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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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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
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#define _ASM_X86_CURRENT_H
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#include <linux/compiler.h>
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#include <asm/percpu.h>
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#ifndef __ASSEMBLY__
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struct task_struct;
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DECLARE_PER_CPU(struct task_struct *, current_task);
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static __always_inline struct task_struct *get_current(void)
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{
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return this_cpu_read_stable(current_task);
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}
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#define current get_current()
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_X86_CURRENT_H */
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