On 12.12.19 07:04, Jürgen Groß wrote:
On 11.12.19 16:29, Paul Durrant wrote:
Currently these macros are defined to re-initialize a front/back ring
(respectively) to values read from the shared ring in such a way that any
requests/responses that are added to the shared ring whilst the
front/back
is detached will be skipped over. This, in general, is not a desirable
semantic since most frontend implementations will eventually block
waiting
for a response which would either never appear or never be processed.
Since the macros are currently unused, take this opportunity to re-define
them to re-initialize a front/back ring using specified values. This also
allows FRONT/BACK_RING_INIT() to be re-defined in terms of
FRONT/BACK_RING_ATTACH() using a specified value of 0.
NOTE: BACK_RING_ATTACH() will be used directly in a subsequent patch.
Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
Paul, I think you should send a patch changing ring.h in the Xen tree.
As soon as it has been accepted I'll take your series for the kernel.
Juergen
