staging:iio:buffer add a cache of the timestamp scan index.
authorJonathan Cameron <jic23@cam.ac.uk>
Mon, 5 Dec 2011 21:37:11 +0000 (21:37 +0000)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 8 Dec 2011 19:36:11 +0000 (11:36 -0800)
Basically avoids looking it up lots of times.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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