Commit | Line | Data |
---|---|---|
1f327613 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
99ccbd22 MT |
2 | /* |
3 | * Ceph cache definitions. | |
4 | * | |
5 | * Copyright (C) 2013 by Adfin Solutions, Inc. All Rights Reserved. | |
6 | * Written by Milosz Tanski (milosz@adfin.com) | |
99ccbd22 MT |
7 | */ |
8 | ||
9 | #ifndef _CEPH_CACHE_H | |
10 | #define _CEPH_CACHE_H | |
11 | ||
f0702876 JL |
12 | #include <linux/netfs.h> |
13 | ||
99ccbd22 | 14 | #ifdef CONFIG_CEPH_FSCACHE |
400e1286 | 15 | #include <linux/fscache.h> |
99ccbd22 | 16 | |
82995cc6 | 17 | int ceph_fscache_register_fs(struct ceph_fs_client* fsc, struct fs_context *fc); |
99ccbd22 MT |
18 | void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc); |
19 | ||
46b59b2b | 20 | void ceph_fscache_register_inode_cookie(struct inode *inode); |
99ccbd22 | 21 | void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci); |
400e1286 JL |
22 | |
23 | void ceph_fscache_use_cookie(struct inode *inode, bool will_modify); | |
24 | void ceph_fscache_unuse_cookie(struct inode *inode, bool update); | |
25 | ||
26 | void ceph_fscache_update(struct inode *inode); | |
27 | void ceph_fscache_invalidate(struct inode *inode, bool dio_write); | |
99ccbd22 | 28 | |
f0702876 JL |
29 | static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci) |
30 | { | |
e81fb419 | 31 | return netfs_i_cookie(&ci->netfs); |
f0702876 JL |
32 | } |
33 | ||
400e1286 | 34 | static inline void ceph_fscache_resize(struct inode *inode, loff_t to) |
99ccbd22 | 35 | { |
400e1286 JL |
36 | struct ceph_inode_info *ci = ceph_inode(inode); |
37 | struct fscache_cookie *cookie = ceph_fscache_cookie(ci); | |
38 | ||
39 | if (cookie) { | |
40 | ceph_fscache_use_cookie(inode, true); | |
41 | fscache_resize_cookie(cookie, to); | |
42 | ceph_fscache_unuse_cookie(inode, true); | |
43 | } | |
99ccbd22 MT |
44 | } |
45 | ||
400e1286 JL |
46 | static inline void ceph_fscache_unpin_writeback(struct inode *inode, |
47 | struct writeback_control *wbc) | |
f0702876 | 48 | { |
400e1286 JL |
49 | fscache_unpin_writeback(wbc, ceph_fscache_cookie(ceph_inode(inode))); |
50 | } | |
51 | ||
8fb72b4a MWO |
52 | static inline int ceph_fscache_dirty_folio(struct address_space *mapping, |
53 | struct folio *folio) | |
400e1286 | 54 | { |
8fb72b4a | 55 | struct ceph_inode_info *ci = ceph_inode(mapping->host); |
f0702876 | 56 | |
8fb72b4a | 57 | return fscache_dirty_folio(mapping, folio, ceph_fscache_cookie(ci)); |
f0702876 JL |
58 | } |
59 | ||
6a19114b | 60 | static inline int ceph_begin_cache_operation(struct netfs_io_request *rreq) |
f0702876 JL |
61 | { |
62 | struct fscache_cookie *cookie = ceph_fscache_cookie(ceph_inode(rreq->inode)); | |
63 | ||
400e1286 | 64 | return fscache_begin_read_operation(&rreq->cache_resources, cookie); |
f0702876 | 65 | } |
99ccbd22 | 66 | |
400e1286 | 67 | static inline bool ceph_is_cache_enabled(struct inode *inode) |
99ccbd22 | 68 | { |
400e1286 | 69 | return fscache_cookie_enabled(ceph_fscache_cookie(ceph_inode(inode))); |
99ccbd22 MT |
70 | } |
71 | ||
400e1286 | 72 | static inline void ceph_fscache_note_page_release(struct inode *inode) |
99ccbd22 | 73 | { |
400e1286 | 74 | struct ceph_inode_info *ci = ceph_inode(inode); |
99ccbd22 | 75 | |
400e1286 JL |
76 | fscache_note_page_release(ceph_fscache_cookie(ci)); |
77 | } | |
78 | #else /* CONFIG_CEPH_FSCACHE */ | |
82995cc6 DH |
79 | static inline int ceph_fscache_register_fs(struct ceph_fs_client* fsc, |
80 | struct fs_context *fc) | |
99ccbd22 MT |
81 | { |
82 | return 0; | |
83 | } | |
84 | ||
85 | static inline void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc) | |
86 | { | |
87 | } | |
88 | ||
400e1286 | 89 | static inline void ceph_fscache_register_inode_cookie(struct inode *inode) |
f0702876 | 90 | { |
f0702876 JL |
91 | } |
92 | ||
400e1286 | 93 | static inline void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci) |
46b59b2b YZ |
94 | { |
95 | } | |
96 | ||
400e1286 | 97 | static inline void ceph_fscache_use_cookie(struct inode *inode, bool will_modify) |
46b59b2b YZ |
98 | { |
99 | } | |
100 | ||
400e1286 | 101 | static inline void ceph_fscache_unuse_cookie(struct inode *inode, bool update) |
99ccbd22 MT |
102 | { |
103 | } | |
104 | ||
400e1286 | 105 | static inline void ceph_fscache_update(struct inode *inode) |
99ccbd22 MT |
106 | { |
107 | } | |
108 | ||
400e1286 JL |
109 | static inline void ceph_fscache_invalidate(struct inode *inode, bool dio_write) |
110 | { | |
111 | } | |
112 | ||
113 | static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci) | |
114 | { | |
115 | return NULL; | |
116 | } | |
117 | ||
118 | static inline void ceph_fscache_resize(struct inode *inode, loff_t to) | |
119 | { | |
120 | } | |
121 | ||
122 | static inline void ceph_fscache_unpin_writeback(struct inode *inode, | |
123 | struct writeback_control *wbc) | |
124 | { | |
125 | } | |
126 | ||
8fb72b4a MWO |
127 | static inline int ceph_fscache_dirty_folio(struct address_space *mapping, |
128 | struct folio *folio) | |
400e1286 | 129 | { |
8fb72b4a | 130 | return filemap_dirty_folio(mapping, folio); |
400e1286 JL |
131 | } |
132 | ||
f0702876 JL |
133 | static inline bool ceph_is_cache_enabled(struct inode *inode) |
134 | { | |
135 | return false; | |
136 | } | |
137 | ||
6a19114b | 138 | static inline int ceph_begin_cache_operation(struct netfs_io_request *rreq) |
f0702876 JL |
139 | { |
140 | return -ENOBUFS; | |
141 | } | |
99ccbd22 | 142 | |
400e1286 JL |
143 | static inline void ceph_fscache_note_page_release(struct inode *inode) |
144 | { | |
145 | } | |
146 | #endif /* CONFIG_CEPH_FSCACHE */ | |
147 | ||
148 | #endif |