^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Ceph cache definitions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2013 by Adfin Solutions, Inc. All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Written by Milosz Tanski (milosz@adfin.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #ifndef _CEPH_CACHE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define _CEPH_CACHE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #ifdef CONFIG_CEPH_FSCACHE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) extern struct fscache_netfs ceph_cache_netfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) int ceph_fscache_register(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) void ceph_fscache_unregister(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) int ceph_fscache_register_fs(struct ceph_fs_client* fsc, struct fs_context *fc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) void ceph_fscache_register_inode_cookie(struct inode *inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) void ceph_fscache_file_set_cookie(struct inode *inode, struct file *filp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) void ceph_fscache_revalidate_cookie(struct ceph_inode_info *ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) int ceph_readpage_from_fscache(struct inode *inode, struct page *page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) int ceph_readpages_from_fscache(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct address_space *mapping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct list_head *pages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) unsigned *nr_pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) void ceph_readpage_to_fscache(struct inode *inode, struct page *page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) void ceph_invalidate_fscache_page(struct inode* inode, struct page *page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static inline void ceph_fscache_inode_init(struct ceph_inode_info *ci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) ci->fscache = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) ci->i_fscache_gen = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static inline void ceph_fscache_invalidate(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) fscache_invalidate(ceph_inode(inode)->fscache);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static inline void ceph_fscache_uncache_page(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct page *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct ceph_inode_info *ci = ceph_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) return fscache_uncache_page(ci->fscache, page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct inode* inode = page->mapping->host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct ceph_inode_info *ci = ceph_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) return fscache_maybe_release_page(ci->fscache, page, gfp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static inline void ceph_fscache_readpage_cancel(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct page *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct ceph_inode_info *ci = ceph_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) if (fscache_cookie_valid(ci->fscache) && PageFsCache(page))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) __fscache_uncache_page(ci->fscache, page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static inline void ceph_fscache_readpages_cancel(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct list_head *pages)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct ceph_inode_info *ci = ceph_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) return fscache_readpages_cancel(ci->fscache, pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static inline void ceph_disable_fscache_readpage(struct ceph_inode_info *ci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) ci->i_fscache_gen = ci->i_rdcache_gen - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static inline int ceph_fscache_register(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static inline void ceph_fscache_unregister(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static inline int ceph_fscache_register_fs(struct ceph_fs_client* fsc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct fs_context *fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static inline void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static inline void ceph_fscache_inode_init(struct ceph_inode_info *ci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static inline void ceph_fscache_register_inode_cookie(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static inline void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static inline void ceph_fscache_file_set_cookie(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct file *filp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) static inline void ceph_fscache_revalidate_cookie(struct ceph_inode_info *ci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static inline void ceph_fscache_uncache_page(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) struct page *pages)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static inline int ceph_readpage_from_fscache(struct inode* inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct page *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) static inline int ceph_readpages_from_fscache(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct address_space *mapping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct list_head *pages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) unsigned *nr_pages)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) static inline void ceph_readpage_to_fscache(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) struct page *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static inline void ceph_fscache_invalidate(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) static inline void ceph_invalidate_fscache_page(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct page *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) static inline void ceph_fscache_readpage_cancel(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct page *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static inline void ceph_fscache_readpages_cancel(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct list_head *pages)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static inline void ceph_disable_fscache_readpage(struct ceph_inode_info *ci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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