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authorLi Zefan <lizf@cn.fujitsu.com>2009-05-07 15:11:15 +0800
committerIngo Molnar <mingo@elte.hu>2009-05-07 10:07:28 +0200
commitd94fc523f3c35bd8013f04827e94756cbc0212f4 (patch)
treeaacd8c0aaa2024437b7bfba4636afcc87f4890bf /init
parenttracing/filters: support for operator reserved characters in strings (diff)
downloadlinux-dev-d94fc523f3c35bd8013f04827e94756cbc0212f4.tar.xz
linux-dev-d94fc523f3c35bd8013f04827e94756cbc0212f4.zip
tracing/events: fix concurrent access to ftrace_events list, fix
In filter_add_subsystem_pred() we should release event_mutex before calling filter_free_subsystem_preds(), since both functions hold event_mutex. [ Impact: fix deadlock when writing invalid pred into subsystem filter ] Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: tzanussi@gmail.com Cc: a.p.zijlstra@chello.nl Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org LKML-Reference: <4A028993.7020509@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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