On 5/13/20 7:38 AM, Martijn Coenen wrote: > This series introduces a new ioctl that makes it possible to atomically > configure a loop device. Previously, if you wanted to set parameters > such as the offset on a loop device, this required calling LOOP_SET_FD > to set the backing file, and then LOOP_SET_STATUS to set the offset. > However, in between these two calls, the loop device is available and > would accept requests, which is generally not desirable. Similar issues > exist around setting the block size (LOOP_SET_BLOCK_SIZE) and requesting > direct I/O mode (LOOP_SET_DIRECT_IO). > > There are also performance benefits with combining these ioctls into > one, which are described in more detail in the last change in the > series.
Thanks, applied for 5.8. -- Jens Axboe
