Hi, just a note: the most difficult part in the implementation of this patch has been how to handle the fact that the requeue and finish hooks of the active elevator get invoked even for requests that are not referred in that elevator any longer. You can find details in the comments introduced by the patch. This note is just to point out this unexpected fact (for me), in case it is not intentional. Thanks, Paolo Paolo Valente (1): block, bfq: add requeue-request hook block/bfq-iosched.c | 101 +++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 76 insertions(+), 25 deletions(-) -- 2.15.1