rather than assigning to the whole field, set or clear individual flags,
which implies that the B_BUSY and B_INVAL flags will remain set.
this allows us to make the assertion in brelse() that B_BUSY is set,
which is the purpose of all this.
routine. Works similarly fto pmap_prefer(), but allows callers
to specify a minimum power-of-two alignment of the region.
How we ever got along without this for so long is beyond me.
<vm/pglist.h> -> <uvm/uvm_pglist.h>
<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
<vm/vm_object.h> -> nothing
<vm/vm_pager.h> -> into <uvm/uvm_pager.h>
also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".
Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.
- for bold characters, only blit the leftmost ftwidth pixels per character
cell row. The rightmost row which used to be printed would have been
overwritten formerly by the next character on sequential output, so no
visible change will result most of the time.
This fixes two problems:
* USE_C_BFOPS (which only works for 8 pixel wide fonts) blits the same
for bold characters now... it used to print the rightmost 8 pixel columns
of the bold-smeared characters
* we no longer need a reserved 1 pixel column at the right end of the screen.
That is, a 640x400 screen will hold 80x50 charactes with the 8x8 font.
as sizeof(struct device) when amiga switched to new config, and recent
additions of callout structures and a long missing struct device to the
soft structure resulted in kernel panics when attempting to open the builtin
serial port. The callout structure initialization was clearing the serial
port softc data! Fixed by using sizeof(struct par_softc).
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.
The old timeout()/untimeout() API has been removed from the kernel.
martin