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| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2009-01-19 13:45:31 +0100 |
|---|---|---|
| committer | Arjan van de Ven <arjan@linux.intel.com> | 2009-02-08 09:56:10 -0800 |
| commit | 86532d8b167e71e24da8b564348b52977b76d15f (patch) | |
| tree | 86cfa88409db2867ddfc45322f7cd3175b6accad | |
| parent | 7a89bbc74937cd74a6bcf109cfc7c032109639be (diff) | |
| download | linux-86532d8b167e71e24da8b564348b52977b76d15f.tar.gz linux-86532d8b167e71e24da8b564348b52977b76d15f.tar.bz2 linux-86532d8b167e71e24da8b564348b52977b76d15f.zip | |
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 after waiting for
a bit.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
| -rw-r--r-- | kernel/async.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/async.c b/kernel/async.c index 0c90d500ab68..078d5ed150d1 100644 --- a/kernel/async.c +++ b/kernel/async.c @@ -54,6 +54,7 @@ asynchronous and synchronous parts of the kernel. #include <linux/sched.h> #include <linux/init.h> #include <linux/kthread.h> +#include <linux/delay.h> #include <asm/atomic.h> static async_cookie_t next_cookie = 1; @@ -319,7 +320,11 @@ static int async_manager_thread(void *unused) 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))) { + msleep(100); + continue; + } atomic_inc(&thread_count); tc++; } @@ -334,7 +339,9 @@ static int async_manager_thread(void *unused) 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; } |