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authorTejun Heo <tj@kernel.org>2010-12-08 20:57:38 +0100
committerJens Axboe <jaxboe@fusionio.com>2010-12-16 17:53:38 +0100
commit2d9217296bfa6fdc0d3707264076e5296faffdbd (patch)
treeea929977770d95a47a4e7cbf15f13fb0e3d8dcad /Documentation/blockdev
parent77ea887e433ad8389d416826936c110fa7910f80 (diff)
cdrom: add ->check_events() support
In principle, cdrom just needs to pass through ->check_events() but CDROM_MEDIA_CHANGED ioctl makes things a bit more complex. Just as with ->media_changed() support, cdrom code needs to buffer the events and serve them to ioctl and vfs as requested. As the code has to deal with both ->check_events() and ->media_changed(), and vfs and ioctl event buffering, this patch adds check_events caching on top of the existing cdi->mc_flags buffering. It may be a good idea to deprecate CDROM_MEDIA_CHANGED ioctl and remove all this mess. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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