mm: remove all rcu head initializations
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From: KOSAKI Motohiro on 18 May 2010 21:30 Hi > Hello! > > Would you guys like to carry this patch, or should I push it up > -tip? If I don't hear otherwise from you, I will push it up -tip. > The INIT_RCU_HEAD() primitive is going away in favor of debugobjects. > > Thanx, Paul Personally, I don't think this patch can make major conflict. So, I guess -tip is best. Thanks. > > ------------------------------------------------------------------------ > > mm: remove all rcu head initializations > > Remove all rcu head inits. We don't care about the RCU head state before passing > it to call_rcu() anyway. Only leave the "on_stack" variants so debugobjects can > keep track of objects on stack. > > Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> > Signed-off-by: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com> > Cc: Christoph Lameter <cl(a)linux-foundation.org> > Cc: Pekka Enberg <penberg(a)cs.helsinki.fi> > Cc: Matt Mackall <mpm(a)selenic.com> > Cc: Andrew Morton <akpm(a)linux-foundation.org> > > diff --git a/mm/backing-dev.c b/mm/backing-dev.c > index 707d0dc..f03d8d6 100644 > --- a/mm/backing-dev.c > +++ b/mm/backing-dev.c > @@ -663,7 +663,6 @@ int bdi_init(struct backing_dev_info *bdi) > bdi->max_ratio = 100; > bdi->max_prop_frac = PROP_FRAC_BASE; > spin_lock_init(&bdi->wb_lock); > - INIT_RCU_HEAD(&bdi->rcu_head); > INIT_LIST_HEAD(&bdi->bdi_list); > INIT_LIST_HEAD(&bdi->wb_list); > INIT_LIST_HEAD(&bdi->work_list); > diff --git a/mm/slob.c b/mm/slob.c > index 837ebd6..6de238d 100644 > --- a/mm/slob.c > +++ b/mm/slob.c > @@ -647,7 +647,6 @@ void kmem_cache_free(struct kmem_cache *c, void *b) > if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) { > struct slob_rcu *slob_rcu; > slob_rcu = b + (c->size - sizeof(struct slob_rcu)); > - INIT_RCU_HEAD(&slob_rcu->head); > slob_rcu->size = c->size; > call_rcu(&slob_rcu->head, kmem_rcu_free); > } else { > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo(a)kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont(a)kvack.org"> email(a)kvack.org </a> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |