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| author |   zhoumin <teczm@foxmail.com> | 2025-04-01 01:00:34 +0800 |
|---|---|---|
| committer |   Steven Rostedt (Google) <rostedt@goodmis.org> | 2025-04-02 09:51:25 -0400 |
| commit | 42ea22e754ba4f2b86f8760ca27f6f71da2d982c (patch) | |
| tree | 8710fc517e702c8ff127a25788f8e23e50f8231d /scripts/lib/kdoc/kdoc_output.py | |
| parent | tracing: Free module_delta on freeing of persistent ring buffer (diff) | |
| download | linux-rng-42ea22e754ba4f2b86f8760ca27f6f71da2d982c.tar.xz linux-rng-42ea22e754ba4f2b86f8760ca27f6f71da2d982c.zip | |
ftrace: Add cond_resched() to ftrace_graph_set_hash()
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: b9b0c831bed26 ("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>
Diffstat (limited to 'scripts/lib/kdoc/kdoc_output.py')
0 files changed, 0 insertions, 0 deletions