Viewing: mdc_internal.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2003, 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/
*/
#ifndef _MDC_INTERNAL_H
#define _MDC_INTERNAL_H
#include <lustre_mdc.h>
int mdc_tunables_init(struct obd_device *obd);
void mdc_pack_body(struct req_capsule *pill, const struct lu_fid *fid,
u64 valid, size_t ea_size, u32 suppgid, u32 flags,
u32 projid);
void mdc_swap_layouts_pack(struct req_capsule *pill,
struct md_op_data *op_data);
void mdc_readdir_pack(struct req_capsule *pill, __u64 pgoff, size_t size,
const struct lu_fid *fid);
void mdc_getattr_pack(struct req_capsule *pill, __u64 valid, __u32 flags,
struct md_op_data *data, size_t ea_size);
void mdc_setattr_pack(struct req_capsule *pill, struct md_op_data *op_data,
void *ea, size_t ealen);
void mdc_create_pack(struct req_capsule *pill, struct md_op_data *op_data,
const void *data, size_t datalen, umode_t mode,
uid_t uid, gid_t gid, kernel_cap_t cap_effective, u64 rdev,
struct sptlrpc_sepol *sepol);
void mdc_open_pack(struct req_capsule *pill, struct md_op_data *op_data,
umode_t mode, __u64 rdev, __u64 flags, const void *lmm,
size_t lmmlen, struct sptlrpc_sepol *sepol);
void mdc_file_secctx_pack(struct req_capsule *pill,
const char *secctx_name,
const void *secctx, size_t secctx_size);
void mdc_file_encctx_pack(struct req_capsule *pill,
const void *encctx, size_t encctx_size);
void mdc_file_sepol_pack(struct req_capsule *pill, struct sptlrpc_sepol *p);
void mdc_unlink_pack(struct req_capsule *pill, struct md_op_data *op_data,
struct sptlrpc_sepol *sepol);
void mdc_link_pack(struct req_capsule *pill, struct md_op_data *op_data,
struct sptlrpc_sepol *sepol);
void mdc_rename_pack(struct req_capsule *pill, struct md_op_data *op_data,
const char *old, size_t oldlen,
const char *new, size_t newlen,
struct sptlrpc_sepol *sepol);
void mdc_migrate_pack(struct req_capsule *pill, struct md_op_data *op_data,
const char *name, size_t namelen);
void mdc_close_pack(struct req_capsule *pill, struct md_op_data *op_data);
/* mdc/mdc_locks.c */
int mdc_set_lock_data(struct obd_export *exp,
const struct lustre_handle *lockh,
void *data, enum mds_ibits_locks *bits);
int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
int mdc_intent_lock(struct obd_export *exp,
struct md_op_data *op_data,
struct lookup_intent *it,
struct ptlrpc_request **reqp,
ldlm_blocking_callback cb_blocking,
__u64 extra_lock_flags);
int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
const union ldlm_policy_data *policy,
struct md_op_data *op_data,
struct lustre_handle *lockh, __u64 extra_lock_flags);
int mdc_enqueue_async(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
obd_enqueue_update_f upcall, struct md_op_data *op_data,
const union ldlm_policy_data *policy, __u64 lock_flags);
int mdc_resource_cancel_unused_res(struct obd_export *exp,
struct ldlm_res_id *res_id,
struct list_head *cancels,
enum ldlm_mode mode, __u64 bits);
int mdc_resource_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
struct list_head *cancels, enum ldlm_mode mode,
__u64 bits);
/* mdc/mdc_request.c */
int mdc_fid_alloc(const struct lu_env *env, struct obd_export *exp,
struct lu_fid *fid, struct md_op_data *op_data);
int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg);
void mdc_llog_finish(struct obd_device *obd);
struct obd_client_handle;
int mdc_set_open_replay_data(struct obd_export *exp,
struct obd_client_handle *och,
struct lookup_intent *it);
int mdc_save_lmm(struct ptlrpc_request *req, void *data, u32 size);
void mdc_commit_open(struct ptlrpc_request *req);
void mdc_replay_open(struct ptlrpc_request *req);
int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
const void *data, size_t datalen,
umode_t mode, uid_t uid, gid_t gid,
kernel_cap_t capability, __u64 rdev,
struct ptlrpc_request **request);
int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request);
int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
const char *old, size_t oldlen, const char *new, size_t newlen,
struct ptlrpc_request **request);
int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
void *ea, size_t ealen, struct ptlrpc_request **request);
int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request);
int mdc_file_resync(struct obd_export *exp, struct md_op_data *data);
int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
union ldlm_policy_data *policy, enum ldlm_mode mode,
enum ldlm_cancel_flags flags, void *opaque);
int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
struct lu_fid *fid, enum mds_ibits_locks *bits);
int mdc_intent_getattr_async(struct obd_export *exp, struct md_op_item *item);
int mdc_batch_add(struct obd_export *exp, struct lu_batch *bh,
struct md_op_item *item);
enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
const struct lu_fid *fid, enum ldlm_type type,
union ldlm_policy_data *policy,
enum ldlm_mode mode,
enum ldlm_match_flags match_flags,
struct lustre_handle *lockh);
#define MDC_CHANGELOG_DEV_COUNT LMV_MAX_STRIPE_COUNT
#define MDC_CHANGELOG_DEV_NAME "changelog"
extern struct class *mdc_changelog_class;
extern dev_t mdc_changelog_dev;
extern struct idr mdc_changelog_minor_idr;
int mdc_changelog_cdev_init(struct obd_device *obd);
void mdc_changelog_cdev_finish(struct obd_device *obd);
static inline int mdc_prep_elc_req(struct obd_export *exp,
struct ptlrpc_request *req, int opc,
struct list_head *cancels, int count)
{
return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
count);
}
#ifdef CONFIG_LUSTRE_FS_POSIX_ACL
int mdc_unpack_acl(struct req_capsule *pill, struct lustre_md *md);
#else
static inline
int mdc_unpack_acl(struct req_capsule *pill, struct lustre_md *md)
{
return 0;
}
#endif
static inline void mdc_body2lvb(struct mdt_body *body, struct ost_lvb *lvb)
{
LASSERT(body->mbo_valid & OBD_MD_DOM_SIZE);
lvb->lvb_mtime = body->mbo_mtime;
lvb->lvb_atime = body->mbo_atime;
lvb->lvb_ctime = body->mbo_ctime;
lvb->lvb_blocks = body->mbo_dom_blocks;
lvb->lvb_size = body->mbo_dom_size;
}
/* mdc_dev.c */
extern struct lu_device_type mdc_device_type;
int mdc_ldlm_blocking_ast(struct ldlm_lock *dlmlock,
struct ldlm_lock_desc *new, void *data, int flag);
int mdc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data);
int mdc_fill_lvb(struct req_capsule *pill, struct ost_lvb *lvb);
int mdc_finish_enqueue(struct obd_export *exp,
struct req_capsule *pill,
struct ldlm_enqueue_info *einfo,
struct lookup_intent *it,
struct lustre_handle *lockh, int rc);
/* the minimum inline repsize should be PAGE_SIZE at least */
#define MDC_DOM_DEF_INLINE_REPSIZE max(8192UL, PAGE_SIZE)
#define MDC_DOM_MAX_INLINE_REPSIZE XATTR_SIZE_MAX
#endif
