621a5f7ad9
Its a bit odd that debugfs_create_bool() takes 'u32 *' as an argument,
when all it needs is a boolean pointer.
It would be better to update this API to make it accept 'bool *'
instead, as that will make it more consistent and often more convenient.
Over that bool takes just a byte.
That required updates to all user sites as well, in the same commit
updating the API. regmap core was also using
debugfs_{read|write}_file_bool(), directly and variable types were
updated for that to be bool as well.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
#ifndef _LINUX_FAULT_INJECT_H
|
|
#define _LINUX_FAULT_INJECT_H
|
|
|
|
#ifdef CONFIG_FAULT_INJECTION
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/debugfs.h>
|
|
#include <linux/ratelimit.h>
|
|
#include <linux/atomic.h>
|
|
|
|
/*
|
|
* For explanation of the elements of this struct, see
|
|
* Documentation/fault-injection/fault-injection.txt
|
|
*/
|
|
struct fault_attr {
|
|
unsigned long probability;
|
|
unsigned long interval;
|
|
atomic_t times;
|
|
atomic_t space;
|
|
unsigned long verbose;
|
|
bool task_filter;
|
|
unsigned long stacktrace_depth;
|
|
unsigned long require_start;
|
|
unsigned long require_end;
|
|
unsigned long reject_start;
|
|
unsigned long reject_end;
|
|
|
|
unsigned long count;
|
|
struct ratelimit_state ratelimit_state;
|
|
struct dentry *dname;
|
|
};
|
|
|
|
#define FAULT_ATTR_INITIALIZER { \
|
|
.interval = 1, \
|
|
.times = ATOMIC_INIT(1), \
|
|
.require_end = ULONG_MAX, \
|
|
.stacktrace_depth = 32, \
|
|
.ratelimit_state = RATELIMIT_STATE_INIT_DISABLED, \
|
|
.verbose = 2, \
|
|
.dname = NULL, \
|
|
}
|
|
|
|
#define DECLARE_FAULT_ATTR(name) struct fault_attr name = FAULT_ATTR_INITIALIZER
|
|
int setup_fault_attr(struct fault_attr *attr, char *str);
|
|
bool should_fail(struct fault_attr *attr, ssize_t size);
|
|
|
|
#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
|
|
|
|
struct dentry *fault_create_debugfs_attr(const char *name,
|
|
struct dentry *parent, struct fault_attr *attr);
|
|
|
|
#else /* CONFIG_FAULT_INJECTION_DEBUG_FS */
|
|
|
|
static inline struct dentry *fault_create_debugfs_attr(const char *name,
|
|
struct dentry *parent, struct fault_attr *attr)
|
|
{
|
|
return ERR_PTR(-ENODEV);
|
|
}
|
|
|
|
#endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */
|
|
|
|
#endif /* CONFIG_FAULT_INJECTION */
|
|
|
|
#ifdef CONFIG_FAILSLAB
|
|
extern bool should_failslab(size_t size, gfp_t gfpflags, unsigned long flags);
|
|
#else
|
|
static inline bool should_failslab(size_t size, gfp_t gfpflags,
|
|
unsigned long flags)
|
|
{
|
|
return false;
|
|
}
|
|
#endif /* CONFIG_FAILSLAB */
|
|
|
|
#endif /* _LINUX_FAULT_INJECT_H */
|