• Oleg Nesterov's avatar
    proc: turn signal_struct->count into "int nr_threads" · b3ac022c
    Oleg Nesterov authored
    No functional changes, just s/atomic_t count/int nr_threads/.
    
    With the recent changes this counter has a single user, get_nr_threads()
    And, none of its callers need the really accurate number of threads, not
    to mention each caller obviously races with fork/exit.  It is only used to
    report this value to the user-space, except first_tid() uses it to avoid
    the unnecessary while_each_thread() loop in the unlikely case.
    
    It is a bit sad we need a word in struct signal_struct for this, perhaps
    we can change get_nr_threads() to approximate the number of threads using
    signal->live and kill ->nr_threads later.
    
    [akpm@linux-foundation.org: coding-style fixes]
    Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
    Cc: Alexey Dobriyan <adobriyan@gmail.com>
    Cc: "Eric W. Biederman" <ebiederm@xmission.com>
    Acked-by: default avatarRoland McGrath <roland@redhat.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    b3ac022c
fork.c 41.4 KB