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Do not collapse objects with OBJ_NOSPLIT backing swap object.

Description

Do not collapse objects with OBJ_NOSPLIT backing swap object.

NOSPLIT swap objects are not anonymous, they are used by tmpfs regular
files and POSIX shared memory. For such objects, collapse is not
permitted.

Reported by: mjg
Reviewed by: markj, trasz
Tested by: mjg, pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D19923

Details

Committed
kibMay 5 2019, 11:06 AM
Reviewer
markj
Differential Revision
D19923: Switch to use shared vnode locks for text files during image activation.
Parents
rS347149: MFC r333980:
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