* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2013, 2014, Intel Corporation.
+ * Copyright (c) 2013, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
enum obd_notify_event;
struct inode;
-struct lov_stripe_md;
struct lustre_md;
-struct obd_capa;
struct obd_device;
struct obd_export;
struct page;
-blkcnt_t dirty_cnt(struct inode *inode);
-
-int cl_glimpse_size0(struct inode *inode, int agl);
-int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io,
- struct inode *inode, struct cl_object *clob, int agl);
-
-static inline int cl_glimpse_size(struct inode *inode)
-{
- return cl_glimpse_size0(inode, 0);
-}
-
-static inline int cl_agl(struct inode *inode)
-{
- return cl_glimpse_size0(inode, 1);
-}
-
-/**
- * Locking policy for setattr.
- */
-enum ccc_setattr_lock_type {
- /** Locking is done by server */
- SETATTR_NOLOCK,
- /** Extent lock is enqueued */
- SETATTR_EXTENT_LOCK,
- /** Existing local extent lock is used */
- SETATTR_MATCH_LOCK
-};
-
enum vvp_io_subtype {
/** normal IO */
IO_NORMAL,
/**
* I/O vector information to or from which read/write is going.
*/
- struct iovec *vui_iov;
- unsigned long vui_nrsegs;
- /**
- * Total iov count for left IO.
- */
- unsigned long vui_tot_nrsegs;
- /**
- * Old length for iov that was truncated partially.
- */
- size_t vui_iov_olen;
+ struct iov_iter *vui_iter;
/**
* Total size for the left IO.
*/
bool ft_flags_valid;
} fault;
struct {
- enum ccc_setattr_lock_type vui_local_lock;
- } setattr;
- struct {
struct pipe_inode_info *vui_pipe;
unsigned int vui_flags;
} splice;
bool vui_ra_valid;
};
-/**
- * True, if \a io is a normal io, False for other splice_{read,write}.
- * must be impementated in arch specific code.
- */
-int cl_is_normalio(const struct lu_env *env, const struct cl_io *io);
+extern struct lu_device_type vvp_device_type;
-extern struct lu_context_key ccc_key;
extern struct lu_context_key vvp_session_key;
+extern struct lu_context_key vvp_thread_key;
extern struct kmem_cache *vvp_lock_kmem;
extern struct kmem_cache *vvp_object_kmem;
-struct ccc_thread_info {
- struct cl_lock cti_lock;
- struct cl_lock_descr cti_descr;
- struct cl_io cti_io;
- struct cl_attr cti_attr;
+struct vvp_thread_info {
+ struct cl_lock vti_lock;
+ struct cl_lock_descr vti_descr;
+ struct cl_io vti_io;
+ struct cl_attr vti_attr;
};
-static inline struct ccc_thread_info *ccc_env_info(const struct lu_env *env)
+static inline struct vvp_thread_info *vvp_env_info(const struct lu_env *env)
{
- struct ccc_thread_info *info;
+ struct vvp_thread_info *vti;
- info = lu_context_key_get(&env->le_ctx, &ccc_key);
- LASSERT(info != NULL);
+ vti = lu_context_key_get(&env->le_ctx, &vvp_thread_key);
+ LASSERT(vti != NULL);
- return info;
+ return vti;
}
-static inline struct cl_lock *ccc_env_lock(const struct lu_env *env)
+static inline struct cl_lock *vvp_env_lock(const struct lu_env *env)
{
- struct cl_lock *lock = &ccc_env_info(env)->cti_lock;
+ struct cl_lock *lock = &vvp_env_info(env)->vti_lock;
memset(lock, 0, sizeof(*lock));
return lock;
}
-static inline struct cl_attr *ccc_env_thread_attr(const struct lu_env *env)
+static inline struct cl_attr *vvp_env_thread_attr(const struct lu_env *env)
{
- struct cl_attr *attr = &ccc_env_info(env)->cti_attr;
+ struct cl_attr *attr = &vvp_env_info(env)->vti_attr;
memset(attr, 0, sizeof(*attr));
return attr;
}
-static inline struct cl_io *ccc_env_thread_io(const struct lu_env *env)
+static inline struct cl_io *vvp_env_thread_io(const struct lu_env *env)
{
- struct cl_io *io = &ccc_env_info(env)->cti_io;
+ struct cl_io *io = &vvp_env_info(env)->vti_io;
memset(io, 0, sizeof(*io));
}
struct vvp_session {
- struct vvp_io cs_ios;
+ struct vvp_io vs_ios;
};
static inline struct vvp_session *vvp_env_session(const struct lu_env *env)
static inline struct vvp_io *vvp_env_io(const struct lu_env *env)
{
- return &vvp_env_session(env)->cs_ios;
+ return &vvp_env_session(env)->vs_ios;
}
/**
- * ccc-private object state.
+ * VPP-private object state.
*/
struct vvp_object {
struct cl_object_header vob_header;
struct inode *vob_inode;
/**
- * A list of dirty pages pending IO in the cache. Used by
- * SOM. Protected by ll_inode_info::lli_lock.
- *
- * \see vvp_page::vpg_pending_linkage
- */
- struct list_head vob_pending_list;
-
- /**
* Number of transient pages. This is no longer protected by i_sem,
* and needs to be atomic. This is not actually used for anything,
* and can probably be removed.
struct vvp_page {
struct cl_page_slice vpg_cl;
unsigned vpg_defer_uptodate:1,
- vpg_ra_used:1,
- vpg_write_queued:1;
- /**
- * Non-empty iff this page is already counted in
- * vvp_object::vob_pending_list. This list is only used as a flag,
- * that is, never iterated through, only checked for list_empty(), but
- * having a list is useful for debugging.
- */
- struct list_head vpg_pending_linkage;
+ vpg_ra_updated:1,
+ vpg_ra_used:1;
/** VM page */
struct page *vpg_page;
};
struct vvp_device {
struct cl_device vdv_cl;
- struct super_block *vdv_sb;
struct cl_device *vdv_next;
};
struct cl_lock_slice vlk_cl;
};
-struct ccc_req {
- struct cl_req_slice crq_cl;
-};
-
-void *ccc_key_init(const struct lu_context *ctx, struct lu_context_key *key);
-void ccc_key_fini(const struct lu_context *ctx, struct lu_context_key *key,
- void *data);
-
-int ccc_req_init(const struct lu_env *env, struct cl_device *dev,
- struct cl_req *req);
-void ccc_umount(const struct lu_env *env, struct cl_device *dev);
-int ccc_global_init(struct lu_device_type *device_type);
-void ccc_global_fini(struct lu_device_type *device_type);
-
-int vvp_io_one_lock_index(const struct lu_env *env, struct cl_io *io,
- __u32 enqflags, enum cl_lock_mode mode,
- pgoff_t start, pgoff_t end);
-int vvp_io_one_lock(const struct lu_env *env, struct cl_io *io,
- __u32 enqflags, enum cl_lock_mode mode,
- loff_t start, loff_t end);
-void vvp_io_end(const struct lu_env *env, const struct cl_io_slice *ios);
-void vvp_io_advance(const struct lu_env *env, const struct cl_io_slice *ios,
- size_t nob);
-void vvp_io_update_iov(const struct lu_env *env, struct vvp_io *cio,
- struct cl_io *io);
-int ccc_prep_size(const struct lu_env *env, struct cl_object *obj,
- struct cl_io *io, loff_t start, size_t count, int *exceed);
-void ccc_req_completion(const struct lu_env *env,
- const struct cl_req_slice *slice, int ioret);
-void ccc_req_attr_set(const struct lu_env *env,
- const struct cl_req_slice *slice,
- const struct cl_object *obj,
- struct cl_req_attr *oa, obd_valid flags);
-
static inline struct lu_device *vvp2lu_dev(struct vvp_device *vdv)
{
return &vdv->vdv_cl.cd_lu_dev;
return container_of(slice, struct vvp_lock, vlk_cl);
}
-struct vvp_io *cl2vvp_io(const struct lu_env *env,
- const struct cl_io_slice *slice);
-struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice);
-
-int cl_setattr_ost(struct inode *inode, const struct iattr *attr,
- struct obd_capa *capa);
-
-int cl_file_inode_init(struct inode *inode, struct lustre_md *md);
-void cl_inode_fini(struct inode *inode);
-int cl_local_size(struct inode *inode);
-
-__u16 ll_dirent_type_get(struct lu_dirent *ent);
-__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32);
-__u32 cl_fid_build_gen(const struct lu_fid *fid);
-
#ifdef CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK
# define CLOBINVRNT(env, clob, expr) \
do { \
if (unlikely(!(expr))) { \
LU_OBJECT_DEBUG(D_ERROR, (env), &(clob)->co_lu, \
- #expr "\n"); \
+ #expr); \
LINVRNT(0); \
} \
} while (0)
((void)sizeof(env), (void)sizeof(clob), (void)sizeof !!(expr))
#endif /* CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK */
-int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp);
-int cl_ocd_update(struct obd_device *host,
- struct obd_device *watched,
- enum obd_notify_event ev, void *owner, void *data);
-
-struct ccc_grouplock {
- struct lu_env *cg_env;
- struct cl_io *cg_io;
- struct cl_lock *cg_lock;
- unsigned long cg_gid;
-};
-
-int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock,
- struct ccc_grouplock *cg);
-void cl_put_grouplock(struct ccc_grouplock *cg);
-
-/**
- * New interfaces to get and put lov_stripe_md from lov layer. This violates
- * layering because lov_stripe_md is supposed to be a private data in lov.
- *
- * NB: If you find you have to use these interfaces for your new code, please
- * think about it again. These interfaces may be removed in the future for
- * better layering. */
-struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj);
-void lov_lsm_put(struct cl_object *clobj, struct lov_stripe_md *lsm);
int lov_read_and_clear_async_rc(struct cl_object *clob);
-struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode);
-void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm);
-
-enum {
- LUSTRE_OPC_MKDIR = 0,
- LUSTRE_OPC_SYMLINK = 1,
- LUSTRE_OPC_MKNOD = 2,
- LUSTRE_OPC_CREATE = 3,
- LUSTRE_OPC_ANY = 5,
-};
-
int vvp_io_init(const struct lu_env *env, struct cl_object *obj,
struct cl_io *io);
+int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io);
int vvp_lock_init(const struct lu_env *env, struct cl_object *obj,
struct cl_lock *lock, const struct cl_io *io);
int vvp_page_init(const struct lu_env *env, struct cl_object *obj,
const struct lu_object_header *hdr,
struct lu_device *dev);
+int vvp_global_init(void);
+void vvp_global_fini(void);
+
extern const struct file_operations vvp_dump_pgcache_file_ops;
#endif /* VVP_INTERNAL_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff