-/* -*- 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) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#ifndef _LUSTRE_MD_OBJECT_H
#define _LUSTRE_MD_OBJECT_H
+#ifndef HAVE_SERVER_SUPPORT
+# error "client code should not depend on md_object.h"
+#endif /* !HAVE_SERVER_SUPPORT */
+
/** \defgroup md md
* Sub-class of lu_object with methods common for "meta-data" objects in MDT
* stack.
/*
* super-class definitions.
*/
-#include <lu_object.h>
-#include <lvfs.h>
+#include <dt_object.h>
struct md_device;
struct md_device_operations;
struct md_object;
-
-
-enum {
- UCRED_INVALID = -1,
- UCRED_INIT = 0,
- UCRED_OLD = 1,
- UCRED_NEW = 2
-};
-
-struct md_ucred {
- __u32 mu_valid;
- __u32 mu_o_uid;
- __u32 mu_o_gid;
- __u32 mu_o_fsuid;
- __u32 mu_o_fsgid;
- __u32 mu_uid;
- __u32 mu_gid;
- __u32 mu_fsuid;
- __u32 mu_fsgid;
- __u32 mu_suppgids[2];
- cfs_cap_t mu_cap;
- __u32 mu_umask;
- struct group_info *mu_ginfo;
- struct md_identity *mu_identity;
-};
-
-#define MD_CAPAINFO_MAX 5
-
-/** there are at most 5 fids in one operation, see rename, NOTE the last one
- * is a temporary one used for is_subdir() */
-struct md_capainfo {
- const struct lu_fid *mc_fid[MD_CAPAINFO_MAX];
- struct lustre_capa *mc_capa[MD_CAPAINFO_MAX];
-};
-
-/**
- * Implemented in mdd/mdd_handler.c.
- *
- * XXX should be moved into separate .h/.c together with all md security
- * related definitions.
- */
-struct md_ucred *md_ucred(const struct lu_env *env);
-struct md_capainfo *md_capainfo(const struct lu_env *env);
+struct obd_export;
/** metadata attributes */
enum ma_valid {
- MA_INODE = (1 << 0),
- MA_LOV = (1 << 1),
- MA_COOKIE = (1 << 2),
- MA_FLAGS = (1 << 3),
- MA_LMV = (1 << 4),
- MA_ACL_DEF = (1 << 5),
- MA_LOV_DEF = (1 << 6)
+ MA_INODE = (1 << 0),
+ MA_LOV = (1 << 1),
+ MA_COOKIE = (1 << 2),
+ MA_FLAGS = (1 << 3),
+ MA_LMV = (1 << 4),
+ MA_ACL_DEF = (1 << 5),
+ MA_LOV_DEF = (1 << 6),
+ MA_HSM = (1 << 7),
+ MA_SOM = (1 << 8),
+ MA_PFID = (1 << 9),
+ MA_LMV_DEF = (1 << 10)
};
typedef enum {
MDT_PDO_LOCK = (1 << 1)
} mdl_type_t;
+/* memory structure for hsm attributes
+ * for fields description see the on disk structure hsm_attrs
+ * which is defined in lustre_idl.h
+ */
+struct md_hsm {
+ __u32 mh_compat;
+ __u32 mh_flags;
+ __u64 mh_arch_id;
+ __u64 mh_arch_ver;
+};
+
+#define IOEPOCH_INVAL 0
+
+/* memory structure for som attributes
+ * for fields description see the on disk structure som_attrs
+ * which is defined in lustre_idl.h
+ */
+struct md_som_data {
+ __u32 msd_compat;
+ __u32 msd_incompat;
+ __u64 msd_ioepoch;
+ __u64 msd_size;
+ __u64 msd_blocks;
+ __u64 msd_mountid;
+};
+
struct md_attr {
__u64 ma_valid;
__u64 ma_need;
__u64 ma_attr_flags;
struct lu_attr ma_attr;
+ struct lu_fid ma_pfid;
+ struct md_hsm ma_hsm;
struct lov_mds_md *ma_lmm;
+ union lmv_mds_md *ma_lmv;
+ void *ma_acl;
+ struct lustre_capa *ma_capa;
+ struct md_som_data *ma_som;
int ma_lmm_size;
- struct lmv_stripe_md *ma_lmv;
int ma_lmv_size;
- void *ma_acl;
int ma_acl_size;
- struct llog_cookie *ma_cookie;
- int ma_cookie_size;
- struct lustre_capa *ma_capa;
};
/** Additional parameters for create */
union {
/** symlink target */
const char *sp_symname;
- /** parent FID for cross-ref mkdir */
- const struct lu_fid *sp_pfid;
/** eadata for regular files */
struct md_spec_reg {
- /** lov objs exist already */
- const struct lu_fid *fid;
- int no_lov_create;
const void *eadata;
int eadatalen;
} sp_ea;
} u;
-
+
/** Create flag from client: such as MDS_OPEN_CREAT, and others. */
- __u32 sp_cr_flags;
+ __u64 sp_cr_flags;
- /** Should mdd do lookup sanity check or not. */
- int sp_cr_lookup;
+ /** don't create lov objects or llog cookie - this replay */
+ unsigned int no_create:1,
+ sp_cr_lookup:1, /* do lookup sanity check or not. */
+ sp_rm_entry:1, /* only remove name entry */
+ sp_permitted:1; /* do not check permission */
- /** Current lock mode for parent dir where create is performing. */
+ /** Current lock mode for parent dir where create is performing. */
mdl_mode_t sp_cr_mode;
- /** Check for split */
- int sp_ck_split;
+ /** to create directory */
+ const struct dt_index_features *sp_feat;
};
+union ldlm_policy_data;
/**
* Operations implemented for each md object (both directory and leaf).
*/
int (*moo_xattr_del)(const struct lu_env *env, struct md_object *obj,
const char *name);
+ /** This method is used to swap the layouts between 2 objects */
+ int (*moo_swap_layouts)(const struct lu_env *env,
+ struct md_object *obj1, struct md_object *obj2,
+ __u64 flags);
+
+ /** \retval number of bytes actually read upon success */
int (*moo_readpage)(const struct lu_env *env, struct md_object *obj,
const struct lu_rdpg *rdpg);
int (*moo_readlink)(const struct lu_env *env, struct md_object *obj,
struct lu_buf *buf);
-
- /** part of cross-ref operation */
- int (*moo_object_create)(const struct lu_env *env,
- struct md_object *obj,
- const struct md_op_spec *spec,
- struct md_attr *ma);
-
- int (*moo_ref_add)(const struct lu_env *env,
- struct md_object *obj,
- const struct md_attr *ma);
-
- int (*moo_ref_del)(const struct lu_env *env,
- struct md_object *obj,
- struct md_attr *ma);
+ int (*moo_changelog)(const struct lu_env *env,
+ enum changelog_rec_type type, int flags,
+ struct md_object *obj);
int (*moo_open)(const struct lu_env *env,
struct md_object *obj, int flag);
int (*moo_close)(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma);
-
+ struct md_attr *ma, int mode);
+
int (*moo_capa_get)(const struct lu_env *, struct md_object *,
struct lustre_capa *, int renewal);
+
int (*moo_object_sync)(const struct lu_env *, struct md_object *);
+
+ int (*moo_object_lock)(const struct lu_env *env, struct md_object *obj,
+ struct lustre_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ union ldlm_policy_data *policy);
+ int (*moo_object_unlock)(const struct lu_env *env,
+ struct md_object *obj,
+ struct ldlm_enqueue_info *einfo,
+ union ldlm_policy_data *policy);
};
/**
struct md_object *src_obj, const struct lu_name *lname,
struct md_attr *ma);
- int (*mdo_unlink)(const struct lu_env *env, struct md_object *pobj,
- struct md_object *cobj, const struct lu_name *lname,
- struct md_attr *ma);
+ int (*mdo_unlink)(const struct lu_env *env, struct md_object *pobj,
+ struct md_object *cobj, const struct lu_name *lname,
+ struct md_attr *ma, int no_name);
- /** partial ops for cross-ref case */
- int (*mdo_name_insert)(const struct lu_env *env,
- struct md_object *obj,
- const struct lu_name *lname,
- const struct lu_fid *fid,
- const struct md_attr *ma);
-
- int (*mdo_name_remove)(const struct lu_env *env,
- struct md_object *obj,
- const struct lu_name *lname,
- const struct md_attr *ma);
-
- int (*mdo_rename_tgt)(const struct lu_env *env, struct md_object *pobj,
- struct md_object *tobj, const struct lu_fid *fid,
- const struct lu_name *lname, struct md_attr *ma);
+ int (*mdo_migrate)(const struct lu_env *env, struct md_object *pobj,
+ struct md_object *sobj, const struct lu_name *lname,
+ struct md_object *tobj, struct md_attr *ma);
};
struct md_device_operations {
/** meta-data device related handlers. */
- int (*mdo_root_get)(const struct lu_env *env, struct md_device *m,
- struct lu_fid *f);
+ int (*mdo_root_get)(const struct lu_env *env, struct md_device *m,
+ struct lu_fid *f);
- int (*mdo_maxsize_get)(const struct lu_env *env, struct md_device *m,
- int *md_size, int *cookie_size);
+ int (*mdo_maxeasize_get)(const struct lu_env *env, struct md_device *m,
+ int *easize);
int (*mdo_statfs)(const struct lu_env *env, struct md_device *m,
- struct kstatfs *sfs);
+ struct obd_statfs *sfs);
int (*mdo_init_capa_ctxt)(const struct lu_env *env, struct md_device *m,
int mode, unsigned long timeout, __u32 alg,
int (*mdo_update_capa_key)(const struct lu_env *env,
struct md_device *m,
struct lustre_capa_key *key);
-};
-enum md_upcall_event {
- /**sync the md layer*/
- MD_LOV_SYNC = (1 << 0),
- /** Just for split, no need trans, for replay */
- MD_NO_TRANS = (1 << 1),
- MD_LOV_CONFIG = (1 << 2)
-};
+ int (*mdo_llog_ctxt_get)(const struct lu_env *env,
+ struct md_device *m, int idx, void **h);
-struct md_upcall {
- /** this lock protects upcall using against its removal
- * read lock is for usage the upcall, write - for init/fini */
- struct rw_semaphore mu_upcall_sem;
- /** device to call, upper layer normally */
- struct md_device *mu_upcall_dev;
- /** upcall function */
- int (*mu_upcall)(const struct lu_env *env, struct md_device *md,
- enum md_upcall_event ev);
+ int (*mdo_iocontrol)(const struct lu_env *env, struct md_device *m,
+ unsigned int cmd, int len, void *data);
};
struct md_device {
- struct lu_device md_lu_dev;
+ struct lu_device md_lu_dev;
const struct md_device_operations *md_ops;
- struct md_upcall md_upcall;
};
-static inline void md_upcall_init(struct md_device *m, void *upcl)
-{
- init_rwsem(&m->md_upcall.mu_upcall_sem);
- m->md_upcall.mu_upcall_dev = NULL;
- m->md_upcall.mu_upcall = upcl;
-}
-
-static inline void md_upcall_dev_set(struct md_device *m, struct md_device *up)
-{
- down_write(&m->md_upcall.mu_upcall_sem);
- m->md_upcall.mu_upcall_dev = up;
- up_write(&m->md_upcall.mu_upcall_sem);
-}
-
-static inline void md_upcall_fini(struct md_device *m)
-{
- down_write(&m->md_upcall.mu_upcall_sem);
- m->md_upcall.mu_upcall_dev = NULL;
- m->md_upcall.mu_upcall = NULL;
- up_write(&m->md_upcall.mu_upcall_sem);
-}
-
-static inline int md_do_upcall(const struct lu_env *env, struct md_device *m,
- enum md_upcall_event ev)
-{
- int rc = 0;
- down_read(&m->md_upcall.mu_upcall_sem);
- if (m->md_upcall.mu_upcall_dev != NULL &&
- m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall != NULL) {
- rc = m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall(env,
- m->md_upcall.mu_upcall_dev, ev);
- }
- up_read(&m->md_upcall.mu_upcall_sem);
- return rc;
-}
-
struct md_object {
- struct lu_object mo_lu;
+ struct lu_object mo_lu;
const struct md_object_operations *mo_ops;
const struct md_dir_operations *mo_dir_ops;
};
-/**
- * md-server site.
- */
-struct md_site {
- struct lu_site ms_lu;
- /**
- * mds number of this site.
- */
- mdsno_t ms_node_id;
- /**
- * Fid location database
- */
- struct lu_server_fld *ms_server_fld;
- struct lu_client_fld *ms_client_fld;
-
- /**
- * Server Seq Manager
- */
- struct lu_server_seq *ms_server_seq;
-
- /**
- * Controller Seq Manager
- */
- struct lu_server_seq *ms_control_seq;
- struct obd_export *ms_control_exp;
-
- /**
- * Client Seq Manager
- */
- struct lu_client_seq *ms_client_seq;
-};
-
-static inline int lu_device_is_md(const struct lu_device *d)
-{
- return ergo(d != NULL, d->ld_type->ldt_tags & LU_DEVICE_MD);
-}
+/* Mark the object to be dead, and can not be accessed anymore.
+ * XXX, right now, it will only be used for striped directory to
+ * mark the slave stripes dead, when deleting master object. It will be
+ * stored in slave LMV EA (see lod_mark_dead_object), which is only
+ * temporary, and will be removed later when we have proper way to mark
+ * the dead object. */
+#define LUSTRE_SLAVE_DEAD_FL 0x80000000
static inline struct md_device *lu2md_dev(const struct lu_device *d)
{
- LASSERT(lu_device_is_md(d));
+ LASSERT(IS_ERR(d) || lu_device_is_md(d));
return container_of0(d, struct md_device, md_lu_dev);
}
static inline struct md_object *lu2md(const struct lu_object *o)
{
- LASSERT(lu_device_is_md(o->lo_dev));
+ LASSERT(o == NULL || IS_ERR(o) || lu_device_is_md(o->lo_dev));
return container_of0(o, struct md_object, mo_lu);
}
-static inline struct md_object *md_object_next(const struct md_object *obj)
-{
- return (obj ? lu2md(lu_object_next(&obj->mo_lu)) : NULL);
-}
-
-static inline struct md_device *md_obj2dev(const struct md_object *o)
-{
- LASSERT(lu_device_is_md(o->mo_lu.lo_dev));
- return container_of0(o->mo_lu.lo_dev, struct md_device, md_lu_dev);
-}
-
-static inline struct md_site *lu_site2md(const struct lu_site *s)
-{
- return container_of0(s, struct md_site, ms_lu);
-}
-
static inline int md_device_init(struct md_device *md, struct lu_device_type *t)
{
- return lu_device_init(&md->md_lu_dev, t);
+ return lu_device_init(&md->md_lu_dev, t);
}
static inline void md_device_fini(struct md_device *md)
{
- lu_device_fini(&md->md_lu_dev);
+ lu_device_fini(&md->md_lu_dev);
}
static inline struct md_object *md_object_find_slice(const struct lu_env *env,
return m->mo_ops->moo_readlink(env, m, buf);
}
+static inline int mo_changelog(const struct lu_env *env,
+ enum changelog_rec_type type,
+ int flags, struct md_object *m)
+{
+ LASSERT(m->mo_ops->moo_changelog);
+ return m->mo_ops->moo_changelog(env, type, flags, m);
+}
+
static inline int mo_attr_set(const struct lu_env *env,
struct md_object *m,
const struct md_attr *at)
return m->mo_ops->moo_xattr_list(env, m, buf);
}
+static inline int mo_swap_layouts(const struct lu_env *env,
+ struct md_object *o1,
+ struct md_object *o2, __u64 flags)
+{
+ LASSERT(o1->mo_ops->moo_swap_layouts);
+ LASSERT(o2->mo_ops->moo_swap_layouts);
+ if (o1->mo_ops->moo_swap_layouts != o2->mo_ops->moo_swap_layouts)
+ return -EPERM;
+ return o1->mo_ops->moo_swap_layouts(env, o1, o2, flags);
+}
+
static inline int mo_open(const struct lu_env *env,
struct md_object *m,
int flags)
static inline int mo_close(const struct lu_env *env,
struct md_object *m,
- struct md_attr *ma)
+ struct md_attr *ma,
+ int mode)
{
LASSERT(m->mo_ops->moo_close);
- return m->mo_ops->moo_close(env, m, ma);
+ return m->mo_ops->moo_close(env, m, ma, mode);
}
static inline int mo_readpage(const struct lu_env *env,
return m->mo_ops->moo_readpage(env, m, rdpg);
}
-static inline int mo_object_create(const struct lu_env *env,
- struct md_object *m,
- const struct md_op_spec *spc,
- struct md_attr *at)
-{
- LASSERT(m->mo_ops->moo_object_create);
- return m->mo_ops->moo_object_create(env, m, spc, at);
-}
-
-static inline int mo_ref_add(const struct lu_env *env,
- struct md_object *m,
- const struct md_attr *ma)
-{
- LASSERT(m->mo_ops->moo_ref_add);
- return m->mo_ops->moo_ref_add(env, m, ma);
-}
-
-static inline int mo_ref_del(const struct lu_env *env,
- struct md_object *m,
- struct md_attr *ma)
-{
- LASSERT(m->mo_ops->moo_ref_del);
- return m->mo_ops->moo_ref_del(env, m, ma);
-}
-
static inline int mo_capa_get(const struct lu_env *env,
struct md_object *m,
struct lustre_capa *c,
return m->mo_ops->moo_object_sync(env, m);
}
+static inline int mo_object_lock(const struct lu_env *env,
+ struct md_object *m,
+ struct lustre_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ union ldlm_policy_data *policy)
+{
+ LASSERT(m->mo_ops->moo_object_lock);
+ return m->mo_ops->moo_object_lock(env, m, lh, einfo, policy);
+}
+
+static inline int mo_object_unlock(const struct lu_env *env,
+ struct md_object *m,
+ struct ldlm_enqueue_info *einfo,
+ union ldlm_policy_data *policy)
+{
+ LASSERT(m->mo_ops->moo_object_unlock);
+ return m->mo_ops->moo_object_unlock(env, m, einfo, policy);
+}
+
static inline int mdo_lookup(const struct lu_env *env,
struct md_object *p,
const struct lu_name *lname,
struct md_op_spec *spc,
struct md_attr *at)
{
- LASSERT(c->mo_dir_ops->mdo_create);
- return c->mo_dir_ops->mdo_create(env, p, lchild_name, c, spc, at);
+ LASSERT(p->mo_dir_ops->mdo_create);
+ return p->mo_dir_ops->mdo_create(env, p, lchild_name, c, spc, at);
}
static inline int mdo_create_data(const struct lu_env *env,
ma);
}
+static inline int mdo_migrate(const struct lu_env *env,
+ struct md_object *pobj,
+ struct md_object *sobj,
+ const struct lu_name *lname,
+ struct md_object *tobj,
+ struct md_attr *ma)
+{
+ LASSERT(pobj->mo_dir_ops->mdo_migrate);
+ return pobj->mo_dir_ops->mdo_migrate(env, pobj, sobj, lname, tobj, ma);
+}
+
static inline int mdo_is_subdir(const struct lu_env *env,
struct md_object *mo,
const struct lu_fid *fid,
}
static inline int mdo_unlink(const struct lu_env *env,
- struct md_object *p,
- struct md_object *c,
- const struct lu_name *lname,
- struct md_attr *ma)
+ struct md_object *p,
+ struct md_object *c,
+ const struct lu_name *lname,
+ struct md_attr *ma, int no_name)
{
- LASSERT(c->mo_dir_ops->mdo_unlink);
- return c->mo_dir_ops->mdo_unlink(env, p, c, lname, ma);
+ LASSERT(p->mo_dir_ops->mdo_unlink);
+ return p->mo_dir_ops->mdo_unlink(env, p, c, lname, ma, no_name);
}
-static inline int mdo_name_insert(const struct lu_env *env,
- struct md_object *p,
- const struct lu_name *lname,
- const struct lu_fid *f,
- const struct md_attr *ma)
-{
- LASSERT(p->mo_dir_ops->mdo_name_insert);
- return p->mo_dir_ops->mdo_name_insert(env, p, lname, f, ma);
-}
+/**
+ * Used in MDD/OUT layer for object lock rule
+ **/
+enum mdd_object_role {
+ MOR_SRC_PARENT,
+ MOR_SRC_CHILD,
+ MOR_TGT_PARENT,
+ MOR_TGT_CHILD,
+ MOR_TGT_ORPHAN
+};
-static inline int mdo_name_remove(const struct lu_env *env,
- struct md_object *p,
- const struct lu_name *lname,
- const struct md_attr *ma)
-{
- LASSERT(p->mo_dir_ops->mdo_name_remove);
- return p->mo_dir_ops->mdo_name_remove(env, p, lname, ma);
-}
+struct dt_device;
+
+int lustre_buf2som(void *buf, int rc, struct md_som_data *msd);
+int lustre_buf2hsm(void *buf, int rc, struct md_hsm *mh);
+void lustre_hsm2buf(void *buf, const struct md_hsm *mh);
-static inline int mdo_rename_tgt(const struct lu_env *env,
- struct md_object *p,
- struct md_object *t,
- const struct lu_fid *lf,
- const struct lu_name *lname,
- struct md_attr *ma)
+enum {
+ UCRED_INVALID = -1,
+ UCRED_INIT = 0,
+ UCRED_OLD = 1,
+ UCRED_NEW = 2,
+};
+
+struct lu_ucred {
+ __u32 uc_valid;
+ __u32 uc_o_uid;
+ __u32 uc_o_gid;
+ __u32 uc_o_fsuid;
+ __u32 uc_o_fsgid;
+ __u32 uc_uid;
+ __u32 uc_gid;
+ __u32 uc_fsuid;
+ __u32 uc_fsgid;
+ __u32 uc_suppgids[2];
+ cfs_cap_t uc_cap;
+ __u32 uc_umask;
+ struct group_info *uc_ginfo;
+ struct md_identity *uc_identity;
+ char uc_jobid[LUSTRE_JOBID_SIZE];
+};
+
+struct lu_ucred *lu_ucred(const struct lu_env *env);
+
+struct lu_ucred *lu_ucred_check(const struct lu_env *env);
+
+struct lu_ucred *lu_ucred_assert(const struct lu_env *env);
+
+int lu_ucred_global_init(void);
+
+void lu_ucred_global_fini(void);
+
+#define md_cap_t(x) (x)
+
+#define MD_CAP_TO_MASK(x) (1 << (x))
+
+#define md_cap_raised(c, flag) (md_cap_t(c) & MD_CAP_TO_MASK(flag))
+
+/* capable() is copied from linux kernel! */
+static inline int md_capable(struct lu_ucred *uc, cfs_cap_t cap)
{
- if (t) {
- LASSERT(t->mo_dir_ops->mdo_rename_tgt);
- return t->mo_dir_ops->mdo_rename_tgt(env, p, t, lf, lname, ma);
- } else {
- LASSERT(p->mo_dir_ops->mdo_rename_tgt);
- return p->mo_dir_ops->mdo_rename_tgt(env, p, t, lf, lname, ma);
- }
+ if (md_cap_raised(uc->uc_cap, cap))
+ return 1;
+ return 0;
}
/** @} md */
-
#endif /* _LINUX_MD_OBJECT_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff