CVS commit: [riastradh-drm2] src/sys/external/bsd/drm2/drm

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Wed Jul 24 02:33:17 UTC 2013

Added Files:
        src/sys/external/bsd/drm2/drm [riastradh-drm2]: drm_lock.c

Log Message:
Add a local drm_lock.c, since I can't make sense of Linux's.

This leaves drm_idlelock_take and drm_idlelock_release unimplemented
until I can figure out the intended semantics.  Linux's code doesn't
guarantee that the lock is taken when drm_idlelock_take returns, and
provides no way to check whether the current lwp/thread/whatever owns
the lock as intended, so there's no way to add diagnostic checks for
the correct use of the API.


To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1.2.1 src/sys/external/bsd/drm2/drm/drm_lock.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.