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authorSteven Rostedt <rostedt@goodmis.org>2011-02-08 12:39:54 -0500
committerIngo Molnar <mingo@elte.hu>2011-02-16 13:35:08 +0100
commit48228f7b470a74b6469a250d2977a13128d8fe96 (patch)
tree1ed8f82ffef779ccf665f68c1fcf302d34d09826 /scripts/rt-tester/t2-l1-signal.tst
parenta3ec4a603faf4244e275bf11b467aad092dfbd8a (diff)
lockdep/timers: Explain in detail the locking problems del_timer_sync() may cause
Twice I had to explain the output about why lockdep gives an error with locks in IRQ context and with del_timer_sync(). Might as well write it up and place it in the comments above the code in del_timer_sync(). Perhaps the next time this lockdep dump triggers people will understand the issues. It is a ticky issue and very subtle, explaining it in detail in the code may help others understand the issue when they stumble upon the bug again. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1297186794.23343.19.camel@gandalf.stny.rr.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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