task_work: add a scheduling point in task_work_run()
It seems commit4a9d4b02
(switch fput to task_work_add) reintroduced the problem addressed in commit944be0b2
(close_files(): add scheduling point) If a server process with a lot of files (say 2 million tcp sockets) is killed, we can spend a lot of time in task_work_run() and trigger a soft lockup. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -75,6 +75,7 @@ void task_work_run(void)
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p = q->next;
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q->func(q);
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q = p;
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cond_resched();
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}
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}
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}
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