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[PATCH] i386: clean up user_mode macros

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- make the new user_mode() return 0 or 1 (same as x86_64)

 - remove conditional jump from user_mode_vm() it's called every timer
   tick on each CPU on SMP)

Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Chuck Ebbert 2005-07-26 21:57:24 -04:00 committed by Linus Torvalds
parent 4d7de66e2c
commit ae6578fe9b
1 changed files with 10 additions and 3 deletions
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13
include/asm-i386/ptrace.h
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@ -57,14 +57,21 @@ struct pt_regs {
#ifdef __KERNEL__ #ifdef __KERNEL__
struct task_struct; struct task_struct;
extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code); extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);
#define user_mode(regs) (3 & (regs)->xcs)
#define user_mode_vm(regs) ((VM_MASK & (regs)->eflags) || user_mode(regs)) static inline int user_mode(struct pt_regs *regs)
{
return (regs->xcs & 3) != 0;
}
static inline int user_mode_vm(struct pt_regs *regs)
{
return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0;
}
#define instruction_pointer(regs) ((regs)->eip) #define instruction_pointer(regs) ((regs)->eip)
#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER) #if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
extern unsigned long profile_pc(struct pt_regs *regs); extern unsigned long profile_pc(struct pt_regs *regs);
#else #else
#define profile_pc(regs) instruction_pointer(regs) #define profile_pc(regs) instruction_pointer(regs)
#endif #endif
#endif #endif /* __KERNEL__ */
#endif #endif