Messages in this thread Patch in this message | | | From | Frederic Weisbecker <> | Subject | [PATCH v2] x86: Remove stale TIF_DEBUG | Date | Tue, 19 Oct 2010 00:12:37 +0200 |
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The last user was ptrace breakpoints, which doesn't use that since 2.6.33.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> --- arch/x86/include/asm/thread_info.h | 3 --- arch/x86/kernel/process_32.c | 2 +- arch/x86/kernel/process_64.c | 2 +- 3 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index f0b6e5d..7d0fed5 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -88,7 +88,6 @@ struct thread_info { #define TIF_IA32 17 /* 32bit process */ #define TIF_FORK 18 /* ret_from_fork */ #define TIF_MEMDIE 20 /* is terminating due to OOM killer */ -#define TIF_DEBUG 21 /* uses debug registers */ #define TIF_IO_BITMAP 22 /* uses I/O bitmap */ #define TIF_FREEZE 23 /* is freezing for suspend */ #define TIF_FORCED_TF 24 /* true if TF in eflags artificially */ @@ -110,7 +109,6 @@ struct thread_info { #define _TIF_NOTSC (1 << TIF_NOTSC) #define _TIF_IA32 (1 << TIF_IA32) #define _TIF_FORK (1 << TIF_FORK) -#define _TIF_DEBUG (1 << TIF_DEBUG) #define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP) #define _TIF_FREEZE (1 << TIF_FREEZE) #define _TIF_FORCED_TF (1 << TIF_FORCED_TF) @@ -148,7 +146,6 @@ struct thread_info { (_TIF_IO_BITMAP|_TIF_NOTSC|_TIF_BLOCKSTEP) #define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY) -#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW|_TIF_DEBUG) #define PREEMPT_ACTIVE 0x10000000 diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index 96586c3..44726fb 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -350,7 +350,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) * Now maybe handle debug registers and/or IO bitmaps */ if (unlikely(task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW_PREV || - task_thread_info(next_p)->flags & _TIF_WORK_CTXSW_NEXT)) + task_thread_info(next_p)->flags & _TIF_WORK_CTXSW)) __switch_to_xtra(prev_p, next_p, tss); /* If we're going to preload the fpu context, make sure clts diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index b3d7a3a..399760d 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -484,7 +484,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) /* * Now maybe reload the debug registers and handle I/O bitmaps */ - if (unlikely(task_thread_info(next_p)->flags & _TIF_WORK_CTXSW_NEXT || + if (unlikely(task_thread_info(next_p)->flags & _TIF_WORK_CTXSW || task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW_PREV)) __switch_to_xtra(prev_p, next_p, tss); -- 1.6.2.3
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