switch_to function

Hua Jiang (speaklst2@yeah.net)
Sun, 5 Dec 1999 13:28:36 +0800


Hi everyone:

I read the linux kernel 2.2.13 source code,and find that in
arch/i386/kernel/process.c switch_to function use inline asm 'ltr' to load
the new task register which I thought can be loaded automatically when
'iretd','call',or 'ljmp' executed. anyone know why it still use 'ltr' here?

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