-/* -*- 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.
* Author: wangdi <wangdi@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
#include <linux/module.h>
#include "mdd_internal.h"
-static int mdd_notify(struct obd_device *host, struct obd_device *watched,
- enum obd_notify_event ev, void *owner, void *data)
-{
- struct mdd_device *mdd = owner;
- int rc = 0;
- ENTRY;
-
- LASSERT(owner != NULL);
- switch (ev)
- {
- case OBD_NOTIFY_ACTIVE:
- case OBD_NOTIFY_SYNC:
- case OBD_NOTIFY_SYNC_NONBLOCK:
- rc = md_do_upcall(NULL, &mdd->mdd_md_dev,
- MD_LOV_SYNC, data);
- break;
- case OBD_NOTIFY_CONFIG:
- rc = md_do_upcall(NULL, &mdd->mdd_md_dev,
- MD_LOV_CONFIG, data);
- break;
-#ifdef HAVE_QUOTA_SUPPORT
- case OBD_NOTIFY_QUOTA:
- rc = md_do_upcall(NULL, &mdd->mdd_md_dev,
- MD_LOV_QUOTA, data);
- break;
-#endif
- default:
- CDEBUG(D_INFO, "Unhandled notification %#x\n", ev);
- }
-
- RETURN(rc);
-}
-
-/* The obd is created for handling data stack for mdd */
-int mdd_init_obd(const struct lu_env *env, struct mdd_device *mdd,
- struct lustre_cfg *cfg)
-{
- char *dev = lustre_cfg_string(cfg, 0);
- int rc, name_size, uuid_size;
- char *name, *uuid;
- __u32 mds_id;
- struct lustre_cfg_bufs *bufs;
- struct lustre_cfg *lcfg;
- struct obd_device *obd;
- ENTRY;
-
- mds_id = lu_site2md(mdd2lu_dev(mdd)->ld_site)->ms_node_id;
- name_size = strlen(MDD_OBD_NAME) + 35;
- uuid_size = strlen(MDD_OBD_UUID) + 35;
-
- OBD_ALLOC(name, name_size);
- OBD_ALLOC(uuid, uuid_size);
- if (name == NULL || uuid == NULL)
- GOTO(cleanup_mem, rc = -ENOMEM);
-
- OBD_ALLOC_PTR(bufs);
- if (!bufs)
- GOTO(cleanup_mem, rc = -ENOMEM);
-
- snprintf(name, strlen(MDD_OBD_NAME) + 35, "%s-%s",
- MDD_OBD_NAME, dev);
-
- snprintf(uuid, strlen(MDD_OBD_UUID) + 35, "%s-%s",
- MDD_OBD_UUID, dev);
-
- lustre_cfg_bufs_reset(bufs, name);
- lustre_cfg_bufs_set_string(bufs, 1, MDD_OBD_TYPE);
- lustre_cfg_bufs_set_string(bufs, 2, uuid);
- lustre_cfg_bufs_set_string(bufs, 3, (char*)dev/* MDD_OBD_PROFILE */);
- lustre_cfg_bufs_set_string(bufs, 4, (char*)dev);
-
- lcfg = lustre_cfg_new(LCFG_ATTACH, bufs);
- OBD_FREE_PTR(bufs);
- if (!lcfg)
- GOTO(cleanup_mem, rc = -ENOMEM);
-
- rc = class_attach(lcfg);
- if (rc)
- GOTO(lcfg_cleanup, rc);
-
- obd = class_name2obd(name);
- if (!obd) {
- CERROR("Can not find obd %s\n", MDD_OBD_NAME);
- LBUG();
- }
-
- cfs_spin_lock(&obd->obd_dev_lock);
- obd->obd_recovering = 1;
- cfs_spin_unlock(&obd->obd_dev_lock);
- obd->u.mds.mds_id = mds_id;
- obd->u.obt.obt_osd_properties.osd_max_ea_size =
- mdd->mdd_dt_conf.ddp_max_ea_size;
-
- rc = class_setup(obd, lcfg);
- if (rc)
- GOTO(class_detach, rc);
-
- /*
- * Add here for obd notify mechanism, when adding a new ost, the mds
- * will notify this mdd. The mds will be used for quota also.
- */
- obd->obd_upcall.onu_upcall = mdd_notify;
- obd->obd_upcall.onu_owner = mdd;
- mdd->mdd_obd_dev = obd;
-
- EXIT;
-class_detach:
- if (rc)
- class_detach(obd, lcfg);
-lcfg_cleanup:
- lustre_cfg_free(lcfg);
-cleanup_mem:
- if (name)
- OBD_FREE(name, name_size);
- if (uuid)
- OBD_FREE(uuid, uuid_size);
- return rc;
-}
-
-int mdd_fini_obd(const struct lu_env *env, struct mdd_device *mdd,
- struct lustre_cfg *lcfg)
-{
- struct obd_device *obd;
- int rc;
- ENTRY;
-
- obd = mdd2obd_dev(mdd);
- LASSERT(obd);
-
- rc = class_cleanup(obd, lcfg);
- if (rc)
- GOTO(lcfg_cleanup, rc);
-
- obd->obd_upcall.onu_upcall = NULL;
- obd->obd_upcall.onu_owner = NULL;
- rc = class_detach(obd, lcfg);
- if (rc)
- GOTO(lcfg_cleanup, rc);
- mdd->mdd_obd_dev = NULL;
-
- EXIT;
-lcfg_cleanup:
- return rc;
-}
-
int mdd_get_md(const struct lu_env *env, struct mdd_object *obj,
void *md, int *md_size, const char *name)
{
*md_size = 0;
rc = 0;
} else if (rc < 0) {
- CERROR("Error %d reading eadata - %d\n", rc, *md_size);
+ CDEBUG(D_OTHER, "Error %d reading eadata - %d\n",
+ rc, *md_size);
} else {
/* XXX: Convert lov EA but fixed after verification test. */
*md_size = rc;
RETURN(rc);
}
-
-int mdd_get_md_locked(const struct lu_env *env, struct mdd_object *obj,
- void *md, int *md_size, const char *name)
-{
- int rc = 0;
- mdd_read_lock(env, obj, MOR_TGT_CHILD);
- rc = mdd_get_md(env, obj, md, md_size, name);
- mdd_read_unlock(env, obj);
- return rc;
-}
-
-static int mdd_lov_set_stripe_md(const struct lu_env *env,
- struct mdd_object *obj, struct lu_buf *buf,
- struct thandle *handle)
-{
- struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
- struct obd_device *obd = mdd2obd_dev(mdd);
- struct obd_export *lov_exp = obd->u.mds.mds_lov_exp;
- struct lov_stripe_md *lsm = NULL;
- int rc;
- ENTRY;
-
- LASSERT(S_ISDIR(mdd_object_type(obj)) || S_ISREG(mdd_object_type(obj)));
- rc = obd_iocontrol(OBD_IOC_LOV_SETSTRIPE, lov_exp, 0,
- &lsm, buf->lb_buf);
- if (rc)
- RETURN(rc);
- obd_free_memmd(lov_exp, &lsm);
-
- rc = mdd_xattr_set_txn(env, obj, buf, XATTR_NAME_LOV, 0, handle);
-
- CDEBUG(D_INFO, "set lov ea of "DFID" rc %d \n", PFID(mdo2fid(obj)), rc);
- RETURN(rc);
-}
-
-/*
- * Permission check is done before call it,
- * no need check again.
- */
-static int mdd_lov_set_dir_md(const struct lu_env *env,
- struct mdd_object *obj, struct lu_buf *buf,
- struct thandle *handle)
-{
- struct lov_user_md *lum = NULL;
- int rc = 0;
- ENTRY;
-
- LASSERT(S_ISDIR(mdd_object_type(obj)));
- lum = (struct lov_user_md*)buf->lb_buf;
-
- /* if { size, offset, count } = { 0, -1, 0 } and no pool
- * (i.e. all default values specified) then delete default
- * striping from dir. */
- if (LOVEA_DELETE_VALUES(lum->lmm_stripe_size, lum->lmm_stripe_count,
- lum->lmm_stripe_offset) &&
- lum->lmm_magic != LOV_USER_MAGIC_V3) {
- rc = mdd_xattr_set_txn(env, obj, &LU_BUF_NULL,
- XATTR_NAME_LOV, 0, handle);
- if (rc == -ENODATA)
- rc = 0;
- CDEBUG(D_INFO, "delete lov ea of "DFID" rc %d \n",
- PFID(mdo2fid(obj)), rc);
- } else {
- rc = mdd_lov_set_stripe_md(env, obj, buf, handle);
- }
- RETURN(rc);
-}
-
-int mdd_lsm_sanity_check(const struct lu_env *env, struct mdd_object *obj)
-{
- struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
- struct md_ucred *uc = md_ucred(env);
- int rc;
- ENTRY;
-
- rc = mdd_la_get(env, obj, tmp_la, BYPASS_CAPA);
- if (rc)
- RETURN(rc);
-
- if ((uc->mu_fsuid != tmp_la->la_uid) &&
- !mdd_capable(uc, CFS_CAP_FOWNER))
- rc = mdd_permission_internal_locked(env, obj, tmp_la,
- MAY_WRITE, MOR_TGT_CHILD);
-
- RETURN(rc);
-}
-
-int mdd_lov_set_md(const struct lu_env *env, struct mdd_object *pobj,
- struct mdd_object *child, struct lov_mds_md *lmmp,
- int lmm_size, struct thandle *handle, int set_stripe)
-{
- struct lu_buf *buf;
- cfs_umode_t mode;
- int rc = 0;
- ENTRY;
-
- buf = mdd_buf_get(env, lmmp, lmm_size);
- mode = mdd_object_type(child);
- if (S_ISREG(mode) && lmm_size > 0) {
- if (set_stripe) {
- rc = mdd_lov_set_stripe_md(env, child, buf, handle);
- } else {
- rc = mdd_xattr_set_txn(env, child, buf,
- XATTR_NAME_LOV, 0, handle);
- }
- } else if (S_ISDIR(mode)) {
- if (lmmp == NULL && lmm_size == 0) {
- struct mdd_device *mdd = mdd_obj2mdd_dev(child);
- struct lov_mds_md *lmm = mdd_max_lmm_get(env, mdd);
- int size = sizeof(struct lov_mds_md_v3);
-
- /* Get parent dir stripe and set */
- if (pobj != NULL)
- rc = mdd_get_md_locked(env, pobj, lmm, &size,
- XATTR_NAME_LOV);
- if (rc > 0) {
- buf = mdd_buf_get(env, lmm, size);
- rc = mdd_xattr_set_txn(env, child, buf,
- XATTR_NAME_LOV, 0,
- handle);
- if (rc)
- CERROR("error on copy stripe info: rc "
- "= %d\n", rc);
- }
- } else {
- LASSERT(lmmp != NULL && lmm_size > 0);
- rc = mdd_lov_set_dir_md(env, child, buf, handle);
- }
- }
- CDEBUG(D_INFO, "Set lov md %p size %d for fid "DFID" rc %d\n",
- lmmp, lmm_size, PFID(mdo2fid(child)), rc);
- RETURN(rc);
-}
-
-int mdd_lov_objid_prepare(struct mdd_device *mdd, struct lov_mds_md *lmm)
-{
- /* copy mds_lov code is using wrong layer */
- return mds_lov_prepare_objids(mdd->mdd_obd_dev, lmm);
-}
-
-int mdd_declare_lov_objid_update(const struct lu_env *env,
- struct mdd_device *mdd,
- struct thandle *handle)
-{
- struct obd_device *obd = mdd2obd_dev(mdd);
- int size;
-
- /* in prepare we create local files */
- if (unlikely(mdd->mdd_capa == NULL))
- return 0;
-
- /* XXX: this is a temporary solution to declare llog changes
- * will be fixed in 2.3 with new llog implementation */
-
- size = obd->u.mds.mds_lov_desc.ld_tgt_count * sizeof(obd_id);
- return dt_declare_record_write(env, mdd->mdd_capa, size, 0, handle);
-}
-
-void mdd_lov_objid_update(struct mdd_device *mdd, struct lov_mds_md *lmm)
-{
- /* copy mds_lov code is using wrong layer */
- mds_lov_update_objids(mdd->mdd_obd_dev, lmm);
-}
-
-void mdd_lov_create_finish(const struct lu_env *env, struct mdd_device *mdd,
- struct lov_mds_md *lmm, int lmm_size,
- const struct md_op_spec *spec)
-{
- if (lmm && !spec->no_create)
- OBD_FREE_LARGE(lmm, lmm_size);
-}
-
-int mdd_lov_create(const struct lu_env *env, struct mdd_device *mdd,
- struct mdd_object *parent, struct mdd_object *child,
- struct lov_mds_md **lmm, int *lmm_size,
- const struct md_op_spec *spec, struct md_attr *ma)
-{
- struct obd_device *obd = mdd2obd_dev(mdd);
- struct obd_export *lov_exp = obd->u.mds.mds_lov_exp;
- struct lu_site *site = mdd2lu_dev(mdd)->ld_site;
- struct obdo *oa;
- struct lov_stripe_md *lsm = NULL;
- const void *eadata = spec->u.sp_ea.eadata;
- __u64 create_flags = spec->sp_cr_flags;
- struct obd_trans_info *oti = &mdd_env_info(env)->mti_oti;
- struct lu_attr *la = &ma->ma_attr;
- int rc = 0;
- ENTRY;
-
- if (!md_should_create(create_flags)) {
- *lmm_size = 0;
- RETURN(0);
- }
- oti_init(oti, NULL);
-
- /* replay case, has objects already, only get lov from eadata */
- if (spec->no_create != 0) {
- *lmm = (struct lov_mds_md *)spec->u.sp_ea.eadata;
- *lmm_size = spec->u.sp_ea.eadatalen;
- if (*lmm_size == lov_mds_md_size((*lmm)->lmm_stripe_count,
- (*lmm)->lmm_magic)) {
- RETURN(0);
- } else {
- CERROR("incorrect lsm received during recovery\n");
- RETURN(-EPROTO);
- }
- }
-
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_ALLOC_OBDO))
- GOTO(out_ids, rc = -ENOMEM);
-
- LASSERT(lov_exp != NULL);
- oa = &mdd_env_info(env)->mti_oa;
-
- oa->o_uid = 0; /* must have 0 uid / gid on OST */
- oa->o_gid = 0;
- oa->o_seq = mdt_to_obd_objseq(lu_site2md(site)->ms_node_id);
- oa->o_mode = S_IFREG | 0600;
- oa->o_id = fid_ver_oid(mdd_object_fid(child));
- oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLFLAGS |
- OBD_MD_FLMODE | OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLGROUP;
- oa->o_size = 0;
-
- if (!(create_flags & MDS_OPEN_HAS_OBJS)) {
- if (create_flags & MDS_OPEN_HAS_EA) {
- LASSERT(eadata != NULL);
- rc = obd_iocontrol(OBD_IOC_LOV_SETSTRIPE, lov_exp,
- 0, &lsm, (void*)eadata);
- if (rc)
- GOTO(out_oti, rc);
- } else {
- /* get lov ea from parent and set to lov */
- struct lov_mds_md *_lmm;
- int _lmm_size;
-
- LASSERT(parent != NULL);
-
- _lmm_size = mdd_lov_mdsize(env, mdd);
- _lmm = mdd_max_lmm_get(env, mdd);
-
- if (_lmm == NULL)
- GOTO(out_oti, rc = -ENOMEM);
-
- rc = mdd_get_md_locked(env, parent, _lmm,
- &_lmm_size,
- XATTR_NAME_LOV);
- if (rc > 0)
- rc = obd_iocontrol(OBD_IOC_LOV_SETSTRIPE,
- lov_exp, *lmm_size,
- &lsm, _lmm);
-
- if (rc)
- GOTO(out_oti, rc);
- }
-
- OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_OPEN_WAIT_CREATE, 10);
- rc = obd_create(lov_exp, oa, &lsm, oti);
- if (rc) {
- if (rc > 0) {
- CERROR("Create error for "DFID": %d\n",
- PFID(mdo2fid(child)), rc);
- rc = -EIO;
- }
- GOTO(out_oti, rc);
- }
-
- if (ma->ma_valid & MA_LAY_GEN)
- /* If we already have a lsm, the file is not new and we
- * are about to change the layout, so we have to bump
- * the generation. It is worth noting that old versions
- * will be confused by a non-zero gen, that's why
- * OBD_INCOMPAT_LMM_VER has been introduced */
- lsm->lsm_layout_gen = ma->ma_layout_gen + 1;
- else
- /* Start with a null generation for backward
- * compatiblity with old versions */
- lsm->lsm_layout_gen = 0;
-
- LASSERT_SEQ_IS_MDT(lsm->lsm_object_seq);
- } else {
- LASSERT(eadata != NULL);
- rc = obd_iocontrol(OBD_IOC_LOV_SETEA, lov_exp, 0, &lsm,
- (void*)eadata);
- if (rc)
- GOTO(out_oti, rc);
-
- if (ma->ma_valid & MA_LAY_GEN)
- lsm->lsm_layout_gen = ma->ma_layout_gen;
- else
- lsm->lsm_layout_gen = 0;
- }
-
- lsm->lsm_object_id = fid_ver_oid(mdd_object_fid(child));
- lsm->lsm_object_seq = fid_seq(mdd_object_fid(child));
- /*
- * Sometimes, we may truncate some object(without lsm) then open it
- * (with write flags), so creating lsm above. The Nonzero(truncated)
- * size should tell ost, since size attr is in charge by OST.
- */
- if (la->la_size && la->la_valid & LA_SIZE) {
- struct obd_info *oinfo = &mdd_env_info(env)->mti_oi;
-
- memset(oinfo, 0, sizeof(*oinfo));
-
- /* When setting attr to ost, FLBKSZ is not needed. */
- oa->o_valid &= ~OBD_MD_FLBLKSZ;
- obdo_from_la(oa, la, LA_TYPE | LA_ATIME | LA_MTIME |
- LA_CTIME | LA_SIZE);
- /*
- * XXX: Pack lustre id to OST, in OST, it will be packed by
- * filter_fid, but can not see what is the usages. So just pack
- * o_seq o_ver here, maybe fix it after this cycle.
- */
- obdo_set_parent_fid(oa, mdd_object_fid(child));
- oinfo->oi_oa = oa;
- oinfo->oi_md = lsm;
- oinfo->oi_capa = NULL;
- oinfo->oi_policy.l_extent.start = la->la_size;
- oinfo->oi_policy.l_extent.end = OBD_OBJECT_EOF;
-
- rc = obd_punch_rqset(lov_exp, oinfo, oti);
- if (rc) {
- CERROR("Error setting attrs for "DFID": rc %d\n",
- PFID(mdo2fid(child)), rc);
- if (rc > 0) {
- CERROR("obd_setattr for "DFID" rc %d\n",
- PFID(mdo2fid(child)), rc);
- rc = -EIO;
- }
- GOTO(out_oti, rc);
- }
- }
- /* blksize should be changed after create data object */
- la->la_valid |= LA_BLKSIZE;
- la->la_blksize = oa->o_blksize;
- *lmm = NULL;
- rc = obd_packmd(lov_exp, lmm, lsm);
- if (rc < 0) {
- CERROR("Cannot pack lsm, err = %d\n", rc);
- GOTO(out_oti, rc);
- }
- if (mdd_lov_objid_prepare(mdd, *lmm) != 0) {
- CERROR("Not have memory for update objid\n");
- OBD_FREE(*lmm, rc);
- *lmm = NULL;
- GOTO(out_oti, rc = -ENOMEM);
- }
- *lmm_size = rc;
- rc = 0;
- EXIT;
-out_oti:
- oti_free_cookies(oti);
-out_ids:
- if (lsm)
- obd_free_memmd(lov_exp, &lsm);
-
- return rc;
-}
-
-/*
- * used when destroying orphans and from mds_reint_unlink() when MDS wants to
- * destroy objects on OSS.
- */
-int mdd_lovobj_unlink(const struct lu_env *env, struct mdd_device *mdd,
- struct mdd_object *obj, struct lu_attr *la,
- struct lov_mds_md *lmm, int lmm_size,
- struct llog_cookie *logcookies,
- int log_unlink)
-{
- struct obd_device *obd = mdd2obd_dev(mdd);
- struct obd_export *lov_exp = obd->u.mds.mds_lov_exp;
- struct lov_stripe_md *lsm = NULL;
- struct obd_trans_info *oti = &mdd_env_info(env)->mti_oti;
- struct obdo *oa = &mdd_env_info(env)->mti_oa;
- struct lu_site *site = mdd2lu_dev(mdd)->ld_site;
- int rc;
- ENTRY;
-
- if (lmm_size == 0)
- RETURN(0);
-
- rc = obd_unpackmd(lov_exp, &lsm, lmm, lmm_size);
- if (rc < 0) {
- CERROR("Error unpack md %p\n", lmm);
- RETURN(rc);
- } else {
- LASSERT(rc >= sizeof(*lsm));
- rc = 0;
- }
-
- oa->o_id = lsm->lsm_object_id;
- oa->o_seq = mdt_to_obd_objseq(lu_site2md(site)->ms_node_id);
- oa->o_mode = la->la_mode & S_IFMT;
- oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLGROUP;
-
- oti_init(oti, NULL);
- if (log_unlink && logcookies) {
- oa->o_valid |= OBD_MD_FLCOOKIE;
- oti->oti_logcookies = logcookies;
- }
-
- CDEBUG(D_INFO, "destroying OSS object "LPU64":"LPU64"\n", oa->o_seq,
- oa->o_id);
-
- rc = obd_destroy(lov_exp, oa, lsm, oti, NULL, NULL);
-
- obd_free_memmd(lov_exp, &lsm);
- RETURN(rc);
-}
-
-/*
- * called with obj locked.
- */
-int mdd_lov_destroy(const struct lu_env *env, struct mdd_device *mdd,
- struct mdd_object *obj, struct lu_attr *la)
-{
- struct md_attr *ma = &mdd_env_info(env)->mti_ma;
- int rc;
- ENTRY;
-
- LASSERT(mdd_write_locked(env, obj) != 0);
-
- if (unlikely(!S_ISREG(mdd_object_type(obj))))
- RETURN(0);
-
- if (unlikely(la->la_nlink != 0)) {
- CWARN("Attempt to destroy OSS object when nlink == %d\n",
- la->la_nlink);
- RETURN(0);
- }
-
- ma->ma_lmm_size = mdd_lov_mdsize(env, mdd);
- ma->ma_lmm = mdd_max_lmm_get(env, mdd);
- ma->ma_cookie_size = mdd_lov_cookiesize(env, mdd);
- ma->ma_cookie = mdd_max_cookie_get(env, mdd);
- if (ma->ma_lmm == NULL || ma->ma_cookie == NULL)
- RETURN(rc = -ENOMEM);
-
- /* get lov ea */
-
- rc = mdd_get_md(env, obj, ma->ma_lmm, &ma->ma_lmm_size,
- XATTR_NAME_LOV);
-
- if (rc <= 0) {
- CWARN("Get lov ea failed for "DFID" rc = %d\n",
- PFID(mdo2fid(obj)), rc);
- if (rc == 0)
- rc = -ENOENT;
- RETURN(rc);
- }
-
- ma->ma_valid = MA_LOV;
-
- rc = mdd_unlink_log(env, mdd, obj, ma);
- if (rc) {
- CWARN("mds unlink log for "DFID" failed: %d\n",
- PFID(mdo2fid(obj)), rc);
- RETURN(rc);
- }
-
- if (ma->ma_valid & MA_COOKIE)
- rc = mdd_lovobj_unlink(env, mdd, obj, la,
- ma->ma_lmm, ma->ma_lmm_size,
- ma->ma_cookie, 1);
- RETURN(rc);
-}
-
-int mdd_declare_unlink_log(const struct lu_env *env, struct mdd_object *obj,
- struct md_attr *ma, struct thandle *handle)
-{
- struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
- int rc, i;
- __u16 stripe;
-
- LASSERT(obj);
- LASSERT(ma);
-
- if (!S_ISREG(lu_object_attr(&obj->mod_obj.mo_lu)))
- return 0;
-
- rc = mdd_lmm_get_locked(env, obj, ma);
- if (rc || !(ma->ma_valid & MA_LOV))
- return rc;
-
- LASSERT(ma->ma_lmm);
- if (le32_to_cpu(ma->ma_lmm->lmm_magic) != LOV_MAGIC_V1 &&
- le32_to_cpu(ma->ma_lmm->lmm_magic) != LOV_MAGIC_V3) {
- CERROR("%s: invalid LOV_MAGIC %08x on object "DFID"\n",
- mdd->mdd_obd_dev->obd_name,
- le32_to_cpu(ma->ma_lmm->lmm_magic),
- PFID(lu_object_fid(&obj->mod_obj.mo_lu)));
- return -EINVAL;
- }
-
- stripe = le16_to_cpu(ma->ma_lmm->lmm_stripe_count);
- if (stripe == LOV_ALL_STRIPES);
- stripe = mdd2obd_dev(mdd)->u.mds.mds_lov_desc.ld_tgt_count;
-
- for (i = 0; i < stripe; i++) {
- rc = mdd_declare_llog_record(env, mdd,
- sizeof(struct llog_unlink_rec),
- handle);
- if (rc)
- return rc;
- }
-
- return rc;
-}
-
-int mdd_unlink_log(const struct lu_env *env, struct mdd_device *mdd,
- struct mdd_object *mdd_cobj, struct md_attr *ma)
-{
- LASSERT(ma->ma_valid & MA_LOV);
-
- if ((ma->ma_cookie_size > 0) &&
- (mds_log_op_unlink(mdd2obd_dev(mdd), ma->ma_lmm, ma->ma_lmm_size,
- ma->ma_cookie, ma->ma_cookie_size) > 0)) {
- CDEBUG(D_HA, "DEBUG: unlink log is added for object "DFID"\n",
- PFID(mdd_object_fid(mdd_cobj)));
- ma->ma_valid |= MA_COOKIE;
- }
- return 0;
-}
-
-int mdd_log_op_setattr(struct obd_device *obd, __u32 uid, __u32 gid,
- struct lov_mds_md *lmm, int lmm_size,
- struct llog_cookie *logcookies, int cookies_size)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct lov_stripe_md *lsm = NULL;
- struct llog_setattr64_rec *lsr;
- struct llog_ctxt *ctxt;
- int rc;
- ENTRY;
-
- if (IS_ERR(mds->mds_lov_obd))
- RETURN(PTR_ERR(mds->mds_lov_obd));
-
- rc = obd_unpackmd(mds->mds_lov_exp, &lsm, lmm, lmm_size);
- if (rc < 0)
- RETURN(rc);
-
- OBD_ALLOC(lsr, sizeof(*lsr));
- if (!lsr)
- GOTO(out, rc = -ENOMEM);
-
- /* prepare setattr log record */
- lsr->lsr_hdr.lrh_len = lsr->lsr_tail.lrt_len = sizeof(*lsr);
- lsr->lsr_hdr.lrh_type = MDS_SETATTR64_REC;
- lsr->lsr_uid = uid;
- lsr->lsr_gid = gid;
-
- /* write setattr log */
- ctxt = llog_get_context(obd, LLOG_MDS_OST_ORIG_CTXT);
- rc = llog_add(ctxt, &lsr->lsr_hdr, lsm, logcookies,
- cookies_size / sizeof(struct llog_cookie));
-
- llog_ctxt_put(ctxt);
-
- OBD_FREE(lsr, sizeof(*lsr));
- out:
- obd_free_memmd(mds->mds_lov_exp, &lsm);
- RETURN(rc);
-}
-
-int mdd_setattr_log(const struct lu_env *env, struct mdd_device *mdd,
- const struct md_attr *ma,
- struct lov_mds_md *lmm, int lmm_size,
- struct llog_cookie *logcookies, int cookies_size)
-{
- struct obd_device *obd = mdd2obd_dev(mdd);
-
- /* journal chown/chgrp in llog, just like unlink */
- if (lmm_size > 0) {
- CDEBUG(D_INFO, "setattr llog for uid/gid=%lu/%lu\n",
- (unsigned long)ma->ma_attr.la_uid,
- (unsigned long)ma->ma_attr.la_gid);
- return mdd_log_op_setattr(obd, ma->ma_attr.la_uid,
- ma->ma_attr.la_gid, lmm,
- lmm_size, logcookies,
- cookies_size);
- } else
- return 0;
-}
-
-static int mdd_osc_setattr_async(struct obd_device *obd, __u32 uid, __u32 gid,
- struct lov_mds_md *lmm, int lmm_size,
- struct llog_cookie *logcookies, const struct lu_fid *parent,
- struct obd_capa *oc)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct obd_trans_info oti = { 0 };
- struct obd_info oinfo = { { { 0 } } };
- int rc;
- ENTRY;
-
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_OST_SETATTR))
- RETURN(0);
-
- /* first get memory EA */
- OBDO_ALLOC(oinfo.oi_oa);
- if (!oinfo.oi_oa)
- RETURN(-ENOMEM);
-
- LASSERT(lmm);
-
- rc = obd_unpackmd(mds->mds_lov_exp, &oinfo.oi_md, lmm, lmm_size);
- if (rc < 0) {
- CERROR("Error unpack md %p for obj "DFID"\n", lmm,
- PFID(parent));
- GOTO(out, rc);
- }
-
- /* then fill oa */
- oinfo.oi_oa->o_uid = uid;
- oinfo.oi_oa->o_gid = gid;
- oinfo.oi_oa->o_id = oinfo.oi_md->lsm_object_id;
- oinfo.oi_oa->o_seq = oinfo.oi_md->lsm_object_seq;
- oinfo.oi_oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP |
- OBD_MD_FLUID | OBD_MD_FLGID;
- if (logcookies) {
- oinfo.oi_oa->o_valid |= OBD_MD_FLCOOKIE;
- oti.oti_logcookies = logcookies;
- }
-
- obdo_set_parent_fid(oinfo.oi_oa, parent);
- oinfo.oi_capa = oc;
-
- /* do async setattr from mds to ost not waiting for responses. */
- rc = obd_setattr_async(mds->mds_lov_exp, &oinfo, &oti, NULL);
- if (rc)
- CDEBUG(D_INODE, "mds to ost setattr objid 0x"LPX64
- " on ost error %d\n", oinfo.oi_md->lsm_object_id, rc);
-out:
- if (oinfo.oi_md)
- obd_free_memmd(mds->mds_lov_exp, &oinfo.oi_md);
- OBDO_FREE(oinfo.oi_oa);
- RETURN(rc);
-}
-
-int mdd_lov_setattr_async(const struct lu_env *env, struct mdd_object *obj,
- struct lov_mds_md *lmm, int lmm_size,
- struct llog_cookie *logcookies)
-{
- struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
- struct obd_device *obd = mdd2obd_dev(mdd);
- struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
- const struct lu_fid *fid = mdd_object_fid(obj);
- int rc = 0;
- ENTRY;
-
- mdd_read_lock(env, obj, MOR_TGT_CHILD);
- rc = mdo_attr_get(env, obj, tmp_la, mdd_object_capa(env, obj));
- mdd_read_unlock(env, obj);
- if (rc)
- RETURN(rc);
-
- rc = mdd_osc_setattr_async(obd, tmp_la->la_uid, tmp_la->la_gid, lmm,
- lmm_size, logcookies, fid, NULL);
- RETURN(rc);
-}
-
-static int grouplock_blocking_ast(struct ldlm_lock *lock,
- struct ldlm_lock_desc *desc,
- void *data, int flag)
-{
- struct md_attr *ma = data;
- struct lustre_handle lockh;
- int rc = 0;
- ENTRY;
-
- switch (flag)
- {
- case LDLM_CB_BLOCKING :
- /* lock is canceled */
- CDEBUG(D_DLMTRACE, "Lock %p is canceled\n", lock);
-
- ldlm_lock2handle(lock, &lockh);
- rc = ldlm_cli_cancel(&lockh);
-
- break;
- case LDLM_CB_CANCELING :
- CDEBUG(D_DLMTRACE,
- "Lock %p has been canceled, do cleaning\n",
- lock);
-
- if (ma && ma->ma_som)
- OBD_FREE_PTR(ma->ma_som);
- if (ma)
- OBD_FREE_PTR(ma);
- break;
- default:
- LBUG();
- }
- RETURN(rc);
-}
-
-static int grouplock_glimpse_ast(struct ldlm_lock *lock, void *data)
-{
- struct ptlrpc_request *req = data;
- struct ost_lvb *lvb;
- int rc;
- struct md_attr *ma;
- ENTRY;
-
- ma = lock->l_ast_data;
-
- req_capsule_extend(&req->rq_pill, &RQF_LDLM_GL_CALLBACK);
- req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER,
- sizeof(*lvb));
- rc = req_capsule_server_pack(&req->rq_pill);
- if (rc) {
- CERROR("failed pack reply: %d\n", rc);
- GOTO(out, rc);
- }
-
- lvb = req_capsule_server_get(&req->rq_pill, &RMF_DLM_LVB);
-
- if ((ma) && (ma->ma_valid & MA_SOM)) {
- lvb->lvb_size = ma->ma_som->msd_size;
- lvb->lvb_blocks = ma->ma_som->msd_blocks;
- } else if ((ma) && (ma->ma_valid & MA_INODE)) {
- lvb->lvb_size = ma->ma_attr.la_size;
- lvb->lvb_blocks = ma->ma_attr.la_blocks;
- } else {
- lvb->lvb_size = 0;
- rc = -ELDLM_NO_LOCK_DATA;
- }
-
- EXIT;
-out:
- if (rc == -ELDLM_NO_LOCK_DATA)
- lustre_pack_reply(req, 1, NULL, NULL);
-
- req->rq_status = rc;
- return rc;
-}
-
-int mdd_file_lock(const struct lu_env *env, struct md_object *obj,
- struct lov_mds_md *lmm, struct ldlm_extent *extent,
- struct lustre_handle *lockh)
-{
- struct ldlm_enqueue_info einfo = { 0 };
- struct obd_info oinfo = { { { 0 } } };
- struct obd_device *obd;
- struct obd_export *lov_exp;
- struct lov_stripe_md *lsm = NULL;
- struct md_attr *ma = NULL;
- int rc;
- ENTRY;
-
- obd = mdo2mdd(obj)->mdd_obd_dev;
- lov_exp = obd->u.mds.mds_lov_exp;
-
- obd_unpackmd(lov_exp, &lsm, lmm,
- lov_mds_md_size(lmm->lmm_stripe_count, lmm->lmm_magic));
-
- OBD_ALLOC_PTR(ma);
- if (ma == NULL)
- GOTO(out, rc = -ENOMEM);
-
- OBD_ALLOC_PTR(ma->ma_som);
- if (ma->ma_som == NULL)
- GOTO(out, rc = -ENOMEM);
-
- ma->ma_need = MA_SOM | MA_INODE;
- mo_attr_get(env, obj, ma);
-
- einfo.ei_type = LDLM_EXTENT;
- einfo.ei_mode = LCK_GROUP;
- einfo.ei_cb_bl = grouplock_blocking_ast;
- einfo.ei_cb_cp = ldlm_completion_ast;
- einfo.ei_cb_gl = grouplock_glimpse_ast;
-
- if (ma->ma_valid & (MA_SOM | MA_INODE))
- einfo.ei_cbdata = ma;
- else
- einfo.ei_cbdata = NULL;
-
- memset(&oinfo.oi_policy, 0, sizeof(oinfo.oi_policy));
- oinfo.oi_policy.l_extent = *extent;
- oinfo.oi_lockh = lockh;
- oinfo.oi_md = lsm;
- oinfo.oi_flags = 0;
-
- rc = obd_enqueue(lov_exp, &oinfo, &einfo, NULL);
- /* ei_cbdata is used as a free flag at exit */
- if (rc)
- einfo.ei_cbdata = NULL;
-
- obd_unpackmd(lov_exp, &lsm, NULL, 0);
-
-out:
- /* ma is freed if not used as callback data */
- if ((einfo.ei_cbdata == NULL) && ma && ma->ma_som)
- OBD_FREE_PTR(ma->ma_som);
- if ((einfo.ei_cbdata == NULL) && ma)
- OBD_FREE_PTR(ma);
-
- RETURN(rc);
-}
-
-int mdd_file_unlock(const struct lu_env *env, struct md_object *obj,
- struct lov_mds_md *lmm, struct lustre_handle *lockh)
-{
- struct obd_device *obd;
- struct obd_export *lov_exp;
- struct lov_stripe_md *lsm = NULL;
- int rc;
- ENTRY;
-
- LASSERT(lustre_handle_is_used(lockh));
-
- obd = mdo2mdd(obj)->mdd_obd_dev;
- lov_exp = obd->u.mds.mds_lov_exp;
-
- obd_unpackmd(lov_exp, &lsm, lmm,
- lov_mds_md_size(lmm->lmm_stripe_count, lmm->lmm_magic));
-
- rc = obd_cancel(lov_exp, lsm, LCK_GROUP, lockh);
-
- obd_unpackmd(lov_exp, &lsm, NULL, 0);
-
- RETURN(rc);
-}
-
-/* file lov is in ma->ma_lmm */
-/* requested lov is in info->mti_spec.u.sp_ea.eadata */
-int mdd_lum_lmm_cmp(const struct lu_env *env, struct md_object *cobj,
- const struct md_op_spec *spec, struct md_attr *ma)
-{
- struct obd_export *lov_exp =
- mdd2obd_dev(mdo2mdd(cobj))->u.mds.mds_lov_exp;
- struct lov_mds_md *lmm = ma->ma_lmm;
- struct lov_user_md_v3 *lum =
- (struct lov_user_md_v3 *)(spec->u.sp_ea.eadata);
- struct lov_stripe_md *lsm = NULL;
- int lmm_magic, rc;
- ENTRY;
-
- rc = obd_unpackmd(lov_exp, &lsm, lmm,
- lov_mds_md_size(lmm->lmm_stripe_count,
- lmm->lmm_magic));
- ma->ma_layout_gen = lsm->lsm_layout_gen;
- ma->ma_valid |= MA_LAY_GEN;
-
- rc = lov_lum_swab_if_needed(lum, &lmm_magic, NULL);
- if (rc)
- GOTO(out, rc);
-
- rc = lov_lum_lsm_cmp((struct lov_user_md *)lum, lsm);
- if (rc)
- GOTO(out, rc); /* keep GOTO to for traces */
-
-out:
- /* free lsm */
- obd_unpackmd(lov_exp, &lsm, NULL, 0);
- return rc;
-}