| commit | 8d496bf981b2cacb9c21ccdb66a9991978c986ea | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Tue, 2 Mar 2010 00:09:41 +0000 (1 16:09 -0800) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Tue, 2 Mar 2010 00:09:41 +0000 (1 16:09 -0800) | ||
| tree | 8f2d98bdc2d72e74c1be235c4cf9adfbf940b432 | treesnapshot (tar.gz zip) |
| parent | f31d07d7c51000e06197074816ce13f92489a135 | commitdiff |
kernel - Move grow_stack code in fault path to improve fault performance
* grow_stack() calls were being performed unconditionally during a
page fault. Shift the code over to vm_fault() and only run it if
the vm_map_lookup() call fails.
* Also take this opportunity to remove trapwrite() (added by Matt).
Submitted-by: Venkatesh Srinivas <me@endeavour.zapto.org>
* grow_stack() calls were being performed unconditionally during a
page fault. Shift the code over to vm_fault() and only run it if
the vm_map_lookup() call fails.
* Also take this opportunity to remove trapwrite() (added by Matt).
Submitted-by: Venkatesh Srinivas <me@endeavour.zapto.org>