blkcg: change blkg reference counting to use percpu_ref

[sfrench/cifs-2.6.git] / block / blk-settings.c

diff --git a/block/blk-settings.c b/block/blk-settings.c
index ffd459969689df0821bf377d1c433f039d502de1..3abe831e92c8319a2dbbcb3a7023a8b4637c8269 100644 (file)
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -6,7 +6,7 @@
 #include <linux/init.h>
 #include <linux/bio.h>
 #include <linux/blkdev.h>
-#include <linux/bootmem.h>     /* for max_pfn/max_low_pfn */
+#include <linux/memblock.h>    /* for max_pfn/max_low_pfn */
 #include <linux/gcd.h>
 #include <linux/lcm.h>
 #include <linux/jiffies.h>
@@ -20,65 +20,12 @@ EXPORT_SYMBOL(blk_max_low_pfn);
 
 unsigned long blk_max_pfn;
 
-/**
- * blk_queue_prep_rq - set a prepare_request function for queue
- * @q:         queue
- * @pfn:       prepare_request function
- *
- * It's possible for a queue to register a prepare_request callback which
- * is invoked before the request is handed to the request_fn. The goal of
- * the function is to prepare a request for I/O, it can be used to build a
- * cdb from the request data for instance.
- *
- */
-void blk_queue_prep_rq(struct request_queue *q, prep_rq_fn *pfn)
-{
-       q->prep_rq_fn = pfn;
-}
-EXPORT_SYMBOL(blk_queue_prep_rq);
-
-/**
- * blk_queue_unprep_rq - set an unprepare_request function for queue
- * @q:         queue
- * @ufn:       unprepare_request function
- *
- * It's possible for a queue to register an unprepare_request callback
- * which is invoked before the request is finally completed. The goal
- * of the function is to deallocate any data that was allocated in the
- * prepare_request callback.
- *
- */
-void blk_queue_unprep_rq(struct request_queue *q, unprep_rq_fn *ufn)
-{
-       q->unprep_rq_fn = ufn;
-}
-EXPORT_SYMBOL(blk_queue_unprep_rq);
-
-void blk_queue_softirq_done(struct request_queue *q, softirq_done_fn *fn)
-{
-       q->softirq_done_fn = fn;
-}
-EXPORT_SYMBOL(blk_queue_softirq_done);
-
 void blk_queue_rq_timeout(struct request_queue *q, unsigned int timeout)
 {
        q->rq_timeout = timeout;
 }
 EXPORT_SYMBOL_GPL(blk_queue_rq_timeout);
 
-void blk_queue_rq_timed_out(struct request_queue *q, rq_timed_out_fn *fn)
-{
-       WARN_ON_ONCE(q->mq_ops);
-       q->rq_timed_out_fn = fn;
-}
-EXPORT_SYMBOL_GPL(blk_queue_rq_timed_out);
-
-void blk_queue_lld_busy(struct request_queue *q, lld_busy_fn *fn)
-{
-       q->lld_busy_fn = fn;
-}
-EXPORT_SYMBOL_GPL(blk_queue_lld_busy);
-
 /**
  * blk_set_default_limits - reset limits to default values
  * @lim:  the queue_limits structure to reset
@@ -169,8 +116,6 @@ void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn)
 
        q->make_request_fn = mfn;
        blk_queue_dma_alignment(q, 511);
-       blk_queue_congestion_threshold(q);
-       q->nr_batching = BLK_BATCH_REQ;
 
        blk_set_default_limits(&q->limits);
 }
@@ -889,16 +834,14 @@ EXPORT_SYMBOL(blk_set_queue_depth);
  */
 void blk_queue_write_cache(struct request_queue *q, bool wc, bool fua)
 {
-       spin_lock_irq(q->queue_lock);
        if (wc)
-               queue_flag_set(QUEUE_FLAG_WC, q);
+               blk_queue_flag_set(QUEUE_FLAG_WC, q);
        else
-               queue_flag_clear(QUEUE_FLAG_WC, q);
+               blk_queue_flag_clear(QUEUE_FLAG_WC, q);
        if (fua)
-               queue_flag_set(QUEUE_FLAG_FUA, q);
+               blk_queue_flag_set(QUEUE_FLAG_FUA, q);
        else
-               queue_flag_clear(QUEUE_FLAG_FUA, q);
-       spin_unlock_irq(q->queue_lock);
+               blk_queue_flag_clear(QUEUE_FLAG_FUA, q);
 
        wbt_set_write_cache(q, test_bit(QUEUE_FLAG_WC, &q->queue_flags));
 }