[PATCH v2 1/7] xen: import new ring macros in ring.h

Sync the ring.h file with upstream Xen, to introduce the new ring macros. They will be used by the Xen transport for 9pfs. Signed-off-by: Stefano Stabellini CC: konrad.w...@oracle.com CC: boris.ostrov...@oracle.com CC: jgr...@suse.com --- NB: The new macros have not been

[PATCH v2 1/7] xen: import new ring macros in ring.h

Sync the ring.h file with upstream Xen, to introduce the new ring macros. They will be used by the Xen transport for 9pfs. Signed-off-by: Stefano Stabellini CC: konrad.w...@oracle.com CC: boris.ostrov...@oracle.com CC: jgr...@suse.com --- NB: The new macros have not been committed to Xen yet.