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    SubjectRe: [PATCH 01/23] tref: Implement task references.
    "Eric W. Biederman" wrote:
    >
    > Unless we can implement do_each_task_pid/while_each_task_pid in terms
    > of for_each_task_pid. I am nervous about making the conversion.

    Yes, of course. Currently I have:

    #define for_each_task_pid(head, who, type, task) \
    if ((head = find_pid(who))) \
    list_for_each_entry(task, ((head)->tasks + type), pids[type])

    // OBSOLETE
    #define do_each_task_pid(who, type, task) \
    do { \
    struct pid_head * __pid_head__; \
    for_each_task_pid(__pid_head__, who, type, task) {

    #define while_each_task_pid(who, type, task) \
    } \
    } while (0)

    It's better not to change the users of do_each_task_pid() for some
    time at least.

    Oleg.
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