On Tue, Oct 30, 2018 at 4:06 PM Evan Green <evgreen@xxxxxxxxxxxx> wrote: > > If the backing device for a loop device is a block device, > then mirror the discard properties of the underlying block > device into the loop device. While in there, differentiate > between REQ_OP_DISCARD and REQ_OP_WRITE_ZEROES, which are > different for block devices, but which the loop device had > just been lumping together. > > Signed-off-by: Evan Green <evgreen@xxxxxxxxxxxx> Any thoughts on this patch? This fixes issues for us when using a loop device backed by a block device, where we see many logs like: [ 372.767286] print_req_error: I/O error, dev loop5, sector 88125696 -Evan
