K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2020-08-17T17:14:56.975971Z
K 7
svn:log
V 551
Skip Linux madvise(MADV_DONTNEED) on unmanaged objects.

vm_object_madvise() is a no-op for unmanaged objects, but we should also
limit the scope of mappings on which pmap_remove() is called.  In
particular, with the WIP largepage shm objects patch the kernel must
remove mappings of such objects along superpage boundaries, and without
this check Linux madvise(MADV_DONTNEED) could violate that requirement.

Reviewed by:	alc, kib
MFC with:	r362631
Sponsored by:	Juniper Networks, Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D26084

END