At 14:49 +0100 on 05 May (1430837355), Ian Campbell wrote:
> On Thu, 2015-04-30 at 16:33 +0100, David Vrabel wrote:
> > add_sized(ptr, inc) adds inc to the value at ptr using only the correct
> > size of loads and stores for the type of *ptr. The add is /not/ atomic.
>
> atomic.h is an odd place
On Thu, 2015-04-30 at 16:33 +0100, David Vrabel wrote:
> add_sized(ptr, inc) adds inc to the value at ptr using only the correct
> size of loads and stores for the type of *ptr. The add is /not/ atomic.
atomic.h is an odd place for it then ;-) But given you use the
infrastructure I can't suggest
add_sized(ptr, inc) adds inc to the value at ptr using only the correct
size of loads and stores for the type of *ptr. The add is /not/ atomic.
This is needed for ticket locks to ensure the increment of the head ticket
does not affect the tail ticket.
Signed-off-by: David Vrabel
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xen/includ
