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| author | Paul E. McKenney | 2019-01-12 01:10:57 +0100 |
|---|---|---|
| committer | Paul E. McKenney | 2019-03-26 22:40:13 +0100 |
| commit | 10462d6f58fb6dbde7563e9343505d98d5bfba3d (patch) | |
| tree | 9b8ade352a6fbcb11fa19dd49eb6c8f563ac32d8 /kernel/rcu/rcu.h | |
| parent | Linux 5.1-rc1 (diff) | |
| download | kernel-qcow2-linux-10462d6f58fb6dbde7563e9343505d98d5bfba3d.tar.gz kernel-qcow2-linux-10462d6f58fb6dbde7563e9343505d98d5bfba3d.tar.xz kernel-qcow2-linux-10462d6f58fb6dbde7563e9343505d98d5bfba3d.zip | |
rcu: Move RCU CPU stall-warning code out of update.c
The RCU CPU stall-warning code for normal grace periods is currently
scattered across three files, due to earlier Tiny RCU support for RCU
CPU stall warnings and for old Kconfig options that have long since
been retired. Given that it is hard for the lead RCU maintainer to
find relevant stall-warning code, it would be good to consolidate it.
This commit starts this process by moving stall-warning code from
kernel/rcu/update.c to a new kernel/rcu/tree_stall.h file.
Note that the definitions of rcu_cpu_stall_suppress and
rcu_cpu_stall_timeout must remain in kernel/rcu/update.h to provide
compatibility for kernel boot parameter lists.
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'kernel/rcu/rcu.h')
| -rw-r--r-- | kernel/rcu/rcu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index acee72c0b24b..4b58c907b4b7 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -233,6 +233,7 @@ static inline bool __rcu_reclaim(const char *rn, struct rcu_head *head) #ifdef CONFIG_RCU_STALL_COMMON extern int rcu_cpu_stall_suppress; +extern int rcu_cpu_stall_timeout; int rcu_jiffies_till_stall_check(void); #define rcu_ftrace_dump_stall_suppress() \ |