounmap() in pruss_probe() 2023-08-22 13:41:55 +02:00
usb USB/Thunderbolt changes for 6.7-rc1 2023-11-03 16:00:42 -10:00
vdpa vdpa_sim_blk: allocate the buffer zeroed 2023-11-01 09:31:16 -04:00
vfio Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
vhost vhost,virtio,vdpa,firmware: bugfixes 2023-11-16 07:39:37 -05:00
video fbdev: fsl-diu-fb: mark wr_reg_wa() static 2023-11-10 09:16:02 +01:00
virt configfs-tsm for v6.7 2023-11-04 15:58:13 -10:00
virtio vhost,virtio,vdpa,firmware: bugfixes 2023-11-16 07:39:37 -05:00
w1 nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
watchdog - removed AR7 platform support 2023-11-10 09:19:46 -08:00
xen xen/events: remove some info_for_irq() calls in pirq handling 2023-11-15 09:51:51 +01:00
zorro zorro: Include zorro.h in names.c 2023-08-21 13:27:44 +02:00
Kconfig - removed AR7 platform support 2023-11-10 09:19:46 -08:00
Makefile - removed AR7 platform support 2023-11-10 09:19:46 -08:00