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Andrii Nakryiko 4a8f635a60 bpf: remove unnecessary rcu_read_{lock,unlock}() in multi-uprobe attach logic 
get_pid_task() internally already calls rcu_read_lock() and
rcu_read_unlock(), so there is no point to do this one extra time.

This is a drive-by improvement and has no correctness implications.

Acked-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20240521163401.3005045-3-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-05-25 10:46:02 -07:00
..
rv
tracing/tools: Updates for 6.4
2023-04-28 16:11:26 -07:00
blktrace.c
block: remove more NULL checks after bdev_get_queue()
2023-02-21 09:23:22 -07:00
bpf_trace.c
bpf: remove unnecessary rcu_read_{lock,unlock}() in multi-uprobe attach logic
2024-05-25 10:46:02 -07:00
bpf_trace.h
…
error_report-traces.c
…
fgraph.c
ftrace: Remove unused global 'ftrace_direct_func_count'
2024-05-14 02:09:40 -04:00
fprobe.c
fprobe: Fix to allocate entry_data_size buffer with rethook instances
2024-03-01 09:18:24 +09:00
ftrace_internal.h
tracing: arm64: Avoid missing-prototype warnings
2023-07-12 12:06:04 -04:00
ftrace.c
tracing cleanups for v6.10:
2024-05-17 18:34:27 -07:00
Kconfig
Probes updates for v6.10:
2024-05-17 18:29:30 -07:00
kprobe_event_gen_test.c
tracing: Fix wrong return in kprobe_event_gen_test.c
2023-03-19 12:20:48 -04:00
Makefile
tracing/probes: Move finding func-proto API and getting func-param API to trace_btf
2023-08-23 09:39:45 +09:00
pid_list.c
tracing: Cleanup double word in comment
2022-04-26 17:58:50 -04:00
pid_list.h
tracing: Create a sparse bitmask for pid filtering
2021-10-05 17:38:45 -04:00
power-traces.c
…
preemptirq_delay_test.c
…
rethook.c
rethook: honor CONFIG_FTRACE_VALIDATE_RCU_IS_WATCHING in rethook_try_get()
2024-05-01 23:18:48 +09:00
ring_buffer_benchmark.c
ring-buffer: Read and write to ring buffers with custom sub buffer size
2023-12-20 07:54:56 -05:00
ring_buffer.c
ring-buffer: Add cast to unsigned long addr passed to virt_to_page()
2024-05-15 01:28:42 -04:00
rpm-traces.c
…
synth_event_gen_test.c
tracing / synthetic: Disable events after testing in synth_event_gen_test_init()
2023-12-21 10:04:45 -05:00
trace_benchmark.c
tracing: Improve benchmark test performance by using do_div()
2024-05-13 20:00:57 -04:00
trace_benchmark.h
tracing: Add numeric delta time to the trace event benchmark
2022-09-26 13:01:09 -04:00
trace_boot.c
tracing: Allow creating instances with specified system events
2023-12-18 23:14:16 -05:00
trace_branch.c
…
trace_btf.c
tracing/probes: Fix to search structure fields correctly
2024-02-17 21:25:42 +09:00
trace_btf.h
tracing/probes: Add a function to search a member of a struct/union
2023-08-23 09:40:16 +09:00
trace_clock.c
tracing: Do no increment trace_clock_global() by one
2021-06-18 09:10:00 -04:00
trace_dynevent.c
tracing: Free buffers when a used dynamic event is removed
2022-11-23 19:07:12 -05:00
trace_dynevent.h
tracing: Add DYNAMIC flag for dynamic events
2021-08-18 18:10:32 -04:00
trace_entries.h
tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure
2023-07-30 18:11:44 -04:00
trace_eprobe.c
tracing/probes: Support $argN in return probe (kprobe and fprobe)
2024-03-07 00:27:34 +09:00
trace_event_perf.c
tracing/perf: Use strndup_user instead of kzalloc/strncpy_from_user
2022-11-23 19:08:31 -05:00
trace_events_filter_test.h
…
trace_events_filter.c
tracing: Have trace_event_file have ref counters
2023-11-01 23:44:44 -04:00
trace_events_hist.c
tracing histograms: Simplify parse_actions() function
2024-01-08 13:24:56 -05:00
trace_events_inject.c
tracing: Have event inject files inc the trace array ref count
2023-09-07 16:38:54 -04:00
trace_events_synth.c
tracing/synthetic: Fix trace_string() return value
2024-02-15 11:40:01 -05:00
trace_events_trigger.c
tracing: Decrement the snapshot if the snapshot trigger fails to register
2024-03-18 10:33:05 -04:00
trace_events_user.c
user-event updates for v6.10:
2024-05-17 18:46:30 -07:00
trace_events.c
eventfs/tracing: Add callback for release of an eventfs_inode
2024-05-04 04:25:37 -04:00
trace_export.c
tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure
2023-07-30 18:11:44 -04:00
trace_fprobe.c
tracing/probes: support '%pd' type for print struct dentry's name
2024-05-01 23:18:47 +09:00
trace_functions_graph.c
function_graph: Support recording and printing the return value of function
2023-06-20 18:38:37 -04:00
trace_functions.c
ftrace: disable preemption when recursion locked
2021-10-27 11:21:49 -04:00
trace_hwlat.c
tracing: Remove extra space at the end of hwlat_detector/mode
2023-09-01 21:00:00 -04:00
trace_irqsoff.c
tracing: Fix memleak due to race between current_tracer and trace
2023-08-17 13:49:37 -04:00
trace_kdb.c
kdb: Rename members of struct kdbtab_t
2021-07-27 17:05:06 +01:00
trace_kprobe_selftest.c
tracing: arm64: Avoid missing-prototype warnings
2023-07-12 12:06:04 -04:00
trace_kprobe_selftest.h
…
trace_kprobe.c
Probes updates for v6.10:
2024-05-17 18:29:30 -07:00
trace_mmiotrace.c
…
trace_nop.c
…
trace_osnoise.c
tracing/timerlat: Move hrtimer_init to timerlat_fd open()
2024-02-01 11:50:13 -05:00
trace_output.c
tracing: Remove precision vsnprintf() check from print event
2024-03-06 13:26:26 -05:00
trace_output.h
tracing: Add "fields" option to show raw trace event fields
2023-03-29 06:52:08 -04:00
trace_preemptirq.c
cpuidle: tracing, preempt: Squash _rcuidle tracing
2023-01-31 15:01:46 +01:00
trace_printk.c
tracing: Disable "other" permission bits in the tracefs files
2021-10-08 18:08:43 -04:00
trace_probe_kernel.h
tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails
2023-07-14 17:04:58 +09:00
trace_probe_tmpl.h
tracing/probes: Support $argN in return probe (kprobe and fprobe)
2024-03-07 00:27:34 +09:00
trace_probe.c
Probes updates for v6.10:
2024-05-17 18:29:30 -07:00
trace_probe.h
tracing/probes: support '%pd' type for print struct dentry's name
2024-05-01 23:18:47 +09:00
trace_recursion_record.c
tracing: Use trace_create_file() to simplify creation of tracefs entries
2022-05-26 21:12:52 -04:00
trace_sched_switch.c
tracing: Move saved_cmdline code into trace_sched_switch.c
2024-03-17 07:58:53 -04:00
trace_sched_wakeup.c
tracing: Fix memleak due to race between current_tracer and trace
2023-08-17 13:49:37 -04:00
trace_selftest_dynamic.c
…
trace_selftest.c
tracing: Support to dump instance traces by ftrace_dump_on_oops
2024-03-18 10:33:06 -04:00
trace_seq.c
trace_seq: Increase the buffer size to almost two pages
2023-12-18 23:14:16 -05:00
trace_stack.c
tracing: Disable "other" permission bits in the tracefs files
2021-10-08 18:08:43 -04:00
trace_stat.c
tracing: Disable "other" permission bits in the tracefs files
2021-10-08 18:08:43 -04:00
trace_stat.h
…
trace_synth.h
tracing: Allow synthetic events to pass around stacktraces
2023-01-25 10:31:24 -05:00
trace_syscalls.c
bpf: Change syscall_nr type to int in struct syscall_tp_t
2023-10-13 12:39:36 -07:00
trace_uprobe.c
uprobes: add speculative lockless system-wide uprobe filter check
2024-05-01 23:18:46 +09:00
trace.c
tracing ring buffer updates for v6.10:
2024-05-17 18:40:37 -07:00
trace.h
tracing: Allow user-space mapping of the ring-buffer
2024-05-13 18:09:56 -04:00
tracing_map.c
tracing: Ensure visibility when inserting an element into tracing_map
2024-01-22 17:15:40 -05:00
tracing_map.h
tracing: Remove unused extern declaration tracing_map_set_field_descr()
2023-07-23 11:08:14 -04:00