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Eric Dumazet c1269d3d12 tcp: add tcp_rcvbuf_grow() tracepoint 
Provide a new tracepoint to better understand
tcp_rcv_space_adjust() (currently broken) behavior.

Call it only when tcp_rcv_space_adjust() has a chance
to make a change.

I chose to leave trace_tcp_rcv_space_adjust() as is,
because commit 6163849d28 ("net: introduce a new tracepoint
for tcp_rcv_space_adjust") intent was to get it called after
each data delivery to user space.

Tested:

Pair of hosts in the same rack. Ideally, sk->sk_rcvbuf should be kept small.

echo "4096 131072 33554432" >/proc/sys/net/ipv4/tcp_rmem
./netserver
perf record -C10 -e tcp:tcp_rcvbuf_grow sleep 30

<launch from client : netperf -H server -T,10>

Trace for a TS enabled TCP flow (with standard ms granularity)

perf script // We can see that sk_rcvbuf is growing very fast to tcp_mem[2]
  260.500397: tcp:tcp_rcvbuf_grow: time=291 rtt_us=274 copied=110592 inq=0 space=41080 ooo=0 scaling_ratio=230 rcvbuf=131072 ...
  260.501333: tcp:tcp_rcvbuf_grow: time=555 rtt_us=364 copied=333824 inq=0 space=110592 ooo=0 scaling_ratio=230 rcvbuf=1399144 ...
  260.501664: tcp:tcp_rcvbuf_grow: time=331 rtt_us=330 copied=798720 inq=0 space=333824 ooo=0 scaling_ratio=230 rcvbuf=4110551 ...
  260.502003: tcp:tcp_rcvbuf_grow: time=340 rtt_us=330 copied=1040384 inq=49152 space=798720 ooo=0 scaling_ratio=230 rcvbuf=7006410 ...
  260.502483: tcp:tcp_rcvbuf_grow: time=479 rtt_us=330 copied=2658304 inq=49152 space=1040384 ooo=0 scaling_ratio=230 rcvbuf=7006410 ...
  260.502899: tcp:tcp_rcvbuf_grow: time=416 rtt_us=413 copied=4026368 inq=147456 space=2658304 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.504233: tcp:tcp_rcvbuf_grow: time=493 rtt_us=487 copied=4800512 inq=196608 space=4026368 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.504792: tcp:tcp_rcvbuf_grow: time=559 rtt_us=551 copied=5672960 inq=49152 space=4800512 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.506614: tcp:tcp_rcvbuf_grow: time=610 rtt_us=607 copied=6688768 inq=180224 space=5672960 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.507280: tcp:tcp_rcvbuf_grow: time=666 rtt_us=656 copied=6868992 inq=49152 space=6688768 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.507979: tcp:tcp_rcvbuf_grow: time=699 rtt_us=699 copied=7000064 inq=0 space=6868992 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.508681: tcp:tcp_rcvbuf_grow: time=703 rtt_us=699 copied=7208960 inq=0 space=7000064 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.509426: tcp:tcp_rcvbuf_grow: time=744 rtt_us=737 copied=7569408 inq=0 space=7208960 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.510213: tcp:tcp_rcvbuf_grow: time=787 rtt_us=770 copied=7880704 inq=49152 space=7569408 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.511013: tcp:tcp_rcvbuf_grow: time=801 rtt_us=798 copied=8339456 inq=0 space=7880704 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.511860: tcp:tcp_rcvbuf_grow: time=847 rtt_us=824 copied=8601600 inq=49152 space=8339456 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.512710: tcp:tcp_rcvbuf_grow: time=850 rtt_us=846 copied=8814592 inq=65536 space=8601600 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.514428: tcp:tcp_rcvbuf_grow: time=871 rtt_us=865 copied=8855552 inq=49152 space=8814592 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.515333: tcp:tcp_rcvbuf_grow: time=905 rtt_us=882 copied=9228288 inq=49152 space=8855552 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.516237: tcp:tcp_rcvbuf_grow: time=905 rtt_us=896 copied=9371648 inq=49152 space=9228288 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.517149: tcp:tcp_rcvbuf_grow: time=911 rtt_us=909 copied=9543680 inq=49152 space=9371648 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.518070: tcp:tcp_rcvbuf_grow: time=921 rtt_us=921 copied=9793536 inq=0 space=9543680 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.520895: tcp:tcp_rcvbuf_grow: time=948 rtt_us=947 copied=10203136 inq=114688 space=9793536 ooo=0 scaling_ratio=230 rcvbuf=24622616 ...
  260.521853: tcp:tcp_rcvbuf_grow: time=959 rtt_us=954 copied=10293248 inq=57344 space=10203136 ooo=0 scaling_ratio=230 rcvbuf=24691992 ...
  260.522818: tcp:tcp_rcvbuf_grow: time=964 rtt_us=959 copied=10330112 inq=0 space=10293248 ooo=0 scaling_ratio=230 rcvbuf=24691992 ...
  260.524760: tcp:tcp_rcvbuf_grow: time=979 rtt_us=969 copied=10633216 inq=49152 space=10330112 ooo=0 scaling_ratio=230 rcvbuf=24691992 ...
  260.526709: tcp:tcp_rcvbuf_grow: time=975 rtt_us=973 copied=12013568 inq=163840 space=10633216 ooo=0 scaling_ratio=230 rcvbuf=25136755 ...
  260.527694: tcp:tcp_rcvbuf_grow: time=985 rtt_us=976 copied=12025856 inq=32768 space=12013568 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  260.530655: tcp:tcp_rcvbuf_grow: time=991 rtt_us=986 copied=12050432 inq=98304 space=12025856 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  260.533626: tcp:tcp_rcvbuf_grow: time=993 rtt_us=989 copied=12124160 inq=0 space=12050432 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  260.538606: tcp:tcp_rcvbuf_grow: time=1000 rtt_us=994 copied=12222464 inq=49152 space=12124160 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  260.545605: tcp:tcp_rcvbuf_grow: time=1005 rtt_us=998 copied=12263424 inq=81920 space=12222464 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  260.553626: tcp:tcp_rcvbuf_grow: time=1005 rtt_us=999 copied=12320768 inq=12288 space=12263424 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  260.589749: tcp:tcp_rcvbuf_grow: time=1001 rtt_us=1000 copied=12398592 inq=16384 space=12320768 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  260.806577: tcp:tcp_rcvbuf_grow: time=1010 rtt_us=1000 copied=12402688 inq=32768 space=12398592 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  261.002386: tcp:tcp_rcvbuf_grow: time=1002 rtt_us=1000 copied=12419072 inq=98304 space=12402688 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  261.803432: tcp:tcp_rcvbuf_grow: time=1013 rtt_us=1000 copied=12468224 inq=49152 space=12419072 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  261.829533: tcp:tcp_rcvbuf_grow: time=1004 rtt_us=1000 copied=12615680 inq=0 space=12468224 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...
  265.505435: tcp:tcp_rcvbuf_grow: time=1007 rtt_us=1000 copied=12632064 inq=32768 space=12615680 ooo=0 scaling_ratio=230 rcvbuf=33554432 ...

We also see rtt_us going gradually to 1000 usec, causing massive overshoot.

Trace for a usec TS enabled TCP flow (us granularity)

perf script // We can see that sk_rcvbuf is growing to a smaller value,
               thanks to tight rtt_us values.
 1509.273955: tcp:tcp_rcvbuf_grow: time=396 rtt_us=377 copied=110592 inq=0 space=41080 ooo=0 scaling_ratio=230 rcvbuf=131072 ...
 1509.274366: tcp:tcp_rcvbuf_grow: time=412 rtt_us=365 copied=129024 inq=0 space=110592 ooo=0 scaling_ratio=230 rcvbuf=1399144 ...
 1509.274738: tcp:tcp_rcvbuf_grow: time=372 rtt_us=355 copied=194560 inq=0 space=129024 ooo=0 scaling_ratio=230 rcvbuf=1399144 ...
 1509.275020: tcp:tcp_rcvbuf_grow: time=282 rtt_us=257 copied=401408 inq=0 space=194560 ooo=0 scaling_ratio=230 rcvbuf=1399144 ...
 1509.275190: tcp:tcp_rcvbuf_grow: time=170 rtt_us=144 copied=741376 inq=229376 space=401408 ooo=0 scaling_ratio=230 rcvbuf=3021625 ...
 1509.275300: tcp:tcp_rcvbuf_grow: time=110 rtt_us=110 copied=1146880 inq=65536 space=741376 ooo=0 scaling_ratio=230 rcvbuf=4642390 ...
 1509.275449: tcp:tcp_rcvbuf_grow: time=149 rtt_us=106 copied=1310720 inq=737280 space=1146880 ooo=0 scaling_ratio=230 rcvbuf=5498637 ...
 1509.275560: tcp:tcp_rcvbuf_grow: time=111 rtt_us=107 copied=1388544 inq=430080 space=1310720 ooo=0 scaling_ratio=230 rcvbuf=5498637 ...
 1509.275674: tcp:tcp_rcvbuf_grow: time=114 rtt_us=113 copied=1495040 inq=421888 space=1388544 ooo=0 scaling_ratio=230 rcvbuf=5498637 ...
 1509.275800: tcp:tcp_rcvbuf_grow: time=126 rtt_us=126 copied=1572864 inq=77824 space=1495040 ooo=0 scaling_ratio=230 rcvbuf=5498637 ...
 1509.275968: tcp:tcp_rcvbuf_grow: time=168 rtt_us=161 copied=1863680 inq=172032 space=1572864 ooo=0 scaling_ratio=230 rcvbuf=5498637 ...
 1509.276129: tcp:tcp_rcvbuf_grow: time=161 rtt_us=161 copied=1941504 inq=204800 space=1863680 ooo=0 scaling_ratio=230 rcvbuf=5782790 ...
 1509.276288: tcp:tcp_rcvbuf_grow: time=159 rtt_us=158 copied=1990656 inq=131072 space=1941504 ooo=0 scaling_ratio=230 rcvbuf=5782790 ...
 1509.276900: tcp:tcp_rcvbuf_grow: time=228 rtt_us=226 copied=2883584 inq=266240 space=1990656 ooo=0 scaling_ratio=230 rcvbuf=5782790 ...
 1509.277819: tcp:tcp_rcvbuf_grow: time=242 rtt_us=236 copied=3022848 inq=0 space=2883584 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.278072: tcp:tcp_rcvbuf_grow: time=253 rtt_us=247 copied=3055616 inq=49152 space=3022848 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.279560: tcp:tcp_rcvbuf_grow: time=268 rtt_us=264 copied=3133440 inq=180224 space=3055616 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.279833: tcp:tcp_rcvbuf_grow: time=274 rtt_us=270 copied=3424256 inq=0 space=3133440 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.282187: tcp:tcp_rcvbuf_grow: time=277 rtt_us=273 copied=3465216 inq=180224 space=3424256 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.284685: tcp:tcp_rcvbuf_grow: time=292 rtt_us=292 copied=3481600 inq=147456 space=3465216 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.284983: tcp:tcp_rcvbuf_grow: time=297 rtt_us=295 copied=3702784 inq=45056 space=3481600 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.285596: tcp:tcp_rcvbuf_grow: time=311 rtt_us=310 copied=3723264 inq=40960 space=3702784 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.285909: tcp:tcp_rcvbuf_grow: time=313 rtt_us=304 copied=3846144 inq=196608 space=3723264 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.291654: tcp:tcp_rcvbuf_grow: time=322 rtt_us=311 copied=3960832 inq=49152 space=3846144 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.291986: tcp:tcp_rcvbuf_grow: time=333 rtt_us=330 copied=4075520 inq=360448 space=3960832 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.292319: tcp:tcp_rcvbuf_grow: time=332 rtt_us=332 copied=4079616 inq=65536 space=4075520 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.292666: tcp:tcp_rcvbuf_grow: time=348 rtt_us=347 copied=4177920 inq=212992 space=4079616 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.293015: tcp:tcp_rcvbuf_grow: time=349 rtt_us=345 copied=4276224 inq=262144 space=4177920 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.293371: tcp:tcp_rcvbuf_grow: time=356 rtt_us=346 copied=4415488 inq=49152 space=4276224 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...
 1509.515798: tcp:tcp_rcvbuf_grow: time=424 rtt_us=411 copied=4833280 inq=81920 space=4415488 ooo=0 scaling_ratio=230 rcvbuf=12316197 ...

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Wei Wang <weiwan@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Link: https://patch.msgid.link/20250513193919.1089692-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 		2025-05-15 11:30:08 -07:00
..
9p.h 9p: prevent read overrun in protocol dump tracepoint 2023-12-05 21:18:44 +09:00
afs.h rxrpc: Display security params in the afs_cb_call tracepoint 2025-04-14 17:36:42 -07:00
alarmtimer.h
…
amdxdna.h accel/amdxdna: Add command execution 2024-11-22 11:43:27 -07:00
asoc.h ALSA: trace: use snd_pcm_direction_name() 2024-08-01 12:50:03 +02:00
avc.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
bcache.h
…
block.h block: remove the ioprio field from struct request 2024-11-12 14:42:02 -07:00
bpf_test_run.h bpf: add bpf_modify_return_test_tp() kfunc triggering tracepoint 2024-03-28 18:31:40 -07:00
bridge.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
btrfs.h btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref 2025-05-02 13:19:56 +02:00
cachefiles.h cachefiles: Add auxiliary data trace 2024-12-20 22:34:05 +01:00
capability.h security: add trace event for cap_capable 2024-12-04 20:59:21 -06:00
cgroup.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
clk.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
cma.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
compaction.h mm: compaction: update the cc->nr_migratepages when allocating or freeing the freepages 2024-02-22 10:24:50 -08:00
context_tracking.h
…
cpuhp.h
…
csd.h smp: Change function signatures to use call_single_data_t 2023-09-13 14:59:24 +02:00
damon.h mm/damon: fix order of arguments in damos_before_apply tracepoint 2024-12-05 19:54:47 -08:00
devfreq.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
devlink.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
dlm.h dlm: remove lkb from callback tracepoints 2024-04-01 13:31:12 -05:00
dma.h dma-mapping: trace more error paths 2024-10-29 08:54:06 +01:00
dma_fence.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
erofs.h erofs: implement 48-bit block addressing for unencoded inodes 2025-03-17 01:25:26 +08:00
error_report.h
…
ext4.h ext4: remove tracing for FALLOC_FL_NO_HIDE_STALE 2024-08-28 16:53:57 +02:00
f2fs.h f2fs: Remove calls to folio_file_mapping() 2024-12-16 16:12:26 +00:00
fib.h net: Replace strlcpy with strscpy 2023-07-04 19:40:16 +01:00
fib6.h tracing: ipv6: Add flow label to fib6_table_lookup tracepoint 2024-12-19 16:02:22 +01:00
filelock.h filelock: split leases out of struct file_lock 2024-02-05 13:11:44 +01:00
filemap.h filemap: add trace events for get_pages, map_pages, and fault 2024-09-01 20:26:10 -07:00
firewire.h firewire: core: rename cause flag of tracepoints event 2024-09-12 22:30:38 +09:00
firewire_ohci.h firewire: ohci: add tracepoints event for data of Self-ID DMA 2024-07-04 09:07:14 +09:00
fs_dax.h dax: use huge_zero_folio 2024-04-25 20:56:20 -07:00
fscache.h cachefiles: fix slab-use-after-free in fscache_withdraw_volume() 2024-07-03 10:36:14 +02:00
fsi.h fsi: core: Add trace events for scan and unregister 2023-08-09 15:43:28 +09:30
fsi_master_aspeed.h
…
fsi_master_ast_cf.h
…
fsi_master_gpio.h
…
fsi_master_i2cr.h fsi: Add IBM I2C Responder virtual FSI master 2023-08-11 13:32:14 +09:30
gpio.h
…
gpu_mem.h
…
habanalabs.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
handshake.h net/handshake: Trace events for TLS Alert helpers 2023-07-28 14:07:59 -07:00
host1x.h
…
huge_memory.h mm: khugepaged: fix the arguments order in khugepaged_collapse_file trace point 2024-10-17 00:28:09 -07:00
hugetlbfs.h hugetlb: fix NULL pointer dereference in trace_hugetlbfs_alloc_inode 2025-01-12 19:03:36 -08:00
hw_pressure.h sched/cpufreq: Rename arch_update_thermal_pressure() => arch_update_hw_pressure() 2024-04-24 12:08:01 +02:00
hwmon.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
i2c.h
…
i2c_slave.h
…
ib_mad.h IB/mad: Don't call to function that might sleep while in atomic context 2022-11-10 10:57:15 +02:00
ib_umad.h
…
icmp.h net/ipv4: add tracepoint for icmp_send 2024-05-08 10:39:26 +01:00
initcall.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
intel-sst.h
…
intel_ifs.h trace: platform/x86/intel/ifs: Add SBAF trace support 2024-08-12 16:36:11 +02:00
intel_ish.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
io_uring.h io_uring: clean up cqe trace points 2024-10-29 13:43:27 -06:00
iocost.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
iommu.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
ipi.h trace: Add trace_ipi_send_cpu() 2023-03-24 11:01:29 +01:00
irq.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
irq_matrix.h
…
iscsi.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
jbd2.h jbd2: remove journal_clean_one_cp_list() 2023-07-10 23:09:21 -04:00
kmem.h mm/page_alloc: add trace event for totalreserve_pages calculation 2025-03-17 22:07:03 -07:00
ksm.h mm/ksm: add tracepoint for ksm advisor 2023-12-29 11:58:27 -08:00
kvm.h LoongArch: KVM: Add iocsr and mmio bus simulation in kernel 2024-11-13 16:18:26 +08:00
kyber.h kyber: Replace strlcpy with strscpy 2023-07-17 08:18:17 -06:00
libata.h ata: libata: add qc->flags in ata_qc_complete_template tracepoint 2022-06-17 16:30:03 +09:00
lock.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
maple_tree.h Maple Tree: add new data structure 2022-09-26 19:46:13 -07:00
mce.h x86/MCE/AMD: Add support for new MCA_SYND{1,2} registers 2024-10-31 10:36:07 +01:00
mctp.h
…
mdio.h trace: events: cleanup deprecated strncpy uses 2024-04-05 22:10:25 -07:00
memcg.h memcg: add flush tracepoint 2024-11-11 00:26:46 -08:00
migrate.h mm/migrate: add MR_DAMON to migrate_reason 2024-07-03 19:30:12 -07:00
mlxsw.h
…
mmap.h mm: mmap: remove newline at the end of the trace 2023-03-23 17:18:36 -07:00
mmap_lock.h mm: mmap_lock: optimize mmap_lock tracepoints 2025-01-13 22:40:34 -08:00
mmc.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
mmflags.h tracing: gfp: vsprintf: Do not print "none" when using %pGg printf format 2025-03-22 05:15:44 -04:00
module.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
mptcp.h mptcp: sched: check both directions for backup 2024-07-30 10:27:29 +02:00
napi.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
nbd.h nbd: Use NULL to represent a pointer 2024-05-14 07:22:35 -06:00
neigh.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
net.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
net_probe_common.h trace: adjust TP_STORE_ADDR_PORTS_SKB() parameters 2024-04-03 19:26:14 -07:00
netfs.h netfs: Fix a number of read-retry hangs 2025-02-13 16:00:38 +01:00
netlink.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
nilfs2.h nilfs2: use __field_struct() for a bitwise field 2024-05-11 15:51:43 -07:00
nmi.h
…
notifier.h notifiers: add tracepoints to the notifiers infrastructure 2023-04-08 13:45:38 -07:00
objagg.h
…
oom.h mm: improve code consistency with zonelist_* helper functions 2024-09-01 20:25:55 -07:00
osnoise.h trace/osnoise: Add trace events for samples 2025-02-26 19:44:30 -05:00
page_isolation.h
…
page_pool.h page_pool: devmem support 2024-09-11 20:44:31 -07:00
page_ref.h trace/events/page_ref: trace the raw page mapcount value 2024-05-05 17:53:31 -07:00
pagemap.h
…
percpu.h include/trace/events/percpu.h: cleanup for "percpu: improve percpu_alloc_percpu event trace" 2022-05-25 10:47:48 -07:00
power.h cpuidle: psci: Add trace for PSCI domain idle 2025-02-17 14:41:56 +01:00
power_cpu_migrate.h
…
preemptirq.h tracing: Remove definition of trace_*_rcuidle() 2024-10-08 21:17:39 -04:00
printk.h
…
pwc.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
pwm.h pwm: Add tracing for waveform callbacks 2024-09-28 15:13:56 +02:00
qdisc.h tracing/net_sched: NULL pointer dereference in perf_trace_qdisc_reset() 2024-06-27 11:06:30 +02:00
qla.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
qrtr.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
rcu.h RCU pull request for v6.15 2025-03-24 19:41:37 -07:00
rdma_core.h
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regulator.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
rpcgss.h SUNRPC: Fixup gss_status tracepoint error output 2024-07-18 10:49:15 -04:00
rpcrdma.h svcrdma: Handle device removal outside of the CM event handler 2024-09-20 19:31:03 -04:00
rpm.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
rseq.h tracing/rseq: Add mm_cid field to rseq_update 2022-12-27 12:52:15 +01:00
rtc.h
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rust_sample.h rust: samples: add tracepoint to Rust sample 2024-11-04 16:21:44 -05:00
rwmmio.h asm-generic/io: Add _RET_IP_ to MMIO trace for more accurate debug info 2022-11-21 22:02:10 +01:00
rxrpc.h rxrpc: Add more CHALLENGE/RESPONSE packet tracing 2025-04-14 17:36:42 -07:00
sched.h Latency tracing changes for v6.15: 2025-03-27 16:03:52 -07:00
sched_ext.h sched_ext: Add trace point to track sched_ext core events 2025-03-04 08:06:17 -10:00
scmi.h include: trace: Widen the tag buffer in trace_scmi_dump_msg 2024-03-26 11:17:40 +00:00
scsi.h scsi: usb: Rename the RESERVE and RELEASE constants 2025-02-12 22:20:55 -05:00
sctp.h
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signal.h
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siox.h
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skb.h net: add rx_sk to trace_kfree_skb 2024-06-19 12:44:22 +01:00
smbus.h
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sock.h net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
sof.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
sof_intel.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
spi.h spi: Fix spelling typos and acronyms capitalization 2023-07-11 14:14:32 +01:00
spmi.h spmi: trace: fix stack-out-of-bound access in SPMI tracing functions 2022-07-24 16:16:44 +02:00
sunrpc.h net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
sunvnet.h
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swiotlb.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
syscalls.h tracing: Declare system call tracepoints with TRACE_EVENT_SYSCALL 2024-10-09 17:05:54 -04:00
target.h scsi: usb: Rename the RESERVE and RELEASE constants 2025-02-12 22:20:55 -05:00
task.h tracing: Remove pid in task_rename tracing output 2024-12-22 20:28:11 -08:00
tcp.h tcp: add tcp_rcvbuf_grow() tracepoint 2025-05-15 11:30:08 -07:00
tegra_apb_dma.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
thp.h powerpc/book3s64/mm: enable transparent pud hugepage 2023-08-18 10:12:55 -07:00
timer.h tracing/timers: Rename the hrtimer_init event to hrtimer_setup 2025-04-05 10:30:17 +02:00
timer_migration.h timers/migration: Rename childmask by groupmask to make naming more obvious 2024-07-22 18:03:34 +02:00
timestamp.h fs: tracepoints around multigrain timestamp events 2024-10-10 10:20:52 +02:00
tlb.h
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udp.h trace: adjust TP_STORE_ADDR_PORTS_SKB() parameters 2024-04-03 19:26:14 -07:00
v4l2.h
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vb2.h
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vmalloc.h mm: vmalloc: add free_vmap_area_noflush trace event 2022-11-08 17:37:17 -08:00
vmscan.h vmscan: add a vmscan event for reclaim_pages 2024-11-06 20:11:13 -08:00
vsock_virtio_transport_common.h vsock/virtio: MSG_ZEROCOPY flag support 2023-09-21 12:34:00 +02:00
watchdog.h watchdog: Add tracing events for the most usual watchdog events 2022-10-12 09:47:02 +02:00
wbt.h blk-wbt: Replace strlcpy with strscpy 2023-07-17 08:18:17 -06:00
workqueue.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
writeback.h writeback: fix calculations in trace_balance_dirty_pages() for cgwb 2025-03-17 00:05:37 -07:00
xdp.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
xen.h x86/xen: move paravirt lazy code 2023-09-19 07:04:49 +02:00