diff options
| author |   Eric W. Biederman <ebiederm@xmission.com> | 2022-04-11 16:17:28 -0500 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2022-05-07 09:01:59 -0500 |
| commit | 36cb0e1cda645ee645b85a6ce652cb46a16e14e5 (patch) | |
| tree | f4c38b8a981df1a2f7fd4681c6cc4f6859893f0f /arch/ia64/kernel | |
| parent | fork: Pass struct kernel_clone_args into copy_thread (diff) | |
| download | linux-dev-36cb0e1cda645ee645b85a6ce652cb46a16e14e5.tar.xz linux-dev-36cb0e1cda645ee645b85a6ce652cb46a16e14e5.zip | |
fork: Explicity test for idle tasks in copy_thread
The architectures ia64 and parisc have special handling for the idle
thread in copy_process. Add a flag named idle to kernel_clone_args
and use it to explicity test if an idle process is being created.
Fullfill the expectations of the rest of the copy_thread
implemetations and pass a function pointer in .stack from fork_idle().
This makes what is happening in copy_thread better defined, and is
useful to make idle threads less special.
Link: https://lkml.kernel.org/r/20220506141512.516114-3-ebiederm@xmission.com
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'arch/ia64/kernel')
| -rw-r--r-- | arch/ia64/kernel/process.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 10d41ded05a5..8f010ae818bc 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -342,7 +342,7 @@ copy_thread(struct task_struct *p, const struct kernel_clone_args *args) ia64_drop_fpu(p); /* don't pick up stale state from a CPU's fph */ if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) { - if (unlikely(!user_stack_base)) { + if (unlikely(args->idle)) { /* fork_idle() called us */ return 0; } |