* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* super-class definitions.
*/
#include <dt_object.h>
-#include <lvfs.h>
-
-/* LU-1051, temperary solution to reduce llog credits */
-#define DECLARE_LLOG_REWRITE 0
-#define DECLARE_LLOG_WRITE INT_MAX
struct md_device;
struct md_device_operations;
struct obd_export;
enum {
- UCRED_INVALID = -1,
- UCRED_INIT = 0,
- UCRED_OLD = 1,
- UCRED_NEW = 2
-};
-
-enum {
MD_CAPAINFO_MAX = 5
};
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_flags;
- __u32 mh_archive_number;
+ __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 {
- __u64 msd_ioepoch;
- __u64 msd_size;
- __u64 msd_blocks;
- __u64 msd_mountid;
+ __u32 msd_compat;
+ __u32 msd_incompat;
+ __u64 msd_ioepoch;
+ __u64 msd_size;
+ __u64 msd_blocks;
+ __u64 msd_mountid;
};
struct md_attr {
struct lustre_capa *ma_capa;
struct md_som_data *ma_som;
int ma_lmm_size;
- int ma_big_lmm_used:1;
int ma_lmv_size;
int ma_acl_size;
int ma_cookie_size;
int eadatalen;
} sp_ea;
} u;
- /** don't create lov objects or llog cookie - this replay */
- int no_create;
/** Create flag from client: such as MDS_OPEN_CREAT, and others. */
__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 */
- /** 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;
/** to create directory */
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);
struct lustre_capa *, int renewal);
int (*moo_object_sync)(const struct lu_env *, struct md_object *);
- int (*moo_path)(const struct lu_env *env, struct md_object *obj,
- char *path, int pathlen, __u64 *recno, int *linkno);
- int (*moo_file_lock)(const struct lu_env *env, struct md_object *obj,
- struct lov_mds_md *lmm, struct ldlm_extent *extent,
- struct lustre_handle *lockh);
- int (*moo_file_unlock)(const struct lu_env *env, struct md_object *obj,
- struct lov_mds_md *lmm,
- struct lustre_handle *lockh);
+
+ int (*moo_file_lock)(const struct lu_env *env, struct md_object *obj,
+ struct lov_mds_md *lmm, struct ldlm_extent *extent,
+ struct lustre_handle *lockh);
+ int (*moo_file_unlock)(const struct lu_env *env, struct md_object *obj,
+ struct lov_mds_md *lmm,
+ struct lustre_handle *lockh);
+ int (*moo_object_lock)(const struct lu_env *env, struct md_object *obj,
+ struct lustre_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ void *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);
/** This method is used to compare a requested layout to an existing
* layout (struct lov_mds_md_v1/3 vs struct lov_mds_md_v1/3) */
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 obd_statfs *sfs);
};
/**
- * md-server site.
+ * seq-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;
+struct seq_server_site {
+ struct lu_site *ss_lu;
+ /**
+ * mds number of this site.
+ */
+ mdsno_t ss_node_id;
+ /**
+ * Fid location database
+ */
+ struct lu_server_fld *ss_server_fld;
+ struct lu_client_fld *ss_client_fld;
+
+ /**
+ * Server Seq Manager
+ */
+ struct lu_server_seq *ss_server_seq;
+
+ /**
+ * Controller Seq Manager
+ */
+ struct lu_server_seq *ss_control_seq;
+ struct obd_export *ss_control_exp;
+
+ /**
+ * Client Seq Manager
+ */
+ struct lu_client_seq *ss_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);
-}
-
static inline struct md_device *lu2md_dev(const struct lu_device *d)
{
LASSERT(IS_ERR(d) || lu_device_is_md(d));
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 s->ld_md_site;
-}
-
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 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)
return m->mo_ops->moo_capa_get(env, m, c, renewal);
}
-static inline int mo_path(const struct lu_env *env, struct md_object *m,
- char *path, int pathlen, __u64 *recno, int *linkno)
-{
- if (m->mo_ops->moo_path == NULL)
- return -ENOSYS;
- return m->mo_ops->moo_path(env, m, path, pathlen, recno, linkno);
-}
-
static inline int mo_object_sync(const struct lu_env *env, struct md_object *m)
{
LASSERT(m->mo_ops->moo_object_sync);
return m->mo_ops->moo_file_unlock(env, m, lmm, lockh);
}
+static inline int mo_object_lock(const struct lu_env *env,
+ struct md_object *m,
+ struct lustre_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ void *policy)
+{
+ LASSERT(m->mo_ops->moo_object_lock);
+ return m->mo_ops->moo_object_lock(env, m, lh, einfo, policy);
+}
+
static inline int mdo_lookup(const struct lu_env *env,
struct md_object *p,
const struct lu_name *lname,
}
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_lum_lmm_cmp(const struct lu_env *env,
}
}
+/**
+ * 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
+};
+
struct dt_device;
/**
* Structure to hold object information. This is used to create object
cfs_list_t llod_linkage;
};
-struct md_object *llo_store_resolve(const struct lu_env *env,
- struct md_device *md,
- struct dt_device *dt,
- const char *path,
- struct lu_fid *fid);
-
-struct md_object *llo_store_open(const struct lu_env *env,
- struct md_device *md,
- struct dt_device *dt,
- const char *dirname,
- const char *objname,
- struct lu_fid *fid);
-
-struct md_object *llo_store_create_index(const struct lu_env *env,
- struct md_device *md,
- struct dt_device *dt,
- const char *dirname,
- const char *objname,
- const struct lu_fid *fid,
- const struct dt_index_features *feat);
-
-struct md_object *llo_store_create(const struct lu_env *env,
- struct md_device *md,
- struct dt_device *dt,
- const char *dirname,
- const char *objname,
- const struct lu_fid *fid);
-
-void llo_local_obj_register(struct lu_local_obj_desc *);
-void llo_local_obj_unregister(struct lu_local_obj_desc *);
-
-int llo_local_objects_setup(const struct lu_env *env,
- struct md_device * md,
- struct dt_device * dt);
+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);
+
+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;
+ cfs_group_info_t *uc_ginfo;
+ struct md_identity *uc_identity;
+};
+
+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 (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