On Wed, Mar 25, 2020 at 06:23:25PM +0100, Toke Høiland-Jørgensen wrote: > This series adds support for atomically replacing the XDP program loaded on an > interface. This is achieved by means of a new netlink attribute that can specify > the expected previous program to replace on the interface. If set, the kernel > will compare this "expected id" attribute with the program currently loaded on > the interface, and reject the operation if it does not match. > > With this primitive, userspace applications can avoid stepping on each other's > toes when simultaneously updating the loaded XDP program. > > Changelog: > > v4: > - Switch back to passing FD instead of ID (Andrii) > - Rename flag to XDP_FLAGS_REPLACE (for consistency with other similar uses) please stop resending the set without concluding the previous three! discussion threads. It's already hard enough for people to follow.
