c8659efac5
Adding to the tail of the client request list as the only other user is in the throttle ioctl that iterates forwards over the list. It only needs protection against deletion of a request as it reads it, it simply won't see a new request added to the end of the list, or it would be too early and rejected. We can further reduce the number of spinlocks required when throttling by removing stale requests from the client_list as we throttle. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170302122525.19675-1-chris@chris-wilson.co.uk |
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