queue_max_sectors_store

Name:queue_max_sectors_store

Proto:static ssize_t queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)

Type:ssize_t

Parameter:

Type	Parameter	Name
struct request_queue *	q
const char *	page
size_t	count

224

max_hw_sectors_kb = queue_max_hw_sectors(q) >> 1 , page_kb = 1 << PAGE_SHIFT determines the page size - 10

227

ret = queue_var_store( & max_sectors_kb, page, count)

229

If ret < 0 Then Return ret

232

max_hw_sectors_kb = min_not_zero - return the minimum that is _not_ zero, unless both are zero*@x: value1*@y: value2(max_hw_sectors_kb, (unsignedlong)max_dev_sectors >> 1)

235

If max_sectors_kb > max_hw_sectors_kb || max_sectors_kb < page_kb Then Return -EINVAL

238

spin_lock_irq( & queue_lock)

239

max_sectors = max_sectors_kb << 1

240

max allowed IO size = max_sectors_kb >> PAGE_SHIFT determines the page size - 10

241

spin_unlock_irq( & queue_lock)

243

Return ret

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