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* Coverity: io_wqe_worker(): Program hangs
@ 2019-10-28 23:05 coverity-bot
  2019-10-28 23:27 ` Jens Axboe
  0 siblings, 1 reply; 5+ messages in thread
From: coverity-bot @ 2019-10-28 23:05 UTC (permalink / raw)
  To: Jens Axboe; +Cc: Gustavo A. R. Silva, linux-next


This is an experimental automated report about issues detected by Coverity
from a scan of next-20191025 as part of the linux-next weekly scan project:

You're getting this email because you were associated with the identified
lines of code (noted below) that were touched by recent commits:

46134db8fdc5 ("io-wq: small threadpool implementation for io_uring")

Coverity reported the following:

*** CID 1487365:  Program hangs  (LOCK)
/fs/io-wq.c: 349 in io_wqe_worker()
343     			io_worker_handle_work(worker);
344     		else
345     			spin_unlock(&wqe->lock);
346     	}
348     	io_worker_exit(worker);
vvv     CID 1487365:  Program hangs  (LOCK)
vvv     Returning without unlocking "(*wqe).lock".
349     	return 0;
350     }
352     /*
353      * Check head of free list for an available worker. If one isn't available,
354      * caller must wake up the wq manager to create one.

If this is a false positive, please let us know so we can mark it as
such, or teach the Coverity rules to be smarter. If not, please make
sure fixes get into linux-next. :) For patches fixing this, please

Reported-by: coverity-bot <>
Addresses-Coverity-ID: 1487365 ("Program hangs")
Fixes: 46134db8fdc5 ("io-wq: small threadpool implementation for io_uring")

Thanks for your attention!


^ permalink raw reply	[flat|nested] 5+ messages in thread

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-- links below jump to the message on this page --
2019-10-28 23:05 Coverity: io_wqe_worker(): Program hangs coverity-bot
2019-10-28 23:27 ` Jens Axboe
2019-10-28 23:30   ` Kees Cook
2019-10-28 23:35     ` Jens Axboe
2019-10-29 16:11       ` Kees Cook

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