forked from mirrors/linux
e52340de11
bottom_half.h needs _THIS_IP_ to be standalone, so split that and _RET_IP_ out from kernel.h into the new instruction_pointer.h. kernel.h directly needs them, so include it there and replace the include of kernel.h with this new file in bottom_half.h. Link: https://lkml.kernel.org/r/20211028161248.45232-1-andriy.shevchenko@linux.intel.com Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
42 lines
1,013 B
C
42 lines
1,013 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_BH_H
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#define _LINUX_BH_H
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#include <linux/instruction_pointer.h>
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#include <linux/preempt.h>
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#if defined(CONFIG_PREEMPT_RT) || defined(CONFIG_TRACE_IRQFLAGS)
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extern void __local_bh_disable_ip(unsigned long ip, unsigned int cnt);
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#else
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static __always_inline void __local_bh_disable_ip(unsigned long ip, unsigned int cnt)
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{
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preempt_count_add(cnt);
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barrier();
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}
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#endif
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static inline void local_bh_disable(void)
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{
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__local_bh_disable_ip(_THIS_IP_, SOFTIRQ_DISABLE_OFFSET);
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}
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extern void _local_bh_enable(void);
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extern void __local_bh_enable_ip(unsigned long ip, unsigned int cnt);
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static inline void local_bh_enable_ip(unsigned long ip)
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{
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__local_bh_enable_ip(ip, SOFTIRQ_DISABLE_OFFSET);
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}
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static inline void local_bh_enable(void)
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{
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__local_bh_enable_ip(_THIS_IP_, SOFTIRQ_DISABLE_OFFSET);
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}
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#ifdef CONFIG_PREEMPT_RT
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extern bool local_bh_blocked(void);
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#else
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static inline bool local_bh_blocked(void) { return false; }
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#endif
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#endif /* _LINUX_BH_H */
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