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authorPaul Mundt <lethal@linux-sh.org>2008-10-20 11:17:52 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-10-20 11:17:52 +0900
commit4cb40f795af36b3deb743f6ccf6c3fd542c61c8d (patch)
treedb3d7519932549bf528f5b8e4cb8350356cd544d /block/blk-settings.c
parent79ed2a9216dd3cc35c4f2c5dbaddadb195af83ac (diff)
parent0cfd81031a26717fe14380d18275f8e217571615 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: Documentation/kernel-parameters.txt arch/sh/include/asm/elf.h
Diffstat (limited to 'block/blk-settings.c')
-rw-r--r--block/blk-settings.c45
1 files changed, 39 insertions, 6 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c
index dfc77012843..41392fbe19f 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -33,6 +33,23 @@ void blk_queue_prep_rq(struct request_queue *q, prep_rq_fn *pfn)
EXPORT_SYMBOL(blk_queue_prep_rq);
/**
+ * blk_queue_set_discard - set a discard_sectors function for queue
+ * @q: queue
+ * @dfn: prepare_discard function
+ *
+ * It's possible for a queue to register a discard callback which is used
+ * to transform a discard request into the appropriate type for the
+ * hardware. If none is registered, then discard requests are failed
+ * with %EOPNOTSUPP.
+ *
+ */
+void blk_queue_set_discard(struct request_queue *q, prepare_discard_fn *dfn)
+{
+ q->prepare_discard_fn = dfn;
+}
+EXPORT_SYMBOL(blk_queue_set_discard);
+
+/**
* blk_queue_merge_bvec - set a merge_bvec function for queue
* @q: queue
* @mbfn: merge_bvec_fn
@@ -60,6 +77,24 @@ void blk_queue_softirq_done(struct request_queue *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)
+{
+ 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_queue_make_request - define an alternate make_request function for a device
* @q: the request queue for the device to be affected
@@ -106,8 +141,6 @@ void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn)
if (q->unplug_delay == 0)
q->unplug_delay = 1;
- INIT_WORK(&q->unplug_work, blk_unplug_work);
-
q->unplug_timer.function = blk_unplug_timeout;
q->unplug_timer.data = (unsigned long)q;
@@ -127,7 +160,7 @@ EXPORT_SYMBOL(blk_queue_make_request);
* Different hardware can have different requirements as to what pages
* it can do I/O directly to. A low level driver can call
* blk_queue_bounce_limit to have lower memory pages allocated as bounce
- * buffers for doing I/O to pages residing above @page.
+ * buffers for doing I/O to pages residing above @dma_addr.
**/
void blk_queue_bounce_limit(struct request_queue *q, u64 dma_addr)
{
@@ -212,7 +245,7 @@ EXPORT_SYMBOL(blk_queue_max_phys_segments);
* Description:
* Enables a low level driver to set an upper limit on the number of
* hw data segments in a request. This would be the largest number of
- * address/length pairs the host adapter can actually give as once
+ * address/length pairs the host adapter can actually give at once
* to the device.
**/
void blk_queue_max_hw_segments(struct request_queue *q,
@@ -393,7 +426,7 @@ EXPORT_SYMBOL(blk_queue_segment_boundary);
* @mask: alignment mask
*
* description:
- * set required memory and length aligment for direct dma transactions.
+ * set required memory and length alignment for direct dma transactions.
* this is used when buiding direct io requests for the queue.
*
**/
@@ -409,7 +442,7 @@ EXPORT_SYMBOL(blk_queue_dma_alignment);
* @mask: alignment mask
*
* description:
- * update required memory and length aligment for direct dma transactions.
+ * update required memory and length alignment for direct dma transactions.
* If the requested alignment is larger than the current alignment, then
* the current queue alignment is updated to the new value, otherwise it
* is left alone. The design of this is to allow multiple objects