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-rw-r--r--drivers/block/cciss.c3
-rw-r--r--drivers/block/drbd/Kconfig2
-rw-r--r--drivers/block/drbd/drbd_int.h7
-rw-r--r--drivers/block/drbd/drbd_main.c3
-rw-r--r--drivers/block/drbd/drbd_nl.c19
-rw-r--r--drivers/block/drbd/drbd_receiver.c48
-rw-r--r--drivers/block/pktcdvd.c2
-rw-r--r--drivers/block/viodasd.c86
-rw-r--r--drivers/block/virtio_blk.c61
9 files changed, 135 insertions, 96 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 873e594..9291614 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -337,6 +337,9 @@ static int cciss_seq_show(struct seq_file *seq, void *v)
if (*pos > h->highest_lun)
return 0;
+ if (drv == NULL) /* it's possible for h->drv[] to have holes. */
+ return 0;
+
if (drv->heads == 0)
return 0;
diff --git a/drivers/block/drbd/Kconfig b/drivers/block/drbd/Kconfig
index f4acd04..df09837 100644
--- a/drivers/block/drbd/Kconfig
+++ b/drivers/block/drbd/Kconfig
@@ -3,7 +3,7 @@
#
comment "DRBD disabled because PROC_FS, INET or CONNECTOR not selected"
- depends on !PROC_FS || !INET || !CONNECTOR
+ depends on PROC_FS='n' || INET='n' || CONNECTOR='n'
config BLK_DEV_DRBD
tristate "DRBD Distributed Replicated Block Device support"
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index c975587..2bf3a6e 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1275,7 +1275,7 @@ struct bm_extent {
#if DRBD_MAX_SECTORS_BM < DRBD_MAX_SECTORS_32
#define DRBD_MAX_SECTORS DRBD_MAX_SECTORS_BM
#define DRBD_MAX_SECTORS_FLEX DRBD_MAX_SECTORS_BM
-#elif !defined(CONFIG_LBD) && BITS_PER_LONG == 32
+#elif !defined(CONFIG_LBDAF) && BITS_PER_LONG == 32
#define DRBD_MAX_SECTORS DRBD_MAX_SECTORS_32
#define DRBD_MAX_SECTORS_FLEX DRBD_MAX_SECTORS_32
#else
@@ -1371,10 +1371,9 @@ extern int is_valid_ar_handle(struct drbd_request *, sector_t);
extern void drbd_suspend_io(struct drbd_conf *mdev);
extern void drbd_resume_io(struct drbd_conf *mdev);
extern char *ppsize(char *buf, unsigned long long size);
-extern sector_t drbd_new_dev_size(struct drbd_conf *,
- struct drbd_backing_dev *);
+extern sector_t drbd_new_dev_size(struct drbd_conf *, struct drbd_backing_dev *, int);
enum determine_dev_size { dev_size_error = -1, unchanged = 0, shrunk = 1, grew = 2 };
-extern enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *) __must_hold(local);
+extern enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *, int force) __must_hold(local);
extern void resync_after_online_grow(struct drbd_conf *);
extern void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int) __must_hold(local);
extern int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role,
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 9348f33..ab871e0 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1298,6 +1298,7 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
dev_err(DEV, "Sending state in drbd_io_error() failed\n");
}
+ wait_event(mdev->misc_wait, !atomic_read(&mdev->local_cnt));
lc_destroy(mdev->resync);
mdev->resync = NULL;
lc_destroy(mdev->act_log);
@@ -2972,7 +2973,6 @@ struct drbd_conf *drbd_new_device(unsigned int minor)
goto out_no_q;
mdev->rq_queue = q;
q->queuedata = mdev;
- blk_queue_max_segment_size(q, DRBD_MAX_SEGMENT_SIZE);
disk = alloc_disk(1);
if (!disk)
@@ -2996,6 +2996,7 @@ struct drbd_conf *drbd_new_device(unsigned int minor)
q->backing_dev_info.congested_data = mdev;
blk_queue_make_request(q, drbd_make_request_26);
+ blk_queue_max_segment_size(q, DRBD_MAX_SEGMENT_SIZE);
blk_queue_bounce_limit(q, BLK_BOUNCE_ANY);
blk_queue_merge_bvec(q, drbd_merge_bvec);
q->queue_lock = &mdev->req_lock; /* needed since we use */
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 4e0726a..1292e06 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -510,7 +510,7 @@ void drbd_resume_io(struct drbd_conf *mdev)
* Returns 0 on success, negative return values indicate errors.
* You should call drbd_md_sync() after calling this function.
*/
-enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev) __must_hold(local)
+enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev, int force) __must_hold(local)
{
sector_t prev_first_sect, prev_size; /* previous meta location */
sector_t la_size;
@@ -541,7 +541,7 @@ enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev) __must_ho
/* TODO: should only be some assert here, not (re)init... */
drbd_md_set_sector_offsets(mdev, mdev->ldev);
- size = drbd_new_dev_size(mdev, mdev->ldev);
+ size = drbd_new_dev_size(mdev, mdev->ldev, force);
if (drbd_get_capacity(mdev->this_bdev) != size ||
drbd_bm_capacity(mdev) != size) {
@@ -596,7 +596,7 @@ out:
}
sector_t
-drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev)
+drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev, int assume_peer_has_space)
{
sector_t p_size = mdev->p_size; /* partner's disk size. */
sector_t la_size = bdev->md.la_size_sect; /* last agreed size. */
@@ -606,6 +606,11 @@ drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev)
m_size = drbd_get_max_capacity(bdev);
+ if (mdev->state.conn < C_CONNECTED && assume_peer_has_space) {
+ dev_warn(DEV, "Resize while not connected was forced by the user!\n");
+ p_size = m_size;
+ }
+
if (p_size && m_size) {
size = min_t(sector_t, p_size, m_size);
} else {
@@ -965,7 +970,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
/* Prevent shrinking of consistent devices ! */
if (drbd_md_test_flag(nbc, MDF_CONSISTENT) &&
- drbd_new_dev_size(mdev, nbc) < nbc->md.la_size_sect) {
+ drbd_new_dev_size(mdev, nbc, 0) < nbc->md.la_size_sect) {
dev_warn(DEV, "refusing to truncate a consistent device\n");
retcode = ERR_DISK_TO_SMALL;
goto force_diskless_dec;
@@ -1052,7 +1057,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
!drbd_md_test_flag(mdev->ldev, MDF_CONNECTED_IND))
set_bit(USE_DEGR_WFC_T, &mdev->flags);
- dd = drbd_determin_dev_size(mdev);
+ dd = drbd_determin_dev_size(mdev, 0);
if (dd == dev_size_error) {
retcode = ERR_NOMEM_BITMAP;
goto force_diskless_dec;
@@ -1271,7 +1276,7 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
goto fail;
}
- if (crypto_tfm_alg_type(crypto_hash_tfm(tfm)) != CRYPTO_ALG_TYPE_SHASH) {
+ if (!drbd_crypto_is_hash(crypto_hash_tfm(tfm))) {
retcode = ERR_AUTH_ALG_ND;
goto fail;
}
@@ -1504,7 +1509,7 @@ static int drbd_nl_resize(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
}
mdev->ldev->dc.disk_size = (sector_t)rs.resize_size;
- dd = drbd_determin_dev_size(mdev);
+ dd = drbd_determin_dev_size(mdev, rs.resize_force);
drbd_md_sync(mdev);
put_ldev(mdev);
if (dd == dev_size_error) {
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 259c135..d065c64 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -878,9 +878,13 @@ retry:
if (mdev->cram_hmac_tfm) {
/* drbd_request_state(mdev, NS(conn, WFAuth)); */
- if (!drbd_do_auth(mdev)) {
+ switch (drbd_do_auth(mdev)) {
+ case -1:
dev_err(DEV, "Authentication of peer failed\n");
return -1;
+ case 0:
+ dev_err(DEV, "Authentication of peer failed, trying again.\n");
+ return 0;
}
}
@@ -1201,10 +1205,11 @@ static int receive_Barrier(struct drbd_conf *mdev, struct p_header *h)
case WO_bdev_flush:
case WO_drain_io:
- D_ASSERT(rv == FE_STILL_LIVE);
- set_bit(DE_BARRIER_IN_NEXT_EPOCH_ISSUED, &mdev->current_epoch->flags);
- drbd_wait_ee_list_empty(mdev, &mdev->active_ee);
- rv = drbd_flush_after_epoch(mdev, mdev->current_epoch);
+ if (rv == FE_STILL_LIVE) {
+ set_bit(DE_BARRIER_IN_NEXT_EPOCH_ISSUED, &mdev->current_epoch->flags);
+ drbd_wait_ee_list_empty(mdev, &mdev->active_ee);
+ rv = drbd_flush_after_epoch(mdev, mdev->current_epoch);
+ }
if (rv == FE_RECYCLED)
return TRUE;
@@ -1219,7 +1224,7 @@ static int receive_Barrier(struct drbd_conf *mdev, struct p_header *h)
epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);
if (!epoch) {
dev_warn(DEV, "Allocation of an epoch failed, slowing down\n");
- issue_flush = !test_and_set_bit(DE_BARRIER_IN_NEXT_EPOCH_ISSUED, &epoch->flags);
+ issue_flush = !test_and_set_bit(DE_BARRIER_IN_NEXT_EPOCH_ISSUED, &mdev->current_epoch->flags);
drbd_wait_ee_list_empty(mdev, &mdev->active_ee);
if (issue_flush) {
rv = drbd_flush_after_epoch(mdev, mdev->current_epoch);
@@ -2865,7 +2870,7 @@ static int receive_sizes(struct drbd_conf *mdev, struct p_header *h)
/* Never shrink a device with usable data during connect.
But allow online shrinking if we are connected. */
- if (drbd_new_dev_size(mdev, mdev->ldev) <
+ if (drbd_new_dev_size(mdev, mdev->ldev, 0) <
drbd_get_capacity(mdev->this_bdev) &&
mdev->state.disk >= D_OUTDATED &&
mdev->state.conn < C_CONNECTED) {
@@ -2880,7 +2885,7 @@ static int receive_sizes(struct drbd_conf *mdev, struct p_header *h)
#undef min_not_zero
if (get_ldev(mdev)) {
- dd = drbd_determin_dev_size(mdev);
+ dd = drbd_determin_dev_size(mdev, 0);
put_ldev(mdev);
if (dd == dev_size_error)
return FALSE;
@@ -3830,10 +3835,17 @@ static int drbd_do_auth(struct drbd_conf *mdev)
{
dev_err(DEV, "This kernel was build without CONFIG_CRYPTO_HMAC.\n");
dev_err(DEV, "You need to disable 'cram-hmac-alg' in drbd.conf.\n");
- return 0;
+ return -1;
}
#else
#define CHALLENGE_LEN 64
+
+/* Return value:
+ 1 - auth succeeded,
+ 0 - failed, try again (network error),
+ -1 - auth failed, don't try again.
+*/
+
static int drbd_do_auth(struct drbd_conf *mdev)
{
char my_challenge[CHALLENGE_LEN]; /* 64 Bytes... */
@@ -3854,7 +3866,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
(u8 *)mdev->net_conf->shared_secret, key_len);
if (rv) {
dev_err(DEV, "crypto_hash_setkey() failed with %d\n", rv);
- rv = 0;
+ rv = -1;
goto fail;
}
@@ -3877,14 +3889,14 @@ static int drbd_do_auth(struct drbd_conf *mdev)
if (p.length > CHALLENGE_LEN*2) {
dev_err(DEV, "expected AuthChallenge payload too big.\n");
- rv = 0;
+ rv = -1;
goto fail;
}
peers_ch = kmalloc(p.length, GFP_NOIO);
if (peers_ch == NULL) {
dev_err(DEV, "kmalloc of peers_ch failed\n");
- rv = 0;
+ rv = -1;
goto fail;
}
@@ -3900,7 +3912,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
response = kmalloc(resp_size, GFP_NOIO);
if (response == NULL) {
dev_err(DEV, "kmalloc of response failed\n");
- rv = 0;
+ rv = -1;
goto fail;
}
@@ -3910,7 +3922,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
rv = crypto_hash_digest(&desc, &sg, sg.length, response);
if (rv) {
dev_err(DEV, "crypto_hash_digest() failed with %d\n", rv);
- rv = 0;
+ rv = -1;
goto fail;
}
@@ -3944,9 +3956,9 @@ static int drbd_do_auth(struct drbd_conf *mdev)
}
right_response = kmalloc(resp_size, GFP_NOIO);
- if (response == NULL) {
+ if (right_response == NULL) {
dev_err(DEV, "kmalloc of right_response failed\n");
- rv = 0;
+ rv = -1;
goto fail;
}
@@ -3955,7 +3967,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
rv = crypto_hash_digest(&desc, &sg, sg.length, right_response);
if (rv) {
dev_err(DEV, "crypto_hash_digest() failed with %d\n", rv);
- rv = 0;
+ rv = -1;
goto fail;
}
@@ -3964,6 +3976,8 @@ static int drbd_do_auth(struct drbd_conf *mdev)
if (rv)
dev_info(DEV, "Peer authenticated using %d bytes of '%s' HMAC\n",
resp_size, mdev->net_conf->cram_hmac_alg);
+ else
+ rv = -1;
fail:
kfree(peers_ch);
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 2ddf03a..68b5957 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -322,7 +322,7 @@ static void pkt_sysfs_dev_remove(struct pktcdvd_device *pd)
pkt_kobj_remove(pd->kobj_stat);
pkt_kobj_remove(pd->kobj_wqueue);
if (class_pktcdvd)
- device_destroy(class_pktcdvd, pd->pkt_dev);
+ device_unregister(pd->dev);
}
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index a8c8b56..1b3def1 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -28,6 +28,9 @@
* All disk operations are performed by sending messages back and forth to
* the OS/400 partition.
*/
+
+#define pr_fmt(fmt) "viod: " fmt
+
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/module.h>
@@ -63,9 +66,6 @@ MODULE_LICENSE("GPL");
#define VIOD_VERS "1.64"
-#define VIOD_KERN_WARNING KERN_WARNING "viod: "
-#define VIOD_KERN_INFO KERN_INFO "viod: "
-
enum {
PARTITION_SHIFT = 3,
MAX_DISKNO = HVMAXARCHITECTEDVIRTUALDISKS,
@@ -156,7 +156,7 @@ static int viodasd_open(struct block_device *bdev, fmode_t mode)
((u64)DEVICE_NO(d) << 48) | ((u64)flags << 32),
0, 0, 0);
if (hvrc != 0) {
- printk(VIOD_KERN_WARNING "HV open failed %d\n", (int)hvrc);
+ pr_warning("HV open failed %d\n", (int)hvrc);
return -EIO;
}
@@ -167,9 +167,8 @@ static int viodasd_open(struct block_device *bdev, fmode_t mode)
const struct vio_error_entry *err =
vio_lookup_rc(viodasd_err_table, we.sub_result);
- printk(VIOD_KERN_WARNING
- "bad rc opening disk: %d:0x%04x (%s)\n",
- (int)we.rc, we.sub_result, err->msg);
+ pr_warning("bad rc opening disk: %d:0x%04x (%s)\n",
+ (int)we.rc, we.sub_result, err->msg);
return -EIO;
}
@@ -195,8 +194,7 @@ static int viodasd_release(struct gendisk *disk, fmode_t mode)
((u64)DEVICE_NO(d) << 48) /* | ((u64)flags << 32) */,
0, 0, 0);
if (hvrc != 0)
- printk(VIOD_KERN_WARNING "HV close call failed %d\n",
- (int)hvrc);
+ pr_warning("HV close call failed %d\n", (int)hvrc);
return 0;
}
@@ -288,8 +286,7 @@ static int send_request(struct request *req)
bevent = (struct vioblocklpevent *)
vio_get_event_buffer(viomajorsubtype_blockio);
if (bevent == NULL) {
- printk(VIOD_KERN_WARNING
- "error allocating disk event buffer\n");
+ pr_warning("error allocating disk event buffer\n");
goto error_ret;
}
@@ -333,9 +330,8 @@ static int send_request(struct request *req)
}
if (hvrc != HvLpEvent_Rc_Good) {
- printk(VIOD_KERN_WARNING
- "error sending disk event to OS/400 (rc %d)\n",
- (int)hvrc);
+ pr_warning("error sending disk event to OS/400 (rc %d)\n",
+ (int)hvrc);
goto error_ret;
}
spin_unlock_irqrestore(&viodasd_spinlock, flags);
@@ -402,7 +398,7 @@ retry:
((u64)dev_no << 48) | ((u64)flags<< 32),
0, 0, 0);
if (hvrc != 0) {
- printk(VIOD_KERN_WARNING "bad rc on HV open %d\n", (int)hvrc);
+ pr_warning("bad rc on HV open %d\n", (int)hvrc);
return 0;
}
@@ -416,9 +412,8 @@ retry:
goto retry;
}
if (we.max_disk > (MAX_DISKNO - 1)) {
- printk_once(VIOD_KERN_INFO
- "Only examining the first %d of %d disks connected\n",
- MAX_DISKNO, we.max_disk + 1);
+ printk_once(KERN_INFO pr_fmt("Only examining the first %d of %d disks connected\n"),
+ MAX_DISKNO, we.max_disk + 1);
}
/* Send the close event to OS/400. We DON'T expect a response */
@@ -432,17 +427,15 @@ retry:
((u64)dev_no << 48) | ((u64)flags << 32),
0, 0, 0);
if (hvrc != 0) {
- printk(VIOD_KERN_WARNING
- "bad rc sending event to OS/400 %d\n", (int)hvrc);
+ pr_warning("bad rc sending event to OS/400 %d\n", (int)hvrc);
return 0;
}
if (d->dev == NULL) {
/* this is when we reprobe for new disks */
if (vio_create_viodasd(dev_no) == NULL) {
- printk(VIOD_KERN_WARNING
- "cannot allocate virtual device for disk %d\n",
- dev_no);
+ pr_warning("cannot allocate virtual device for disk %d\n",
+ dev_no);
return 0;
}
/*
@@ -457,15 +450,13 @@ retry:
spin_lock_init(&d->q_lock);
q = blk_init_queue(do_viodasd_request, &d->q_lock);
if (q == NULL) {
- printk(VIOD_KERN_WARNING "cannot allocate queue for disk %d\n",
- dev_no);
+ pr_warning("cannot allocate queue for disk %d\n", dev_no);
return 0;
}
g = alloc_disk(1 << PARTITION_SHIFT);
if (g == NULL) {
- printk(VIOD_KERN_WARNING
- "cannot allocate disk structure for disk %d\n",
- dev_no);
+ pr_warning("cannot allocate disk structure for disk %d\n",
+ dev_no);
blk_cleanup_queue(q);
return 0;
}
@@ -489,13 +480,12 @@ retry:
g->driverfs_dev = d->dev;
set_capacity(g, d->size >> 9);
- printk(VIOD_KERN_INFO "disk %d: %lu sectors (%lu MB) "
- "CHS=%d/%d/%d sector size %d%s\n",
- dev_no, (unsigned long)(d->size >> 9),
- (unsigned long)(d->size >> 20),
- (int)d->cylinders, (int)d->tracks,
- (int)d->sectors, (int)d->bytes_per_sector,
- d->read_only ? " (RO)" : "");
+ pr_info("disk %d: %lu sectors (%lu MB) CHS=%d/%d/%d sector size %d%s\n",
+ dev_no, (unsigned long)(d->size >> 9),
+ (unsigned long)(d->size >> 20),
+ (int)d->cylinders, (int)d->tracks,
+ (int)d->sectors, (int)d->bytes_per_sector,
+ d->read_only ? " (RO)" : "");
/* register us in the global list */
add_disk(g);
@@ -580,8 +570,8 @@ static int viodasd_handle_read_write(struct vioblocklpevent *bevent)
if (error) {
const struct vio_error_entry *err;
err = vio_lookup_rc(viodasd_err_table, bevent->sub_result);
- printk(VIOD_KERN_WARNING "read/write error %d:0x%04x (%s)\n",
- event->xRc, bevent->sub_result, err->msg);
+ pr_warning("read/write error %d:0x%04x (%s)\n",
+ event->xRc, bevent->sub_result, err->msg);
num_sect = blk_rq_sectors(req);
}
qlock = req->q->queue_lock;
@@ -606,8 +596,7 @@ static void handle_block_event(struct HvLpEvent *event)
return;
/* First, we should NEVER get an int here...only acks */
if (hvlpevent_is_int(event)) {
- printk(VIOD_KERN_WARNING
- "Yikes! got an int in viodasd event handler!\n");
+ pr_warning("Yikes! got an int in viodasd event handler!\n");
if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
@@ -650,7 +639,7 @@ static void handle_block_event(struct HvLpEvent *event)
break;
default:
- printk(VIOD_KERN_WARNING "invalid subtype!");
+ pr_warning("invalid subtype!");
if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
@@ -739,29 +728,26 @@ static int __init viodasd_init(void)
vio_set_hostlp();
if (viopath_hostLp == HvLpIndexInvalid) {
- printk(VIOD_KERN_WARNING "invalid hosting partition\n");
+ pr_warning("invalid hosting partition\n");
rc = -EIO;
goto early_fail;
}
- printk(VIOD_KERN_INFO "vers " VIOD_VERS ", hosting partition %d\n",
- viopath_hostLp);
+ pr_info("vers " VIOD_VERS ", hosting partition %d\n", viopath_hostLp);
/* register the block device */
rc = register_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
if (rc) {
- printk(VIOD_KERN_WARNING
- "Unable to get major number %d for %s\n",
- VIODASD_MAJOR, VIOD_GENHD_NAME);
+ pr_warning("Unable to get major number %d for %s\n",
+ VIODASD_MAJOR, VIOD_GENHD_NAME);
goto early_fail;
}
/* Actually open the path to the hosting partition */
rc = viopath_open(viopath_hostLp, viomajorsubtype_blockio,
VIOMAXREQ + 2);
if (rc) {
- printk(VIOD_KERN_WARNING
- "error opening path to host partition %d\n",
- viopath_hostLp);
+ pr_warning("error opening path to host partition %d\n",
+ viopath_hostLp);
goto unregister_blk;
}
@@ -770,7 +756,7 @@ static int __init viodasd_init(void)
rc = vio_register_driver(&viodasd_driver);
if (rc) {
- printk(VIOD_KERN_WARNING "vio_register_driver failed\n");
+ pr_warning("vio_register_driver failed\n");
goto unset_handler;
}
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 51042f0ba7..7eff828 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -243,10 +243,12 @@ static int index_to_minor(int index)
static int __devinit virtblk_probe(struct virtio_device *vdev)
{
struct virtio_blk *vblk;
+ struct request_queue *q;
int err;
u64 cap;
- u32 v;
- u32 blk_size, sg_elems;
+ u32 v, blk_size, sg_elems, opt_io_size;
+ u16 min_io_size;
+ u8 physical_block_exp, alignment_offset;
if (index_to_minor(index) >= 1 << MINORBITS)
return -ENOSPC;
@@ -293,13 +295,13 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
goto out_mempool;
}
- vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock);
- if (!vblk->disk->queue) {
+ q = vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock);
+ if (!q) {
err = -ENOMEM;
goto out_put_disk;
}
- vblk->disk->queue->queuedata = vblk;
+ q->queuedata = vblk;
if (index < 26) {
sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26);
@@ -323,10 +325,10 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
/* If barriers are supported, tell block layer that queue is ordered */
if (virtio_has_feature(vdev, VIRTIO_BLK_F_FLUSH))
- blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_DRAIN_FLUSH,
+ blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH,
virtblk_prepare_flush);
else if (virtio_has_feature(vdev, VIRTIO_BLK_F_BARRIER))
- blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_TAG, NULL);
+ blk_queue_ordered(q, QUEUE_ORDERED_TAG, NULL);
/* If disk is read-only in the host, the guest should obey */
if (virtio_has_feature(vdev, VIRTIO_BLK_F_RO))
@@ -345,14 +347,14 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
set_capacity(vblk->disk, cap);
/* We can handle whatever the host told us to handle. */
- blk_queue_max_phys_segments(vblk->disk->queue, vblk->sg_elems-2);
- blk_queue_max_hw_segments(vblk->disk->queue, vblk->sg_elems-2);
+ blk_queue_max_phys_segments(q, vblk->sg_elems-2);
+ blk_queue_max_hw_segments(q, vblk->sg_elems-2);
/* No need to bounce any requests */
- blk_queue_bounce_limit(vblk->disk->queue, BLK_BOUNCE_ANY);
+ blk_queue_bounce_limit(q, BLK_BOUNCE_ANY);
/* No real sector limit. */
- blk_queue_max_sectors(vblk->disk->queue, -1U);
+ blk_queue_max_sectors(q, -1U);
/* Host can optionally specify maximum segment size and number of
* segments. */
@@ -360,16 +362,45 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
offsetof(struct virtio_blk_config, size_max),
&v);
if (!err)
- blk_queue_max_segment_size(vblk->disk->queue, v);
+ blk_queue_max_segment_size(q, v);
else
- blk_queue_max_segment_size(vblk->disk->queue, -1U);
+ blk_queue_max_segment_size(q, -1U);
/* Host can optionally specify the block size of the device */
err = virtio_config_val(vdev, VIRTIO_BLK_F_BLK_SIZE,
offsetof(struct virtio_blk_config, blk_size),
&blk_size);
if (!err)
- blk_queue_logical_block_size(vblk->disk->queue, blk_size);
+ blk_queue_logical_block_size(q, blk_size);
+ else
+ blk_size = queue_logical_block_size(q);
+
+ /* Use topology information if available */
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, physical_block_exp),
+ &physical_block_exp);
+ if (!err && physical_block_exp)
+ blk_queue_physical_block_size(q,
+ blk_size * (1 << physical_block_exp));
+
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, alignment_offset),
+ &alignment_offset);
+ if (!err && alignment_offset)
+ blk_queue_alignment_offset(q, blk_size * alignment_offset);
+
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, min_io_size),
+ &min_io_size);
+ if (!err && min_io_size)
+ blk_queue_io_min(q, blk_size * min_io_size);
+
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, opt_io_size),
+ &opt_io_size);
+ if (!err && opt_io_size)
+ blk_queue_io_opt(q, blk_size * opt_io_size);
+
add_disk(vblk->disk);
return 0;
@@ -412,7 +443,7 @@ static struct virtio_device_id id_table[] = {
static unsigned int features[] = {
VIRTIO_BLK_F_BARRIER, VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX,
VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE,
- VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH
+ VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY
};
/*
generated by cgit v1.1 at 2025-08-25 06:58:36 +0000