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x86: Move thread_info into task_struct

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Now that most of the thread_info users have been cleaned up,
this is straightforward.

Most of this code was written by Linus.

Originally-from: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jann Horn <jann@thejh.net>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/a50eab40abeaec9cb9a9e3cbdeafd32190206654.1473801993.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andy Lutomirski
2016-09-13 14:29:25 -07:00
committed by Ingo Molnar
parent c65eacbe29
commit 15f4eae70d
6 changed files with 10 additions and 57 deletions
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3
arch/x86/kernel/irq_64.c
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@@ -40,8 +40,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
if (user_mode(regs))
return;
if (regs->sp >= curbase + sizeof(struct thread_info) +
sizeof(struct pt_regs) + STACK_TOP_MARGIN &&
if (regs->sp >= curbase + sizeof(struct pt_regs) + STACK_TOP_MARGIN &&
regs->sp <= curbase + THREAD_SIZE)
return;