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block: Use accessor functions for queue limits

Browse source 
Convert all external users of queue limits to using wrapper functions
instead of poking the request queue variables directly.

Signed-off-by: Martin K. Petersen <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Martin K. Petersen 2009-05-22 17:17:50 -04:00 • committed by Jens Axboe
commit ae03bf639a
25 changed files with 147 additions and 97 deletions
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8
block/blk-sysfs.c
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@ -95,7 +95,7 @@ queue_ra_store(struct request_queue *q, const char *page, size_t count)
static ssize_t queue_max_sectors_show(struct request_queue *q, char *page)
{
int max_sectors_kb = q->max_sectors >> 1;
int max_sectors_kb = queue_max_sectors(q) >> 1;
return queue_var_show(max_sectors_kb, (page));
}
@ -109,7 +109,7 @@ static ssize_t
queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
{
unsigned long max_sectors_kb,
max_hw_sectors_kb = q->max_hw_sectors >> 1,
max_hw_sectors_kb = queue_max_hw_sectors(q) >> 1,
page_kb = 1 << (PAGE_CACHE_SHIFT - 10);
ssize_t ret = queue_var_store(&max_sectors_kb, page, count);
@ -117,7 +117,7 @@ queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
return -EINVAL;
spin_lock_irq(q->queue_lock);
q->max_sectors = max_sectors_kb << 1;
blk_queue_max_sectors(q, max_sectors_kb << 1);
spin_unlock_irq(q->queue_lock);
return ret;
@ -125,7 +125,7 @@ queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
static ssize_t queue_max_hw_sectors_show(struct request_queue *q, char *page)
{
int max_hw_sectors_kb = q->max_hw_sectors >> 1;
int max_hw_sectors_kb = queue_max_hw_sectors(q) >> 1;
return queue_var_show(max_hw_sectors_kb, (page));
}