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authorBernie Thompson <bernie@plugable.com>2010-02-15 06:45:55 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2010-03-03 16:42:59 -0800
commit4a4854dd2049ddc066a162a0f843dc2a78481060 (patch)
treec4b6af4581bfe1024f53bd593267d364ab85d3d7 /virt/kvm
parentcc403dc67d10b895fec14b837fa2a6cb6ee6c8bd (diff)
Staging: udlfb: pre-allocated urb list helpers
Add functions to pre-allocate and free usb bulk urbs for core render path. Udlfb currently allocates a single urb, guarded by a mutex, that is a key bottleneck. Because udlfb sends so much data, preallocation is most efficient. Functions will be used by new rendering functions in later patches. Signed-off-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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