diff options
| author | Nick Piggin <nickpiggin@yahoo.com.au> | 2004-10-18 09:10:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-10-18 09:10:25 -0700 |
| commit | 71da3667be80d30121df3972caa0bf5684228379 (patch) | |
| tree | f8b78f7547dc91abfe337fd255b76dccf5ab655e /kernel | |
| parent | 0298ac9c9b2bab88cd64d0ab6f60044c841ff746 (diff) | |
[PATCH] sched: hotplug add a CPU_DOWN_FAILED notifier
Introduce CPU_DOWN_FAILED notifier, so we can cope with a failure after a
CPU_DOWN_PREPARE notice.
This fixes 3/8 "add CPU_DOWN_PREPARE notifier" to be useful
Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cpu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 84e78a6560bc..719ba42ff5ee 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -141,6 +141,11 @@ int cpu_down(unsigned int cpu) p = __stop_machine_run(take_cpu_down, NULL, cpu); if (IS_ERR(p)) { + /* CPU didn't die: tell everyone. Can't complain. */ + if (notifier_call_chain(&cpu_chain, CPU_DOWN_FAILED, + (void *)(long)cpu) == NOTIFY_BAD) + BUG(); + err = PTR_ERR(p); goto out_allowed; } |