write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/arch/x86/include/asm/thread_info.h
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@@ -56,23 +56,16 @@
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 struct thread_info {
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 	unsigned long		flags;		/* low level flags */
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 	u32			status;		/* thread synchronous flags */
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-	int			preempt_lazy_count;	/* 0 => lazy preemptable
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-							  <0 => BUG */
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 };
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 #define INIT_THREAD_INFO(tsk)			\
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 {						\
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 	.flags		= 0,			\
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-	.preempt_lazy_count = 0,		\
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 }
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 #else /* !__ASSEMBLY__ */
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 #include <asm/asm-offsets.h>
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-
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-#define GET_THREAD_INFO(reg) \
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-	_ASM_MOV PER_CPU_VAR(cpu_current_top_of_stack),reg ; \
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-	_ASM_SUB $(THREAD_SIZE),reg ;
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 #endif
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@@ -110,7 +103,6 @@
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 #define TIF_SYSCALL_TRACEPOINT	28	/* syscall tracepoint instrumentation */
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 #define TIF_ADDR32		29	/* 32-bit address space on 64 bits */
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 #define TIF_X32			30	/* 32-bit native x86-64 binary */
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-#define TIF_NEED_RESCHED_LAZY	31	/* lazy rescheduling necessary */
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 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
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 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
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@@ -132,7 +124,6 @@
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 #define _TIF_IA32		(1 << TIF_IA32)
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 #define _TIF_NOTIFY_SIGNAL	(1 << TIF_NOTIFY_SIGNAL)
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 #define _TIF_SLD		(1 << TIF_SLD)
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-#define _TIF_NEED_RESCHED_LAZY	(1 << TIF_NEED_RESCHED_LAZY)
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 #define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
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 #define _TIF_IO_BITMAP		(1 << TIF_IO_BITMAP)
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 #define _TIF_FORCED_TF		(1 << TIF_FORCED_TF)
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@@ -164,8 +155,6 @@
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 #endif
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 #define _TIF_WORK_CTXSW_NEXT	(_TIF_WORK_CTXSW)
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-
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-#define _TIF_NEED_RESCHED_MASK	(_TIF_NEED_RESCHED | _TIF_NEED_RESCHED_LAZY)
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 #define STACK_WARN		(THREAD_SIZE/8)
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