#define DEBUG_SUBSYSTEM S_FILTER
#include <dt_object.h>
+#include <linux/falloc.h>
+
#include "mdt_internal.h"
/* functions below are stubs for now, they will be implemented with
}
void mdt_dom_obj_lvb_update(const struct lu_env *env, struct mdt_object *mo,
- bool increase_only)
+ struct obdo *oa, bool increase_only)
{
struct mdt_device *mdt = mdt_dev(mo->mot_obj.lo_dev);
struct ldlm_res_id resid;
return;
/* Update lvbo data if exists. */
- if (mdt_dom_lvb_is_valid(res))
+ if (mdt_dom_lvb_is_valid(res)) {
mdt_dom_disk_lvbo_update(env, mo, res, increase_only);
+ if (oa) {
+ struct ost_lvb *res_lvb = res->lr_lvb_data;
+
+ lock_res(res);
+ oa->o_valid |= OBD_MD_FLBLOCKS | OBD_MD_FLSIZE |
+ OBD_MD_FLMTIME | OBD_MD_FLATIME |
+ OBD_MD_FLCTIME;
+ oa->o_blocks = res_lvb->lvb_blocks;
+ oa->o_size = res_lvb->lvb_size;
+ oa->o_atime = res_lvb->lvb_atime;
+ oa->o_mtime = res_lvb->lvb_mtime;
+ oa->o_ctime = res_lvb->lvb_ctime;
+ unlock_res(res);
+ }
+ }
ldlm_resource_putref(res);
}
else
obdo_from_la(oa, la, LA_GID | LA_UID);
- mdt_dom_obj_lvb_update(env, mo, false);
+ mdt_dom_obj_lvb_update(env, mo, NULL, false);
/* don't report overquota flag if we failed before reaching
* commit */
if (old_rc == 0 && (rc == 0 || rc == -EDQUOT)) {
* atime and we should update the lvb so that other glimpses
* will also get the updated value. bug 5972 */
if (oa)
- mdt_dom_obj_lvb_update(env, mo, true);
+ mdt_dom_obj_lvb_update(env, mo, NULL, true);
rc = mdt_commitrw_read(env, mdt, mo, objcount, npages, lnb);
if (old_rc)
rc = old_rc;
RETURN(rc);
}
+int mdt_object_fallocate(const struct lu_env *env, struct dt_device *dt,
+ struct dt_object *dob, __u64 start, __u64 end,
+ int mode, struct lu_attr *la)
+{
+ struct thandle *th;
+ int rc;
+
+ ENTRY;
+
+ if (!dt_object_exists(dob))
+ RETURN(-ENOENT);
+
+ th = dt_trans_create(env, dt);
+ if (IS_ERR(th))
+ RETURN(PTR_ERR(th));
+
+ rc = dt_declare_attr_set(env, dob, la, th);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = dt_declare_fallocate(env, dob, start, end, mode, th);
+ if (rc)
+ GOTO(stop, rc);
+
+ tgt_vbr_obj_set(env, dob);
+ rc = dt_trans_start(env, dt, th);
+ if (rc)
+ GOTO(stop, rc);
+
+ dt_write_lock(env, dob, 0);
+ rc = dt_falloc(env, dob, start, end, mode, th);
+ if (rc)
+ GOTO(unlock, rc);
+ rc = dt_attr_set(env, dob, la, th);
+ if (rc)
+ GOTO(unlock, rc);
+unlock:
+ dt_write_unlock(env, dob);
+stop:
+ th->th_result = rc;
+ dt_trans_stop(env, dt, th);
+ RETURN(rc);
+}
+
+/**
+ * MDT request handler for OST_FALLOCATE RPC.
+ *
+ * This is part of request processing. Validate request fields,
+ * preallocate the given MDT object and pack reply.
+ *
+ * \param[in] tsi target session environment for this request
+ *
+ * \retval 0 if successful
+ * \retval negative value on error
+ */
+int mdt_fallocate_hdl(struct tgt_session_info *tsi)
+{
+ struct obdo *oa = &tsi->tsi_ost_body->oa;
+ struct ptlrpc_request *req = tgt_ses_req(tsi);
+ struct ost_body *repbody;
+ struct mdt_thread_info *info;
+ struct ldlm_namespace *ns = tsi->tsi_tgt->lut_obd->obd_namespace;
+ struct obd_export *exp = tsi->tsi_exp;
+ struct mdt_device *mdt = mdt_dev(exp->exp_obd->obd_lu_dev);
+ struct mdt_object *mo;
+ struct dt_object *dob;
+ struct lu_attr *la;
+ __u64 flags = 0;
+ struct lustre_handle lh = { 0, };
+ int rc, mode;
+ __u64 start, end;
+ bool srvlock;
+ ktime_t kstart = ktime_get();
+
+ repbody = req_capsule_server_get(tsi->tsi_pill, &RMF_OST_BODY);
+ if (repbody == NULL)
+ RETURN(err_serious(-ENOMEM));
+
+ /*
+ * fallocate start and end are passed in o_size, o_blocks
+ * on the wire.
+ */
+ if ((oa->o_valid & (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS)) !=
+ (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS))
+ RETURN(err_serious(-EPROTO));
+
+ start = oa->o_size;
+ end = oa->o_blocks;
+ mode = oa->o_falloc_mode;
+
+ CDEBUG(D_INODE,
+ "fallocate: "DFID", mode = %#x, start = %lld, end = %lld\n",
+ PFID(&tsi->tsi_fid), mode, start, end);
+
+ /*
+ * mode == 0 (which is standard prealloc) and PUNCH is supported
+ * Rest of mode options are not supported yet.
+ */
+ if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+ RETURN(-EOPNOTSUPP);
+
+ if (mode & FALLOC_FL_PUNCH_HOLE && !(mode & FALLOC_FL_KEEP_SIZE)) {
+ CWARN("%s: PUNCH mode misses KEEP_SIZE flag, setting it\n",
+ tsi->tsi_tgt->lut_obd->obd_name);
+ mode |= FALLOC_FL_KEEP_SIZE;
+ }
+
+ info = tsi2mdt_info(tsi);
+ la = &info->mti_attr.ma_attr;
+
+ repbody->oa.o_oi = oa->o_oi;
+ repbody->oa.o_valid = OBD_MD_FLID;
+
+ srvlock = oa->o_valid & OBD_MD_FLFLAGS &&
+ oa->o_flags & OBD_FL_SRVLOCK;
+
+ if (srvlock) {
+ rc = tgt_mdt_data_lock(ns, &tsi->tsi_resid, &lh, LCK_PW,
+ &flags);
+ if (rc != 0)
+ GOTO(out, rc);
+ }
+
+ mo = mdt_object_find(tsi->tsi_env, mdt, &tsi->tsi_fid);
+ if (IS_ERR(mo))
+ GOTO(out_unlock, rc = PTR_ERR(mo));
+
+ if (!mdt_object_exists(mo))
+ GOTO(out_put, rc = -ENOENT);
+
+ /* Shouldn't happen on dirs */
+ if (S_ISDIR(lu_object_attr(&mo->mot_obj))) {
+ rc = -EPERM;
+ CERROR("%s: fallocate on dir "DFID": rc = %d\n",
+ exp->exp_obd->obd_name, PFID(&tsi->tsi_fid), rc);
+ GOTO(out_put, rc);
+ }
+
+ la_from_obdo(la, oa, OBD_MD_FLMTIME | OBD_MD_FLATIME | OBD_MD_FLCTIME);
+
+ mdt_dom_write_lock(mo);
+ dob = mdt_obj2dt(mo);
+
+ if (la->la_valid & (LA_ATIME | LA_MTIME | LA_CTIME))
+ tgt_fmd_update(tsi->tsi_exp, &tsi->tsi_fid,
+ tgt_ses_req(tsi)->rq_xid);
+
+ rc = mdt_object_fallocate(tsi->tsi_env, mdt->mdt_bottom, dob, start,
+ end, mode, la);
+ mdt_dom_write_unlock(mo);
+ if (rc)
+ GOTO(out_put, rc);
+
+ mdt_dom_obj_lvb_update(tsi->tsi_env, mo, &repbody->oa, false);
+
+ mdt_counter_incr(req, LPROC_MDT_FALLOCATE,
+ ktime_us_delta(ktime_get(), kstart));
+
+ EXIT;
+out_put:
+ lu_object_put(tsi->tsi_env, &mo->mot_obj);
+out_unlock:
+ if (srvlock)
+ tgt_data_unlock(&lh, LCK_PW);
+out:
+ mdt_thread_info_fini(info);
+ return rc;
+}
+
int mdt_object_punch(const struct lu_env *env, struct dt_device *dt,
struct dt_object *dob, __u64 start, __u64 end,
struct lu_attr *la)
if (rc)
GOTO(out_put, rc);
- mdt_dom_obj_lvb_update(tsi->tsi_env, mo, false);
+ mdt_dom_obj_lvb_update(tsi->tsi_env, mo, &repbody->oa, false);
+
mdt_counter_incr(req, LPROC_MDT_IO_PUNCH,
ktime_us_delta(ktime_get(), kstart));
EXIT;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff