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<title>user/sven/linux.git/include/linux/i2o.h, branch v3.2.78</title>
<subtitle>Linux Kernel
</subtitle>
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<updated>2011-03-31T14:26:23Z</updated>
<entry>
<title>Fix common misspellings</title>
<updated>2011-03-31T14:26:23Z</updated>
<author>
<name>Lucas De Marchi</name>
<email>lucas.demarchi@profusion.mobi</email>
</author>
<published>2011-03-31T01:57:33Z</published>
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<id>urn:sha1:25985edcedea6396277003854657b5f3cb31a628</id>
<content type='text'>
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi &lt;lucas.demarchi@profusion.mobi&gt;
</content>
</entry>
<entry>
<title>i2o: Remove the dangerous kobj_to_i2o_device macro</title>
<updated>2010-03-24T07:20:03Z</updated>
<author>
<name>Ferenc Wagner</name>
<email>wferi@niif.hu</email>
</author>
<published>2010-03-24T07:20:03Z</published>
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<id>urn:sha1:8a6d9b149f105f8bdfa8e42dd9753e45a1887a16</id>
<content type='text'>
This macro worked only when applied to variables named 'kobj'.
While this could have been fixed by simply renaming the macro argument,
a more type-safe replacement by an inline function would be preferred.
However, nobody uses this macro, so it's simpler to just remove it.

Signed-off-by: Ferenc Wagner &lt;wferi@niif.hu&gt;
Signed-off-by: Jens Axboe &lt;jens.axboe@oracle.com&gt;
</content>
</entry>
<entry>
<title>block: Consolidate phys_segment and hw_segment limits</title>
<updated>2010-02-26T12:58:08Z</updated>
<author>
<name>Martin K. Petersen</name>
<email>martin.petersen@oracle.com</email>
</author>
<published>2010-02-26T05:20:39Z</published>
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<id>urn:sha1:8a78362c4eefc1deddbefe2c7f38aabbc2429d6b</id>
<content type='text'>
Except for SCSI no device drivers distinguish between physical and
hardware segment limits.  Consolidate the two into a single segment
limit.

Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
Signed-off-by: Jens Axboe &lt;jens.axboe@oracle.com&gt;
</content>
</entry>
<entry>
<title>i2o: Fix 32/64bit DMA locking</title>
<updated>2008-10-16T18:21:38Z</updated>
<author>
<name>Alan Cox</name>
<email>alan@redhat.com</email>
</author>
<published>2008-10-16T05:02:47Z</published>
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<id>urn:sha1:9d793b0bcbbbc37d80241862dfa5257963d5415e</id>
<content type='text'>
The I2O ioctls assume 32bits.  In itself that is fine as they are old
cards and nobody uses 64bit.  However on LKML it was noted this
assumption is also made for allocated memory and is unsafe on 64bit
systems.

Fixing this is a mess.  It turns out there is tons of crap buried in a
header file that does racy 32/64bit filtering on the masks.

So we:
- Verify all callers of the racy code can sleep (i2o_dma_[re]alloc)
- Move the code into a new i2o/memory.c file
- Remove the gfp_mask argument so nobody can try and misuse the function
- Wrap a mutex around the problem area (a single mutex is easy to do and
  none of this is performance relevant)
- Switch the remaining problem kmalloc holdout to use i2o_dma_alloc

Cc: Markus Lidel &lt;Markus.Lidel@shadowconnect.com&gt;
Cc: Vasily Averin &lt;vvs@sw.ru&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
</entry>
<entry>
<title>dma-mapping: add the device argument to dma_mapping_error()</title>
<updated>2008-07-26T19:00:03Z</updated>
<author>
<name>FUJITA Tomonori</name>
<email>fujita.tomonori@lab.ntt.co.jp</email>
</author>
<published>2008-07-26T02:44:49Z</published>
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<id>urn:sha1:8d8bb39b9eba32dd70e87fd5ad5c5dd4ba118e06</id>
<content type='text'>
Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER
architecture does:

This enables us to cleanly fix the Calgary IOMMU issue that some devices
are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423).

I think that per-device dma_mapping_ops support would be also helpful for
KVM people to support PCI passthrough but Andi thinks that this makes it
difficult to support the PCI passthrough (see the above thread).  So I
CC'ed this to KVM camp.  Comments are appreciated.

A pointer to dma_mapping_ops to struct dev_archdata is added.  If the
pointer is non NULL, DMA operations in asm/dma-mapping.h use it.  If it's
NULL, the system-wide dma_ops pointer is used as before.

If it's useful for KVM people, I plan to implement a mechanism to register
a hook called when a new pci (or dma capable) device is created (it works
with hot plugging).  It enables IOMMUs to set up an appropriate
dma_mapping_ops per device.

The major obstacle is that dma_mapping_error doesn't take a pointer to the
device unlike other DMA operations.  So x86 can't have dma_mapping_ops per
device.  Note all the POWER IOMMUs use the same dma_mapping_error function
so this is not a problem for POWER but x86 IOMMUs use different
dma_mapping_error functions.

The first patch adds the device argument to dma_mapping_error.  The patch
is trivial but large since it touches lots of drivers and dma-mapping.h in
all the architecture.

This patch:

dma_mapping_error() doesn't take a pointer to the device unlike other DMA
operations.  So we can't have dma_mapping_ops per device.

Note that POWER already has dma_mapping_ops per device but all the POWER
IOMMUs use the same dma_mapping_error function.  x86 IOMMUs use device
argument.

[akpm@linux-foundation.org: fix sge]
[akpm@linux-foundation.org: fix svc_rdma]
[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: fix bnx2x]
[akpm@linux-foundation.org: fix s2io]
[akpm@linux-foundation.org: fix pasemi_mac]
[akpm@linux-foundation.org: fix sdhci]
[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: fix sparc]
[akpm@linux-foundation.org: fix ibmvscsi]
Signed-off-by: FUJITA Tomonori &lt;fujita.tomonori@lab.ntt.co.jp&gt;
Cc: Muli Ben-Yehuda &lt;muli@il.ibm.com&gt;
Cc: Andi Kleen &lt;andi@firstfloor.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Ingo Molnar &lt;mingo@elte.hu&gt;
Cc: Avi Kivity &lt;avi@qumranet.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
</entry>
<entry>
<title>Remove "#ifdef __KERNEL__" checks from unexported headers</title>
<updated>2008-04-30T15:29:54Z</updated>
<author>
<name>Robert P. J. Day</name>
<email>rpjday@crashcourse.ca</email>
</author>
<published>2008-04-30T07:55:12Z</published>
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<id>urn:sha1:735643ee6cc5249bfac07fcad0946a5e7aff4423</id>
<content type='text'>
Remove the "#ifdef __KERNEL__" tests from unexported header files in
linux/include whose entire contents are wrapped in that preprocessor
test.

Signed-off-by: Robert P. J. Day &lt;rpjday@crashcourse.ca&gt;
Cc: David Woodhouse &lt;dwmw2@infradead.org&gt;
Cc: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
</entry>
<entry>
<title>i2o: remove static inline forward declarations</title>
<updated>2008-04-28T15:58:34Z</updated>
<author>
<name>Ilpo Järvinen</name>
<email>ilpo.jarvinen@helsinki.fi</email>
</author>
<published>2008-04-28T09:14:43Z</published>
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<id>urn:sha1:73fcdc9e15c27bb92595c611c8938a36645ea20d</id>
<content type='text'>
Nothing in between of them and the later declaration with body
needs them.

Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@helsinki.fi&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
</entry>
<entry>
<title>Convert asm/semaphore.h users to linux/semaphore.h</title>
<updated>2008-04-19T02:22:54Z</updated>
<author>
<name>Matthew Wilcox</name>
<email>matthew@wil.cx</email>
</author>
<published>2008-04-19T02:21:05Z</published>
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<id>urn:sha1:6188e10d38b8d7244ee7776d5f1f88c837b4b93f</id>
<content type='text'>
Signed-off-by: Matthew Wilcox &lt;willy@linux.intel.com&gt;
</content>
</entry>
<entry>
<title>i2o: sg chaining support</title>
<updated>2007-10-16T09:21:00Z</updated>
<author>
<name>Jens Axboe</name>
<email>jens.axboe@oracle.com</email>
</author>
<published>2007-07-24T12:42:11Z</published>
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<id>urn:sha1:ba2da2f8d61a9d2e24754c6311a4ab6a5e70060a</id>
<content type='text'>
Acked-by: Alan Cox &lt;alan@redhat.com&gt;
Signed-off-by: Jens Axboe &lt;jens.axboe@oracle.com&gt;
</content>
</entry>
<entry>
<title>mm: Remove slab destructors from kmem_cache_create().</title>
<updated>2007-07-20T01:11:58Z</updated>
<author>
<name>Paul Mundt</name>
<email>lethal@linux-sh.org</email>
</author>
<published>2007-07-20T01:11:58Z</published>
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<id>urn:sha1:20c2df83d25c6a95affe6157a4c9cac4cf5ffaac</id>
<content type='text'>
Slab destructors were no longer supported after Christoph's
c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been
BUGs for both slab and slub, and slob never supported them
either.

This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).

Signed-off-by: Paul Mundt &lt;lethal@linux-sh.org&gt;
</content>
</entry>
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