diff options
| author | Lai Jiangshan <jiangshanlai@gmail.com> | 2019-10-15 10:28:47 +0000 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-01-24 10:33:45 -0800 |
| commit | e2167b38c87a0c9e85c342a823dae1e6f67b11d9 (patch) | |
| tree | 5e7e5ffc1582e7ed83663c20c3f999b44323d4e8 /kernel/rcu/tree_stall.h | |
| parent | 4778339df0ee361dbf2cbdcb87abaec9dfbc841d (diff) | |
rcu: Move gp_state_names[] and gp_state_getname() to tree_stall.h
Only tree_stall.h needs to get name from GP state, so this commit
moves the gp_state_names[] array and the gp_state_getname()
from kernel/rcu/tree.h and kernel/rcu/tree.c, respectively, to
kernel/rcu/tree_stall.h. While moving gp_state_names[], this commit
uses the GCC syntax to ensure that the right string is associated with
the right CPP macro.
Signed-off-by: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/tree_stall.h')
| -rw-r--r-- | kernel/rcu/tree_stall.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/kernel/rcu/tree_stall.h b/kernel/rcu/tree_stall.h index c0b8c458d8a6..f18adaf3bf39 100644 --- a/kernel/rcu/tree_stall.h +++ b/kernel/rcu/tree_stall.h @@ -279,6 +279,28 @@ static void print_cpu_stall_fast_no_hz(char *cp, int cpu) #endif /* #else #ifdef CONFIG_RCU_FAST_NO_HZ */ +static const char * const gp_state_names[] = { + [RCU_GP_IDLE] = "RCU_GP_IDLE", + [RCU_GP_WAIT_GPS] = "RCU_GP_WAIT_GPS", + [RCU_GP_DONE_GPS] = "RCU_GP_DONE_GPS", + [RCU_GP_ONOFF] = "RCU_GP_ONOFF", + [RCU_GP_INIT] = "RCU_GP_INIT", + [RCU_GP_WAIT_FQS] = "RCU_GP_WAIT_FQS", + [RCU_GP_DOING_FQS] = "RCU_GP_DOING_FQS", + [RCU_GP_CLEANUP] = "RCU_GP_CLEANUP", + [RCU_GP_CLEANED] = "RCU_GP_CLEANED", +}; + +/* + * Convert a ->gp_state value to a character string. + */ +static const char *gp_state_getname(short gs) +{ + if (gs < 0 || gs >= ARRAY_SIZE(gp_state_names)) + return "???"; + return gp_state_names[gs]; +} + /* * Print out diagnostic information for the specified stalled CPU. * |