CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2011/04/15 15:35:16
Modified files:
sys/uvm : uvm_page.c
Log message:
Add a bit of paranoia to uvm_pageinsert.
At various times diffs have had debugging that checked that we don't
insert a page into the tree on top of an existing page, leaking that
page's references. Until the recent hackathon (and introduction if
uvm_pagealloc_multi) the bufcache for example did a rb tree look up on
insert to check (under #ifdef DEBUG || 1) so instead just check it on
pageinsert every time, since RB_INSERT returns any duplicates so this
check is pretty much free.
``emphatically yes'' beck@
