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x86: Nuke the supervisor_stack field in i386 thread_info
author
Steven Rostedt
<srostedt@redhat.com>
Thu, 6 Feb 2014 14:41:28 +0000
(09:41 -0500)
committer
H. Peter Anvin
<hpa@linux.intel.com>
Fri, 7 Mar 2014 00:56:54 +0000
(16:56 -0800)
Nothing references the supervisor_stack in the thread_info field,
and it does not exist in x86_64. To make the two more the same,
it is being removed.
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Link:
http://lkml.kernel.org/r/20110806012353.546183789@goodmis.org
Link:
http://lkml.kernel.org/r/20140206144321.203619611@goodmis.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
arch/x86/include/asm/thread_info.h
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diff --git
a/arch/x86/include/asm/thread_info.h
b/arch/x86/include/asm/thread_info.h
index
e1940c0
..
b7aa975
100644
(file)
--- a/
arch/x86/include/asm/thread_info.h
+++ b/
arch/x86/include/asm/thread_info.h
@@
-36,7
+36,6
@@
struct thread_info {
unsigned long previous_esp; /* ESP of the previous stack in
case of nested (IRQ) stacks
*/
- __u8 supervisor_stack[0];
#endif
unsigned int sig_on_uaccess_error:1;
unsigned int uaccess_err:1; /* uaccess failed */