evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

rcu: Use IS_ENABLED() to CONFIG_RCU_FANOUT_EXACT #ifdef

Browse source 
This commit uses IS_ENABLED() to remove the #ifdef from the
rcu_init_levelspread() functions.  No effect on executable code.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2015-01-19 19:16:38 -08:00
parent 9bae6592d7
commit 6629240575
1 changed files with 13 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
kernel/rcu/tree.c
View file

@ -3734,21 +3734,17 @@ void rcu_scheduler_starting(void)
* Compute the per-level fanout, either using the exact fanout specified * Compute the per-level fanout, either using the exact fanout specified
* or balancing the tree, depending on CONFIG_RCU_FANOUT_EXACT. * or balancing the tree, depending on CONFIG_RCU_FANOUT_EXACT.
*/ */
#ifdef CONFIG_RCU_FANOUT_EXACT
static void __init rcu_init_levelspread(struct rcu_state *rsp) static void __init rcu_init_levelspread(struct rcu_state *rsp)
{ {
int i; int i;
if (IS_ENABLED(CONFIG_RCU_FANOUT_EXACT)) {
rsp->levelspread[rcu_num_lvls - 1] = rcu_fanout_leaf; rsp->levelspread[rcu_num_lvls - 1] = rcu_fanout_leaf;
for (i = rcu_num_lvls - 2; i >= 0; i--) for (i = rcu_num_lvls - 2; i >= 0; i--)
rsp->levelspread[i] = CONFIG_RCU_FANOUT; rsp->levelspread[i] = CONFIG_RCU_FANOUT;
} } else {
#else /* #ifdef CONFIG_RCU_FANOUT_EXACT */
static void __init rcu_init_levelspread(struct rcu_state *rsp)
{
int ccur; int ccur;
int cprv; int cprv;
int i;
cprv = nr_cpu_ids; cprv = nr_cpu_ids;
for (i = rcu_num_lvls - 1; i >= 0; i--) { for (i = rcu_num_lvls - 1; i >= 0; i--) {
@ -3757,7 +3753,7 @@ static void __init rcu_init_levelspread(struct rcu_state *rsp)
cprv = ccur; cprv = ccur;
} }
} }
#endif /* #else #ifdef CONFIG_RCU_FANOUT_EXACT */ }
/* /*
* Helper function for rcu_init() that initializes one rcu_state structure. * Helper function for rcu_init() that initializes one rcu_state structure.