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[PATCH COMMIT] diff-merge-2.6.16.18-20060530 [message #3466]

Tue, 30 May 2006 10:18

xemul
Messages: 248
Registered: November 2005

Senior Member

Added to 026test013

Patch from OpenVZ team <devel@openvz.org>
Merged 2.6.16.18 from /linux/kernel/git/stable/linux-2.6.16.y

From: OpenVZ team <devel@openvz.org>
Date: Tue, 30 May 2006 10:02:30 +0000 (+0400)
Subject: Merged 2.6.16.18 from /linux/kernel/git/stable/linux-2.6.16.y
X-Git-Url: http://10.0.101.105/cgi-bin/gitweb.cgi?p=kernel;a=commitdiff;h=d08484cb38711ac57143c7967c7128580a0fb133

Merged 2.6.16.18 from /linux/kernel/git/stable/linux-2.6.16.y
---

--- a/block/elevator.c
+++ b/block/elevator.c
@@ -314,6 +314,7 @@ void elv_insert(request_queue_t *q, stru
{
struct list_head *pos;
unsigned ordseq;
+ int unplug_it = 1;

rq->q = q;

@@ -378,6 +379,11 @@ void elv_insert(request_queue_t *q, stru
}

list_add_tail(&rq->queuelist, pos);
+ /*
+ * most requeues happen because of a busy condition, don't
+ * force unplug of the queue for that case.
+ */
+ unplug_it = 0;
break;

default:
@@ -386,7 +392,7 @@ void elv_insert(request_queue_t *q, stru
BUG();
}

- if (blk_queue_plugged(q)) {
+ if (unplug_it && blk_queue_plugged(q)) {
int nrq = q->rq.count[READ] + q->rq.count[WRITE]
- q->in_flight;

--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -1719,8 +1719,21 @@ void blk_run_queue(struct request_queue

spin_lock_irqsave(q->queue_lock, flags);
blk_remove_plug(q);
- if (!elv_queue_empty(q))
- q->request_fn(q);
+
+ /*
+ * Only recurse once to avoid overrunning the stack, let the unplug
+ * handling reinvoke the handler shortly if we already got there.
+ */
+ if (!elv_queue_empty(q)) {
+ if (!test_and_set_bit(QUEUE_FLAG_REENTER, &q->queue_flags)) {
+ q->request_fn(q);
+ clear_bit(QUEUE_FLAG_REENTER, &q->queue_flags);
+ } else {
+ blk_plug_device(q);
+ kblockd_schedule_work(&q->unplug_work);
+ }
+ }
+
spin_unlock_irqrestore(q->queue_lock, flags);
}
EXPORT_SYMBOL(blk_run_queue);
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -704,6 +704,9 @@ static void ub_cleanup(struct ub_dev *sc
kfree(lun);
}

+ usb_set_intfdata(sc->intf, NULL);
+ usb_put_intf(sc->intf);
+ usb_put_dev(sc->dev);
kfree(sc);
}

@@ -2428,7 +2431,12 @@ static int ub_probe(struct usb_interface
// sc->ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
usb_set_intfdata(intf, sc);
usb_get_dev(sc->dev);
- // usb_get_intf(sc->intf); /* Do we need this? */
+ /*
+ * Since we give the interface struct to the block level through
+ * disk->driverfs_dev, we have to pin it. Otherwise, block_uevent
+ * oopses on close after a disconnect (kernels 2.6.16 and up).
+ */
+ usb_get_intf(sc->intf);

snprintf(sc->name, 12, DRV_NAME "(%d.%d)",
sc->dev->bus->busnum, sc->dev->devnum);
@@ -2509,7 +2517,7 @@ static int ub_probe(struct usb_interface
err_diag:
err_dev_desc:
usb_set_intfdata(intf, NULL);
- // usb_put_intf(sc->intf);
+ usb_put_intf(sc->intf);
usb_put_dev(sc->dev);
kfree(sc);
err_core:
@@ -2688,12 +2696,6 @@ static void ub_disconnect(struct usb_int
*/

device_remove_file(&sc->intf->dev, &dev_attr_diag);
- usb_set_intfdata(intf, NULL);
- // usb_put_intf(sc->intf);
- sc->intf = NULL;
- usb_put_dev(sc->dev);
- sc->dev = NULL;
-
ub_put(sc);
}

--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -2010,10 +2010,6 @@ static int __init cmm_init(void)
if (!cmm_class)
return -1;

- rc = pcmcia_register_driver(&cm4000_driver);
- if (rc < 0)
- return rc;
-
major = register_chrdev(0, DEVICE_NAME, &cm4000_fops);
if (major < 0) {
printk(KERN_WARNING MODULE_NAME
@@ -2021,6 +2017,12 @@ static int __init cmm_init(void)
return -1;
}

+ rc = pcmcia_register_driver(&cm4000_driver);
+ if (rc < 0) {
+ unregister_chrdev(major, DEVICE_NAME);
+ return rc;
+ }
+
return 0;
}

--- a/drivers/char/pcmcia/cm4040_cs.c
+++ b/drivers/char/pcmcia/cm4040_cs.c
@@ -769,16 +769,19 @@ static int __init cm4040_init(void)
if (!cmx_class)
return -1;

- rc = pcmcia_register_driver(&reader_driver);
- if (rc < 0)
- return rc;
-
major = register_chrdev(0, DEVICE_NAME, &reader_fops);
if (major < 0) {
printk(KERN_WARNING MODULE_NAME
": could not get major number\n");
return -1;
}
+
+ rc = pcmcia_register_driver(&reader_driver);
+ if (rc < 0) {
+ unregister_chrdev(major, DEVICE_NAME);
+ return rc;
+ }
+
return 0;
}

--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -440,7 +440,6 @@ static int __init scx200_acb_create(int
struct scx200_acb_iface *iface;
struct i2c_adapter *adapter;
int rc = 0;
- char description[64];

iface = kzalloc(sizeof(*iface), GFP_KERNEL);
if (!iface) {
@@ -459,8 +458,7 @@ static int __init scx200_acb_create(int

init_MUTEX(&iface->sem);

- snprintf(description, sizeof(description), "NatSemi SCx200 ACCESS.bus [%s]", adapter->name);
- if (request_region(base, 8, description) == 0) {
+ if (!request_region(base, 8, adapter->name)) {
dev_err(&adapter->dev, "can't allocate io 0x%x-0x%x\n",
base, base + 8-1);
rc = -EBUSY;
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1436,9 +1436,9 @@ static void raid10d(mddev_t *mddev)
sl--;
d = r10_bio->devs[sl].devnum;
rdev = conf->mirrors[d].rdev;
- atomic_add(s, &rdev->corrected_errors);
if (rdev &&
test_bit(In_sync, &rdev->flags)) {
+ atomic_add(s, &rdev->corrected_errors);
if (sync_page_io(rdev->bdev,
r10_bio->devs[sl].addr +
sect + rdev->data_offset,
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -7368,21 +7368,23 @@ static int tg3_get_settings(struct net_d
cmd->supported |= (SUPPORTED_1000baseT_Half |
SUPPORTED_1000baseT_Full);

- if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
+ if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)) {
cmd->supported |= (SUPPORTED_100baseT_Half |
SUPPORTED_100baseT_Full |
SUPPORTED_10baseT_Half |
SUPPORTED_10baseT_Full |
SUPPORTED_MII);
- else
+ cmd->port = PORT_TP;
+ } else {
cmd->supported |= SUPPORTED_FIBRE;
+ cmd->port = PORT_FIBRE;
+ }

cmd->advertising = tp->link_config.advertising;
if (netif_running(dev)) {
cmd->speed = tp->link_config.active_speed;
cmd->duplex = tp->link_config.active_duplex;
}
- cmd->port = 0;
cmd->phy_address = PHY_ADDR;
cmd->transceiver = 0;
cmd->autoneg = tp->link_config.autoneg;
--- a/drivers/net/via-rhine.c
+++ b/drivers/net/via-rhine.c
@@ -129,6 +129,7 @@
- Massive clean-up
- Rewrite PHY, media handling (remove options, full_duplex, backoff)
- Fix Tx engine race for good
+ - Craig Brind: Zero padded aligned buffers for short packets.

*/

@@ -1306,7 +1307,12 @@ static int rhine_start_tx(struct sk_buff
rp->stats.tx_dropped++;
return 0;
}
+
+ /* Padding is not copied and so must be redone. */
skb_copy_and_csum_dev(skb, rp->tx_buf[entry]);
+ if (skb->len < ETH_ZLEN)
+ memset(rp->tx_buf[entry] + skb->len, 0,
+ ETH_ZLEN - skb->len);
rp->tx_skbuff_dma[entry] = 0;
rp->tx_ring[entry].addr = cpu_to_le32(rp->tx_bufs_dma +
(rp->tx_buf[entry] -
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -33,13 +33,10 @@ acpi_query_osc (
acpi_status status;
struct acpi_object_list input;
union acpi_object in_params[4];
- struct acpi_buffer output;
- union acpi_object out_obj;
+ struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
+ union acpi_object *out_obj;
u32 osc_dw0;

- /* Setting up output buffer */
- output.length = sizeof(out_obj) + 3*sizeof(u32);
- output.pointer = &out_obj;

/* Setting up input parameters */
input.count = 4;
@@ -61,12 +58,15 @@ acpi_query_osc (
"Evaluate _OSC Set fails. Status = 0x%04x\n", status);
return status;
}
- if (out_obj.type != ACPI_TYPE_BUFFER) {
+ out_obj = output.pointer;
+
+ if (out_obj->type != ACPI_TYPE_BUFFER) {
printk(KERN_DEBUG
"Evaluate _OSC returns wrong type\n");
- return AE_TYPE;
+ status = AE_TYPE;
+ goto query_osc_out;
}
- osc_dw0 = *((u32 *) out_obj.buffer.pointer);
+ osc_dw0 = *((u32 *) out_obj->buffer.pointer);
if (osc_dw0) {
if (osc_dw0 & OSC_REQUEST_ERROR)
printk(KERN_DEBUG "_OSC request fails\n");
@@ -76,15 +76,21 @@ acpi_query_osc (
printk(KERN_DEBUG "_OSC invalid revision\n");
if (osc_dw0 & OSC_CAPABILITIES_MASK_ERROR) {
/* Update Global Control Set */
- global_ctrlsets = *((u32 *)(out_obj.buffer.pointer+8));
- return AE_OK;
+ global_ctrlsets = *((u32 *)(out_obj->buffer.pointer+8));
+ status = AE_OK;
+ goto query_osc_out;
}
- return AE_ERROR;
+ status = AE_ERROR;
+ goto query_osc_out;
}

/* Update Global Control Set */
- global_ctrlsets = *((u32 *)(out_obj.buffer.pointer + 8));
- return AE_OK;
+ global_ctrlsets = *((u32 *)(out_obj->buffer.pointer + 8));
+ status = AE_OK;
+
+query_osc_out:
+ kfree(output.pointer);
+ return status;
}

@@ -96,14 +102,10 @@ acpi_run_osc (
acpi_status status;
struct acpi_object_list input;
union acpi_object in_params[4];
- struct acpi_buffer output;
- union acpi_object out_obj;
+ struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
+ union acpi_object *out_obj;
u32 osc_dw0;

- /* Setting up output buffer */
- output.length = sizeof(out_obj) + 3*sizeof(u32);
- output.pointer = &out_obj;
-
/* Setting up input parameters */
input.count = 4;
input.pointer = in_params;
@@ -124,12 +126,14 @@ acpi_run_osc (
"Evaluate _OSC Set fails. Status = 0x%04x\n", status);
return status;
}
- if (out_obj.type != ACPI_TYPE_BUFFER) {
+ out_obj = output.pointer;
+ if (out_obj- ...

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