tree dbf8193b0e8f3b6c0e735b48c1f8201a6df207ac
parent 381a229209aa6f7f72375797b7bcfcfe2ae6fcbb
author Jason Baron <jbaron@redhat.com> 1171100699 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1171219886 -0800

[PATCH] lockdep: add graph depth information to /proc/lockdep

Generate locking graph information into /proc/lockdep, for lock hierarchy
documentation and visualization purposes.

sample output:

 c089fd5c OPS:     138 FD:   14 BD:    1 --..: &tty->termios_mutex
  -> [c07a3430] tty_ldisc_lock
  -> [c07a37f0] &port_lock_key
  -> [c07afdc0] &rq->rq_lock_key#2

The lock classes listed are all the first-hop lock dependencies that
lockdep has seen so far.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>