{
if ((max_sectors << 9) < PAGE_CACHE_SIZE) {
max_sectors = 1 << (PAGE_CACHE_SHIFT - 9);
- printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
- max_sectors);
+ printk(KERN_INFO "%s: set to minimum %d\n",
+ __func__, max_sectors);
}
if (BLK_DEF_MAX_SECTORS > max_sectors)
{
if (!max_segments) {
max_segments = 1;
- printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
- max_segments);
+ printk(KERN_INFO "%s: set to minimum %d\n",
+ __func__, max_segments);
}
q->max_phys_segments = max_segments;
{
if (!max_segments) {
max_segments = 1;
- printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
- max_segments);
+ printk(KERN_INFO "%s: set to minimum %d\n",
+ __func__, max_segments);
}
q->max_hw_segments = max_segments;
{
if (max_size < PAGE_CACHE_SIZE) {
max_size = PAGE_CACHE_SIZE;
- printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
- max_size);
+ printk(KERN_INFO "%s: set to minimum %d\n",
+ __func__, max_size);
}
q->max_segment_size = max_size;
t->max_hw_segments = min(t->max_hw_segments, b->max_hw_segments);
t->max_segment_size = min(t->max_segment_size, b->max_segment_size);
t->hardsect_size = max(t->hardsect_size, b->hardsect_size);
- if (!test_bit(QUEUE_FLAG_CLUSTER, &b->queue_flags))
+ if (!t->queue_lock)
+ WARN_ON_ONCE(1);
+ else if (!test_bit(QUEUE_FLAG_CLUSTER, &b->queue_flags)) {
+ unsigned long flags;
+ spin_lock_irqsave(t->queue_lock, flags);
queue_flag_clear(QUEUE_FLAG_CLUSTER, t);
+ spin_unlock_irqrestore(t->queue_lock, flags);
+ }
}
EXPORT_SYMBOL(blk_queue_stack_limits);
* @q: the request queue for the device
* @mask: pad mask
*
- * Set pad mask. Direct IO requests are padded to the mask specified.
+ * Set dma pad mask.
*
- * Appending pad buffer to a request modifies ->data_len such that it
- * includes the pad buffer. The original requested data length can be
- * obtained using blk_rq_raw_data_len().
+ * Appending pad buffer to a request modifies the last entry of a
+ * scatter list such that it includes the pad buffer.
**/
void blk_queue_dma_pad(struct request_queue *q, unsigned int mask)
{
}
EXPORT_SYMBOL(blk_queue_dma_pad);
+/**
+ * blk_queue_update_dma_pad - update pad mask
+ * @q: the request queue for the device
+ * @mask: pad mask
+ *
+ * Update dma pad mask.
+ *
+ * Appending pad buffer to a request modifies the last entry of a
+ * scatter list such that it includes the pad buffer.
+ **/
+void blk_queue_update_dma_pad(struct request_queue *q, unsigned int mask)
+{
+ if (mask > q->dma_pad_mask)
+ q->dma_pad_mask = mask;
+}
+EXPORT_SYMBOL(blk_queue_update_dma_pad);
+
/**
* blk_queue_dma_drain - Set up a drain buffer for excess dma.
* @q: the request queue for the device
{
if (mask < PAGE_CACHE_SIZE - 1) {
mask = PAGE_CACHE_SIZE - 1;
- printk(KERN_INFO "%s: set to minimum %lx\n", __FUNCTION__,
- mask);
+ printk(KERN_INFO "%s: set to minimum %lx\n",
+ __func__, mask);
}
q->seg_boundary_mask = mask;