centos man page for rcu_read_lock_bh_held

Query: rcu_read_lock_bh_held

OS: centos

Section: 9

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

RCU_READ_LOCK_BH_HEL(9) 					   Driver Basics					   RCU_READ_LOCK_BH_HEL(9)

NAME
rcu_read_lock_bh_held - might we be in RCU-bh read-side critical section?
SYNOPSIS
int rcu_read_lock_bh_held(void);
ARGUMENTS
void no arguments
DESCRIPTION
Check for bottom half being disabled, which covers both the CONFIG_PROVE_RCU and not cases. Note that if someone uses rcu_read_lock_bh, but then later enables BH, lockdep (if enabled) will show the situation. This is useful for debug checks in functions that require that they be called within an RCU read-side critical section. Check debug_lockdep_rcu_enabled to prevent false positives during boot. Note that rcu_read_lock is disallowed if the CPU is either idle or offline from an RCU perspective, so check for those as well.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 RCU_READ_LOCK_BH_HEL(9)
Related Man Pages
struct_tid_ampdu_rx(9) - centos
ns_csenter(3aolserv) - debian
critical(9) - debian
critical(9) - freebsd
critical_enter(9) - mojave
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