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 void ceph_fscache_inode_init(struct ceph_inode_info *ci)
34 static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci)
39 static inline void ceph_fscache_resize(struct inode *inode, loff_t to)
41 struct ceph_inode_info *ci = ceph_inode(inode);
42 struct fscache_cookie *cookie = ceph_fscache_cookie(ci);
45 ceph_fscache_use_cookie(inode, true);
46 fscache_resize_cookie(cookie, to);
47 ceph_fscache_unuse_cookie(inode, true);
51 static inline void ceph_fscache_unpin_writeback(struct inode *inode,
52 struct writeback_control *wbc)
54 fscache_unpin_writeback(wbc, ceph_fscache_cookie(ceph_inode(inode)));
57 static inline int ceph_fscache_set_page_dirty(struct page *page)
59 struct inode *inode = page->mapping->host;
60 struct ceph_inode_info *ci = ceph_inode(inode);
62 return fscache_set_page_dirty(page, ceph_fscache_cookie(ci));
65 static inline int ceph_begin_cache_operation(struct netfs_read_request *rreq)
67 struct fscache_cookie *cookie = ceph_fscache_cookie(ceph_inode(rreq->inode));
69 return fscache_begin_read_operation(&rreq->cache_resources, cookie);
72 static inline bool ceph_is_cache_enabled(struct inode *inode)
74 return fscache_cookie_enabled(ceph_fscache_cookie(ceph_inode(inode)));
77 static inline void ceph_fscache_note_page_release(struct inode *inode)
79 struct ceph_inode_info *ci = ceph_inode(inode);
81 fscache_note_page_release(ceph_fscache_cookie(ci));
83 #else /* CONFIG_CEPH_FSCACHE */
84 static inline int ceph_fscache_register_fs(struct ceph_fs_client* fsc,
85 struct fs_context *fc)
90 static inline void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc)
94 static inline void ceph_fscache_inode_init(struct ceph_inode_info *ci)
98 static inline void ceph_fscache_register_inode_cookie(struct inode *inode)
102 static inline void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci)
106 static inline void ceph_fscache_use_cookie(struct inode *inode, bool will_modify)
110 static inline void ceph_fscache_unuse_cookie(struct inode *inode, bool update)
114 static inline void ceph_fscache_update(struct inode *inode)
118 static inline void ceph_fscache_invalidate(struct inode *inode, bool dio_write)
122 static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci)
127 static inline void ceph_fscache_resize(struct inode *inode, loff_t to)
131 static inline void ceph_fscache_unpin_writeback(struct inode *inode,
132 struct writeback_control *wbc)
136 static inline int ceph_fscache_set_page_dirty(struct page *page)
138 return __set_page_dirty_nobuffers(page);
141 static inline bool ceph_is_cache_enabled(struct inode *inode)
146 static inline int ceph_begin_cache_operation(struct netfs_read_request *rreq)
151 static inline void ceph_fscache_note_page_release(struct inode *inode)
154 #endif /* CONFIG_CEPH_FSCACHE */