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| author | Josh Triplett <josht@us.ibm.com> | 2006-10-04 02:17:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-04 07:55:31 -0700 |
| commit | e3033736581f125ba5fd6c0760e0d430d54fb5c0 (patch) | |
| tree | f3158a2c544b79700dad5fb9fe8d09b134629faa /kernel/rcutorture.c | |
| parent | b772e1dd4b1e60a7a160f7bd4ea08e28394ceb54 (diff) | |
| download | lwn-e3033736581f125ba5fd6c0760e0d430d54fb5c0.tar.gz lwn-e3033736581f125ba5fd6c0760e0d430d54fb5c0.zip | |
[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>
Diffstat (limited to 'kernel/rcutorture.c')
| -rw-r--r-- | kernel/rcutorture.c | 53 |
1 files changed, 29 insertions, 24 deletions
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c index e0450210ce4d..6e2f0a8344c2 100644 --- a/kernel/rcutorture.c +++ b/kernel/rcutorture.c @@ -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" |