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Define a function combining vm entry lookup and clip-start
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Authored by dougm on Jan 1 2020, 7:48 AM.
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Details

Summary

Most uses of vm_map_clip_start follow a call to vm_map_lookup. Define an inline function vm_map_lookup_clip_start that invokes them both and use it in places that invoke both. Drop a couple of local variables made unnecessary by this function.

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I ran a preliminary 5 hour tests + a buildworld with D22987.66203.diff on r356250. No problems seen.

Add an important omitted line.

I ran a full stress2 test on r356314 + D22987.66269.diff. No problems seen.

Seems reasonable to me.

sys/vm/vm_map.c
2418

This line should be indented by four spaces.

3754

This comment is still missing a period. I'm not sure it is very useful to begin with.

This revision is now accepted and ready to land.Jan 23 2020, 5:51 PM