K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2018-12-02T13:16:46.570939Z
K 7
svn:log
V 618
Change the vm_ooffset_t type to unsigned.

The type represents byte offset in the vm_object_t data space, which
does not span negative offsets in FreeBSD VM.  The change matches byte
offset signess with the unsignedness of the vm_pindex_t which
represents the type of the page indexes in the objects.

This allows to remove the UOFF_TO_IDX() macro which was used when we
have to forcibly interpret the type as unsigned anyway.  Also it fixes
a lot of implicit bugs in the device drivers d_mmap methods.

Reviewed by:	alc, markj (previous version)
Tested by:	pho
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation

END