fs/cachefiles/internal.h

55 struct cachefiles_cache {  struct
56 	struct fscache_cache		cache;		/* FS-Cache record */
57 	struct vfsmount			*mnt;		/* mountpoint holding the cache */
58 	struct dentry			*graveyard;	/* directory into which dead objects go */
59 	struct file			*cachefilesd;	/* manager daemon handle */
60 	const struct cred		*cache_cred;	/* security override for accessing cache */
61 	struct mutex			daemon_mutex;	/* command serialisation mutex */
62 	wait_queue_head_t		daemon_pollwq;	/* poll waitqueue for daemon */
63 	struct rb_root			active_nodes;	/* active nodes (can't be culled) */
64 	rwlock_t			active_lock;	/* lock for active_nodes */
65 	atomic_t			gravecounter;	/* graveyard uniquifier */
66 	atomic_t			f_released;	/* number of objects released lately */
67 	atomic_long_t			b_released;	/* number of blocks released lately */
68 	unsigned			frun_percent;	/* when to stop culling (% files) */
69 	unsigned			fcull_percent;	/* when to start culling (% files) */
70 	unsigned			fstop_percent;	/* when to stop allocating (% files) */
71 	unsigned			brun_percent;	/* when to stop culling (% blocks) */
72 	unsigned			bcull_percent;	/* when to start culling (% blocks) */
73 	unsigned			bstop_percent;	/* when to stop allocating (% blocks) */
74 	unsigned			bsize;		/* cache's block size */
75 	unsigned			bshift;		/* min(ilog2(PAGE_SIZE / bsize), 0) */
76 	uint64_t			frun;		/* when to stop culling */
77 	uint64_t			fcull;		/* when to start culling */
78 	uint64_t			fstop;		/* when to stop allocating */
79 	sector_t			brun;		/* when to stop culling */
80 	sector_t			bcull;		/* when to start culling */
81 	sector_t			bstop;		/* when to stop allocating */
82 	unsigned long			flags;
87 	char				*rootdirname;	/* name of cache root directory */
88 	char				*secctx;	/* LSM security context */
89 	char				*tag;		/* cache binding tag */