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| author | Nick Piggin <nickpiggin@yahoo.com.au> | 2004-08-23 21:07:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-08-23 21:07:19 -0700 |
| commit | 49717553aec00cc22dd4917eb451e680c405b51b (patch) | |
| tree | ffa6ae8ea177f2472d7a911ac11aa50db56301f0 /kernel/fork.c | |
| parent | 3632d86ab3f9badaf2b2cdc26e58a8b9be59939f (diff) | |
[PATCH] kernel thread idle fix
Now that init_idle does not remove tasks from the runqueue, those
architectures that use kernel_thread instead of copy_process for the idle
task will break. To fix, ensure that CLONE_IDLETASK tasks are not put on
the runqueue in the first place.
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/fork.c')
| -rw-r--r-- | kernel/fork.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 88a2712c7273..bf522f2f33ca 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1215,11 +1215,13 @@ long do_fork(unsigned long clone_flags, set_tsk_thread_flag(p, TIF_SIGPENDING); } - if (!(clone_flags & CLONE_STOPPED)) - wake_up_new_task(p, clone_flags); - else - p->state = TASK_STOPPED; - ++total_forks; + if (likely(!(clone_flags & CLONE_IDLETASK))) { + if (!(clone_flags & CLONE_STOPPED)) + wake_up_new_task(p, clone_flags); + else + p->state = TASK_STOPPED; + ++total_forks; + } if (unlikely (trace)) { current->ptrace_message = pid; |