diff options
Diffstat (limited to 'block/ll_rw_blk.c')
| -rw-r--r-- | block/ll_rw_blk.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 5a19e2eb571..5b26af8597f 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -3539,11 +3539,17 @@ void put_io_context(struct io_context *ioc) BUG_ON(atomic_read(&ioc->refcount) == 0); if (atomic_dec_and_test(&ioc->refcount)) { + struct cfq_io_context *cic; + rcu_read_lock(); if (ioc->aic && ioc->aic->dtor) ioc->aic->dtor(ioc->aic); - if (ioc->cic && ioc->cic->dtor) - ioc->cic->dtor(ioc->cic); + if (ioc->cic_root.rb_node != NULL) { + struct rb_node *n = rb_first(&ioc->cic_root); + + cic = rb_entry(n, struct cfq_io_context, rb_node); + cic->dtor(ioc); + } rcu_read_unlock(); kmem_cache_free(iocontext_cachep, ioc); @@ -3556,6 +3562,7 @@ void exit_io_context(void) { unsigned long flags; struct io_context *ioc; + struct cfq_io_context *cic; local_irq_save(flags); task_lock(current); @@ -3567,9 +3574,11 @@ void exit_io_context(void) if (ioc->aic && ioc->aic->exit) ioc->aic->exit(ioc->aic); - if (ioc->cic && ioc->cic->exit) - ioc->cic->exit(ioc->cic); - + if (ioc->cic_root.rb_node != NULL) { + cic = rb_entry(rb_first(&ioc->cic_root), struct cfq_io_context, rb_node); + cic->exit(ioc); + } + put_io_context(ioc); } @@ -3598,7 +3607,7 @@ struct io_context *current_io_context(gfp_t gfp_flags) ret->last_waited = jiffies; /* doesn't matter... */ ret->nr_batch_requests = 0; /* because this is 0 */ ret->aic = NULL; - ret->cic = NULL; + ret->cic_root.rb_node = NULL; tsk->io_context = ret; } |