PC-BSD/trueos 41f6591 — sys/vm vm_map.c
Save a call to pmap_remove() if entry cannot have any pages mapped. Due to the way rtld creates mappings for the shared objects, each dso causes unmap of at least three guard map entries. For instance, in the buildworld load, this change reduces the amount of pmap_remove() calls by 1/5. Profiled by: alc Reviewed by: alc, markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D16148
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+8 | -1 | sys/vm/vm_map.c |
+8 | -1 | 1 files |