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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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60063497a9
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
#ifndef _LINUX_FAULT_INJECT_H
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#define _LINUX_FAULT_INJECT_H
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#ifdef CONFIG_FAULT_INJECTION
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#include <linux/types.h>
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#include <linux/debugfs.h>
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#include <linux/atomic.h>
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/*
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* For explanation of the elements of this struct, see
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* Documentation/fault-injection/fault-injection.txt
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*/
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struct fault_attr {
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unsigned long probability;
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unsigned long interval;
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atomic_t times;
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atomic_t space;
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unsigned long verbose;
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u32 task_filter;
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unsigned long stacktrace_depth;
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unsigned long require_start;
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unsigned long require_end;
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unsigned long reject_start;
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unsigned long reject_end;
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unsigned long count;
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#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
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struct dentry *dir;
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#endif
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};
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#define FAULT_ATTR_INITIALIZER { \
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.interval = 1, \
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.times = ATOMIC_INIT(1), \
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.require_end = ULONG_MAX, \
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.stacktrace_depth = 32, \
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.verbose = 2, \
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}
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#define DECLARE_FAULT_ATTR(name) struct fault_attr name = FAULT_ATTR_INITIALIZER
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int setup_fault_attr(struct fault_attr *attr, char *str);
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bool should_fail(struct fault_attr *attr, ssize_t size);
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#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
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int init_fault_attr_dentries(struct fault_attr *attr, const char *name);
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void cleanup_fault_attr_dentries(struct fault_attr *attr);
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#else /* CONFIG_FAULT_INJECTION_DEBUG_FS */
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static inline int init_fault_attr_dentries(struct fault_attr *attr,
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const char *name)
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{
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return -ENODEV;
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}
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static inline void cleanup_fault_attr_dentries(struct fault_attr *attr)
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{
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}
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#endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */
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#endif /* CONFIG_FAULT_INJECTION */
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#ifdef CONFIG_FAILSLAB
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extern bool should_failslab(size_t size, gfp_t gfpflags, unsigned long flags);
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#else
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static inline bool should_failslab(size_t size, gfp_t gfpflags,
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unsigned long flags)
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{
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return false;
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}
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#endif /* CONFIG_FAILSLAB */
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#endif /* _LINUX_FAULT_INJECT_H */
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