forked from luck/tmp_suning_uos_patched
c6ae41e7d4
Since percpu_xxx() serial functions are duplicated with this_cpu_xxx(). Removing percpu_xxx() definition and replacing them by this_cpu_xxx() in code. There is no function change in this patch, just preparation for later percpu_xxx serial function removing. On x86 machine the this_cpu_xxx() serial functions are same as __this_cpu_xxx() without no unnecessary premmpt enable/disable. Thanks for Stephen Rothwell, he found and fixed a i386 build error in the patch. Also thanks for Andrew Morton, he kept updating the patchset in Linus' tree. Signed-off-by: Alex Shi <alex.shi@intel.com> Acked-by: Christoph Lameter <cl@gentwo.org> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tejun Heo <tj@kernel.org>
22 lines
404 B
C
22 lines
404 B
C
#ifndef _ASM_X86_CURRENT_H
|
|
#define _ASM_X86_CURRENT_H
|
|
|
|
#include <linux/compiler.h>
|
|
#include <asm/percpu.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
struct task_struct;
|
|
|
|
DECLARE_PER_CPU(struct task_struct *, current_task);
|
|
|
|
static __always_inline struct task_struct *get_current(void)
|
|
{
|
|
return this_cpu_read_stable(current_task);
|
|
}
|
|
|
|
#define current get_current()
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* _ASM_X86_CURRENT_H */
|