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CVS commit: [uebayasi-xip] src/sys/miscfs/genfs
Module Name: src
Committed By: uebayasi
Date: Sun Sep 26 07:06:57 UTC 2010
src/sys/miscfs/genfs [uebayasi-xip]: genfs_io.c
Implement XIP "putpages". Invalidate MMU mappings of pages at the
request of PGO_FREE. PGO_DEACTIVATE and PGO_CLEANIT do nothing, because
XIP pages are neither queued nor writable.
Allocate read-only "zero" page per vnode. Put it at offset 0 of vnode's
uvm_object. This per-vnode "zero" page is mapped to all hole pages of
the vnode. If one of its mapped pages are forced to be PGO_FREE'ed,
all the mappings are invalidated.
To generate a diff of this commit:
cvs rdiff -u -r188.8.131.52 -r184.108.40.206 src/sys/miscfs/genfs/genfs_io.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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