tree 422219331fb039396ff24d9df6e1d5293cde1bd4
parent 212274347fc4d2a7c56bf6c953b02c809e7e0be1
author Li Zefan <lizf@cn.fujitsu.com> 1250487589 +0800
committer Ingo Molnar <mingo@elte.hu> 1250495680 +0200

lockdep: Fix missing entries in /proc/lock_chains

Two entries are missing in the output of /proc/lock_chains.

One is chains[1]. When lc_next() is called the 1st time,
chains[0] is returned. And when it's called the 2nd time,
chains[2] is returned.

The other missing ons is, when lc_start() is called the 2nd
time, we should start from chains[@pos-1] but not chains[@pos],
because pos == 0 is the header.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <4A88ED25.2040306@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>