Viewing: mdd_internal.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* Author: Wang Di <wangdi@clusterfs.com>
*/
#ifndef _MDD_INTERNAL_H
#define _MDD_INTERNAL_H
#include <lustre_acl.h>
#include <lustre_compat.h>
#include <md_object.h>
#include <dt_object.h>
#include <lustre_lfsck.h>
#include <lustre_fid.h>
#include <lprocfs_status.h>
#include <lustre_log.h>
#include <lustre_linkea.h>
/* ChangeLog params for automatic purge mechanism */
/* max time allowed for a user to stay idle in seconds */
#define CHLOG_MAX_IDLE_TIME 2592000 /* = 30 days */
/* max gap allowed for a user to stay idle in number of ChangeLog records
* this is an evaluation, assuming that chunk-size is LLOG_MIN_CHUNK_SIZE, of
* the indexes gap for half full changelogs
*/
#define CHLOG_MAX_IDLE_INDEXES (((LLOG_MIN_CHUNK_SIZE - \
offsetof(struct llog_log_hdr, \
llh_bitmap[0]) - \
sizeof(struct llog_rec_tail)) * 4) * \
((LLOG_MIN_CHUNK_SIZE - \
offsetof(struct llog_log_hdr, \
llh_bitmap[0]) - \
sizeof(struct llog_rec_tail)) * 8))
/* min time in seconds between two gc thread runs if none already started */
#define CHLOG_MIN_GC_INTERVAL 3600
/* minimum number of free ChangeLog catalog entries (ie, between cur and
* last indexes) before starting garbage collect
*/
#define CHLOG_MIN_FREE_CAT_ENTRIES 2
/* Changelog flags */
/** changelog is recording */
#define CLM_ON 0x00001
/** internal error prevented changelogs from starting */
#define CLM_ERR 0x00002
/* Marker flags */
/** changelogs turned on */
#define CLM_START 0x10000
/** changelogs turned off */
#define CLM_FINI 0x20000
/** some changelog records purged */
#define CLM_PURGE 0x40000
/** changelog cleanup done, to prevent double cleanup */
#define CLM_CLEANUP_DONE 0x80000
/** changelog has been initialized */
#define CLM_INIT_DONE 0x100000
#define LLOG_CHANGELOG_HDR_SZ (sizeof(struct llog_changelog_rec) - \
sizeof(struct changelog_rec))
/* mc_gc_task values */
/** no GC thread to be started **/
#define MDD_CHLG_GC_NONE NULL
/** a GC thread need to be started **/
#define MDD_CHLG_GC_NEED (struct task_struct *)(-1)
/** a GC thread will be started now **/
#define MDD_CHLG_GC_START (struct task_struct *)(-2)
/** else the started task_struct address when running **/
struct mdd_changelog {
spinlock_t mc_lock; /* for index */
int mc_flags;
__u32 mc_proc_mask; /* per-server mask set via parameters */
__u32 mc_current_mask; /* combined global+users */
__u32 mc_mintime; /* the oldest changelog user time */
__u64 mc_minrec; /* last known minimal used index */
__u64 mc_index;
ktime_t mc_starttime;
spinlock_t mc_user_lock;
int mc_lastuser;
int mc_users; /* registered users number */
struct task_struct *mc_gc_task;
time64_t mc_gc_time; /* last GC check or run time */
unsigned int mc_deniednext; /* interval for recording denied
* accesses
*/
unsigned char mc_enable_shard_pfid; /* master or shard pFID
* for striped dirs
*/
};
static inline __u64 cl_time(void)
{
struct timespec64 time;
ktime_get_real_ts64(&time);
return (((__u64)time.tv_sec) << 30) + time.tv_nsec;
}
/** Objects in .lustre dir */
struct mdd_dot_lustre_objs {
struct mdd_object *mdd_obf;
struct mdd_object *mdd_lpf;
};
struct mdd_generic_thread {
struct completion mgt_started;
struct completion mgt_finished;
void *mgt_data;
bool mgt_abort;
bool mgt_init;
};
struct mdd_device {
struct md_device mdd_md_dev;
struct obd_export *mdd_child_exp;
struct dt_device *mdd_child;
struct dt_device *mdd_bottom;
struct lu_fid mdd_root_fid; /* /ROOT */
struct lu_fid mdd_local_root_fid;
struct dt_device_param mdd_dt_conf;
struct dt_object *mdd_orphans; /* PENDING directory */
struct mdd_changelog mdd_cl;
unsigned int mdd_changelog_gc;
/* emrg GC is in progress */
bool mdd_changelog_emrg_gc;
/* don't use GC by free space */
bool mdd_changelog_free_space_gc;
time64_t mdd_changelog_max_idle_time;
unsigned long mdd_changelog_max_idle_indexes;
time64_t mdd_changelog_min_gc_interval;
unsigned int mdd_changelog_min_free_cat_entries;
time64_t mdd_atime_diff;
struct mdd_object *mdd_dot_lustre;
struct mdd_dot_lustre_objs mdd_dot_lustre_objs;
unsigned int mdd_sync_permission;
int mdd_connects;
int mdd_append_stripe_count;
char mdd_append_pool[LOV_MAXPOOLNAME + 1];
struct local_oid_storage *mdd_los;
struct mdd_generic_thread mdd_orphan_cleanup_thread;
struct kobject mdd_kobj;
struct kobj_type mdd_ktype;
struct completion mdd_kobj_unregister;
/* to serialize init/fini vs access */
struct mutex mdd_changelog_mutex;
};
enum mod_flags {
/* The dir object has been unlinked */
DEAD_OBJ = BIT(0),
ORPHAN_OBJ = BIT(1),
VOLATILE_OBJ = BIT(4),
};
struct mdd_object {
struct md_object mod_obj;
struct lu_fid mod_striped_pfid; /* master dir parent FID, in
* case this is a striped dir
*/
/* open count */
u32 mod_count;
u32 mod_valid;
ktime_t mod_cltime;
s64 mod_atime_set;
unsigned long mod_flags;
struct list_head mod_users; /**< unique user opens */
};
#define MDI_KEEP_KEY 0x01
struct mdd_thread_info {
struct lu_fid mdi_fid;
struct lu_fid mdi_fid2; /* used for be & cpu converting */
/* only be used by MDD interfaces, can be passed into local MDD APIs */
struct lu_attr mdi_pattr;
struct lu_attr mdi_cattr;
struct lu_attr mdi_tpattr;
struct lu_attr mdi_tattr;
/** used to set ctime/mtime */
struct lu_attr mdi_la_for_fix;
/* Only used in mdd_object_start */
struct lu_attr mdi_la_for_start;
/* mdi_ent/mdi_key must be together so mdi_ent::lde_name is mdi_key */
struct lu_dirent mdi_ent;
char mdi_key[NAME_MAX + 16];
int mdi_flags;
char mdi_name[NAME_MAX + 1];
struct lu_buf mdi_buf[4];
/* persistent buffers, must be handled with lu_buf_alloc/free */
struct lu_buf mdi_big_buf;
struct lu_buf mdi_chlg_buf;
struct lu_buf mdi_link_buf; /* buf for link ea */
struct lu_buf mdi_xattr_buf;
struct obdo mdi_oa;
struct dt_allocation_hint mdi_hint;
struct dt_object_format mdi_dof;
struct linkea_data mdi_link_data;
struct md_op_spec mdi_spec;
struct dt_insert_rec mdi_dt_rec;
struct lu_seq_range mdi_range;
struct md_layout_change mdi_mlc;
int mdi_chlog_declared;
};
int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
struct lu_attr *la);
int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
struct md_attr *ma);
int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
const struct md_attr *ma);
int mdd_attr_set_internal(const struct lu_env *env,
struct mdd_object *obj,
const struct lu_attr *attr,
struct thandle *handle,
int needacl);
int mdd_update_time(const struct lu_env *env, struct mdd_object *obj,
const struct lu_attr *oattr, struct lu_attr *attr,
struct thandle *handle);
int mdd_create(const struct lu_env *env, struct md_object *pobj,
const struct lu_name *lname, struct md_object *child,
struct md_op_spec *spec, struct md_attr *ma);
int mdd_create_object_internal(const struct lu_env *env, struct mdd_object *p,
struct mdd_object *c, struct lu_attr *attr,
struct thandle *handle,
const struct md_op_spec *spec,
struct dt_allocation_hint *hint);
/* mdd_lock.c */
void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
enum dt_object_role role);
void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
enum dt_object_role role);
void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
int mdd_write_locked(const struct lu_env *env, struct mdd_object *obj);
/* mdd_dir.c */
int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
const struct lu_attr *pattr, struct mdd_object *cobj,
bool check_perm);
int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
const struct lu_attr *tpattr, struct mdd_object *tobj,
const struct lu_attr *tattr, const struct lu_attr *cattr,
int check_perm, int check_empty);
int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
const struct lu_attr *pattr,
struct mdd_object *cobj,
const struct lu_attr *cattr);
int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
struct md_attr *ma, struct mdd_object *pobj,
const struct lu_name *lname, struct thandle *th);
int mdd_is_root(struct mdd_device *mdd, const struct lu_fid *fid);
int mdd_lookup(const struct lu_env *env, struct md_object *pobj,
const struct lu_name *lname, struct lu_fid *fid,
struct md_op_spec *spec);
int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
struct linkea_data *ldata, struct thandle *handle);
int mdd_links_read(const struct lu_env *env,
struct mdd_object *mdd_obj,
struct linkea_data *ldata);
struct lu_buf *mdd_links_get(const struct lu_env *env,
struct mdd_object *mdd_obj);
int mdd_links_rename(const struct lu_env *env,
struct mdd_object *mdd_obj,
const struct lu_fid *oldpfid,
const struct lu_name *oldlname,
const struct lu_fid *newpfid,
const struct lu_name *newlname,
struct thandle *handle,
struct linkea_data *ldata,
int first, int check);
int mdd_dir_layout_shrink(const struct lu_env *env,
struct md_object *md_obj,
struct md_layout_change *mlc);
int mdd_dir_layout_split(const struct lu_env *env, struct md_object *o,
struct md_layout_change *mlc);
int mdd_changelog_write_rec(const struct lu_env *env,
struct llog_handle *loghandle,
struct llog_rec_hdr *rec,
struct llog_cookie *cookie,
int idx, struct thandle *th);
struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
#define MDD_ENV_VAR(env, var) (&mdd_env_info(env)->mdi_##var)
struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
const void *area, ssize_t len);
int mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
int mdd_orphan_insert(const struct lu_env *env, struct mdd_object *obj,
struct thandle *thandle);
int mdd_orphan_delete(const struct lu_env *env, struct mdd_object *obj,
struct thandle *thandle);
int mdd_orphan_index_init(const struct lu_env *env, struct mdd_device *mdd);
void mdd_orphan_index_fini(const struct lu_env *env, struct mdd_device *mdd);
int mdd_orphan_declare_insert(const struct lu_env *env, struct mdd_object *obj,
umode_t mode, struct thandle *thandle);
int mdd_orphan_declare_delete(const struct lu_env *env, struct mdd_object *obj,
struct thandle *thandle);
int mdd_dir_is_empty(const struct lu_env *env, struct mdd_object *dir);
/* mdd_lproc.c */
int mdd_procfs_init(struct mdd_device *mdd, const char *name);
void mdd_procfs_fini(struct mdd_device *mdd);
/* mdd_object.c */
extern struct kmem_cache *mdd_object_kmem;
extern const struct md_dir_operations mdd_dir_ops;
extern const struct md_object_operations mdd_obj_ops;
int mdd_readlink(const struct lu_env *env, struct md_object *obj,
struct lu_buf *buf);
extern struct lu_context_key mdd_thread_key;
extern const struct lu_device_operations mdd_lu_ops;
struct mdd_object *mdd_object_find(const struct lu_env *env,
struct mdd_device *d,
const struct lu_fid *f);
int mdd_readpage(const struct lu_env *env, struct md_object *obj,
const struct lu_rdpg *rdpg);
int mdd_declare_changelog_store(const struct lu_env *env,
struct mdd_device *mdd,
enum changelog_rec_type type,
const struct lu_name *tname,
const struct lu_name *sname,
struct thandle *handle);
void mdd_changelog_rec_ext_jobid(struct changelog_rec *rec, const char *jobid);
void mdd_changelog_rec_ext_extra_flags(struct changelog_rec *rec, __u64 eflags);
void mdd_changelog_rec_extra_uidgid(struct changelog_rec *rec,
__u64 uid, __u64 gid);
void mdd_changelog_rec_extra_nid(struct changelog_rec *rec,
const struct lnet_nid *nid);
void mdd_changelog_rec_extra_omode(struct changelog_rec *rec, u32 flags);
void mdd_changelog_rec_extra_xattr(struct changelog_rec *rec,
const char *xattr_name);
int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
struct llog_changelog_rec *rec, struct thandle *th);
int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
enum changelog_rec_type type,
enum changelog_rec_flags clf_flags,
struct mdd_object *mdd_obj,
struct thandle *handle,
const struct lu_fid *pfid);
int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
enum changelog_rec_type type,
enum changelog_rec_flags clf_flags,
struct mdd_object *target,
struct mdd_object *parent,
const struct lu_attr *pattr,
const struct lu_fid *sfid,
struct mdd_object *src_parent,
const struct lu_attr *src_pattr,
const struct lu_name *tname,
const struct lu_name *sname,
struct thandle *handle);
int mdd_invalidate(const struct lu_env *env, struct md_object *obj);
int mdd_declare_create_object_internal(const struct lu_env *env,
struct mdd_object *p,
struct mdd_object *c,
struct lu_attr *attr,
struct thandle *handle,
const struct md_op_spec *spec,
struct dt_allocation_hint *hint);
int mdd_stripe_get(const struct lu_env *env, struct mdd_object *obj,
struct lu_buf *lmm_buf, const char *name);
int mdd_changelog_data_store_xattr(const struct lu_env *env,
struct mdd_device *mdd,
enum changelog_rec_type type,
enum changelog_rec_flags clf_flags,
struct mdd_object *mdd_obj,
const char *xattr_name,
struct thandle *handle);
int mdd_dom_fixup(const struct lu_env *env, struct mdd_device *mdd,
struct mdd_object *mo, struct mdd_object *vo);
int mdd_lmm_oi(struct lov_mds_md *lmm, struct ost_id *oi, bool set);
static inline int mdd_get_lmm_oi(struct lov_mds_md *lmm, struct ost_id *oi)
{
return mdd_lmm_oi(lmm, oi, false);
}
static inline int mdd_set_lmm_oi(struct lov_mds_md *lmm, struct ost_id *oi)
{
return mdd_lmm_oi(lmm, oi, true);
}
/* mdd_trans.c */
void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
struct mdd_object *child, const struct lu_attr *attr,
const struct md_op_spec *spec,
struct dt_allocation_hint *hint);
static inline void mdd_object_get(struct mdd_object *o)
{
lu_object_get(&o->mod_obj.mo_lu);
}
static inline void mdd_object_put(const struct lu_env *env,
struct mdd_object *o)
{
lu_object_put(env, &o->mod_obj.mo_lu);
}
struct thandle *mdd_trans_create(const struct lu_env *env,
struct mdd_device *mdd);
int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
struct thandle *th);
int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
int rc, struct thandle *handle);
/* mdd_device.c */
struct lu_object *mdd_object_alloc(const struct lu_env *env,
const struct lu_object_header *hdr,
struct lu_device *d);
int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
const struct lu_fid *pfid, const char *name,
__u32 mode, struct lu_fid *fid);
int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
struct thandle *handle);
int mdd_acl_set(const struct lu_env *env, struct mdd_object *obj,
struct lu_attr *attr, const struct lu_buf *buf, int fl);
int __mdd_fix_mode_acl(const struct lu_env *env, struct lu_buf *buf,
__u32 *mode);
int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
const struct lu_attr *la, unsigned int may_mask,
int role);
int mdd_permission(const struct lu_env *env, struct md_object *pobj,
struct md_object *cobj, struct md_attr *ma,
unsigned int may_mask);
int mdd_generic_thread_start(struct mdd_generic_thread *thread,
int (*func)(void *), void *data, char *name);
void mdd_generic_thread_stop(struct mdd_generic_thread *thread);
int mdd_changelog_user_purge(const struct lu_env *env, struct mdd_device *mdd,
__u32 id);
char *mdd_chlg_username(struct llog_changelog_user_rec2 *rec, char *buf,
size_t len);
__u32 mdd_chlg_usermask(struct llog_changelog_user_rec2 *rec);
int mdd_changelog_recalc_mask(const struct lu_env *env, struct mdd_device *mdd);
/* mdd_prepare.c */
int mdd_compat_fixes(const struct lu_env *env, struct mdd_device *mdd);
/* acl.c */
extern int lustre_posix_acl_permission(struct lu_ucred *mu,
const struct lu_attr *la,
unsigned int may_mask,
struct posix_acl_xattr_entry *entry,
int count);
extern int lustre_posix_acl_chmod_masq(struct posix_acl_xattr_entry *entry,
u32 mode, int count);
extern int lustre_posix_acl_create_masq(struct posix_acl_xattr_entry *entry,
u32 *pmode, int count);
extern int lustre_posix_acl_equiv_mode(struct posix_acl_xattr_entry *entry,
mode_t *mode_p, int count);
/* mdd_mask.c */
int mdd_changelog_user_lookup(const struct lu_env *env,
struct mdd_device *mdd,
const struct changelog_filter *req,
struct changelog_filter *reply);
/* inline functions */
static inline int lu_device_is_mdd(struct lu_device *d)
{
return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
}
static inline struct mdd_device *lu2mdd_dev(struct lu_device *d)
{
LASSERT(lu_device_is_mdd(d));
return container_of_safe(d, struct mdd_device, mdd_md_dev.md_lu_dev);
}
static inline struct lu_device *mdd2lu_dev(struct mdd_device *mdd)
{
return &mdd->mdd_md_dev.md_lu_dev;
}
static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
{
LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
return container_of_safe(o, struct mdd_object,
mod_obj.mo_lu);
}
static inline struct mdd_device *mdo2mdd(struct md_object *mdo)
{
return lu2mdd_dev(mdo->mo_lu.lo_dev);
}
static inline struct mdd_object *md2mdd_obj(struct md_object *mdo)
{
return container_of_safe(mdo, struct mdd_object, mod_obj);
}
static inline const
struct dt_device_operations *mdd_child_ops(struct mdd_device *mdd)
{
return mdd->mdd_child->dd_ops;
}
static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
{
return &obj->mod_obj.mo_lu;
}
static inline struct dt_object *mdd_object_child(struct mdd_object *obj)
{
return container_of(lu_object_next(mdd2lu_obj(obj)),
struct dt_object, do_lu);
}
static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
{
return mdd->mdd_md_dev.md_lu_dev.ld_obd;
}
static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
{
return mdo2mdd(&obj->mod_obj);
}
static inline umode_t mdd_object_type(const struct mdd_object *mdd_obj)
{
return lu_object_attr(&mdd_obj->mod_obj.mo_lu);
}
static inline int mdd_is_dead_obj(struct mdd_object *mdd_obj)
{
return mdd_obj && mdd_obj->mod_flags & DEAD_OBJ;
}
static inline bool mdd_is_volatile_obj(struct mdd_object *mdd_obj)
{
return mdd_obj->mod_flags & VOLATILE_OBJ;
}
static inline bool mdd_is_orphan_obj(struct mdd_object *mdd_obj)
{
return mdd_obj->mod_flags & ORPHAN_OBJ;
}
static inline int mdd_object_exists(struct mdd_object *mdd_obj)
{
return lu_object_exists(mdd2lu_obj(mdd_obj));
}
static inline int mdd_object_remote(struct mdd_object *mdd_obj)
{
return lu_object_remote(mdd2lu_obj(mdd_obj));
}
static inline const struct lu_fid *mdd_object_fid(struct mdd_object *mdd_obj)
{
return lu_object_fid(mdd2lu_obj(mdd_obj));
}
static inline struct seq_server_site *mdd_seq_site(struct mdd_device *mdd)
{
return mdd2lu_dev(mdd)->ld_site->ld_seq_site;
}
static inline const char *mdd_obj_dev_name(const struct mdd_object *mdd_obj)
{
return lu_dev_name(mdd_obj->mod_obj.mo_lu.lo_dev);
}
#define MAX_ATIME_DIFF 60
static inline int mdd_permission_internal(const struct lu_env *env,
struct mdd_object *obj,
const struct lu_attr *la,
unsigned int may_mask)
{
return __mdd_permission_internal(env, obj, la, may_mask, -1);
}
static inline int mdd_permission_internal_locked(const struct lu_env *env,
struct mdd_object *obj,
const struct lu_attr *la,
unsigned int may_mask,
enum dt_object_role role)
{
return __mdd_permission_internal(env, obj, la, may_mask, role);
}
/* mdd inline func for calling osd_dt_object ops */
static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
struct lu_attr *la)
{
struct dt_object *next = mdd_object_child(obj);
return dt_attr_get(env, next, la);
}
static inline int mdo_declare_attr_set(const struct lu_env *env,
struct mdd_object *obj,
const struct lu_attr *la,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
return dt_declare_attr_set(env, next, la, handle);
}
static inline int mdo_attr_set(const struct lu_env *env,
struct mdd_object *obj,
const struct lu_attr *la,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
if (!mdd_object_exists(obj))
return -ENOENT;
return dt_attr_set(env, next, la, handle);
}
static
inline int mdo_xattr_get(const struct lu_env *env, struct mdd_object *obj,
struct lu_buf *buf, const char *name)
{
struct dt_object *next = mdd_object_child(obj);
return dt_xattr_get(env, next, buf, name);
}
static inline int mdo_declare_xattr_set(const struct lu_env *env,
struct mdd_object *obj,
const struct lu_buf *buf,
const char *name, int fl,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
int rc;
rc = dt_declare_xattr_set(env, next, NULL, buf, name, fl, handle);
if (rc >= 0 &&
(strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT) == 0 ||
strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD) == 0)) {
struct lu_attr la = { 0 };
la.la_valid = LA_FLAGS;
la.la_flags = LUSTRE_ENCRYPT_FL;
rc = dt_declare_attr_set(env, next, &la, handle);
}
return rc;
}
static inline int mdo_xattr_set(const struct lu_env *env,
struct mdd_object *obj,
const struct lu_buf *buf, const char *name,
int fl, struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
int rc = 0;
if (!mdd_object_exists(obj))
return -ENOENT;
/* If we are about to set the LL_XATTR_NAME_ENCRYPTION_CONTEXT
* xattr, it means the file/dir is encrypted. In that case we want
* to set the LUSTRE_ENCRYPT_FL flag as well: it will be stored
* into the LMA, making it more efficient to recognise we are
* dealing with an encrypted file/dir, as LMA info is cached upon
* object init.
* However, marking a dir as encrypted is only possible if it is
* being created or migrated (LU_XATTR_CREATE flag not set), or
* if it is empty.
*/
if ((strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT) == 0 ||
strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD) == 0) &&
(!S_ISDIR(mdd_object_type(obj)) ||
!(fl & LU_XATTR_CREATE) ||
(rc = mdd_dir_is_empty(env, obj)) == 0)) {
struct lu_attr la = { 0 };
/* try to fetch existing attrs, to not lose them */
(void)dt_attr_get(env, next, &la);
if (la.la_valid & LA_FLAGS)
la.la_flags |= LUSTRE_ENCRYPT_FL;
else
la.la_flags = LUSTRE_ENCRYPT_FL;
la.la_valid = LA_FLAGS;
/* if this is an old client using the old enc xattr name,
* switch to the new name for consistency
*/
if (strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD) == 0)
name = LL_XATTR_NAME_ENCRYPTION_CONTEXT;
rc = dt_attr_set(env, next, &la, handle);
}
if (rc >= 0)
rc = dt_xattr_set(env, next, buf, name, fl, handle);
return rc;
}
static inline int mdo_declare_xattr_del(const struct lu_env *env,
struct mdd_object *obj,
const char *name,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
return dt_declare_xattr_del(env, next, name, handle);
}
static inline int mdo_xattr_del(const struct lu_env *env,
struct mdd_object *obj, const char *name,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
if (!mdd_object_exists(obj))
return -ENOENT;
return dt_xattr_del(env, next, name, handle);
}
static inline int
mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
struct lu_buf *buf)
{
struct dt_object *next = mdd_object_child(obj);
if (!mdd_object_exists(obj))
return -ENOENT;
return dt_xattr_list(env, next, buf);
}
static inline int
mdo_invalidate(const struct lu_env *env, struct mdd_object *obj)
{
return dt_invalidate(env, mdd_object_child(obj));
}
static inline int
mdo_declare_layout_change(const struct lu_env *env, struct mdd_object *obj,
struct md_layout_change *mlc, struct thandle *handle)
{
return dt_declare_layout_change(env, mdd_object_child(obj),
mlc, handle);
}
static inline int
mdo_layout_change(const struct lu_env *env, struct mdd_object *obj,
struct md_layout_change *mlc, struct thandle *handle)
{
return dt_layout_change(env, mdd_object_child(obj), mlc, handle);
}
static inline int
mdo_layout_check(const struct lu_env *env, struct mdd_object *obj,
struct md_layout_change *mlc)
{
return dt_layout_check(env, mdd_object_child(obj), mlc);
}
static inline
int mdo_declare_index_insert(const struct lu_env *env, struct mdd_object *obj,
const struct lu_fid *fid, __u32 type,
const char *name, struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
int rc;
/* if the object doesn't exist yet, then it's supposed to be created
* and declaration of the creation should be enough to insert ./..
*/
rc = -ENOTDIR;
if (dt_try_as_dir(env, next, false)) {
struct dt_insert_rec *rec = &mdd_env_info(env)->mdi_dt_rec;
rec->rec_fid = fid;
rec->rec_type = type;
rc = dt_declare_insert(env, next, (const struct dt_rec *)rec,
(const struct dt_key *)name, handle);
}
return rc;
}
static inline
int mdo_declare_index_delete(const struct lu_env *env, struct mdd_object *obj,
const char *name, struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
if (!dt_try_as_dir(env, next, true))
return -ENOTDIR;
return dt_declare_delete(env, next, (const struct dt_key *)name,
handle);
}
static inline int mdo_declare_ref_add(const struct lu_env *env,
struct mdd_object *obj,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
return dt_declare_ref_add(env, next, handle);
}
static inline int mdo_ref_add(const struct lu_env *env, struct mdd_object *obj,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
if (!mdd_object_exists(obj))
return -ENOENT;
return dt_ref_add(env, next, handle);
}
static inline int mdo_declare_ref_del(const struct lu_env *env,
struct mdd_object *obj,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
return dt_declare_ref_del(env, next, handle);
}
static inline int mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
if (!mdd_object_exists(obj))
return -ENOENT;
return dt_ref_del(env, next, handle);
}
static inline int
mdo_declare_create_object(const struct lu_env *env, struct mdd_object *obj,
struct lu_attr *attr, struct dt_allocation_hint *hint,
struct dt_object_format *dof, struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
return dt_declare_create(env, next, attr, hint, dof, handle);
}
static inline int
mdo_create_object(const struct lu_env *env, struct mdd_object *obj,
struct lu_attr *attr, struct dt_allocation_hint *hint,
struct dt_object_format *dof, struct thandle *handle)
{
struct dt_object *next = mdd_object_child(obj);
return dt_create(env, next, attr, hint, dof, handle);
}
static inline
int mdo_declare_destroy(const struct lu_env *env, struct mdd_object *o,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(o);
return dt_declare_destroy(env, next, handle);
}
static inline
int mdo_destroy(const struct lu_env *env, struct mdd_object *o,
struct thandle *handle)
{
struct dt_object *next = mdd_object_child(o);
return dt_destroy(env, next, handle);
}
static inline bool mdd_changelog_enabled(const struct lu_env *env,
struct mdd_device *mdd,
enum changelog_rec_type type)
{
const struct lu_ucred *uc;
if ((mdd->mdd_cl.mc_flags & CLM_ON) &&
(mdd->mdd_cl.mc_current_mask & BIT(type))) {
uc = lu_ucred_check(env);
return uc != NULL ? uc->uc_enable_audit : true;
} else {
return false;
}
}
static inline bool mdd_changelog_is_too_idle(struct mdd_device *mdd,
__u64 cl_rec, __u32 cl_time)
{
__u64 idle_indexes = mdd->mdd_cl.mc_index - cl_rec;
__u32 idle_time = (__u32)ktime_get_real_seconds() - cl_time;
return (idle_indexes > mdd->mdd_changelog_max_idle_indexes ||
idle_time > mdd->mdd_changelog_max_idle_time ||
idle_time * idle_indexes > (24 * 3600ULL << 32));
}
bool mdd_changelog_is_space_safe(const struct lu_env *env,
struct mdd_device *mdd,
struct llog_handle *lgh,
bool estimate);
#define MAX_TRANS_RETRIED 20
static inline int
mdd_write_lock_two_objects(const struct lu_env *env,
struct mdd_object *obj1,
struct mdd_object *obj2)
{
int order;
/* there shouldn't be callers with obj1 == NULL */
LASSERT(obj1 != NULL);
if (!obj2)
goto out_lock1;
order = lu_fid_cmp(mdd_object_fid(obj1), mdd_object_fid(obj2));
if (unlikely(order == 0))
return -EPERM;
if (order > 0) {
mdd_write_lock(env, obj1, DT_TGT_CHILD);
mdd_write_lock(env, obj2, DT_TGT_CHILD);
} else {
mdd_write_lock(env, obj2, DT_TGT_CHILD);
out_lock1:
mdd_write_lock(env, obj1, DT_TGT_CHILD);
}
return 0;
}
static inline void
mdd_write_unlock_two_objects(const struct lu_env *env,
struct mdd_object *obj1,
struct mdd_object *obj2)
{
mdd_write_unlock(env, obj1);
if (obj2)
mdd_write_unlock(env, obj2);
}
#endif
