From: Martin Schwidefsky <schwidefsky@de.ibm.com>
To: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>,
Peter Oberparleiter <peter.oberparleiter@de.ibm.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>
Subject: [patch 30/52] [PATCH] cio: introduce ccw device todos
Date: Fri, 13 Nov 2009 16:08:54 +0100 [thread overview]
Message-ID: <20091113150914.652373699@de.ibm.com> (raw)
In-Reply-To: 20091113150824.351347652@de.ibm.com
[-- Attachment #1: 129-cio-ccwdev-todos.diff --]
[-- Type: text/plain, Size: 16257 bytes --]
From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Introduce a central mechanism for performing delayed ccw device work
to ensure that different types of work do not overwrite each other.
Prioritization ensures that the most important work is always
performed while less important tasks are either obsoleted or repeated
later.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
drivers/s390/cio/device.c | 203 ++++++++++++++++++++----------------------
drivers/s390/cio/device.h | 3
drivers/s390/cio/device_fsm.c | 28 +----
drivers/s390/cio/io_sch.h | 12 ++
4 files changed, 119 insertions(+), 127 deletions(-)
Index: quilt-2.6/drivers/s390/cio/device.c
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/device.c 2009-11-13 16:08:18.000000000 +0100
+++ quilt-2.6/drivers/s390/cio/device.c 2009-11-13 16:08:18.000000000 +0100
@@ -306,47 +306,6 @@
}
}
-static void ccw_device_remove_orphan_cb(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;
- ccw_device_unregister(cdev);
- /* Release cdev reference for workqueue processing. */
- put_device(&cdev->dev);
-}
-
-static void
-ccw_device_remove_disconnected(struct ccw_device *cdev)
-{
- unsigned long flags;
-
- /*
- * Forced offline in disconnected state means
- * 'throw away device'.
- */
- if (ccw_device_is_orphan(cdev)) {
- /*
- * Deregister ccw device.
- * Unfortunately, we cannot do this directly from the
- * attribute method.
- */
- /* Get cdev reference for workqueue processing. */
- if (!get_device(&cdev->dev))
- return;
- spin_lock_irqsave(cdev->ccwlock, flags);
- cdev->private->state = DEV_STATE_NOT_OPER;
- spin_unlock_irqrestore(cdev->ccwlock, flags);
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_remove_orphan_cb);
- queue_work(slow_path_wq, &cdev->private->kick_work);
- } else
- /* Deregister subchannel, which will kill the ccw device. */
- ccw_device_schedule_sch_unregister(cdev);
-}
-
/**
* ccw_device_set_offline() - disable a ccw device for I/O
* @cdev: target ccw device
@@ -494,9 +453,11 @@
static int online_store_handle_offline(struct ccw_device *cdev)
{
- if (cdev->private->state == DEV_STATE_DISCONNECTED)
- ccw_device_remove_disconnected(cdev);
- else if (cdev->online && cdev->drv && cdev->drv->set_offline)
+ if (cdev->private->state == DEV_STATE_DISCONNECTED) {
+ spin_lock_irq(cdev->ccwlock);
+ ccw_device_sched_todo(cdev, CDEV_TODO_UNREG_EVAL);
+ spin_unlock_irq(cdev->ccwlock);
+ } else if (cdev->online && cdev->drv && cdev->drv->set_offline)
return ccw_device_set_offline(cdev);
return 0;
}
@@ -690,17 +651,10 @@
return dev ? to_ccwdev(dev) : NULL;
}
-void ccw_device_do_unbind_bind(struct work_struct *work)
+static void ccw_device_do_unbind_bind(struct ccw_device *cdev)
{
- struct ccw_device_private *priv;
- struct ccw_device *cdev;
- struct subchannel *sch;
int ret;
- priv = container_of(work, struct ccw_device_private, kick_work);
- cdev = priv->cdev;
- sch = to_subchannel(cdev->dev.parent);
-
if (test_bit(1, &cdev->private->registered)) {
device_release_driver(&cdev->dev);
ret = device_attach(&cdev->dev);
@@ -735,6 +689,8 @@
return ERR_PTR(-ENOMEM);
}
+static void ccw_device_todo(struct work_struct *work);
+
static int io_subchannel_initialize_dev(struct subchannel *sch,
struct ccw_device *cdev)
{
@@ -742,7 +698,7 @@
atomic_set(&cdev->private->onoff, 0);
cdev->dev.parent = &sch->dev;
cdev->dev.release = ccw_device_release;
- INIT_WORK(&cdev->private->kick_work, NULL);
+ INIT_WORK(&cdev->private->todo_work, ccw_device_todo);
cdev->dev.groups = ccwdev_attr_groups;
/* Do first half of device_register. */
device_initialize(&cdev->dev);
@@ -797,17 +753,12 @@
/*
* Register recognized device.
*/
-static void
-io_subchannel_register(struct work_struct *work)
+static void io_subchannel_register(struct ccw_device *cdev)
{
- struct ccw_device_private *priv;
- struct ccw_device *cdev;
struct subchannel *sch;
int ret;
unsigned long flags;
- priv = container_of(work, struct ccw_device_private, kick_work);
- cdev = priv->cdev;
sch = to_subchannel(cdev->dev.parent);
/*
* Check if subchannel is still registered. It may have become
@@ -859,41 +810,23 @@
cdev->private->flags.recog_done = 1;
wake_up(&cdev->private->wait_q);
out_err:
- /* Release reference for workqueue processing. */
- put_device(&cdev->dev);
if (atomic_dec_and_test(&ccw_device_init_count))
wake_up(&ccw_device_init_wq);
}
-static void ccw_device_call_sch_unregister(struct work_struct *work)
+static void ccw_device_call_sch_unregister(struct ccw_device *cdev)
{
- struct ccw_device_private *priv;
- struct ccw_device *cdev;
struct subchannel *sch;
- priv = container_of(work, struct ccw_device_private, kick_work);
- cdev = priv->cdev;
/* Get subchannel reference for local processing. */
if (!get_device(cdev->dev.parent))
return;
sch = to_subchannel(cdev->dev.parent);
css_sch_device_unregister(sch);
- /* Release cdev reference for workqueue processing.*/
- put_device(&cdev->dev);
/* Release subchannel reference for local processing. */
put_device(&sch->dev);
}
-void ccw_device_schedule_sch_unregister(struct ccw_device *cdev)
-{
- /* Get cdev reference for workqueue processing. */
- if (!get_device(&cdev->dev))
- return;
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_call_sch_unregister);
- queue_work(slow_path_wq, &cdev->private->kick_work);
-}
-
/*
* subchannel recognition done. Called from the state machine.
*/
@@ -909,7 +842,8 @@
/* Device did not respond in time. */
case DEV_STATE_NOT_OPER:
cdev->private->flags.recog_done = 1;
- ccw_device_schedule_sch_unregister(cdev);
+ /* Remove device found not operational. */
+ ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
if (atomic_dec_and_test(&ccw_device_init_count))
wake_up(&ccw_device_init_wq);
break;
@@ -918,11 +852,7 @@
* We can't register the device in interrupt context so
* we schedule a work item.
*/
- if (!get_device(&cdev->dev))
- break;
- PREPARE_WORK(&cdev->private->kick_work,
- io_subchannel_register);
- queue_work(slow_path_wq, &cdev->private->kick_work);
+ ccw_device_sched_todo(cdev, CDEV_TODO_REGISTER);
break;
}
}
@@ -1333,20 +1263,16 @@
static int purge_fn(struct device *dev, void *data)
{
struct ccw_device *cdev = to_ccwdev(dev);
- struct ccw_device_private *priv = cdev->private;
- int unreg;
+ struct ccw_dev_id *id = &cdev->private->dev_id;
spin_lock_irq(cdev->ccwlock);
- unreg = is_blacklisted(priv->dev_id.ssid, priv->dev_id.devno) &&
- (priv->state == DEV_STATE_OFFLINE);
+ if (is_blacklisted(id->ssid, id->devno) &&
+ (cdev->private->state == DEV_STATE_OFFLINE)) {
+ CIO_MSG_EVENT(3, "ccw: purging 0.%x.%04x\n", id->ssid,
+ id->devno);
+ ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
+ }
spin_unlock_irq(cdev->ccwlock);
- if (!unreg)
- goto out;
- CIO_MSG_EVENT(3, "ccw: purging 0.%x.%04x\n", priv->dev_id.ssid,
- priv->dev_id.devno);
- ccw_device_schedule_sch_unregister(cdev);
-
-out:
/* Abort loop in case of pending signal. */
if (signal_pending(current))
return -EINTR;
@@ -1456,12 +1382,14 @@
goto out_unlock;
if (work_pending(&sch->todo_work))
goto out_unlock;
+ cdev = sch_get_cdev(sch);
+ if (cdev && work_pending(&cdev->private->todo_work))
+ goto out_unlock;
action = sch_get_action(sch);
CIO_MSG_EVENT(2, "event: sch 0.%x.%04x, process=%d, action=%d\n",
sch->schid.ssid, sch->schid.sch_no, process,
action);
/* Perform immediate actions while holding the lock. */
- cdev = sch_get_cdev(sch);
switch (action) {
case IO_SCH_REPROBE:
/* Trigger device recognition. */
@@ -1753,7 +1681,7 @@
{
struct ccw_device *cdev = to_ccwdev(dev);
- if (work_pending(&cdev->private->kick_work))
+ if (work_pending(&cdev->private->todo_work))
return -EAGAIN;
/* Fail while device is being set online/offline. */
if (atomic_read(&cdev->private->onoff))
@@ -1874,7 +1802,7 @@
cdev->private->state = DEV_STATE_BOXED;
if (ccw_device_notify(cdev, CIO_BOXED))
return 0;
- ccw_device_schedule_sch_unregister(cdev);
+ ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
return -ENODEV;
}
@@ -1883,7 +1811,7 @@
cdev->private->state = DEV_STATE_DISCONNECTED;
if (ccw_device_notify(cdev, CIO_GONE))
return 0;
- ccw_device_schedule_sch_unregister(cdev);
+ ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
return -ENODEV;
}
@@ -1928,9 +1856,7 @@
/* check if the device type has changed */
if (!ccw_device_test_sense_data(cdev)) {
ccw_device_update_sense_data(cdev);
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_do_unbind_bind);
- queue_work(ccw_device_work, &cdev->private->kick_work);
+ ccw_device_sched_todo(cdev, CDEV_TODO_REBIND);
ret = -ENODEV;
goto out_unlock;
}
@@ -1974,7 +1900,7 @@
goto out_restore;
out_unreg_unlock:
- ccw_device_schedule_sch_unregister(cdev);
+ ccw_device_sched_todo(cdev, CDEV_TODO_UNREG_EVAL);
ret = -ENODEV;
out_unlock:
spin_unlock_irq(sch->lock);
@@ -2039,6 +1965,77 @@
return sch->schid;
}
+static void ccw_device_todo(struct work_struct *work)
+{
+ struct ccw_device_private *priv;
+ struct ccw_device *cdev;
+ struct subchannel *sch;
+ enum cdev_todo todo;
+
+ priv = container_of(work, struct ccw_device_private, todo_work);
+ cdev = priv->cdev;
+ sch = to_subchannel(cdev->dev.parent);
+ /* Find out todo. */
+ spin_lock_irq(cdev->ccwlock);
+ todo = priv->todo;
+ priv->todo = CDEV_TODO_NOTHING;
+ CIO_MSG_EVENT(4, "cdev_todo: cdev=0.%x.%04x todo=%d\n",
+ priv->dev_id.ssid, priv->dev_id.devno, todo);
+ spin_unlock_irq(cdev->ccwlock);
+ /* Perform todo. */
+ switch (todo) {
+ case CDEV_TODO_ENABLE_CMF:
+ cmf_reenable(cdev);
+ break;
+ case CDEV_TODO_REBIND:
+ ccw_device_do_unbind_bind(cdev);
+ break;
+ case CDEV_TODO_REGISTER:
+ io_subchannel_register(cdev);
+ break;
+ case CDEV_TODO_UNREG_EVAL:
+ if (!sch_is_pseudo_sch(sch))
+ css_schedule_eval(sch->schid);
+ /* fall-through */
+ case CDEV_TODO_UNREG:
+ if (sch_is_pseudo_sch(sch))
+ ccw_device_unregister(cdev);
+ else
+ ccw_device_call_sch_unregister(cdev);
+ break;
+ default:
+ break;
+ }
+ /* Release workqueue ref. */
+ put_device(&cdev->dev);
+}
+
+/**
+ * ccw_device_sched_todo - schedule ccw device operation
+ * @cdev: ccw device
+ * @todo: todo
+ *
+ * Schedule the operation identified by @todo to be performed on the slow path
+ * workqueue. Do nothing if another operation with higher priority is already
+ * scheduled. Needs to be called with ccwdev lock held.
+ */
+void ccw_device_sched_todo(struct ccw_device *cdev, enum cdev_todo todo)
+{
+ CIO_MSG_EVENT(4, "cdev_todo: sched cdev=0.%x.%04x todo=%d\n",
+ cdev->private->dev_id.ssid, cdev->private->dev_id.devno,
+ todo);
+ if (cdev->private->todo >= todo)
+ return;
+ cdev->private->todo = todo;
+ /* Get workqueue ref. */
+ if (!get_device(&cdev->dev))
+ return;
+ if (!queue_work(slow_path_wq, &cdev->private->todo_work)) {
+ /* Already queued, release workqueue ref. */
+ put_device(&cdev->dev);
+ }
+}
+
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(ccw_device_set_online);
EXPORT_SYMBOL(ccw_device_set_offline);
Index: quilt-2.6/drivers/s390/cio/device_fsm.c
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/device_fsm.c 2009-11-13 16:08:18.000000000 +0100
+++ quilt-2.6/drivers/s390/cio/device_fsm.c 2009-11-13 16:08:18.000000000 +0100
@@ -289,9 +289,7 @@
wake_up(&cdev->private->wait_q);
} else {
ccw_device_update_sense_data(cdev);
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_do_unbind_bind);
- queue_work(ccw_device_work, &cdev->private->kick_work);
+ ccw_device_sched_todo(cdev, CDEV_TODO_REBIND);
}
return;
case DEV_STATE_BOXED:
@@ -343,28 +341,16 @@
return cdev->drv->notify ? cdev->drv->notify(cdev, event) : 0;
}
-static void cmf_reenable_delayed(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;
- cmf_reenable(cdev);
-}
-
static void ccw_device_oper_notify(struct ccw_device *cdev)
{
if (ccw_device_notify(cdev, CIO_OPER)) {
/* Reenable channel measurements, if needed. */
- PREPARE_WORK(&cdev->private->kick_work, cmf_reenable_delayed);
- queue_work(ccw_device_work, &cdev->private->kick_work);
+ ccw_device_sched_todo(cdev, CDEV_TODO_ENABLE_CMF);
return;
}
/* Driver doesn't want device back. */
ccw_device_set_notoper(cdev);
- PREPARE_WORK(&cdev->private->kick_work, ccw_device_do_unbind_bind);
- queue_work(ccw_device_work, &cdev->private->kick_work);
+ ccw_device_sched_todo(cdev, CDEV_TODO_REBIND);
}
/*
@@ -392,14 +378,14 @@
CIO_MSG_EVENT(0, "Boxed device %04x on subchannel %04x\n",
cdev->private->dev_id.devno, sch->schid.sch_no);
if (cdev->online && !ccw_device_notify(cdev, CIO_BOXED))
- ccw_device_schedule_sch_unregister(cdev);
+ ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
cdev->private->flags.donotify = 0;
break;
case DEV_STATE_NOT_OPER:
CIO_MSG_EVENT(0, "Device %04x gone on subchannel %04x\n",
cdev->private->dev_id.devno, sch->schid.sch_no);
if (!ccw_device_notify(cdev, CIO_GONE))
- ccw_device_schedule_sch_unregister(cdev);
+ ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
else
ccw_device_set_disconnected(cdev);
cdev->private->flags.donotify = 0;
@@ -409,7 +395,7 @@
"%04x\n", cdev->private->dev_id.devno,
sch->schid.sch_no);
if (!ccw_device_notify(cdev, CIO_NO_PATH))
- ccw_device_schedule_sch_unregister(cdev);
+ ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
else
ccw_device_set_disconnected(cdev);
cdev->private->flags.donotify = 0;
@@ -751,7 +737,7 @@
enum dev_event dev_event)
{
if (!ccw_device_notify(cdev, CIO_GONE))
- ccw_device_schedule_sch_unregister(cdev);
+ ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
else
ccw_device_set_disconnected(cdev);
}
Index: quilt-2.6/drivers/s390/cio/device.h
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/device.h 2009-11-13 15:48:33.000000000 +0100
+++ quilt-2.6/drivers/s390/cio/device.h 2009-11-13 16:08:18.000000000 +0100
@@ -81,8 +81,6 @@
int ccw_device_cancel_halt_clear(struct ccw_device *);
-void ccw_device_do_unbind_bind(struct work_struct *);
-void ccw_device_move_to_orphanage(struct work_struct *);
int ccw_device_is_orphan(struct ccw_device *);
int ccw_device_recognition(struct ccw_device *);
@@ -92,6 +90,7 @@
int ccw_device_test_sense_data(struct ccw_device *);
void ccw_device_schedule_sch_unregister(struct ccw_device *);
int ccw_purge_blacklisted(void);
+void ccw_device_sched_todo(struct ccw_device *cdev, enum cdev_todo todo);
/* Function prototypes for device status and basic sense stuff. */
void ccw_device_accumulate_irb(struct ccw_device *, struct irb *);
Index: quilt-2.6/drivers/s390/cio/io_sch.h
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/io_sch.h 2009-11-13 15:48:33.000000000 +0100
+++ quilt-2.6/drivers/s390/cio/io_sch.h 2009-11-13 16:08:18.000000000 +0100
@@ -82,6 +82,15 @@
struct ciw ciw[MAX_CIWS]; /* variable # of CIWs */
} __attribute__ ((packed, aligned(4)));
+enum cdev_todo {
+ CDEV_TODO_NOTHING,
+ CDEV_TODO_ENABLE_CMF,
+ CDEV_TODO_REBIND,
+ CDEV_TODO_REGISTER,
+ CDEV_TODO_UNREG,
+ CDEV_TODO_UNREG_EVAL,
+};
+
struct ccw_device_private {
struct ccw_device *cdev;
struct subchannel *sch;
@@ -115,7 +124,8 @@
struct senseid senseid; /* SenseID info */
struct pgid pgid[8]; /* path group IDs per chpid*/
struct ccw1 iccws[2]; /* ccws for SNID/SID/SPGID commands */
- struct work_struct kick_work;
+ struct work_struct todo_work;
+ enum cdev_todo todo;
wait_queue_head_t wait_q;
struct timer_list timer;
void *cmb; /* measurement information */
next prev parent reply other threads:[~2009-11-13 15:13 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-13 15:08 [patch 00/52] s390 patches for the next merge window (2.6.33) Martin Schwidefsky
2009-11-13 15:08 ` [patch 01/52] [PATCH] Improve address space check Martin Schwidefsky
2009-11-13 15:08 ` [patch 02/52] [PATCH] Improve address space mode selection Martin Schwidefsky
2009-11-13 15:08 ` [patch 03/52] [PATCH] Improve notify_page_fault implementation Martin Schwidefsky
2009-11-13 15:08 ` [patch 04/52] [PATCH] fault handler performance optimization Martin Schwidefsky
2009-11-13 15:08 ` [patch 05/52] [PATCH] fault handler access flags check Martin Schwidefsky
2009-11-13 15:08 ` [patch 06/52] [PATCH] Use do_exception() in pagetable walk usercopy functions Martin Schwidefsky
2009-11-13 15:08 ` [patch 07/52] [PATCH] Improve code generated by atomic operations Martin Schwidefsky
2009-11-13 15:08 ` [patch 08/52] [PATCH] dasd: support DIAG access for read-only devices Martin Schwidefsky
2009-11-13 15:08 ` [patch 09/52] [PATCH] cmm: free pages on hibernate Martin Schwidefsky
2009-11-13 15:08 ` [patch 10/52] [PATCH] smp: remove unused typedef and defines Martin Schwidefsky
2009-11-13 15:08 ` [patch 11/52] [PATCH] dasd: remove dead code Martin Schwidefsky
2009-11-13 15:08 ` [patch 12/52] [PATCH] use generic termbits.h header file Martin Schwidefsky
2009-11-13 15:08 ` [patch 13/52] [PATCH] use generic sockios.h " Martin Schwidefsky
2009-11-13 15:08 ` [patch 14/52] [PATCH] MAINTAINERS: Add s390 drivers block Martin Schwidefsky
2009-11-13 15:08 ` [patch 15/52] [PATCH] zcrypt: initialize ap_messages for cex3 exploitation Martin Schwidefsky
2009-11-13 15:08 ` [patch 16/52] [PATCH] zcrypt: special command support " Martin Schwidefsky
2009-11-13 15:08 ` [patch 17/52] [PATCH] zcrypt: add support for cex3 device types Martin Schwidefsky
2009-11-13 15:08 ` [patch 18/52] [PATCH] zcrypt: use definitions for cex3 Martin Schwidefsky
2009-11-13 15:08 ` [patch 19/52] [PATCH] zcrypt: adjust speed rating between cex2 and pcixcc Martin Schwidefsky
2009-11-13 15:08 ` [patch 20/52] [PATCH] zcrypt: adjust speed rating of cex3 adapters Martin Schwidefsky
2009-11-13 15:08 ` [patch 21/52] [PATCH] dasd: enable prefix independent of pav support Martin Schwidefsky
2009-11-13 15:08 ` [patch 22/52] [PATCH] dasd: improve error recovery for internal I/O Martin Schwidefsky
2009-11-13 15:08 ` [patch 23/52] [PATCH] dasd: remove strings from s390dbf Martin Schwidefsky
2009-11-13 15:08 ` [patch 24/52] [PATCH] s390: use change recording override for kernel mapping Martin Schwidefsky
2009-11-13 15:08 ` [patch 25/52] [PATCH] sclp: improve servicability setting Martin Schwidefsky
2009-11-13 15:08 ` [patch 26/52] [PATCH] cio: fix double free in case of probe failure Martin Schwidefsky
2009-11-13 15:08 ` [patch 27/52] [PATCH] cio: fix repeat setting of cdev parent association Martin Schwidefsky
2009-11-13 15:08 ` [patch 28/52] [PATCH] cio: introduce parent-initiated device move Martin Schwidefsky
2009-11-13 15:08 ` [patch 29/52] [PATCH] cio: introduce subchannel todos Martin Schwidefsky
2009-11-13 15:08 ` Martin Schwidefsky [this message]
2009-11-13 15:08 ` [patch 31/52] [PATCH] cio: inform user when online/offline processing fails Martin Schwidefsky
2009-11-13 15:08 ` [patch 32/52] [PATCH] cio: handle error during device recognition consistently Martin Schwidefsky
2009-11-13 15:08 ` [patch 33/52] [PATCH] cio: handle error during path verification consistently Martin Schwidefsky
2009-11-13 15:08 ` [patch 34/52] [PATCH] cio: ensure proper locking during device recognition Martin Schwidefsky
2009-11-13 15:08 ` [patch 35/52] [PATCH] cio: dont panic in non-fatal conditions Martin Schwidefsky
2009-11-13 15:09 ` [patch 36/52] [PATCH] cio: consistent infrastructure for internal I/O requests Martin Schwidefsky
2009-11-13 15:09 ` [patch 37/52] [PATCH] cio: use ccw request infrastructure for sense id Martin Schwidefsky
2009-11-13 15:09 ` [patch 38/52] [PATCH] cio: use ccw request infrastructure for pgid Martin Schwidefsky
2009-11-13 15:09 ` [patch 39/52] [PATCH] cio: allow setting not-operational devices offline Martin Schwidefsky
2009-11-13 15:09 ` [patch 40/52] [PATCH] cio: remove intretry flag Martin Schwidefsky
2009-11-13 15:09 ` [patch 41/52] [PATCH] cio: split PGID settings and status Martin Schwidefsky
2009-11-13 15:09 ` [patch 42/52] [PATCH] cio: use sense-pgid operation for path verification Martin Schwidefsky
2009-11-13 15:09 ` [patch 43/52] [PATCH] cio: make steal lock procedure more robust Martin Schwidefsky
2009-11-13 15:09 ` [patch 44/52] [PATCH] cio: remove registered flag from ccw_device_private Martin Schwidefsky
2009-11-13 15:09 ` [patch 45/52] [PATCH] cio: add per device initialization status flag Martin Schwidefsky
2009-11-13 15:09 ` [patch 46/52] [PATCH] cio: fix quiesce state Martin Schwidefsky
2009-11-13 15:09 ` [patch 47/52] [PATCH] cio: handle failed disable_subchannel after device recognition Martin Schwidefsky
2009-11-13 15:09 ` [patch 48/52] [PATCH] cio: handle busy subchannel in ccw_device_move_to_sch Martin Schwidefsky
2009-11-13 15:09 ` [patch 49/52] [PATCH] cio: quiesce subchannel in io_subchannel_remove Martin Schwidefsky
2009-11-13 15:09 ` [patch 50/52] [PATCH] cio: change locking " Martin Schwidefsky
2009-11-13 15:09 ` [patch 51/52] [PATCH] cio: improve error recovery for internal I/Os Martin Schwidefsky
2009-11-13 15:09 ` [patch 52/52] [PATCH] cio: dont unregister a busy device in ccw_device_set_offline Martin Schwidefsky
2009-11-13 15:28 ` [patch 00/52] s390 patches for the next merge window (2.6.33) Arnd Bergmann
2009-11-13 15:31 ` s390: move keyboard compat ioctls into tty3270 driver Arnd Bergmann
2009-11-16 8:33 ` Martin Schwidefsky
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