Messages in this thread Patch in this message | | | From | Nigel Cunningham <> | Subject | [ 14/23] [Suspend2] Helper for counting freezeable threads of a type. | Date | Thu, 26 Jan 2006 13:45:55 +1000 |
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Add a helper, which returns the number of threads of the given type (userspace only or all) that are still to be frozen.
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 dffe645..d5d052a 100644 --- a/kernel/power/process.c +++ b/kernel/power/process.c @@ -204,6 +204,29 @@ void thaw_processes(int do_all_threads) } } +/* + * num_freezeable + * + * Description: Determine how many processes of our type are still to be + * frozen. As a side effect, update the progress bar too. + * Parameters: int Which type we are trying to freeze. + * int Whether we are displaying our progress. + */ +static int num_freezeable(int do_all_threads) +{ + struct task_struct *g, *p; + int todo_this_type = 0; + + read_lock(&tasklist_lock); + do_each_thread(g, p) { + if (freezeable(p, do_all_threads)) + todo_this_type++; + } while_each_thread(g, p); + read_unlock(&tasklist_lock); + + return todo_this_type; +} + 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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