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authorMike Christie <michael.christie@oracle.com>2023-03-10 16:03:23 -0600
committerChristian Brauner (Microsoft) <brauner@kernel.org>2023-03-12 10:52:46 +0100
commitcf587db2ee0261c74d04f61f39783db88a0b65e4 (patch)
tree5fecb82e0ea27438d473a165f274b9355ce0cd42 /kernel/fork.c
parente0a98139c162af9601ffa8d6db88dbe745f64b3c (diff)
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kernel: Allow a kernel thread's name to be set in copy_process
This patch allows kernel users to pass in the thread name so it can be set during creation instead of having to use set_task_comm after the thread is created. Signed-off-by: Mike Christie <michael.christie@oracle.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index f68954d05e89..81dfb2532148 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2112,6 +2112,9 @@ static __latent_entropy struct task_struct *copy_process(
siginitsetinv(&p->blocked, sigmask(SIGKILL)|sigmask(SIGSTOP));
}
+ if (args->name)
+ strscpy_pad(p->comm, args->name, sizeof(p->comm));
+
p->set_child_tid = (clone_flags & CLONE_CHILD_SETTID) ? args->child_tid : NULL;
/*
* Clear TID on mm_release()?
@@ -2730,7 +2733,8 @@ pid_t kernel_clone(struct kernel_clone_args *args)
/*
* Create a kernel thread.
*/
-pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
+pid_t kernel_thread(int (*fn)(void *), void *arg, const char *name,
+ unsigned long flags)
{
struct kernel_clone_args args = {
.flags = ((lower_32_bits(flags) | CLONE_VM |
@@ -2738,6 +2742,7 @@ pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
.exit_signal = (lower_32_bits(flags) & CSIGNAL),
.fn = fn,
.fn_arg = arg,
+ .name = name,
.kthread = 1,
};