Merge branch 'for-2.6.34-next' into for-2.6.34
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 5ff5546..c1ff690 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -747,7 +747,7 @@
ubd_dev->fd = fd;
if(ubd_dev->cow.file != NULL){
- blk_queue_max_sectors(ubd_dev->queue, 8 * sizeof(long));
+ blk_queue_max_hw_sectors(ubd_dev->queue, 8 * sizeof(long));
err = -ENOMEM;
ubd_dev->cow.bitmap = vmalloc(ubd_dev->cow.bitmap_len);
@@ -849,7 +849,7 @@
}
ubd_dev->queue->queuedata = ubd_dev;
- blk_queue_max_hw_segments(ubd_dev->queue, MAX_SG);
+ blk_queue_max_segments(ubd_dev->queue, MAX_SG);
err = ubd_disk_register(UBD_MAJOR, ubd_dev->size, n, &ubd_gendisk[n]);
if(err){
*error_out = "Failed to register device";
diff --git a/block/blk-core.c b/block/blk-core.c
index 36c0dee..9fe174d 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1614,8 +1614,7 @@
* limitation.
*/
blk_recalc_rq_segments(rq);
- if (rq->nr_phys_segments > queue_max_phys_segments(q) ||
- rq->nr_phys_segments > queue_max_hw_segments(q)) {
+ if (rq->nr_phys_segments > queue_max_segments(q)) {
printk(KERN_ERR "%s: over max segments limit.\n", __func__);
return -EIO;
}
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 99cb5cf..5e7dc99 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -206,8 +206,7 @@
{
int nr_phys_segs = bio_phys_segments(q, bio);
- if (req->nr_phys_segments + nr_phys_segs > queue_max_hw_segments(q) ||
- req->nr_phys_segments + nr_phys_segs > queue_max_phys_segments(q)) {
+ if (req->nr_phys_segments + nr_phys_segs > queue_max_segments(q)) {
req->cmd_flags |= REQ_NOMERGE;
if (req == q->last_merge)
q->last_merge = NULL;
@@ -300,10 +299,7 @@
total_phys_segments--;
}
- if (total_phys_segments > queue_max_phys_segments(q))
- return 0;
-
- if (total_phys_segments > queue_max_hw_segments(q))
+ if (total_phys_segments > queue_max_segments(q))
return 0;
/* Merge is OK... */
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 78549c7..31e7a93 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -91,10 +91,9 @@
*/
void blk_set_default_limits(struct queue_limits *lim)
{
- lim->max_phys_segments = MAX_PHYS_SEGMENTS;
- lim->max_hw_segments = MAX_HW_SEGMENTS;
+ lim->max_segments = BLK_MAX_SEGMENTS;
lim->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK;
- lim->max_segment_size = MAX_SEGMENT_SIZE;
+ lim->max_segment_size = BLK_MAX_SEGMENT_SIZE;
lim->max_sectors = BLK_DEF_MAX_SECTORS;
lim->max_hw_sectors = INT_MAX;
lim->max_discard_sectors = 0;
@@ -154,7 +153,7 @@
q->unplug_timer.data = (unsigned long)q;
blk_set_default_limits(&q->limits);
- blk_queue_max_sectors(q, SAFE_MAX_SECTORS);
+ blk_queue_max_hw_sectors(q, BLK_SAFE_MAX_SECTORS);
/*
* If the caller didn't supply a lock, fall back to our embedded
@@ -210,37 +209,32 @@
EXPORT_SYMBOL(blk_queue_bounce_limit);
/**
- * blk_queue_max_sectors - set max sectors for a request for this queue
+ * blk_queue_max_hw_sectors - set max sectors for a request for this queue
* @q: the request queue for the device
- * @max_sectors: max sectors in the usual 512b unit
+ * @max_hw_sectors: max hardware sectors in the usual 512b unit
*
* Description:
- * Enables a low level driver to set an upper limit on the size of
- * received requests.
+ * Enables a low level driver to set a hard upper limit,
+ * max_hw_sectors, on the size of requests. max_hw_sectors is set by
+ * the device driver based upon the combined capabilities of I/O
+ * controller and storage device.
+ *
+ * max_sectors is a soft limit imposed by the block layer for
+ * filesystem type requests. This value can be overridden on a
+ * per-device basis in /sys/block/<device>/queue/max_sectors_kb.
+ * The soft limit can not exceed max_hw_sectors.
**/
-void blk_queue_max_sectors(struct request_queue *q, unsigned int max_sectors)
+void blk_queue_max_hw_sectors(struct request_queue *q, unsigned int max_hw_sectors)
{
- if ((max_sectors << 9) < PAGE_CACHE_SIZE) {
- max_sectors = 1 << (PAGE_CACHE_SHIFT - 9);
+ if ((max_hw_sectors << 9) < PAGE_CACHE_SIZE) {
+ max_hw_sectors = 1 << (PAGE_CACHE_SHIFT - 9);
printk(KERN_INFO "%s: set to minimum %d\n",
- __func__, max_sectors);
+ __func__, max_hw_sectors);
}
- if (BLK_DEF_MAX_SECTORS > max_sectors)
- q->limits.max_hw_sectors = q->limits.max_sectors = max_sectors;
- else {
- q->limits.max_sectors = BLK_DEF_MAX_SECTORS;
- q->limits.max_hw_sectors = max_sectors;
- }
-}
-EXPORT_SYMBOL(blk_queue_max_sectors);
-
-void blk_queue_max_hw_sectors(struct request_queue *q, unsigned int max_sectors)
-{
- if (BLK_DEF_MAX_SECTORS > max_sectors)
- q->limits.max_hw_sectors = BLK_DEF_MAX_SECTORS;
- else
- q->limits.max_hw_sectors = max_sectors;
+ q->limits.max_hw_sectors = max_hw_sectors;
+ q->limits.max_sectors = min_t(unsigned int, max_hw_sectors,
+ BLK_DEF_MAX_SECTORS);
}
EXPORT_SYMBOL(blk_queue_max_hw_sectors);
@@ -257,17 +251,15 @@
EXPORT_SYMBOL(blk_queue_max_discard_sectors);
/**
- * blk_queue_max_phys_segments - set max phys segments for a request for this queue
+ * blk_queue_max_segments - set max hw segments for a request for this queue
* @q: the request queue for the device
* @max_segments: max number of segments
*
* Description:
* Enables a low level driver to set an upper limit on the number of
- * physical data segments in a request. This would be the largest sized
- * scatter list the driver could handle.
+ * hw data segments in a request.
**/
-void blk_queue_max_phys_segments(struct request_queue *q,
- unsigned short max_segments)
+void blk_queue_max_segments(struct request_queue *q, unsigned short max_segments)
{
if (!max_segments) {
max_segments = 1;
@@ -275,33 +267,9 @@
__func__, max_segments);
}
- q->limits.max_phys_segments = max_segments;
+ q->limits.max_segments = max_segments;
}
-EXPORT_SYMBOL(blk_queue_max_phys_segments);
-
-/**
- * blk_queue_max_hw_segments - set max hw segments for a request for this queue
- * @q: the request queue for the device
- * @max_segments: max number of 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 at once
- * to the device.
- **/
-void blk_queue_max_hw_segments(struct request_queue *q,
- unsigned short max_segments)
-{
- if (!max_segments) {
- max_segments = 1;
- printk(KERN_INFO "%s: set to minimum %d\n",
- __func__, max_segments);
- }
-
- q->limits.max_hw_segments = max_segments;
-}
-EXPORT_SYMBOL(blk_queue_max_hw_segments);
+EXPORT_SYMBOL(blk_queue_max_segments);
/**
* blk_queue_max_segment_size - set max segment size for blk_rq_map_sg
@@ -536,11 +504,7 @@
t->seg_boundary_mask = min_not_zero(t->seg_boundary_mask,
b->seg_boundary_mask);
- t->max_phys_segments = min_not_zero(t->max_phys_segments,
- b->max_phys_segments);
-
- t->max_hw_segments = min_not_zero(t->max_hw_segments,
- b->max_hw_segments);
+ t->max_segments = min_not_zero(t->max_segments, b->max_segments);
t->max_segment_size = min_not_zero(t->max_segment_size,
b->max_segment_size);
@@ -744,22 +708,19 @@
* does is adjust the queue so that the buf is always appended
* silently to the scatterlist.
*
- * Note: This routine adjusts max_hw_segments to make room for
- * appending the drain buffer. If you call
- * blk_queue_max_hw_segments() or blk_queue_max_phys_segments() after
- * calling this routine, you must set the limit to one fewer than your
- * device can support otherwise there won't be room for the drain
- * buffer.
+ * Note: This routine adjusts max_hw_segments to make room for appending
+ * the drain buffer. If you call blk_queue_max_segments() after calling
+ * this routine, you must set the limit to one fewer than your device
+ * can support otherwise there won't be room for the drain buffer.
*/
int blk_queue_dma_drain(struct request_queue *q,
dma_drain_needed_fn *dma_drain_needed,
void *buf, unsigned int size)
{
- if (queue_max_hw_segments(q) < 2 || queue_max_phys_segments(q) < 2)
+ if (queue_max_segments(q) < 2)
return -EINVAL;
/* make room for appending the drain */
- blk_queue_max_hw_segments(q, queue_max_hw_segments(q) - 1);
- blk_queue_max_phys_segments(q, queue_max_phys_segments(q) - 1);
+ blk_queue_max_segments(q, queue_max_segments(q) - 1);
q->dma_drain_needed = dma_drain_needed;
q->dma_drain_buffer = buf;
q->dma_drain_size = size;
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index d096fbc..bea003a 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1097,7 +1097,7 @@
dev->flags |= ATA_DFLAG_NO_UNLOAD;
/* configure max sectors */
- blk_queue_max_sectors(sdev->request_queue, dev->max_sectors);
+ blk_queue_max_hw_sectors(sdev->request_queue, dev->max_sectors);
if (dev->class == ATA_DEV_ATAPI) {
struct request_queue *q = sdev->request_queue;
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 0c82d33..684fe04 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -772,7 +772,7 @@
}
blk_queue_segment_boundary(sdev->request_queue, segment_boundary);
- blk_queue_max_hw_segments(sdev->request_queue, sg_tablesize);
+ blk_queue_max_segments(sdev->request_queue, sg_tablesize);
ata_port_printk(ap, KERN_INFO,
"DMA mask 0x%llX, segment boundary 0x%lX, hw segs %hu\n",
(unsigned long long)*ap->host->dev->dma_mask,
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 7412b5d..459f1bc 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -2534,8 +2534,8 @@
blk_queue_bounce_limit(RequestQueue, Controller->BounceBufferLimit);
RequestQueue->queuedata = Controller;
blk_queue_max_hw_segments(RequestQueue, Controller->DriverScatterGatherLimit);
- blk_queue_max_phys_segments(RequestQueue, Controller->DriverScatterGatherLimit);
- blk_queue_max_sectors(RequestQueue, Controller->MaxBlocksPerCommand);
+ blk_queue_max_segments(RequestQueue, Controller->DriverScatterGatherLimit);
+ blk_queue_max_hw_sectors(RequestQueue, Controller->MaxBlocksPerCommand);
disk->queue = RequestQueue;
sprintf(disk->disk_name, "rd/c%dd%d", Controller->ControllerNumber, n);
disk->major = MajorNumber;
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 4f68843..c6ddeac 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -434,7 +434,7 @@
goto out_free_dev;
blk_queue_make_request(brd->brd_queue, brd_make_request);
blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG, NULL);
- blk_queue_max_sectors(brd->brd_queue, 1024);
+ blk_queue_max_hw_sectors(brd->brd_queue, 1024);
blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY);
disk = brd->brd_disk = alloc_disk(1 << part_shift);
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 86acdca5..a29e694 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -1797,12 +1797,9 @@
blk_queue_bounce_limit(disk->queue, h->pdev->dma_mask);
/* This is a hardware imposed limit. */
- blk_queue_max_hw_segments(disk->queue, h->maxsgentries);
+ blk_queue_max_segments(disk->queue, h->maxsgentries);
- /* This is a limit in the driver and could be eliminated. */
- blk_queue_max_phys_segments(disk->queue, h->maxsgentries);
-
- blk_queue_max_sectors(disk->queue, h->cciss_max_sectors);
+ blk_queue_max_hw_sectors(disk->queue, h->cciss_max_sectors);
blk_queue_softirq_done(disk->queue, cciss_softirq_done);
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 6422651..91d1163 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -448,11 +448,8 @@
blk_queue_bounce_limit(q, hba[i]->pci_dev->dma_mask);
/* This is a hardware imposed limit. */
- blk_queue_max_hw_segments(q, SG_MAX);
+ blk_queue_max_segments(q, SG_MAX);
- /* This is a driver limit and could be eliminated. */
- blk_queue_max_phys_segments(q, SG_MAX);
-
init_timer(&hba[i]->timer);
hba[i]->timer.expires = jiffies + IDA_TIMER;
hba[i]->timer.data = (unsigned long)hba[i];
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 1292e06..4df3b40 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -709,9 +709,8 @@
max_seg_s = min(queue_max_sectors(b) * queue_logical_block_size(b), max_seg_s);
- blk_queue_max_sectors(q, max_seg_s >> 9);
- blk_queue_max_phys_segments(q, max_segments ? max_segments : MAX_PHYS_SEGMENTS);
- blk_queue_max_hw_segments(q, max_segments ? max_segments : MAX_HW_SEGMENTS);
+ blk_queue_max_hw_sectors(q, max_seg_s >> 9);
+ blk_queue_max_segments(q, max_segments ? max_segments : BLK_MAX_SEGMENTS);
blk_queue_max_segment_size(q, max_seg_s);
blk_queue_logical_block_size(q, 512);
blk_queue_segment_boundary(q, PAGE_SIZE-1);
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 3266b4f..b9b1170 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4234,7 +4234,7 @@
err = -ENOMEM;
goto out_unreg_driver;
}
- blk_queue_max_sectors(floppy_queue, 64);
+ blk_queue_max_hw_sectors(floppy_queue, 64);
blk_register_region(MKDEV(FLOPPY_MAJOR, 0), 256, THIS_MODULE,
floppy_find, NULL, NULL);
diff --git a/drivers/block/hd.c b/drivers/block/hd.c
index d5cdce0..5116c65 100644
--- a/drivers/block/hd.c
+++ b/drivers/block/hd.c
@@ -719,7 +719,7 @@
return -ENOMEM;
}
- blk_queue_max_sectors(hd_queue, 255);
+ blk_queue_max_hw_sectors(hd_queue, 255);
init_timer(&device_timer);
device_timer.function = hd_times_out;
blk_queue_logical_block_size(hd_queue, 512);
diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index 02b2583..5416c9a 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -980,7 +980,7 @@
__func__, __LINE__);
goto probe_err_6;
}
- blk_queue_max_sectors(host->breq, MG_MAX_SECTS);
+ blk_queue_max_hw_sectors(host->breq, MG_MAX_SECTS);
blk_queue_logical_block_size(host->breq, MG_SECTOR_SIZE);
init_timer(&host->timer);
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index 569e39e..e712cd5 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -906,7 +906,7 @@
if (!pd_queue)
goto out1;
- blk_queue_max_sectors(pd_queue, cluster);
+ blk_queue_max_hw_sectors(pd_queue, cluster);
if (register_blkdev(major, name))
goto out2;
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index ea54ea3..ddb4f9a 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -956,8 +956,7 @@
return -ENOMEM;
}
- blk_queue_max_phys_segments(pf_queue, cluster);
- blk_queue_max_hw_segments(pf_queue, cluster);
+ blk_queue_max_segments(pf_queue, cluster);
for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++) {
struct gendisk *disk = pf->disk;
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 7cd2973..b72935b 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -950,14 +950,14 @@
static int pkt_set_segment_merging(struct pktcdvd_device *pd, struct request_queue *q)
{
if ((pd->settings.size << 9) / CD_FRAMESIZE
- <= queue_max_phys_segments(q)) {
+ <= queue_max_segments(q)) {
/*
* The cdrom device can handle one segment/frame
*/
clear_bit(PACKET_MERGE_SEGS, &pd->flags);
return 0;
} else if ((pd->settings.size << 9) / PAGE_SIZE
- <= queue_max_phys_segments(q)) {
+ <= queue_max_segments(q)) {
/*
* We can handle this case at the expense of some extra memory
* copies during write operations
@@ -2312,7 +2312,7 @@
* even if the size is a multiple of the packet size.
*/
spin_lock_irq(q->queue_lock);
- blk_queue_max_sectors(q, pd->settings.size);
+ blk_queue_max_hw_sectors(q, pd->settings.size);
spin_unlock_irq(q->queue_lock);
set_bit(PACKET_WRITABLE, &pd->flags);
} else {
@@ -2613,7 +2613,7 @@
blk_queue_make_request(q, pkt_make_request);
blk_queue_logical_block_size(q, CD_FRAMESIZE);
- blk_queue_max_sectors(q, PACKET_MAX_SECTORS);
+ blk_queue_max_hw_sectors(q, PACKET_MAX_SECTORS);
blk_queue_merge_bvec(q, pkt_merge_bvec);
q->queuedata = pd;
}
diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index 03a130d..bc95469 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -474,7 +474,7 @@
blk_queue_bounce_limit(queue, BLK_BOUNCE_HIGH);
- blk_queue_max_sectors(queue, dev->bounce_size >> 9);
+ blk_queue_max_hw_sectors(queue, dev->bounce_size >> 9);
blk_queue_segment_boundary(queue, -1UL);
blk_queue_dma_alignment(queue, dev->blk_size-1);
blk_queue_logical_block_size(queue, dev->blk_size);
@@ -482,8 +482,7 @@
blk_queue_ordered(queue, QUEUE_ORDERED_DRAIN_FLUSH,
ps3disk_prepare_flush);
- blk_queue_max_phys_segments(queue, -1);
- blk_queue_max_hw_segments(queue, -1);
+ blk_queue_max_segments(queue, -1);
blk_queue_max_segment_size(queue, dev->bounce_size);
gendisk = alloc_disk(PS3DISK_MINORS);
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index 1fb6c31..83ebb39 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -751,10 +751,9 @@
priv->queue = queue;
queue->queuedata = dev;
blk_queue_make_request(queue, ps3vram_make_request);
- blk_queue_max_phys_segments(queue, MAX_PHYS_SEGMENTS);
- blk_queue_max_hw_segments(queue, MAX_HW_SEGMENTS);
- blk_queue_max_segment_size(queue, MAX_SEGMENT_SIZE);
- blk_queue_max_sectors(queue, SAFE_MAX_SECTORS);
+ blk_queue_max_segments(queue, BLK_MAX_HW_SEGMENTS);
+ blk_queue_max_segment_size(queue, BLK_MAX_SEGMENT_SIZE);
+ blk_queue_max_hw_sectors(queue, BLK_SAFE_MAX_SECTORS);
gendisk = alloc_disk(1);
if (!gendisk) {
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 411f064..48e8fee 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -691,9 +691,8 @@
port->disk = g;
- blk_queue_max_hw_segments(q, port->ring_cookies);
- blk_queue_max_phys_segments(q, port->ring_cookies);
- blk_queue_max_sectors(q, port->max_xfer_size);
+ blk_queue_max_segments(q, port->ring_cookies);
+ blk_queue_max_hw_sectors(q, port->max_xfer_size);
g->major = vdc_major;
g->first_minor = port->vio.vdev->dev_no << PARTITION_SHIFT;
strcpy(g->disk_name, port->disk_name);
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 7bd7b2f..b70f0fc 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -1518,8 +1518,7 @@
break;
}
disk->queue = q;
- blk_queue_max_hw_segments(q, CARM_MAX_REQ_SG);
- blk_queue_max_phys_segments(q, CARM_MAX_REQ_SG);
+ blk_queue_max_segments(q, CARM_MAX_REQ_SG);
blk_queue_segment_boundary(q, CARM_SG_BOUNDARY);
q->queuedata = port;
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index d86d135..2e88983 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -2320,10 +2320,9 @@
disk->queue = q;
blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);
- blk_queue_max_hw_segments(q, UB_MAX_REQ_SG);
- blk_queue_max_phys_segments(q, UB_MAX_REQ_SG);
+ blk_queue_max_segments(q, UB_MAX_REQ_SG);
blk_queue_segment_boundary(q, 0xffffffff); /* Dubious. */
- blk_queue_max_sectors(q, UB_MAX_SECTORS);
+ blk_queue_max_hw_sectors(q, UB_MAX_SECTORS);
blk_queue_logical_block_size(q, lun->capacity.bsize);
lun->disk = disk;
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index a8c8b56..c12b313 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -471,9 +471,8 @@
}
d->disk = g;
- blk_queue_max_hw_segments(q, VIOMAXBLOCKDMA);
- blk_queue_max_phys_segments(q, VIOMAXBLOCKDMA);
- blk_queue_max_sectors(q, VIODASD_MAXSECTORS);
+ blk_queue_max_segments(q, VIOMAXBLOCKDMA);
+ blk_queue_max_hw_sectors(q, VIODASD_MAXSECTORS);
g->major = VIODASD_MAJOR;
g->first_minor = dev_no << PARTITION_SHIFT;
if (dev_no >= 26)
diff --git a/drivers/block/xd.c b/drivers/block/xd.c
index d1fd032..1a325fb 100644
--- a/drivers/block/xd.c
+++ b/drivers/block/xd.c
@@ -242,7 +242,7 @@
}
/* xd_maxsectors depends on controller - so set after detection */
- blk_queue_max_sectors(xd_queue, xd_maxsectors);
+ blk_queue_max_hw_sectors(xd_queue, xd_maxsectors);
for (i = 0; i < xd_drives; i++)
add_disk(xd_gendisk[i]);
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index a84702d..9c09694 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -346,15 +346,14 @@
/* Hard sector size and max sectors impersonate the equiv. hardware. */
blk_queue_logical_block_size(rq, sector_size);
- blk_queue_max_sectors(rq, 512);
+ blk_queue_max_hw_sectors(rq, 512);
/* Each segment in a request is up to an aligned page in size. */
blk_queue_segment_boundary(rq, PAGE_SIZE - 1);
blk_queue_max_segment_size(rq, PAGE_SIZE);
/* Ensure a merged request will fit in a single I/O ring slot. */
- blk_queue_max_phys_segments(rq, BLKIF_MAX_SEGMENTS_PER_REQUEST);
- blk_queue_max_hw_segments(rq, BLKIF_MAX_SEGMENTS_PER_REQUEST);
+ blk_queue_max_segments(rq, BLKIF_MAX_SEGMENTS_PER_REQUEST);
/* Make sure buffer addresses are sector-aligned. */
blk_queue_dma_alignment(rq, 511);
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index e789e6c..03c71f7 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -741,7 +741,7 @@
{
blk_queue_logical_block_size(gd.gdrom_rq, GDROM_HARD_SECTOR);
/* using DMA so memory will need to be contiguous */
- blk_queue_max_hw_segments(gd.gdrom_rq, 1);
+ blk_queue_max_segments(gd.gdrom_rq, 1);
/* set a large max size to get most from DMA */
blk_queue_max_segment_size(gd.gdrom_rq, 0x40000);
gd.disk->queue = gd.gdrom_rq;
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index 57ca69e..cc435be 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -616,9 +616,8 @@
gendisk->first_minor = deviceno;
strncpy(gendisk->disk_name, c->name,
sizeof(gendisk->disk_name));
- blk_queue_max_hw_segments(q, 1);
- blk_queue_max_phys_segments(q, 1);
- blk_queue_max_sectors(q, 4096 / 512);
+ blk_queue_max_segments(q, 1);
+ blk_queue_max_hw_sectors(q, 4096 / 512);
gendisk->queue = q;
gendisk->fops = &viocd_fops;
gendisk->flags = GENHD_FL_CD|GENHD_FL_REMOVABLE;
diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index d485cdd..70fef40 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -1571,7 +1571,7 @@
sdev->start_stop_pwr_cond = 1;
if (lu->tgt->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS)
- blk_queue_max_sectors(sdev->request_queue, 128 * 1024 / 512);
+ blk_queue_max_hw_sectors(sdev->request_queue, 128 * 1024 / 512);
blk_queue_max_segment_size(sdev->request_queue, SBP2_MAX_SEG_SIZE);
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 7f87801..3b128dc 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -679,7 +679,7 @@
if (max_s > hwif->rqsize)
max_s = hwif->rqsize;
- blk_queue_max_sectors(q, max_s);
+ blk_queue_max_hw_sectors(q, max_s);
}
printk(KERN_INFO "%s: max request size: %dKiB\n", drive->name,
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index fefbdfc..efd9076 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -486,7 +486,7 @@
drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE;
/* This value will be visible in the /proc/ide/hdx/settings */
drive->pc_delay = IDEFLOPPY_PC_DELAY;
- blk_queue_max_sectors(drive->queue, 64);
+ blk_queue_max_hw_sectors(drive->queue, 64);
}
/*
@@ -494,7 +494,7 @@
* nasty clicking noises without it, so please don't remove this.
*/
if (strncmp((char *)&id[ATA_ID_PROD], "IOMEGA Clik!", 11) == 0) {
- blk_queue_max_sectors(drive->queue, 64);
+ blk_queue_max_hw_sectors(drive->queue, 64);
drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE;
/* IOMEGA Clik! drives do not support lock/unlock commands */
drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 4d76ba4..f8c1ae6 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -774,7 +774,7 @@
if (hwif->rqsize < max_sectors)
max_sectors = hwif->rqsize;
- blk_queue_max_sectors(q, max_sectors);
+ blk_queue_max_hw_sectors(q, max_sectors);
#ifdef CONFIG_PCI
/* When we have an IOMMU, we may have a problem where pci_map_sg()
@@ -790,8 +790,7 @@
max_sg_entries >>= 1;
#endif /* CONFIG_PCI */
- blk_queue_max_hw_segments(q, max_sg_entries);
- blk_queue_max_phys_segments(q, max_sg_entries);
+ blk_queue_max_segments(q, max_sg_entries);
/* assign drive queue */
drive->queue = q;
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index f199896..c88696a 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -2020,7 +2020,7 @@
if (lu->workarounds & SBP2_WORKAROUND_POWER_CONDITION)
sdev->start_stop_pwr_cond = 1;
if (lu->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS)
- blk_queue_max_sectors(sdev->request_queue, 128 * 1024 / 512);
+ blk_queue_max_hw_sectors(sdev->request_queue, 128 * 1024 / 512);
blk_queue_max_segment_size(sdev->request_queue, SBP2_MAX_SEG_SIZE);
return 0;
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 00435bd..af2d39d 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -177,7 +177,7 @@
*/
if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
+ blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
conf->array_sectors += rdev->sectors;
cnt++;
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 32a662f..4b323f4 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -308,7 +308,7 @@
*/
if (q->merge_bvec_fn &&
queue_max_sectors(q) > (PAGE_SIZE>>9))
- blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
+ blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
conf->working_disks++;
mddev->degraded--;
@@ -478,7 +478,7 @@
* a merge_bvec_fn to be involved in multipath */
if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
+ blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
if (!test_bit(Faulty, &rdev->flags))
conf->working_disks++;
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 77605cd..a1f7147 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -182,7 +182,7 @@
if (rdev1->bdev->bd_disk->queue->merge_bvec_fn &&
queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
+ blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
if (!smallest || (rdev1->sectors < smallest->sectors))
smallest = rdev1;
@@ -325,7 +325,7 @@
}
if (md_check_no_bitmap(mddev))
return -EINVAL;
- blk_queue_max_sectors(mddev->queue, mddev->chunk_sectors);
+ blk_queue_max_hw_sectors(mddev->queue, mddev->chunk_sectors);
mddev->queue->queue_lock = &mddev->queue->__queue_lock;
ret = create_strip_zones(mddev);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 859bd3f..5a06122 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1158,7 +1158,7 @@
*/
if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
+ blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
p->head_position = 0;
rdev->raid_disk = mirror;
@@ -2103,7 +2103,7 @@
*/
if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
+ blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
}
mddev->degraded = 0;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index d119b7b..7584f9a 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1161,7 +1161,7 @@
*/
if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
+ blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
p->head_position = 0;
rdev->raid_disk = mirror;
@@ -2260,7 +2260,7 @@
*/
if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
+ blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
disk->head_position = 0;
}
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index ceb24af..509c8f3 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3739,7 +3739,7 @@
if ((bi->bi_size>>9) > queue_max_sectors(q))
return 0;
blk_recount_segments(q, bi);
- if (bi->bi_phys_segments > queue_max_phys_segments(q))
+ if (bi->bi_phys_segments > queue_max_segments(q))
return 0;
if (q->merge_bvec_fn)
diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
index bd83fa0..972b870 100644
--- a/drivers/memstick/core/mspro_block.c
+++ b/drivers/memstick/core/mspro_block.c
@@ -1226,9 +1226,8 @@
blk_queue_prep_rq(msb->queue, mspro_block_prepare_req);
blk_queue_bounce_limit(msb->queue, limit);
- blk_queue_max_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES);
- blk_queue_max_phys_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
- blk_queue_max_hw_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
+ blk_queue_max_hw_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES);
+ blk_queue_max_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
blk_queue_max_segment_size(msb->queue,
MSPRO_BLOCK_MAX_PAGES * msb->page_size);
diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c
index e39986a..2658b14 100644
--- a/drivers/message/i2o/i2o_block.c
+++ b/drivers/message/i2o/i2o_block.c
@@ -1065,9 +1065,8 @@
queue = gd->queue;
queue->queuedata = i2o_blk_dev;
- blk_queue_max_phys_segments(queue, I2O_MAX_PHYS_SEGMENTS);
- blk_queue_max_sectors(queue, max_sectors);
- blk_queue_max_hw_segments(queue, i2o_sg_tablesize(c, body_size));
+ blk_queue_max_hw_sectors(queue, max_sectors);
+ blk_queue_max_segments(queue, i2o_sg_tablesize(c, body_size));
osm_debug("max sectors = %d\n", queue->max_sectors);
osm_debug("phys segments = %d\n", queue->max_phys_segments);
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index c5a7a85..381fe03 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -154,9 +154,8 @@
if (mq->bounce_buf) {
blk_queue_bounce_limit(mq->queue, BLK_BOUNCE_ANY);
- blk_queue_max_sectors(mq->queue, bouncesz / 512);
- blk_queue_max_phys_segments(mq->queue, bouncesz / 512);
- blk_queue_max_hw_segments(mq->queue, bouncesz / 512);
+ blk_queue_max_hw_sectors(mq->queue, bouncesz / 512);
+ blk_queue_max_segments(mq->queue, bouncesz / 512);
blk_queue_max_segment_size(mq->queue, bouncesz);
mq->sg = kmalloc(sizeof(struct scatterlist),
@@ -180,10 +179,9 @@
if (!mq->bounce_buf) {
blk_queue_bounce_limit(mq->queue, limit);
- blk_queue_max_sectors(mq->queue,
+ blk_queue_max_hw_sectors(mq->queue,
min(host->max_blk_count, host->max_req_size / 512));
- blk_queue_max_phys_segments(mq->queue, host->max_phys_segs);
- blk_queue_max_hw_segments(mq->queue, host->max_hw_segs);
+ blk_queue_max_segments(mq->queue, host->max_hw_segs);
blk_queue_max_segment_size(mq->queue, host->max_seg_size);
mq->sg = kmalloc(sizeof(struct scatterlist) *
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 5905936..8831e93 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -2129,9 +2129,8 @@
blk_queue_logical_block_size(block->request_queue, block->bp_block);
max = block->base->discipline->max_blocks << block->s2b_shift;
- blk_queue_max_sectors(block->request_queue, max);
- blk_queue_max_phys_segments(block->request_queue, -1L);
- blk_queue_max_hw_segments(block->request_queue, -1L);
+ blk_queue_max_hw_sectors(block->request_queue, max);
+ blk_queue_max_segments(block->request_queue, -1L);
/* with page sized segments we can translate each segement into
* one idaw/tidaw
*/
diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c
index 8d3d720..097da8c 100644
--- a/drivers/s390/char/tape_block.c
+++ b/drivers/s390/char/tape_block.c
@@ -222,9 +222,8 @@
goto cleanup_queue;
blk_queue_logical_block_size(blkdat->request_queue, TAPEBLOCK_HSEC_SIZE);
- blk_queue_max_sectors(blkdat->request_queue, TAPEBLOCK_MAX_SEC);
- blk_queue_max_phys_segments(blkdat->request_queue, -1L);
- blk_queue_max_hw_segments(blkdat->request_queue, -1L);
+ blk_queue_max_hw_sectors(blkdat->request_queue, TAPEBLOCK_MAX_SEC);
+ blk_queue_max_segments(blkdat->request_queue, -1L);
blk_queue_max_segment_size(blkdat->request_queue, -1L);
blk_queue_segment_boundary(blkdat->request_queue, -1L);
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 87b536a..732f6d3 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -4195,7 +4195,7 @@
if (tgt->service_parms.class3_parms[0] & 0x80000000)
rport->supported_classes |= FC_COS_CLASS3;
if (rport->rqst_q)
- blk_queue_max_hw_segments(rport->rqst_q, 1);
+ blk_queue_max_segments(rport->rqst_q, 1);
} else
tgt_dbg(tgt, "rport add failed\n");
spin_unlock_irqrestore(vhost->host->host_lock, flags);
@@ -4669,7 +4669,7 @@
}
if (shost_to_fc_host(shost)->rqst_q)
- blk_queue_max_hw_segments(shost_to_fc_host(shost)->rqst_q, 1);
+ blk_queue_max_segments(shost_to_fc_host(shost)->rqst_q, 1);
dev_set_drvdata(dev, vhost);
spin_lock(&ibmvfc_driver_lock);
list_add_tail(&vhost->queue, &ibmvfc_head);
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 9e52d16..032f0d0 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -3674,7 +3674,7 @@
if (ipr_is_vset_device(res)) {
blk_queue_rq_timeout(sdev->request_queue,
IPR_VSET_RW_TIMEOUT);
- blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
+ blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
}
if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
sdev->allow_restart = 1;
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index b6f1ef9..9b1c143 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -235,7 +235,7 @@
scsi_dev->allow_restart = 1;
blk_queue_rq_timeout(scsi_dev->request_queue,
PMCRAID_VSET_IO_TIMEOUT);
- blk_queue_max_sectors(scsi_dev->request_queue,
+ blk_queue_max_hw_sectors(scsi_dev->request_queue,
PMCRAID_VSET_MAX_SECTORS);
}
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index c664242..f8fbf47 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1624,10 +1624,10 @@
/*
* this limit is imposed by hardware restrictions
*/
- blk_queue_max_hw_segments(q, shost->sg_tablesize);
- blk_queue_max_phys_segments(q, SCSI_MAX_SG_CHAIN_SEGMENTS);
+ blk_queue_max_segments(q, min_t(unsigned short, shost->sg_tablesize,
+ SCSI_MAX_SG_CHAIN_SEGMENTS));
- blk_queue_max_sectors(q, shost->max_sectors);
+ blk_queue_max_hw_sectors(q, shost->max_sectors);
blk_queue_bounce_limit(q, scsi_calculate_bounce_limit(shost));
blk_queue_segment_boundary(q, shost->dma_boundary);
dma_set_seg_boundary(dev, shost->dma_boundary);
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 012f73a..5d9b513 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -879,7 +879,7 @@
* broken RA4x00 Compaq Disk Array
*/
if (*bflags & BLIST_MAX_512)
- blk_queue_max_sectors(sdev->request_queue, 512);
+ blk_queue_max_hw_sectors(sdev->request_queue, 512);
/*
* Some devices may not want to have a start command automatically
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 040f751..c996d98 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -287,8 +287,7 @@
if (list_empty(&sdp->sfds)) { /* no existing opens on this device */
sdp->sgdebug = 0;
q = sdp->device->request_queue;
- sdp->sg_tablesize = min(queue_max_hw_segments(q),
- queue_max_phys_segments(q));
+ sdp->sg_tablesize = queue_max_segments(q);
}
if ((sfp = sg_add_sfp(sdp, dev)))
filp->private_data = sfp;
@@ -1376,8 +1375,7 @@
sdp->device = scsidp;
INIT_LIST_HEAD(&sdp->sfds);
init_waitqueue_head(&sdp->o_excl_wait);
- sdp->sg_tablesize = min(queue_max_hw_segments(q),
- queue_max_phys_segments(q));
+ sdp->sg_tablesize = queue_max_segments(q);
sdp->index = k;
kref_init(&sdp->d_ref);
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index d04ea9a..f67d1a1 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -3983,8 +3983,7 @@
return -ENODEV;
}
- i = min(queue_max_hw_segments(SDp->request_queue),
- queue_max_phys_segments(SDp->request_queue));
+ i = queue_max_segments(SDp->request_queue);
if (st_max_sg_segs < i)
i = st_max_sg_segs;
buffer = new_tape_buffer((SDp->host)->unchecked_isa_dma, i);
diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c
index 62b2828..45d9081 100644
--- a/drivers/staging/hv/blkvsc_drv.c
+++ b/drivers/staging/hv/blkvsc_drv.c
@@ -363,10 +363,7 @@
blkdev->gd->queue = blk_init_queue(blkvsc_request, &blkdev->lock);
blk_queue_max_segment_size(blkdev->gd->queue, PAGE_SIZE);
- blk_queue_max_phys_segments(blkdev->gd->queue,
- MAX_MULTIPAGE_BUFFER_COUNT);
- blk_queue_max_hw_segments(blkdev->gd->queue,
- MAX_MULTIPAGE_BUFFER_COUNT);
+ blk_queue_max_segments(blkdev->gd->queue, MAX_MULTIPAGE_BUFFER_COUNT);
blk_queue_segment_boundary(blkdev->gd->queue, PAGE_SIZE-1);
blk_queue_bounce_limit(blkdev->gd->queue, BLK_BOUNCE_ANY);
blk_queue_dma_alignment(blkdev->gd->queue, 511);
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index e5e6df3..aadc16b 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -134,14 +134,14 @@
if (us->fflags & US_FL_MAX_SECTORS_MIN)
max_sectors = PAGE_CACHE_SIZE >> 9;
if (queue_max_sectors(sdev->request_queue) > max_sectors)
- blk_queue_max_sectors(sdev->request_queue,
+ blk_queue_max_hw_sectors(sdev->request_queue,
max_sectors);
} else if (sdev->type == TYPE_TAPE) {
/* Tapes need much higher max_sector limits, so just
* raise it to the maximum possible (4 GB / 512) and
* let the queue segment size sort out the real limit.
*/
- blk_queue_max_sectors(sdev->request_queue, 0x7FFFFF);
+ blk_queue_max_hw_sectors(sdev->request_queue, 0x7FFFFF);
}
/* Some USB host controllers can't do DMA; they have to use PIO.
@@ -495,7 +495,7 @@
unsigned short ms;
if (sscanf(buf, "%hu", &ms) > 0 && ms <= SCSI_DEFAULT_MAX_SECTORS) {
- blk_queue_max_sectors(sdev->request_queue, ms);
+ blk_queue_max_hw_sectors(sdev->request_queue, ms);
return strlen(buf);
}
return -EINVAL;
diff --git a/fs/bio.c b/fs/bio.c
index 88094af..dc17afd 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -507,10 +507,8 @@
int nr_pages;
nr_pages = ((queue_max_sectors(q) << 9) + PAGE_SIZE - 1) >> PAGE_SHIFT;
- if (nr_pages > queue_max_phys_segments(q))
- nr_pages = queue_max_phys_segments(q);
- if (nr_pages > queue_max_hw_segments(q))
- nr_pages = queue_max_hw_segments(q);
+ if (nr_pages > queue_max_segments(q))
+ nr_pages = queue_max_segments(q);
return nr_pages;
}
@@ -575,8 +573,7 @@
* make this too complex.
*/
- while (bio->bi_phys_segments >= queue_max_phys_segments(q)
- || bio->bi_phys_segments >= queue_max_hw_segments(q)) {
+ while (bio->bi_phys_segments >= queue_max_segments(q)) {
if (retried_segments)
return 0;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 2f17793..ebd22db 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -316,8 +316,7 @@
unsigned int discard_alignment;
unsigned short logical_block_size;
- unsigned short max_hw_segments;
- unsigned short max_phys_segments;
+ unsigned short max_segments;
unsigned char misaligned;
unsigned char discard_misaligned;
@@ -921,10 +920,27 @@
extern void blk_cleanup_queue(struct request_queue *);
extern void blk_queue_make_request(struct request_queue *, make_request_fn *);
extern void blk_queue_bounce_limit(struct request_queue *, u64);
-extern void blk_queue_max_sectors(struct request_queue *, unsigned int);
extern void blk_queue_max_hw_sectors(struct request_queue *, unsigned int);
-extern void blk_queue_max_phys_segments(struct request_queue *, unsigned short);
-extern void blk_queue_max_hw_segments(struct request_queue *, unsigned short);
+
+/* Temporary compatibility wrapper */
+static inline void blk_queue_max_sectors(struct request_queue *q, unsigned int max)
+{
+ blk_queue_max_hw_sectors(q, max);
+}
+
+extern void blk_queue_max_segments(struct request_queue *, unsigned short);
+
+static inline void blk_queue_max_phys_segments(struct request_queue *q, unsigned short max)
+{
+ blk_queue_max_segments(q, max);
+}
+
+static inline void blk_queue_max_hw_segments(struct request_queue *q, unsigned short max)
+{
+ blk_queue_max_segments(q, max);
+}
+
+
extern void blk_queue_max_segment_size(struct request_queue *, unsigned int);
extern void blk_queue_max_discard_sectors(struct request_queue *q,
unsigned int max_discard_sectors);
@@ -1017,11 +1033,15 @@
#define MAX_PHYS_SEGMENTS 128
#define MAX_HW_SEGMENTS 128
#define SAFE_MAX_SECTORS 255
-#define BLK_DEF_MAX_SECTORS 1024
-
#define MAX_SEGMENT_SIZE 65536
-#define BLK_SEG_BOUNDARY_MASK 0xFFFFFFFFUL
+enum blk_default_limits {
+ BLK_MAX_SEGMENTS = 128,
+ BLK_SAFE_MAX_SECTORS = 255,
+ BLK_DEF_MAX_SECTORS = 1024,
+ BLK_MAX_SEGMENT_SIZE = 65536,
+ BLK_SEG_BOUNDARY_MASK = 0xFFFFFFFFUL,
+};
#define blkdev_entry_to_request(entry) list_entry((entry), struct request, queuelist)
@@ -1045,14 +1065,9 @@
return q->limits.max_hw_sectors;
}
-static inline unsigned short queue_max_hw_segments(struct request_queue *q)
+static inline unsigned short queue_max_segments(struct request_queue *q)
{
- return q->limits.max_hw_segments;
-}
-
-static inline unsigned short queue_max_phys_segments(struct request_queue *q)
-{
- return q->limits.max_phys_segments;
+ return q->limits.max_segments;
}
static inline unsigned int queue_max_segment_size(struct request_queue *q)
diff --git a/include/linux/i2o.h b/include/linux/i2o.h
index 4c4e57d..87018dc 100644
--- a/include/linux/i2o.h
+++ b/include/linux/i2o.h
@@ -385,7 +385,7 @@
/* defines for max_sectors and max_phys_segments */
#define I2O_MAX_SECTORS 1024
#define I2O_MAX_SECTORS_LIMITED 128
-#define I2O_MAX_PHYS_SEGMENTS MAX_PHYS_SEGMENTS
+#define I2O_MAX_PHYS_SEGMENTS BLK_MAX_SEGMENTS
/*
* Message structures