1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * V9FS cache definitions. 4 * 5 * Copyright (C) 2009 by Abhishek Kulkarni <adkulkar@umail.iu.edu> 6 */ 7 8 #ifndef _9P_CACHE_H 9 #define _9P_CACHE_H 10 #define FSCACHE_USE_NEW_IO_API 11 #include <linux/fscache.h> 12 13 #ifdef CONFIG_9P_FSCACHE 14 15 extern struct fscache_netfs v9fs_cache_netfs; 16 extern const struct fscache_cookie_def v9fs_cache_session_index_def; 17 extern const struct fscache_cookie_def v9fs_cache_inode_index_def; 18 19 extern void v9fs_cache_session_get_cookie(struct v9fs_session_info *v9ses); 20 extern void v9fs_cache_session_put_cookie(struct v9fs_session_info *v9ses); 21 22 extern void v9fs_cache_inode_get_cookie(struct inode *inode); 23 extern void v9fs_cache_inode_put_cookie(struct inode *inode); 24 extern void v9fs_cache_inode_flush_cookie(struct inode *inode); 25 extern void v9fs_cache_inode_set_cookie(struct inode *inode, struct file *filp); 26 extern void v9fs_cache_inode_reset_cookie(struct inode *inode); 27 28 extern int __v9fs_cache_register(void); 29 extern void __v9fs_cache_unregister(void); 30 31 #else /* CONFIG_9P_FSCACHE */ 32 33 static inline void v9fs_cache_inode_get_cookie(struct inode *inode) 34 { 35 } 36 37 static inline void v9fs_cache_inode_put_cookie(struct inode *inode) 38 { 39 } 40 41 static inline void v9fs_cache_inode_set_cookie(struct inode *inode, struct file *file) 42 { 43 } 44 45 #endif /* CONFIG_9P_FSCACHE */ 46 #endif /* _9P_CACHE_H */ 47