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| author | Andy Lutomirski <luto@kernel.org> | 2016-07-14 13:22:57 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-07-15 10:26:30 +0200 |
| commit | 13d4ea097d18b419ad2a2b696063d44bf59acec0 (patch) | |
| tree | 099cb3a4ee73be56742d6abcd3d5e2bdd541f65b /arch/x86/include/asm/thread_info.h | |
| parent | 2a53ccbc0de1b1950aeedd24680f7eca65c86ff5 (diff) | |
| download | linux-0-day-13d4ea097d18b419ad2a2b696063d44bf59acec0.tar.gz linux-0-day-13d4ea097d18b419ad2a2b696063d44bf59acec0.tar.xz | |
x86/uaccess: Move thread_info::addr_limit to thread_struct
struct thread_info is a legacy mess. To prepare for its partial removal,
move thread_info::addr_limit out.
As an added benefit, this way is simpler.
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/15bee834d09402b47ac86f2feccdf6529f9bc5b0.1468527351.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/thread_info.h')
| -rw-r--r-- | arch/x86/include/asm/thread_info.h | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 7c47bb659ecd0..89bff044a6f54 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -57,7 +57,6 @@ struct thread_info { __u32 flags; /* low level flags */ __u32 status; /* thread synchronous flags */ __u32 cpu; /* current CPU */ - mm_segment_t addr_limit; }; #define INIT_THREAD_INFO(tsk) \ @@ -65,7 +64,6 @@ struct thread_info { .task = &tsk, \ .flags = 0, \ .cpu = 0, \ - .addr_limit = KERNEL_DS, \ } #define init_thread_info (init_thread_union.thread_info) @@ -184,11 +182,6 @@ static inline unsigned long current_stack_pointer(void) # define cpu_current_top_of_stack (cpu_tss + TSS_sp0) #endif -/* Load thread_info address into "reg" */ -#define GET_THREAD_INFO(reg) \ - _ASM_MOV PER_CPU_VAR(cpu_current_top_of_stack),reg ; \ - _ASM_SUB $(THREAD_SIZE),reg ; - /* * ASM operand which evaluates to a 'thread_info' address of * the current task, if it is known that "reg" is exactly "off" |