path: root/cddl/sbin/zfs
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authorPawel Jakub Dawidek <pjd@FreeBSD.org>2007-04-05 23:19:13 +0000
committerPawel Jakub Dawidek <pjd@FreeBSD.org>2007-04-05 23:19:13 +0000
commitdc68a633328c51142a160e723a32cc1427404674 (patch)
tree9ed987e18488c2d072c46b0c8e96ad41c49a8b1d /cddl/sbin/zfs
parent616db5f04c01535e19a01056bbd75cbec5284559 (diff)
Implement functionality I called 'jail services'.
It may be used for external modules to attach some data to jail's in-kernel structure. - Change allprison_mtx mutex to allprison_sx sx(9) lock. We will need to call external functions while holding this lock, which may want to allocate memory. Make use of the fact that this is shared-exclusive lock and use shared version when possible. - Implement the following functions: prison_service_register() - registers a service that wants to be noticed when a jail is created and destroyed prison_service_deregister() - deregisters service prison_service_data_add() - adds service-specific data to the jail structure prison_service_data_get() - takes service-specific data from the jail structure prison_service_data_del() - removes service-specific data from the jail structure Reviewed by: rwatson
Notes: svn path=/head/; revision=168401
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