block: simplify I/O stat accounting

[safe/jmp/linux-2.6] / block / blk-sysfs.c

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index cac4e9f..3ff9bba 100644 (file)
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -209,14 +209,10 @@ static ssize_t queue_iostats_store(struct request_queue *q, const char *page,
        ssize_t ret = queue_var_store(&stats, page, count);
 
        spin_lock_irq(q->queue_lock);
-       elv_quiesce_start(q);
-
        if (stats)
                queue_flag_set(QUEUE_FLAG_IO_STAT, q);
        else
                queue_flag_clear(QUEUE_FLAG_IO_STAT, q);
-
-       elv_quiesce_end(q);
        spin_unlock_irq(q->queue_lock);
 
        return ret;