Staging
v0.5.1
v0.5.1
swh:1:snp:a902887e4be9191b7c6c4406aa06b31c1ce2c7cc
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- v4.9-rc8
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- v4.1
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- v4.0-rc2
- v4.0-rc1
- v4.0
- v3.9-rc8
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- v3.8-rc2
- v3.8-rc1
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- v3.2-rc1
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- v3.19-rc7
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- v3.19-rc1
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- v3.18-rc7
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- v3.17-rc1
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- v3.16-rc7
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- v3.16-rc3
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- v3.16-rc1
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- v3.15-rc8
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- v3.15-rc6
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- v3.15-rc1
- v3.15
- v3.14-rc8
- v3.14-rc7
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- v3.14-rc1
- v3.14
- v3.13-rc8
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- v3.12-rc7
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- v3.12-rc2
- v3.12-rc1
- v3.12
- v3.11-rc7
- v3.11-rc6
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- v3.11
- v3.10-rc7
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- v3.10-rc3
- v3.10-rc2
- v3.10-rc1
- v3.10
- v3.1-rc9
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- v3.1-rc10
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- v3.1
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- v3.0-rc2
- v3.0-rc1
- v3.0
- v2.6.39-rc7
- v2.6.39-rc6
- v2.6.39-rc5
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- v2.6.39-rc1
- v2.6.39
- v2.6.38-rc8
- v2.6.38-rc7
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- v2.6.38-rc1
- v2.6.38
- v2.6.37-rc8
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- v2.6.34-rc7
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- v2.6.33
- v2.6.32-rc8
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- v2.6.32-rc1
- v2.6.32
- v2.6.31-rc9
- v2.6.31-rc8
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- v2.6.31-rc1
- v2.6.31
- v2.6.30-rc8
- v2.6.30-rc7
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- v2.6.30-rc5
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- v2.6.30-rc2
- v2.6.30-rc1
- v2.6.30
- v2.6.29-rc8
- v2.6.29-rc7
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- v2.6.29-rc4
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- v2.6.29-rc2
- v2.6.29-rc1
- v2.6.29
- v2.6.28-rc9
- v2.6.28-rc8
- v2.6.28-rc7
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- v2.6.28-rc5
- v2.6.28-rc4
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- v2.6.28-rc1
- v2.6.28
- v2.6.27-rc9
- v2.6.27-rc8
- v2.6.27-rc7
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- v2.6.27-rc5
- v2.6.27-rc4
- v2.6.27-rc3
- v2.6.27-rc2
- v2.6.27-rc1
- v2.6.27
- v2.6.26-rc9
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- v2.6.26-rc4
- v2.6.26-rc3
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- v2.6.26-rc1
- v2.6.26
- v2.6.25-rc9
- v2.6.25-rc8
- v2.6.25-rc7
- v2.6.25-rc6
- v2.6.25-rc5
- v2.6.25-rc4
- v2.6.25-rc3
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- v2.6.25-rc1
- v2.6.25
- v2.6.24-rc8
- v2.6.24-rc7
- v2.6.24-rc6
- v2.6.24-rc5
- v2.6.24-rc4
- v2.6.24-rc3
- v2.6.24-rc2
- v2.6.24-rc1
- v2.6.24
- v2.6.23-rc9
- v2.6.23-rc8
- v2.6.23-rc7
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- v2.6.23-rc5
- v2.6.23-rc4
- v2.6.23-rc3
- v2.6.23-rc2
- v2.6.23-rc1
- v2.6.23
- v2.6.22-rc7
- v2.6.22-rc6
- v2.6.22-rc5
- v2.6.22-rc4
- v2.6.22-rc3
- v2.6.22-rc2
- v2.6.22-rc1
- v2.6.22
- v2.6.21-rc7
- v2.6.21-rc6
- v2.6.21-rc5
- v2.6.21-rc4
- v2.6.21-rc3
- v2.6.21-rc2
- v2.6.21-rc1
- v2.6.21
- v2.6.20-rc7
- v2.6.20-rc6
- v2.6.20-rc5
- v2.6.20-rc4
- v2.6.20-rc3
- v2.6.20-rc2
- v2.6.20-rc1
- v2.6.20
- v2.6.19-rc6
- v2.6.19-rc5
- v2.6.19-rc4
- v2.6.19-rc3
- v2.6.19-rc2
- v2.6.19-rc1
- v2.6.19
- v2.6.18-rc7
- v2.6.18-rc6
- v2.6.18-rc5
- v2.6.18-rc4
- v2.6.18-rc3
- v2.6.18-rc2
- v2.6.18-rc1
- v2.6.18
- v2.6.17-rc6
- v2.6.17-rc5
- v2.6.17-rc4
- v2.6.17-rc3
- v2.6.17-rc2
- v2.6.17-rc1
- v2.6.17
- v2.6.16-rc6
- v2.6.16-rc5
- v2.6.16-rc4
- v2.6.16-rc3
- v2.6.16-rc2
- v2.6.16-rc1
- v2.6.16
- v2.6.15-rc7
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- v2.6.15-rc5
- v2.6.15-rc4
- v2.6.15-rc3
- v2.6.15-rc2
- v2.6.15-rc1
- v2.6.15
- v2.6.14-rc5
- v2.6.14-rc4
- v2.6.14-rc3
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Tip revision: 3ce54450461bad18bbe1f9f5aa3ecd2f8e8d1235 authored by Linus Torvalds on 06 January 2008, 21:45:38 UTC
Linux 2.6.24-rc7
Linux 2.6.24-rc7
Tip revision: 3ce5445
airq.c
/*
* drivers/s390/cio/airq.c
* S/390 common I/O routines -- support for adapter interruptions
*
* Copyright (C) 1999-2002 IBM Deutschland Entwicklung GmbH,
* IBM Corporation
* Author(s): Ingo Adlung (adlung@de.ibm.com)
* Cornelia Huck (cornelia.huck@de.ibm.com)
* Arnd Bergmann (arndb@de.ibm.com)
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/rcupdate.h>
#include "cio_debug.h"
#include "airq.h"
static adapter_int_handler_t adapter_handler;
/*
* register for adapter interrupts
*
* With HiperSockets the zSeries architecture provides for
* means of adapter interrups, pseudo I/O interrupts that are
* not tied to an I/O subchannel, but to an adapter. However,
* it doesn't disclose the info how to enable/disable them, but
* to recognize them only. Perhaps we should consider them
* being shared interrupts, and thus build a linked list
* of adapter handlers ... to be evaluated ...
*/
int
s390_register_adapter_interrupt (adapter_int_handler_t handler)
{
int ret;
char dbf_txt[15];
CIO_TRACE_EVENT (4, "rgaint");
if (handler == NULL)
ret = -EINVAL;
else
ret = (cmpxchg(&adapter_handler, NULL, handler) ? -EBUSY : 0);
if (!ret)
synchronize_sched(); /* Allow interrupts to complete. */
sprintf (dbf_txt, "ret:%d", ret);
CIO_TRACE_EVENT (4, dbf_txt);
return ret;
}
int
s390_unregister_adapter_interrupt (adapter_int_handler_t handler)
{
int ret;
char dbf_txt[15];
CIO_TRACE_EVENT (4, "urgaint");
if (handler == NULL)
ret = -EINVAL;
else {
adapter_handler = NULL;
synchronize_sched(); /* Allow interrupts to complete. */
ret = 0;
}
sprintf (dbf_txt, "ret:%d", ret);
CIO_TRACE_EVENT (4, dbf_txt);
return ret;
}
void
do_adapter_IO (void)
{
CIO_TRACE_EVENT (6, "doaio");
if (adapter_handler)
(*adapter_handler) ();
}
EXPORT_SYMBOL (s390_register_adapter_interrupt);
EXPORT_SYMBOL (s390_unregister_adapter_interrupt);