/* SPDX-License-Identifier: GPL-2.0-only *//* * Ceph cache definitions. * * Copyright (C) 2013 by Adfin Solutions, Inc. All Rights Reserved. * Written by Milosz Tanski (milosz@adfin.com) */ #ifndef _CEPH_CACHE_H#define _CEPH_CACHE_H #include <linux/netfs.h> #ifdef CONFIG_CEPH_FSCACHE#include <linux/fscache.h> int ceph_fscache_register_fs(struct ceph_fs_client* fsc, struct fs_context *fc);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_use_cookie(struct inode *inode, bool will_modify);void ceph_fscache_unuse_cookie(struct inode *inode, bool update); void ceph_fscache_update(struct inode *inode);void ceph_fscache_invalidate(struct inode *inode, bool dio_write); static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci){ return netfs_i_cookie(&ci->netfs);} static inline void ceph_fscache_resize(struct inode *inode, loff_t to){ struct ceph_inode_info *ci = ceph_inode(inode); struct fscache_cookie *cookie = ceph_fscache_cookie(ci); if (cookie) { ceph_fscache_use_cookie(inode, true); fscache_resize_cookie(cookie, to); ceph_fscache_unuse_cookie(inode, true); }} static inline int ceph_fscache_unpin_writeback(struct inode *inode, struct writeback_control *wbc){ return netfs_unpin_writeback(inode, wbc);} #define ceph_fscache_dirty_folio netfs_dirty_folio static inline bool ceph_is_cache_enabled(struct inode *inode){ return fscache_cookie_enabled(ceph_fscache_cookie(ceph_inode(inode)));} #else /* CONFIG_CEPH_FSCACHE */static inline int ceph_fscache_register_fs(struct ceph_fs_client* fsc, struct fs_context *fc){ return 0;} static inline void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc){} static inline void ceph_fscache_register_inode_cookie(struct inode *inode){} static inline void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci){} static inline void ceph_fscache_use_cookie(struct inode *inode, bool will_modify){} static inline void ceph_fscache_unuse_cookie(struct inode *inode, bool update){} static inline void ceph_fscache_update(struct inode *inode){} static inline void ceph_fscache_invalidate(struct inode *inode, bool dio_write){} static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci){ return NULL;} static inline void ceph_fscache_resize(struct inode *inode, loff_t to){} static inline int ceph_fscache_unpin_writeback(struct inode *inode, struct writeback_control *wbc){ return 0;} #define ceph_fscache_dirty_folio filemap_dirty_folio static inline bool ceph_is_cache_enabled(struct inode *inode){ return false;}#endif /* CONFIG_CEPH_FSCACHE */ #endif
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Ceph cache definitions.
*
* Copyright (C) 2013 by Adfin Solutions, Inc. All Rights Reserved.
* Written by Milosz Tanski (milosz@adfin.com)
*/
#ifndef _CEPH_CACHE_H
#define _CEPH_CACHE_H
#include <linux/netfs.h>
#ifdef CONFIG_CEPH_FSCACHE
#include <linux/fscache.h>
int ceph_fscache_register_fs(struct ceph_fs_client* fsc, struct fs_context *fc);
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_use_cookie(struct inode *inode, bool will_modify);
void ceph_fscache_unuse_cookie(struct inode *inode, bool update);
void ceph_fscache_update(struct inode *inode);
void ceph_fscache_invalidate(struct inode *inode, bool dio_write);
static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci)
{
return netfs_i_cookie(&ci->netfs);
}
static inline void ceph_fscache_resize(struct inode *inode, loff_t to)
{
struct ceph_inode_info *ci = ceph_inode(inode);
struct fscache_cookie *cookie = ceph_fscache_cookie(ci);
if (cookie) {
ceph_fscache_use_cookie(inode, true);
fscache_resize_cookie(cookie, to);
ceph_fscache_unuse_cookie(inode, true);
}
}
static inline int ceph_fscache_unpin_writeback(struct inode *inode,
struct writeback_control *wbc)
{
return netfs_unpin_writeback(inode, wbc);
}
#define ceph_fscache_dirty_folio netfs_dirty_folio
static inline bool ceph_is_cache_enabled(struct inode *inode)
{
return fscache_cookie_enabled(ceph_fscache_cookie(ceph_inode(inode)));
}
#else /* CONFIG_CEPH_FSCACHE */
static inline int ceph_fscache_register_fs(struct ceph_fs_client* fsc,
struct fs_context *fc)
{
return 0;
}
static inline void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc)
{
}
static inline void ceph_fscache_register_inode_cookie(struct inode *inode)
{
}
static inline void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci)
{
}
static inline void ceph_fscache_use_cookie(struct inode *inode, bool will_modify)
{
}
static inline void ceph_fscache_unuse_cookie(struct inode *inode, bool update)
{
}
static inline void ceph_fscache_update(struct inode *inode)
{
}
static inline void ceph_fscache_invalidate(struct inode *inode, bool dio_write)
{
}
static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci)
{
return NULL;
}
static inline void ceph_fscache_resize(struct inode *inode, loff_t to)
{
}
static inline int ceph_fscache_unpin_writeback(struct inode *inode,
struct writeback_control *wbc)
{
return 0;
}
#define ceph_fscache_dirty_folio filemap_dirty_folio
static inline bool ceph_is_cache_enabled(struct inode *inode)
{
return false;
}
#endif /* CONFIG_CEPH_FSCACHE */
#endif