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x86/uaccess: Move thread_info::uaccess_err and thread_info::sig_on_uaccess_err to thread_struct

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struct thread_info is a legacy mess.  To prepare for its partial removal,
move the uaccess control fields out -- they're straightforward.

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: 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/d0ac4d01c8e4d4d756264604e47445d5acc7900e.1468527351.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andy Lutomirski
2016-07-14 13:22:56 -07:00
committed by Ingo Molnar
parent 2deb4be280
commit dfa9a942fd
6 changed files with 10 additions and 9 deletions
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4
arch/x86/include/asm/uaccess.h
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@ -487,13 +487,13 @@ struct __large_struct { unsigned long buf[100]; };
* uaccess_try and catch
*/
#define uaccess_try do { \
current_thread_info()->uaccess_err = 0; \
current->thread.uaccess_err = 0; \
__uaccess_begin(); \
barrier();
#define uaccess_catch(err) \
__uaccess_end(); \
(err) |= (current_thread_info()->uaccess_err ? -EFAULT : 0); \
(err) |= (current->thread.uaccess_err ? -EFAULT : 0); \
} while (0)
/**