{
LASSERT(mfd != NULL);
- CDEBUG(D_HA, DFID "Change mfd mode 0x%Lx->0x%Lx\n",
+ CDEBUG(D_HA, DFID " Change mfd mode "LPO64" -> "LPO64".\n",
PFID(mdt_object_fid(mfd->mfd_object)), mfd->mfd_mode, mode);
mfd->mfd_mode = mode;
isreg = S_ISREG(la->la_mode);
isdir = S_ISDIR(la->la_mode);
- if (isreg && !(ma->ma_valid & MA_LOV)) {
+ if (isreg && !(ma->ma_valid & MA_LOV) && !(flags & MDS_OPEN_RELEASE)) {
/*
* No EA, check whether it is will set regEA and dirEA since in
* above attr get, these size might be zero, so reset it, to
RETURN_EXIT;
}
+/**
+ * Check release is permitted for the current HSM flags.
+ */
+static bool mdt_hsm_release_allow(struct md_attr *ma)
+{
+ if (!(ma->ma_valid & MA_HSM))
+ return false;
+
+ if (ma->ma_hsm.mh_flags & (HS_DIRTY|HS_NORELEASE|HS_LOST))
+ return false;
+
+ if (!(ma->ma_hsm.mh_flags & HS_ARCHIVED))
+ return false;
+
+ return true;
+}
+
int mdt_open_by_fid_lock(struct mdt_thread_info *info, struct ldlm_reply *rep,
struct mdt_lock_handle *lhc)
{
mdt_set_disposition(info, rep, (DISP_IT_EXECD | DISP_LOOKUP_EXECD));
+ if (flags & MDS_OPEN_RELEASE)
+ ma->ma_need |= MA_HSM;
rc = mdt_attr_get_complex(info, o, ma);
- if (rc)
- GOTO(out, rc);
+ if (rc)
+ GOTO(out, rc);
+
+ /* If a release request, check file flags are fine and ask for an
+ * exclusive open access. */
+ if (flags & MDS_OPEN_RELEASE && !mdt_hsm_release_allow(ma))
+ GOTO(out, rc = -EPERM);
rc = mdt_object_open_lock(info, o, lhc, &ibits);
if (rc)
}
if (!(create_flags & MDS_OPEN_CREAT))
GOTO(out_parent, result);
+ if (exp_connect_flags(req->rq_export) & OBD_CONNECT_RDONLY)
+ GOTO(out_parent, result = -EROFS);
*child_fid = *info->mti_rr.rr_fid2;
LASSERTF(fid_is_sane(child_fid), "fid="DFID"\n",
PFID(child_fid));
result = rc;
/* openlock will be released if mdt_finish_open failed */
mdt_clear_disposition(info, ldlm_rep, DISP_OPEN_LOCK);
+
+ if (created && create_flags & MDS_OPEN_VOLATILE) {
+ CERROR("%s: cannot open volatile file "DFID", orphan "
+ "file will be left in PENDING directory until "
+ "next reboot, rc = %d\n", mdt_obd_name(mdt),
+ PFID(mdt_object_fid(child)), rc);
+ GOTO(out_child_unlock, result);
+ }
+
if (created) {
ma->ma_need = 0;
ma->ma_valid = 0;
return result;
}
+/**
+ * Create an orphan object use local root.
+ */
+static struct mdt_object *mdt_orphan_open(struct mdt_thread_info *info,
+ struct mdt_device *mdt,
+ const struct lu_fid *fid,
+ struct md_attr *attr, fmode_t fmode)
+{
+ const struct lu_env *env = info->mti_env;
+ struct md_op_spec *spec = &info->mti_spec;
+ struct lu_fid *rootfid = &info->mti_tmp_fid1;
+ struct mdt_object *obj = NULL;
+ struct mdt_object *local_root;
+ static const char name[] = "i_am_nobody";
+ struct lu_name *lname;
+ int rc;
+ ENTRY;
+
+ rc = dt_root_get(env, mdt->mdt_bottom, rootfid);
+ if (rc != 0)
+ RETURN(ERR_PTR(rc));
+
+ local_root = mdt_object_find(env, mdt, rootfid);
+ if (IS_ERR(local_root))
+ RETURN(local_root);
+
+ obj = mdt_object_new(env, mdt, fid);
+ if (IS_ERR(obj))
+ GOTO(out, rc = PTR_ERR(obj));
+
+ spec->sp_cr_lookup = 0;
+ spec->sp_feat = &dt_directory_features;
+ spec->sp_cr_mode = MDL_MINMODE; /* no lock */
+ spec->sp_cr_flags = MDS_OPEN_VOLATILE | fmode;
+ if (attr->ma_valid & MA_LOV) {
+ spec->u.sp_ea.eadata = attr->ma_lmm;
+ spec->u.sp_ea.eadatalen = attr->ma_lmm_size;
+ spec->sp_cr_flags |= MDS_OPEN_HAS_EA;
+ } else {
+ spec->sp_cr_flags |= MDS_OPEN_DELAY_CREATE;
+ }
+
+ lname = mdt_name(env, (char *)name, sizeof(name) - 1);
+ rc = mdo_create(env, mdt_object_child(local_root), lname,
+ mdt_object_child(obj), spec, attr);
+ if (rc == 0) {
+ rc = mo_open(env, mdt_object_child(obj), MDS_OPEN_CREATED);
+ if (rc < 0)
+ CERROR("%s: cannot open volatile file "DFID", orphan "
+ "file will be left in PENDING directory until "
+ "next reboot, rc = %d\n", mdt_obd_name(mdt),
+ PFID(fid), rc);
+ }
+ EXIT;
+
+out:
+ if (rc < 0) {
+ if (!IS_ERR(obj))
+ mdt_object_put(env, obj);
+ obj = ERR_PTR(rc);
+ }
+ mdt_object_put(env, local_root);
+ return obj;
+}
+
+static int mdt_hsm_release(struct mdt_thread_info *info, struct mdt_object *o,
+ struct md_attr *ma)
+{
+ struct mdt_lock_handle *lh = &info->mti_lh[MDT_LH_LAYOUT];
+ struct close_data *data;
+ struct ldlm_lock *lease;
+ struct mdt_object *orphan;
+ struct md_attr *orp_ma;
+ struct lu_buf *buf;
+ bool lease_broken;
+ int rc;
+ int rc2;
+ ENTRY;
+
+ data = req_capsule_client_get(info->mti_pill, &RMF_CLOSE_DATA);
+ if (data == NULL)
+ RETURN(-EPROTO);
+
+ lease = ldlm_handle2lock(&data->cd_handle);
+ if (lease == NULL)
+ RETURN(-ESTALE);
+
+ /* try to hold open_sem so that nobody else can open the file */
+ if (!down_write_trylock(&o->mot_open_sem)) {
+ ldlm_lock_cancel(lease);
+ LDLM_LOCK_PUT(lease);
+ RETURN(-EBUSY);
+ }
+
+ /* Check if the lease open lease has already canceled */
+ lock_res_and_lock(lease);
+ lease_broken = ldlm_is_cancel(lease);
+ unlock_res_and_lock(lease);
+
+ LDLM_DEBUG(lease, DFID " lease broken? %d\n",
+ PFID(mdt_object_fid(o)), lease_broken);
+
+ /* Cancel server side lease. Client side counterpart should
+ * have been cancelled. It's okay to cancel it now as we've
+ * held mot_open_sem. */
+ ldlm_lock_cancel(lease);
+ LDLM_LOCK_PUT(lease);
+
+ if (lease_broken) /* don't perform release task */
+ GOTO(out_unlock, rc = -ESTALE);
+
+ if (fid_is_zero(&data->cd_fid) || !fid_is_sane(&data->cd_fid))
+ GOTO(out_unlock, rc = -EINVAL);
+
+ /* ma_need was set before but it seems fine to change it in order to
+ * avoid modifying the one from RPC */
+ ma->ma_need = MA_HSM | MA_LOV;
+ rc = mdt_attr_get_complex(info, o, ma);
+ if (rc != 0)
+ GOTO(out_unlock, rc);
+
+ if (!mdt_hsm_release_allow(ma))
+ GOTO(out_unlock, rc = -EPERM);
+
+ /* already released? */
+ if (ma->ma_hsm.mh_flags & HS_RELEASED)
+ GOTO(out_unlock, rc = 0);
+
+ /* Compare on-disk and packed data_version */
+ if (data->cd_data_version != ma->ma_hsm.mh_arch_ver) {
+ CDEBUG(D_HSM, DFID" data_version mismatches: packed="LPU64
+ " and on-disk="LPU64"\n", PFID(mdt_object_fid(o)),
+ data->cd_data_version, ma->ma_hsm.mh_arch_ver);
+ /* XXX: Enable this line when hsm_archive is operational!
+ GOTO(out_unlock, rc = -EPERM);
+ */
+ }
+
+ ma->ma_valid = MA_INODE;
+ ma->ma_attr.la_valid &= LA_SIZE | LA_MTIME | LA_ATIME;
+ rc = mo_attr_set(info->mti_env, mdt_object_child(o), ma);
+ if (rc < 0)
+ GOTO(out_unlock, rc);
+
+ if (!(ma->ma_valid & MA_LOV)) {
+ /* Even empty file are released */
+ memset(ma->ma_lmm, 0, sizeof(*ma->ma_lmm));
+ ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V1_DEF);
+ ma->ma_lmm->lmm_pattern = cpu_to_le32(LOV_PATTERN_RAID0);
+ ma->ma_lmm->lmm_stripe_size = cpu_to_le32(LOV_MIN_STRIPE_SIZE);
+ ma->ma_valid |= MA_LOV;
+ } else {
+ /* Magic must be LOV_MAGIC_Vx_DEF otherwise LOD will interpret
+ * ma_lmm as lov_user_md, then it will be confused by union of
+ * layout_gen and stripe_offset. */
+ if (le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V1)
+ ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V1_DEF);
+ else if (le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V3)
+ ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V3_DEF);
+ else
+ GOTO(out_unlock, rc = -EINVAL);
+ }
+
+ /* Set file as released */
+ ma->ma_lmm->lmm_pattern |= cpu_to_le32(LOV_PATTERN_F_RELEASED);
+
+ /* Hopefully it's not used in this call path */
+ orp_ma = &info->mti_u.som.attr;
+ orp_ma->ma_valid = MA_INODE | MA_LOV;
+ orp_ma->ma_attr.la_mode = S_IFREG;
+ orp_ma->ma_attr.la_valid = LA_MODE;
+ orp_ma->ma_lmm = ma->ma_lmm;
+ orp_ma->ma_lmm_size = ma->ma_lmm_size;
+ orphan = mdt_orphan_open(info, info->mti_mdt, &data->cd_fid, orp_ma,
+ FMODE_WRITE);
+ if (IS_ERR(orphan)) {
+ CERROR("%s: cannot open orphan file "DFID": rc = %ld\n",
+ mdt_obd_name(info->mti_mdt), PFID(&data->cd_fid),
+ PTR_ERR(orphan));
+ GOTO(out_unlock, rc = PTR_ERR(orphan));
+ }
+
+ /* Set up HSM attribute for orphan object */
+ CLASSERT(sizeof(struct hsm_attrs) <= sizeof(info->mti_xattr_buf));
+ buf = &info->mti_buf;
+ buf->lb_buf = info->mti_xattr_buf;
+ buf->lb_len = sizeof(struct hsm_attrs);
+ ma->ma_hsm.mh_flags |= HS_RELEASED;
+ lustre_hsm2buf(buf->lb_buf, &ma->ma_hsm);
+ ma->ma_hsm.mh_flags &= ~HS_RELEASED;
+ rc = mo_xattr_set(info->mti_env, mdt_object_child(orphan), buf,
+ XATTR_NAME_HSM, 0);
+ if (rc < 0)
+ GOTO(out_close, rc);
+
+ mdt_lock_reg_init(lh, LCK_EX);
+ rc = mdt_object_lock(info, o, lh, MDS_INODELOCK_LAYOUT, MDT_LOCAL_LOCK);
+ if (rc == 0) {
+ /* Swap layout with orphan object */
+ rc = mo_swap_layouts(info->mti_env, mdt_object_child(o),
+ mdt_object_child(orphan),
+ SWAP_LAYOUTS_MDS_HSM);
+
+ /* Release exclusive LL */
+ mdt_object_unlock(info, o, lh, 1);
+ }
+ EXIT;
+
+out_close:
+ /* Close orphan object anyway */
+ rc2 = mo_close(info->mti_env, mdt_object_child(orphan), orp_ma,
+ FMODE_WRITE);
+ if (rc2 < 0)
+ CERROR("%s: error closing volatile file "DFID": rc = %d\n",
+ mdt_obd_name(info->mti_mdt), PFID(&data->cd_fid), rc2);
+ LU_OBJECT_DEBUG(D_HSM, info->mti_env, &orphan->mot_obj,
+ "object closed\n");
+ mdt_object_put(info->mti_env, orphan);
+
+out_unlock:
+ up_write(&o->mot_open_sem);
+
+ if (rc == 0) { /* already released */
+ struct mdt_body *repbody;
+ repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
+ LASSERT(repbody != NULL);
+ repbody->valid |= OBD_MD_FLRELEASED;
+ }
+
+ ma->ma_valid = 0;
+ ma->ma_need = 0;
+ return rc;
+}
+
#define MFD_CLOSED(mode) (((mode) & ~(MDS_FMODE_EPOCH | MDS_FMODE_SOM | \
MDS_FMODE_TRUNC)) == MDS_FMODE_CLOSED)
mode = mfd->mfd_mode;
+ if (ma->ma_attr_flags & MDS_HSM_RELEASE) {
+ rc = mdt_hsm_release(info, o, ma);
+ if (rc < 0) {
+ CDEBUG(D_HSM, "%s: File " DFID " release failed: %d\n",
+ mdt_obd_name(info->mti_mdt),
+ PFID(mdt_object_fid(o)), rc);
+ /* continue to close even error occurred. */
+ }
+ }
+
if ((mode & FMODE_WRITE) || (mode & MDS_FMODE_TRUNC)) {
mdt_write_put(o);
ret = mdt_ioepoch_close(info, o);
rc = mo_attr_set(info->mti_env, next, ma);
}
- /* If file data is modified, add the dirty flag.
- *
- * If MDS_CLOSE_CLEANUP is set, this file is being closed due to an
- * eviction, file could have been modified and now dirty
- * regarding to HSM archive, check this!
- * The logic here is to mark a file dirty if there's a chance it was
- * dirtied before the client was evicted, so that we don't have to wait
- * for a release attempt before finding out the file was actually dirty
- * and fail the release. Aggressively marking it dirty here will cause
- * the policy engine to attempt to re-archive it; when rearchiving, we
- * can compare the current version to the LMA data_version and make the
- * archive request into a noop if it's not actually dirty.
- */
- if ((ma->ma_attr_flags & MDS_DATA_MODIFIED) ||
- ((ma->ma_attr_flags & MDS_CLOSE_CLEANUP) &&
- (mode & (FMODE_WRITE|MDS_FMODE_TRUNC))))
+ /* If file data is modified, add the dirty flag. */
+ if (ma->ma_attr_flags & MDS_DATA_MODIFIED)
rc = mdt_add_dirty_flag(info, o, ma);
ma->ma_need |= MA_INODE;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff