class BatchPQUpdateBacklink
Defined at line 359 of file ../../zircon/kernel/vm/vm_cow_pages.cc
Helper class for collecting pages to perform batched calls of |ChangeObjectOffset| on the page
queue in order to avoid incurring its spinlock overhead for every single page. Note that pages
are not modified until *after* Flush has been called and Flush must be called prior to object
destruction.
This class has a large internal array and should be marked uninitialized.
Public Methods
void BatchPQUpdateBacklink (VmCowPages * object)Defined at line 361 of file ../../zircon/kernel/vm/vm_cow_pages.cc
void ~BatchPQUpdateBacklink ()Defined at line 362 of file ../../zircon/kernel/vm/vm_cow_pages.cc
void BatchPQUpdateBacklink (const BatchPQUpdateBacklink & )Defined at line 363 of file ../../zircon/kernel/vm/vm_cow_pages.cc
BatchPQUpdateBacklink & operator= (const BatchPQUpdateBacklink & )Defined at line 363 of file ../../zircon/kernel/vm/vm_cow_pages.cc
void Push (vm_page_t * page, uint64_t offset)Add a page to the batch set. Automatically calls |Flush| if the limit is reached.
Defined at line 366 of file ../../zircon/kernel/vm/vm_cow_pages.cc
void Flush ()Performs |ChangeObjectOffset| on any pending pages.
Defined at line 380 of file ../../zircon/kernel/vm/vm_cow_pages.cc