mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
fab9963a69
Remove the SLAB specific function slab_should_failslab(), by moving the check against fault-injection for the bootstrap slab, into the shared function should_failslab() (used by both SLAB and SLUB). This is a step towards sharing alloc_hook's between SLUB and SLAB. This bootstrap slab "kmem_cache" is used for allocating struct kmem_cache objects to the allocator itself. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Vladimir Davydov <vdavydov@virtuozzo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.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(struct kmem_cache *s, gfp_t gfpflags);
|
|
#else
|
|
static inline bool should_failslab(struct kmem_cache *s, gfp_t gfpflags)
|
|
{
|
|
return false;
|
|
}
|
|
#endif /* CONFIG_FAILSLAB */
|
|
|
|
#endif /* _LINUX_FAULT_INJECT_H */
|