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refscale: Provide for initialization failure

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Current tests all have init() functions that are guaranteed to succeed.
But upcoming tests will need to allocate memory, thus possibly failing.
This commit therefore handles init() function failure.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2022-11-06 20:58:15 -08:00
parent 95f93e97ed
commit 3c6496c86e
1 changed files with 11 additions and 5 deletions
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16
kernel/rcu/refscale.c
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@ -124,7 +124,7 @@ static int exp_idx;
// Operations vector for selecting different types of tests.
struct ref_scale_ops {
void (*init)(void);
bool (*init)(void);
void (*cleanup)(void);
void (*readsection)(const int nloops);
void (*delaysection)(const int nloops, const int udl, const int ndl);
@ -162,8 +162,9 @@ static void ref_rcu_delay_section(const int nloops, const int udl, const int ndl
}
}
static void rcu_sync_scale_init(void)
static bool rcu_sync_scale_init(void)
{
return true;
}
static struct ref_scale_ops rcu_ops = {
@ -315,9 +316,10 @@ static struct ref_scale_ops refcnt_ops = {
// Definitions for rwlock
static rwlock_t test_rwlock;
static void ref_rwlock_init(void)
static bool ref_rwlock_init(void)
{
rwlock_init(&test_rwlock);
return true;
}
static void ref_rwlock_section(const int nloops)
@ -351,9 +353,10 @@ static struct ref_scale_ops rwlock_ops = {
// Definitions for rwsem
static struct rw_semaphore test_rwsem;
static void ref_rwsem_init(void)
static bool ref_rwsem_init(void)
{
init_rwsem(&test_rwsem);
return true;
}
static void ref_rwsem_section(const int nloops)
@ -833,7 +836,10 @@ ref_scale_init(void)
goto unwind;
}
if (cur_ops->init)
cur_ops->init();
if (!cur_ops->init()) {
firsterr = -EUCLEAN;
goto unwind;
}
ref_scale_print_module_parms(cur_ops, "Start of test");