K 10
svn:author
V 6
kaktus
K 8
svn:date
V 27
2020-02-06T12:45:58.468869Z
K 7
svn:log
V 571
sysctl(9): add CTLFLAG_NEEDGIANT flag

Add CTLFLAG_NEEDGIANT flag (modelled after D_NEEDGIANT) that will be used to
mark sysctls that still require locking Giant.

Rewrite sysctl_handle_string() to use internal locking instead of locking
Giant.

Mark SYSCTL_STRING, SYSCTL_OPAQUE and their variants as MPSAFE.

Add infrastructure support for enforcing proper use of CTLFLAG_NEEDGIANT
and CTLFLAG_MPSAFE flags with SYSCTL_PROC and SYSCTL_NODE, not enabled yet.

Reviewed by:	kib (mentor)
Approved by:	kib (mentor)
Differential Revision:	https://reviews.freebsd.org/D23378

END