ftrace: safe traversal of ftrace_hash hlist

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Hi Steven,

I noticed that concurrent instances of ftrace_record_ip()
have a race between ftrace_hash list traversal during
ftrace_ip_in_hash() (before acquiring ftrace_shutdown_lock)
and ftrace_add_hash(). If it's so then this should fix it.

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: rostedt@goodmis.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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Abhishek Sagar 2008-05-24 23:45:02 +05:30 • committed by Thomas Gleixner

parent ccbfac2923

commit ffdaa3582b

1 changed files with 2 additions and 2 deletions

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kernel/trace/ftrace.c

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