bcachefs-tools/include/linux/shrinker.h
Kent Overstreet 06611a71a3 Update bcachefs sources to 783085c3cc44 kbuild: Allow gcov to be enabled on the command line
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-11-22 16:55:06 -05:00

41 lines
932 B
C

#ifndef __TOOLS_LINUX_SHRINKER_H
#define __TOOLS_LINUX_SHRINKER_H
#include <linux/list.h>
#include <linux/types.h>
struct shrink_control {
gfp_t gfp_mask;
unsigned long nr_to_scan;
};
#define SHRINK_STOP (~0UL)
struct seq_buf;
struct shrinker {
unsigned long (*count_objects)(struct shrinker *,
struct shrink_control *sc);
unsigned long (*scan_objects)(struct shrinker *,
struct shrink_control *sc);
void (*to_text)(struct seq_buf *, struct shrinker *);
int seeks; /* seeks to recreate an obj */
long batch; /* reclaim batch size, 0 = default */
struct list_head list;
void *private_data;
};
static inline void shrinker_free(struct shrinker *s)
{
free(s);
}
struct shrinker *shrinker_alloc(unsigned int, const char *, ...);
int shrinker_register(struct shrinker *);
void shrinker_unregister(struct shrinker *);
void run_shrinkers(gfp_t gfp_mask, bool);
#endif /* __TOOLS_LINUX_SHRINKER_H */