cregit-Linux how code gets into the kernel

Release 4.12 include/asm-generic/irq_regs.h

/* Fallback per-CPU frame pointer holder
 *
 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#ifndef _ASM_GENERIC_IRQ_REGS_H

#define _ASM_GENERIC_IRQ_REGS_H

#include <linux/percpu.h>

/*
 * Per-cpu current frame pointer - the location of the last exception frame on
 * the stack
 */
DECLARE_PER_CPU(struct pt_regs *, __irq_regs);


static inline struct pt_regs *get_irq_regs(void) { return __this_cpu_read(__irq_regs); }

Contributors

PersonTokensPropCommitsCommitProp
David Howells1694.12%150.00%
Christoph Lameter15.88%150.00%
Total17100.00%2100.00%


static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs) { struct pt_regs *old_regs; old_regs = __this_cpu_read(__irq_regs); __this_cpu_write(__irq_regs, new_regs); return old_regs; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells2775.00%150.00%
Christoph Lameter925.00%150.00%
Total36100.00%2100.00%

#endif /* _ASM_GENERIC_IRQ_REGS_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
David Howells6686.84%150.00%
Christoph Lameter1013.16%150.00%
Total76100.00%2100.00%
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