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linux-stable/include/trace/events
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David Howells c078381856 rxrpc: Fix overproduction of wakeups to recvmsg() 
Fix three cases of overproduction of wakeups:

 (1) rxrpc_input_split_jumbo() conditionally notifies the app that there's
     data for recvmsg() to collect if it queues some data - and then its
     only caller, rxrpc_input_data(), goes and wakes up recvmsg() anyway.

     Fix the rxrpc_input_data() to only do the wakeup in failure cases.

 (2) If a DATA packet is received for a call by the I/O thread whilst
     recvmsg() is busy draining the call's rx queue in the app thread, the
     call will left on the recvmsg() queue for recvmsg() to pick up, even
     though there isn't any data on it.

     This can cause an unexpected recvmsg() with a 0 return and no MSG_EOR
     set after the reply has been posted to a service call.

     Fix this by discarding pending calls from the recvmsg() queue that
     don't need servicing yet.

 (3) Not-yet-completed calls get requeued after having data read from them,
     even if they have no data to read.

     Fix this by only requeuing them if they have data waiting on them; if
     they don't, the I/O thread will requeue them when data arrives or they
     fail.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/3386149.1676497685@warthog.procyon.org.uk
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 		2023-02-20 08:33:25 +01:00
..
9p.h 9p fid refcount: add a 9p_fid_ref tracepoint 2022-07-02 18:52:21 +09:00
afs.h afs: Fix access after dec in put functions 2022-08-02 18:21:29 +01:00
alarmtimer.h
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asoc.h
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avc.h
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bcache.h block: remove superfluous param in blk_fill_rwbs() 2021-02-22 06:37:41 -07:00
block.h block: introduce block_rq_error tracepoint 2022-02-11 10:00:16 -07:00
bpf_test_run.h
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bridge.h net: bridge: Add a tracepoint for MDB overflows 2023-02-06 08:48:25 +00:00
btrfs.h btrfs: fix trace event name typo for FLUSH_DELAYED_REFS 2022-12-15 19:17:00 +01:00
cachefiles.h fscache,cachefiles: add prepare_ondemand_read() callback 2022-12-07 10:56:29 +08:00
cgroup.h cgroup: Trace event cgroup id fields should be u64 2021-12-01 07:23:35 -10:00
clk.h clk: Add trace events for rate requests 2022-12-07 13:54:09 -08:00
cma.h mm, tracing: unify PFN format strings 2021-06-29 10:53:52 -07:00
compaction.h tracing: incorrect gfp_t conversion 2022-05-13 07:20:18 -07:00
context_tracking.h
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cpuhp.h
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cxl.h cxl/pci: Add some type-safety to the AER trace points 2022-12-06 14:37:52 -08:00
damon.h mm/damon: hide kernel pointer from tracepoint event 2022-01-15 16:30:33 +02:00
devfreq.h
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devlink.h devlink: Fix TP_STRUCT_entry in trace of devlink health report 2023-02-15 19:15:44 -08:00
dlm.h fs: dlm: add dst nodeid for msg tracing 2022-11-21 09:45:49 -06:00
dma_fence.h treewide: Add missing semicolons to __assign_str uses 2021-06-30 09:19:14 -04:00
erofs.h erofs: clean up erofs_iget() 2022-09-27 17:27:45 +08:00
error_report.h panic: use error_report_end tracepoint on warnings 2022-01-20 08:52:55 +02:00
ext4.h ext4: disable fast-commit of encrypted dir operations 2022-12-08 21:49:24 -05:00
f2fs.h f2fs: add block_age-based extent cache 2022-12-12 14:53:56 -08:00
fib.h tracing/ipv4/ipv6: Use static array for name field in fib*_lookup_table event 2022-07-15 13:35:59 -04:00
fib6.h tracing/ipv4/ipv6: Use static array for name field in fib*_lookup_table event 2022-07-15 13:35:59 -04:00
filelock.h
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filemap.h filemap: Convert tracing of page cache operations to folio 2022-01-04 13:15:33 -05:00
fs_dax.h
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fscache.h fscache: Fix oops due to race with cookie_lru and use_cookie 2022-12-07 11:49:18 -08:00
fsi.h fsi: Add trace events in initialization path 2022-02-21 19:38:54 +10:30
fsi_master_aspeed.h fsi: Add trace events in initialization path 2022-02-21 19:38:54 +10:30
fsi_master_ast_cf.h
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fsi_master_gpio.h
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gpio.h
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gpu_mem.h
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habanalabs.h habanalabs: trace DMA allocations 2022-09-18 13:29:53 +03:00
host1x.h
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huge_memory.h mm/khugepaged: add tracepoint to collapse_file() 2022-12-11 18:12:09 -08:00
hwmon.h
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i2c.h
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i2c_slave.h i2c: add tracepoints for I2C slave events 2022-03-20 00:11:05 +01:00
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
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initcall.h
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intel-sst.h
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intel_ifs.h trace: platform/x86/intel/ifs: Add trace point to track Intel IFS operations 2022-05-12 15:35:29 +02:00
intel_ish.h
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io_uring.h io_uring: trace local task work run 2022-09-21 10:30:42 -06:00
iocost.h blk-iocost: Trace vtime_base_rate instead of vtime_rate 2022-12-01 07:44:12 -07:00
iommu.h iommu: Log iova range in map/unmap trace events 2021-12-06 11:59:31 +01:00
ipi.h
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irq.h
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irq_matrix.h
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iscsi.h scsi: iscsi: tracing: Use the new __vstring() helper 2022-07-19 11:20:25 -04:00
jbd2.h jbd2: use the correct print format 2022-12-08 21:49:12 -05:00
kmem.h mm: convert mm's rss stats into percpu_counter 2022-11-30 15:58:40 -08:00
kvm.h KVM: x86/mmu: rename trace function name for asynchronous page fault 2022-08-10 15:08:26 -04:00
kyber.h kyber: avoid q->disk dereferences in trace points 2021-10-15 21:02:57 -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 locking/mutex: Make contention tracepoints more consistent wrt adaptive spinning 2022-04-05 10:24:36 +02:00
maple_tree.h Maple Tree: add new data structure 2022-09-26 19:46:13 -07:00
mce.h
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mctp.h mctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control 2022-02-09 12:00:11 +00:00
mdio.h
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migrate.h mm/migration: add trace events for base page and HugeTLB migrations 2022-03-24 19:06:45 -07:00
mlxsw.h
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mmap.h mm: start tracking VMAs with maple tree 2022-09-26 19:46:14 -07:00
mmap_lock.h mm: mmap_lock: use DECLARE_EVENT_CLASS and DEFINE_EVENT_FN 2021-11-06 13:30:36 -07:00
mmc.h
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mmflags.h mm: Add PG_arch_3 page flag 2022-11-29 09:26:07 +00:00
module.h
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mptcp.h mptcp: dump infinite_map field in mptcp_dump_mpext 2022-04-23 11:51:05 +01:00
napi.h
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nbd.h
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neigh.h neighbor: tracing: Have neigh_create event use __string() 2022-07-15 13:35:59 -04:00
net.h net: Print hashed skb addresses for all net and qdisc events 2022-06-27 11:57:06 +01:00
net_probe_common.h
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netfs.h netfs: Add a function to consolidate beginning a read 2022-03-18 09:29:05 +00:00
netlink.h netlink: add tracepoint at NL_SET_ERR_MSG 2021-02-04 18:05:59 -08:00
nilfs2.h fs/nilfs2: Use the enum req_op and blk_opf_t types 2022-07-14 12:14:33 -06:00
nmi.h
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objagg.h
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oom.h
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osnoise.h tracing: Fix spelling in osnoise tracer "interferences" -> "interference" 2021-06-28 14:12:27 -04:00
page_isolation.h
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page_pool.h mm, tracing: unify PFN format strings 2021-06-29 10:53:52 -07:00
page_ref.h mm: introduce PAGEFLAGS_MASK to replace ((1UL << NR_PAGEFLAGS) - 1) 2021-09-08 11:50:24 -07:00
pagemap.h mm/lru: Convert __pagevec_lru_add_fn to take a folio 2021-10-18 07:49:40 -04:00
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: Add cpu_idle_miss trace event 2022-08-03 17:50:58 +02:00
power_cpu_migrate.h
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preemptirq.h
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printk.h
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pwc.h
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pwm.h pwm/tracing: Also record trace events for failed API calls 2022-12-06 12:46:23 +01:00
qdisc.h net: Print hashed skb addresses for all net and qdisc events 2022-06-27 11:57:06 +01:00
qla.h scsi: qla2xxx: tracing: Use the new __vstring() helper 2022-07-19 11:20:25 -04:00
qrtr.h
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rcu.h rcu: Refactor rcu_barrier() empty-list handling 2022-02-08 10:12:28 -08:00
rdma_core.h
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regulator.h
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rpcgss.h trace: Relocate event helper files 2022-12-10 11:01:12 -05:00
rpcrdma.h trace: Relocate event helper files 2022-12-10 11:01:12 -05:00
rpm.h
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rseq.h
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rtc.h
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rv.h rv/monitor: Add the wwnr monitor 2022-07-30 14:01:30 -04:00
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: Fix overproduction of wakeups to recvmsg() 2023-02-20 08:33:25 +01:00
sched.h sched/tracing: Append prev_state to tp args instead 2022-05-12 00:37:11 +02:00
scmi.h firmware: arm_scmi: Harmonize SCMI tracing message format 2022-08-23 12:21:37 +01:00
scsi.h scsi: trace: Print driver_tag and scheduler_tag in SCSI trace 2022-06-21 21:43:23 -04:00
sctp.h
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signal.h
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siox.h
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skb.h net: use %pS for kfree_skb tracing event location 2022-11-24 15:27:49 +01:00
smbus.h
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sock.h net/sock: Introduce trace_sk_data_ready() 2023-01-23 11:26:50 +00:00
sof.h ASoC: SOF: replace ipc4-loader dev_vdbg with tracepoints 2022-09-19 15:44:08 +01:00
sof_intel.h ASoC: SOF: Intel: replace dev_vdbg with tracepoints 2022-09-19 15:44:06 +01:00
spi.h spi: Enable tracing of the SPI setup CS selection 2021-05-26 21:22:13 +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 SUNRPC: Make the svc_authenticate tracepoint conditional 2022-12-10 11:01:13 -05:00
sunvnet.h
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swiotlb.h swiotlb: make the swiotlb_init interface more useful 2022-04-18 07:21:11 +02:00
syscalls.h
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target.h
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task.h
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tcp.h tcp: Add tracepoint for tcp_set_ca_state 2022-04-07 20:33:15 -07:00
tegra_apb_dma.h
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thermal.h drivers/thermal/cpufreq_cooling : Refactor thermal_power_cpu_get_power tracing 2022-07-28 17:29:42 +02:00
thermal_power_allocator.h
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thermal_pressure.h arch_topology: Trace the update thermal pressure 2022-05-06 09:57:38 +02:00
thp.h mm/migration: add trace events for THP migrations 2022-03-24 19:06:45 -07:00
timer.h tracing/timer: Add missing argument documentation of trace points 2022-04-14 16:14:49 +02:00
tlb.h
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udp.h
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ufs.h scsi: ufs: core: Enable power management for wlun 2021-05-10 22:28:20 -04:00
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 tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate 2022-05-19 14:08:55 -07:00
vsock_virtio_transport_common.h virtio/vsock: update trace event for SEQPACKET 2021-06-11 13:32:47 -07:00
watchdog.h watchdog: Add tracing events for the most usual watchdog events 2022-10-12 09:47:02 +02:00
wbt.h
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workqueue.h workqueue: Fix type of cpu in trace event 2022-06-07 07:09:47 -10:00
writeback.h remove congestion tracking framework 2022-03-22 15:57:01 -07:00
xdp.h xdp: Extend xdp_redirect_map with broadcast support 2021-05-26 09:46:16 +02:00
xen.h x86/mm/tlb: Flush remote and local TLBs concurrently 2021-03-06 12:59:10 +01:00