Messages in this thread | | | Subject | Re: [PATCH v5 00/11] Add a new LOOP_CONFIGURE ioctl | From | Jens Axboe <> | Date | Thu, 21 May 2020 08:21:01 -0600 |
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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
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