Help in pid_task()

[sebas sujeen <sujeen.vegeta@xxxxxxxxx>]

hey guys, i am having a small doubt in "pid_task" function in kernel/pid.c.. Assume if the type is PIDTYPE_PGID, then it means that there are multiple processes associated with the process group and each has its own task_struct..so how come the function returns the task_struct of the "head" element of the hlist_node? Sorry if my assumptions are wrong! Thanks in advance
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