On 3/2/20 9:03 PM, Singh, Balbir wrote: > On Tue, 2020-02-25 at 20:01 +0000, Balbir Singh wrote: >> Allow block/genhd to notify user space about disk size changes using a >> new helper set_capacity_revalidate_and_notify(), which is a wrapper >> on top of set_capacity(). set_capacity_revalidate_and_notify() will only >> notify >> iff the current capacity or the target capacity is not zero and the >> capacity really changes. >> >> Background: >> >> As a part of a patch to allow sending the RESIZE event on disk capacity >> change, Christoph (hch@xxxxxx) requested that the patch be made generic >> and the hacks for virtio block and xen block devices be removed and >> merged via a generic helper. >> >> This series consists of 5 changes. The first one adds the basic >> support for changing the size and notifying. The follow up patches >> are per block subsystem changes. Other block drivers can add their >> changes as necessary on top of this series. Since not all devices >> are resizable, the default was to add a new API and let users >> slowly convert over as needed. >> >> Testing: >> 1. I did some basic testing with an NVME device, by resizing it in >> the backend and ensured that udevd received the event. >> >> >> Changelog v2: >> - Rename disk_set_capacity to set_capacity_revalidate_and_notify >> - set_capacity_revalidate_and_notify can call revalidate disk >> if needed, a new bool parameter is passed (suggested by Bob Liu) >> > > Ping? It's not an urgent patchset, I am happy to wait if nothing else is > needed. It doesn't apply to the 5.7 branches, can you resend against for-5.7/block? -- Jens Axboe
