| commit | e3eedc46fed7298f25e5bb5f0291ba17f90a6abe | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Mon, 18 Jul 2016 18:44:11 +0000 (18 11:44 -0700) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sun, 24 Jul 2016 03:57:18 +0000 (23 20:57 -0700) | ||
| tree | 869abdefa3c4b8b977fa0c00aeb083f50d5c4fd5 | treesnapshot (tar.gz zip) |
| parent | d7993ba507efd77d28d3f7aa2c71887a429518bb | commitdiff |
kernel - Refactor buffer cache code in preparation for vm_page repurposing
* Keep buffer_map but no longer use vm_map_findspace/vm_map_delete to manage
buffer sizes. Instead, reserve MAXBSIZE of unallocated KVM for each buffer.
* Refactor the buffer cache management code. bufspace exhaustion now has
hysteresis, bufcount works just about the same.
* Start work on the repurposing code (currently disabled).
* Keep buffer_map but no longer use vm_map_findspace/vm_map_delete to manage
buffer sizes. Instead, reserve MAXBSIZE of unallocated KVM for each buffer.
* Refactor the buffer cache management code. bufspace exhaustion now has
hysteresis, bufcount works just about the same.
* Start work on the repurposing code (currently disabled).
19 files changed: