cregit-Linux how code gets into the kernel

Release 4.11 fs/ceph/cache.h

Directory: fs/ceph
/*
 * Ceph cache definitions.
 *
 *  Copyright (C) 2013 by Adfin Solutions, Inc. All Rights Reserved.
 *  Written by Milosz Tanski (milosz@adfin.com)
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2
 *  as published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to:
 *  Free Software Foundation
 *  51 Franklin Street, Fifth Floor
 *  Boston, MA  02111-1301  USA
 *
 */

#ifndef _CEPH_CACHE_H

#define _CEPH_CACHE_H

#ifdef CONFIG_CEPH_FSCACHE

extern struct fscache_netfs ceph_cache_netfs;

int ceph_fscache_register(void);
void ceph_fscache_unregister(void);

int ceph_fscache_register_fs(struct ceph_fs_client* fsc);
void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc);

void ceph_fscache_register_inode_cookie(struct inode *inode);
void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci);
void ceph_fscache_file_set_cookie(struct inode *inode, struct file *filp);
void ceph_fscache_revalidate_cookie(struct ceph_inode_info *ci);

int ceph_readpage_from_fscache(struct inode *inode, struct page *page);
int ceph_readpages_from_fscache(struct inode *inode,
				struct address_space *mapping,
				struct list_head *pages,
				unsigned *nr_pages);
void ceph_readpage_to_fscache(struct inode *inode, struct page *page);
void ceph_invalidate_fscache_page(struct inode* inode, struct page *page);


static inline void ceph_fscache_inode_init(struct ceph_inode_info *ci) { ci->fscache = NULL; ci->i_fscache_gen = 0; }

Contributors

PersonTokensPropCommitsCommitProp
Yan, Zheng1979.17%150.00%
Milosz Tanski520.83%150.00%
Total24100.00%2100.00%


static inline void ceph_fscache_invalidate(struct inode *inode) { fscache_invalidate(ceph_inode(inode)->fscache); }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski22100.00%1100.00%
Total22100.00%1100.00%


static inline void ceph_fscache_uncache_page(struct inode *inode, struct page *page) { struct ceph_inode_info *ci = ceph_inode(inode); return fscache_uncache_page(ci->fscache, page); }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski37100.00%1100.00%
Total37100.00%1100.00%


static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp) { struct inode* inode = page->mapping->host; struct ceph_inode_info *ci = ceph_inode(inode); return fscache_maybe_release_page(ci->fscache, page, gfp); }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski48100.00%1100.00%
Total48100.00%1100.00%


static inline void ceph_fscache_readpage_cancel(struct inode *inode, struct page *page) { struct ceph_inode_info *ci = ceph_inode(inode); if (fscache_cookie_valid(ci->fscache) && PageFsCache(page)) __fscache_uncache_page(ci->fscache, page); }

Contributors

PersonTokensPropCommitsCommitProp
Li Wang50100.00%1100.00%
Total50100.00%1100.00%


static inline void ceph_fscache_readpages_cancel(struct inode *inode, struct list_head *pages) { struct ceph_inode_info *ci = ceph_inode(inode); return fscache_readpages_cancel(ci->fscache, pages); }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski37100.00%1100.00%
Total37100.00%1100.00%


static inline void ceph_disable_fscache_readpage(struct ceph_inode_info *ci) { ci->i_fscache_gen = ci->i_rdcache_gen - 1; }

Contributors

PersonTokensPropCommitsCommitProp
Yan, Zheng22100.00%1100.00%
Total22100.00%1100.00%

#else
static inline int ceph_fscache_register(void) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski12100.00%1100.00%
Total12100.00%1100.00%


static inline void ceph_fscache_unregister(void) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski8100.00%1100.00%
Total8100.00%1100.00%


static inline int ceph_fscache_register_fs(struct ceph_fs_client* fsc) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski15100.00%1100.00%
Total15100.00%1100.00%


static inline void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski11100.00%1100.00%
Total11100.00%1100.00%


static inline void ceph_fscache_inode_init(struct ceph_inode_info *ci) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski11100.00%1100.00%
Total11100.00%1100.00%


static inline void ceph_fscache_register_inode_cookie(struct inode *inode) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski763.64%150.00%
Yan, Zheng436.36%150.00%
Total11100.00%2100.00%


static inline void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski654.55%150.00%
Yan, Zheng545.45%150.00%
Total11100.00%2100.00%


static inline void ceph_fscache_file_set_cookie(struct inode *inode, struct file *filp) { }

Contributors

PersonTokensPropCommitsCommitProp
Yan, Zheng16100.00%1100.00%
Total16100.00%1100.00%


static inline void ceph_fscache_revalidate_cookie(struct ceph_inode_info *ci) { }

Contributors

PersonTokensPropCommitsCommitProp
Yan, Zheng11100.00%1100.00%
Total11100.00%1100.00%


static inline void ceph_fscache_uncache_page(struct inode *inode, struct page *pages) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski16100.00%2100.00%
Total16100.00%2100.00%


static inline int ceph_readpage_from_fscache(struct inode* inode, struct page *page) { return -ENOBUFS; }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski21100.00%1100.00%
Total21100.00%1100.00%


static inline int ceph_readpages_from_fscache(struct inode *inode, struct address_space *mapping, struct list_head *pages, unsigned *nr_pages) { return -ENOBUFS; }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski30100.00%1100.00%
Total30100.00%1100.00%


static inline void ceph_readpage_to_fscache(struct inode *inode, struct page *page) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski1593.75%150.00%
Yunchuan Wen16.25%150.00%
Total16100.00%2100.00%


static inline void ceph_fscache_invalidate(struct inode *inode) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski11100.00%1100.00%
Total11100.00%1100.00%


static inline void ceph_invalidate_fscache_page(struct inode *inode, struct page *page) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski16100.00%1100.00%
Total16100.00%1100.00%


static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp) { return 1; }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski18100.00%1100.00%
Total18100.00%1100.00%


static inline void ceph_fscache_readpage_cancel(struct inode *inode, struct page *page) { }

Contributors

PersonTokensPropCommitsCommitProp
Li Wang16100.00%1100.00%
Total16100.00%1100.00%


static inline void ceph_fscache_readpages_cancel(struct inode *inode, struct list_head *pages) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski16100.00%1100.00%
Total16100.00%1100.00%


static inline void ceph_disable_fscache_readpage(struct ceph_inode_info *ci) { }

Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski872.73%150.00%
Yan, Zheng327.27%150.00%
Total11100.00%2100.00%

#endif #endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Milosz Tanski50374.63%450.00%
Yan, Zheng10415.43%225.00%
Li Wang669.79%112.50%
Yunchuan Wen10.15%112.50%
Total674100.00%8100.00%
Directory: fs/ceph
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