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mm/iob/iob_notifier.c: Don't check iob_navail in iob_notifier_setup to avoid a potential race condition.

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This commit is contained in:
Xiang Xiao
2019-01-26 09:43:54 -06:00
committed by Gregory Nutt
parent 427f8c743c
commit ee28417246
2 changed files with 0 additions and 37 deletions
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include/nuttx/mm/iob.h
-24
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@@ -272,30 +272,6 @@ int iob_notifier_setup(int qid, worker_t worker, FAR void *arg);
int iob_notifier_teardown(int key);
#endif
/****************************************************************************
* Name: iob_notifier_signal
*
* Description:
* An IOB has become available. Signal all threads waiting for an IOB
* that an IOB is available.
*
* When an IOB becomes available, *all* of the workers waiting for an
* IOB will be executed. If there are multiple workers for waiting an IOB
* then only the first to execute will get the IOB. Others will
* need to call iob_notify_setup() once again.
*
* Input Parameters:
* None.
*
* Returned Value:
* None.
*
****************************************************************************/
#ifdef CONFIG_IOB_NOTIFIER
void iob_notifier_signal(void);
#endif
/****************************************************************************
* Name: iob_free_chain
*