git: kernel - Fix overflows and races in zalloc()
commit 65622d85922eb51fe098fef2323a0bdb2ac7dee8
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Sat Nov 12 08:51:18 2011 -0800
kernel - Fix overflows and races in zalloc()
* Fix a 32 bit overflow which would crash machines with large amounts of
ram once the number of PV entries (in bytes) exceeds the 2GB mark.
* Refactor the page allocation to allow vm_page_alloc() and friends to block.
* Don't depend on being unqueued, wire the related pages.
Summary of changes:
sys/vm/vm_zone.c | 70 ++++++++++++++++++++++++++++++++---------------------
1 files changed, 42 insertions(+), 28 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/65622d85922eb51fe098fef2323a0bdb2ac7dee8
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