Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  block: fix setting of max_segment_size and seg_boundary mask
  block: internal dequeue shouldn't start timer
  block: set disk->node_id before it's being used
  When block layer fails to map iov, it calls bio_unmap_user to undo
This commit is contained in:
Linus Torvalds 2008-12-03 16:45:56 -08:00
commit feaf3848a8
8 changed files with 37 additions and 19 deletions

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@ -161,7 +161,7 @@ static inline struct request *start_ordered(struct request_queue *q,
/*
* Prep proxy barrier request.
*/
blkdev_dequeue_request(rq);
elv_dequeue_request(q, rq);
q->orig_bar_rq = rq;
rq = &q->bar_rq;
blk_rq_init(q, rq);
@ -219,7 +219,7 @@ int blk_do_ordered(struct request_queue *q, struct request **rqp)
* This can happen when the queue switches to
* ORDERED_NONE while this request is on it.
*/
blkdev_dequeue_request(rq);
elv_dequeue_request(q, rq);
if (__blk_end_request(rq, -EOPNOTSUPP,
blk_rq_bytes(rq)))
BUG();

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@ -592,7 +592,7 @@ blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id)
1 << QUEUE_FLAG_STACKABLE);
q->queue_lock = lock;
blk_queue_segment_boundary(q, 0xffffffff);
blk_queue_segment_boundary(q, BLK_SEG_BOUNDARY_MASK);
blk_queue_make_request(q, __make_request);
blk_queue_max_segment_size(q, MAX_SEGMENT_SIZE);
@ -1636,6 +1636,28 @@ int blk_insert_cloned_request(struct request_queue *q, struct request *rq)
}
EXPORT_SYMBOL_GPL(blk_insert_cloned_request);
/**
* blkdev_dequeue_request - dequeue request and start timeout timer
* @req: request to dequeue
*
* Dequeue @req and start timeout timer on it. This hands off the
* request to the driver.
*
* Block internal functions which don't want to start timer should
* call elv_dequeue_request().
*/
void blkdev_dequeue_request(struct request *req)
{
elv_dequeue_request(req->q, req);
/*
* We are now handing the request to the hardware, add the
* timeout handler.
*/
blk_add_timer(req);
}
EXPORT_SYMBOL(blkdev_dequeue_request);
/**
* __end_that_request_first - end I/O on a request
* @req: the request being processed
@ -1774,7 +1796,7 @@ static void end_that_request_last(struct request *req, int error)
blk_queue_end_tag(req->q, req);
if (blk_queued_rq(req))
blkdev_dequeue_request(req);
elv_dequeue_request(req->q, req);
if (unlikely(laptop_mode) && blk_fs_request(req))
laptop_io_completion();

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@ -224,7 +224,7 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
*/
bio_get(bio);
bio_endio(bio, 0);
bio_unmap_user(bio);
__blk_rq_unmap_user(bio);
return -EINVAL;
}

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@ -125,6 +125,9 @@ void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn)
q->nr_requests = BLKDEV_MAX_RQ;
blk_queue_max_phys_segments(q, MAX_PHYS_SEGMENTS);
blk_queue_max_hw_segments(q, MAX_HW_SEGMENTS);
blk_queue_segment_boundary(q, BLK_SEG_BOUNDARY_MASK);
blk_queue_max_segment_size(q, MAX_SEGMENT_SIZE);
q->make_request_fn = mfn;
q->backing_dev_info.ra_pages =
(VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
@ -314,6 +317,7 @@ void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b)
/* zero is "infinity" */
t->max_sectors = min_not_zero(t->max_sectors, b->max_sectors);
t->max_hw_sectors = min_not_zero(t->max_hw_sectors, b->max_hw_sectors);
t->seg_boundary_mask = min_not_zero(t->seg_boundary_mask, b->seg_boundary_mask);
t->max_phys_segments = min(t->max_phys_segments, b->max_phys_segments);
t->max_hw_segments = min(t->max_hw_segments, b->max_hw_segments);

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@ -844,14 +844,7 @@ void elv_dequeue_request(struct request_queue *q, struct request *rq)
*/
if (blk_account_rq(rq))
q->in_flight++;
/*
* We are now handing the request to the hardware, add the
* timeout handler.
*/
blk_add_timer(rq);
}
EXPORT_SYMBOL(elv_dequeue_request);
int elv_queue_empty(struct request_queue *q)
{

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@ -1102,6 +1102,7 @@ struct gendisk *alloc_disk_node(int minors, int node_id)
kfree(disk);
return NULL;
}
disk->node_id = node_id;
if (disk_expand_part_tbl(disk, 0)) {
free_part_stats(&disk->part0);
kfree(disk);
@ -1116,7 +1117,6 @@ struct gendisk *alloc_disk_node(int minors, int node_id)
device_initialize(disk_to_dev(disk));
INIT_WORK(&disk->async_notify,
media_change_notify_thread);
disk->node_id = node_id;
}
return disk;
}

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@ -668,7 +668,7 @@ static void check_for_valid_limits(struct io_restrictions *rs)
if (!rs->max_segment_size)
rs->max_segment_size = MAX_SEGMENT_SIZE;
if (!rs->seg_boundary_mask)
rs->seg_boundary_mask = -1;
rs->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK;
if (!rs->bounce_pfn)
rs->bounce_pfn = -1;
}

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@ -786,6 +786,8 @@ static inline void blk_run_address_space(struct address_space *mapping)
blk_run_backing_dev(mapping->backing_dev_info, NULL);
}
extern void blkdev_dequeue_request(struct request *req);
/*
* blk_end_request() and friends.
* __blk_end_request() and end_request() must be called with
@ -820,11 +822,6 @@ extern void blk_update_request(struct request *rq, int error,
extern unsigned int blk_rq_bytes(struct request *rq);
extern unsigned int blk_rq_cur_bytes(struct request *rq);
static inline void blkdev_dequeue_request(struct request *req)
{
elv_dequeue_request(req->q, req);
}
/*
* Access functions for manipulating queue properties
*/
@ -921,6 +918,8 @@ extern void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter);
#define MAX_SEGMENT_SIZE 65536
#define BLK_SEG_BOUNDARY_MASK 0xFFFFFFFFUL
#define blkdev_entry_to_request(entry) list_entry((entry), struct request, queuelist)
static inline int queue_hardsect_size(struct request_queue *q)