Commit f341861f authored by Eric Dumazet's avatar Eric Dumazet Committed by Linus Torvalds

task_work: add a scheduling point in task_work_run()

It seems commit 4a9d4b02 ("switch fput to task_work_add") re-
introduced the problem addressed in 944be0b2 ("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: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent ec5da7f8
...@@ -75,6 +75,7 @@ void task_work_run(void) ...@@ -75,6 +75,7 @@ void task_work_run(void)
p = q->next; p = q->next;
q->func(q); q->func(q);
q = p; q = p;
cond_resched();
} }
} }
} }
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