I like it, with some minor tweaks. I recommend:
* name the new function vm_map_findspace2() (or something similarly
short.
* change all callers of vm_map_findspace() to instead call
vm_map_findspace2() directly.
* depreciate the original vm_map_findspace() entirely (get rid of
it rather then supplying a compatibility function).
The name change is to ensure that out of date loadable modules
don't try to use the new function with the wrong arguments. Better
to get a kld error then to crash.
-Matt
:On i86 boxes with 4M page capabilities, we want contiguous chunks
:of physical address space for mmaped devices to use those larger pages
:when possible.
:
:In practice, this doesn't happen in applications linked with shared
:libraries when mmap() is used in the usual way with 0 as the address
:argument and no MAP_FIXED flag.
:...
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