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Subject[PATCH 1/2] async: Handle kthread_run() return codes.
If we fail to create the manager thread, fall back to non-fastboot.
If we fail to create an async thread, try again when the manager
thread runs again.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

---
kernel/async.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)

--- linux-2.6.orig/kernel/async.c
+++ linux-2.6/kernel/async.c
@@ -315,11 +315,14 @@ static int async_manager_thread(void *un
ec = atomic_read(&entry_count);

while (tc < ec && tc < MAX_THREADS) {
- kthread_run(async_thread, NULL, "async/%i", tc);
+ if (IS_ERR(kthread_run(async_thread, NULL, "async/%i",
+ tc)))
+ /* Try again later. */
+ goto schedule;
atomic_inc(&thread_count);
tc++;
}
-
+schedule:
schedule();
}
remove_wait_queue(&async_new, &wq);
@@ -330,7 +333,9 @@ static int async_manager_thread(void *un
static int __init async_init(void)
{
if (async_enabled)
- kthread_run(async_manager_thread, NULL, "async/mgr");
+ if (IS_ERR(kthread_run(async_manager_thread, NULL,
+ "async/mgr")))
+ async_enabled = 0;
return 0;
}


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