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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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