android_kernel_motorola_sm6375/kernel/trace
Repository files (latest commit first)
Filename Latest commit message Latest commit date
zhoumin e5b4ae6f01 ftrace: Add cond_resched() to ftrace_graph_set_hash()
commit 42ea22e754ba4f2b86f8760ca27f6f71da2d982c upstream.

When the kernel contains a large number of functions that can be traced,
the loop in ftrace_graph_set_hash() may take a lot of time to execute.
This may trigger the softlockup watchdog.

Add cond_resched() within the loop to allow the kernel to remain
responsive even when processing a large number of functions.

This matches the cond_resched() that is used in other locations of the
code that iterates over all functions that can be traced.

Cc: stable@vger.kernel.org
Fixes: b9b0c831be ("ftrace: Convert graph filter to use hash tables")
Link: https://lore.kernel.org/tencent_3E06CE338692017B5809534B9C5C03DA7705@qq.com
Signed-off-by: zhoumin <teczm@foxmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-02 07:39:17 +02:00
..
blktrace.c
bpf_trace.c bpf: Use preempt_count() directly in bpf_send_signal_common() 2025-04-10 14:29:40 +02:00
fgraph.c
ftrace.c ftrace: Add cond_resched() to ftrace_graph_set_hash() 2025-05-02 07:39:17 +02:00
ftrace_internal.h
Kconfig
Makefile
power-traces.c
preemptirq_delay_test.c tracing: Add MODULE_DESCRIPTION() to preemptirq_delay_test 2024-07-05 09:08:25 +02:00
ring_buffer.c ring-buffer: Fix bytes_dropped calculation issue 2025-04-10 14:29:42 +02:00
ring_buffer_benchmark.c
rpm-traces.c
trace.c tracing: Have saved_cmdlines arrays all in one allocation 2024-11-08 16:20:43 +01:00
trace.h
trace_benchmark.c
trace_benchmark.h
trace_branch.c
trace_clock.c tracing: Use atomic64_inc_return() in trace_clock_counter() 2024-12-14 19:44:53 +01:00
trace_dynevent.c
trace_dynevent.h
trace_entries.h
trace_event_perf.c trace/trace_event_perf: remove duplicate samples on the first tracepoint event 2024-12-14 19:44:28 +01:00
trace_events.c tracing: fix return value in __ftrace_event_enable_disable for TRACE_REG_UNREGISTER 2025-05-02 07:39:11 +02:00
trace_events_filter.c
trace_events_filter_test.h
trace_events_hist.c
trace_events_trigger.c Revert "tracing/trigger: Fix to return error if failed to alloc snapshot" 2024-05-02 16:18:30 +02:00
trace_export.c
trace_functions.c
trace_functions_graph.c tracing: Fix use-after-free in print_graph_function_flags during tracer switching 2025-04-10 14:29:43 +02:00
trace_hwlat.c
trace_irqsoff.c tracing: Fix use-after-free in print_graph_function_flags during tracer switching 2025-04-10 14:29:43 +02:00
trace_kdb.c
trace_kprobe.c tracing/kprobe: Make trace_kprobe's module callback called after jump_label update 2025-01-09 13:23:31 +01:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_mmiotrace.c
trace_nop.c
trace_output.c tracing: Remove precision vsnprintf() check from print event 2024-11-08 16:20:43 +01:00
trace_output.h
trace_preemptirq.c
trace_printk.c
trace_probe.c tracing: Consider the NULL character when validating the event length 2024-11-08 16:20:51 +01:00
trace_probe.h tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols 2024-11-08 16:20:47 +01:00
trace_probe_tmpl.h
trace_sched_switch.c
trace_sched_wakeup.c tracing: Fix use-after-free in print_graph_function_flags during tracer switching 2025-04-10 14:29:43 +02:00
trace_selftest.c
trace_selftest_dynamic.c
trace_seq.c
trace_stack.c
trace_stat.c
trace_stat.h
trace_syscalls.c
trace_uprobe.c
tracing_map.c tracing: Fix cmp_entries_dup() to respect sort() comparison rules 2024-12-14 19:44:48 +01:00
tracing_map.h