-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#ifndef LCLIENT_H
#define LCLIENT_H
-int cl_glimpse_size(struct inode *inode);
+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);
+ struct inode *inode, struct cl_object *clob, int agl);
-/**
- * Common IO arguments for various VFS I/O interfaces.
- */
-struct ccc_io_args {
- int cia_is_sendfile;
-#ifndef HAVE_FILE_WRITEV
- struct kiocb *cia_iocb;
-#endif
- struct iovec *cia_iov;
- unsigned long cia_nrsegs;
- read_actor_t cia_actor;
- void *cia_target;
-};
+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 truncate.
+ * Locking policy for setattr.
*/
-enum ccc_trunc_lock_type {
+enum ccc_setattr_lock_type {
/** Locking is done by server */
- TRUNC_NOLOCK,
+ SETATTR_NOLOCK,
/** Extent lock is enqueued */
- TRUNC_EXTENT,
+ SETATTR_EXTENT_LOCK,
/** Existing local extent lock is used */
- TRUNC_MATCH
+ SETATTR_MATCH_LOCK
};
+
/**
* IO state private to vvp or slp layers.
*/
union {
struct {
- int cui_locks_released;
- enum ccc_trunc_lock_type cui_local_lock;
- } trunc;
+ int cui_locks_released;
+ enum ccc_setattr_lock_type cui_local_lock;
+ } setattr;
} u;
/**
* True iff io is processing glimpse right now.
*/
int cui_glimpse;
+ /**
+ * Layout version when this IO is initialized
+ */
+ __u32 cui_layout_gen;
/**
* File descriptor against which IO is done.
*/
#endif
};
+/**
+ * True, if \a io is a normal io, False for other (sendfile, splice*).
+ * must be impementated in arch specific code.
+ */
+int cl_is_normalio(const struct lu_env *env, const struct cl_io *io);
+
extern struct lu_context_key ccc_key;
extern struct lu_context_key ccc_session_key;
struct ccc_thread_info {
struct cl_lock_descr cti_descr;
struct cl_io cti_io;
- struct cl_sync_io cti_sync_io;
struct cl_attr cti_attr;
};
return info;
}
+static inline struct cl_attr *ccc_env_thread_attr(const struct lu_env *env)
+{
+ struct cl_attr *attr = &ccc_env_info(env)->cti_attr;
+ memset(attr, 0, sizeof(*attr));
+ return attr;
+}
+
+static inline struct cl_io *ccc_env_thread_io(const struct lu_env *env)
+{
+ struct cl_io *io = &ccc_env_info(env)->cti_io;
+ memset(io, 0, sizeof(*io));
+ return io;
+}
+
struct ccc_session {
struct ccc_io cs_ios;
};
*
* \see ccc_page::cpg_pending_linkage
*/
- struct list_head cob_pending_list;
+ cfs_list_t cob_pending_list;
/**
* Access this counter is protected by inode->i_sem. Now that
*
* \see ll_vm_open(), ll_vm_close().
*/
- atomic_t cob_mmap_cnt;
+ cfs_atomic_t cob_mmap_cnt;
+
+ /**
+ * various flags
+ * cob_discard_page_warned
+ * if pages belonging to this object are discarded when a client
+ * is evicted, some debug info will be printed, this flag will be set
+ * during processing the first discarded page, then avoid flooding
+ * debug message for lots of discarded pages.
+ *
+ * \see ll_dirty_page_discard_warn.
+ */
+ int cob_discard_page_warned:1;
};
/**
* that is, never iterated through, only checked for list_empty(), but
* having a list is useful for debugging.
*/
- struct list_head cpg_pending_linkage;
+ cfs_list_t cpg_pending_linkage;
/** VM page */
cfs_page_t *cpg_page;
- struct cl_sync_io *cpg_sync_io;
- /**
- * checksum for paranoid I/O debugging enabled by
- * ENABLE_LLITE_CHECKSUM configuration option.
- *
- * XXX This cannot be implemented reliably because checksum cannot be
- * updated from ->set_page_dirty() that is called without page VM
- * lock.
- */
- __u32 cpg_checksum;
};
static inline struct ccc_page *cl2ccc_page(const struct cl_page_slice *slice)
const struct cl_page_slice *slice, struct cl_io *io);
int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice);
void ccc_transient_page_verify(const struct cl_page *page);
-void ccc_transient_page_own(const struct lu_env *env,
+int ccc_transient_page_own(const struct lu_env *env,
const struct cl_page_slice *slice,
- struct cl_io *io);
+ struct cl_io *io, int nonblock);
void ccc_transient_page_assume(const struct lu_env *env,
const struct cl_page_slice *slice,
struct cl_io *io);
__u32 enqflags, enum cl_lock_mode mode,
loff_t start, loff_t end);
void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios);
+void ccc_io_advance(const struct lu_env *env, const struct cl_io_slice *ios,
+ size_t nob);
+void ccc_io_update_iov(const struct lu_env *env, struct ccc_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 vfslock,
- int *exceed);
+ 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,
struct inode *ccc_object_inode(const struct cl_object *obj);
struct ccc_object *cl_inode2ccc (struct inode *inode);
-int cl_setattr_do_truncate(struct inode *inode, loff_t size,
- struct obd_capa *capa);
-int cl_setattr_ost(struct inode *inode, struct obd_capa *capa);
+int cl_setattr_ost(struct inode *inode, const struct iattr *attr,
+ struct obd_capa *capa);
struct cl_page *ccc_vmpage_page_transient(cfs_page_t *vmpage);
int ccc_object_invariant(const struct cl_object *obj);
-int cl_inode_init(struct inode *inode, struct lustre_md *md);
+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 INVARIANT_CHECK
# define CLOBINVRNT(env, clob, expr) \
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);
+ 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;
};
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);
+
+/**
+ * Data structures for LRU management on lustre client mount
+ */
+struct cl_client_lru {
+ cfs_atomic_t ccl_users; /* how many users(OSCs) of this data */
+ cfs_atomic_t ccl_page_left;
+ unsigned long ccl_page_max;
+ cfs_list_t ccl_list; /* entities for lru - actually osc list */
+ cfs_spinlock_t ccl_lock; /* lock for list */
+ unsigned int ccl_reclaim_count; /* statistics */
+};
+
#endif /*LCLIENT_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff