diff options
| author | Oleg Nesterov <oleg@tv-sign.ru> | 2008-08-20 16:54:44 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-22 15:17:31 +0200 |
| commit | 93dcf55f828b035fc93fc19eb03c1390e1e6d570 (patch) | |
| tree | 8a5b2ee5c5bb664ff856483244cec1f249a129a3 /mm/pdflush.c | |
| parent | f31e11d87a5d7601636710195891ba462ad99f11 (diff) | |
wait_task_inactive: "improve" the returned value for ->nvcsw == 0
wait_task_inactive() returns 1 when p->nvcsw == 0 || p->nvcsw == 1. This
means that two subsequent calls can return the same number while the task
was scheduled in between.
Change the code to return "nvcsw | LONG_MIN" instead of "nvcsw ?: 1", now
the overlap always needs LONG_MAX schedules.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/pdflush.c')
0 files changed, 0 insertions, 0 deletions