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task_work: add a scheduling point in task_work_run()
It seems commit4a9d4b024a
("switch fput to task_work_add") re- introduced the problem addressed in944be0b224
("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: Linus Torvalds <torvalds@linux-foundation.org>
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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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