<feed xmlns='http://www.w3.org/2005/Atom'>
<title>litmus-rt.git/arch/m68k/include/asm, branch test</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>Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu</title>
<updated>2015-04-20T17:12:29+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2015-04-20T17:12:29+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=5ca08a82a75c9109f8207cbcbef8705334b4713a'/>
<id>5ca08a82a75c9109f8207cbcbef8705334b4713a</id>
<content type='text'>
Pull m68k fixes from Greg Ungerer:
 "Nothing big, spelling fixes and fix/cleanup for ColdFire eth device setup"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: fix fec setup warning for ColdFire 5271 builds
  m68knommu: ColdFire 5271 only has a single FEC controller
  m68k: Fix trivial typos in comments
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull m68k fixes from Greg Ungerer:
 "Nothing big, spelling fixes and fix/cleanup for ColdFire eth device setup"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: fix fec setup warning for ColdFire 5271 builds
  m68knommu: ColdFire 5271 only has a single FEC controller
  m68k: Fix trivial typos in comments
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc</title>
<updated>2015-04-15T20:53:55+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2015-04-15T20:53:55+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=fa2e5c073a355465a2a8c9a2fbecf404f9857c3a'/>
<id>fa2e5c073a355465a2a8c9a2fbecf404f9857c3a</id>
<content type='text'>
Pull exec domain removal from Richard Weinberger:
 "This series removes execution domain support from Linux.

  The idea behind exec domains was to support different ABIs.  The
  feature was never complete nor stable.  Let's rip it out and make the
  kernel signal handling code less complicated"

* 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (27 commits)
  arm64: Removed unused variable
  sparc: Fix execution domain removal
  Remove rest of exec domains.
  arch: Remove exec_domain from remaining archs
  arc: Remove signal translation and exec_domain
  xtensa: Remove signal translation and exec_domain
  xtensa: Autogenerate offsets in struct thread_info
  x86: Remove signal translation and exec_domain
  unicore32: Remove signal translation and exec_domain
  um: Remove signal translation and exec_domain
  tile: Remove signal translation and exec_domain
  sparc: Remove signal translation and exec_domain
  sh: Remove signal translation and exec_domain
  s390: Remove signal translation and exec_domain
  mn10300: Remove signal translation and exec_domain
  microblaze: Remove signal translation and exec_domain
  m68k: Remove signal translation and exec_domain
  m32r: Remove signal translation and exec_domain
  m32r: Autogenerate offsets in struct thread_info
  frv: Remove signal translation and exec_domain
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull exec domain removal from Richard Weinberger:
 "This series removes execution domain support from Linux.

  The idea behind exec domains was to support different ABIs.  The
  feature was never complete nor stable.  Let's rip it out and make the
  kernel signal handling code less complicated"

* 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (27 commits)
  arm64: Removed unused variable
  sparc: Fix execution domain removal
  Remove rest of exec domains.
  arch: Remove exec_domain from remaining archs
  arc: Remove signal translation and exec_domain
  xtensa: Remove signal translation and exec_domain
  xtensa: Autogenerate offsets in struct thread_info
  x86: Remove signal translation and exec_domain
  unicore32: Remove signal translation and exec_domain
  um: Remove signal translation and exec_domain
  tile: Remove signal translation and exec_domain
  sparc: Remove signal translation and exec_domain
  sh: Remove signal translation and exec_domain
  s390: Remove signal translation and exec_domain
  mn10300: Remove signal translation and exec_domain
  microblaze: Remove signal translation and exec_domain
  m68k: Remove signal translation and exec_domain
  m32r: Remove signal translation and exec_domain
  m32r: Autogenerate offsets in struct thread_info
  frv: Remove signal translation and exec_domain
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>m68k: Remove signal translation and exec_domain</title>
<updated>2015-04-12T18:58:25+00:00</updated>
<author>
<name>Richard Weinberger</name>
<email>richard@nod.at</email>
</author>
<published>2014-07-13T15:19:34+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=a0075cd1cb79971ed6162e27fdb2ae76fc3008cf'/>
<id>a0075cd1cb79971ed6162e27fdb2ae76fc3008cf</id>
<content type='text'>
As execution domain support is gone we can remove
signal translation from the signal code and remove
exec_domain from thread_info.

Signed-off-by: Richard Weinberger &lt;richard@nod.at&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
As execution domain support is gone we can remove
signal translation from the signal code and remove
exec_domain from thread_info.

Signed-off-by: Richard Weinberger &lt;richard@nod.at&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>m68knommu: ColdFire 5271 only has a single FEC controller</title>
<updated>2015-03-29T23:52:24+00:00</updated>
<author>
<name>Greg Ungerer</name>
<email>gerg@uclinux.org</email>
</author>
<published>2015-03-18T00:14:45+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=a630ec1b64c57f681877cc19c8e7ea5640cf7fcb'/>
<id>a630ec1b64c57f681877cc19c8e7ea5640cf7fcb</id>
<content type='text'>
The inclusion of multiple FEC ethernet platform devices is based around
the FEC address definitions in the platform headers. The ColdFire m527x
platform is defining 2 FEC modules, but the 5271 SoC only has a single
FEC hardware module. The attempt to probe and init a second FEC module
causes a trap and dump on boot on this platform.

Fix the definitions so that only the 5275 SoC platform (which has 2 FEC
hardware modules) defines the second base address.

Reported-by: ertheb &lt;3rth3bnospam@ethe.fr&gt;
Signed-off-by: Greg Ungerer &lt;gerg@uclinux.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The inclusion of multiple FEC ethernet platform devices is based around
the FEC address definitions in the platform headers. The ColdFire m527x
platform is defining 2 FEC modules, but the 5271 SoC only has a single
FEC hardware module. The attempt to probe and init a second FEC module
causes a trap and dump on boot on this platform.

Fix the definitions so that only the 5275 SoC platform (which has 2 FEC
hardware modules) defines the second base address.

Reported-by: ertheb &lt;3rth3bnospam@ethe.fr&gt;
Signed-off-by: Greg Ungerer &lt;gerg@uclinux.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>m68k: Fix trivial typos in comments</title>
<updated>2015-03-29T23:52:24+00:00</updated>
<author>
<name>Yannick Guerrini</name>
<email>yguerrini@tomshardware.fr</email>
</author>
<published>2015-03-09T21:29:24+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=faa7cc2862c861d241cdb052e495e296bece1ccb'/>
<id>faa7cc2862c861d241cdb052e495e296bece1ccb</id>
<content type='text'>
Change 'Reaceive' to 'Receive'
Change 'alighnment' to 'alignment'

Signed-off-by: Yannick Guerrini &lt;yguerrini@tomshardware.fr&gt;
Signed-off-by: Greg Ungerer &lt;gerg@uclinux.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Change 'Reaceive' to 'Receive'
Change 'alighnment' to 'alignment'

Signed-off-by: Yannick Guerrini &lt;yguerrini@tomshardware.fr&gt;
Signed-off-by: Greg Ungerer &lt;gerg@uclinux.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>m68k: Remove FSF address</title>
<updated>2015-03-15T09:23:30+00:00</updated>
<author>
<name>Geert Uytterhoeven</name>
<email>geert@linux-m68k.org</email>
</author>
<published>2014-11-08T18:19:07+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=d6410efad2e49e2cefc2a0e7236824fd12d5bd6e'/>
<id>d6410efad2e49e2cefc2a0e7236824fd12d5bd6e</id>
<content type='text'>
We have a central copy of the GPL for that, and the FSF may change
address again in the future.

Signed-off-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
We have a central copy of the GPL for that, and the FSF may change
address again in the future.

Signed-off-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>mm: add missing __PAGETABLE_{PUD,PMD}_FOLDED defines</title>
<updated>2015-02-28T17:57:51+00:00</updated>
<author>
<name>Kirill A. Shutemov</name>
<email>kirill.shutemov@linux.intel.com</email>
</author>
<published>2015-02-27T23:52:12+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=c07af4f1ce413d009ea76ee69099f06f73ce75b2'/>
<id>c07af4f1ce413d009ea76ee69099f06f73ce75b2</id>
<content type='text'>
Core mm expects __PAGETABLE_{PUD,PMD}_FOLDED to be defined if these page
table levels folded.  Usually, these defines are provided by
&lt;asm-generic/pgtable-nopmd.h&gt; and &lt;asm-generic/pgtable-nopud.h&gt;.

But some architectures fold page table levels in a custom way.  They
need to define these macros themself.  This patch adds missing defines.

The patch fixes mm-&gt;nr_pmds underflow and eliminates dead __pmd_alloc()
and __pud_alloc() on architectures without these page table levels.

Signed-off-by: Kirill A. Shutemov &lt;kirill.shutemov@linux.intel.com&gt;
Cc: Aaro Koskinen &lt;aaro.koskinen@iki.fi&gt;
Cc: David Howells &lt;dhowells@redhat.com&gt;
Cc: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Cc: Heiko Carstens &lt;heiko.carstens@de.ibm.com&gt;
Cc: Helge Deller &lt;deller@gmx.de&gt;
Cc: "James E.J. Bottomley" &lt;jejb@parisc-linux.org&gt;
Cc: Koichi Yasutake &lt;yasutake.koichi@jp.panasonic.com&gt;
Cc: Martin Schwidefsky &lt;schwidefsky@de.ibm.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>
Core mm expects __PAGETABLE_{PUD,PMD}_FOLDED to be defined if these page
table levels folded.  Usually, these defines are provided by
&lt;asm-generic/pgtable-nopmd.h&gt; and &lt;asm-generic/pgtable-nopud.h&gt;.

But some architectures fold page table levels in a custom way.  They
need to define these macros themself.  This patch adds missing defines.

The patch fixes mm-&gt;nr_pmds underflow and eliminates dead __pmd_alloc()
and __pud_alloc() on architectures without these page table levels.

Signed-off-by: Kirill A. Shutemov &lt;kirill.shutemov@linux.intel.com&gt;
Cc: Aaro Koskinen &lt;aaro.koskinen@iki.fi&gt;
Cc: David Howells &lt;dhowells@redhat.com&gt;
Cc: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Cc: Heiko Carstens &lt;heiko.carstens@de.ibm.com&gt;
Cc: Helge Deller &lt;deller@gmx.de&gt;
Cc: "James E.J. Bottomley" &lt;jejb@parisc-linux.org&gt;
Cc: Koichi Yasutake &lt;yasutake.koichi@jp.panasonic.com&gt;
Cc: Martin Schwidefsky &lt;schwidefsky@de.ibm.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>
<entry>
<title>Merge tag 'asm-generic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic</title>
<updated>2015-02-18T18:02:24+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2015-02-18T18:02:24+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=eaa0eda56223815cd9dc1225f715ff673ae77198'/>
<id>eaa0eda56223815cd9dc1225f715ff673ae77198</id>
<content type='text'>
Pull asm-generic uaccess.h cleanup from Arnd Bergmann:
 "Like in 3.19, I once more have a multi-stage cleanup for one
  asm-generic header file, this time the work was done by Michael
  Tsirkin and cleans up the uaccess.h file in asm-generic, as well as
  all architectures for which the respective maintainers did not pick up
  his patches directly"

* tag 'asm-generic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (37 commits)
  sparc32: nocheck uaccess coding style tweaks
  sparc64: nocheck uaccess coding style tweaks
  xtensa: macro whitespace fixes
  sh: macro whitespace fixes
  parisc: macro whitespace fixes
  m68k: macro whitespace fixes
  m32r: macro whitespace fixes
  frv: macro whitespace fixes
  cris: macro whitespace fixes
  avr32: macro whitespace fixes
  arm64: macro whitespace fixes
  arm: macro whitespace fixes
  alpha: macro whitespace fixes
  blackfin: macro whitespace fixes
  sparc64: uaccess_64 macro whitespace fixes
  sparc32: uaccess_32 macro whitespace fixes
  avr32: whitespace fix
  sh: fix put_user sparse errors
  metag: fix put_user sparse errors
  ia64: fix put_user sparse errors
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull asm-generic uaccess.h cleanup from Arnd Bergmann:
 "Like in 3.19, I once more have a multi-stage cleanup for one
  asm-generic header file, this time the work was done by Michael
  Tsirkin and cleans up the uaccess.h file in asm-generic, as well as
  all architectures for which the respective maintainers did not pick up
  his patches directly"

* tag 'asm-generic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (37 commits)
  sparc32: nocheck uaccess coding style tweaks
  sparc64: nocheck uaccess coding style tweaks
  xtensa: macro whitespace fixes
  sh: macro whitespace fixes
  parisc: macro whitespace fixes
  m68k: macro whitespace fixes
  m32r: macro whitespace fixes
  frv: macro whitespace fixes
  cris: macro whitespace fixes
  avr32: macro whitespace fixes
  arm64: macro whitespace fixes
  arm: macro whitespace fixes
  alpha: macro whitespace fixes
  blackfin: macro whitespace fixes
  sparc64: uaccess_64 macro whitespace fixes
  sparc32: uaccess_32 macro whitespace fixes
  avr32: whitespace fix
  sh: fix put_user sparse errors
  metag: fix put_user sparse errors
  ia64: fix put_user sparse errors
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu</title>
<updated>2015-02-16T22:56:01+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2015-02-16T22:56:01+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=ea44a160e6dc5d3d7c680ea72dfbabef80343839'/>
<id>ea44a160e6dc5d3d7c680ea72dfbabef80343839</id>
<content type='text'>
Pull m68knommu fixes from Greg Ungerer:
 "Nothing big, only a small collection of minor cleanups/fixes"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  arch: m68k: 68360: config: Remove unused function
  m68knommu: fix irq handler types in 68360/commproc.c
  m68k: remove check for CONFIG_BSEIP
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull m68knommu fixes from Greg Ungerer:
 "Nothing big, only a small collection of minor cleanups/fixes"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  arch: m68k: 68360: config: Remove unused function
  m68knommu: fix irq handler types in 68360/commproc.c
  m68k: remove check for CONFIG_BSEIP
</pre>
</div>
</content>
</entry>
<entry>
<title>all arches, signal: move restart_block to struct task_struct</title>
<updated>2015-02-13T02:54:12+00:00</updated>
<author>
<name>Andy Lutomirski</name>
<email>luto@amacapital.net</email>
</author>
<published>2015-02-12T23:01:14+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=f56141e3e2d9aabf7e6b89680ab572c2cdbb2a24'/>
<id>f56141e3e2d9aabf7e6b89680ab572c2cdbb2a24</id>
<content type='text'>
If an attacker can cause a controlled kernel stack overflow, overwriting
the restart block is a very juicy exploit target.  This is because the
restart_block is held in the same memory allocation as the kernel stack.

Moving the restart block to struct task_struct prevents this exploit by
making the restart_block harder to locate.

Note that there are other fields in thread_info that are also easy
targets, at least on some architectures.

It's also a decent simplification, since the restart code is more or less
identical on all architectures.

[james.hogan@imgtec.com: metag: align thread_info::supervisor_stack]
Signed-off-by: Andy Lutomirski &lt;luto@amacapital.net&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
Cc: "H. Peter Anvin" &lt;hpa@zytor.com&gt;
Cc: Ingo Molnar &lt;mingo@kernel.org&gt;
Cc: Kees Cook &lt;keescook@chromium.org&gt;
Cc: David Miller &lt;davem@davemloft.net&gt;
Acked-by: Richard Weinberger &lt;richard@nod.at&gt;
Cc: Richard Henderson &lt;rth@twiddle.net&gt;
Cc: Ivan Kokshaysky &lt;ink@jurassic.park.msu.ru&gt;
Cc: Matt Turner &lt;mattst88@gmail.com&gt;
Cc: Vineet Gupta &lt;vgupta@synopsys.com&gt;
Cc: Russell King &lt;rmk@arm.linux.org.uk&gt;
Cc: Catalin Marinas &lt;catalin.marinas@arm.com&gt;
Cc: Will Deacon &lt;will.deacon@arm.com&gt;
Cc: Haavard Skinnemoen &lt;hskinnemoen@gmail.com&gt;
Cc: Hans-Christian Egtvedt &lt;egtvedt@samfundet.no&gt;
Cc: Steven Miao &lt;realmz6@gmail.com&gt;
Cc: Mark Salter &lt;msalter@redhat.com&gt;
Cc: Aurelien Jacquiot &lt;a-jacquiot@ti.com&gt;
Cc: Mikael Starvik &lt;starvik@axis.com&gt;
Cc: Jesper Nilsson &lt;jesper.nilsson@axis.com&gt;
Cc: David Howells &lt;dhowells@redhat.com&gt;
Cc: Richard Kuo &lt;rkuo@codeaurora.org&gt;
Cc: "Luck, Tony" &lt;tony.luck@intel.com&gt;
Cc: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Cc: Michal Simek &lt;monstr@monstr.eu&gt;
Cc: Ralf Baechle &lt;ralf@linux-mips.org&gt;
Cc: Jonas Bonn &lt;jonas@southpole.se&gt;
Cc: "James E.J. Bottomley" &lt;jejb@parisc-linux.org&gt;
Cc: Helge Deller &lt;deller@gmx.de&gt;
Cc: Benjamin Herrenschmidt &lt;benh@kernel.crashing.org&gt;
Cc: Paul Mackerras &lt;paulus@samba.org&gt;
Acked-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt; (powerpc)
Tested-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt; (powerpc)
Cc: Martin Schwidefsky &lt;schwidefsky@de.ibm.com&gt;
Cc: Heiko Carstens &lt;heiko.carstens@de.ibm.com&gt;
Cc: Chen Liqin &lt;liqin.linux@gmail.com&gt;
Cc: Lennox Wu &lt;lennox.wu@gmail.com&gt;
Cc: Chris Metcalf &lt;cmetcalf@ezchip.com&gt;
Cc: Guan Xuetao &lt;gxt@mprc.pku.edu.cn&gt;
Cc: Chris Zankel &lt;chris@zankel.net&gt;
Cc: Max Filippov &lt;jcmvbkbc@gmail.com&gt;
Cc: Oleg Nesterov &lt;oleg@redhat.com&gt;
Cc: Guenter Roeck &lt;linux@roeck-us.net&gt;
Signed-off-by: James Hogan &lt;james.hogan@imgtec.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>
If an attacker can cause a controlled kernel stack overflow, overwriting
the restart block is a very juicy exploit target.  This is because the
restart_block is held in the same memory allocation as the kernel stack.

Moving the restart block to struct task_struct prevents this exploit by
making the restart_block harder to locate.

Note that there are other fields in thread_info that are also easy
targets, at least on some architectures.

It's also a decent simplification, since the restart code is more or less
identical on all architectures.

[james.hogan@imgtec.com: metag: align thread_info::supervisor_stack]
Signed-off-by: Andy Lutomirski &lt;luto@amacapital.net&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
Cc: "H. Peter Anvin" &lt;hpa@zytor.com&gt;
Cc: Ingo Molnar &lt;mingo@kernel.org&gt;
Cc: Kees Cook &lt;keescook@chromium.org&gt;
Cc: David Miller &lt;davem@davemloft.net&gt;
Acked-by: Richard Weinberger &lt;richard@nod.at&gt;
Cc: Richard Henderson &lt;rth@twiddle.net&gt;
Cc: Ivan Kokshaysky &lt;ink@jurassic.park.msu.ru&gt;
Cc: Matt Turner &lt;mattst88@gmail.com&gt;
Cc: Vineet Gupta &lt;vgupta@synopsys.com&gt;
Cc: Russell King &lt;rmk@arm.linux.org.uk&gt;
Cc: Catalin Marinas &lt;catalin.marinas@arm.com&gt;
Cc: Will Deacon &lt;will.deacon@arm.com&gt;
Cc: Haavard Skinnemoen &lt;hskinnemoen@gmail.com&gt;
Cc: Hans-Christian Egtvedt &lt;egtvedt@samfundet.no&gt;
Cc: Steven Miao &lt;realmz6@gmail.com&gt;
Cc: Mark Salter &lt;msalter@redhat.com&gt;
Cc: Aurelien Jacquiot &lt;a-jacquiot@ti.com&gt;
Cc: Mikael Starvik &lt;starvik@axis.com&gt;
Cc: Jesper Nilsson &lt;jesper.nilsson@axis.com&gt;
Cc: David Howells &lt;dhowells@redhat.com&gt;
Cc: Richard Kuo &lt;rkuo@codeaurora.org&gt;
Cc: "Luck, Tony" &lt;tony.luck@intel.com&gt;
Cc: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Cc: Michal Simek &lt;monstr@monstr.eu&gt;
Cc: Ralf Baechle &lt;ralf@linux-mips.org&gt;
Cc: Jonas Bonn &lt;jonas@southpole.se&gt;
Cc: "James E.J. Bottomley" &lt;jejb@parisc-linux.org&gt;
Cc: Helge Deller &lt;deller@gmx.de&gt;
Cc: Benjamin Herrenschmidt &lt;benh@kernel.crashing.org&gt;
Cc: Paul Mackerras &lt;paulus@samba.org&gt;
Acked-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt; (powerpc)
Tested-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt; (powerpc)
Cc: Martin Schwidefsky &lt;schwidefsky@de.ibm.com&gt;
Cc: Heiko Carstens &lt;heiko.carstens@de.ibm.com&gt;
Cc: Chen Liqin &lt;liqin.linux@gmail.com&gt;
Cc: Lennox Wu &lt;lennox.wu@gmail.com&gt;
Cc: Chris Metcalf &lt;cmetcalf@ezchip.com&gt;
Cc: Guan Xuetao &lt;gxt@mprc.pku.edu.cn&gt;
Cc: Chris Zankel &lt;chris@zankel.net&gt;
Cc: Max Filippov &lt;jcmvbkbc@gmail.com&gt;
Cc: Oleg Nesterov &lt;oleg@redhat.com&gt;
Cc: Guenter Roeck &lt;linux@roeck-us.net&gt;
Signed-off-by: James Hogan &lt;james.hogan@imgtec.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>
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