1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Ceph cache definitions.
5 * Copyright (C) 2013 by Adfin Solutions, Inc. All Rights Reserved.
6 * Written by Milosz Tanski (milosz@adfin.com)
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 void ceph_fscache_unpin_writeback(struct inode *inode,
47 struct writeback_control *wbc)
49 fscache_unpin_writeback(wbc, ceph_fscache_cookie(ceph_inode(inode)));
52 static inline int ceph_fscache_dirty_folio(struct address_space *mapping,
55 struct ceph_inode_info *ci = ceph_inode(mapping->host);
57 return fscache_dirty_folio(mapping, folio, ceph_fscache_cookie(ci));
60 static inline int ceph_begin_cache_operation(struct netfs_io_request *rreq)
62 struct fscache_cookie *cookie = ceph_fscache_cookie(ceph_inode(rreq->inode));
64 return fscache_begin_read_operation(&rreq->cache_resources, cookie);
67 static inline bool ceph_is_cache_enabled(struct inode *inode)
69 return fscache_cookie_enabled(ceph_fscache_cookie(ceph_inode(inode)));
72 static inline void ceph_fscache_note_page_release(struct inode *inode)
74 struct ceph_inode_info *ci = ceph_inode(inode);
76 fscache_note_page_release(ceph_fscache_cookie(ci));
78 #else /* CONFIG_CEPH_FSCACHE */
79 static inline int ceph_fscache_register_fs(struct ceph_fs_client* fsc,
80 struct fs_context *fc)
85 static inline void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc)
89 static inline void ceph_fscache_register_inode_cookie(struct inode *inode)
93 static inline void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci)
97 static inline void ceph_fscache_use_cookie(struct inode *inode, bool will_modify)
101 static inline void ceph_fscache_unuse_cookie(struct inode *inode, bool update)
105 static inline void ceph_fscache_update(struct inode *inode)
109 static inline void ceph_fscache_invalidate(struct inode *inode, bool dio_write)
113 static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci)
118 static inline void ceph_fscache_resize(struct inode *inode, loff_t to)
122 static inline void ceph_fscache_unpin_writeback(struct inode *inode,
123 struct writeback_control *wbc)
127 static inline int ceph_fscache_dirty_folio(struct address_space *mapping,
130 return filemap_dirty_folio(mapping, folio);
133 static inline bool ceph_is_cache_enabled(struct inode *inode)
138 static inline int ceph_begin_cache_operation(struct netfs_io_request *rreq)
143 static inline void ceph_fscache_note_page_release(struct inode *inode)
146 #endif /* CONFIG_CEPH_FSCACHE */