Re: [PATCH v5 3/4] migration: support UFFD write fault processing in ram_save_iterate()

2020-12-08 Thread Peter Xu
On Fri, Dec 04, 2020 at 12:31:02PM +0300, Andrey Gruzdev wrote: > In this particular implementation the same single migration > thread is responsible for both normal linear dirty page > migration and procesing UFFD page fault events. > > Processing write faults includes reading UFFD file descripto

[PATCH v5 3/4] migration: support UFFD write fault processing in ram_save_iterate()

2020-12-04 Thread Andrey Gruzdev via
In this particular implementation the same single migration thread is responsible for both normal linear dirty page migration and procesing UFFD page fault events. Processing write faults includes reading UFFD file descriptor, finding respective RAM block and saving faulting page to the migration