-/* -*- 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, 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Author: Wang Di <wangdi@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
-#include <linux/module.h>
-#include <linux/jbd.h>
-#include <obd.h>
#include <obd_class.h>
-#include <lustre_ver.h>
#include <obd_support.h>
-#include <lprocfs_status.h>
-
-#include <linux/ldiskfs_fs.h>
#include <lustre_mds.h>
-#include <lustre/lustre_idl.h>
#include <lustre_fid.h>
#include "mdd_internal.h"
static int __mdd_lookup(const struct lu_env *env, struct md_object *pobj,
const struct lu_name *lname, struct lu_fid* fid,
int mask);
-static int mdd_links_add(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- const struct lu_fid *pfid,
- const struct lu_name *lname,
- struct thandle *handle);
+static int mdd_declare_links_add(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ struct thandle *handle);
+static inline int mdd_links_add(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ const struct lu_fid *pfid,
+ const struct lu_name *lname,
+ struct thandle *handle, int first);
+static inline int mdd_links_del(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ const struct lu_fid *pfid,
+ const struct lu_name *lname,
+ struct thandle *handle);
static 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 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,
+ int first, int check);
static int
__mdd_lookup_locked(const struct lu_env *env, struct md_object *pobj,
*
* returns < 0: if error
*/
-static int mdd_is_subdir(const struct lu_env *env,
- struct md_object *mo, const struct lu_fid *fid,
- struct lu_fid *sfid)
+int mdd_is_subdir(const struct lu_env *env, struct md_object *mo,
+ const struct lu_fid *fid, struct lu_fid *sfid)
{
struct mdd_device *mdd = mdo2mdd(mo);
int rc;
RETURN(-ENOTDIR);
iops = &obj->do_index_ops->dio_it;
- it = iops->init(env, obj, BYPASS_CAPA);
- if (it != NULL) {
+ it = iops->init(env, obj, LUDA_64BITHASH, BYPASS_CAPA);
+ if (!IS_ERR(it)) {
result = iops->get(env, it, (const void *)"");
if (result > 0) {
int i;
iops->put(env, it);
iops->fini(env, it);
} else
- result = -ENOMEM;
+ result = PTR_ERR(it);
RETURN(result);
}
rc = mdd_permission_internal_locked(env, pobj, NULL,
MAY_WRITE | MAY_EXEC,
MOR_TGT_PARENT);
-
if (!rc && check_nlink)
rc = __mdd_may_link(env, pobj);
* Check whether can unlink from the pobj in the case of "cobj == NULL".
*/
int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
- const struct md_attr *ma)
+ const struct lu_attr *attr)
{
int rc;
ENTRY;
if (mdd_is_dead_obj(pobj))
RETURN(-ENOENT);
- if ((ma->ma_attr.la_valid & LA_FLAGS) &&
- (ma->ma_attr.la_flags & (LUSTRE_APPEND_FL | LUSTRE_IMMUTABLE_FL)))
+ if ((attr->la_valid & LA_FLAGS) &&
+ (attr->la_flags & (LUSTRE_APPEND_FL | LUSTRE_IMMUTABLE_FL)))
RETURN(-EPERM);
rc = mdd_permission_internal_locked(env, pobj, NULL,
* VTX feature has been checked already, no need check again.
*/
static inline int mdd_is_sticky(const struct lu_env *env,
- struct mdd_object *pobj,
- struct mdd_object *cobj)
+ struct mdd_object *pobj,
+ struct mdd_object *cobj)
{
- struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
- struct md_ucred *uc = md_ucred(env);
- int rc;
+ struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
+ struct lu_ucred *uc = lu_ucred_assert(env);
+ int rc;
- if (pobj) {
- rc = mdd_la_get(env, pobj, tmp_la, BYPASS_CAPA);
- if (rc)
- return rc;
+ if (pobj) {
+ rc = mdd_la_get(env, pobj, tmp_la, BYPASS_CAPA);
+ if (rc)
+ return rc;
- if (!(tmp_la->la_mode & S_ISVTX) ||
- (tmp_la->la_uid == uc->mu_fsuid))
- return 0;
- }
+ if (!(tmp_la->la_mode & S_ISVTX) ||
+ (tmp_la->la_uid == uc->uc_fsuid))
+ return 0;
+ }
- rc = mdd_la_get(env, cobj, tmp_la, BYPASS_CAPA);
- if (rc)
- return rc;
+ rc = mdd_la_get(env, cobj, tmp_la, BYPASS_CAPA);
+ if (rc)
+ return rc;
- if (tmp_la->la_uid == uc->mu_fsuid)
- return 0;
+ if (tmp_la->la_uid == uc->uc_fsuid)
+ return 0;
- return !mdd_capable(uc, CFS_CAP_FOWNER);
+ return !mdd_capable(uc, CFS_CAP_FOWNER);
}
/*
* pobj maybe NULL
*/
int mdd_may_delete(const struct lu_env *env, struct mdd_object *pobj,
- struct mdd_object *cobj, struct md_attr *ma,
- int check_perm, int check_empty)
+ struct mdd_object *cobj, struct lu_attr *cattr,
+ struct lu_attr *src_attr, int check_perm, int check_empty)
{
int rc = 0;
ENTRY;
if (!mdd_object_exists(cobj))
RETURN(-ENOENT);
+ if (mdd_is_dead_obj(cobj))
+ RETURN(-ESTALE);
+
if (pobj) {
+ if (!mdd_object_exists(pobj))
+ RETURN(-ENOENT);
+
if (mdd_is_dead_obj(pobj))
RETURN(-ENOENT);
RETURN(-EPERM);
}
- if (!(ma->ma_attr_flags & MDS_VTX_BYPASS) &&
- mdd_is_sticky(env, pobj, cobj))
+ if (mdd_is_sticky(env, pobj, cobj))
RETURN(-EPERM);
if (mdd_is_immutable(cobj) || mdd_is_append(cobj))
RETURN(-EPERM);
- if ((ma->ma_attr.la_valid & LA_FLAGS) &&
- (ma->ma_attr.la_flags & (LUSTRE_APPEND_FL | LUSTRE_IMMUTABLE_FL)))
+ if ((cattr->la_valid & LA_FLAGS) &&
+ (cattr->la_flags & (LUSTRE_APPEND_FL | LUSTRE_IMMUTABLE_FL)))
RETURN(-EPERM);
- if (S_ISDIR(ma->ma_attr.la_mode)) {
- struct mdd_device *mdd = mdo2mdd(&cobj->mod_obj);
+ /* additional check the rename case */
+ if (src_attr) {
+ if (S_ISDIR(src_attr->la_mode)) {
+ struct mdd_device *mdd = mdo2mdd(&cobj->mod_obj);
- if (!S_ISDIR(mdd_object_type(cobj)))
- RETURN(-ENOTDIR);
+ if (!S_ISDIR(cattr->la_mode))
+ RETURN(-ENOTDIR);
- if (lu_fid_eq(mdo2fid(cobj), &mdd->mdd_root_fid))
- RETURN(-EBUSY);
- } else if (S_ISDIR(mdd_object_type(cobj)))
- RETURN(-EISDIR);
+ if (lu_fid_eq(mdo2fid(cobj), &mdd->mdd_root_fid))
+ RETURN(-EBUSY);
+ } else if (S_ISDIR(cattr->la_mode))
+ RETURN(-EISDIR);
+ }
- if (S_ISDIR(ma->ma_attr.la_mode) && check_empty)
+ if (S_ISDIR(cattr->la_mode) && check_empty)
rc = mdd_dir_is_empty(env, cobj);
RETURN(rc);
int rc = 0;
ENTRY;
+ if (!mdd_object_exists(src_obj))
+ RETURN(-ENOENT);
+
+ if (mdd_is_dead_obj(src_obj))
+ RETURN(-ESTALE);
+
/* Local ops, no lookup before link, check filename length here. */
if (lname && (lname->ln_namelen > m->mdd_dt_conf.ddp_max_name_len))
RETURN(-ENAMETOOLONG);
RETURN(rc);
}
-/**
- * If subdir count is up to ddp_max_nlink, then enable MNLINK_OBJ flag and
- * assign i_nlink to 1 which means the i_nlink for subdir count is incredible
- * (maybe too large to be represented). It is a trick to break through the
- * "i_nlink" limitation for subdir count.
- */
-void __mdd_ref_add(const struct lu_env *env, struct mdd_object *obj,
- struct thandle *handle)
+static int __mdd_index_delete_only(const struct lu_env *env, struct mdd_object *pobj,
+ const char *name, struct thandle *handle,
+ struct lustre_capa *capa)
{
- struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
- struct mdd_device *m = mdd_obj2mdd_dev(obj);
+ struct dt_object *next = mdd_object_child(pobj);
+ int rc;
+ ENTRY;
- if (!mdd_is_mnlink(obj)) {
- if (S_ISDIR(mdd_object_type(obj))) {
- if (mdd_la_get(env, obj, tmp_la, BYPASS_CAPA))
- return;
-
- if (tmp_la->la_nlink >= m->mdd_dt_conf.ddp_max_nlink) {
- obj->mod_flags |= MNLINK_OBJ;
- tmp_la->la_nlink = 1;
- tmp_la->la_valid = LA_NLINK;
- mdd_attr_set_internal(env, obj, tmp_la, handle,
- 0);
- return;
- }
- }
- mdo_ref_add(env, obj, handle);
- }
+ if (dt_try_as_dir(env, next)) {
+ rc = next->do_index_ops->dio_delete(env, next,
+ (struct dt_key *)name,
+ handle, capa);
+ } else
+ rc = -ENOTDIR;
+
+ RETURN(rc);
}
-void __mdd_ref_del(const struct lu_env *env, struct mdd_object *obj,
- struct thandle *handle, int is_dot)
+static int __mdd_index_insert_only(const struct lu_env *env,
+ struct mdd_object *pobj,
+ const struct lu_fid *lf, const char *name,
+ struct thandle *handle,
+ struct lustre_capa *capa)
{
- if (!mdd_is_mnlink(obj) || is_dot)
- mdo_ref_del(env, obj, handle);
+ struct dt_object *next = mdd_object_child(pobj);
+ int rc;
+ ENTRY;
+
+ if (dt_try_as_dir(env, next)) {
+ struct lu_ucred *uc = lu_ucred_check(env);
+ int ignore_quota;
+
+ ignore_quota = uc ? uc->uc_cap & CFS_CAP_SYS_RESOURCE_MASK : 1;
+ rc = next->do_index_ops->dio_insert(env, next,
+ (struct dt_rec*)lf,
+ (const struct dt_key *)name,
+ handle, capa, ignore_quota);
+ } else {
+ rc = -ENOTDIR;
+ }
+ RETURN(rc);
}
/* insert named index, add reference if isdir */
const struct lu_fid *lf, const char *name, int is_dir,
struct thandle *handle, struct lustre_capa *capa)
{
- struct dt_object *next = mdd_object_child(pobj);
int rc;
ENTRY;
- if (dt_try_as_dir(env, next)) {
- struct md_ucred *uc = md_ucred(env);
-
- rc = next->do_index_ops->dio_insert(env, next,
- __mdd_fid_rec(env, lf),
- (const struct dt_key *)name,
- handle, capa, uc->mu_cap &
- CFS_CAP_SYS_RESOURCE_MASK);
- } else {
- rc = -ENOTDIR;
- }
-
- if (rc == 0) {
- if (is_dir) {
- mdd_write_lock(env, pobj, MOR_TGT_PARENT);
- __mdd_ref_add(env, pobj, handle);
- mdd_write_unlock(env, pobj);
- }
+ rc = __mdd_index_insert_only(env, pobj, lf, name, handle, capa);
+ if (rc == 0 && is_dir) {
+ mdd_write_lock(env, pobj, MOR_TGT_PARENT);
+ mdo_ref_add(env, pobj, handle);
+ mdd_write_unlock(env, pobj);
}
RETURN(rc);
}
const char *name, int is_dir, struct thandle *handle,
struct lustre_capa *capa)
{
- struct dt_object *next = mdd_object_child(pobj);
int rc;
ENTRY;
- if (dt_try_as_dir(env, next)) {
- rc = next->do_index_ops->dio_delete(env, next,
- (struct dt_key *)name,
- handle, capa);
- if (rc == 0 && is_dir) {
- int is_dot = 0;
-
- if (name != NULL && name[0] == '.' && name[1] == 0)
- is_dot = 1;
- mdd_write_lock(env, pobj, MOR_TGT_PARENT);
- __mdd_ref_del(env, pobj, handle, is_dot);
- mdd_write_unlock(env, pobj);
- }
- } else
- rc = -ENOTDIR;
+ rc = __mdd_index_delete_only(env, pobj, name, handle, capa);
+ if (rc == 0 && is_dir) {
+ mdd_write_lock(env, pobj, MOR_TGT_PARENT);
+ mdo_ref_del(env, pobj, handle);
+ mdd_write_unlock(env, pobj);
+ }
RETURN(rc);
}
-static int
-__mdd_index_insert_only(const struct lu_env *env, struct mdd_object *pobj,
- const struct lu_fid *lf, const char *name,
- struct thandle *handle, struct lustre_capa *capa)
+int mdd_declare_llog_record(const struct lu_env *env, struct mdd_device *mdd,
+ int reclen, struct thandle *handle)
{
- struct dt_object *next = mdd_object_child(pobj);
- int rc;
- ENTRY;
+ int rc;
- if (dt_try_as_dir(env, next)) {
- struct md_ucred *uc = md_ucred(env);
+ /* XXX: this is a temporary solution to declare llog changes
+ * will be fixed in 2.3 with new llog implementation */
- rc = next->do_index_ops->dio_insert(env, next,
- __mdd_fid_rec(env, lf),
- (const struct dt_key *)name,
- handle, capa, uc->mu_cap &
- CFS_CAP_SYS_RESOURCE_MASK);
- } else {
- rc = -ENOTDIR;
- }
- RETURN(rc);
+ LASSERT(mdd->mdd_capa);
+
+ /* XXX: Since we use the 'mdd_capa' as fake llog object here, we
+ * have to set the parameter 'size' as INT_MAX or 0 to inform
+ * OSD that this record write is for a llog write or catalog
+ * header update, and osd declare function will reserve less
+ * credits for optimization purpose.
+ *
+ * Reserve 6 blocks for a llog write, since the llog file is
+ * usually small, reserve 2 blocks for catalog header update,
+ * because we know for sure that catalog header is already
+ * allocated.
+ *
+ * This hack should be removed in 2.3.
+ */
+
+ /* record itself */
+ rc = dt_declare_record_write(env, mdd->mdd_capa,
+ DECLARE_LLOG_WRITE, 0, handle);
+ if (rc)
+ return rc;
+
+ /* header will be updated as well */
+ rc = dt_declare_record_write(env, mdd->mdd_capa,
+ DECLARE_LLOG_WRITE, 0, handle);
+ if (rc)
+ return rc;
+
+ /* also we should be able to create new plain log */
+ rc = dt_declare_create(env, mdd->mdd_capa, NULL, NULL, NULL, handle);
+ if (rc)
+ return rc;
+
+ /* new record referencing new plain llog */
+ rc = dt_declare_record_write(env, mdd->mdd_capa,
+ DECLARE_LLOG_WRITE, 0, handle);
+ if (rc)
+ return rc;
+
+ /* catalog's header will be updated as well */
+ rc = dt_declare_record_write(env, mdd->mdd_capa,
+ DECLARE_LLOG_REWRITE, 0, handle);
+
+ return rc;
+}
+
+int mdd_declare_changelog_store(const struct lu_env *env,
+ struct mdd_device *mdd,
+ const struct lu_name *fname,
+ struct thandle *handle)
+{
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_ctxt *ctxt;
+ struct llog_changelog_rec *rec;
+ struct lu_buf *buf;
+ int reclen;
+ int rc;
+
+ /* Not recording */
+ if (!(mdd->mdd_cl.mc_flags & CLM_ON))
+ return 0;
+
+ reclen = llog_data_len(sizeof(*rec) +
+ (fname != NULL ? fname->ln_namelen : 0));
+ buf = mdd_buf_alloc(env, reclen);
+ if (buf->lb_buf == NULL)
+ return -ENOMEM;
+
+ rec = buf->lb_buf;
+ rec->cr_hdr.lrh_len = reclen;
+ rec->cr_hdr.lrh_type = CHANGELOG_REC;
+
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
+ if (ctxt == NULL)
+ return -ENXIO;
+
+ rc = llog_declare_add(env, ctxt->loc_handle, &rec->cr_hdr, handle);
+ llog_ctxt_put(ctxt);
+
+ return rc;
+}
+
+static int mdd_declare_changelog_ext_store(const struct lu_env *env,
+ struct mdd_device *mdd,
+ const struct lu_name *tname,
+ const struct lu_name *sname,
+ struct thandle *handle)
+{
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_ctxt *ctxt;
+ struct llog_changelog_ext_rec *rec;
+ struct lu_buf *buf;
+ int reclen;
+ int rc;
+
+ /* Not recording */
+ if (!(mdd->mdd_cl.mc_flags & CLM_ON))
+ return 0;
+
+ reclen = llog_data_len(sizeof(*rec) +
+ (tname != NULL ? tname->ln_namelen : 0) +
+ (sname != NULL ? 1 + sname->ln_namelen : 0));
+ buf = mdd_buf_alloc(env, reclen);
+ if (buf->lb_buf == NULL)
+ return -ENOMEM;
+
+ rec = buf->lb_buf;
+ rec->cr_hdr.lrh_len = reclen;
+ rec->cr_hdr.lrh_type = CHANGELOG_REC;
+
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
+ if (ctxt == NULL)
+ return -ENXIO;
+
+ rc = llog_declare_add(env, ctxt->loc_handle, &rec->cr_hdr, handle);
+ llog_ctxt_put(ctxt);
+
+ return rc;
+}
+
+/** Add a changelog entry \a rec to the changelog llog
+ * \param mdd
+ * \param rec
+ * \param handle - currently ignored since llogs start their own transaction;
+ * this will hopefully be fixed in llog rewrite
+ * \retval 0 ok
+ */
+int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
+ struct llog_changelog_rec *rec, struct thandle *th)
+{
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_ctxt *ctxt;
+ int rc;
+
+ rec->cr_hdr.lrh_len = llog_data_len(sizeof(*rec) + rec->cr.cr_namelen);
+ rec->cr_hdr.lrh_type = CHANGELOG_REC;
+ rec->cr.cr_time = cl_time();
+
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ /* NB: I suppose it's possible llog_add adds out of order wrt cr_index,
+ * but as long as the MDD transactions are ordered correctly for e.g.
+ * rename conflicts, I don't think this should matter. */
+ rec->cr.cr_index = ++mdd->mdd_cl.mc_index;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
+
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
+ if (ctxt == NULL)
+ return -ENXIO;
+
+ rc = llog_add(env, ctxt->loc_handle, &rec->cr_hdr, NULL, NULL, th);
+ llog_ctxt_put(ctxt);
+ if (rc > 0)
+ rc = 0;
+ return rc;
+}
+
+/** Add a changelog_ext entry \a rec to the changelog llog
+ * \param mdd
+ * \param rec
+ * \param handle - currently ignored since llogs start their own transaction;
+ * this will hopefully be fixed in llog rewrite
+ * \retval 0 ok
+ */
+int mdd_changelog_ext_store(const struct lu_env *env, struct mdd_device *mdd,
+ struct llog_changelog_ext_rec *rec,
+ struct thandle *th)
+{
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_ctxt *ctxt;
+ int rc;
+
+ rec->cr_hdr.lrh_len = llog_data_len(sizeof(*rec) + rec->cr.cr_namelen);
+ /* llog_lvfs_write_rec sets the llog tail len */
+ rec->cr_hdr.lrh_type = CHANGELOG_REC;
+ rec->cr.cr_time = cl_time();
+
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ /* NB: I suppose it's possible llog_add adds out of order wrt cr_index,
+ * but as long as the MDD transactions are ordered correctly for e.g.
+ * rename conflicts, I don't think this should matter. */
+ rec->cr.cr_index = ++mdd->mdd_cl.mc_index;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
+
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
+ if (ctxt == NULL)
+ return -ENXIO;
+
+ /* nested journal transaction */
+ rc = llog_add(env, ctxt->loc_handle, &rec->cr_hdr, NULL, NULL, th);
+ llog_ctxt_put(ctxt);
+ if (rc > 0)
+ rc = 0;
+
+ return rc;
}
/** Store a namespace change changelog record
* want the change to commit without the log entry.
* \param target - mdd_object of change
* \param parent - parent dir/object
- * \param tf - target lu_fid, overrides fid of \a target if this is non-null
* \param tname - target name string
* \param handle - transacion handle
*/
static int mdd_changelog_ns_store(const struct lu_env *env,
- struct mdd_device *mdd,
- enum changelog_rec_type type,
- struct mdd_object *target,
- struct mdd_object *parent,
- const struct lu_fid *tf,
- const struct lu_name *tname,
- struct thandle *handle)
+ struct mdd_device *mdd,
+ enum changelog_rec_type type,
+ unsigned flags,
+ struct mdd_object *target,
+ struct mdd_object *parent,
+ const struct lu_name *tname,
+ struct thandle *handle)
+{
+ struct llog_changelog_rec *rec;
+ struct lu_buf *buf;
+ int reclen;
+ int rc;
+ ENTRY;
+
+ /* Not recording */
+ if (!(mdd->mdd_cl.mc_flags & CLM_ON))
+ RETURN(0);
+ if ((mdd->mdd_cl.mc_mask & (1 << type)) == 0)
+ RETURN(0);
+
+ LASSERT(target != NULL);
+ LASSERT(parent != NULL);
+ LASSERT(tname != NULL);
+ LASSERT(handle != NULL);
+
+ reclen = llog_data_len(sizeof(*rec) + tname->ln_namelen);
+ buf = mdd_buf_alloc(env, reclen);
+ if (buf->lb_buf == NULL)
+ RETURN(-ENOMEM);
+ rec = buf->lb_buf;
+
+ rec->cr.cr_flags = CLF_VERSION | (CLF_FLAGMASK & flags);
+ rec->cr.cr_type = (__u32)type;
+ rec->cr.cr_tfid = *mdo2fid(target);
+ rec->cr.cr_pfid = *mdo2fid(parent);
+ rec->cr.cr_namelen = tname->ln_namelen;
+ memcpy(rec->cr.cr_name, tname->ln_name, tname->ln_namelen);
+
+ target->mod_cltime = cfs_time_current_64();
+
+ rc = mdd_changelog_store(env, mdd, rec, handle);
+ if (rc < 0) {
+ CERROR("changelog failed: rc=%d, op%d %s c"DFID" p"DFID"\n",
+ rc, type, tname->ln_name, PFID(&rec->cr.cr_tfid),
+ PFID(&rec->cr.cr_pfid));
+ RETURN(-EFAULT);
+ }
+
+ RETURN(0);
+}
+
+
+/** Store a namespace change changelog record
+ * If this fails, we must fail the whole transaction; we don't
+ * want the change to commit without the log entry.
+ * \param target - mdd_object of change
+ * \param tpfid - target parent dir/object fid
+ * \param sfid - source object fid
+ * \param spfid - source parent fid
+ * \param tname - target name string
+ * \param sname - source name string
+ * \param handle - transacion handle
+ */
+static int mdd_changelog_ext_ns_store(const struct lu_env *env,
+ struct mdd_device *mdd,
+ enum changelog_rec_type type,
+ unsigned flags,
+ struct mdd_object *target,
+ const struct lu_fid *tpfid,
+ const struct lu_fid *sfid,
+ const struct lu_fid *spfid,
+ const struct lu_name *tname,
+ const struct lu_name *sname,
+ struct thandle *handle)
+{
+ struct llog_changelog_ext_rec *rec;
+ struct lu_buf *buf;
+ int reclen;
+ int rc;
+ ENTRY;
+
+ /* Not recording */
+ if (!(mdd->mdd_cl.mc_flags & CLM_ON))
+ RETURN(0);
+ if ((mdd->mdd_cl.mc_mask & (1 << type)) == 0)
+ RETURN(0);
+
+ LASSERT(sfid != NULL);
+ LASSERT(tpfid != NULL);
+ LASSERT(tname != NULL);
+ LASSERT(handle != NULL);
+
+ reclen = llog_data_len(sizeof(*rec) +
+ sname != NULL ? 1 + sname->ln_namelen : 0);
+ buf = mdd_buf_alloc(env, reclen);
+ if (buf->lb_buf == NULL)
+ RETURN(-ENOMEM);
+ rec = buf->lb_buf;
+
+ rec->cr.cr_flags = CLF_EXT_VERSION | (CLF_FLAGMASK & flags);
+ rec->cr.cr_type = (__u32)type;
+ rec->cr.cr_pfid = *tpfid;
+ rec->cr.cr_sfid = *sfid;
+ rec->cr.cr_spfid = *spfid;
+ rec->cr.cr_namelen = tname->ln_namelen;
+ memcpy(rec->cr.cr_name, tname->ln_name, tname->ln_namelen);
+ if (sname) {
+ LASSERT(sfid != NULL);
+ rec->cr.cr_name[tname->ln_namelen] = '\0';
+ memcpy(rec->cr.cr_name + tname->ln_namelen + 1, sname->ln_name,
+ sname->ln_namelen);
+ rec->cr.cr_namelen += 1 + sname->ln_namelen;
+ }
+
+ if (likely(target != NULL)) {
+ rec->cr.cr_tfid = *mdo2fid(target);
+ target->mod_cltime = cfs_time_current_64();
+ } else {
+ fid_zero(&rec->cr.cr_tfid);
+ }
+
+ rc = mdd_changelog_ext_store(env, mdd, rec, handle);
+ if (rc < 0) {
+ CERROR("changelog failed: rc=%d, op%d %s c"DFID" p"DFID"\n",
+ rc, type, tname->ln_name, PFID(sfid), PFID(tpfid));
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int mdd_declare_link(const struct lu_env *env,
+ struct mdd_device *mdd,
+ struct mdd_object *p,
+ struct mdd_object *c,
+ const struct lu_name *name,
+ struct thandle *handle)
{
- const struct lu_fid *tfid;
- const struct lu_fid *tpfid = mdo2fid(parent);
- struct llog_changelog_rec *rec;
- struct lu_buf *buf;
- int reclen;
int rc;
- ENTRY;
- if (!(mdd->mdd_cl.mc_flags & CLM_ON))
- RETURN(0);
+ rc = mdo_declare_index_insert(env, p, mdo2fid(c), name->ln_name,handle);
+ if (rc)
+ return rc;
- LASSERT(parent != NULL);
- LASSERT(tname != NULL);
- LASSERT(handle != NULL);
-
- /* target */
- reclen = llog_data_len(sizeof(*rec) + tname->ln_namelen);
- buf = mdd_buf_alloc(env, reclen);
- if (buf->lb_buf == NULL)
- RETURN(-ENOMEM);
- rec = (struct llog_changelog_rec *)buf->lb_buf;
-
- rec->cr_flags = CLF_VERSION;
- rec->cr_type = (__u32)type;
- tfid = tf ? tf : mdo2fid(target);
- rec->cr_tfid = *tfid;
- rec->cr_pfid = *tpfid;
- rec->cr_namelen = tname->ln_namelen;
- memcpy(rec->cr_name, tname->ln_name, rec->cr_namelen);
- if (likely(target))
- target->mod_cltime = cfs_time_current_64();
-
- rc = mdd_changelog_llog_write(mdd, rec, handle);
- if (rc < 0) {
- CERROR("changelog failed: rc=%d, op%d %s c"DFID" p"DFID"\n",
- rc, type, tname->ln_name, PFID(tfid), PFID(tpfid));
- return -EFAULT;
- }
+ rc = mdo_declare_ref_add(env, c, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_attr_set(env, p, NULL, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_attr_set(env, c, NULL, handle);
+ if (rc)
+ return rc;
+
+ rc = mdd_declare_links_add(env, c, handle);
+ if (rc)
+ return rc;
- return 0;
+ rc = mdd_declare_changelog_store(env, mdd, name, handle);
+
+ return rc;
}
static int mdd_link(const struct lu_env *env, struct md_object *tgt_obj,
struct mdd_device *mdd = mdo2mdd(src_obj);
struct dynlock_handle *dlh;
struct thandle *handle;
-#ifdef HAVE_QUOTA_SUPPORT
- struct obd_device *obd = mdd->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0, rec_pending = 0;
-#endif
int rc;
ENTRY;
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota) {
- struct lu_attr *la_tmp = &mdd_env_info(env)->mti_la;
-
- rc = mdd_la_get(env, mdd_tobj, la_tmp, BYPASS_CAPA);
- if (!rc) {
- quota_opc = FSFILT_OP_LINK;
- mdd_quota_wrapper(la_tmp, qids);
- /* get block quota for parent */
- lquota_chkquota(mds_quota_interface_ref, obd,
- qids[USRQUOTA], qids[GRPQUOTA], 1,
- &rec_pending, NULL, LQUOTA_FLAGS_BLK);
- }
- }
-#endif
-
- mdd_txn_param_build(env, mdd, MDD_TXN_LINK_OP);
- handle = mdd_trans_start(env, mdd);
+ handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
GOTO(out_pending, rc = PTR_ERR(handle));
+ rc = mdd_declare_link(env, mdd, mdd_tobj, mdd_sobj, lname, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(stop, rc);
+
dlh = mdd_pdo_write_lock(env, mdd_tobj, name, MOR_TGT_CHILD);
if (dlh == NULL)
GOTO(out_trans, rc = -ENOMEM);
if (rc)
GOTO(out_unlock, rc);
- __mdd_ref_add(env, mdd_sobj, handle);
+ rc = mdo_ref_add(env, mdd_sobj, handle);
+ if (rc != 0) {
+ __mdd_index_delete_only(env, mdd_tobj, name, handle,
+ mdd_object_capa(env, mdd_tobj));
+ GOTO(out_unlock, rc);
+ }
LASSERT(ma->ma_attr.la_valid & LA_CTIME);
la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal_locked(env, mdd_tobj, la, handle, 0);
+ rc = mdd_attr_check_set_internal(env, mdd_tobj, la, handle, 0);
if (rc)
GOTO(out_unlock, rc);
la->la_valid = LA_CTIME;
rc = mdd_attr_check_set_internal(env, mdd_sobj, la, handle, 0);
- if (rc == 0)
- mdd_links_add(env, mdd_sobj, mdo2fid(mdd_tobj), lname, handle);
+ if (rc == 0) {
+ mdd_links_add(env, mdd_sobj,
+ mdo2fid(mdd_tobj), lname, handle, 0);
+ }
EXIT;
out_unlock:
mdd_pdo_write_unlock(env, mdd_tobj, dlh);
out_trans:
if (rc == 0)
- rc = mdd_changelog_ns_store(env, mdd, CL_HARDLINK, mdd_sobj,
- mdd_tobj, NULL, lname, handle);
+ rc = mdd_changelog_ns_store(env, mdd, CL_HARDLINK, 0, mdd_sobj,
+ mdd_tobj, lname, handle);
+stop:
mdd_trans_stop(env, mdd, rc, handle);
out_pending:
-#ifdef HAVE_QUOTA_SUPPORT
- if (quota_opc) {
- if (rec_pending)
- lquota_pending_commit(mds_quota_interface_ref, obd,
- qids[USRQUOTA], qids[GRPQUOTA],
- 1, 1);
- /* Trigger dqacq for the parent owner. If failed,
- * the next call for lquota_chkquota will process it. */
- lquota_adjust(mds_quota_interface_ref, obd, 0, qids, rc,
- quota_opc);
- }
-#endif
return rc;
}
+int mdd_declare_finish_unlink(const struct lu_env *env,
+ struct mdd_object *obj,
+ struct md_attr *ma,
+ struct thandle *handle)
+{
+ int rc;
+
+ rc = orph_declare_index_insert(env, obj, handle);
+ if (rc)
+ return rc;
+
+ return mdo_declare_destroy(env, obj, handle);
+}
+
/* caller should take a lock before calling */
int mdd_finish_unlink(const struct lu_env *env,
struct mdd_object *obj, struct md_attr *ma,
struct thandle *th)
{
- int rc;
- int reset = 1;
+ int rc = 0;
+ int is_dir = S_ISDIR(ma->ma_attr.la_mode);
ENTRY;
- rc = mdd_iattr_get(env, obj, ma);
- if (rc == 0 && ma->ma_attr.la_nlink == 0) {
+ LASSERT(mdd_write_locked(env, obj) != 0);
+
+ if (rc == 0 && (ma->ma_attr.la_nlink == 0 || is_dir)) {
+ obj->mod_flags |= DEAD_OBJ;
/* add new orphan and the object
* will be deleted during mdd_close() */
if (obj->mod_count) {
rc = __mdd_orphan_add(env, obj, th);
if (rc == 0)
- obj->mod_flags |= ORPHAN_OBJ;
- }
-
- obj->mod_flags |= DEAD_OBJ;
- if (!(obj->mod_flags & ORPHAN_OBJ)) {
- rc = mdd_object_kill(env, obj, ma);
- if (rc == 0)
- reset = 0;
+ CDEBUG(D_HA, "Object "DFID" is inserted into "
+ "orphan list, open count = %d\n",
+ PFID(mdd_object_fid(obj)),
+ obj->mod_count);
+ else
+ CERROR("Object "DFID" fail to be an orphan, "
+ "open count = %d, maybe cause failed "
+ "open replay\n",
+ PFID(mdd_object_fid(obj)),
+ obj->mod_count);
+ } else {
+ rc = mdo_destroy(env, obj, th);
}
-
}
- if (reset)
- ma->ma_valid &= ~(MA_LOV | MA_COOKIE);
RETURN(rc);
}
* has mdd_write_lock on cobj already, but not on pobj yet
*/
int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
- struct mdd_object *cobj, struct md_attr *ma)
+ struct mdd_object *cobj, struct lu_attr *cattr)
{
int rc;
ENTRY;
- rc = mdd_may_delete(env, pobj, cobj, ma, 1, 1);
+ rc = mdd_may_delete(env, pobj, cobj, cattr, NULL, 1, 1);
RETURN(rc);
}
+static int mdd_declare_unlink(const struct lu_env *env, struct mdd_device *mdd,
+ struct mdd_object *p, struct mdd_object *c,
+ const struct lu_name *name, struct md_attr *ma,
+ struct thandle *handle)
+{
+ int rc;
+
+ rc = mdo_declare_index_delete(env, p, name->ln_name, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_ref_del(env, p, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_ref_del(env, c, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_ref_del(env, c, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_attr_set(env, p, NULL, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_attr_set(env, c, NULL, handle);
+ if (rc)
+ return rc;
+
+ rc = mdd_declare_finish_unlink(env, c, ma, handle);
+ if (rc)
+ return rc;
+
+ rc = mdd_declare_links_add(env, c, handle);
+ if (rc)
+ return rc;
+
+ rc = mdd_declare_changelog_store(env, mdd, name, handle);
+
+ return rc;
+}
+
static int mdd_unlink(const struct lu_env *env, struct md_object *pobj,
struct md_object *cobj, const struct lu_name *lname,
struct md_attr *ma)
{
const char *name = lname->ln_name;
+ struct lu_attr *cattr = &mdd_env_info(env)->mti_cattr;
struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
struct mdd_object *mdd_pobj = md2mdd_obj(pobj);
struct mdd_object *mdd_cobj = md2mdd_obj(cobj);
struct mdd_device *mdd = mdo2mdd(pobj);
struct dynlock_handle *dlh;
struct thandle *handle;
-#ifdef HAVE_QUOTA_SUPPORT
- struct obd_device *obd = mdd->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qcids[MAXQUOTAS] = { 0, 0 };
- unsigned int qpids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0;
-#endif
- int is_dir = S_ISDIR(ma->ma_attr.la_mode);
- int rc;
+ int rc, is_dir;
ENTRY;
- LASSERTF(mdd_object_exists(mdd_cobj) > 0, "FID is "DFID"\n",
- PFID(mdd_object_fid(mdd_cobj)));
-
- rc = mdd_log_txn_param_build(env, cobj, ma, MDD_TXN_UNLINK_OP);
- if (rc)
- RETURN(rc);
+ if (mdd_object_exists(mdd_cobj) <= 0)
+ RETURN(-ENOENT);
- handle = mdd_trans_start(env, mdd);
+ handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
RETURN(PTR_ERR(handle));
+ rc = mdd_declare_unlink(env, mdd, mdd_pobj, mdd_cobj,
+ lname, ma, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(stop, rc);
+
dlh = mdd_pdo_write_lock(env, mdd_pobj, name, MOR_TGT_PARENT);
if (dlh == NULL)
- GOTO(out_trans, rc = -ENOMEM);
+ GOTO(stop, rc = -ENOMEM);
mdd_write_lock(env, mdd_cobj, MOR_TGT_CHILD);
- rc = mdd_unlink_sanity_check(env, mdd_pobj, mdd_cobj, ma);
+ /* fetch cattr */
+ rc = mdd_la_get(env, mdd_cobj, cattr, mdd_object_capa(env, mdd_cobj));
if (rc)
GOTO(cleanup, rc);
- rc = __mdd_index_delete(env, mdd_pobj, name, is_dir, handle,
- mdd_object_capa(env, mdd_pobj));
+ is_dir = S_ISDIR(cattr->la_mode);
+
+ rc = mdd_unlink_sanity_check(env, mdd_pobj, mdd_cobj, cattr);
if (rc)
GOTO(cleanup, rc);
- __mdd_ref_del(env, mdd_cobj, handle, 0);
+ rc = mdo_ref_del(env, mdd_cobj, handle);
+ if (rc != 0) {
+ __mdd_index_insert_only(env, mdd_pobj, mdo2fid(mdd_cobj),
+ name, handle,
+ mdd_object_capa(env, mdd_pobj));
+ GOTO(cleanup, rc);
+ }
+
+ rc = __mdd_index_delete(env, mdd_pobj, name, is_dir, handle,
+ mdd_object_capa(env, mdd_pobj));
+ if (rc)
+ GOTO(cleanup, rc);
+
if (is_dir)
/* unlink dot */
- __mdd_ref_del(env, mdd_cobj, handle, 1);
+ mdo_ref_del(env, mdd_cobj, handle);
+
+ /* fetch updated nlink */
+ rc = mdd_la_get(env, mdd_cobj, cattr, mdd_object_capa(env, mdd_cobj));
+ if (rc)
+ GOTO(cleanup, rc);
LASSERT(ma->ma_attr.la_valid & LA_CTIME);
la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal_locked(env, mdd_pobj, la, handle, 0);
+ rc = mdd_attr_check_set_internal(env, mdd_pobj, la, handle, 0);
if (rc)
GOTO(cleanup, rc);
- la->la_valid = LA_CTIME;
- rc = mdd_attr_check_set_internal(env, mdd_cobj, la, handle, 0);
- if (rc)
- GOTO(cleanup, rc);
+ if (cattr->la_nlink > 0 || mdd_cobj->mod_count > 0) {
+ /* update ctime of an unlinked file only if it is still
+ * opened or a link still exists */
+ la->la_valid = LA_CTIME;
+ rc = mdd_attr_check_set_internal(env, mdd_cobj, la, handle, 0);
+ if (rc)
+ GOTO(cleanup, rc);
+ }
+ /* XXX: this transfer to ma will be removed with LOD/OSP */
+ ma->ma_attr = *cattr;
+ ma->ma_valid |= MA_INODE;
rc = mdd_finish_unlink(env, mdd_cobj, ma, handle);
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota && ma->ma_valid & MA_INODE &&
- ma->ma_attr.la_nlink == 0) {
- struct lu_attr *la_tmp = &mdd_env_info(env)->mti_la;
-
- rc = mdd_la_get(env, mdd_pobj, la_tmp, BYPASS_CAPA);
- if (!rc) {
- mdd_quota_wrapper(la_tmp, qpids);
- if (mdd_cobj->mod_count == 0) {
- quota_opc = FSFILT_OP_UNLINK;
- mdd_quota_wrapper(&ma->ma_attr, qcids);
- } else {
- quota_opc = FSFILT_OP_UNLINK_PARTIAL_PARENT;
- }
- }
- }
-#endif
- if (rc == 0)
- obd_set_info_async(mdd2obd_dev(mdd)->u.mds.mds_osc_exp,
- sizeof(KEY_UNLINKED), KEY_UNLINKED, 0,
- NULL, NULL);
- if (!is_dir)
- /* old files may not have link ea; ignore errors */
- mdd_links_rename(env, mdd_cobj, mdo2fid(mdd_pobj),
- lname, NULL, NULL, handle);
+ /* fetch updated nlink */
+ if (rc == 0)
+ rc = mdd_la_get(env, mdd_cobj, cattr,
+ mdd_object_capa(env, mdd_cobj));
+ if (!is_dir)
+ /* old files may not have link ea; ignore errors */
+ mdd_links_del(env, mdd_cobj, mdo2fid(mdd_pobj), lname, handle);
+
+ /* if object is removed then we can't get its attrs, use last get */
+ if (cattr->la_nlink == 0) {
+ ma->ma_attr = *cattr;
+ ma->ma_valid |= MA_INODE;
+ }
EXIT;
cleanup:
mdd_write_unlock(env, mdd_cobj);
mdd_pdo_write_unlock(env, mdd_pobj, dlh);
-out_trans:
- if (rc == 0)
- rc = mdd_changelog_ns_store(env, mdd,
- is_dir ? CL_RMDIR : CL_UNLINK,
- mdd_cobj, mdd_pobj, NULL, lname,
- handle);
+ if (rc == 0) {
+ int cl_flags;
+
+ cl_flags = (cattr->la_nlink == 0) ? CLF_UNLINK_LAST : 0;
+ if ((ma->ma_valid & MA_HSM) &&
+ (ma->ma_hsm.mh_flags & HS_EXISTS))
+ cl_flags |= CLF_UNLINK_HSM_EXISTS;
+
+ rc = mdd_changelog_ns_store(env, mdd,
+ is_dir ? CL_RMDIR : CL_UNLINK, cl_flags,
+ mdd_cobj, mdd_pobj, lname, handle);
+ }
+stop:
mdd_trans_stop(env, mdd, rc, handle);
-#ifdef HAVE_QUOTA_SUPPORT
- if (quota_opc)
- /* Trigger dqrel on the owner of child and parent. If failed,
- * the next call for lquota_chkquota will process it. */
- lquota_adjust(mds_quota_interface_ref, obd, qcids, qpids, rc,
- quota_opc);
-#endif
+
return rc;
}
-/* has not lock on pobj yet */
-static int mdd_ni_sanity_check(const struct lu_env *env,
- struct md_object *pobj,
- const struct md_attr *ma)
+/*
+ * The permission has been checked when obj created, no need check again.
+ */
+static int mdd_cd_sanity_check(const struct lu_env *env,
+ struct mdd_object *obj)
{
- struct mdd_object *obj = md2mdd_obj(pobj);
- int rc;
ENTRY;
- if (ma->ma_attr_flags & MDS_PERM_BYPASS)
- RETURN(0);
+ /* EEXIST check */
+ if (!obj || mdd_is_dead_obj(obj))
+ RETURN(-ENOENT);
- rc = mdd_may_create(env, obj, NULL, 1, S_ISDIR(ma->ma_attr.la_mode));
+ RETURN(0);
- RETURN(rc);
}
-/*
- * Partial operation.
- */
-static int mdd_name_insert(const struct lu_env *env,
- struct md_object *pobj,
- const struct lu_name *lname,
- const struct lu_fid *fid,
- const struct md_attr *ma)
-{
- const char *name = lname->ln_name;
- struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
- struct mdd_object *mdd_obj = md2mdd_obj(pobj);
- struct mdd_device *mdd = mdo2mdd(pobj);
- struct dynlock_handle *dlh;
- struct thandle *handle;
- int is_dir = S_ISDIR(ma->ma_attr.la_mode);
-#ifdef HAVE_QUOTA_SUPPORT
- struct md_ucred *uc = md_ucred(env);
- struct obd_device *obd = mdd->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0, rec_pending = 0;
- cfs_cap_t save = uc->mu_cap;
-#endif
- int rc;
- ENTRY;
-
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota) {
- if (!(ma->ma_attr_flags & MDS_QUOTA_IGNORE)) {
- struct lu_attr *la_tmp = &mdd_env_info(env)->mti_la;
-
- rc = mdd_la_get(env, mdd_obj, la_tmp, BYPASS_CAPA);
- if (!rc) {
- quota_opc = FSFILT_OP_LINK;
- mdd_quota_wrapper(la_tmp, qids);
- /* get block quota for parent */
- lquota_chkquota(mds_quota_interface_ref, obd,
- qids[USRQUOTA], qids[GRPQUOTA],
- 1, &rec_pending, NULL,
- LQUOTA_FLAGS_BLK);
- }
- } else {
- uc->mu_cap |= CFS_CAP_SYS_RESOURCE_MASK;
- }
- }
-#endif
- mdd_txn_param_build(env, mdd, MDD_TXN_INDEX_INSERT_OP);
- handle = mdd_trans_start(env, mdo2mdd(pobj));
- if (IS_ERR(handle))
- GOTO(out_pending, rc = PTR_ERR(handle));
-
- dlh = mdd_pdo_write_lock(env, mdd_obj, name, MOR_TGT_PARENT);
- if (dlh == NULL)
- GOTO(out_trans, rc = -ENOMEM);
-
- rc = mdd_ni_sanity_check(env, pobj, ma);
- if (rc)
- GOTO(out_unlock, rc);
-
- rc = __mdd_index_insert(env, mdd_obj, fid, name, is_dir,
- handle, BYPASS_CAPA);
- if (rc)
- GOTO(out_unlock, rc);
-
- /*
- * For some case, no need update obj's ctime (LA_CTIME is not set),
- * e.g. split_dir.
- * For other cases, update obj's ctime (LA_CTIME is set),
- * e.g. cmr_link.
- */
- if (ma->ma_attr.la_valid & LA_CTIME) {
- la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
- la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal_locked(env, mdd_obj, la,
- handle, 0);
- }
- EXIT;
-out_unlock:
- mdd_pdo_write_unlock(env, mdd_obj, dlh);
-out_trans:
- mdd_trans_stop(env, mdo2mdd(pobj), rc, handle);
-out_pending:
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota) {
- if (quota_opc) {
- if (rec_pending)
- lquota_pending_commit(mds_quota_interface_ref,
- obd, qids[USRQUOTA],
- qids[GRPQUOTA], 1, 1);
- /* Trigger dqacq for the parent owner. If failed,
- * the next call for lquota_chkquota will process it*/
- lquota_adjust(mds_quota_interface_ref, obd, 0, qids,
- rc, quota_opc);
- } else {
- uc->mu_cap = save;
- }
- }
-#endif
- return rc;
-}
-
-/* has not lock on pobj yet */
-static int mdd_nr_sanity_check(const struct lu_env *env,
- struct md_object *pobj,
- const struct md_attr *ma)
-{
- struct mdd_object *obj = md2mdd_obj(pobj);
- int rc;
- ENTRY;
-
- if (ma->ma_attr_flags & MDS_PERM_BYPASS)
- RETURN(0);
-
- rc = mdd_may_unlink(env, obj, ma);
-
- RETURN(rc);
-}
-
-/*
- * Partial operation.
- */
-static int mdd_name_remove(const struct lu_env *env,
- struct md_object *pobj,
- const struct lu_name *lname,
- const struct md_attr *ma)
-{
- const char *name = lname->ln_name;
- struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
- struct mdd_object *mdd_obj = md2mdd_obj(pobj);
- struct mdd_device *mdd = mdo2mdd(pobj);
- struct dynlock_handle *dlh;
- struct thandle *handle;
- int is_dir = S_ISDIR(ma->ma_attr.la_mode);
-#ifdef HAVE_QUOTA_SUPPORT
- struct obd_device *obd = mdd->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0;
-#endif
- int rc;
- ENTRY;
-
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota) {
- struct lu_attr *la_tmp = &mdd_env_info(env)->mti_la;
-
- rc = mdd_la_get(env, mdd_obj, la_tmp, BYPASS_CAPA);
- if (!rc) {
- quota_opc = FSFILT_OP_UNLINK_PARTIAL_PARENT;
- mdd_quota_wrapper(la_tmp, qids);
- }
- }
-#endif
- mdd_txn_param_build(env, mdd, MDD_TXN_INDEX_DELETE_OP);
- handle = mdd_trans_start(env, mdd);
- if (IS_ERR(handle))
- GOTO(out_pending, rc = PTR_ERR(handle));
-
- dlh = mdd_pdo_write_lock(env, mdd_obj, name, MOR_TGT_PARENT);
- if (dlh == NULL)
- GOTO(out_trans, rc = -ENOMEM);
-
- rc = mdd_nr_sanity_check(env, pobj, ma);
- if (rc)
- GOTO(out_unlock, rc);
-
- rc = __mdd_index_delete(env, mdd_obj, name, is_dir,
- handle, BYPASS_CAPA);
- if (rc)
- GOTO(out_unlock, rc);
-
- /*
- * For some case, no need update obj's ctime (LA_CTIME is not set),
- * e.g. split_dir.
- * For other cases, update obj's ctime (LA_CTIME is set),
- * e.g. cmr_unlink.
- */
- if (ma->ma_attr.la_valid & LA_CTIME) {
- la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
- la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal_locked(env, mdd_obj, la,
- handle, 0);
- }
- EXIT;
-out_unlock:
- mdd_pdo_write_unlock(env, mdd_obj, dlh);
-out_trans:
- mdd_trans_stop(env, mdd, rc, handle);
-out_pending:
-#ifdef HAVE_QUOTA_SUPPORT
- /* Trigger dqrel for the parent owner.
- * If failed, the next call for lquota_chkquota will process it. */
- if (quota_opc)
- lquota_adjust(mds_quota_interface_ref, obd, 0, qids, rc,
- quota_opc);
-#endif
- return rc;
-}
-
-/*
- * tobj maybe NULL
- * has mdd_write_lock on tobj alreay, but not on tgt_pobj yet
- */
-static int mdd_rt_sanity_check(const struct lu_env *env,
- struct mdd_object *tgt_pobj,
- struct mdd_object *tobj,
- struct md_attr *ma)
-{
- int rc;
- ENTRY;
-
- if (unlikely(ma->ma_attr_flags & MDS_PERM_BYPASS))
- RETURN(0);
-
- /* XXX: for mdd_rename_tgt, "tobj == NULL" does not mean tobj not
- * exist. In fact, tobj must exist, otherwise the call trace will be:
- * mdt_reint_rename_tgt -> mdo_name_insert -> ... -> mdd_name_insert.
- * When get here, tobj must be NOT NULL, the other case has been
- * processed in cmr_rename_tgt before mdd_rename_tgt and enable
- * MDS_PERM_BYPASS.
- * So check may_delete, but not check nlink of tgt_pobj. */
- LASSERT(tobj);
- rc = mdd_may_delete(env, tgt_pobj, tobj, ma, 1, 1);
-
- RETURN(rc);
-}
-
-/* Partial rename op on slave MDD */
-static int mdd_rename_tgt(const struct lu_env *env,
- struct md_object *pobj, struct md_object *tobj,
- const struct lu_fid *lf, const struct lu_name *lname,
- struct md_attr *ma)
-{
- const char *name = lname->ln_name;
- struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
- struct mdd_object *mdd_tpobj = md2mdd_obj(pobj);
- struct mdd_object *mdd_tobj = md2mdd_obj(tobj);
- struct mdd_device *mdd = mdo2mdd(pobj);
- struct dynlock_handle *dlh;
- struct thandle *handle;
-#ifdef HAVE_QUOTA_SUPPORT
- struct obd_device *obd = mdd->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qcids[MAXQUOTAS] = { 0, 0 };
- unsigned int qpids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0, rec_pending = 0;
-#endif
- int rc;
- ENTRY;
-
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota && !tobj) {
- struct lu_attr *la_tmp = &mdd_env_info(env)->mti_la;
-
- rc = mdd_la_get(env, mdd_tpobj, la_tmp, BYPASS_CAPA);
- if (!rc) {
- quota_opc = FSFILT_OP_LINK;
- mdd_quota_wrapper(la_tmp, qpids);
- /* get block quota for target parent */
- lquota_chkquota(mds_quota_interface_ref, obd,
- qpids[USRQUOTA], qpids[GRPQUOTA], 1,
- &rec_pending, NULL, LQUOTA_FLAGS_BLK);
- }
- }
-#endif
- mdd_txn_param_build(env, mdd, MDD_TXN_RENAME_TGT_OP);
- handle = mdd_trans_start(env, mdd);
- if (IS_ERR(handle))
- GOTO(out_pending, rc = PTR_ERR(handle));
-
- dlh = mdd_pdo_write_lock(env, mdd_tpobj, name, MOR_TGT_PARENT);
- if (dlh == NULL)
- GOTO(out_trans, rc = -ENOMEM);
- if (tobj)
- mdd_write_lock(env, mdd_tobj, MOR_TGT_CHILD);
-
- rc = mdd_rt_sanity_check(env, mdd_tpobj, mdd_tobj, ma);
- if (rc)
- GOTO(cleanup, rc);
-
- /*
- * If rename_tgt is called then we should just re-insert name with
- * correct fid, no need to dec/inc parent nlink if obj is dir.
- */
- rc = __mdd_index_delete(env, mdd_tpobj, name, 0, handle, BYPASS_CAPA);
- if (rc)
- GOTO(cleanup, rc);
-
- rc = __mdd_index_insert_only(env, mdd_tpobj, lf, name, handle,
- BYPASS_CAPA);
- if (rc)
- GOTO(cleanup, rc);
-
- LASSERT(ma->ma_attr.la_valid & LA_CTIME);
- la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
-
- la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal_locked(env, mdd_tpobj, la, handle, 0);
- if (rc)
- GOTO(cleanup, rc);
-
- /*
- * For tobj is remote case cmm layer has processed
- * and pass NULL tobj to here. So when tobj is NOT NULL,
- * it must be local one.
- */
- if (tobj && mdd_object_exists(mdd_tobj)) {
- __mdd_ref_del(env, mdd_tobj, handle, 0);
-
- /* Remove dot reference. */
- if (S_ISDIR(ma->ma_attr.la_mode))
- __mdd_ref_del(env, mdd_tobj, handle, 1);
-
- la->la_valid = LA_CTIME;
- rc = mdd_attr_check_set_internal(env, mdd_tobj, la, handle, 0);
- if (rc)
- GOTO(cleanup, rc);
-
- rc = mdd_finish_unlink(env, mdd_tobj, ma, handle);
- if (rc)
- GOTO(cleanup, rc);
-
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota && ma->ma_valid & MA_INODE &&
- ma->ma_attr.la_nlink == 0 && mdd_tobj->mod_count == 0) {
- quota_opc = FSFILT_OP_UNLINK_PARTIAL_CHILD;
- mdd_quota_wrapper(&ma->ma_attr, qcids);
- }
-#endif
- }
- EXIT;
-cleanup:
- if (tobj)
- mdd_write_unlock(env, mdd_tobj);
- mdd_pdo_write_unlock(env, mdd_tpobj, dlh);
-out_trans:
- if (rc == 0)
- /* Bare EXT record with no RENAME in front of it signifies
- a partial slave op */
- rc = mdd_changelog_ns_store(env, mdd, CL_EXT, mdd_tobj,
- mdd_tpobj, NULL, lname, handle);
-
- mdd_trans_stop(env, mdd, rc, handle);
-out_pending:
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota) {
- if (rec_pending)
- lquota_pending_commit(mds_quota_interface_ref, obd,
- qpids[USRQUOTA],
- qpids[GRPQUOTA],
- 1, 1);
- if (quota_opc)
- /* Trigger dqrel/dqacq on the target owner of child and
- * parent. If failed, the next call for lquota_chkquota
- * will process it. */
- lquota_adjust(mds_quota_interface_ref, obd, qcids,
- qpids, rc, quota_opc);
- }
-#endif
- return rc;
-}
-
-/*
- * The permission has been checked when obj created, no need check again.
- */
-static int mdd_cd_sanity_check(const struct lu_env *env,
- struct mdd_object *obj)
-{
- ENTRY;
-
- /* EEXIST check */
- if (!obj || mdd_is_dead_obj(obj))
- RETURN(-ENOENT);
-
- RETURN(0);
-
-}
-
-static int mdd_create_data(const struct lu_env *env, struct md_object *pobj,
- struct md_object *cobj, const struct md_op_spec *spec,
- struct md_attr *ma)
+static int mdd_create_data(const struct lu_env *env, struct md_object *pobj,
+ struct md_object *cobj, const struct md_op_spec *spec,
+ struct md_attr *ma)
{
struct mdd_device *mdd = mdo2mdd(cobj);
struct mdd_object *mdd_pobj = md2mdd_obj(pobj);
struct mdd_object *son = md2mdd_obj(cobj);
- struct lu_attr *attr = &ma->ma_attr;
- struct lov_mds_md *lmm = NULL;
- int lmm_size = 0;
struct thandle *handle;
+ const struct lu_buf *buf;
+ struct lu_attr *attr = &mdd_env_info(env)->mti_cattr;
int rc;
ENTRY;
+ /* do not let users to create stripes via .lustre/
+ * mdd_obf_setup() sets IMMUTE_OBJ on this directory */
+ if (pobj && mdd_pobj->mod_flags & IMMUTE_OBJ)
+ RETURN(-ENOENT);
+
rc = mdd_cd_sanity_check(env, son);
if (rc)
RETURN(rc);
if (!md_should_create(spec->sp_cr_flags))
RETURN(0);
- rc = mdd_lov_create(env, mdd, mdd_pobj, son, &lmm, &lmm_size,
- spec, attr);
- if (rc)
- RETURN(rc);
+ /*
+ * there are following use cases for this function:
+ * 1) late striping - file was created with MDS_OPEN_DELAY_CREATE
+ * striping can be specified or not
+ * 2) CMD?
+ */
+ rc = mdd_la_get(env, son, attr, mdd_object_capa(env, son));
+ if (rc)
+ RETURN(rc);
+
+ /* calling ->ah_make_hint() is used to transfer information from parent */
+ mdd_object_make_hint(env, mdd_pobj, son, attr);
- mdd_txn_param_build(env, mdd, MDD_TXN_CREATE_DATA_OP);
- handle = mdd_trans_start(env, mdd);
+ handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
GOTO(out_free, rc = PTR_ERR(handle));
* XXX: Setting the lov ea is not locked but setting the attr is locked?
* Should this be fixed?
*/
-
- /* Replay creates has objects already */
-#if 0
- if (spec->no_create) {
- CDEBUG(D_INFO, "we already have lov ea\n");
- rc = mdd_lov_set_md(env, mdd_pobj, son,
- (struct lov_mds_md *)spec->u.sp_ea.eadata,
- spec->u.sp_ea.eadatalen, handle, 0);
- } else
-#endif
- /* No need mdd_lsm_sanity_check here */
- rc = mdd_lov_set_md(env, mdd_pobj, son, lmm,
- lmm_size, handle, 0);
-
- if (rc == 0)
- rc = mdd_attr_get_internal_locked(env, son, ma);
-
- /* update lov_objid data, must be before transaction stop! */
- if (rc == 0)
- mdd_lov_objid_update(mdd, lmm);
-
- mdd_trans_stop(env, mdd, rc, handle);
+ CDEBUG(D_OTHER, "ea %p/%u, cr_flags %Lo, no_create %u\n",
+ spec->u.sp_ea.eadata, spec->u.sp_ea.eadatalen,
+ spec->sp_cr_flags, spec->no_create);
+
+ if (spec->no_create) {
+ /* replay case */
+ buf = mdd_buf_get_const(env, spec->u.sp_ea.eadata,
+ spec->u.sp_ea.eadatalen);
+ } else if (!(spec->sp_cr_flags & MDS_OPEN_HAS_OBJS)) {
+ if (spec->sp_cr_flags & MDS_OPEN_HAS_EA) {
+ /* lfs setstripe */
+ buf = mdd_buf_get_const(env, spec->u.sp_ea.eadata,
+ spec->u.sp_ea.eadatalen);
+ } else {
+ buf = &LU_BUF_NULL;
+ }
+ } else {
+ /* MDS_OPEN_HAS_OBJS is not used anymore ? */
+ LBUG();
+ }
+
+ rc = dt_declare_xattr_set(env, mdd_object_child(son), buf,
+ XATTR_NAME_LOV, 0, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = dt_xattr_set(env, mdd_object_child(son), buf, XATTR_NAME_LOV,
+ 0, handle, mdd_object_capa(env, son));
+stop:
+ mdd_trans_stop(env, mdd, rc, handle);
out_free:
- /* Finish mdd_lov_create() stuff. */
- mdd_lov_create_finish(env, mdd, lmm, lmm_size, spec);
- RETURN(rc);
+ RETURN(rc);
}
/* Get fid from name and parent */
struct mdd_object *mdd_obj = md2mdd_obj(pobj);
struct mdd_device *m = mdo2mdd(pobj);
struct dt_object *dir = mdd_object_child(mdd_obj);
- struct lu_fid_pack *pack = &mdd_env_info(env)->mti_pack;
int rc;
ENTRY;
else if (unlikely(rc < 0)) {
CERROR("Object "DFID" locates on remote server\n",
PFID(mdo2fid(mdd_obj)));
- LBUG();
+ RETURN(-EINVAL);
}
/* The common filename length check. */
dt_try_as_dir(env, dir))) {
rc = dir->do_index_ops->dio_lookup(env, dir,
- (struct dt_rec *)pack, key,
+ (struct dt_rec *)fid, key,
mdd_object_capa(env, mdd_obj));
if (rc > 0)
- rc = fid_unpack(pack, fid);
+ rc = 0;
else if (rc == 0)
rc = -ENOENT;
} else
RETURN(rc);
}
+int mdd_declare_object_initialize(const struct lu_env *env,
+ struct mdd_object *child,
+ struct lu_attr *attr,
+ struct thandle *handle)
+{
+ int rc;
+
+ rc = mdo_declare_attr_set(env, child, attr, handle);
+ if (rc == 0 && S_ISDIR(attr->la_mode)) {
+ rc = mdo_declare_index_insert(env, child, mdo2fid(child),
+ dot, handle);
+ if (rc == 0)
+ rc = mdo_declare_ref_add(env, child, handle);
+ }
+
+ if (rc == 0)
+ mdd_declare_links_add(env, child, handle);
+
+ return rc;
+}
+
int mdd_object_initialize(const struct lu_env *env, const struct lu_fid *pfid,
- const struct lu_name *lname, struct mdd_object *child,
- struct md_attr *ma, struct thandle *handle,
- const struct md_op_spec *spec)
+ const struct lu_name *lname, struct mdd_object *child,
+ struct lu_attr *attr, struct thandle *handle,
+ const struct md_op_spec *spec)
{
int rc;
ENTRY;
* (2) maybe, the child attributes should be set in OSD when creation.
*/
- rc = mdd_attr_set_internal(env, child, &ma->ma_attr, handle, 0);
+ /*
+ * inode mode has been set in creation time, and it's based on umask,
+ * la_mode and acl, don't set here again! (which will go wrong
+ * because below function doesn't consider umask).
+ * I'd suggest set all object attributes in creation time, see above.
+ */
+ attr->la_valid &= ~LA_MODE;
+ rc = mdd_attr_set_internal(env, child, attr, handle, 0);
if (rc != 0)
RETURN(rc);
- if (S_ISDIR(ma->ma_attr.la_mode)) {
+ if (S_ISDIR(attr->la_mode)) {
/* Add "." and ".." for newly created dir */
- __mdd_ref_add(env, child, handle);
+ mdo_ref_add(env, child, handle);
rc = __mdd_index_insert_only(env, child, mdo2fid(child),
dot, handle, BYPASS_CAPA);
- if (rc == 0) {
+ if (rc == 0)
rc = __mdd_index_insert_only(env, child, pfid,
dotdot, handle,
BYPASS_CAPA);
- if (rc != 0) {
- int rc2;
-
- rc2 = __mdd_index_delete(env, child, dot, 1,
- handle, BYPASS_CAPA);
- if (rc2 != 0)
- CERROR("Failure to cleanup after dotdot"
- " creation: %d (%d)\n", rc2, rc);
- }
- }
+ if (rc != 0)
+ mdo_ref_del(env, child, handle);
}
if (rc == 0)
- mdd_links_add(env, child, pfid, lname, handle);
+ mdd_links_add(env, child, pfid, lname, handle, 1);
RETURN(rc);
}
/* has not lock on pobj yet */
static int mdd_create_sanity_check(const struct lu_env *env,
struct md_object *pobj,
+ struct lu_attr *pattr,
const struct lu_name *lname,
- struct md_attr *ma,
+ struct lu_attr *cattr,
struct md_op_spec *spec)
{
struct mdd_thread_info *info = mdd_env_info(env);
- struct lu_attr *la = &info->mti_la;
struct lu_fid *fid = &info->mti_fid;
struct mdd_object *obj = md2mdd_obj(pobj);
struct mdd_device *m = mdo2mdd(pobj);
* EXEC permission have been checked
* when lookup before create already.
*/
- rc = mdd_permission_internal_locked(env, obj, NULL, MAY_WRITE,
- MOR_TGT_PARENT);
+ rc = mdd_permission_internal_locked(env, obj, pattr, MAY_WRITE,
+ MOR_TGT_PARENT);
if (rc)
RETURN(rc);
}
/* sgid check */
- rc = mdd_la_get(env, obj, la, BYPASS_CAPA);
- if (rc != 0)
- RETURN(rc);
-
- if (la->la_mode & S_ISGID) {
- ma->ma_attr.la_gid = la->la_gid;
- if (S_ISDIR(ma->ma_attr.la_mode)) {
- ma->ma_attr.la_mode |= S_ISGID;
- ma->ma_attr.la_valid |= LA_MODE;
- }
- }
-
- switch (ma->ma_attr.la_mode & S_IFMT) {
+ if (pattr->la_mode & S_ISGID) {
+ cattr->la_gid = pattr->la_gid;
+ if (S_ISDIR(cattr->la_mode)) {
+ cattr->la_mode |= S_ISGID;
+ cattr->la_valid |= LA_MODE;
+ }
+ }
+
+ switch (cattr->la_mode & S_IFMT) {
case S_IFLNK: {
unsigned int symlen = strlen(spec->u.sp_symname) + 1;
RETURN(rc);
}
+static int mdd_declare_create(const struct lu_env *env, struct mdd_device *mdd,
+ struct mdd_object *p, struct mdd_object *c,
+ const struct lu_name *name,
+ struct lu_attr *attr,
+ int got_def_acl,
+ struct thandle *handle,
+ const struct md_op_spec *spec)
+{
+ struct mdd_thread_info *info = mdd_env_info(env);
+ int rc = 0;
+
+ rc = mdd_declare_object_create_internal(env, p, c, attr, handle, spec);
+ if (rc)
+ GOTO(out, rc);
+
+#ifdef CONFIG_FS_POSIX_ACL
+ if (got_def_acl > 0) {
+ struct lu_buf *acl_buf;
+
+ acl_buf = mdd_buf_get(env, NULL, got_def_acl);
+ /* if dir, then can inherit default ACl */
+ if (S_ISDIR(attr->la_mode)) {
+ rc = mdo_declare_xattr_set(env, c, acl_buf,
+ XATTR_NAME_ACL_DEFAULT,
+ 0, handle);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+ rc = mdo_declare_attr_set(env, c, &info->mti_pattr, handle);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = mdo_declare_xattr_set(env, c, acl_buf,
+ XATTR_NAME_ACL_ACCESS, 0, handle);
+ if (rc)
+ GOTO(out, rc);
+ }
+#endif
+
+ if (S_ISDIR(attr->la_mode)) {
+ rc = mdo_declare_ref_add(env, p, handle);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+ rc = mdd_declare_object_initialize(env, c, attr, handle);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = mdo_declare_index_insert(env, p, mdo2fid(c),
+ name->ln_name, handle);
+ if (rc)
+ GOTO(out, rc);
+
+ /* replay case, create LOV EA from client data */
+ if (spec->no_create || (spec->sp_cr_flags & MDS_OPEN_HAS_EA)) {
+ const struct lu_buf *buf;
+
+ buf = mdd_buf_get_const(env, spec->u.sp_ea.eadata,
+ spec->u.sp_ea.eadatalen);
+ rc = mdo_declare_xattr_set(env, c, buf, XATTR_NAME_LOV,
+ 0, handle);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+ if (S_ISLNK(attr->la_mode)) {
+ rc = dt_declare_record_write(env, mdd_object_child(c),
+ strlen(spec->u.sp_symname), 0,
+ handle);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+ rc = mdo_declare_attr_set(env, p, attr, handle);
+ if (rc)
+ return rc;
+
+ rc = mdd_declare_changelog_store(env, mdd, name, handle);
+ if (rc)
+ return rc;
+
+out:
+ return rc;
+}
+
+
/*
* Create object and insert it into namespace.
*/
-static 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)
+static 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)
{
struct mdd_thread_info *info = mdd_env_info(env);
struct lu_attr *la = &info->mti_la_for_fix;
- struct md_attr *ma_acl = &info->mti_ma;
struct mdd_object *mdd_pobj = md2mdd_obj(pobj);
struct mdd_object *son = md2mdd_obj(child);
struct mdd_device *mdd = mdo2mdd(pobj);
struct lu_attr *attr = &ma->ma_attr;
- struct lov_mds_md *lmm = NULL;
struct thandle *handle;
+ struct lu_attr *pattr = &info->mti_pattr;
struct dynlock_handle *dlh;
const char *name = lname->ln_name;
- int rc, created = 0, initialized = 0, inserted = 0, lmm_size = 0;
+ int rc, created = 0, initialized = 0, inserted = 0;
int got_def_acl = 0;
-#ifdef HAVE_QUOTA_SUPPORT
- struct obd_device *obd = mdd->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qcids[MAXQUOTAS] = { 0, 0 };
- unsigned int qpids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0, block_count = 0;
- int inode_pending = 0, block_pending = 0, parent_pending = 0;
-#endif
ENTRY;
/*
* 2. insert (__mdd_index_insert(), lookup again)
*/
+ rc = mdd_la_get(env, mdd_pobj, pattr, BYPASS_CAPA);
+ if (rc != 0)
+ RETURN(rc);
+
/* Sanity checks before big job. */
- rc = mdd_create_sanity_check(env, pobj, lname, ma, spec);
+ rc = mdd_create_sanity_check(env, pobj, pattr, lname, attr, spec);
if (rc)
RETURN(rc);
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota) {
- struct lu_attr *la_tmp = &mdd_env_info(env)->mti_la;
-
- rc = mdd_la_get(env, mdd_pobj, la_tmp, BYPASS_CAPA);
- if (!rc) {
- int same = 0;
-
- quota_opc = FSFILT_OP_CREATE;
- mdd_quota_wrapper(&ma->ma_attr, qcids);
- mdd_quota_wrapper(la_tmp, qpids);
- /* get file quota for child */
- lquota_chkquota(mds_quota_interface_ref, obd,
- qcids[USRQUOTA], qcids[GRPQUOTA], 1,
- &inode_pending, NULL, 0);
- switch (ma->ma_attr.la_mode & S_IFMT) {
- case S_IFLNK:
- case S_IFDIR:
- block_count = 2;
- break;
- case S_IFREG:
- block_count = 1;
- break;
- }
- if (qcids[USRQUOTA] == qpids[USRQUOTA] &&
- qcids[GRPQUOTA] == qpids[GRPQUOTA]) {
- block_count += 1;
- same = 1;
- }
- /* get block quota for child and parent */
- if (block_count)
- lquota_chkquota(mds_quota_interface_ref, obd,
- qcids[USRQUOTA], qcids[GRPQUOTA],
- block_count,
- &block_pending, NULL,
- LQUOTA_FLAGS_BLK);
- if (!same)
- lquota_chkquota(mds_quota_interface_ref, obd,
- qpids[USRQUOTA], qpids[GRPQUOTA], 1,
- &parent_pending, NULL,
- LQUOTA_FLAGS_BLK);
- }
- }
-#endif
-
- /*
- * No RPC inside the transaction, so OST objects should be created at
- * first.
- */
- if (S_ISREG(attr->la_mode)) {
- rc = mdd_lov_create(env, mdd, mdd_pobj, son, &lmm, &lmm_size,
- spec, attr);
- if (rc)
- GOTO(out_pending, rc);
- }
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_DQACQ_NET))
+ GOTO(out_free, rc = -EINPROGRESS);
if (!S_ISLNK(attr->la_mode)) {
- ma_acl->ma_acl_size = sizeof info->mti_xattr_buf;
- ma_acl->ma_acl = info->mti_xattr_buf;
- ma_acl->ma_need = MA_ACL_DEF;
- ma_acl->ma_valid = 0;
+ struct lu_buf *acl_buf;
+ acl_buf = mdd_buf_get(env, info->mti_xattr_buf,
+ sizeof(info->mti_xattr_buf));
mdd_read_lock(env, mdd_pobj, MOR_TGT_PARENT);
- rc = mdd_def_acl_get(env, mdd_pobj, ma_acl);
+ rc = mdo_xattr_get(env, mdd_pobj, acl_buf,
+ XATTR_NAME_ACL_DEFAULT, BYPASS_CAPA);
mdd_read_unlock(env, mdd_pobj);
- if (rc)
- GOTO(out_free, rc);
- else if (ma_acl->ma_valid & MA_ACL_DEF)
- got_def_acl = 1;
+ if (rc > 0)
+ got_def_acl = rc;
+ else if (rc < 0 && rc != -EOPNOTSUPP && rc != -ENODATA)
+ GOTO(out_free, rc);
}
- mdd_txn_param_build(env, mdd, MDD_TXN_MKDIR_OP);
- handle = mdd_trans_start(env, mdd);
+ mdd_object_make_hint(env, mdd_pobj, son, attr);
+
+ handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
GOTO(out_free, rc = PTR_ERR(handle));
+ rc = mdd_declare_create(env, mdd, mdd_pobj, son, lname, attr,
+ got_def_acl, handle, spec);
+ if (rc)
+ GOTO(out_stop, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(out_stop, rc);
+
dlh = mdd_pdo_write_lock(env, mdd_pobj, name, MOR_TGT_PARENT);
if (dlh == NULL)
GOTO(out_trans, rc = -ENOMEM);
mdd_write_lock(env, son, MOR_TGT_CHILD);
- rc = mdd_object_create_internal(env, mdd_pobj, son, ma, handle, spec);
+ rc = mdd_object_create_internal(env, mdd_pobj, son, attr, handle, spec);
if (rc) {
mdd_write_unlock(env, son);
GOTO(cleanup, rc);
#ifdef CONFIG_FS_POSIX_ACL
if (got_def_acl) {
- struct lu_buf *acl_buf = &info->mti_buf;
- acl_buf->lb_buf = ma_acl->ma_acl;
- acl_buf->lb_len = ma_acl->ma_acl_size;
-
- rc = __mdd_acl_init(env, son, acl_buf, &attr->la_mode, handle);
- if (rc) {
- mdd_write_unlock(env, son);
- GOTO(cleanup, rc);
- } else {
- ma->ma_attr.la_valid |= LA_MODE;
- }
+ struct lu_buf *acl_buf;
+
+ acl_buf = mdd_buf_get(env, info->mti_xattr_buf, got_def_acl);
+ rc = __mdd_acl_init(env, son, acl_buf, &attr->la_mode, handle);
+ if (rc) {
+ mdd_write_unlock(env, son);
+ GOTO(cleanup, rc);
+ }
}
#endif
rc = mdd_object_initialize(env, mdo2fid(mdd_pobj), lname,
- son, ma, handle, spec);
+ son, attr, handle, spec);
+
+ /*
+ * in case of replay we just set LOVEA provided by the client
+ * XXX: I think it would be interesting to try "old" way where
+ * MDT calls this xattr_set(LOV) in a different transaction.
+ * probably this way we code can be made better.
+ */
+ if (rc == 0 &&
+ (spec->no_create || (spec->sp_cr_flags & MDS_OPEN_HAS_EA))) {
+ const struct lu_buf *buf;
+
+ buf = mdd_buf_get_const(env, spec->u.sp_ea.eadata,
+ spec->u.sp_ea.eadatalen);
+ rc = mdo_xattr_set(env, son, buf, XATTR_NAME_LOV, 0, handle,
+ BYPASS_CAPA);
+ }
mdd_write_unlock(env, son);
if (rc)
/*
rc = __mdd_index_insert(env, mdd_pobj, mdo2fid(son),
name, S_ISDIR(attr->la_mode), handle,
mdd_object_capa(env, mdd_pobj));
-
if (rc)
GOTO(cleanup, rc);
inserted = 1;
- /* No need mdd_lsm_sanity_check here */
- rc = mdd_lov_set_md(env, mdd_pobj, son, lmm, lmm_size, handle, 0);
- if (rc) {
- CERROR("error on stripe info copy %d \n", rc);
- GOTO(cleanup, rc);
- }
- if (lmm && lmm_size > 0) {
- /* Set Lov here, do not get lmm again later */
- memcpy(ma->ma_lmm, lmm, lmm_size);
- ma->ma_lmm_size = lmm_size;
- ma->ma_valid |= MA_LOV;
- }
-
if (S_ISLNK(attr->la_mode)) {
- struct md_ucred *uc = md_ucred(env);
+ struct lu_ucred *uc = lu_ucred_assert(env);
struct dt_object *dt = mdd_object_child(son);
const char *target_name = spec->u.sp_symname;
int sym_len = strlen(target_name);
loff_t pos = 0;
buf = mdd_buf_get_const(env, target_name, sym_len);
- rc = dt->do_body_ops->dbo_write(env, dt, buf, &pos, handle,
- mdd_object_capa(env, son),
- uc->mu_cap &
- CFS_CAP_SYS_RESOURCE_MASK);
+ rc = dt->do_body_ops->dbo_write(env, dt, buf, &pos, handle,
+ mdd_object_capa(env, son),
+ uc->uc_cap &
+ CFS_CAP_SYS_RESOURCE_MASK);
if (rc == sym_len)
rc = 0;
GOTO(cleanup, rc = -EFAULT);
}
- *la = ma->ma_attr;
+ *la = *attr;
la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal_locked(env, mdd_pobj, la, handle, 0);
+ rc = mdd_attr_check_set_internal(env, mdd_pobj, la, handle, 0);
if (rc)
GOTO(cleanup, rc);
- /* Return attr back. */
- rc = mdd_attr_get_internal_locked(env, son, ma);
EXIT;
cleanup:
- if (rc && created) {
- int rc2 = 0;
-
- if (inserted) {
- rc2 = __mdd_index_delete(env, mdd_pobj, name,
- S_ISDIR(attr->la_mode),
- handle, BYPASS_CAPA);
- if (rc2)
- CERROR("error can not cleanup destroy %d\n",
- rc2);
- }
-
- if (rc2 == 0) {
- mdd_write_lock(env, son, MOR_TGT_CHILD);
- __mdd_ref_del(env, son, handle, 0);
- if (initialized && S_ISDIR(attr->la_mode))
- __mdd_ref_del(env, son, handle, 1);
- mdd_write_unlock(env, son);
- }
+ if (rc != 0 && created != 0) {
+ int rc2;
+
+ if (inserted != 0) {
+ rc2 = __mdd_index_delete(env, mdd_pobj, name,
+ S_ISDIR(attr->la_mode),
+ handle, BYPASS_CAPA);
+ if (rc2 != 0)
+ goto out_stop;
+ }
+
+ mdd_write_lock(env, son, MOR_TGT_CHILD);
+ if (initialized != 0 && S_ISDIR(attr->la_mode)) {
+ /* Drop the reference, no need to delete "."/"..",
+ * because the object to be destroied directly. */
+ rc2 = mdo_ref_del(env, son, handle);
+ if (rc2 != 0) {
+ mdd_write_unlock(env, son);
+ goto out_stop;
+ }
+ }
+
+ rc2 = mdo_ref_del(env, son, handle);
+ if (rc2 != 0) {
+ mdd_write_unlock(env, son);
+ goto out_stop;
+ }
+
+ mdo_destroy(env, son, handle);
+ mdd_write_unlock(env, son);
}
- /* update lov_objid data, must be before transaction stop! */
- if (rc == 0)
- mdd_lov_objid_update(mdd, lmm);
-
mdd_pdo_write_unlock(env, mdd_pobj, dlh);
out_trans:
if (rc == 0)
- rc = mdd_changelog_ns_store(env, mdd,
- S_ISDIR(attr->la_mode) ? CL_MKDIR :
- S_ISREG(attr->la_mode) ? CL_CREATE :
- S_ISLNK(attr->la_mode) ? CL_SOFTLINK : CL_MKNOD,
- son, mdd_pobj, NULL, lname, handle);
+ rc = mdd_changelog_ns_store(env, mdd,
+ S_ISDIR(attr->la_mode) ? CL_MKDIR :
+ S_ISREG(attr->la_mode) ? CL_CREATE :
+ S_ISLNK(attr->la_mode) ? CL_SOFTLINK : CL_MKNOD,
+ 0, son, mdd_pobj, lname, handle);
+out_stop:
mdd_trans_stop(env, mdd, rc, handle);
out_free:
- /* finis lov_create stuff, free all temporary data */
- mdd_lov_create_finish(env, mdd, lmm, lmm_size, spec);
-out_pending:
-#ifdef HAVE_QUOTA_SUPPORT
- if (quota_opc) {
- if (inode_pending)
- lquota_pending_commit(mds_quota_interface_ref, obd,
- qcids[USRQUOTA], qcids[GRPQUOTA],
- 1, 0);
- if (block_pending)
- lquota_pending_commit(mds_quota_interface_ref, obd,
- qcids[USRQUOTA], qcids[GRPQUOTA],
- block_count, 1);
- if (parent_pending)
- lquota_pending_commit(mds_quota_interface_ref, obd,
- qpids[USRQUOTA], qpids[GRPQUOTA],
- 1, 1);
- /* Trigger dqacq on the owner of child and parent. If failed,
- * the next call for lquota_chkquota will process it. */
- lquota_adjust(mds_quota_interface_ref, obd, qcids, qpids, rc,
- quota_opc);
- }
-#endif
+ /* The child object shouldn't be cached anymore */
+ if (rc)
+ set_bit(LU_OBJECT_HEARD_BANSHEE,
+ &child->mo_lu.lo_header->loh_flags);
return rc;
}
struct mdd_object *tgt_pobj,
struct mdd_object *sobj,
struct mdd_object *tobj,
- struct md_attr *ma)
+ struct lu_attr *so_attr,
+ struct lu_attr *tg_attr)
{
int rc = 0;
ENTRY;
- if (unlikely(ma->ma_attr_flags & MDS_PERM_BYPASS))
- RETURN(0);
-
/* XXX: when get here, sobj must NOT be NULL,
* the other case has been processed in cml_rename
* before mdd_rename and enable MDS_PERM_BYPASS. */
LASSERT(sobj);
- rc = mdd_may_delete(env, src_pobj, sobj, ma, 1, 0);
+
+ rc = mdd_may_delete(env, src_pobj, sobj, so_attr, NULL, 1, 0);
if (rc)
RETURN(rc);
rc = mdd_may_create(env, tgt_pobj, NULL,
(src_pobj != tgt_pobj), 0);
else
- rc = mdd_may_delete(env, tgt_pobj, tobj, ma,
+ rc = mdd_may_delete(env, tgt_pobj, tobj, tg_attr, so_attr,
(src_pobj != tgt_pobj), 1);
if (!rc && !tobj && (src_pobj != tgt_pobj) &&
- S_ISDIR(ma->ma_attr.la_mode))
+ S_ISDIR(so_attr->la_mode))
rc = __mdd_may_link(env, tgt_pobj);
RETURN(rc);
}
+static int mdd_declare_rename(const struct lu_env *env,
+ struct mdd_device *mdd,
+ struct mdd_object *mdd_spobj,
+ struct mdd_object *mdd_tpobj,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj,
+ const struct lu_name *tname,
+ const struct lu_name *sname,
+ struct md_attr *ma,
+ struct thandle *handle)
+{
+ int rc;
+
+ LASSERT(mdd_spobj);
+ LASSERT(mdd_tpobj);
+ LASSERT(mdd_sobj);
+
+ /* name from source dir */
+ rc = mdo_declare_index_delete(env, mdd_spobj, sname->ln_name, handle);
+ if (rc)
+ return rc;
+
+ /* .. from source child */
+ if (S_ISDIR(mdd_object_type(mdd_sobj))) {
+ /* source child can be directory,
+ * counted by source dir's nlink */
+ rc = mdo_declare_ref_del(env, mdd_spobj, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_index_delete(env, mdd_sobj, dotdot, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_index_insert(env, mdd_sobj, mdo2fid(mdd_tpobj),
+ dotdot, handle);
+ if (rc)
+ return rc;
+
+ /* new target child can be directory,
+ * counted by target dir's nlink */
+ rc = mdo_declare_ref_add(env, mdd_tpobj, handle);
+ if (rc)
+ return rc;
+
+ }
+
+ rc = mdo_declare_attr_set(env, mdd_spobj, NULL, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_attr_set(env, mdd_sobj, NULL, handle);
+ if (rc)
+ return rc;
+ mdd_declare_links_add(env, mdd_sobj, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_attr_set(env, mdd_tpobj, NULL, handle);
+ if (rc)
+ return rc;
+
+ /* new name */
+ rc = mdo_declare_index_insert(env, mdd_tpobj, mdo2fid(mdd_sobj),
+ tname->ln_name, handle);
+ if (rc)
+ return rc;
+
+ /* name from target dir (old name), we declare it unconditionally
+ * as mdd_rename() calls delete unconditionally as well. so just
+ * to balance declarations vs calls to change ... */
+ rc = mdo_declare_index_delete(env, mdd_tpobj, tname->ln_name, handle);
+ if (rc)
+ return rc;
+
+ if (mdd_tobj && mdd_object_exists(mdd_tobj)) {
+ /* delete target child in target parent directory */
+ rc = mdo_declare_ref_del(env, mdd_tobj, handle);
+ if (rc)
+ return rc;
+
+ if (S_ISDIR(mdd_object_type(mdd_tobj))) {
+ /* target child can be directory,
+ * delete "." reference in target child directory */
+ rc = mdo_declare_ref_del(env, mdd_tobj, handle);
+ if (rc)
+ return rc;
+
+ /* delete ".." reference in target parent directory */
+ rc = mdo_declare_ref_del(env, mdd_tpobj, handle);
+ if (rc)
+ return rc;
+ }
+
+ rc = mdo_declare_attr_set(env, mdd_tobj, NULL, handle);
+ if (rc)
+ return rc;
+
+ mdd_declare_links_add(env, mdd_tobj, handle);
+ if (rc)
+ return rc;
+
+ rc = mdd_declare_finish_unlink(env, mdd_tobj, ma, handle);
+ if (rc)
+ return rc;
+ }
+
+ rc = mdd_declare_changelog_ext_store(env, mdd, tname, sname, handle);
+ if (rc)
+ return rc;
+
+ return rc;
+}
+
/* src object can be remote that is why we use only fid and type of object */
static int mdd_rename(const struct lu_env *env,
struct md_object *src_pobj, struct md_object *tgt_pobj,
const char *sname = lsname->ln_name;
const char *tname = ltname->ln_name;
struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
+ struct lu_attr *so_attr = &mdd_env_info(env)->mti_cattr;
+ struct lu_attr *tg_attr = &mdd_env_info(env)->mti_pattr;
struct mdd_object *mdd_spobj = md2mdd_obj(src_pobj); /* source parent */
struct mdd_object *mdd_tpobj = md2mdd_obj(tgt_pobj);
struct mdd_device *mdd = mdo2mdd(src_pobj);
struct dynlock_handle *sdlh, *tdlh;
struct thandle *handle;
const struct lu_fid *tpobj_fid = mdo2fid(mdd_tpobj);
- int is_dir;
- int rc;
-
-#ifdef HAVE_QUOTA_SUPPORT
- struct obd_device *obd = mdd->mdd_obd_dev;
- struct mds_obd *mds = &obd->u.mds;
- unsigned int qspids[MAXQUOTAS] = { 0, 0 };
- unsigned int qtcids[MAXQUOTAS] = { 0, 0 };
- unsigned int qtpids[MAXQUOTAS] = { 0, 0 };
- int quota_opc = 0, rec_pending = 0;
-#endif
+ const struct lu_fid *spobj_fid = mdo2fid(mdd_spobj);
+ bool is_dir;
+ bool tobj_ref = 0;
+ bool tobj_locked = 0;
+ unsigned cl_flags = 0;
+ int rc, rc2;
ENTRY;
- LASSERT(ma->ma_attr.la_mode & S_IFMT);
- is_dir = S_ISDIR(ma->ma_attr.la_mode);
-
if (tobj)
mdd_tobj = md2mdd_obj(tobj);
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota) {
- struct lu_attr *la_tmp = &mdd_env_info(env)->mti_la;
-
- rc = mdd_la_get(env, mdd_spobj, la_tmp, BYPASS_CAPA);
- if (!rc) {
- mdd_quota_wrapper(la_tmp, qspids);
- if (!tobj) {
- rc = mdd_la_get(env, mdd_tpobj, la_tmp,
- BYPASS_CAPA);
- if (!rc) {
- quota_opc = FSFILT_OP_LINK;
- mdd_quota_wrapper(la_tmp, qtpids);
- /* get block quota for target parent */
- lquota_chkquota(mds_quota_interface_ref,
- obd, qtpids[USRQUOTA],
- qtpids[GRPQUOTA], 1,
- &rec_pending, NULL,
- LQUOTA_FLAGS_BLK);
- }
- }
- }
- }
-#endif
- mdd_txn_param_build(env, mdd, MDD_TXN_RENAME_OP);
- handle = mdd_trans_start(env, mdd);
+ mdd_sobj = mdd_object_find(env, mdd, lf);
+
+ handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
GOTO(out_pending, rc = PTR_ERR(handle));
+ rc = mdd_declare_rename(env, mdd, mdd_spobj, mdd_tpobj, mdd_sobj,
+ mdd_tobj, lsname, ltname, ma, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(stop, rc);
+
/* FIXME: Should consider tobj and sobj too in rename_lock. */
rc = mdd_rename_order(env, mdd, mdd_spobj, mdd_tpobj);
if (rc < 0)
if (sdlh == NULL || tdlh == NULL)
GOTO(cleanup, rc = -ENOMEM);
- mdd_sobj = mdd_object_find(env, mdd, lf);
- rc = mdd_rename_sanity_check(env, mdd_spobj, mdd_tpobj,
- mdd_sobj, mdd_tobj, ma);
+ rc = mdd_la_get(env, mdd_sobj, so_attr,
+ mdd_object_capa(env, mdd_sobj));
+ if (rc)
+ GOTO(cleanup, rc);
+
+ if (mdd_tobj) {
+ rc = mdd_la_get(env, mdd_tobj, tg_attr,
+ mdd_object_capa(env, mdd_tobj));
+ if (rc)
+ GOTO(cleanup, rc);
+ }
+
+ rc = mdd_rename_sanity_check(env, mdd_spobj, mdd_tpobj, mdd_sobj,
+ mdd_tobj, so_attr, tg_attr);
if (rc)
GOTO(cleanup, rc);
+ is_dir = S_ISDIR(so_attr->la_mode);
+
/* Remove source name from source directory */
rc = __mdd_index_delete(env, mdd_spobj, sname, is_dir, handle,
mdd_object_capa(env, mdd_spobj));
GOTO(cleanup, rc);
/* "mv dir1 dir2" needs "dir1/.." link update */
- if (is_dir && mdd_sobj) {
- rc = __mdd_index_delete(env, mdd_sobj, dotdot, is_dir, handle,
- mdd_object_capa(env, mdd_spobj));
+ if (is_dir && mdd_sobj && !lu_fid_eq(spobj_fid, tpobj_fid)) {
+ rc = __mdd_index_delete_only(env, mdd_sobj, dotdot, handle,
+ mdd_object_capa(env, mdd_sobj));
if (rc)
- GOTO(cleanup, rc);
+ GOTO(fixup_spobj2, rc);
- rc = __mdd_index_insert(env, mdd_sobj, tpobj_fid, dotdot,
- is_dir, handle,
- mdd_object_capa(env, mdd_tpobj));
+ rc = __mdd_index_insert_only(env, mdd_sobj, tpobj_fid, dotdot,
+ handle, mdd_object_capa(env, mdd_sobj));
if (rc)
- GOTO(cleanup, rc);
+ GOTO(fixup_spobj, rc);
}
/* Remove target name from target directory
*/
rc = __mdd_index_delete(env, mdd_tpobj, tname, is_dir, handle,
mdd_object_capa(env, mdd_tpobj));
- if (rc != 0 && rc != -ENOENT)
- GOTO(cleanup, rc);
+ if (rc != 0) {
+ if (mdd_tobj) {
+ /* tname might been renamed to something else */
+ GOTO(fixup_spobj, rc);
+ }
+ if (rc != -ENOENT)
+ GOTO(fixup_spobj, rc);
+ }
/* Insert new fid with target name into target dir */
rc = __mdd_index_insert(env, mdd_tpobj, lf, tname, is_dir, handle,
mdd_object_capa(env, mdd_tpobj));
if (rc)
- GOTO(cleanup, rc);
+ GOTO(fixup_tpobj, rc);
LASSERT(ma->ma_attr.la_valid & LA_CTIME);
la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
/* XXX: mdd_sobj must be local one if it is NOT NULL. */
if (mdd_sobj) {
la->la_valid = LA_CTIME;
- rc = mdd_attr_check_set_internal_locked(env, mdd_sobj, la,
- handle, 0);
+ rc = mdd_attr_check_set_internal(env, mdd_sobj, la, handle, 0);
if (rc)
- GOTO(cleanup, rc);
+ GOTO(fixup_tpobj, rc);
}
/* Remove old target object
*/
if (tobj && mdd_object_exists(mdd_tobj)) {
mdd_write_lock(env, mdd_tobj, MOR_TGT_CHILD);
- __mdd_ref_del(env, mdd_tobj, handle, 0);
+ tobj_locked = 1;
+ if (mdd_is_dead_obj(mdd_tobj)) {
+ /* shld not be dead, something is wrong */
+ CERROR("tobj is dead, something is wrong\n");
+ rc = -EINVAL;
+ goto cleanup;
+ }
+ mdo_ref_del(env, mdd_tobj, handle);
/* Remove dot reference. */
- if (is_dir)
- __mdd_ref_del(env, mdd_tobj, handle, 1);
-
- la->la_valid = LA_CTIME;
- rc = mdd_attr_check_set_internal(env, mdd_tobj, la, handle, 0);
- if (rc)
- GOTO(cleanup, rc);
-
- rc = mdd_finish_unlink(env, mdd_tobj, ma, handle);
- mdd_write_unlock(env, mdd_tobj);
- if (rc)
- GOTO(cleanup, rc);
-
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota && ma->ma_valid & MA_INODE &&
- ma->ma_attr.la_nlink == 0 && mdd_tobj->mod_count == 0) {
- quota_opc = FSFILT_OP_UNLINK_PARTIAL_CHILD;
- mdd_quota_wrapper(&ma->ma_attr, qtcids);
- }
-#endif
+ if (S_ISDIR(tg_attr->la_mode))
+ mdo_ref_del(env, mdd_tobj, handle);
+ tobj_ref = 1;
+
+ /* fetch updated nlink */
+ rc = mdd_la_get(env, mdd_tobj, tg_attr,
+ mdd_object_capa(env, mdd_tobj));
+ if (rc != 0) {
+ CERROR("%s: Failed to get nlink for tobj "
+ DFID": rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name,
+ PFID(tpobj_fid), rc);
+ GOTO(fixup_tpobj, rc);
+ }
+
+ la->la_valid = LA_CTIME;
+ rc = mdd_attr_check_set_internal(env, mdd_tobj, la, handle, 0);
+ if (rc != 0) {
+ CERROR("%s: Failed to set ctime for tobj "
+ DFID": rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name,
+ PFID(tpobj_fid), rc);
+ GOTO(fixup_tpobj, rc);
+ }
+
+ /* XXX: this transfer to ma will be removed with LOD/OSP */
+ ma->ma_attr = *tg_attr;
+ ma->ma_valid |= MA_INODE;
+ rc = mdd_finish_unlink(env, mdd_tobj, ma, handle);
+ if (rc != 0) {
+ CERROR("%s: Failed to unlink tobj "
+ DFID": rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name,
+ PFID(tpobj_fid), rc);
+ GOTO(fixup_tpobj, rc);
+ }
+
+ /* fetch updated nlink */
+ rc = mdd_la_get(env, mdd_tobj, tg_attr,
+ mdd_object_capa(env, mdd_tobj));
+ if (rc != 0) {
+ CERROR("%s: Failed to get nlink for tobj "
+ DFID": rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name,
+ PFID(tpobj_fid), rc);
+ GOTO(fixup_tpobj, rc);
+ }
+ /* XXX: this transfer to ma will be removed with LOD/OSP */
+ ma->ma_attr = *tg_attr;
+ ma->ma_valid |= MA_INODE;
+
+ if (so_attr->la_nlink == 0)
+ cl_flags |= CLF_RENAME_LAST;
}
la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal_locked(env, mdd_spobj, la, handle, 0);
+ rc = mdd_attr_check_set_internal(env, mdd_spobj, la, handle, 0);
if (rc)
- GOTO(cleanup, rc);
+ GOTO(fixup_tpobj, rc);
if (mdd_spobj != mdd_tpobj) {
la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal_locked(env, mdd_tpobj, la,
- handle, 0);
+ rc = mdd_attr_check_set_internal(env, mdd_tpobj, la,
+ handle, 0);
}
if (rc == 0 && mdd_sobj) {
mdd_write_lock(env, mdd_sobj, MOR_SRC_CHILD);
- rc = mdd_links_rename(env, mdd_sobj, mdo2fid(mdd_spobj), lsname,
- mdo2fid(mdd_tpobj), ltname, handle);
+ rc = mdd_links_rename(env, mdd_sobj, mdo2fid(mdd_spobj), lsname,
+ mdo2fid(mdd_tpobj), ltname, handle, 0, 0);
if (rc == -ENOENT)
/* Old files might not have EA entry */
mdd_links_add(env, mdd_sobj, mdo2fid(mdd_spobj),
- lsname, handle);
+ lsname, handle, 0);
mdd_write_unlock(env, mdd_sobj);
/* We don't fail the transaction if the link ea can't be
updated -- fid2path will use alternate lookup method. */
}
EXIT;
+
+fixup_tpobj:
+ if (rc) {
+ rc2 = __mdd_index_delete(env, mdd_tpobj, tname, is_dir, handle,
+ BYPASS_CAPA);
+ if (rc2)
+ CWARN("tp obj fix error %d\n",rc2);
+
+ if (mdd_tobj && mdd_object_exists(mdd_tobj) &&
+ !mdd_is_dead_obj(mdd_tobj)) {
+ if (tobj_ref) {
+ mdo_ref_add(env, mdd_tobj, handle);
+ if (is_dir)
+ mdo_ref_add(env, mdd_tobj, handle);
+ }
+
+ rc2 = __mdd_index_insert(env, mdd_tpobj,
+ mdo2fid(mdd_tobj), tname,
+ is_dir, handle,
+ BYPASS_CAPA);
+
+ if (rc2)
+ CWARN("tp obj fix error %d\n",rc2);
+ }
+ }
+
+fixup_spobj:
+ if (rc && is_dir && mdd_sobj) {
+ rc2 = __mdd_index_delete_only(env, mdd_sobj, dotdot, handle,
+ BYPASS_CAPA);
+
+ if (rc2)
+ CWARN("sp obj dotdot delete error %d\n",rc2);
+
+
+ rc2 = __mdd_index_insert_only(env, mdd_sobj, spobj_fid,
+ dotdot, handle, BYPASS_CAPA);
+ if (rc2)
+ CWARN("sp obj dotdot insert error %d\n",rc2);
+ }
+
+fixup_spobj2:
+ if (rc) {
+ rc2 = __mdd_index_insert(env, mdd_spobj,
+ lf, sname, is_dir, handle, BYPASS_CAPA);
+ if (rc2)
+ CWARN("sp obj fix error %d\n",rc2);
+ }
cleanup:
+ if (tobj_locked)
+ mdd_write_unlock(env, mdd_tobj);
if (likely(tdlh) && sdlh != tdlh)
mdd_pdo_write_unlock(env, mdd_tpobj, tdlh);
if (likely(sdlh))
mdd_pdo_write_unlock(env, mdd_spobj, sdlh);
cleanup_unlocked:
if (rc == 0)
- rc = mdd_changelog_ns_store(env, mdd, CL_RENAME, mdd_tobj,
- mdd_spobj, lf, lsname, handle);
- if (rc == 0)
- rc = mdd_changelog_ns_store(env, mdd, CL_EXT, mdd_tobj,
- mdd_tpobj, lf, ltname, handle);
+ rc = mdd_changelog_ext_ns_store(env, mdd, CL_RENAME, cl_flags,
+ mdd_tobj, tpobj_fid, lf,
+ spobj_fid, ltname, lsname,
+ handle);
+stop:
mdd_trans_stop(env, mdd, rc, handle);
if (mdd_sobj)
mdd_object_put(env, mdd_sobj);
out_pending:
-#ifdef HAVE_QUOTA_SUPPORT
- if (mds->mds_quota) {
- if (rec_pending)
- lquota_pending_commit(mds_quota_interface_ref, obd,
- qtpids[USRQUOTA],
- qtpids[GRPQUOTA],
- 1, 1);
- /* Trigger dqrel on the source owner of parent.
- * If failed, the next call for lquota_chkquota will
- * process it. */
- lquota_adjust(mds_quota_interface_ref, obd, 0, qspids, rc,
- FSFILT_OP_UNLINK_PARTIAL_PARENT);
- if (quota_opc)
- /* Trigger dqrel/dqacq on the target owner of child and
- * parent. If failed, the next call for lquota_chkquota
- * will process it. */
- lquota_adjust(mds_quota_interface_ref, obd, qtcids,
- qtpids, rc, quota_opc);
- }
-#endif
return rc;
}
-/** enable/disable storing of hardlink info */
-int mdd_linkea_enable = 1;
-CFS_MODULE_PARM(mdd_linkea_enable, "d", int, 0644,
- "record hardlink info in EAs");
+/**
+ * The data that link search is done on.
+ */
+struct mdd_link_data {
+ /**
+ * Buffer to keep link EA body.
+ */
+ struct lu_buf *ml_buf;
+ /**
+ * The matched header, entry and its lenght in the EA
+ */
+ struct link_ea_header *ml_leh;
+ struct link_ea_entry *ml_lee;
+ int ml_reclen;
+};
+
+static int mdd_links_new(const struct lu_env *env,
+ struct mdd_link_data *ldata)
+{
+ ldata->ml_buf = mdd_buf_alloc(env, CFS_PAGE_SIZE);
+ if (ldata->ml_buf->lb_buf == NULL)
+ return -ENOMEM;
+ ldata->ml_leh = ldata->ml_buf->lb_buf;
+ ldata->ml_leh->leh_magic = LINK_EA_MAGIC;
+ ldata->ml_leh->leh_len = sizeof(struct link_ea_header);
+ ldata->ml_leh->leh_reccount = 0;
+ return 0;
+}
+
+/** Read the link EA into a temp buffer.
+ * Uses the mdd_thread_info::mti_big_buf since it is generally large.
+ * A pointer to the buffer is stored in \a ldata::ml_buf.
+ *
+ * \retval 0 or error
+ */
+int mdd_links_read(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ struct mdd_link_data *ldata)
+{
+ struct lustre_capa *capa;
+ struct link_ea_header *leh;
+ int rc;
+
+ /* First try a small buf */
+ LASSERT(env != NULL);
+ ldata->ml_buf = mdd_buf_alloc(env, CFS_PAGE_SIZE);
+ if (ldata->ml_buf->lb_buf == NULL)
+ return -ENOMEM;
+
+ if (!mdd_object_exists(mdd_obj))
+ return -ENODATA;
+
+ capa = mdd_object_capa(env, mdd_obj);
+ rc = mdo_xattr_get(env, mdd_obj, ldata->ml_buf,
+ XATTR_NAME_LINK, capa);
+ if (rc == -ERANGE) {
+ /* Buf was too small, figure out what we need. */
+ mdd_buf_put(ldata->ml_buf);
+ rc = mdo_xattr_get(env, mdd_obj, ldata->ml_buf,
+ XATTR_NAME_LINK, capa);
+ if (rc < 0)
+ return rc;
+ ldata->ml_buf = mdd_buf_alloc(env, rc);
+ if (ldata->ml_buf->lb_buf == NULL)
+ return -ENOMEM;
+ rc = mdo_xattr_get(env, mdd_obj, ldata->ml_buf,
+ XATTR_NAME_LINK, capa);
+ }
+ if (rc < 0)
+ return rc;
+
+ leh = ldata->ml_buf->lb_buf;
+ if (leh->leh_magic == __swab32(LINK_EA_MAGIC)) {
+ leh->leh_magic = LINK_EA_MAGIC;
+ leh->leh_reccount = __swab32(leh->leh_reccount);
+ leh->leh_len = __swab64(leh->leh_len);
+ /* entries are swabbed by mdd_lee_unpack */
+ }
+ if (leh->leh_magic != LINK_EA_MAGIC)
+ return -EINVAL;
+ if (leh->leh_reccount == 0)
+ return -ENODATA;
+
+ ldata->ml_leh = leh;
+ return 0;
+}
/** Read the link EA into a temp buffer.
* Uses the name_buf since it is generally large.
* \retval ptr to \a lu_buf (always \a mti_big_buf)
*/
struct lu_buf *mdd_links_get(const struct lu_env *env,
- struct mdd_object *mdd_obj)
+ struct mdd_object *mdd_obj)
{
- struct lu_buf *buf;
- struct lustre_capa *capa;
- struct link_ea_header *leh;
- int rc;
+ struct mdd_link_data ldata = { 0 };
+ int rc;
- /* First try a small buf */
- buf = mdd_buf_alloc(env, CFS_PAGE_SIZE);
- if (buf->lb_buf == NULL)
- return ERR_PTR(-ENOMEM);
-
- capa = mdd_object_capa(env, mdd_obj);
- rc = mdo_xattr_get(env, mdd_obj, buf, MDS_LINK_EA_NAME, capa);
- if (rc == -ERANGE) {
- /* Buf was too small, figure out what we need. */
- buf->lb_buf = NULL;
- buf->lb_len = 0;
- rc = mdo_xattr_get(env, mdd_obj, buf, MDS_LINK_EA_NAME, capa);
- if (rc < 0)
- return ERR_PTR(rc);
- buf = mdd_buf_alloc(env, rc);
- if (buf->lb_buf == NULL)
- return ERR_PTR(-ENOMEM);
- rc = mdo_xattr_get(env, mdd_obj, buf, MDS_LINK_EA_NAME, capa);
- }
- if (rc < 0)
- return ERR_PTR(rc);
-
- leh = buf->lb_buf;
- if (leh->leh_magic == __swab32(LINK_EA_MAGIC)) {
- leh->leh_magic = LINK_EA_MAGIC;
- leh->leh_reccount = __swab32(leh->leh_reccount);
- leh->leh_len = __swab64(leh->leh_len);
- /* entries are swabbed by mdd_lee_unpack */
- }
- if (leh->leh_magic != LINK_EA_MAGIC)
- return ERR_PTR(-EINVAL);
+ rc = mdd_links_read(env, mdd_obj, &ldata);
+ return rc ? ERR_PTR(rc) : ldata.ml_buf;
+}
- return buf;
+static int mdd_links_write(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ struct mdd_link_data *ldata,
+ struct thandle *handle)
+{
+ const struct lu_buf *buf = mdd_buf_get_const(env, ldata->ml_buf->lb_buf,
+ ldata->ml_leh->leh_len);
+ return mdo_xattr_set(env, mdd_obj, buf, XATTR_NAME_LINK, 0, handle,
+ mdd_object_capa(env, mdd_obj));
}
/** Pack a link_ea_entry.
* All elements are stored as chars to avoid alignment issues.
* Numbers are always big-endian
- * \param packbuf is a temp fid buffer
* \retval record length
*/
static int mdd_lee_pack(struct link_ea_entry *lee, const struct lu_name *lname,
- const struct lu_fid *pfid, struct lu_fid* packbuf)
+ const struct lu_fid *pfid)
{
- char *ptr;
- int reclen;
-
- fid_pack(&lee->lee_parent_fid, pfid, packbuf);
- ptr = (char *)&lee->lee_parent_fid + lee->lee_parent_fid.fp_len;
- strncpy(ptr, lname->ln_name, lname->ln_namelen);
- reclen = lee->lee_parent_fid.fp_len + lname->ln_namelen +
- sizeof(lee->lee_reclen);
+ struct lu_fid tmpfid;
+ int reclen;
+
+ fid_cpu_to_be(&tmpfid, pfid);
+ memcpy(&lee->lee_parent_fid, &tmpfid, sizeof(tmpfid));
+ memcpy(lee->lee_name, lname->ln_name, lname->ln_namelen);
+ reclen = sizeof(struct link_ea_entry) + lname->ln_namelen;
+
lee->lee_reclen[0] = (reclen >> 8) & 0xff;
lee->lee_reclen[1] = reclen & 0xff;
return reclen;
struct lu_name *lname, struct lu_fid *pfid)
{
*reclen = (lee->lee_reclen[0] << 8) | lee->lee_reclen[1];
- fid_unpack(&lee->lee_parent_fid, pfid);
- lname->ln_name = (char *)&lee->lee_parent_fid +
- lee->lee_parent_fid.fp_len;
- lname->ln_namelen = *reclen - lee->lee_parent_fid.fp_len -
- sizeof(lee->lee_reclen);
+ memcpy(pfid, &lee->lee_parent_fid, sizeof(*pfid));
+ fid_be_to_cpu(pfid, pfid);
+ lname->ln_name = lee->lee_name;
+ lname->ln_namelen = *reclen - sizeof(struct link_ea_entry);
}
-/** Add a record to the end of link ea buf */
-static int __mdd_links_add(const struct lu_env *env, struct lu_buf *buf,
- const struct lu_fid *pfid,
- const struct lu_name *lname)
+static int mdd_declare_links_add(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ struct thandle *handle)
{
- struct link_ea_header *leh;
- struct link_ea_entry *lee;
- int reclen;
-
- /* Make sure our buf is big enough for the new one */
- leh = buf->lb_buf;
- reclen = lname->ln_namelen + sizeof(struct link_ea_entry);
- if (leh->leh_len + reclen > buf->lb_len) {
- mdd_buf_grow(env, leh->leh_len + reclen);
- if (buf->lb_buf == NULL)
- return -ENOMEM;
- }
+ int rc;
+
+ /* XXX: max size? */
+ rc = mdo_declare_xattr_set(env, mdd_obj,
+ mdd_buf_get_const(env, NULL, 4096),
+ XATTR_NAME_LINK, 0, handle);
- leh = buf->lb_buf;
- lee = buf->lb_buf + leh->leh_len;
- reclen = mdd_lee_pack(lee, lname, pfid, &mdd_env_info(env)->mti_fid2);
- leh->leh_len += reclen;
- leh->leh_reccount++;
- return 0;
+ return rc;
}
/* For pathologic linkers, we don't want to spend lots of time scanning the
*/
#define LINKEA_MAX_COUNT 128
-static int mdd_links_add(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- const struct lu_fid *pfid,
- const struct lu_name *lname,
- struct thandle *handle)
+/** Add a record to the end of link ea buf */
+static int mdd_links_add_buf(const struct lu_env *env,
+ struct mdd_link_data *ldata,
+ const struct lu_name *lname,
+ const struct lu_fid *pfid)
{
- struct lu_buf *buf;
- struct link_ea_header *leh;
- int rc;
- ENTRY;
-
- if (!mdd_linkea_enable)
- RETURN(0);
-
- buf = mdd_links_get(env, mdd_obj);
- if (IS_ERR(buf)) {
- rc = PTR_ERR(buf);
- if (rc != -ENODATA) {
- CERROR("link_ea read failed %d "DFID"\n", rc,
- PFID(mdd_object_fid(mdd_obj)));
- RETURN (rc);
- }
- /* empty EA; start one */
- buf = mdd_buf_alloc(env, CFS_PAGE_SIZE);
- if (buf->lb_buf == NULL)
- RETURN(-ENOMEM);
- leh = buf->lb_buf;
- leh->leh_magic = LINK_EA_MAGIC;
- leh->leh_len = sizeof(struct link_ea_header);
- leh->leh_reccount = 0;
- }
-
- leh = buf->lb_buf;
- if (leh->leh_reccount > LINKEA_MAX_COUNT)
- RETURN(-EOVERFLOW);
-
- rc = __mdd_links_add(env, buf, pfid, lname);
- if (rc)
- RETURN(rc);
+ LASSERT(ldata->ml_leh != NULL);
+
+ if (lname == NULL || pfid == NULL)
+ return -EINVAL;
+
+ /* Make sure our buf is big enough for the new one */
+ if (ldata->ml_leh->leh_reccount > LINKEA_MAX_COUNT)
+ return -EOVERFLOW;
+
+ ldata->ml_reclen = lname->ln_namelen + sizeof(struct link_ea_entry);
+ if (ldata->ml_leh->leh_len + ldata->ml_reclen >
+ ldata->ml_buf->lb_len) {
+ if (mdd_buf_grow(env, ldata->ml_leh->leh_len +
+ ldata->ml_reclen) < 0)
+ return -ENOMEM;
+ }
+
+ ldata->ml_leh = ldata->ml_buf->lb_buf;
+ ldata->ml_lee = ldata->ml_buf->lb_buf + ldata->ml_leh->leh_len;
+ ldata->ml_reclen = mdd_lee_pack(ldata->ml_lee, lname, pfid);
+ ldata->ml_leh->leh_len += ldata->ml_reclen;
+ ldata->ml_leh->leh_reccount++;
+ CDEBUG(D_INODE, "New link_ea name '%.*s' is added\n",
+ lname->ln_namelen, lname->ln_name);
+ return 0;
+}
- leh = buf->lb_buf;
- rc = __mdd_xattr_set(env, mdd_obj,
- mdd_buf_get_const(env, buf->lb_buf, leh->leh_len),
- MDS_LINK_EA_NAME, 0, handle);
- if (rc)
- CERROR("link_ea add failed %d "DFID"\n", rc,
- PFID(mdd_object_fid(mdd_obj)));
+/** Del the current record from the link ea buf */
+static void mdd_links_del_buf(const struct lu_env *env,
+ struct mdd_link_data *ldata,
+ const struct lu_name *lname)
+{
+ LASSERT(ldata->ml_leh != NULL);
- if (buf->lb_vmalloc)
- /* if we vmalloced a large buffer drop it */
- mdd_buf_put(buf);
+ ldata->ml_leh->leh_reccount--;
+ ldata->ml_leh->leh_len -= ldata->ml_reclen;
+ memmove(ldata->ml_lee, (char *)ldata->ml_lee + ldata->ml_reclen,
+ (char *)ldata->ml_leh + ldata->ml_leh->leh_len -
+ (char *)ldata->ml_lee);
+ CDEBUG(D_INODE, "Old link_ea name '%.*s' is removed\n",
+ lname->ln_namelen, lname->ln_name);
- RETURN (rc);
}
-static 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)
+/**
+ * Check if such a link exists in linkEA.
+ *
+ * \param mdd_obj object being handled
+ * \param pfid parent fid the link to be found for
+ * \param lname name in the parent's directory entry pointing to this object
+ * \param ldata link data the search to be done on
+ *
+ * \retval 0 success
+ * \retval -ENOENT link does not exist
+ * \retval -ve on error
+ */
+static int mdd_links_find(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ struct mdd_link_data *ldata,
+ const struct lu_name *lname,
+ const struct lu_fid *pfid)
{
- struct lu_buf *buf;
- struct link_ea_header *leh;
- struct link_ea_entry *lee;
- struct lu_name *tmpname = &mdd_env_info(env)->mti_name;
- struct lu_fid *tmpfid = &mdd_env_info(env)->mti_fid;
- int reclen = 0;
- int rc, count;
- ENTRY;
-
- if (!mdd_linkea_enable)
- RETURN(0);
+ struct lu_name *tmpname = &mdd_env_info(env)->mti_name2;
+ struct lu_fid *tmpfid = &mdd_env_info(env)->mti_fid;
+ int count;
+
+ LASSERT(ldata->ml_leh != NULL);
+
+ /* link #0 */
+ ldata->ml_lee = (struct link_ea_entry *)(ldata->ml_leh + 1);
+
+ for (count = 0; count < ldata->ml_leh->leh_reccount; count++) {
+ mdd_lee_unpack(ldata->ml_lee, &ldata->ml_reclen,
+ tmpname, tmpfid);
+ if (tmpname->ln_namelen == lname->ln_namelen &&
+ lu_fid_eq(tmpfid, pfid) &&
+ (strncmp(tmpname->ln_name, lname->ln_name,
+ tmpname->ln_namelen) == 0))
+ break;
+ ldata->ml_lee = (struct link_ea_entry *)((char *)ldata->ml_lee +
+ ldata->ml_reclen);
+ }
+
+ if (count == ldata->ml_leh->leh_reccount) {
+ CDEBUG(D_INODE, "Old link_ea name '%.*s' not found\n",
+ lname->ln_namelen, lname->ln_name);
+ return -ENOENT;
+ }
+ return 0;
+}
- if (mdd_obj->mod_flags & DEAD_OBJ)
- /* No more links, don't bother */
- RETURN(0);
+static int __mdd_links_add(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ struct mdd_link_data *ldata,
+ const struct lu_name *lname,
+ const struct lu_fid *pfid,
+ int first, int check)
+{
+ int rc;
+
+ if (ldata->ml_leh == NULL) {
+ rc = first ? -ENODATA : mdd_links_read(env, mdd_obj, ldata);
+ if (rc) {
+ if (rc != -ENODATA)
+ return rc;
+ rc = mdd_links_new(env, ldata);
+ if (rc)
+ return rc;
+ }
+ }
+
+ if (check) {
+ rc = mdd_links_find(env, mdd_obj, ldata, lname, pfid);
+ if (rc && rc != -ENOENT)
+ return rc;
+ if (rc == 0)
+ return -EEXIST;
+ }
+
+ return mdd_links_add_buf(env, ldata, lname, pfid);
+}
- buf = mdd_links_get(env, mdd_obj);
- if (IS_ERR(buf)) {
- rc = PTR_ERR(buf);
- CERROR("link_ea read failed %d "DFID"\n",
- rc, PFID(mdd_object_fid(mdd_obj)));
- RETURN(rc);
- }
- leh = buf->lb_buf;
- lee = (struct link_ea_entry *)(leh + 1); /* link #0 */
-
- /* Find the old record */
- for(count = 0; count <= leh->leh_reccount; count++) {
- mdd_lee_unpack(lee, &reclen, tmpname, tmpfid);
- if (tmpname->ln_namelen == oldlname->ln_namelen &&
- lu_fid_eq(tmpfid, oldpfid) &&
- (strncmp(tmpname->ln_name, oldlname->ln_name,
- tmpname->ln_namelen) == 0))
- break;
- lee = (struct link_ea_entry *)((char *)lee + reclen);
- }
- if (count > leh->leh_reccount) {
- CDEBUG(D_INODE, "Old link_ea name '%.*s' not found\n",
- oldlname->ln_namelen, oldlname->ln_name);
- GOTO(out, rc = -ENOENT);
- }
+static int __mdd_links_del(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ struct mdd_link_data *ldata,
+ const struct lu_name *lname,
+ const struct lu_fid *pfid)
+{
+ int rc;
- /* Remove the old record */
- leh->leh_reccount--;
- leh->leh_len -= reclen;
- memmove(lee, (char *)lee + reclen, (char *)leh + leh->leh_len -
- (char *)lee);
+ if (ldata->ml_leh == NULL) {
+ rc = mdd_links_read(env, mdd_obj, ldata);
+ if (rc)
+ return rc;
+ }
- /* If renaming, add the new record */
- if (newpfid != NULL) {
- rc = __mdd_links_add(env, buf, newpfid, newlname);
- if (rc)
- GOTO(out, rc);
- leh = buf->lb_buf;
- }
+ rc = mdd_links_find(env, mdd_obj, ldata, lname, pfid);
+ if (rc)
+ return rc;
- rc = __mdd_xattr_set(env, mdd_obj,
- mdd_buf_get_const(env, buf->lb_buf, leh->leh_len),
- MDS_LINK_EA_NAME, 0, handle);
+ mdd_links_del_buf(env, ldata, lname);
+ return 0;
+}
+static 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,
+ int first, int check)
+{
+ struct mdd_link_data ldata = { 0 };
+ int updated = 0;
+ int rc2 = 0;
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(oldpfid != NULL || newpfid != NULL);
+
+ if (mdd_obj->mod_flags & DEAD_OBJ)
+ /* No more links, don't bother */
+ RETURN(0);
+
+ if (oldpfid != NULL) {
+ rc = __mdd_links_del(env, mdd_obj, &ldata,
+ oldlname, oldpfid);
+ if (rc) {
+ if ((check == 0) ||
+ (rc != -ENODATA && rc != -ENOENT))
+ GOTO(out, rc);
+ /* No changes done. */
+ rc = 0;
+ } else {
+ updated = 1;
+ }
+ }
+
+ /* If renaming, add the new record */
+ if (newpfid != NULL) {
+ /* even if the add fails, we still delete the out-of-date
+ * old link */
+ rc2 = __mdd_links_add(env, mdd_obj, &ldata,
+ newlname, newpfid, first, check);
+ if (rc2 == -EEXIST)
+ rc2 = 0;
+ else if (rc2 == 0)
+ updated = 1;
+ }
+
+ if (updated)
+ rc = mdd_links_write(env, mdd_obj, &ldata, handle);
+ EXIT;
out:
- if (rc)
- CDEBUG(D_INODE, "link_ea mv/unlink '%.*s' failed %d "DFID"\n",
- oldlname->ln_namelen, oldlname->ln_name, rc,
- PFID(mdd_object_fid(mdd_obj)));
+ if (rc == 0)
+ rc = rc2;
+ if (rc) {
+ if (oldpfid == NULL)
+ CERROR("link_ea add '%.*s' failed %d "DFID"\n",
+ newlname->ln_namelen, newlname->ln_name,
+ rc, PFID(mdd_object_fid(mdd_obj)));
+ else if (newpfid == NULL)
+ CERROR("link_ea del '%.*s' failed %d "DFID"\n",
+ oldlname->ln_namelen, oldlname->ln_name,
+ rc, PFID(mdd_object_fid(mdd_obj)));
+ else
+ CERROR("link_ea rename '%.*s'->'%.*s' failed %d "
+ DFID"\n",
+ oldlname->ln_namelen, oldlname->ln_name,
+ newlname->ln_namelen, newlname->ln_name,
+ rc, PFID(mdd_object_fid(mdd_obj)));
+ }
+
+ if (ldata.ml_buf && ldata.ml_buf->lb_len > OBD_ALLOC_BIG)
+ /* if we vmalloced a large buffer drop it */
+ mdd_buf_put(ldata.ml_buf);
+
+ return rc;
+}
- if (buf->lb_vmalloc)
- /* if we vmalloced a large buffer drop it */
- mdd_buf_put(buf);
+static inline int mdd_links_add(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ const struct lu_fid *pfid,
+ const struct lu_name *lname,
+ struct thandle *handle, int first)
+{
+ return mdd_links_rename(env, mdd_obj, NULL, NULL,
+ pfid, lname, handle, first, 0);
+}
- RETURN (rc);
+static inline int mdd_links_del(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ const struct lu_fid *pfid,
+ const struct lu_name *lname,
+ struct thandle *handle)
+{
+ return mdd_links_rename(env, mdd_obj, pfid, lname,
+ NULL, NULL, handle, 0, 0);
}
const struct md_dir_operations mdd_dir_ops = {
.mdo_rename = mdd_rename,
.mdo_link = mdd_link,
.mdo_unlink = mdd_unlink,
- .mdo_name_insert = mdd_name_insert,
- .mdo_name_remove = mdd_name_remove,
- .mdo_rename_tgt = mdd_rename_tgt,
- .mdo_create_data = mdd_create_data
+ .mdo_create_data = mdd_create_data,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff