ec7fcaabbf
Use the pcurrent field in the PDA to implement the "current" macro. This ends up compiling down to a single instruction to get the current task. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Chuck Ebbert <76306.1226@compuserve.com> Cc: Zachary Amsden <zach@vmware.com> Cc: Jan Beulich <jbeulich@novell.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org>
17 lines
278 B
C
17 lines
278 B
C
#ifndef _I386_CURRENT_H
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#define _I386_CURRENT_H
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#include <asm/pda.h>
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#include <linux/compiler.h>
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struct task_struct;
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static __always_inline struct task_struct *get_current(void)
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{
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return read_pda(pcurrent);
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}
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#define current get_current()
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#endif /* !(_I386_CURRENT_H) */
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