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-rw-r--r--drivers/block/brd.c5
-rw-r--r--drivers/md/dm-bio-list.h117
-rw-r--r--drivers/md/dm-delay.c2
-rw-r--r--drivers/md/dm-mpath.c1
-rw-r--r--drivers/md/dm-raid1.c1
-rw-r--r--drivers/md/dm-region-hash.c1
-rw-r--r--drivers/md/dm-snap.c1
-rw-r--r--drivers/md/dm.c1
-rw-r--r--drivers/md/raid1.c1
-rw-r--r--drivers/md/raid10.c1
-rw-r--r--drivers/s390/block/dasd.c37
-rw-r--r--drivers/s390/block/dasd_eckd.c16
-rw-r--r--drivers/s390/cio/qdio_main.c43
13 files changed, 43 insertions, 184 deletions
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index bdd4f5f4557..5f7e64ba87e 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -275,8 +275,10 @@ static int brd_do_bvec(struct brd_device *brd, struct page *page,
if (rw == READ) {
copy_from_brd(mem + off, brd, sector, len);
flush_dcache_page(page);
- } else
+ } else {
+ flush_dcache_page(page);
copy_to_brd(brd, mem + off, sector, len);
+ }
kunmap_atomic(mem, KM_USER0);
out:
@@ -436,6 +438,7 @@ static struct brd_device *brd_alloc(int i)
if (!brd->brd_queue)
goto out_free_dev;
blk_queue_make_request(brd->brd_queue, brd_make_request);
+ blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG, NULL);
blk_queue_max_sectors(brd->brd_queue, 1024);
blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY);
diff --git a/drivers/md/dm-bio-list.h b/drivers/md/dm-bio-list.h
deleted file mode 100644
index 345098b4ca7..00000000000
--- a/drivers/md/dm-bio-list.h
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (C) 2004 Red Hat UK Ltd.
- *
- * This file is released under the GPL.
- */
-
-#ifndef DM_BIO_LIST_H
-#define DM_BIO_LIST_H
-
-#include <linux/bio.h>
-
-#ifdef CONFIG_BLOCK
-
-struct bio_list {
- struct bio *head;
- struct bio *tail;
-};
-
-static inline int bio_list_empty(const struct bio_list *bl)
-{
- return bl->head == NULL;
-}
-
-static inline void bio_list_init(struct bio_list *bl)
-{
- bl->head = bl->tail = NULL;
-}
-
-#define bio_list_for_each(bio, bl) \
- for (bio = (bl)->head; bio; bio = bio->bi_next)
-
-static inline unsigned bio_list_size(const struct bio_list *bl)
-{
- unsigned sz = 0;
- struct bio *bio;
-
- bio_list_for_each(bio, bl)
- sz++;
-
- return sz;
-}
-
-static inline void bio_list_add(struct bio_list *bl, struct bio *bio)
-{
- bio->bi_next = NULL;
-
- if (bl->tail)
- bl->tail->bi_next = bio;
- else
- bl->head = bio;
-
- bl->tail = bio;
-}
-
-static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio)
-{
- bio->bi_next = bl->head;
-
- bl->head = bio;
-
- if (!bl->tail)
- bl->tail = bio;
-}
-
-static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)
-{
- if (!bl2->head)
- return;
-
- if (bl->tail)
- bl->tail->bi_next = bl2->head;
- else
- bl->head = bl2->head;
-
- bl->tail = bl2->tail;
-}
-
-static inline void bio_list_merge_head(struct bio_list *bl,
- struct bio_list *bl2)
-{
- if (!bl2->head)
- return;
-
- if (bl->head)
- bl2->tail->bi_next = bl->head;
- else
- bl->tail = bl2->tail;
-
- bl->head = bl2->head;
-}
-
-static inline struct bio *bio_list_pop(struct bio_list *bl)
-{
- struct bio *bio = bl->head;
-
- if (bio) {
- bl->head = bl->head->bi_next;
- if (!bl->head)
- bl->tail = NULL;
-
- bio->bi_next = NULL;
- }
-
- return bio;
-}
-
-static inline struct bio *bio_list_get(struct bio_list *bl)
-{
- struct bio *bio = bl->head;
-
- bl->head = bl->tail = NULL;
-
- return bio;
-}
-
-#endif /* CONFIG_BLOCK */
-#endif
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index 59ee1b015d2..559dbb52bc8 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -15,8 +15,6 @@
#include <linux/device-mapper.h>
-#include "dm-bio-list.h"
-
#define DM_MSG_PREFIX "delay"
struct delay_c {
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 095f77bf968..6a386ab4f7e 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -8,7 +8,6 @@
#include <linux/device-mapper.h>
#include "dm-path-selector.h"
-#include "dm-bio-list.h"
#include "dm-bio-record.h"
#include "dm-uevent.h"
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 536ef0bef15..076fbb4e967 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -5,7 +5,6 @@
* This file is released under the GPL.
*/
-#include "dm-bio-list.h"
#include "dm-bio-record.h"
#include <linux/init.h>
diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c
index 59f8d9df9e1..7b899be0b08 100644
--- a/drivers/md/dm-region-hash.c
+++ b/drivers/md/dm-region-hash.c
@@ -14,7 +14,6 @@
#include <linux/vmalloc.h>
#include "dm.h"
-#include "dm-bio-list.h"
#define DM_MSG_PREFIX "region hash"
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 981a0413068..d73f17fc777 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -22,7 +22,6 @@
#include <linux/workqueue.h>
#include "dm-exception-store.h"
-#include "dm-bio-list.h"
#define DM_MSG_PREFIX "snapshots"
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 8a994be035b..424f7b048c3 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -6,7 +6,6 @@
*/
#include "dm.h"
-#include "dm-bio-list.h"
#include "dm-uevent.h"
#include <linux/init.h>
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 274b491a11c..36df9109cde 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -35,7 +35,6 @@
#include <linux/blkdev.h>
#include <linux/seq_file.h>
#include "md.h"
-#include "dm-bio-list.h"
#include "raid1.h"
#include "bitmap.h"
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index e293d92641a..81a54f17417 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -22,7 +22,6 @@
#include <linux/blkdev.h>
#include <linux/seq_file.h>
#include "md.h"
-#include "dm-bio-list.h"
#include "raid10.h"
#include "bitmap.h"
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 0570794ccf1..d1815272c43 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -20,6 +20,7 @@
#include <linux/slab.h>
#include <linux/buffer_head.h>
#include <linux/hdreg.h>
+#include <linux/async.h>
#include <asm/ccwdev.h>
#include <asm/ebcdic.h>
@@ -480,8 +481,10 @@ static void dasd_change_state(struct dasd_device *device)
if (rc && rc != -EAGAIN)
device->target = device->state;
- if (device->state == device->target)
+ if (device->state == device->target) {
wake_up(&dasd_init_waitq);
+ dasd_put_device(device);
+ }
/* let user-space know that the device status changed */
kobject_uevent(&device->cdev->dev.kobj, KOBJ_CHANGE);
@@ -513,12 +516,15 @@ void dasd_kick_device(struct dasd_device *device)
*/
void dasd_set_target_state(struct dasd_device *device, int target)
{
+ dasd_get_device(device);
/* If we are in probeonly mode stop at DASD_STATE_READY. */
if (dasd_probeonly && target > DASD_STATE_READY)
target = DASD_STATE_READY;
if (device->target != target) {
- if (device->state == target)
+ if (device->state == target) {
wake_up(&dasd_init_waitq);
+ dasd_put_device(device);
+ }
device->target = target;
}
if (device->state != device->target)
@@ -2148,6 +2154,22 @@ dasd_exit(void)
* SECTION: common functions for ccw_driver use
*/
+static void dasd_generic_auto_online(void *data, async_cookie_t cookie)
+{
+ struct ccw_device *cdev = data;
+ int ret;
+
+ ret = ccw_device_set_online(cdev);
+ if (ret)
+ pr_warning("%s: Setting the DASD online failed with rc=%d\n",
+ dev_name(&cdev->dev), ret);
+ else {
+ struct dasd_device *device = dasd_device_from_cdev(cdev);
+ wait_event(dasd_init_waitq, _wait_for_device(device));
+ dasd_put_device(device);
+ }
+}
+
/*
* Initial attempt at a probe function. this can be simplified once
* the other detection code is gone.
@@ -2180,10 +2202,7 @@ int dasd_generic_probe(struct ccw_device *cdev,
*/
if ((dasd_get_feature(cdev, DASD_FEATURE_INITIAL_ONLINE) > 0 ) ||
(dasd_autodetect && dasd_busid_known(dev_name(&cdev->dev)) != 0))
- ret = ccw_device_set_online(cdev);
- if (ret)
- pr_warning("%s: Setting the DASD online failed with rc=%d\n",
- dev_name(&cdev->dev), ret);
+ async_schedule(dasd_generic_auto_online, cdev);
return 0;
}
@@ -2290,13 +2309,7 @@ int dasd_generic_set_online(struct ccw_device *cdev,
} else
pr_debug("dasd_generic device %s found\n",
dev_name(&cdev->dev));
-
- /* FIXME: we have to wait for the root device but we don't want
- * to wait for each single device but for all at once. */
- wait_event(dasd_init_waitq, _wait_for_device(device));
-
dasd_put_device(device);
-
return rc;
}
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 21254793c60..cb52da033f0 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -2019,15 +2019,23 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
ccw++;
recid += count;
new_track = 0;
+ /* first idaw for a ccw may start anywhere */
+ if (!idaw_dst)
+ idaw_dst = dst;
}
- /* If we start a new idaw, everything is fine and the
- * start of the new idaw is the start of this segment.
+ /* If we start a new idaw, we must make sure that it
+ * starts on an IDA_BLOCK_SIZE boundary.
* If we continue an idaw, we must make sure that the
* current segment begins where the so far accumulated
* idaw ends
*/
- if (!idaw_dst)
- idaw_dst = dst;
+ if (!idaw_dst) {
+ if (__pa(dst) & (IDA_BLOCK_SIZE-1)) {
+ dasd_sfree_request(cqr, startdev);
+ return ERR_PTR(-ERANGE);
+ } else
+ idaw_dst = dst;
+ }
if ((idaw_dst + idaw_len) != dst) {
dasd_sfree_request(cqr, startdev);
return ERR_PTR(-ERANGE);
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 9e8a2914259..accd957454e 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -881,42 +881,6 @@ no_handler:
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
}
-static void qdio_call_shutdown(struct work_struct *work)
-{
- struct ccw_device_private *priv;
- struct ccw_device *cdev;
-
- priv = container_of(work, struct ccw_device_private, kick_work);
- cdev = priv->cdev;
- qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
- put_device(&cdev->dev);
-}
-
-static void qdio_int_error(struct ccw_device *cdev)
-{
- struct qdio_irq *irq_ptr = cdev->private->qdio_data;
-
- switch (irq_ptr->state) {
- case QDIO_IRQ_STATE_INACTIVE:
- case QDIO_IRQ_STATE_CLEANUP:
- qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
- break;
- case QDIO_IRQ_STATE_ESTABLISHED:
- case QDIO_IRQ_STATE_ACTIVE:
- qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
- if (get_device(&cdev->dev)) {
- /* Can't call shutdown from interrupt context. */
- PREPARE_WORK(&cdev->private->kick_work,
- qdio_call_shutdown);
- queue_work(ccw_device_work, &cdev->private->kick_work);
- }
- break;
- default:
- WARN_ON(1);
- }
- wake_up(&cdev->private->wait_q);
-}
-
static int qdio_establish_check_errors(struct ccw_device *cdev, int cstat,
int dstat)
{
@@ -973,10 +937,8 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
switch (PTR_ERR(irb)) {
case -EIO:
DBF_ERROR("%4x IO error", irq_ptr->schid.sch_no);
- return;
- case -ETIMEDOUT:
- DBF_ERROR("%4x IO timeout", irq_ptr->schid.sch_no);
- qdio_int_error(cdev);
+ qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
+ wake_up(&cdev->private->wait_q);
return;
default:
WARN_ON(1);
@@ -1001,7 +963,6 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
case QDIO_IRQ_STATE_ACTIVE:
if (cstat & SCHN_STAT_PCI) {
qdio_int_handler_pci(irq_ptr);
- /* no state change so no need to wake up wait_q */
return;
}
if ((cstat & ~SCHN_STAT_PCI) || dstat) {
generated by cgit (git 2.34.1) at 2025-01-31 06:12:11 +0000