Bias the location of pages freed for min_free_kbytes in the same MAX_ORDER_NR_PAGES...

[sfrench/cifs-2.6.git] / block / ll_rw_blk.c

diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index cd9d2c5d91ae22664081e83136f9da4f3a9aae4c..a83823fcd74f3f90a42d8a470cad9947c5cdd56f 100644 (file)
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -1854,7 +1854,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 
        init_timer(&q->unplug_timer);
 
-       snprintf(q->kobj.name, KOBJ_NAME_LEN, "%s", "queue");
+       kobject_set_name(&q->kobj, "%s", "queue");
        q->kobj.ktype = &queue_ktype;
        kobject_init(&q->kobj);
 
@@ -3928,7 +3928,6 @@ queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
                        max_hw_sectors_kb = q->max_hw_sectors >> 1,
                        page_kb = 1 << (PAGE_CACHE_SHIFT - 10);
        ssize_t ret = queue_var_store(&max_sectors_kb, page, count);
-       int ra_kb;
 
        if (max_sectors_kb > max_hw_sectors_kb || max_sectors_kb < page_kb)
                return -EINVAL;
@@ -3937,14 +3936,6 @@ queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
         * values synchronously:
         */
        spin_lock_irq(q->queue_lock);
-       /*
-        * Trim readahead window as well, if necessary:
-        */
-       ra_kb = q->backing_dev_info.ra_pages << (PAGE_CACHE_SHIFT - 10);
-       if (ra_kb > max_sectors_kb)
-               q->backing_dev_info.ra_pages =
-                               max_sectors_kb >> (PAGE_CACHE_SHIFT - 10);
-
        q->max_sectors = max_sectors_kb << 1;
        spin_unlock_irq(q->queue_lock);