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-rw-r--r--drivers/block/aoe/aoe.h9
-rw-r--r--drivers/block/aoe/aoeblk.c14
-rw-r--r--drivers/block/aoe/aoechr.c8
-rw-r--r--drivers/block/aoe/aoecmd.c104
-rw-r--r--drivers/block/aoe/aoedev.c14
-rw-r--r--drivers/block/aoe/aoemain.c1
-rw-r--r--drivers/block/aoe/aoenet.c9
-rw-r--r--drivers/block/ataflop.c4
-rw-r--r--drivers/block/cciss.c8
-rw-r--r--drivers/block/cciss_scsi.c151
-rw-r--r--drivers/block/cciss_scsi.h4
-rw-r--r--drivers/block/cpqarray.c2
-rw-r--r--drivers/block/floppy.c31
-rw-r--r--drivers/block/hd.c9
-rw-r--r--drivers/block/nbd.c4
-rw-r--r--drivers/block/pktcdvd.c4
-rw-r--r--drivers/block/ps3disk.c11
-rw-r--r--drivers/block/sunvdc.c4
-rw-r--r--drivers/block/virtio_blk.c14
-rw-r--r--drivers/block/xen-blkfront.c78
20 files changed, 280 insertions, 203 deletions
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index 5b4c6e649c11..93f3690396a5 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -159,11 +159,8 @@ struct aoedev {
sector_t ssize;
struct timer_list timer;
spinlock_t lock;
- struct sk_buff *sendq_hd; /* packets needing to be sent, list head */
- struct sk_buff *sendq_tl;
- struct sk_buff *skbpool_hd;
- struct sk_buff *skbpool_tl;
- int nskbpool;
+ struct sk_buff_head sendq;
+ struct sk_buff_head skbpool;
mempool_t *bufpool; /* for deadlock-free Buf allocation */
struct list_head bufq; /* queue of bios to work on */
struct buf *inprocess; /* the one we're currently working on */
@@ -199,7 +196,7 @@ int aoedev_flush(const char __user *str, size_t size);
int aoenet_init(void);
void aoenet_exit(void);
-void aoenet_xmit(struct sk_buff *);
+void aoenet_xmit(struct sk_buff_head *);
int is_aoe_netif(struct net_device *ifp);
int set_aoe_iflist(const char __user *str, size_t size);
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 0c39782b2660..b82654e883a7 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -109,12 +109,12 @@ static const struct attribute_group attr_group = {
static int
aoedisk_add_sysfs(struct aoedev *d)
{
- return sysfs_create_group(&d->gd->dev.kobj, &attr_group);
+ return sysfs_create_group(&disk_to_dev(d->gd)->kobj, &attr_group);
}
void
aoedisk_rm_sysfs(struct aoedev *d)
{
- sysfs_remove_group(&d->gd->dev.kobj, &attr_group);
+ sysfs_remove_group(&disk_to_dev(d->gd)->kobj, &attr_group);
}
static int
@@ -158,9 +158,9 @@ aoeblk_release(struct inode *inode, struct file *filp)
static int
aoeblk_make_request(struct request_queue *q, struct bio *bio)
{
+ struct sk_buff_head queue;
struct aoedev *d;
struct buf *buf;
- struct sk_buff *sl;
ulong flags;
blk_queue_bounce(q, &bio);
@@ -213,11 +213,11 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio)
list_add_tail(&buf->bufs, &d->bufq);
aoecmd_work(d);
- sl = d->sendq_hd;
- d->sendq_hd = d->sendq_tl = NULL;
+ __skb_queue_head_init(&queue);
+ skb_queue_splice_init(&d->sendq, &queue);
spin_unlock_irqrestore(&d->lock, flags);
- aoenet_xmit(sl);
+ aoenet_xmit(&queue);
return 0;
}
@@ -276,7 +276,7 @@ aoeblk_gdalloc(void *vp)
gd->first_minor = d->sysminor * AOE_PARTITIONS;
gd->fops = &aoe_bdops;
gd->private_data = d;
- gd->capacity = d->ssize;
+ set_capacity(gd, d->ssize);
snprintf(gd->disk_name, sizeof gd->disk_name, "etherd/e%ld.%d",
d->aoemajor, d->aoeminor);
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index 181ebb85f0be..1f56d2c5b7fc 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -9,6 +9,7 @@
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/smp_lock.h>
+#include <linux/skbuff.h>
#include "aoe.h"
enum {
@@ -103,7 +104,12 @@ loop:
spin_lock_irqsave(&d->lock, flags);
goto loop;
}
- aoenet_xmit(skb);
+ if (skb) {
+ struct sk_buff_head queue;
+ __skb_queue_head_init(&queue);
+ __skb_queue_tail(&queue, skb);
+ aoenet_xmit(&queue);
+ }
aoecmd_cfg(major, minor);
return 0;
}
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 2f1746295d06..71ff78c9e4d6 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -114,29 +114,22 @@ ifrotate(struct aoetgt *t)
static void
skb_pool_put(struct aoedev *d, struct sk_buff *skb)
{
- if (!d->skbpool_hd)
- d->skbpool_hd = skb;
- else
- d->skbpool_tl->next = skb;
- d->skbpool_tl = skb;
+ __skb_queue_tail(&d->skbpool, skb);
}
static struct sk_buff *
skb_pool_get(struct aoedev *d)
{
- struct sk_buff *skb;
+ struct sk_buff *skb = skb_peek(&d->skbpool);
- skb = d->skbpool_hd;
if (skb && atomic_read(&skb_shinfo(skb)->dataref) == 1) {
- d->skbpool_hd = skb->next;
- skb->next = NULL;
+ __skb_unlink(skb, &d->skbpool);
return skb;
}
- if (d->nskbpool < NSKBPOOLMAX
- && (skb = new_skb(ETH_ZLEN))) {
- d->nskbpool++;
+ if (skb_queue_len(&d->skbpool) < NSKBPOOLMAX &&
+ (skb = new_skb(ETH_ZLEN)))
return skb;
- }
+
return NULL;
}
@@ -293,29 +286,22 @@ aoecmd_ata_rw(struct aoedev *d)
skb->dev = t->ifp->nd;
skb = skb_clone(skb, GFP_ATOMIC);
- if (skb) {
- if (d->sendq_hd)
- d->sendq_tl->next = skb;
- else
- d->sendq_hd = skb;
- d->sendq_tl = skb;
- }
+ if (skb)
+ __skb_queue_tail(&d->sendq, skb);
return 1;
}
/* some callers cannot sleep, and they can call this function,
* transmitting the packets later, when interrupts are on
*/
-static struct sk_buff *
-aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff **tail)
+static void
+aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff_head *queue)
{
struct aoe_hdr *h;
struct aoe_cfghdr *ch;
- struct sk_buff *skb, *sl, *sl_tail;
+ struct sk_buff *skb;
struct net_device *ifp;
- sl = sl_tail = NULL;
-
read_lock(&dev_base_lock);
for_each_netdev(&init_net, ifp) {
dev_hold(ifp);
@@ -329,8 +315,7 @@ aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff **tail)
}
skb_put(skb, sizeof *h + sizeof *ch);
skb->dev = ifp;
- if (sl_tail == NULL)
- sl_tail = skb;
+ __skb_queue_tail(queue, skb);
h = (struct aoe_hdr *) skb_mac_header(skb);
memset(h, 0, sizeof *h + sizeof *ch);
@@ -342,16 +327,10 @@ aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff **tail)
h->minor = aoeminor;
h->cmd = AOECMD_CFG;
- skb->next = sl;
- sl = skb;
cont:
dev_put(ifp);
}
read_unlock(&dev_base_lock);
-
- if (tail != NULL)
- *tail = sl_tail;
- return sl;
}
static void
@@ -406,11 +385,7 @@ resend(struct aoedev *d, struct aoetgt *t, struct frame *f)
skb = skb_clone(skb, GFP_ATOMIC);
if (skb == NULL)
return;
- if (d->sendq_hd)
- d->sendq_tl->next = skb;
- else
- d->sendq_hd = skb;
- d->sendq_tl = skb;
+ __skb_queue_tail(&d->sendq, skb);
}
static int
@@ -508,16 +483,15 @@ ata_scnt(unsigned char *packet) {
static void
rexmit_timer(ulong vp)
{
+ struct sk_buff_head queue;
struct aoedev *d;
struct aoetgt *t, **tt, **te;
struct aoeif *ifp;
struct frame *f, *e;
- struct sk_buff *sl;
register long timeout;
ulong flags, n;
d = (struct aoedev *) vp;
- sl = NULL;
/* timeout is always ~150% of the moving average */
timeout = d->rttavg;
@@ -589,7 +563,7 @@ rexmit_timer(ulong vp)
}
}
- if (d->sendq_hd) {
+ if (!skb_queue_empty(&d->sendq)) {
n = d->rttavg <<= 1;
if (n > MAXTIMER)
d->rttavg = MAXTIMER;
@@ -600,15 +574,15 @@ rexmit_timer(ulong vp)
aoecmd_work(d);
}
- sl = d->sendq_hd;
- d->sendq_hd = d->sendq_tl = NULL;
+ __skb_queue_head_init(&queue);
+ skb_queue_splice_init(&d->sendq, &queue);
d->timer.expires = jiffies + TIMERTICK;
add_timer(&d->timer);
spin_unlock_irqrestore(&d->lock, flags);
- aoenet_xmit(sl);
+ aoenet_xmit(&queue);
}
/* enters with d->lock held */
@@ -645,7 +619,7 @@ aoecmd_sleepwork(struct work_struct *work)
unsigned long flags;
u64 ssize;
- ssize = d->gd->capacity;
+ ssize = get_capacity(d->gd);
bd = bdget_disk(d->gd, 0);
if (bd) {
@@ -707,7 +681,7 @@ ataid_complete(struct aoedev *d, struct aoetgt *t, unsigned char *id)
if (d->flags & (DEVFL_GDALLOC|DEVFL_NEWSIZE))
return;
if (d->gd != NULL) {
- d->gd->capacity = ssize;
+ set_capacity(d->gd, ssize);
d->flags |= DEVFL_NEWSIZE;
} else
d->flags |= DEVFL_GDALLOC;
@@ -756,23 +730,28 @@ diskstats(struct gendisk *disk, struct bio *bio, ulong duration, sector_t sector
unsigned long n_sect = bio->bi_size >> 9;
const int rw = bio_data_dir(bio);
struct hd_struct *part;
+ int cpu;
+
+ cpu = part_stat_lock();
+ part = disk_map_sector_rcu(disk, sector);
+
+ part_stat_inc(cpu, part, ios[rw]);
+ part_stat_add(cpu, part, ticks[rw], duration);
+ part_stat_add(cpu, part, sectors[rw], n_sect);
+ part_stat_add(cpu, part, io_ticks, duration);
- part = get_part(disk, sector);
- all_stat_inc(disk, part, ios[rw], sector);
- all_stat_add(disk, part, ticks[rw], duration, sector);
- all_stat_add(disk, part, sectors[rw], n_sect, sector);
- all_stat_add(disk, part, io_ticks, duration, sector);
+ part_stat_unlock();
}
void
aoecmd_ata_rsp(struct sk_buff *skb)
{
+ struct sk_buff_head queue;
struct aoedev *d;
struct aoe_hdr *hin, *hout;
struct aoe_atahdr *ahin, *ahout;
struct frame *f;
struct buf *buf;
- struct sk_buff *sl;
struct aoetgt *t;
struct aoeif *ifp;
register long n;
@@ -893,21 +872,21 @@ aoecmd_ata_rsp(struct sk_buff *skb)
aoecmd_work(d);
xmit:
- sl = d->sendq_hd;
- d->sendq_hd = d->sendq_tl = NULL;
+ __skb_queue_head_init(&queue);
+ skb_queue_splice_init(&d->sendq, &queue);
spin_unlock_irqrestore(&d->lock, flags);
- aoenet_xmit(sl);
+ aoenet_xmit(&queue);
}
void
aoecmd_cfg(ushort aoemajor, unsigned char aoeminor)
{
- struct sk_buff *sl;
+ struct sk_buff_head queue;
- sl = aoecmd_cfg_pkts(aoemajor, aoeminor, NULL);
-
- aoenet_xmit(sl);
+ __skb_queue_head_init(&queue);
+ aoecmd_cfg_pkts(aoemajor, aoeminor, &queue);
+ aoenet_xmit(&queue);
}
struct sk_buff *
@@ -1076,7 +1055,12 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
spin_unlock_irqrestore(&d->lock, flags);
- aoenet_xmit(sl);
+ if (sl) {
+ struct sk_buff_head queue;
+ __skb_queue_head_init(&queue);
+ __skb_queue_tail(&queue, sl);
+ aoenet_xmit(&queue);
+ }
}
void
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index a1d813ab0d6b..cc250577d405 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -91,7 +91,7 @@ aoedev_downdev(struct aoedev *d)
}
if (d->gd)
- d->gd->capacity = 0;
+ set_capacity(d->gd, 0);
d->flags &= ~DEVFL_UP;
}
@@ -188,14 +188,12 @@ skbfree(struct sk_buff *skb)
static void
skbpoolfree(struct aoedev *d)
{
- struct sk_buff *skb;
+ struct sk_buff *skb, *tmp;
- while ((skb = d->skbpool_hd)) {
- d->skbpool_hd = skb->next;
- skb->next = NULL;
+ skb_queue_walk_safe(&d->skbpool, skb, tmp)
skbfree(skb);
- }
- d->skbpool_tl = NULL;
+
+ __skb_queue_head_init(&d->skbpool);
}
/* find it or malloc it */
@@ -217,6 +215,8 @@ aoedev_by_sysminor_m(ulong sysminor)
goto out;
INIT_WORK(&d->work, aoecmd_sleepwork);
spin_lock_init(&d->lock);
+ skb_queue_head_init(&d->sendq);
+ skb_queue_head_init(&d->skbpool);
init_timer(&d->timer);
d->timer.data = (ulong) d;
d->timer.function = dummy_timer;
diff --git a/drivers/block/aoe/aoemain.c b/drivers/block/aoe/aoemain.c
index 7b15a5e9cec0..7f83ad90e76f 100644
--- a/drivers/block/aoe/aoemain.c
+++ b/drivers/block/aoe/aoemain.c
@@ -7,6 +7,7 @@
#include <linux/hdreg.h>
#include <linux/blkdev.h>
#include <linux/module.h>
+#include <linux/skbuff.h>
#include "aoe.h"
MODULE_LICENSE("GPL");
diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
index 0c81ca731287..9157d64270cb 100644
--- a/drivers/block/aoe/aoenet.c
+++ b/drivers/block/aoe/aoenet.c
@@ -95,13 +95,12 @@ mac_addr(char addr[6])
}
void
-aoenet_xmit(struct sk_buff *sl)
+aoenet_xmit(struct sk_buff_head *queue)
{
- struct sk_buff *skb;
+ struct sk_buff *skb, *tmp;
- while ((skb = sl)) {
- sl = sl->next;
- skb->next = skb->prev = NULL;
+ skb_queue_walk_safe(queue, skb, tmp) {
+ __skb_unlink(skb, queue);
dev_queue_xmit(skb);
}
}
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index 49f274197b16..432cf4018291 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1882,10 +1882,6 @@ static int __init atari_floppy_init (void)
/* Amiga, Mac, ... don't have Atari-compatible floppy :-) */
return -ENODEV;
- if (MACH_IS_HADES)
- /* Hades doesn't have Atari-compatible floppy */
- return -ENODEV;
-
if (register_blkdev(FLOPPY_MAJOR,"fd"))
return -EBUSY;
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index b73116ef9236..1e1f9153000c 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3460,8 +3460,8 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
hba[i]->intr[SIMPLE_MODE_INT], dac ? "" : " not");
hba[i]->cmd_pool_bits =
- kmalloc(((hba[i]->nr_cmds + BITS_PER_LONG -
- 1) / BITS_PER_LONG) * sizeof(unsigned long), GFP_KERNEL);
+ kmalloc(DIV_ROUND_UP(hba[i]->nr_cmds, BITS_PER_LONG)
+ * sizeof(unsigned long), GFP_KERNEL);
hba[i]->cmd_pool = (CommandList_struct *)
pci_alloc_consistent(hba[i]->pdev,
hba[i]->nr_cmds * sizeof(CommandList_struct),
@@ -3493,8 +3493,8 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
/* command and error info recs zeroed out before
they are used */
memset(hba[i]->cmd_pool_bits, 0,
- ((hba[i]->nr_cmds + BITS_PER_LONG -
- 1) / BITS_PER_LONG) * sizeof(unsigned long));
+ DIV_ROUND_UP(hba[i]->nr_cmds, BITS_PER_LONG)
+ * sizeof(unsigned long));
hba[i]->num_luns = 0;
hba[i]->highest_lun = -1;
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index e1233aabda77..a3fd87b41444 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -365,7 +365,7 @@ struct scsi2map {
static int
cciss_scsi_add_entry(int ctlr, int hostno,
- unsigned char *scsi3addr, int devtype,
+ struct cciss_scsi_dev_t *device,
struct scsi2map *added, int *nadded)
{
/* assumes hba[ctlr]->scsi_ctlr->lock is held */
@@ -384,12 +384,12 @@ cciss_scsi_add_entry(int ctlr, int hostno,
lun = 0;
/* Is this device a non-zero lun of a multi-lun device */
/* byte 4 of the 8-byte LUN addr will contain the logical unit no. */
- if (scsi3addr[4] != 0) {
+ if (device->scsi3addr[4] != 0) {
/* Search through our list and find the device which */
/* has the same 8 byte LUN address, excepting byte 4. */
/* Assign the same bus and target for this new LUN. */
/* Use the logical unit number from the firmware. */
- memcpy(addr1, scsi3addr, 8);
+ memcpy(addr1, device->scsi3addr, 8);
addr1[4] = 0;
for (i = 0; i < n; i++) {
sd = &ccissscsi[ctlr].dev[i];
@@ -399,7 +399,7 @@ cciss_scsi_add_entry(int ctlr, int hostno,
if (memcmp(addr1, addr2, 8) == 0) {
bus = sd->bus;
target = sd->target;
- lun = scsi3addr[4];
+ lun = device->scsi3addr[4];
break;
}
}
@@ -420,8 +420,12 @@ cciss_scsi_add_entry(int ctlr, int hostno,
added[*nadded].lun = sd->lun;
(*nadded)++;
- memcpy(&sd->scsi3addr[0], scsi3addr, 8);
- sd->devtype = devtype;
+ memcpy(sd->scsi3addr, device->scsi3addr, 8);
+ memcpy(sd->vendor, device->vendor, sizeof(sd->vendor));
+ memcpy(sd->revision, device->revision, sizeof(sd->revision));
+ memcpy(sd->device_id, device->device_id, sizeof(sd->device_id));
+ sd->devtype = device->devtype;
+
ccissscsi[ctlr].ndevices++;
/* initially, (before registering with scsi layer) we don't
@@ -487,6 +491,22 @@ static void fixup_botched_add(int ctlr, char *scsi3addr)
CPQ_TAPE_UNLOCK(ctlr, flags);
}
+static int device_is_the_same(struct cciss_scsi_dev_t *dev1,
+ struct cciss_scsi_dev_t *dev2)
+{
+ return dev1->devtype == dev2->devtype &&
+ memcmp(dev1->scsi3addr, dev2->scsi3addr,
+ sizeof(dev1->scsi3addr)) == 0 &&
+ memcmp(dev1->device_id, dev2->device_id,
+ sizeof(dev1->device_id)) == 0 &&
+ memcmp(dev1->vendor, dev2->vendor,
+ sizeof(dev1->vendor)) == 0 &&
+ memcmp(dev1->model, dev2->model,
+ sizeof(dev1->model)) == 0 &&
+ memcmp(dev1->revision, dev2->revision,
+ sizeof(dev1->revision)) == 0;
+}
+
static int
adjust_cciss_scsi_table(int ctlr, int hostno,
struct cciss_scsi_dev_t sd[], int nsds)
@@ -532,7 +552,7 @@ adjust_cciss_scsi_table(int ctlr, int hostno,
for (j=0;j<nsds;j++) {
if (SCSI3ADDR_EQ(sd[j].scsi3addr,
csd->scsi3addr)) {
- if (sd[j].devtype == csd->devtype)
+ if (device_is_the_same(&sd[j], csd))
found=2;
else
found=1;
@@ -548,22 +568,26 @@ adjust_cciss_scsi_table(int ctlr, int hostno,
cciss_scsi_remove_entry(ctlr, hostno, i,
removed, &nremoved);
/* remove ^^^, hence i not incremented */
- }
- else if (found == 1) { /* device is different kind */
+ } else if (found == 1) { /* device is different in some way */
changes++;
- printk("cciss%d: device c%db%dt%dl%d type changed "
- "(device type now %s).\n",
- ctlr, hostno, csd->bus, csd->target, csd->lun,
- scsi_device_type(csd->devtype));
+ printk("cciss%d: device c%db%dt%dl%d has changed.\n",
+ ctlr, hostno, csd->bus, csd->target, csd->lun);
cciss_scsi_remove_entry(ctlr, hostno, i,
removed, &nremoved);
/* remove ^^^, hence i not incremented */
- if (cciss_scsi_add_entry(ctlr, hostno,
- &sd[j].scsi3addr[0], sd[j].devtype,
+ if (cciss_scsi_add_entry(ctlr, hostno, &sd[j],
added, &nadded) != 0)
/* we just removed one, so add can't fail. */
BUG();
csd->devtype = sd[j].devtype;
+ memcpy(csd->device_id, sd[j].device_id,
+ sizeof(csd->device_id));
+ memcpy(csd->vendor, sd[j].vendor,
+ sizeof(csd->vendor));
+ memcpy(csd->model, sd[j].model,
+ sizeof(csd->model));
+ memcpy(csd->revision, sd[j].revision,
+ sizeof(csd->revision));
} else /* device is same as it ever was, */
i++; /* so just move along. */
}
@@ -577,7 +601,7 @@ adjust_cciss_scsi_table(int ctlr, int hostno,
csd = &ccissscsi[ctlr].dev[j];
if (SCSI3ADDR_EQ(sd[i].scsi3addr,
csd->scsi3addr)) {
- if (sd[i].devtype == csd->devtype)
+ if (device_is_the_same(&sd[i], csd))
found=2; /* found device */
else
found=1; /* found a bug. */
@@ -586,16 +610,14 @@ adjust_cciss_scsi_table(int ctlr, int hostno,
}
if (!found) {
changes++;
- if (cciss_scsi_add_entry(ctlr, hostno,
-
- &sd[i].scsi3addr[0], sd[i].devtype,
+ if (cciss_scsi_add_entry(ctlr, hostno, &sd[i],
added, &nadded) != 0)
break;
} else if (found == 1) {
/* should never happen... */
changes++;
- printk("cciss%d: device unexpectedly changed type\n",
- ctlr);
+ printk(KERN_WARNING "cciss%d: device "
+ "unexpectedly changed\n", ctlr);
/* but if it does happen, we just ignore that device */
}
}
@@ -1012,7 +1034,8 @@ cciss_scsi_interpret_error(CommandList_struct *cp)
static int
cciss_scsi_do_inquiry(ctlr_info_t *c, unsigned char *scsi3addr,
- unsigned char *buf, unsigned char bufsize)
+ unsigned char page, unsigned char *buf,
+ unsigned char bufsize)
{
int rc;
CommandList_struct *cp;
@@ -1032,8 +1055,8 @@ cciss_scsi_do_inquiry(ctlr_info_t *c, unsigned char *scsi3addr,
ei = cp->err_info;
cdb[0] = CISS_INQUIRY;
- cdb[1] = 0;
- cdb[2] = 0;
+ cdb[1] = (page != 0);
+ cdb[2] = page;
cdb[3] = 0;
cdb[4] = bufsize;
cdb[5] = 0;
@@ -1053,6 +1076,25 @@ cciss_scsi_do_inquiry(ctlr_info_t *c, unsigned char *scsi3addr,
return rc;
}
+/* Get the device id from inquiry page 0x83 */
+static int cciss_scsi_get_device_id(ctlr_info_t *c, unsigned char *scsi3addr,
+ unsigned char *device_id, int buflen)
+{
+ int rc;
+ unsigned char *buf;
+
+ if (buflen > 16)
+ buflen = 16;
+ buf = kzalloc(64, GFP_KERNEL);
+ if (!buf)
+ return -1;
+ rc = cciss_scsi_do_inquiry(c, scsi3addr, 0x83, buf, 64);
+ if (rc == 0)
+ memcpy(device_id, &buf[8], buflen);
+ kfree(buf);
+ return rc != 0;
+}
+
static int
cciss_scsi_do_report_phys_luns(ctlr_info_t *c,
ReportLunData_struct *buf, int bufsize)
@@ -1142,25 +1184,21 @@ cciss_update_non_disk_devices(int cntl_num, int hostno)
ctlr_info_t *c;
__u32 num_luns=0;
unsigned char *ch;
- /* unsigned char found[CCISS_MAX_SCSI_DEVS_PER_HBA]; */
- struct cciss_scsi_dev_t currentsd[CCISS_MAX_SCSI_DEVS_PER_HBA];
+ struct cciss_scsi_dev_t *currentsd, *this_device;
int ncurrent=0;
int reportlunsize = sizeof(*ld_buff) + CISS_MAX_PHYS_LUN * 8;
int i;
c = (ctlr_info_t *) hba[cntl_num];
ld_buff = kzalloc(reportlunsize, GFP_KERNEL);
- if (ld_buff == NULL) {
- printk(KERN_ERR "cciss: out of memory\n");
- return;
- }
inq_buff = kmalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL);
- if (inq_buff == NULL) {
- printk(KERN_ERR "cciss: out of memory\n");
- kfree(ld_buff);
- return;
+ currentsd = kzalloc(sizeof(*currentsd) *
+ (CCISS_MAX_SCSI_DEVS_PER_HBA+1), GFP_KERNEL);
+ if (ld_buff == NULL || inq_buff == NULL || currentsd == NULL) {
+ printk(KERN_ERR "cciss: out of memory\n");
+ goto out;
}
-
+ this_device = &currentsd[CCISS_MAX_SCSI_DEVS_PER_HBA];
if (cciss_scsi_do_report_phys_luns(c, ld_buff, reportlunsize) == 0) {
ch = &ld_buff->LUNListLength[0];
num_luns = ((ch[0]<<24) | (ch[1]<<16) | (ch[2]<<8) | ch[3]) / 8;
@@ -1179,23 +1217,34 @@ cciss_update_non_disk_devices(int cntl_num, int hostno)
/* adjust our table of devices */
- for(i=0; i<num_luns; i++)
- {
- int devtype;
-
+ for (i = 0; i < num_luns; i++) {
/* for each physical lun, do an inquiry */
if (ld_buff->LUN[i][3] & 0xC0) continue;
memset(inq_buff, 0, OBDR_TAPE_INQ_SIZE);
memcpy(&scsi3addr[0], &ld_buff->LUN[i][0], 8);
- if (cciss_scsi_do_inquiry(hba[cntl_num], scsi3addr, inq_buff,
- (unsigned char) OBDR_TAPE_INQ_SIZE) != 0) {
+ if (cciss_scsi_do_inquiry(hba[cntl_num], scsi3addr, 0, inq_buff,
+ (unsigned char) OBDR_TAPE_INQ_SIZE) != 0)
/* Inquiry failed (msg printed already) */
- devtype = 0; /* so we will skip this device. */
- } else /* what kind of device is this? */
- devtype = (inq_buff[0] & 0x1f);
-
- switch (devtype)
+ continue; /* so we will skip this device. */
+
+ this_device->devtype = (inq_buff[0] & 0x1f);
+ this_device->bus = -1;
+ this_device->target = -1;
+ this_device->lun = -1;
+ memcpy(this_device->scsi3addr, scsi3addr, 8);
+ memcpy(this_device->vendor, &inq_buff[8],
+ sizeof(this_device->vendor));
+ memcpy(this_device->model, &inq_buff[16],
+ sizeof(this_device->model));
+ memcpy(this_device->revision, &inq_buff[32],
+ sizeof(this_device->revision));
+ memset(this_device->device_id, 0,
+ sizeof(this_device->device_id));
+ cciss_scsi_get_device_id(hba[cntl_num], scsi3addr,
+ this_device->device_id, sizeof(this_device->device_id));
+
+ switch (this_device->devtype)
{
case 0x05: /* CD-ROM */ {
@@ -1220,15 +1269,10 @@ cciss_update_non_disk_devices(int cntl_num, int hostno)
if (ncurrent >= CCISS_MAX_SCSI_DEVS_PER_HBA) {
printk(KERN_INFO "cciss%d: %s ignored, "
"too many devices.\n", cntl_num,
- scsi_device_type(devtype));
+ scsi_device_type(this_device->devtype));
break;
}
- memcpy(&currentsd[ncurrent].scsi3addr[0],
- &scsi3addr[0], 8);
- currentsd[ncurrent].devtype = devtype;
- currentsd[ncurrent].bus = -1;
- currentsd[ncurrent].target = -1;
- currentsd[ncurrent].lun = -1;
+ currentsd[ncurrent] = *this_device;
ncurrent++;
break;
default:
@@ -1240,6 +1284,7 @@ cciss_update_non_disk_devices(int cntl_num, int hostno)
out:
kfree(inq_buff);
kfree(ld_buff);
+ kfree(currentsd);
return;
}
diff --git a/drivers/block/cciss_scsi.h b/drivers/block/cciss_scsi.h
index d9c2c586502f..7b750245ae76 100644
--- a/drivers/block/cciss_scsi.h
+++ b/drivers/block/cciss_scsi.h
@@ -66,6 +66,10 @@ struct cciss_scsi_dev_t {
int devtype;
int bus, target, lun; /* as presented to the OS */
unsigned char scsi3addr[8]; /* as presented to the HW */
+ unsigned char device_id[16]; /* from inquiry pg. 0x83 */
+ unsigned char vendor[8]; /* bytes 8-15 of inquiry data */
+ unsigned char model[16]; /* bytes 16-31 of inquiry data */
+ unsigned char revision[4]; /* bytes 32-35 of inquiry data */
};
struct cciss_scsi_hba_t {
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 09c14341e6e3..3d967525e9a9 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -424,7 +424,7 @@ static int __init cpqarray_register_ctlr( int i, struct pci_dev *pdev)
hba[i]->pci_dev, NR_CMDS * sizeof(cmdlist_t),
&(hba[i]->cmd_pool_dhandle));
hba[i]->cmd_pool_bits = kcalloc(
- (NR_CMDS+BITS_PER_LONG-1)/BITS_PER_LONG, sizeof(unsigned long),
+ DIV_ROUND_UP(NR_CMDS, BITS_PER_LONG), sizeof(unsigned long),
GFP_KERNEL);
if (!hba[i]->cmd_pool_bits || !hba[i]->cmd_pool)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 5813e0d1a927..2cea27aba9a0 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -423,8 +423,15 @@ static struct floppy_raw_cmd *raw_cmd, default_raw_cmd;
* 1581's logical side 0 is on physical side 1, whereas the Sharp's logical
* side 0 is on physical side 0 (but with the misnamed sector IDs).
* 'stretch' should probably be renamed to something more general, like
- * 'options'. Other parameters should be self-explanatory (see also
- * setfdprm(8)).
+ * 'options'.
+ *
+ * Bits 2 through 9 of 'stretch' tell the number of the first sector.
+ * The LSB (bit 2) is flipped. For most disks, the first sector
+ * is 1 (represented by 0x00<<2). For some CP/M and music sampler
+ * disks (such as Ensoniq EPS 16plus) it is 0 (represented as 0x01<<2).
+ * For Amstrad CPC disks it is 0xC1 (represented as 0xC0<<2).
+ *
+ * Other parameters should be self-explanatory (see also setfdprm(8)).
*/
/*
Size
@@ -1355,20 +1362,20 @@ static void fdc_specify(void)
}
/* Convert step rate from microseconds to milliseconds and 4 bits */
- srt = 16 - (DP->srt * scale_dtr / 1000 + NOMINAL_DTR - 1) / NOMINAL_DTR;
+ srt = 16 - DIV_ROUND_UP(DP->srt * scale_dtr / 1000, NOMINAL_DTR);
if (slow_floppy) {
srt = srt / 4;
}
SUPBOUND(srt, 0xf);
INFBOUND(srt, 0);
- hlt = (DP->hlt * scale_dtr / 2 + NOMINAL_DTR - 1) / NOMINAL_DTR;
+ hlt = DIV_ROUND_UP(DP->hlt * scale_dtr / 2, NOMINAL_DTR);
if (hlt < 0x01)
hlt = 0x01;
else if (hlt > 0x7f)
hlt = hlt_max_code;
- hut = (DP->hut * scale_dtr / 16 + NOMINAL_DTR - 1) / NOMINAL_DTR;
+ hut = DIV_ROUND_UP(DP->hut * scale_dtr / 16, NOMINAL_DTR);
if (hut < 0x1)
hut = 0x1;
else if (hut > 0xf)
@@ -2236,9 +2243,9 @@ static void setup_format_params(int track)
}
}
}
- if (_floppy->stretch & FD_ZEROBASED) {
+ if (_floppy->stretch & FD_SECTBASEMASK) {
for (count = 0; count < F_SECT_PER_TRACK; count++)
- here[count].sect--;
+ here[count].sect += FD_SECTBASE(_floppy) - 1;
}
}
@@ -2385,7 +2392,7 @@ static void rw_interrupt(void)
#ifdef FLOPPY_SANITY_CHECK
if (nr_sectors / ssize >
- (in_sector_offset + current_count_sectors + ssize - 1) / ssize) {
+ DIV_ROUND_UP(in_sector_offset + current_count_sectors, ssize)) {
DPRINT("long rw: %x instead of %lx\n",
nr_sectors, current_count_sectors);
printk("rs=%d s=%d\n", R_SECTOR, SECTOR);
@@ -2649,7 +2656,7 @@ static int make_raw_rw_request(void)
}
HEAD = fsector_t / _floppy->sect;
- if (((_floppy->stretch & (FD_SWAPSIDES | FD_ZEROBASED)) ||
+ if (((_floppy->stretch & (FD_SWAPSIDES | FD_SECTBASEMASK)) ||
TESTF(FD_NEED_TWADDLE)) && fsector_t < _floppy->sect)
max_sector = _floppy->sect;
@@ -2679,7 +2686,7 @@ static int make_raw_rw_request(void)
CODE2SIZE;
SECT_PER_TRACK = _floppy->sect << 2 >> SIZECODE;
SECTOR = ((fsector_t % _floppy->sect) << 2 >> SIZECODE) +
- ((_floppy->stretch & FD_ZEROBASED) ? 0 : 1);
+ FD_SECTBASE(_floppy);
/* tracksize describes the size which can be filled up with sectors
* of size ssize.
@@ -3311,7 +3318,7 @@ static inline int set_geometry(unsigned int cmd, struct floppy_struct *g,
g->head <= 0 ||
g->track <= 0 || g->track > UDP->tracks >> STRETCH(g) ||
/* check if reserved bits are set */
- (g->stretch & ~(FD_STRETCH | FD_SWAPSIDES | FD_ZEROBASED)) != 0)
+ (g->stretch & ~(FD_STRETCH | FD_SWAPSIDES | FD_SECTBASEMASK)) != 0)
return -EINVAL;
if (type) {
if (!capable(CAP_SYS_ADMIN))
@@ -3356,7 +3363,7 @@ static inline int set_geometry(unsigned int cmd, struct floppy_struct *g,
if (DRS->maxblock > user_params[drive].sect ||
DRS->maxtrack ||
((user_params[drive].sect ^ oldStretch) &
- (FD_SWAPSIDES | FD_ZEROBASED)))
+ (FD_SWAPSIDES | FD_SECTBASEMASK)))
invalidate_drive(bdev);
else
process_fd_request();
diff --git a/drivers/block/hd.c b/drivers/block/hd.c
index 682243bf2e46..482c0c4b964f 100644
--- a/drivers/block/hd.c
+++ b/drivers/block/hd.c
@@ -39,6 +39,7 @@
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/blkpg.h>
+#include <linux/ata.h>
#include <linux/hdreg.h>
#define REALLY_SLOW_IO
@@ -370,7 +371,7 @@ repeat:
struct hd_i_struct *disk = &hd_info[i];
disk->special_op = disk->recalibrate = 1;
hd_out(disk, disk->sect, disk->sect, disk->head-1,
- disk->cyl, WIN_SPECIFY, &reset_hd);
+ disk->cyl, ATA_CMD_INIT_DEV_PARAMS, &reset_hd);
if (reset)
goto repeat;
} else
@@ -558,7 +559,7 @@ static int do_special_op(struct hd_i_struct *disk, struct request *req)
{
if (disk->recalibrate) {
disk->recalibrate = 0;
- hd_out(disk, disk->sect, 0, 0, 0, WIN_RESTORE, &recal_intr);
+ hd_out(disk, disk->sect, 0, 0, 0, ATA_CMD_RESTORE, &recal_intr);
return reset;
}
if (disk->head > 16) {
@@ -631,13 +632,13 @@ repeat:
if (blk_fs_request(req)) {
switch (rq_data_dir(req)) {
case READ:
- hd_out(disk, nsect, sec, head, cyl, WIN_READ,
+ hd_out(disk, nsect, sec, head, cyl, ATA_CMD_PIO_READ,
&read_intr);
if (reset)
goto repeat;
break;
case WRITE:
- hd_out(disk, nsect, sec, head, cyl, WIN_WRITE,
+ hd_out(disk, nsect, sec, head, cyl, ATA_CMD_PIO_WRITE,
&write_intr);
if (reset)
goto repeat;
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 1778e4a2c672..7b3351260d56 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -403,7 +403,7 @@ static int nbd_do_it(struct nbd_device *lo)
BUG_ON(lo->magic != LO_MAGIC);
lo->pid = current->pid;
- ret = sysfs_create_file(&lo->disk->dev.kobj, &pid_attr.attr);
+ ret = sysfs_create_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr);
if (ret) {
printk(KERN_ERR "nbd: sysfs_create_file failed!");
return ret;
@@ -412,7 +412,7 @@ static int nbd_do_it(struct nbd_device *lo)
while ((req = nbd_read_stat(lo)) != NULL)
nbd_end_request(req);
- sysfs_remove_file(&lo->disk->dev.kobj, &pid_attr.attr);
+ sysfs_remove_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr);
return 0;
}
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 29b7a648cc6e..0e077150568b 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2544,7 +2544,7 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio)
if (last_zone != zone) {
BUG_ON(last_zone != zone + pd->settings.size);
first_sectors = last_zone - bio->bi_sector;
- bp = bio_split(bio, bio_split_pool, first_sectors);
+ bp = bio_split(bio, first_sectors);
BUG_ON(!bp);
pkt_make_request(q, &bp->bio1);
pkt_make_request(q, &bp->bio2);
@@ -2911,7 +2911,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
if (!disk->queue)
goto out_mem2;
- pd->pkt_dev = MKDEV(disk->major, disk->first_minor);
+ pd->pkt_dev = MKDEV(pktdev_major, idx);
ret = pkt_new_dev(pd, dev);
if (ret)
goto out_new_dev;
diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index d797e209951d..936466f62afd 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -199,7 +199,8 @@ static void ps3disk_do_request(struct ps3_storage_device *dev,
if (blk_fs_request(req)) {
if (ps3disk_submit_request_sg(dev, req))
break;
- } else if (req->cmd_type == REQ_TYPE_FLUSH) {
+ } else if (req->cmd_type == REQ_TYPE_LINUX_BLOCK &&
+ req->cmd[0] == REQ_LB_OP_FLUSH) {
if (ps3disk_submit_flush_request(dev, req))
break;
} else {
@@ -257,7 +258,8 @@ static irqreturn_t ps3disk_interrupt(int irq, void *data)
return IRQ_HANDLED;
}
- if (req->cmd_type == REQ_TYPE_FLUSH) {
+ if (req->cmd_type == REQ_TYPE_LINUX_BLOCK &&
+ req->cmd[0] == REQ_LB_OP_FLUSH) {
read = 0;
num_sectors = req->hard_cur_sectors;
op = "flush";
@@ -405,7 +407,8 @@ static void ps3disk_prepare_flush(struct request_queue *q, struct request *req)
dev_dbg(&dev->sbd.core, "%s:%u\n", __func__, __LINE__);
- req->cmd_type = REQ_TYPE_FLUSH;
+ req->cmd_type = REQ_TYPE_LINUX_BLOCK;
+ req->cmd[0] = REQ_LB_OP_FLUSH;
}
static unsigned long ps3disk_mask;
@@ -538,7 +541,7 @@ static int ps3disk_remove(struct ps3_system_bus_device *_dev)
struct ps3disk_private *priv = dev->sbd.core.driver_data;
mutex_lock(&ps3disk_mask_mutex);
- __clear_bit(priv->gendisk->first_minor / PS3DISK_MINORS,
+ __clear_bit(MINOR(disk_devt(priv->gendisk)) / PS3DISK_MINORS,
&ps3disk_mask);
mutex_unlock(&ps3disk_mask_mutex);
del_gendisk(priv->gendisk);
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index a8de037ecd4a..953c0b83d758 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -1,6 +1,6 @@
/* sunvdc.c: Sun LDOM Virtual Disk Client.
*
- * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
+ * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
*/
#include <linux/module.h>
@@ -834,7 +834,7 @@ static int vdc_port_remove(struct vio_dev *vdev)
return 0;
}
-static struct vio_device_id vdc_port_match[] = {
+static const struct vio_device_id vdc_port_match[] = {
{
.type = "vdc-port",
},
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 42251095134f..6ec5fc052786 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -47,20 +47,20 @@ static void blk_done(struct virtqueue *vq)
spin_lock_irqsave(&vblk->lock, flags);
while ((vbr = vblk->vq->vq_ops->get_buf(vblk->vq, &len)) != NULL) {
- int uptodate;
+ int error;
switch (vbr->status) {
case VIRTIO_BLK_S_OK:
- uptodate = 1;
+ error = 0;
break;
case VIRTIO_BLK_S_UNSUPP:
- uptodate = -ENOTTY;
+ error = -ENOTTY;
break;
default:
- uptodate = 0;
+ error = -EIO;
break;
}
- end_dequeued_request(vbr->req, uptodate);
+ __blk_end_request(vbr->req, error, blk_rq_bytes(vbr->req));
list_del(&vbr->list);
mempool_free(vbr, vblk->pool);
}
@@ -84,11 +84,11 @@ static bool do_req(struct request_queue *q, struct virtio_blk *vblk,
if (blk_fs_request(vbr->req)) {
vbr->out_hdr.type = 0;
vbr->out_hdr.sector = vbr->req->sector;
- vbr->out_hdr.ioprio = vbr->req->ioprio;
+ vbr->out_hdr.ioprio = req_get_ioprio(vbr->req);
} else if (blk_pc_request(vbr->req)) {
vbr->out_hdr.type = VIRTIO_BLK_T_SCSI_CMD;
vbr->out_hdr.sector = 0;
- vbr->out_hdr.ioprio = vbr->req->ioprio;
+ vbr->out_hdr.ioprio = req_get_ioprio(vbr->req);
} else {
/* We don't put anything else in the queue. */
BUG();
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 3ca643cafccd..1a50ae70f716 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -105,15 +105,17 @@ static DEFINE_SPINLOCK(blkif_io_lock);
#define GRANT_INVALID_REF 0
#define PARTS_PER_DISK 16
+#define PARTS_PER_EXT_DISK 256
#define BLKIF_MAJOR(dev) ((dev)>>8)
#define BLKIF_MINOR(dev) ((dev) & 0xff)
-#define DEV_NAME "xvd" /* name in /dev */
+#define EXT_SHIFT 28
+#define EXTENDED (1<<EXT_SHIFT)
+#define VDEV_IS_EXTENDED(dev) ((dev)&(EXTENDED))
+#define BLKIF_MINOR_EXT(dev) ((dev)&(~EXTENDED))
-/* Information about our VBDs. */
-#define MAX_VBDS 64
-static LIST_HEAD(vbds_list);
+#define DEV_NAME "xvd" /* name in /dev */
static int get_id_from_freelist(struct blkfront_info *info)
{
@@ -386,31 +388,60 @@ static int xlvbd_barrier(struct blkfront_info *info)
}
-static int xlvbd_alloc_gendisk(int minor, blkif_sector_t capacity,
- int vdevice, u16 vdisk_info, u16 sector_size,
- struct blkfront_info *info)
+static int xlvbd_alloc_gendisk(blkif_sector_t capacity,
+ struct blkfront_info *info,
+ u16 vdisk_info, u16 sector_size)
{
struct gendisk *gd;
int nr_minors = 1;
int err = -ENODEV;
+ unsigned int offset;
+ int minor;
+ int nr_parts;
BUG_ON(info->gd != NULL);
BUG_ON(info->rq != NULL);
- if ((minor % PARTS_PER_DISK) == 0)
- nr_minors = PARTS_PER_DISK;
+ if ((info->vdevice>>EXT_SHIFT) > 1) {
+ /* this is above the extended range; something is wrong */
+ printk(KERN_WARNING "blkfront: vdevice 0x%x is above the extended range; ignoring\n", info->vdevice);
+ return -ENODEV;
+ }
+
+ if (!VDEV_IS_EXTENDED(info->vdevice)) {
+ minor = BLKIF_MINOR(info->vdevice);
+ nr_parts = PARTS_PER_DISK;
+ } else {
+ minor = BLKIF_MINOR_EXT(info->vdevice);
+ nr_parts = PARTS_PER_EXT_DISK;
+ }
+
+ if ((minor % nr_parts) == 0)
+ nr_minors = nr_parts;
gd = alloc_disk(nr_minors);
if (gd == NULL)
goto out;
- if (nr_minors > 1)
- sprintf(gd->disk_name, "%s%c", DEV_NAME,
- 'a' + minor / PARTS_PER_DISK);
- else
- sprintf(gd->disk_name, "%s%c%d", DEV_NAME,
- 'a' + minor / PARTS_PER_DISK,
- minor % PARTS_PER_DISK);
+ offset = minor / nr_parts;
+
+ if (nr_minors > 1) {
+ if (offset < 26)
+ sprintf(gd->disk_name, "%s%c", DEV_NAME, 'a' + offset);
+ else
+ sprintf(gd->disk_name, "%s%c%c", DEV_NAME,
+ 'a' + ((offset / 26)-1), 'a' + (offset % 26));
+ } else {
+ if (offset < 26)
+ sprintf(gd->disk_name, "%s%c%d", DEV_NAME,
+ 'a' + offset,
+ minor & (nr_parts - 1));
+ else
+ sprintf(gd->disk_name, "%s%c%c%d", DEV_NAME,
+ 'a' + ((offset / 26) - 1),
+ 'a' + (offset % 26),
+ minor & (nr_parts - 1));
+ }
gd->major = XENVBD_MAJOR;
gd->first_minor = minor;
@@ -699,8 +730,13 @@ static int blkfront_probe(struct xenbus_device *dev,
err = xenbus_scanf(XBT_NIL, dev->nodename,
"virtual-device", "%i", &vdevice);
if (err != 1) {
- xenbus_dev_fatal(dev, err, "reading virtual-device");
- return err;
+ /* go looking in the extended area instead */
+ err = xenbus_scanf(XBT_NIL, dev->nodename, "virtual-device-ext",
+ "%i", &vdevice);
+ if (err != 1) {
+ xenbus_dev_fatal(dev, err, "reading virtual-device");
+ return err;
+ }
}
info = kzalloc(sizeof(*info), GFP_KERNEL);
@@ -861,9 +897,7 @@ static void blkfront_connect(struct blkfront_info *info)
if (err)
info->feature_barrier = 0;
- err = xlvbd_alloc_gendisk(BLKIF_MINOR(info->vdevice),
- sectors, info->vdevice,
- binfo, sector_size, info);
+ err = xlvbd_alloc_gendisk(sectors, info, binfo, sector_size);
if (err) {
xenbus_dev_fatal(info->xbdev, err, "xlvbd_add at %s",
info->xbdev->otherend);
@@ -1032,7 +1066,7 @@ static struct xenbus_driver blkfront = {
static int __init xlblk_init(void)
{
- if (!is_running_on_xen())
+ if (!xen_domain())
return -ENODEV;
if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 20:56:23 +0100