Messages in this thread Patch in this message | | | From | Nigel Cunningham <> | Subject | [ 17/23] [Suspend2] Helper to prod processes that should have frozen but haven't. | Date | Thu, 26 Jan 2006 13:46:01 +1000 |
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Add a helper which prods processes of the type we are currently trying to freeze, seeking to get them to run their todo lists.
Signed-off-by: Nigel Cunningham <nigel@suspend2.net>
kernel/power/process.c | 23 +++++++++++++++++++++++ 1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/kernel/power/process.c b/kernel/power/process.c index 2857c8b..b2a9147 100644 --- a/kernel/power/process.c +++ b/kernel/power/process.c @@ -275,6 +275,29 @@ static void signal_threads(int do_all_th read_unlock(&tasklist_lock); } +/* + * Prod processes that haven't entered the refrigerator yet. + */ +static void prod_processes(int do_all_threads) +{ + struct task_struct *g, *p; + unsigned long flags; + + read_lock(&tasklist_lock); + do_each_thread(g, p) { + if (!freezeable(p, do_all_threads)) + continue; + + spin_lock_irqsave(&p->sighand->siglock, flags); + if (!(p->flags & PF_FROZEN)) { + recalc_sigpending(); + signal_wake_up(p, 0); + } + spin_unlock_irqrestore(&p->sighand->siglock, flags); + } while_each_thread(g, p); + read_unlock(&tasklist_lock); +} + static inline void freeze(struct task_struct *p) { unsigned long flags; -- Nigel Cunningham nigel at suspend2 dot net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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