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    SubjectRe: [RFC] [PATCH 0/7] Some basic vserver infrastructure
    Sam Vilain wrote:

    >Using the term "task_ns" and ID term "nsid":
    > CONFIG_TASK_NS - config option
    > typedef unsigned int nsid_t;
    > struct task_ns
    > task_struct->task_ns
    > task_struct->nsid
    > task_nsid(struct task*) - get an NSID from a task_struct
    > current_nsid - get NSID for current
    > task_ns_state(struct task_ns*, TASK_NS_STATE_FOO) - does task_ns hav...
    > create_task_ns - creates a new context and "hashes" it
    > lookup_task_ns - lookup a task_ns by nsid
    > get_task_ns - increase refcount of a task_ns
    > [...]
    > release_task_ns - decrease the process count for a task_ns
    > task_get_task_ns - like get_task_ns, but by process
    > task_ns_migrate_task - join task to a task_ns
    > task_ns_printk - debugging printk (for CONFIG_TASK_NS_DEBUG)
    > task_ns_hist_alloc_task_ns - history tracing (for CONFIG_TASK_NS_HI...
    > constants:
    > TASK_NS_STATE_FOO - state bits
    > TASK_NS_FLAG_FOO - task_ns flags (to select features)
    > TASK_NS_CAP_FOO - task_ns-specific capabilities
    > TASK_NS_CMD_get_version - task_ns subcommand names

    One more (apparently suggested by Eric Biederman, though perhaps he had
    different ideas about what it would look like)

    CONFIG_SPACE - config option
    typedef unsigned int space_t;
    struct space_info;
    task_space_id(struct task*) - get an SPACE_ID from a task_struct
    current_space_id - get SPACE_ID for current
    space_info_state(struct space_info*, TASK_SPACE_STATE_FOO) - does ...
    create_space - creates a new space and "hashes" it
    lookup_space - lookup a space_info by space_id
    get_space_info - increase refcount of a space_info
    put_space_info - decrease refcount of a space_info
    grab_space - increase the process count for a space
    release_space - decrease the process count for a space
    task_get_space_info - like get_space_info, but by process
    space_migrate_task - join task to a space
    space_printk - debugging printk (for CONFIG_SPACE_DEBUG)
    space_hist_alloc_space - history tracing (for CONFIG_SPACE_HI...
    SPACE_STATE_FOO - state bits
    SPACE_FLAG_FOO - task_ns flags (to select features)
    SPACE_CAP_FOO - task_ns-specific capabilities
    SPACE_CMD_get_version - task_ns subcommand names

    Something like that, anyway. I must admit "Task Spaces" sounds a little
    less dorky than "Task Namespaces", but doesn't roll off the tongue that
    well because of the '-sk s..' combination.


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