1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Ceph cache definitions.
5 * Copyright (C) 2013 by Adfin Solutions, Inc. All Rights Reserved.
12 #include <linux/netfs.h>
14 #ifdef CONFIG_CEPH_FSCACHE
15 #include <linux/fscache.h>
17 int ceph_fscache_register_fs(struct ceph_fs_client* fsc, struct fs_context *fc);
18 void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc);
20 void ceph_fscache_register_inode_cookie(struct inode *inode);
21 void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci);
23 void ceph_fscache_use_cookie(struct inode *inode, bool will_modify);
24 void ceph_fscache_unuse_cookie(struct inode *inode, bool update);
26 void ceph_fscache_update(struct inode *inode);
27 void ceph_fscache_invalidate(struct inode *inode, bool dio_write);
29 static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci)
31 return netfs_i_cookie(&ci->netfs);
34 static inline void ceph_fscache_resize(struct inode *inode, loff_t to)
36 struct ceph_inode_info *ci = ceph_inode(inode);
37 struct fscache_cookie *cookie = ceph_fscache_cookie(ci);
40 ceph_fscache_use_cookie(inode, true);
41 fscache_resize_cookie(cookie, to);
42 ceph_fscache_unuse_cookie(inode, true);
46 static inline int ceph_fscache_unpin_writeback(struct inode *inode,
47 struct writeback_control *wbc)
49 return netfs_unpin_writeback(inode, wbc);
52 #define ceph_fscache_dirty_folio netfs_dirty_folio
54 static inline bool ceph_is_cache_enabled(struct inode *inode)
56 return fscache_cookie_enabled(ceph_fscache_cookie(ceph_inode(inode)));
59 #else /* CONFIG_CEPH_FSCACHE */
60 static inline int ceph_fscache_register_fs(struct ceph_fs_client* fsc,
61 struct fs_context *fc)
66 static inline void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc)
70 static inline void ceph_fscache_register_inode_cookie(struct inode *inode)
74 static inline void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci)
78 static inline void ceph_fscache_use_cookie(struct inode *inode, bool will_modify)
82 static inline void ceph_fscache_unuse_cookie(struct inode *inode, bool update)
86 static inline void ceph_fscache_update(struct inode *inode)
90 static inline void ceph_fscache_invalidate(struct inode *inode, bool dio_write)
94 static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci)
99 static inline void ceph_fscache_resize(struct inode *inode, loff_t to)
103 static inline int ceph_fscache_unpin_writeback(struct inode *inode,
104 struct writeback_control *wbc)
109 #define ceph_fscache_dirty_folio filemap_dirty_folio
111 static inline bool ceph_is_cache_enabled(struct inode *inode)
115 #endif /* CONFIG_CEPH_FSCACHE */