Commit Graph

3 Commits

Author SHA1 Message Date
John Baldwin
8a503ad2c9 MFC 196637:
Mark the fake pages constructed by the OBJT_SG pager valid.  This was
accidentally lost at one point during the PAT development.  Without this
fix vm_pager_get_pages() was zeroing each of the pages.

Approved by:	re (kib)
2009-09-01 15:50:07 +00:00
John Baldwin
63cbfee7b0 Remove debugging that crept in with previous commit.
Reported by:	nwhitehorn
Approved by:	re (kib)
2009-07-24 15:06:49 +00:00
John Baldwin
013818111a Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to
a device pager (OBJT_DEVICE) object in that it uses fictitious pages to
provide aliases to other memory addresses.  The primary difference is that
it uses an sglist(9) to determine the physical addresses for a given offset
into the object instead of invoking the d_mmap() method in a device driver.

Reviewed by:	alc
Approved by:	re (kensmith)
MFC after:	2 weeks
2009-07-24 13:50:29 +00:00