<feed xmlns='http://www.w3.org/2005/Atom'>
<title>litmus-rt.git/arch/sparc, branch linux-tip</title>
<subtitle>The LITMUS^RT kernel.</subtitle>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/'/>
<entry>
<title>BKL: remove extraneous #include &lt;smp_lock.h&gt;</title>
<updated>2010-11-17T16:59:32+00:00</updated>
<author>
<name>Arnd Bergmann</name>
<email>arnd@arndb.de</email>
</author>
<published>2010-11-17T15:26:55+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=451a3c24b0135bce54542009b5fde43846c7cf67'/>
<id>451a3c24b0135bce54542009b5fde43846c7cf67</id>
<content type='text'>
The big kernel lock has been removed from all these files at some point,
leaving only the #include.

Remove this too as a cleanup.

Signed-off-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The big kernel lock has been removed from all these files at some point,
leaving only the #include.

Remove this too as a cleanup.

Signed-off-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branches 'perf-fixes-for-linus' and 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip</title>
<updated>2010-10-30T18:43:26+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2010-10-30T18:43:26+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=f02a38d86a14b6e544e218d806ffb0442785f62b'/>
<id>f02a38d86a14b6e544e218d806ffb0442785f62b</id>
<content type='text'>
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  jump label: Add work around to i386 gcc asm goto bug
  x86, ftrace: Use safe noops, drop trap test
  jump_label: Fix unaligned traps on sparc.
  jump label: Make arch_jump_label_text_poke_early() optional
  jump label: Fix error with preempt disable holding mutex
  oprofile: Remove deprecated use of flush_scheduled_work()
  oprofile: Fix the hang while taking the cpu offline
  jump label: Fix deadlock b/w jump_label_mutex vs. text_mutex
  jump label: Fix module __init section race

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Check irq_remapped instead of remapping_enabled in destroy_irq()
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  jump label: Add work around to i386 gcc asm goto bug
  x86, ftrace: Use safe noops, drop trap test
  jump_label: Fix unaligned traps on sparc.
  jump label: Make arch_jump_label_text_poke_early() optional
  jump label: Fix error with preempt disable holding mutex
  oprofile: Remove deprecated use of flush_scheduled_work()
  oprofile: Fix the hang while taking the cpu offline
  jump label: Fix deadlock b/w jump_label_mutex vs. text_mutex
  jump label: Fix module __init section race

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Check irq_remapped instead of remapping_enabled in destroy_irq()
</pre>
</div>
</content>
</entry>
<entry>
<title>jump_label: Fix unaligned traps on sparc.</title>
<updated>2010-10-29T16:57:06+00:00</updated>
<author>
<name>David Miller</name>
<email>davem@davemloft.net</email>
</author>
<published>2010-10-23T18:06:24+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=f0daed0242d514033b9ecca9187108d3c4e281a5'/>
<id>f0daed0242d514033b9ecca9187108d3c4e281a5</id>
<content type='text'>
The vmlinux.lds.h knobs to emit the __jump_table section in the main
kernel image takes care to align the section, but this doesn't help
for the __jump_table section that gets emitted into modules.

Fix the resulting lack of section alignment by explicitly specifying
it in the assembler.

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
LKML-Reference: &lt;20101023.110624.226758370.davem@davemloft.net&gt;
Signed-off-by: Steven Rostedt &lt;rostedt@goodmis.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The vmlinux.lds.h knobs to emit the __jump_table section in the main
kernel image takes care to align the section, but this doesn't help
for the __jump_table section that gets emitted into modules.

Fix the resulting lack of section alignment by explicitly specifying
it in the assembler.

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
LKML-Reference: &lt;20101023.110624.226758370.davem@davemloft.net&gt;
Signed-off-by: Steven Rostedt &lt;rostedt@goodmis.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6</title>
<updated>2010-10-29T15:03:48+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2010-10-29T15:03:48+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=c07724e5b868c603f2a65f3855c77b23454db3ed'/>
<id>c07724e5b868c603f2a65f3855c77b23454db3ed</id>
<content type='text'>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  kbuild: add ARCH=sparc32 target
  sparc32: fix build failure on CONFIG_SPARC_LEON
  sparc: Fixed random SPARC/LEON SMP CPU Stuck problem.
  sparc32: remove CONFIG_HAVE_PERF_EVENTS option
  sparc: don't #include asm/system.h in asm/jump_label.h
  sparc32: Fix unaligned stack handling on trap return.
  sparc: keep calling do_signal() as long as pending signals remain
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  kbuild: add ARCH=sparc32 target
  sparc32: fix build failure on CONFIG_SPARC_LEON
  sparc: Fixed random SPARC/LEON SMP CPU Stuck problem.
  sparc32: remove CONFIG_HAVE_PERF_EVENTS option
  sparc: don't #include asm/system.h in asm/jump_label.h
  sparc32: Fix unaligned stack handling on trap return.
  sparc: keep calling do_signal() as long as pending signals remain
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6</title>
<updated>2010-10-28T23:16:39+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2010-10-28T23:16:39+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=51399a391940e676877c7a791138081f13a0bab7'/>
<id>51399a391940e676877c7a791138081f13a0bab7</id>
<content type='text'>
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (38 commits)
  kbuild: convert `arch/tile' to the kconfig mainmenu upgrade
  README: cite nconfig
  Revert "kconfig: Temporarily disable dependency warnings"
  kconfig: Use PATH_MAX instead of 128 for path buffer sizes.
  kconfig: Fix realloc usage()
  kconfig: Propagate const
  kconfig: Don't go out from read config loop when you read new symbol
  kconfig: fix menuconfig on debian lenny
  kbuild: migrate all arch to the kconfig mainmenu upgrade
  kconfig: expand file names
  kconfig: use the file's name of sourced file
  kconfig: constify file name
  kconfig: don't emit warning upon rootmenu's prompt redefinition
  kconfig: replace KERNELVERSION usage by the mainmenu's prompt
  kconfig: delay gconf window initialization
  kconfig: expand by default the rootmenu's prompt
  kconfig: add a symbol string expansion helper
  kconfig: regen parser
  kconfig: implement the `mainmenu' directive
  kconfig: allow PACKAGE to be defined on the compiler's command-line
  ...

Fix up trivial conflict in arch/mn10300/Kconfig
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (38 commits)
  kbuild: convert `arch/tile' to the kconfig mainmenu upgrade
  README: cite nconfig
  Revert "kconfig: Temporarily disable dependency warnings"
  kconfig: Use PATH_MAX instead of 128 for path buffer sizes.
  kconfig: Fix realloc usage()
  kconfig: Propagate const
  kconfig: Don't go out from read config loop when you read new symbol
  kconfig: fix menuconfig on debian lenny
  kbuild: migrate all arch to the kconfig mainmenu upgrade
  kconfig: expand file names
  kconfig: use the file's name of sourced file
  kconfig: constify file name
  kconfig: don't emit warning upon rootmenu's prompt redefinition
  kconfig: replace KERNELVERSION usage by the mainmenu's prompt
  kconfig: delay gconf window initialization
  kconfig: expand by default the rootmenu's prompt
  kconfig: add a symbol string expansion helper
  kconfig: regen parser
  kconfig: implement the `mainmenu' directive
  kconfig: allow PACKAGE to be defined on the compiler's command-line
  ...

Fix up trivial conflict in arch/mn10300/Kconfig
</pre>
</div>
</content>
</entry>
<entry>
<title>sparc: remove dma64_addr_t usage</title>
<updated>2010-10-28T01:03:17+00:00</updated>
<author>
<name>FUJITA Tomonori</name>
<email>fujita.tomonori@lab.ntt.co.jp</email>
</author>
<published>2010-10-27T22:34:47+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=4ad9b208cf1d03c8c3c1e0063ee6eea88833118f'/>
<id>4ad9b208cf1d03c8c3c1e0063ee6eea88833118f</id>
<content type='text'>
dma64_addr_t looks pointless (at least there is no point that an
architecture has the own dma64_addr_t typedef).

dma_addr_t is set to 32 or 64 bits appropriately. You can use u64
at places where you know that 64 bit address is always necessary.

Let's use u64 instead for sparc32.

Looks like PCI654_REQUIRED_MASK or PCI64_ADR_BASE isn't used. They can
be removed?

Signed-off-by: FUJITA Tomonori &lt;fujita.tomonori@lab.ntt.co.jp&gt;
Acked-by: David Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
dma64_addr_t looks pointless (at least there is no point that an
architecture has the own dma64_addr_t typedef).

dma_addr_t is set to 32 or 64 bits appropriately. You can use u64
at places where you know that 64 bit address is always necessary.

Let's use u64 instead for sparc32.

Looks like PCI654_REQUIRED_MASK or PCI64_ADR_BASE isn't used. They can
be removed?

Signed-off-by: FUJITA Tomonori &lt;fujita.tomonori@lab.ntt.co.jp&gt;
Acked-by: David Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ptrace: cleanup arch_ptrace() on sparc</title>
<updated>2010-10-28T01:03:12+00:00</updated>
<author>
<name>Namhyung Kim</name>
<email>namhyung@gmail.com</email>
</author>
<published>2010-10-27T22:34:03+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=a9384e23ab19eba0dedb861ebcba805b98a3b7a5'/>
<id>a9384e23ab19eba0dedb861ebcba805b98a3b7a5</id>
<content type='text'>
Factor out struct fps and remove redundant castings.

Signed-off-by: Namhyung Kim &lt;namhyung@gmail.com&gt;
Acked-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Factor out struct fps and remove redundant castings.

Signed-off-by: Namhyung Kim &lt;namhyung@gmail.com&gt;
Acked-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ptrace: change signature of arch_ptrace()</title>
<updated>2010-10-28T01:03:10+00:00</updated>
<author>
<name>Namhyung Kim</name>
<email>namhyung@gmail.com</email>
</author>
<published>2010-10-27T22:33:47+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=9b05a69e0534ec70bc94921936ffa05b330507cb'/>
<id>9b05a69e0534ec70bc94921936ffa05b330507cb</id>
<content type='text'>
Fix up the arguments to arch_ptrace() to take account of the fact that
@addr and @data are now unsigned long rather than long as of a preceding
patch in this series.

Signed-off-by: Namhyung Kim &lt;namhyung@gmail.com&gt;
Cc: &lt;linux-arch@vger.kernel.org&gt;
Acked-by: Roland McGrath &lt;roland@redhat.com&gt;
Acked-by: David Howells &lt;dhowells@redhat.com&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Acked-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Fix up the arguments to arch_ptrace() to take account of the fact that
@addr and @data are now unsigned long rather than long as of a preceding
patch in this series.

Signed-off-by: Namhyung Kim &lt;namhyung@gmail.com&gt;
Cc: &lt;linux-arch@vger.kernel.org&gt;
Acked-by: Roland McGrath &lt;roland@redhat.com&gt;
Acked-by: David Howells &lt;dhowells@redhat.com&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Acked-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>fbmem: fix fb_read, fb_write unaligned accesses</title>
<updated>2010-10-28T01:03:08+00:00</updated>
<author>
<name>James Hogan</name>
<email>james@albanarts.com</email>
</author>
<published>2010-10-27T22:33:28+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=f11b478d461b7113eb4603b3914aaf15b7788e87'/>
<id>f11b478d461b7113eb4603b3914aaf15b7788e87</id>
<content type='text'>
fb_{read,write} access the framebuffer using lots of fb_{read,write}l's
but don't check that the file position is aligned which can cause problems
on some architectures which do not support unaligned accesses.

Since the operations are essentially memcpy_{from,to}io, new
fb_memcpy_{from,to}fb macros have been defined and these are used instead.

For Sparc, fb_{read,write} macros use sbus_{read,write}, so this defines
new sbus_memcpy_{from,to}io functions the same as memcpy_{from,to}io but
using sbus_{read,write}b instead of {read,write}b.

Signed-off-by: James Hogan &lt;james@albanarts.com&gt;
Acked-by: David S. Miller &lt;davem@davemloft.net&gt;
Acked-by: Florian Tobias Schandinat &lt;FlorianSchandinat@gmx.de&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
fb_{read,write} access the framebuffer using lots of fb_{read,write}l's
but don't check that the file position is aligned which can cause problems
on some architectures which do not support unaligned accesses.

Since the operations are essentially memcpy_{from,to}io, new
fb_memcpy_{from,to}fb macros have been defined and these are used instead.

For Sparc, fb_{read,write} macros use sbus_{read,write}, so this defines
new sbus_memcpy_{from,to}io functions the same as memcpy_{from,to}io but
using sbus_{read,write}b instead of {read,write}b.

Signed-off-by: James Hogan &lt;james@albanarts.com&gt;
Acked-by: David S. Miller &lt;davem@davemloft.net&gt;
Acked-by: Florian Tobias Schandinat &lt;FlorianSchandinat@gmx.de&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>mm: fix race in kunmap_atomic()</title>
<updated>2010-10-28T01:03:05+00:00</updated>
<author>
<name>Peter Zijlstra</name>
<email>a.p.zijlstra@chello.nl</email>
</author>
<published>2010-10-27T22:32:58+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=20273941f2129aa5a432796d98a276ed73d60782'/>
<id>20273941f2129aa5a432796d98a276ed73d60782</id>
<content type='text'>
Christoph reported a nice splat which illustrated a race in the new stack
based kmap_atomic implementation.

The problem is that we pop our stack slot before we're completely done
resetting its state -- in particular clearing the PTE (sometimes that's
CONFIG_DEBUG_HIGHMEM).  If an interrupt happens before we actually clear
the PTE used for the last slot, that interrupt can reuse the slot in a
dirty state, which triggers a BUG in kmap_atomic().

Fix this by introducing kmap_atomic_idx() which reports the current slot
index without actually releasing it and use that to find the PTE and delay
the _pop() until after we're completely done.

Signed-off-by: Peter Zijlstra &lt;a.p.zijlstra@chello.nl&gt;
Reported-by: Christoph Hellwig &lt;hch@infradead.org&gt;
Acked-by: Rik van Riel &lt;riel@redhat.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>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Christoph reported a nice splat which illustrated a race in the new stack
based kmap_atomic implementation.

The problem is that we pop our stack slot before we're completely done
resetting its state -- in particular clearing the PTE (sometimes that's
CONFIG_DEBUG_HIGHMEM).  If an interrupt happens before we actually clear
the PTE used for the last slot, that interrupt can reuse the slot in a
dirty state, which triggers a BUG in kmap_atomic().

Fix this by introducing kmap_atomic_idx() which reports the current slot
index without actually releasing it and use that to find the PTE and delay
the _pop() until after we're completely done.

Signed-off-by: Peter Zijlstra &lt;a.p.zijlstra@chello.nl&gt;
Reported-by: Christoph Hellwig &lt;hch@infradead.org&gt;
Acked-by: Rik van Riel &lt;riel@redhat.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
