#ifndef _CEPH_CACHE_H
#define _CEPH_CACHE_H
+#include <linux/netfs.h>
+
#ifdef CONFIG_CEPH_FSCACHE
extern struct fscache_netfs ceph_cache_netfs;
ci->fscache = NULL;
}
+static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci)
+{
+ return ci->fscache;
+}
+
static inline void ceph_fscache_invalidate(struct inode *inode)
{
fscache_invalidate(ceph_inode(inode)->fscache);
}
+static inline bool ceph_is_cache_enabled(struct inode *inode)
+{
+ struct fscache_cookie *cookie = ceph_fscache_cookie(ceph_inode(inode));
+
+ if (!cookie)
+ return false;
+ return fscache_cookie_enabled(cookie);
+}
+
+static inline int ceph_begin_cache_operation(struct netfs_read_request *rreq)
+{
+ struct fscache_cookie *cookie = ceph_fscache_cookie(ceph_inode(rreq->inode));
+
+ return fscache_begin_read_operation(rreq, cookie);
+}
#else
static inline int ceph_fscache_register(void)
{
}
+static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci)
+{
+ return NULL;
+}
+
static inline void ceph_fscache_register_inode_cookie(struct inode *inode)
{
}
{
}
+static inline bool ceph_is_cache_enabled(struct inode *inode)
+{
+ return false;
+}
+
+static inline int ceph_begin_cache_operation(struct netfs_read_request *rreq)
+{
+ return -ENOBUFS;
+}
#endif
#endif /* _CEPH_CACHE_H */