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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>
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b772e1dd4b
commit
e303373658
1 changed files with 29 additions and 24 deletions
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@ -117,6 +117,7 @@ static atomic_t n_rcu_torture_alloc_fail;
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static atomic_t n_rcu_torture_free;
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static atomic_t n_rcu_torture_mberror;
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static atomic_t n_rcu_torture_error;
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static struct list_head rcu_torture_removed;
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/*
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* Allocate an element from the rcu_tortures pool.
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@ -270,6 +271,32 @@ static struct rcu_torture_ops rcu_ops = {
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.name = "rcu"
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};
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static void rcu_sync_torture_deferred_free(struct rcu_torture *p)
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{
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int i;
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struct rcu_torture *rp;
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struct rcu_torture *rp1;
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cur_ops->sync();
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list_add(&p->rtort_free, &rcu_torture_removed);
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list_for_each_entry_safe(rp, rp1, &rcu_torture_removed, rtort_free) {
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i = rp->rtort_pipe_count;
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if (i > RCU_TORTURE_PIPE_LEN)
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i = RCU_TORTURE_PIPE_LEN;
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atomic_inc(&rcu_torture_wcount[i]);
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if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
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rp->rtort_mbtest = 0;
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list_del(&rp->rtort_free);
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rcu_torture_free(rp);
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}
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}
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}
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static void rcu_sync_torture_init(void)
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{
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INIT_LIST_HEAD(&rcu_torture_removed);
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}
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/*
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* Definitions for rcu_bh torture testing.
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*/
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@ -335,12 +362,11 @@ static struct rcu_torture_ops rcu_bh_ops = {
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*/
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static struct srcu_struct srcu_ctl;
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static struct list_head srcu_removed;
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static void srcu_torture_init(void)
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{
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init_srcu_struct(&srcu_ctl);
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INIT_LIST_HEAD(&srcu_removed);
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rcu_sync_torture_init();
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}
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static void srcu_torture_cleanup(void)
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@ -377,27 +403,6 @@ static int srcu_torture_completed(void)
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return srcu_batches_completed(&srcu_ctl);
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}
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static void srcu_torture_deferred_free(struct rcu_torture *p)
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{
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int i;
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struct rcu_torture *rp;
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struct rcu_torture *rp1;
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synchronize_srcu(&srcu_ctl);
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list_add(&p->rtort_free, &srcu_removed);
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list_for_each_entry_safe(rp, rp1, &srcu_removed, rtort_free) {
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i = rp->rtort_pipe_count;
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if (i > RCU_TORTURE_PIPE_LEN)
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i = RCU_TORTURE_PIPE_LEN;
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atomic_inc(&rcu_torture_wcount[i]);
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if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
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rp->rtort_mbtest = 0;
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list_del(&rp->rtort_free);
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rcu_torture_free(rp);
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}
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}
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}
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static void srcu_torture_synchronize(void)
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{
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synchronize_srcu(&srcu_ctl);
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@ -427,7 +432,7 @@ static struct rcu_torture_ops srcu_ops = {
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.readdelay = srcu_read_delay,
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.readunlock = srcu_torture_read_unlock,
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.completed = srcu_torture_completed,
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.deferredfree = srcu_torture_deferred_free,
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.deferredfree = rcu_sync_torture_deferred_free,
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.sync = srcu_torture_synchronize,
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.stats = srcu_torture_stats,
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.name = "srcu"
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