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exit: Remove profile_handoff_task

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All profile_handoff_task does is notify the task_free_notifier chain.
The helpers task_handoff_register and task_handoff_unregister are used
to add and delete entries from that chain and are never called.

So remove the dead code and make it much easier to read and reason
about __put_task_struct.

Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lkml.kernel.org/r/87fspyw6m0.fsf@email.froward.int.ebiederm.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman
2022-01-08 10:03:24 -06:00
parent 2d4bcf886e
commit 2873cd31a2
3 changed files with 1 additions and 45 deletions
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4
kernel/fork.c
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@@ -754,9 +754,7 @@ void __put_task_struct(struct task_struct *tsk)
delayacct_tsk_free(tsk);
put_signal_struct(tsk->signal);
sched_core_free(tsk);
if (!profile_handoff_task(tsk))
free_task(tsk);
free_task(tsk);
}
EXPORT_SYMBOL_GPL(__put_task_struct);