Lockdep: add lockdep_set_class_and_subclass() and lockdep_set_subclass()

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This annotation makes it possible to assign a subclass on lock init. This
annotation is meant to reduce the _nested() annotations by assigning a
default subclass.

One could do without this annotation and rely on lockdep_set_class()
exclusively, but that would require a manual stack of struct lock_class_key
objects.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

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Peter Zijlstra 2006-10-11 01:45:14 -04:00 • committed by Dmitry Torokhov

parent 86255d9d0b

commit 4dfbb9d8c6

7 changed files with 23 additions and 14 deletions

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15

include/linux/lockdep.h

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