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-rw-r--r--drivers/block/DAC960.c8
-rw-r--r--drivers/block/aoe/aoechr.c3
-rw-r--r--drivers/block/cciss.c2
-rw-r--r--drivers/block/cciss_scsi.c96
-rw-r--r--drivers/block/cpqarray.c2
-rw-r--r--drivers/block/drbd/drbd_proc.c2
-rw-r--r--drivers/block/drbd/drbd_receiver.c5
-rw-r--r--drivers/block/loop.c2
-rw-r--r--drivers/block/nbd.c2
-rw-r--r--drivers/block/pktcdvd.c2
-rw-r--r--drivers/block/ps3vram.c2
-rw-r--r--drivers/block/virtio_blk.c148
12 files changed, 128 insertions, 146 deletions
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 5b5ee79ff236..eb3950113e42 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -6473,7 +6473,7 @@ static int dac960_initial_status_proc_show(struct seq_file *m, void *v)
static int dac960_initial_status_proc_open(struct inode *inode, struct file *file)
{
- return single_open(file, dac960_initial_status_proc_show, PDE(inode)->data);
+ return single_open(file, dac960_initial_status_proc_show, PDE_DATA(inode));
}
static const struct file_operations dac960_initial_status_proc_fops = {
@@ -6519,7 +6519,7 @@ static int dac960_current_status_proc_show(struct seq_file *m, void *v)
static int dac960_current_status_proc_open(struct inode *inode, struct file *file)
{
- return single_open(file, dac960_current_status_proc_show, PDE(inode)->data);
+ return single_open(file, dac960_current_status_proc_show, PDE_DATA(inode));
}
static const struct file_operations dac960_current_status_proc_fops = {
@@ -6540,14 +6540,14 @@ static int dac960_user_command_proc_show(struct seq_file *m, void *v)
static int dac960_user_command_proc_open(struct inode *inode, struct file *file)
{
- return single_open(file, dac960_user_command_proc_show, PDE(inode)->data);
+ return single_open(file, dac960_user_command_proc_show, PDE_DATA(inode));
}
static ssize_t dac960_user_command_proc_write(struct file *file,
const char __user *Buffer,
size_t Count, loff_t *pos)
{
- DAC960_Controller_T *Controller = (DAC960_Controller_T *) PDE(file_inode(file))->data;
+ DAC960_Controller_T *Controller = PDE_DATA(file_inode(file));
unsigned char CommandBuffer[80];
int Length;
if (Count > sizeof(CommandBuffer)-1) return -EINVAL;
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index 42e67ad6bd20..ab41be625a53 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -139,13 +139,12 @@ bail: spin_unlock_irqrestore(&emsgs_lock, flags);
return;
}
- mp = kmalloc(n, GFP_ATOMIC);
+ mp = kmemdup(msg, n, GFP_ATOMIC);
if (mp == NULL) {
printk(KERN_ERR "aoe: allocation failure, len=%ld\n", n);
goto bail;
}
- memcpy(mp, msg, n);
em->msg = mp;
em->flags |= EMFL_VALID;
em->len = n;
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 1c1b8e544aa2..e18c99140c0a 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -493,7 +493,7 @@ static int cciss_seq_open(struct inode *inode, struct file *file)
struct seq_file *seq = file->private_data;
if (!ret)
- seq->private = PDE(inode)->data;
+ seq->private = PDE_DATA(inode);
return ret;
}
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index da3311129a0c..ecd845cd28d8 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -54,13 +54,11 @@ static CommandList_struct *cmd_special_alloc(ctlr_info_t *h);
static void cmd_free(ctlr_info_t *h, CommandList_struct *c);
static void cmd_special_free(ctlr_info_t *h, CommandList_struct *c);
-static int cciss_scsi_proc_info(
- struct Scsi_Host *sh,
+static int cciss_scsi_write_info(struct Scsi_Host *sh,
char *buffer, /* data buffer */
- char **start, /* where data in buffer starts */
- off_t offset, /* offset from start of imaginary file */
- int length, /* length of data in buffer */
- int func); /* 0 == read, 1 == write */
+ int length); /* length of data in buffer */
+static int cciss_scsi_show_info(struct seq_file *m,
+ struct Scsi_Host *sh);
static int cciss_scsi_queue_command (struct Scsi_Host *h,
struct scsi_cmnd *cmd);
@@ -82,7 +80,8 @@ static struct scsi_host_template cciss_driver_template = {
.module = THIS_MODULE,
.name = "cciss",
.proc_name = "cciss",
- .proc_info = cciss_scsi_proc_info,
+ .write_info = cciss_scsi_write_info,
+ .show_info = cciss_scsi_show_info,
.queuecommand = cciss_scsi_queue_command,
.this_id = 7,
.cmd_per_lun = 1,
@@ -1302,59 +1301,54 @@ cciss_scsi_user_command(ctlr_info_t *h, int hostno, char *buffer, int length)
return length;
}
-
static int
-cciss_scsi_proc_info(struct Scsi_Host *sh,
+cciss_scsi_write_info(struct Scsi_Host *sh,
char *buffer, /* data buffer */
- char **start, /* where data in buffer starts */
- off_t offset, /* offset from start of imaginary file */
- int length, /* length of data in buffer */
- int func) /* 0 == read, 1 == write */
+ int length) /* length of data in buffer */
{
+ ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0];
+ if (h == NULL) /* This really shouldn't ever happen. */
+ return -EINVAL;
- int buflen, datalen;
- ctlr_info_t *h;
+ return cciss_scsi_user_command(h, sh->host_no,
+ buffer, length);
+}
+
+static int
+cciss_scsi_show_info(struct seq_file *m, struct Scsi_Host *sh)
+{
+
+ ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0];
int i;
- h = (ctlr_info_t *) sh->hostdata[0];
if (h == NULL) /* This really shouldn't ever happen. */
return -EINVAL;
- if (func == 0) { /* User is reading from /proc/scsi/ciss*?/?* */
- buflen = sprintf(buffer, "cciss%d: SCSI host: %d\n",
- h->ctlr, sh->host_no);
-
- /* this information is needed by apps to know which cciss
- device corresponds to which scsi host number without
- having to open a scsi target device node. The device
- information is not a duplicate of /proc/scsi/scsi because
- the two may be out of sync due to scsi hotplug, rather
- this info is for an app to be able to use to know how to
- get them back in sync. */
-
- for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) {
- struct cciss_scsi_dev_t *sd =
- &ccissscsi[h->ctlr].dev[i];
- buflen += sprintf(&buffer[buflen], "c%db%dt%dl%d %02d "
- "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
- sh->host_no, sd->bus, sd->target, sd->lun,
- sd->devtype,
- sd->scsi3addr[0], sd->scsi3addr[1],
- sd->scsi3addr[2], sd->scsi3addr[3],
- sd->scsi3addr[4], sd->scsi3addr[5],
- sd->scsi3addr[6], sd->scsi3addr[7]);
- }
- datalen = buflen - offset;
- if (datalen < 0) { /* they're reading past EOF. */
- datalen = 0;
- *start = buffer+buflen;
- } else
- *start = buffer + offset;
- return(datalen);
- } else /* User is writing to /proc/scsi/cciss*?/?* ... */
- return cciss_scsi_user_command(h, sh->host_no,
- buffer, length);
-}
+ seq_printf(m, "cciss%d: SCSI host: %d\n",
+ h->ctlr, sh->host_no);
+
+ /* this information is needed by apps to know which cciss
+ device corresponds to which scsi host number without
+ having to open a scsi target device node. The device
+ information is not a duplicate of /proc/scsi/scsi because
+ the two may be out of sync due to scsi hotplug, rather
+ this info is for an app to be able to use to know how to
+ get them back in sync. */
+
+ for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) {
+ struct cciss_scsi_dev_t *sd =
+ &ccissscsi[h->ctlr].dev[i];
+ seq_printf(m, "c%db%dt%dl%d %02d "
+ "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
+ sh->host_no, sd->bus, sd->target, sd->lun,
+ sd->devtype,
+ sd->scsi3addr[0], sd->scsi3addr[1],
+ sd->scsi3addr[2], sd->scsi3addr[3],
+ sd->scsi3addr[4], sd->scsi3addr[5],
+ sd->scsi3addr[6], sd->scsi3addr[7]);
+ }
+ return 0;
+}
/* cciss_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci
dma mapping and fills in the scatter gather entries of the
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 3f087133a25a..3b9e8ebcb96b 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -296,7 +296,7 @@ static int ida_proc_show(struct seq_file *m, void *v)
static int ida_proc_open(struct inode *inode, struct file *file)
{
- return single_open(file, ida_proc_show, PDE(inode)->data);
+ return single_open(file, ida_proc_show, PDE_DATA(inode));
}
static const struct file_operations ida_proc_fops = {
diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c
index 56672a61eb94..928adb815b09 100644
--- a/drivers/block/drbd/drbd_proc.c
+++ b/drivers/block/drbd/drbd_proc.c
@@ -314,7 +314,7 @@ static int drbd_seq_show(struct seq_file *seq, void *v)
static int drbd_proc_open(struct inode *inode, struct file *file)
{
if (try_module_get(THIS_MODULE))
- return single_open(file, drbd_seq_show, PDE(inode)->data);
+ return single_open(file, drbd_seq_show, PDE_DATA(inode));
return -ENODEV;
}
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index a9eccfc6079b..83c5ae0ed56b 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -757,7 +757,8 @@ static struct socket *drbd_wait_for_connect(struct drbd_tconn *tconn, struct acc
rcu_read_unlock();
timeo = connect_int * HZ;
- timeo += (random32() & 1) ? timeo / 7 : -timeo / 7; /* 28.5% random jitter */
+ /* 28.5% random jitter */
+ timeo += (prandom_u32() & 1) ? timeo / 7 : -timeo / 7;
err = wait_for_completion_interruptible_timeout(&ad->door_bell, timeo);
if (err <= 0)
@@ -953,7 +954,7 @@ retry:
conn_warn(tconn, "Error receiving initial packet\n");
sock_release(s);
randomize:
- if (random32() & 1)
+ if (prandom_u32() & 1)
goto retry;
}
}
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index dfe758382eaf..b2955b3f2cbc 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -230,9 +230,11 @@ static int __do_lo_send_write(struct file *file,
ssize_t bw;
mm_segment_t old_fs = get_fs();
+ file_start_write(file);
set_fs(get_ds());
bw = file->f_op->write(file, buf, len, &pos);
set_fs(old_fs);
+ file_end_write(file);
if (likely(bw == len))
return 0;
printk(KERN_ERR "loop: Write error at byte offset %llu, length %i.\n",
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 7fecc784be01..037288e7874d 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -856,6 +856,8 @@ static int __init nbd_init(void)
disk->queue->limits.discard_granularity = 512;
disk->queue->limits.max_discard_sectors = UINT_MAX;
disk->queue->limits.discard_zeroes_data = 0;
+ blk_queue_max_hw_sectors(disk->queue, 65536);
+ disk->queue->limits.max_sectors = 256;
}
if (register_blkdev(NBD_MAJOR, "nbd")) {
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 2e7de7a59bfc..e0588c6dd86f 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2648,7 +2648,7 @@ static int pkt_seq_show(struct seq_file *m, void *p)
static int pkt_seq_open(struct inode *inode, struct file *file)
{
- return single_open(file, pkt_seq_show, PDE(inode)->data);
+ return single_open(file, pkt_seq_show, PDE_DATA(inode));
}
static const struct file_operations pkt_proc_fops = {
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index 75e112d66006..06a2e53e5f37 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -525,7 +525,7 @@ static int ps3vram_proc_show(struct seq_file *m, void *v)
static int ps3vram_proc_open(struct inode *inode, struct file *file)
{
- return single_open(file, ps3vram_proc_show, PDE(inode)->data);
+ return single_open(file, ps3vram_proc_show, PDE_DATA(inode));
}
static const struct file_operations ps3vram_proc_fops = {
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 8ad21a25bc0d..64723953e1c9 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -100,96 +100,103 @@ static inline struct virtblk_req *virtblk_alloc_req(struct virtio_blk *vblk,
return vbr;
}
-static void virtblk_add_buf_wait(struct virtio_blk *vblk,
- struct virtblk_req *vbr,
- unsigned long out,
- unsigned long in)
+static int __virtblk_add_req(struct virtqueue *vq,
+ struct virtblk_req *vbr,
+ struct scatterlist *data_sg,
+ bool have_data)
{
- DEFINE_WAIT(wait);
+ struct scatterlist hdr, status, cmd, sense, inhdr, *sgs[6];
+ unsigned int num_out = 0, num_in = 0;
+ int type = vbr->out_hdr.type & ~VIRTIO_BLK_T_OUT;
- for (;;) {
- prepare_to_wait_exclusive(&vblk->queue_wait, &wait,
- TASK_UNINTERRUPTIBLE);
+ sg_init_one(&hdr, &vbr->out_hdr, sizeof(vbr->out_hdr));
+ sgs[num_out++] = &hdr;
- spin_lock_irq(vblk->disk->queue->queue_lock);
- if (virtqueue_add_buf(vblk->vq, vbr->sg, out, in, vbr,
- GFP_ATOMIC) < 0) {
- spin_unlock_irq(vblk->disk->queue->queue_lock);
- io_schedule();
- } else {
- virtqueue_kick(vblk->vq);
- spin_unlock_irq(vblk->disk->queue->queue_lock);
- break;
- }
+ /*
+ * If this is a packet command we need a couple of additional headers.
+ * Behind the normal outhdr we put a segment with the scsi command
+ * block, and before the normal inhdr we put the sense data and the
+ * inhdr with additional status information.
+ */
+ if (type == VIRTIO_BLK_T_SCSI_CMD) {
+ sg_init_one(&cmd, vbr->req->cmd, vbr->req->cmd_len);
+ sgs[num_out++] = &cmd;
+ }
+ if (have_data) {
+ if (vbr->out_hdr.type & VIRTIO_BLK_T_OUT)
+ sgs[num_out++] = data_sg;
+ else
+ sgs[num_out + num_in++] = data_sg;
}
- finish_wait(&vblk->queue_wait, &wait);
+ if (type == VIRTIO_BLK_T_SCSI_CMD) {
+ sg_init_one(&sense, vbr->req->sense, SCSI_SENSE_BUFFERSIZE);
+ sgs[num_out + num_in++] = &sense;
+ sg_init_one(&inhdr, &vbr->in_hdr, sizeof(vbr->in_hdr));
+ sgs[num_out + num_in++] = &inhdr;
+ }
+
+ sg_init_one(&status, &vbr->status, sizeof(vbr->status));
+ sgs[num_out + num_in++] = &status;
+
+ return virtqueue_add_sgs(vq, sgs, num_out, num_in, vbr, GFP_ATOMIC);
}
-static inline void virtblk_add_req(struct virtblk_req *vbr,
- unsigned int out, unsigned int in)
+static void virtblk_add_req(struct virtblk_req *vbr, bool have_data)
{
struct virtio_blk *vblk = vbr->vblk;
+ DEFINE_WAIT(wait);
+ int ret;
spin_lock_irq(vblk->disk->queue->queue_lock);
- if (unlikely(virtqueue_add_buf(vblk->vq, vbr->sg, out, in, vbr,
- GFP_ATOMIC) < 0)) {
+ while (unlikely((ret = __virtblk_add_req(vblk->vq, vbr, vbr->sg,
+ have_data)) < 0)) {
+ prepare_to_wait_exclusive(&vblk->queue_wait, &wait,
+ TASK_UNINTERRUPTIBLE);
+
spin_unlock_irq(vblk->disk->queue->queue_lock);
- virtblk_add_buf_wait(vblk, vbr, out, in);
- return;
+ io_schedule();
+ spin_lock_irq(vblk->disk->queue->queue_lock);
+
+ finish_wait(&vblk->queue_wait, &wait);
}
+
virtqueue_kick(vblk->vq);
spin_unlock_irq(vblk->disk->queue->queue_lock);
}
-static int virtblk_bio_send_flush(struct virtblk_req *vbr)
+static void virtblk_bio_send_flush(struct virtblk_req *vbr)
{
- unsigned int out = 0, in = 0;
-
vbr->flags |= VBLK_IS_FLUSH;
vbr->out_hdr.type = VIRTIO_BLK_T_FLUSH;
vbr->out_hdr.sector = 0;
vbr->out_hdr.ioprio = 0;
- sg_set_buf(&vbr->sg[out++], &vbr->out_hdr, sizeof(vbr->out_hdr));
- sg_set_buf(&vbr->sg[out + in++], &vbr->status, sizeof(vbr->status));
-
- virtblk_add_req(vbr, out, in);
- return 0;
+ virtblk_add_req(vbr, false);
}
-static int virtblk_bio_send_data(struct virtblk_req *vbr)
+static void virtblk_bio_send_data(struct virtblk_req *vbr)
{
struct virtio_blk *vblk = vbr->vblk;
- unsigned int num, out = 0, in = 0;
struct bio *bio = vbr->bio;
+ bool have_data;
vbr->flags &= ~VBLK_IS_FLUSH;
vbr->out_hdr.type = 0;
vbr->out_hdr.sector = bio->bi_sector;
vbr->out_hdr.ioprio = bio_prio(bio);
- sg_set_buf(&vbr->sg[out++], &vbr->out_hdr, sizeof(vbr->out_hdr));
-
- num = blk_bio_map_sg(vblk->disk->queue, bio, vbr->sg + out);
-
- sg_set_buf(&vbr->sg[num + out + in++], &vbr->status,
- sizeof(vbr->status));
-
- if (num) {
- if (bio->bi_rw & REQ_WRITE) {
+ if (blk_bio_map_sg(vblk->disk->queue, bio, vbr->sg)) {
+ have_data = true;
+ if (bio->bi_rw & REQ_WRITE)
vbr->out_hdr.type |= VIRTIO_BLK_T_OUT;
- out += num;
- } else {
+ else
vbr->out_hdr.type |= VIRTIO_BLK_T_IN;
- in += num;
- }
- }
+ } else
+ have_data = false;
- virtblk_add_req(vbr, out, in);
-
- return 0;
+ virtblk_add_req(vbr, have_data);
}
static void virtblk_bio_send_data_work(struct work_struct *work)
@@ -298,7 +305,7 @@ static void virtblk_done(struct virtqueue *vq)
static bool do_req(struct request_queue *q, struct virtio_blk *vblk,
struct request *req)
{
- unsigned long num, out = 0, in = 0;
+ unsigned int num;
struct virtblk_req *vbr;
vbr = virtblk_alloc_req(vblk, GFP_ATOMIC);
@@ -335,40 +342,15 @@ static bool do_req(struct request_queue *q, struct virtio_blk *vblk,
}
}
- sg_set_buf(&vblk->sg[out++], &vbr->out_hdr, sizeof(vbr->out_hdr));
-
- /*
- * If this is a packet command we need a couple of additional headers.
- * Behind the normal outhdr we put a segment with the scsi command
- * block, and before the normal inhdr we put the sense data and the
- * inhdr with additional status information before the normal inhdr.
- */
- if (vbr->req->cmd_type == REQ_TYPE_BLOCK_PC)
- sg_set_buf(&vblk->sg[out++], vbr->req->cmd, vbr->req->cmd_len);
-
- num = blk_rq_map_sg(q, vbr->req, vblk->sg + out);
-
- if (vbr->req->cmd_type == REQ_TYPE_BLOCK_PC) {
- sg_set_buf(&vblk->sg[num + out + in++], vbr->req->sense, SCSI_SENSE_BUFFERSIZE);
- sg_set_buf(&vblk->sg[num + out + in++], &vbr->in_hdr,
- sizeof(vbr->in_hdr));
- }
-
- sg_set_buf(&vblk->sg[num + out + in++], &vbr->status,
- sizeof(vbr->status));
-
+ num = blk_rq_map_sg(q, vbr->req, vblk->sg);
if (num) {
- if (rq_data_dir(vbr->req) == WRITE) {
+ if (rq_data_dir(vbr->req) == WRITE)
vbr->out_hdr.type |= VIRTIO_BLK_T_OUT;
- out += num;
- } else {
+ else
vbr->out_hdr.type |= VIRTIO_BLK_T_IN;
- in += num;
- }
}
- if (virtqueue_add_buf(vblk->vq, vblk->sg, out, in, vbr,
- GFP_ATOMIC) < 0) {
+ if (__virtblk_add_req(vblk->vq, vbr, vblk->sg, num) < 0) {
mempool_free(vbr, vblk->pool);
return false;
}
@@ -539,6 +521,7 @@ static void virtblk_config_changed_work(struct work_struct *work)
struct virtio_device *vdev = vblk->vdev;
struct request_queue *q = vblk->disk->queue;
char cap_str_2[10], cap_str_10[10];
+ char *envp[] = { "RESIZE=1", NULL };
u64 capacity, size;
mutex_lock(&vblk->config_lock);
@@ -568,6 +551,7 @@ static void virtblk_config_changed_work(struct work_struct *work)
set_capacity(vblk->disk, capacity);
revalidate_disk(vblk->disk);
+ kobject_uevent_env(&disk_to_dev(vblk->disk)->kobj, KOBJ_CHANGE, envp);
done:
mutex_unlock(&vblk->config_lock);
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-11 18:50:55 +0300