extern void fscache_op_work_func(struct work_struct *work);
extern void fscache_enqueue_operation(struct fscache_operation *);
-extern void fscache_op_complete(struct fscache_operation *);
+extern void fscache_op_complete(struct fscache_operation *, bool);
extern void fscache_put_operation(struct fscache_operation *);
/**
{
op->n_pages -= n_pages;
if (op->n_pages <= 0)
- fscache_op_complete(&op->op);
+ fscache_op_complete(&op->op, true);
}
/**
/* store the updated auxiliary data on an object */
void (*update_object)(struct fscache_object *object);
+ /* Invalidate an object */
+ void (*invalidate_object)(struct fscache_operation *op);
+
/* discard the resources pinned by an object and effect retirement if
* necessary */
void (*drop_object)(struct fscache_object *object);
#define FSCACHE_COOKIE_FILLING 4 /* T if filling object incrementally */
#define FSCACHE_COOKIE_UNAVAILABLE 5 /* T if cookie is unavailable (error, etc) */
#define FSCACHE_COOKIE_WAITING_ON_READS 6 /* T if cookie is waiting on reads */
+#define FSCACHE_COOKIE_INVALIDATING 7 /* T if cookie is being invalidated */
};
extern struct fscache_cookie fscache_fsdef_index;
+/*
+ * Event list for fscache_object::{event_mask,events}
+ */
+enum {
+ FSCACHE_OBJECT_EV_REQUEUE, /* T if object should be requeued */
+ FSCACHE_OBJECT_EV_UPDATE, /* T if object should be updated */
+ FSCACHE_OBJECT_EV_INVALIDATE, /* T if cache requested object invalidation */
+ FSCACHE_OBJECT_EV_CLEARED, /* T if accessors all gone */
+ FSCACHE_OBJECT_EV_ERROR, /* T if fatal error occurred during processing */
+ FSCACHE_OBJECT_EV_RELEASE, /* T if netfs requested object release */
+ FSCACHE_OBJECT_EV_RETIRE, /* T if netfs requested object retirement */
+ FSCACHE_OBJECT_EV_WITHDRAW, /* T if cache requested object withdrawal */
+ NR_FSCACHE_OBJECT_EVENTS
+};
+
+#define FSCACHE_OBJECT_EVENTS_MASK ((1UL << NR_FSCACHE_OBJECT_EVENTS) - 1)
+
/*
* on-disk cache file or index handle
*/
/* active states */
FSCACHE_OBJECT_AVAILABLE, /* cleaning up object after creation */
FSCACHE_OBJECT_ACTIVE, /* object is usable */
+ FSCACHE_OBJECT_INVALIDATING, /* object is invalidating */
FSCACHE_OBJECT_UPDATING, /* object is updating */
/* terminal states */
unsigned long event_mask; /* events this object is interested in */
unsigned long events; /* events to be processed by this object
* (order is important - using fls) */
-#define FSCACHE_OBJECT_EV_REQUEUE 0 /* T if object should be requeued */
-#define FSCACHE_OBJECT_EV_UPDATE 1 /* T if object should be updated */
-#define FSCACHE_OBJECT_EV_CLEARED 2 /* T if accessors all gone */
-#define FSCACHE_OBJECT_EV_ERROR 3 /* T if fatal error occurred during processing */
-#define FSCACHE_OBJECT_EV_RELEASE 4 /* T if netfs requested object release */
-#define FSCACHE_OBJECT_EV_RETIRE 5 /* T if netfs requested object retirement */
-#define FSCACHE_OBJECT_EV_WITHDRAW 6 /* T if cache requested object withdrawal */
-#define FSCACHE_OBJECT_EVENTS_MASK 0x7f /* mask of all events*/
unsigned long flags;
#define FSCACHE_OBJECT_LOCK 0 /* T if object is busy being processed */