Re: [Xen-devel] [PATCH RESEND 1/8] gnttab: drop useless locking

2017-08-15 Thread Andrew Cooper
On 15/08/17 15:38, Jan Beulich wrote: > Holding any lock while accessing the maptrack entry fields is > pointless, as these entries are protected by their associated active > entry lock (which is being acquired later, before re-validating the > fields read without holding the lock). > >

[Xen-devel] [PATCH RESEND 1/8] gnttab: drop useless locking

2017-08-15 Thread Jan Beulich
Holding any lock while accessing the maptrack entry fields is pointless, as these entries are protected by their associated active entry lock (which is being acquired later, before re-validating the fields read without holding the lock). Signed-off-by: Jan Beulich ---