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[PATCH] rcu: refactor srcu_torture_deferred_free to work for any implementation 

Make srcu_torture_deferred_free use cur_ops->sync() so it will work for any
implementation.  Move and rename it in preparation for use in the ops of other
implementations.

Signed-off-by: Josh Triplett <josh@freedesktop.org>
Acked-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Josh Triplett 2006-10-04 02:17:14 -07:00 committed by Linus Torvalds
parent b772e1dd4b
commit e303373658
1 changed files with 29 additions and 24 deletions
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53
kernel/rcutorture.c
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@ -117,6 +117,7 @@ static atomic_t n_rcu_torture_alloc_fail;
static atomic_t n_rcu_torture_free;
static atomic_t n_rcu_torture_mberror;
static atomic_t n_rcu_torture_error;
static struct list_head rcu_torture_removed;
/*
* Allocate an element from the rcu_tortures pool.
@ -270,6 +271,32 @@ static struct rcu_torture_ops rcu_ops = {
.name = "rcu"
};
static void rcu_sync_torture_deferred_free(struct rcu_torture *p)
{
int i;
struct rcu_torture *rp;
struct rcu_torture *rp1;
cur_ops->sync();
list_add(&p->rtort_free, &rcu_torture_removed);
list_for_each_entry_safe(rp, rp1, &rcu_torture_removed, rtort_free) {
i = rp->rtort_pipe_count;
if (i > RCU_TORTURE_PIPE_LEN)
i = RCU_TORTURE_PIPE_LEN;
atomic_inc(&rcu_torture_wcount[i]);
if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
rp->rtort_mbtest = 0;
list_del(&rp->rtort_free);
rcu_torture_free(rp);
}
}
}
static void rcu_sync_torture_init(void)
{
INIT_LIST_HEAD(&rcu_torture_removed);
}
/*
* Definitions for rcu_bh torture testing.
*/
@ -335,12 +362,11 @@ static struct rcu_torture_ops rcu_bh_ops = {
*/
static struct srcu_struct srcu_ctl;
static struct list_head srcu_removed;
static void srcu_torture_init(void)
{
init_srcu_struct(&srcu_ctl);
INIT_LIST_HEAD(&srcu_removed);
rcu_sync_torture_init();
}
static void srcu_torture_cleanup(void)
@ -377,27 +403,6 @@ static int srcu_torture_completed(void)
return srcu_batches_completed(&srcu_ctl);
}
static void srcu_torture_deferred_free(struct rcu_torture *p)
{
int i;
struct rcu_torture *rp;
struct rcu_torture *rp1;
synchronize_srcu(&srcu_ctl);
list_add(&p->rtort_free, &srcu_removed);
list_for_each_entry_safe(rp, rp1, &srcu_removed, rtort_free) {
i = rp->rtort_pipe_count;
if (i > RCU_TORTURE_PIPE_LEN)
i = RCU_TORTURE_PIPE_LEN;
atomic_inc(&rcu_torture_wcount[i]);
if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
rp->rtort_mbtest = 0;
list_del(&rp->rtort_free);
rcu_torture_free(rp);
}
}
}
static void srcu_torture_synchronize(void)
{
synchronize_srcu(&srcu_ctl);
@ -427,7 +432,7 @@ static struct rcu_torture_ops srcu_ops = {
.readdelay = srcu_read_delay,
.readunlock = srcu_torture_read_unlock,
.completed = srcu_torture_completed,
.deferredfree = srcu_torture_deferred_free,
.deferredfree = rcu_sync_torture_deferred_free,
.sync = srcu_torture_synchronize,
.stats = srcu_torture_stats,
.name = "srcu"