4 Commits

Author	SHA1	Message	Date
Tom	b2a52f6208	Kernel: Implement lazy committed page allocation ... By designating a committed page pool we can guarantee to have physical pages available for lazy allocation in mappings. However, when forking we will overcommit. The assumption is that worst-case it's better for the fork to die due to insufficient physical memory on COW access than the parent that created the region. If a fork wants to ensure that all memory is available (trigger a commit) then it can use madvise. This also means that fork now can gracefully fail if we don't have enough physical pages available.	2021-01-01 23:43:44 +01:00
Andreas Kling	48bbfe51fb	Kernel: Add some InodeVMObject type assertions in Region::clone() ... Let's make sure that we're never cloning shared inode-backed objects as if they were private, and vice versa.	2020-03-01 11:23:10 +01:00
Andreas Kling	5f7056d62c	Kernel: Expose the VMObject type of each Region in /proc/PID/vm	2020-02-28 23:25:40 +01:00
Andreas Kling	651417a085	Kernel: Split InodeVMObject into two subclasses ... We now have PrivateInodeVMObject and SharedInodeVMObject, corresponding to MAP_PRIVATE and MAP_SHARED respectively. Note that PrivateInodeVMObject is not used yet.	2020-02-28 20:20:35 +01:00