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-rw-r--r--drivers/block/aoe/aoenet.c2
-rw-r--r--drivers/block/cciss.c7
-rw-r--r--drivers/block/cpqarray.c1
-rw-r--r--drivers/block/floppy.c3
-rw-r--r--drivers/block/loop.c48
-rw-r--r--drivers/block/ub.c11
6 files changed, 59 insertions, 13 deletions
diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
index c6099ba9a4b..ce0d62cd71b 100644
--- a/drivers/block/aoe/aoenet.c
+++ b/drivers/block/aoe/aoenet.c
@@ -151,7 +151,7 @@ exit:
return 0;
}
-static struct packet_type aoe_pt = {
+static struct packet_type aoe_pt __read_mostly = {
.type = __constant_htons(ETH_P_AOE),
.func = aoenet_rcv,
};
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 4f9b6d79201..5d0e135824f 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3898,6 +3898,13 @@ static struct pci_driver cciss_pci_driver = {
*/
static int __init cciss_init(void)
{
+ /*
+ * The hardware requires that commands are aligned on a 64-bit
+ * boundary. Given that we use pci_alloc_consistent() to allocate an
+ * array of them, the size must be a multiple of 8 bytes.
+ */
+ BUILD_BUG_ON(sizeof(CommandList_struct) % 8);
+
printk(KERN_INFO DRIVER_NAME "\n");
/* Register for our PCI devices */
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 5d39df14ed9..ca268ca1115 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -617,6 +617,7 @@ static int cpqarray_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
int i;
c->pci_dev = pdev;
+ pci_set_master(pdev);
if (pci_enable_device(pdev)) {
printk(KERN_ERR "cpqarray: Unable to Enable PCI device\n");
return -1;
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 83d8ed39433..c2c95e61450 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4135,10 +4135,9 @@ static int have_no_fdc = -ENODEV;
static ssize_t floppy_cmos_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct platform_device *p;
+ struct platform_device *p = to_platform_device(dev);
int drive;
- p = container_of(dev, struct platform_device,dev);
drive = p->id;
return sprintf(buf, "%X\n", UDP->cmos);
}
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bf034557767..2621ed2ce6d 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -474,10 +474,35 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
int ret;
pos = ((loff_t) bio->bi_sector << 9) + lo->lo_offset;
- if (bio_rw(bio) == WRITE)
+
+ if (bio_rw(bio) == WRITE) {
+ int barrier = bio_barrier(bio);
+ struct file *file = lo->lo_backing_file;
+
+ if (barrier) {
+ if (unlikely(!file->f_op->fsync)) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ ret = vfs_fsync(file, file->f_path.dentry, 0);
+ if (unlikely(ret)) {
+ ret = -EIO;
+ goto out;
+ }
+ }
+
ret = lo_send(lo, bio, pos);
- else
+
+ if (barrier && !ret) {
+ ret = vfs_fsync(file, file->f_path.dentry, 0);
+ if (unlikely(ret))
+ ret = -EIO;
+ }
+ } else
ret = lo_receive(lo, bio, lo->lo_blocksize, pos);
+
+out:
return ret;
}
@@ -826,6 +851,9 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
lo->lo_queue->queuedata = lo;
lo->lo_queue->unplug_fn = loop_unplug;
+ if (!(lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync)
+ blk_queue_ordered(lo->lo_queue, QUEUE_ORDERED_DRAIN, NULL);
+
set_capacity(lo->lo_disk, size);
bd_set_size(bdev, size << 9);
@@ -941,11 +969,18 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev)
bd_set_size(bdev, 0);
mapping_set_gfp_mask(filp->f_mapping, gfp);
lo->lo_state = Lo_unbound;
- fput(filp);
/* This is safe: open() is still holding a reference. */
module_put(THIS_MODULE);
if (max_part > 0)
ioctl_by_bdev(bdev, BLKRRPART, 0);
+ mutex_unlock(&lo->lo_ctl_mutex);
+ /*
+ * Need not hold lo_ctl_mutex to fput backing file.
+ * Calling fput holding lo_ctl_mutex triggers a circular
+ * lock dependency possibility warning as fput can take
+ * bd_mutex which is usually taken before lo_ctl_mutex.
+ */
+ fput(filp);
return 0;
}
@@ -1163,7 +1198,7 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode,
struct loop_device *lo = bdev->bd_disk->private_data;
int err;
- mutex_lock(&lo->lo_ctl_mutex);
+ mutex_lock_nested(&lo->lo_ctl_mutex, 1);
switch (cmd) {
case LOOP_SET_FD:
err = loop_set_fd(lo, mode, bdev, arg);
@@ -1172,7 +1207,10 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode,
err = loop_change_fd(lo, bdev, arg);
break;
case LOOP_CLR_FD:
+ /* loop_clr_fd would have unlocked lo_ctl_mutex on success */
err = loop_clr_fd(lo, bdev);
+ if (!err)
+ goto out_unlocked;
break;
case LOOP_SET_STATUS:
err = loop_set_status_old(lo, (struct loop_info __user *) arg);
@@ -1190,6 +1228,8 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode,
err = lo->ioctl ? lo->ioctl(lo, cmd, arg) : -EINVAL;
}
mutex_unlock(&lo->lo_ctl_mutex);
+
+out_unlocked:
return err;
}
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 12fb816db7b..69b7f8e7759 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -391,7 +391,7 @@ static int ub_probe_lun(struct ub_dev *sc, int lnum);
*/
#ifdef CONFIG_USB_LIBUSUAL
-#define ub_usb_ids storage_usb_ids
+#define ub_usb_ids usb_storage_usb_ids
#else
static struct usb_device_id ub_usb_ids[] = {
@@ -2146,10 +2146,9 @@ static int ub_get_pipes(struct ub_dev *sc, struct usb_device *dev,
ep = &altsetting->endpoint[i].desc;
/* Is it a BULK endpoint? */
- if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
- == USB_ENDPOINT_XFER_BULK) {
+ if (usb_endpoint_xfer_bulk(ep)) {
/* BULK in or out? */
- if (ep->bEndpointAddress & USB_DIR_IN) {
+ if (usb_endpoint_dir_in(ep)) {
if (ep_in == NULL)
ep_in = ep;
} else {
@@ -2168,9 +2167,9 @@ static int ub_get_pipes(struct ub_dev *sc, struct usb_device *dev,
sc->send_ctrl_pipe = usb_sndctrlpipe(dev, 0);
sc->recv_ctrl_pipe = usb_rcvctrlpipe(dev, 0);
sc->send_bulk_pipe = usb_sndbulkpipe(dev,
- ep_out->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ usb_endpoint_num(ep_out));
sc->recv_bulk_pipe = usb_rcvbulkpipe(dev,
- ep_in->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ usb_endpoint_num(ep_in));
return 0;
}