locking/lockdep: Rework lockdep_lock
authorPeter Zijlstra <peterz@infradead.org>
Fri, 13 Mar 2020 10:09:49 +0000 (11:09 +0100)
committerPeter Zijlstra <peterz@infradead.org>
Fri, 20 Mar 2020 12:06:25 +0000 (13:06 +0100)
commit248efb2158f1e23750728e92ad9db3ab60c14485
tree6979964a2e77874905f407e47b5fefdc670cb13a
parent10476e6304222ced7df9b3d5fb0a043b3c2a1ad8
locking/lockdep: Rework lockdep_lock

A few sites want to assert we own the graph_lock/lockdep_lock, provide
a more conventional lock interface for it with a number of trivial
debug checks.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200313102107.GX12561@hirez.programming.kicks-ass.net
kernel/locking/lockdep.c