Patching until the COWs come home (part 1)

Posted Mar 25, 2021 7:29 UTC (Thu) by cladisch (✭ supporter ✭, #50193)
In reply to: Patching until the COWs come home (part 1) by alison
Parent article: Patching until the COWs come home (part 1)

RCU requires that all software that accesses these data structures uses certain patterns and helper functions. (This is why we have many articles about it.)

COW uses the CPU's built-in virtual memory features to make it look to userspace software as if the pages were never shared to begin with.