lockdep: Fix missing entries in /proc/lock_chains

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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>

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Li Zefan 2009-08-17 13:39:49 +08:00 • committed by Ingo Molnar

parent 212274347f

commit e9d65725bd

1 changed files with 4 additions and 4 deletions

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kernel/lockdep_proc.c

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