2 * Ceph cache definitions.
4 * Copyright (C) 2013 by Adfin Solutions, Inc. All Rights Reserved.
5 * Written by Milosz Tanski (milosz@adfin.com)
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2
9 * as published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to:
18 * Free Software Foundation
19 * 51 Franklin Street, Fifth Floor
20 * Boston, MA 02111-1301 USA
27 #ifdef CONFIG_CEPH_FSCACHE
29 extern struct fscache_netfs ceph_cache_netfs;
31 int ceph_fscache_register(void);
32 void ceph_fscache_unregister(void);
34 int ceph_fscache_register_fs(struct ceph_fs_client* fsc);
35 void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc);
37 void ceph_fscache_inode_init(struct ceph_inode_info *ci);
38 void ceph_fscache_register_inode_cookie(struct ceph_fs_client* fsc,
39 struct ceph_inode_info* ci);
40 void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci);
42 int ceph_readpage_from_fscache(struct inode *inode, struct page *page);
43 int ceph_readpages_from_fscache(struct inode *inode,
44 struct address_space *mapping,
45 struct list_head *pages,
47 void ceph_readpage_to_fscache(struct inode *inode, struct page *page);
48 void ceph_invalidate_fscache_page(struct inode* inode, struct page *page);
49 void ceph_queue_revalidate(struct inode *inode);
51 static inline void ceph_fscache_invalidate(struct inode *inode)
53 fscache_invalidate(ceph_inode(inode)->fscache);
56 static inline void ceph_fscache_uncache_page(struct inode *inode,
59 struct ceph_inode_info *ci = ceph_inode(inode);
60 return fscache_uncache_page(ci->fscache, page);
63 static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp)
65 struct inode* inode = page->mapping->host;
66 struct ceph_inode_info *ci = ceph_inode(inode);
67 return fscache_maybe_release_page(ci->fscache, page, gfp);
70 static inline void ceph_fscache_readpage_cancel(struct inode *inode,
73 struct ceph_inode_info *ci = ceph_inode(inode);
74 if (fscache_cookie_valid(ci->fscache) && PageFsCache(page))
75 __fscache_uncache_page(ci->fscache, page);
78 static inline void ceph_fscache_readpages_cancel(struct inode *inode,
79 struct list_head *pages)
81 struct ceph_inode_info *ci = ceph_inode(inode);
82 return fscache_readpages_cancel(ci->fscache, pages);
87 static inline int ceph_fscache_register(void)
92 static inline void ceph_fscache_unregister(void)
96 static inline int ceph_fscache_register_fs(struct ceph_fs_client* fsc)
101 static inline void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc)
105 static inline void ceph_fscache_inode_init(struct ceph_inode_info *ci)
109 static inline void ceph_fscache_register_inode_cookie(struct ceph_fs_client* parent_fsc,
110 struct ceph_inode_info* ci)
114 static inline void ceph_fscache_uncache_page(struct inode *inode,
119 static inline int ceph_readpage_from_fscache(struct inode* inode,
125 static inline int ceph_readpages_from_fscache(struct inode *inode,
126 struct address_space *mapping,
127 struct list_head *pages,
133 static inline void ceph_readpage_to_fscache(struct inode *inode,
138 static inline void ceph_fscache_invalidate(struct inode *inode)
142 static inline void ceph_invalidate_fscache_page(struct inode *inode,
147 static inline void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci)
151 static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp)
156 static inline void ceph_fscache_readpage_cancel(struct inode *inode,
161 static inline void ceph_fscache_readpages_cancel(struct inode *inode,
162 struct list_head *pages)
166 static inline void ceph_queue_revalidate(struct inode *inode)