1RCU_READ_LOCK_BH_HEL(9)          Driver Basics         RCU_READ_LOCK_BH_HEL(9)
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NAME

6       rcu_read_lock_bh_held - might we be in RCU-bh read-side critical
7       section?
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SYNOPSIS

10       int rcu_read_lock_bh_held(void);
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ARGUMENTS

13       void
14           no arguments
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DESCRIPTION

17       Check for bottom half being disabled, which covers both the
18       CONFIG_PROVE_RCU and not cases. Note that if someone uses
19       rcu_read_lock_bh, but then later enables BH, lockdep (if enabled) will
20       show the situation.
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22       Check debug_lockdep_rcu_enabled to prevent false positives during boot.
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25Kernel Hackers Manual 2.6.       November 2011         RCU_READ_LOCK_BH_HEL(9)
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