alc 2008-07-27 17:32:36 UTC
FreeBSD src repository
Modified files:
sys/amd64/amd64 pmap.c
Log:
SVN rev 180845 on 2008-07-27 17:32:36Z by alc
Enhance pmap_change_attr(). Use pmap_demote_pde() to demote a 2MB page
mapping to 4KB page mappings when the specified attribute change only
applies to a portion of the 2MB page. Previously, in such cases,
pmap_change_attr() gave up and returned an error.
Submitted by: Magesh Dhasayyan
Revision Changes Path
1.635 +22 -9 src/sys/amd64/amd64/pmap.c
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