*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lustre/mdt/mdt_reint.c
*
#include <lprocfs_status.h>
#include "mdt_internal.h"
#include <lustre_lmv.h>
+#include <lustre_crypto.h>
static inline void mdt_reint_init_ma(struct mdt_thread_info *info,
- struct md_attr *ma)
+ struct md_attr *ma)
{
ma->ma_need = MA_INODE;
- ma->ma_valid = 0;
+ ma->ma_valid = 0;
}
/**
* Return real version or ENOENT_VERSION if object doesn't exist
*/
static void mdt_obj_version_get(struct mdt_thread_info *info,
- struct mdt_object *o, __u64 *version)
+ struct mdt_object *o, __u64 *version)
{
LASSERT(o);
* Should be called only during replay.
*/
static int mdt_version_check(struct ptlrpc_request *req,
- __u64 version, int idx)
+ __u64 version, int idx)
{
- __u64 *pre_ver = lustre_msg_get_versions(req->rq_reqmsg);
- ENTRY;
-
- if (!exp_connect_vbr(req->rq_export))
- RETURN(0);
-
- LASSERT(req_is_replay(req));
- /** VBR: version is checked always because costs nothing */
- LASSERT(idx < PTLRPC_NUM_VERSIONS);
- /** Sanity check for malformed buffers */
- if (pre_ver == NULL) {
- CERROR("No versions in request buffer\n");
+ __u64 *pre_ver = lustre_msg_get_versions(req->rq_reqmsg);
+
+ ENTRY;
+ if (!exp_connect_vbr(req->rq_export))
+ RETURN(0);
+
+ LASSERT(req_is_replay(req));
+ /** VBR: version is checked always because costs nothing */
+ LASSERT(idx < PTLRPC_NUM_VERSIONS);
+ /** Sanity check for malformed buffers */
+ if (pre_ver == NULL) {
+ CERROR("No versions in request buffer\n");
spin_lock(&req->rq_export->exp_lock);
req->rq_export->exp_vbr_failed = 1;
spin_unlock(&req->rq_export->exp_lock);
* Save pre-versions in reply.
*/
static void mdt_version_save(struct ptlrpc_request *req, __u64 version,
- int idx)
+ int idx)
{
- __u64 *reply_ver;
+ __u64 *reply_ver;
- if (!exp_connect_vbr(req->rq_export))
- return;
+ if (!exp_connect_vbr(req->rq_export))
+ return;
- LASSERT(!req_is_replay(req));
- LASSERT(req->rq_repmsg != NULL);
- reply_ver = lustre_msg_get_versions(req->rq_repmsg);
- if (reply_ver)
- reply_ver[idx] = version;
+ LASSERT(!req_is_replay(req));
+ LASSERT(req->rq_repmsg != NULL);
+ reply_ver = lustre_msg_get_versions(req->rq_repmsg);
+ if (reply_ver)
+ reply_ver[idx] = version;
}
/**
*/
static void mdt_enoent_version_save(struct mdt_thread_info *info, int idx)
{
- /* save version of file name for replay, it must be ENOENT here */
- if (!req_is_replay(mdt_info_req(info))) {
- info->mti_ver[idx] = ENOENT_VERSION;
- mdt_version_save(mdt_info_req(info), info->mti_ver[idx], idx);
- }
+ /* save version of file name for replay, it must be ENOENT here */
+ if (!req_is_replay(mdt_info_req(info))) {
+ info->mti_ver[idx] = ENOENT_VERSION;
+ mdt_version_save(mdt_info_req(info), info->mti_ver[idx], idx);
+ }
}
/**
* Versions are saved in reply only during normal operations not replays.
*/
void mdt_version_get_save(struct mdt_thread_info *info,
- struct mdt_object *mto, int idx)
+ struct mdt_object *mto, int idx)
{
- /* don't save versions during replay */
- if (!req_is_replay(mdt_info_req(info))) {
- mdt_obj_version_get(info, mto, &info->mti_ver[idx]);
- mdt_version_save(mdt_info_req(info), info->mti_ver[idx], idx);
- }
+ /* don't save versions during replay */
+ if (!req_is_replay(mdt_info_req(info))) {
+ mdt_obj_version_get(info, mto, &info->mti_ver[idx]);
+ mdt_version_save(mdt_info_req(info), info->mti_ver[idx], idx);
+ }
}
/**
* Get version from disk and check it, no save in reply.
*/
int mdt_version_get_check(struct mdt_thread_info *info,
- struct mdt_object *mto, int idx)
+ struct mdt_object *mto, int idx)
{
- /* only check versions during replay */
- if (!req_is_replay(mdt_info_req(info)))
- return 0;
+ /* only check versions during replay */
+ if (!req_is_replay(mdt_info_req(info)))
+ return 0;
- mdt_obj_version_get(info, mto, &info->mti_ver[idx]);
- return mdt_version_check(mdt_info_req(info), info->mti_ver[idx], idx);
+ mdt_obj_version_get(info, mto, &info->mti_ver[idx]);
+ return mdt_version_check(mdt_info_req(info), info->mti_ver[idx], idx);
}
/**
* Get version from disk and check if recovery or just save.
*/
int mdt_version_get_check_save(struct mdt_thread_info *info,
- struct mdt_object *mto, int idx)
+ struct mdt_object *mto, int idx)
{
- int rc = 0;
-
- mdt_obj_version_get(info, mto, &info->mti_ver[idx]);
- if (req_is_replay(mdt_info_req(info)))
- rc = mdt_version_check(mdt_info_req(info), info->mti_ver[idx],
- idx);
- else
- mdt_version_save(mdt_info_req(info), info->mti_ver[idx], idx);
- return rc;
+ int rc = 0;
+
+ mdt_obj_version_get(info, mto, &info->mti_ver[idx]);
+ if (req_is_replay(mdt_info_req(info)))
+ rc = mdt_version_check(mdt_info_req(info), info->mti_ver[idx],
+ idx);
+ else
+ mdt_version_save(mdt_info_req(info), info->mti_ver[idx], idx);
+ return rc;
}
/**
* This checks version of 'name'. Many reint functions uses 'name' for child not
* FID, therefore we need to get object by name and check its version.
*/
-static int mdt_lookup_version_check(struct mdt_thread_info *info,
- struct mdt_object *p,
- const struct lu_name *lname,
- struct lu_fid *fid, int idx)
-{
- int rc, vbrc;
-
- rc = mdo_lookup(info->mti_env, mdt_object_child(p), lname, fid,
- &info->mti_spec);
- /* Check version only during replay */
- if (!req_is_replay(mdt_info_req(info)))
- return rc;
-
- info->mti_ver[idx] = ENOENT_VERSION;
- if (rc == 0) {
- struct mdt_object *child;
- child = mdt_object_find(info->mti_env, info->mti_mdt, fid);
- if (likely(!IS_ERR(child))) {
- mdt_obj_version_get(info, child, &info->mti_ver[idx]);
- mdt_object_put(info->mti_env, child);
- }
- }
- vbrc = mdt_version_check(mdt_info_req(info), info->mti_ver[idx], idx);
- return vbrc ? vbrc : rc;
-
-}
-
-static inline int mdt_remote_permission_check(struct mdt_thread_info *info)
-{
- struct lu_ucred *uc = mdt_ucred(info);
- struct mdt_device *mdt = info->mti_mdt;
-
- if (!md_capable(uc, CFS_CAP_SYS_ADMIN)) {
- if (uc->uc_gid != mdt->mdt_enable_remote_dir_gid &&
- mdt->mdt_enable_remote_dir_gid != -1)
- return -EPERM;
- }
-
- return 0;
-}
-
-/**
- * mdt_remote_permission: Check whether the remote operation is permitted,
- *
- * Only sysadmin can create remote directory / striped directory,
- * migrate directory and set default stripedEA on directory, unless
- *
- * lctl set_param mdt.*.enable_remote_dir_gid=allow_gid.
- *
- * param[in] info: mdt_thread_info.
- *
- * retval = 0 remote operation is allowed.
- * < 0 remote operation is denied.
- */
-static int mdt_remote_permission(struct mdt_thread_info *info)
+int mdt_lookup_version_check(struct mdt_thread_info *info,
+ struct mdt_object *p,
+ const struct lu_name *lname,
+ struct lu_fid *fid, int idx)
{
- struct md_op_spec *spec = &info->mti_spec;
- struct lu_attr *attr = &info->mti_attr.ma_attr;
- struct obd_export *exp = mdt_info_req(info)->rq_export;
- int rc;
-
- if (info->mti_rr.rr_opcode == REINT_MIGRATE) {
- rc = mdt_remote_permission_check(info);
- if (rc != 0)
- return rc;
- }
-
- if (info->mti_rr.rr_opcode == REINT_CREATE &&
- (S_ISDIR(attr->la_mode) && spec->u.sp_ea.eadata != NULL &&
- spec->u.sp_ea.eadatalen != 0)) {
- const struct lmv_user_md *lum = spec->u.sp_ea.eadata;
-
- /* Only new clients can create remote dir( >= 2.4) and
- * striped dir(>= 2.6), old client will return -ENOTSUPP */
- if (!mdt_is_dne_client(exp))
- return -ENOTSUPP;
+ int rc, vbrc;
- if (le32_to_cpu(lum->lum_stripe_count) > 1 &&
- !mdt_is_striped_client(exp))
- return -ENOTSUPP;
-
- rc = mdt_remote_permission_check(info);
- if (rc != 0)
- return rc;
- }
+ rc = mdo_lookup(info->mti_env, mdt_object_child(p), lname, fid,
+ &info->mti_spec);
+ /* Check version only during replay */
+ if (!req_is_replay(mdt_info_req(info)))
+ return rc;
- if (info->mti_rr.rr_opcode == REINT_SETATTR) {
- struct md_attr *ma = &info->mti_attr;
+ info->mti_ver[idx] = ENOENT_VERSION;
+ if (rc == 0) {
+ struct mdt_object *child;
- if ((ma->ma_valid & MA_LMV)) {
- rc = mdt_remote_permission_check(info);
- if (rc != 0)
- return rc;
+ child = mdt_object_find(info->mti_env, info->mti_mdt, fid);
+ if (likely(!IS_ERR(child))) {
+ mdt_obj_version_get(info, child, &info->mti_ver[idx]);
+ mdt_object_put(info->mti_env, child);
}
}
+ vbrc = mdt_version_check(mdt_info_req(info), info->mti_ver[idx], idx);
+ return vbrc ? vbrc : rc;
- return 0;
}
static int mdt_unlock_slaves(struct mdt_thread_info *mti,
static inline int mdt_object_striped(struct mdt_thread_info *mti,
struct mdt_object *obj)
{
+ struct lu_device *bottom_dev;
+ struct lu_object *bottom_obj;
int rc;
if (!S_ISDIR(obj->mot_header.loh_attr))
return 0;
- rc = mo_xattr_get(mti->mti_env, mdt_object_child(obj), &LU_BUF_NULL,
+ /* getxattr from bottom obj to avoid reading in shard FIDs */
+ bottom_dev = dt2lu_dev(mti->mti_mdt->mdt_bottom);
+ bottom_obj = lu_object_find_slice(mti->mti_env, bottom_dev,
+ mdt_object_fid(obj), NULL);
+ if (IS_ERR(bottom_obj))
+ return PTR_ERR(bottom_obj);
+
+ rc = dt_xattr_get(mti->mti_env, lu2dt(bottom_obj), &LU_BUF_NULL,
XATTR_NAME_LMV);
- if (rc <= 0)
- return rc == -ENODATA ? 0 : rc;
+ lu_object_put(mti->mti_env, bottom_obj);
- return 1;
+ return (rc > 0) ? 1 : (rc == -ENODATA) ? 0 : rc;
}
/**
policy);
}
-static inline int mdt_reint_striped_lock(struct mdt_thread_info *info,
- struct mdt_object *o,
- struct mdt_lock_handle *lh,
- __u64 ibits,
- struct ldlm_enqueue_info *einfo,
- bool cos_incompat)
+int mdt_reint_striped_lock(struct mdt_thread_info *info,
+ struct mdt_object *o,
+ struct mdt_lock_handle *lh,
+ __u64 ibits,
+ struct ldlm_enqueue_info *einfo,
+ bool cos_incompat)
{
int rc;
return rc;
}
-static inline void
-mdt_reint_striped_unlock(struct mdt_thread_info *info, struct mdt_object *o,
- struct mdt_lock_handle *lh,
- struct ldlm_enqueue_info *einfo, int decref)
+void mdt_reint_striped_unlock(struct mdt_thread_info *info,
+ struct mdt_object *o,
+ struct mdt_lock_handle *lh,
+ struct ldlm_enqueue_info *einfo, int decref)
{
if (einfo->ei_cbdata)
mdt_unlock_slaves(info, o, einfo, decref);
mdt_object_unlock(info, o, lh, decref);
}
+static int mdt_restripe(struct mdt_thread_info *info,
+ struct mdt_object *parent,
+ const struct lu_name *lname,
+ const struct lu_fid *tfid,
+ struct md_op_spec *spec,
+ struct md_attr *ma)
+{
+ struct mdt_device *mdt = info->mti_mdt;
+ struct lu_fid *fid = &info->mti_tmp_fid2;
+ struct ldlm_enqueue_info *einfo = &info->mti_einfo[0];
+ struct lmv_user_md *lum = spec->u.sp_ea.eadata;
+ struct lmv_mds_md_v1 *lmv;
+ struct mdt_object *child;
+ struct mdt_lock_handle *lhp;
+ struct mdt_lock_handle *lhc;
+ struct mdt_body *repbody;
+ int rc;
+
+ ENTRY;
+ if (!mdt->mdt_enable_dir_restripe)
+ RETURN(-EPERM);
+
+ LASSERT(lum);
+ lum->lum_hash_type |= cpu_to_le32(LMV_HASH_FLAG_FIXED);
+
+ rc = mdt_version_get_check_save(info, parent, 0);
+ if (rc)
+ RETURN(rc);
+
+ lhp = &info->mti_lh[MDT_LH_PARENT];
+ mdt_lock_pdo_init(lhp, LCK_PW, lname);
+ rc = mdt_reint_object_lock(info, parent, lhp, MDS_INODELOCK_UPDATE,
+ true);
+ if (rc)
+ RETURN(rc);
+
+ rc = mdt_stripe_get(info, parent, ma, XATTR_NAME_LMV);
+ if (rc)
+ GOTO(unlock_parent, rc);
+
+ if (ma->ma_valid & MA_LMV) {
+ /* don't allow restripe if parent dir layout is changing */
+ lmv = &ma->ma_lmv->lmv_md_v1;
+ if (!lmv_is_sane2(lmv))
+ GOTO(unlock_parent, rc = -EBADF);
+
+ if (lmv_is_layout_changing(lmv))
+ GOTO(unlock_parent, rc = -EBUSY);
+ }
+
+ fid_zero(fid);
+ rc = mdt_lookup_version_check(info, parent, lname, fid, 1);
+ if (rc)
+ GOTO(unlock_parent, rc);
+
+ child = mdt_object_find(info->mti_env, mdt, fid);
+ if (IS_ERR(child))
+ GOTO(unlock_parent, rc = PTR_ERR(child));
+
+ if (!mdt_object_exists(child))
+ GOTO(out_child, rc = -ENOENT);
+
+ if (mdt_object_remote(child)) {
+ struct mdt_body *repbody;
+
+ repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
+ if (!repbody)
+ GOTO(out_child, rc = -EPROTO);
+
+ repbody->mbo_fid1 = *fid;
+ repbody->mbo_valid |= (OBD_MD_FLID | OBD_MD_MDS);
+ GOTO(out_child, rc = -EREMOTE);
+ }
+
+ if (!S_ISDIR(lu_object_attr(&child->mot_obj)))
+ GOTO(out_child, rc = -ENOTDIR);
+
+ rc = mdt_stripe_get(info, child, ma, XATTR_NAME_LMV);
+ if (rc)
+ GOTO(out_child, rc);
+
+ /* race with migrate? */
+ if ((ma->ma_valid & MA_LMV) &&
+ lmv_is_migrating(&ma->ma_lmv->lmv_md_v1))
+ GOTO(out_child, rc = -EBUSY);
+
+ /* lock object */
+ lhc = &info->mti_lh[MDT_LH_CHILD];
+ mdt_lock_reg_init(lhc, LCK_EX);
+
+ /* enqueue object remote LOOKUP lock */
+ if (mdt_object_remote(parent)) {
+ rc = mdt_remote_object_lock(info, parent, fid,
+ &lhc->mlh_rreg_lh,
+ lhc->mlh_rreg_mode,
+ MDS_INODELOCK_LOOKUP, false);
+ if (rc != ELDLM_OK)
+ GOTO(out_child, rc);
+ }
+
+ rc = mdt_reint_striped_lock(info, child, lhc, MDS_INODELOCK_FULL, einfo,
+ true);
+ if (rc)
+ GOTO(unlock_child, rc);
+
+ tgt_vbr_obj_set(info->mti_env, mdt_obj2dt(child));
+ rc = mdt_version_get_check_save(info, child, 1);
+ if (rc)
+ GOTO(unlock_child, rc);
+
+ spin_lock(&mdt->mdt_restriper.mdr_lock);
+ if (child->mot_restriping) {
+ /* race? */
+ spin_unlock(&mdt->mdt_restriper.mdr_lock);
+ GOTO(unlock_child, rc = -EBUSY);
+ }
+ child->mot_restriping = 1;
+ spin_unlock(&mdt->mdt_restriper.mdr_lock);
+
+ *fid = *tfid;
+ rc = mdt_restripe_internal(info, parent, child, lname, fid, spec, ma);
+ if (rc)
+ GOTO(restriping_clear, rc);
+
+ repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
+ if (!repbody)
+ GOTO(restriping_clear, rc = -EPROTO);
+
+ mdt_pack_attr2body(info, repbody, &ma->ma_attr, fid);
+ EXIT;
+
+restriping_clear:
+ child->mot_restriping = 0;
+unlock_child:
+ mdt_reint_striped_unlock(info, child, lhc, einfo, rc);
+out_child:
+ mdt_object_put(info->mti_env, child);
+unlock_parent:
+ mdt_object_unlock(info, parent, lhp, rc);
+
+ return rc;
+}
+
/*
* VBR: we save three versions in reply:
* 0 - parent. Check that parent version is the same during replay.
*/
static int mdt_create(struct mdt_thread_info *info)
{
- struct mdt_device *mdt = info->mti_mdt;
- struct mdt_object *parent;
- struct mdt_object *child;
- struct mdt_lock_handle *lh;
- struct mdt_body *repbody;
- struct md_attr *ma = &info->mti_attr;
+ struct mdt_device *mdt = info->mti_mdt;
+ struct mdt_object *parent;
+ struct mdt_object *child;
+ struct mdt_lock_handle *lh;
+ struct mdt_body *repbody;
+ struct md_attr *ma = &info->mti_attr;
struct mdt_reint_record *rr = &info->mti_rr;
+ struct md_op_spec *spec = &info->mti_spec;
+ bool restripe = false;
int rc;
- ENTRY;
- DEBUG_REQ(D_INODE, mdt_info_req(info), "Create ("DNAME"->"DFID") "
- "in "DFID,
+ ENTRY;
+ DEBUG_REQ(D_INODE, mdt_info_req(info),
+ "Create ("DNAME"->"DFID") in "DFID,
PNAME(&rr->rr_name), PFID(rr->rr_fid2), PFID(rr->rr_fid1));
if (!fid_is_md_operative(rr->rr_fid1))
RETURN(-EPERM);
+ if (S_ISDIR(ma->ma_attr.la_mode) &&
+ spec->u.sp_ea.eadata != NULL && spec->u.sp_ea.eadatalen != 0) {
+ const struct lmv_user_md *lum = spec->u.sp_ea.eadata;
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct obd_export *exp = mdt_info_req(info)->rq_export;
+
+ /* Only new clients can create remote dir( >= 2.4) and
+ * striped dir(>= 2.6), old client will return -ENOTSUPP
+ */
+ if (!mdt_is_dne_client(exp))
+ RETURN(-ENOTSUPP);
+
+ if (le32_to_cpu(lum->lum_stripe_count) > 1) {
+ if (!mdt_is_striped_client(exp))
+ RETURN(-ENOTSUPP);
+
+ if (!mdt->mdt_enable_striped_dir)
+ RETURN(-EPERM);
+ } else if (!mdt->mdt_enable_remote_dir) {
+ RETURN(-EPERM);
+ }
+
+ if ((!(exp_connect_flags2(exp) & OBD_CONNECT2_CRUSH)) &&
+ (le32_to_cpu(lum->lum_hash_type) & LMV_HASH_TYPE_MASK) ==
+ LMV_HASH_TYPE_CRUSH)
+ RETURN(-EPROTO);
+
+ if (!cap_raised(uc->uc_cap, CAP_SYS_ADMIN) &&
+ uc->uc_gid != mdt->mdt_enable_remote_dir_gid &&
+ mdt->mdt_enable_remote_dir_gid != -1)
+ RETURN(-EPERM);
+
+ /* restripe if later found dir exists, MDS_OPEN_CREAT means
+ * this is create only, don't try restripe.
+ */
+ if (mdt->mdt_enable_dir_restripe &&
+ le32_to_cpu(lum->lum_stripe_offset) == LMV_OFFSET_DEFAULT &&
+ !(spec->sp_cr_flags & MDS_OPEN_CREAT))
+ restripe = true;
+ }
+
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
parent = mdt_object_find(info->mti_env, info->mti_mdt, rr->rr_fid1);
if (!mdt_object_exists(parent))
GOTO(put_parent, rc = -ENOENT);
+ /*
+ * LU-10235: check if name exists locklessly first to avoid massive
+ * lock recalls on existing directories.
+ */
+ rc = mdt_lookup_version_check(info, parent, &rr->rr_name,
+ &info->mti_tmp_fid1, 1);
+ if (rc == 0) {
+ if (!restripe)
+ GOTO(put_parent, rc = -EEXIST);
+
+ rc = mdt_restripe(info, parent, &rr->rr_name, rr->rr_fid2, spec,
+ ma);
+ }
+
+ /* -ENOENT is expected here */
+ if (rc != -ENOENT)
+ GOTO(put_parent, rc);
+
+ /* save version of file name for replay, it must be ENOENT here */
+ mdt_enoent_version_save(info, 1);
+
+ OBD_RACE(OBD_FAIL_MDS_CREATE_RACE);
+
lh = &info->mti_lh[MDT_LH_PARENT];
mdt_lock_pdo_init(lh, LCK_PW, &rr->rr_name);
rc = mdt_object_lock(info, parent, lh, MDS_INODELOCK_UPDATE);
GOTO(unlock_parent, rc);
}
- /*
- * Check child name version during replay.
- * During create replay a file may exist with same name.
- */
- rc = mdt_lookup_version_check(info, parent, &rr->rr_name,
- &info->mti_tmp_fid1, 1);
- if (rc == 0)
- GOTO(unlock_parent, rc = -EEXIST);
-
- /* -ENOENT is expected here */
- if (rc != -ENOENT)
- GOTO(unlock_parent, rc);
-
- /* save version of file name for replay, it must be ENOENT here */
- mdt_enoent_version_save(info, 1);
-
child = mdt_object_new(info->mti_env, mdt, rr->rr_fid2);
if (unlikely(IS_ERR(child)))
GOTO(unlock_parent, rc = PTR_ERR(child));
- rc = mdt_remote_permission(info);
- if (rc != 0)
- GOTO(put_child, rc);
-
ma->ma_need = MA_INODE;
ma->ma_valid = 0;
if (rc)
GOTO(put_child, rc);
- /* Let lower layer know current lock mode. */
- info->mti_spec.sp_cr_mode = mdt_dlm_mode2mdl_mode(lh->mlh_pdo_mode);
-
/*
* Do not perform lookup sanity check. We know that name does
* not exist.
*/
if (mdt_slc_is_enabled(mdt) && S_ISDIR(ma->ma_attr.la_mode)) {
struct mdt_lock_handle *lhc;
- struct ldlm_enqueue_info *einfo = &info->mti_einfo;
+ struct ldlm_enqueue_info *einfo = &info->mti_einfo[0];
bool cos_incompat;
rc = mdt_object_striped(info, child);
if (ma->ma_valid & MA_INODE)
mdt_pack_attr2body(info, repbody, &ma->ma_attr,
mdt_object_fid(child));
+ EXIT;
put_child:
mdt_object_put(info->mti_env, child);
unlock_parent:
mdt_object_unlock(info, parent, lh, rc);
put_parent:
mdt_object_put(info->mti_env, parent);
- RETURN(rc);
+ return rc;
}
static int mdt_attr_set(struct mdt_thread_info *info, struct mdt_object *mo,
int do_vbr = ma->ma_attr.la_valid &
(LA_MODE | LA_UID | LA_GID | LA_PROJID | LA_FLAGS);
__u64 lockpart = MDS_INODELOCK_UPDATE;
- struct ldlm_enqueue_info *einfo = &info->mti_einfo;
+ struct ldlm_enqueue_info *einfo = &info->mti_einfo[0];
bool cos_incompat;
int rc;
- ENTRY;
+ ENTRY;
rc = mdt_object_striped(info, mo);
if (rc < 0)
RETURN(rc);
/* Even though the new MDT will grant PERM lock to the old
* client, but the old client will almost ignore that during
* So it needs to revoke both LOOKUP and PERM lock here, so
- * both new and old client can cancel the dcache */
+ * both new and old client can cancel the dcache
+ */
if (ma->ma_attr.la_valid & (LA_MODE|LA_UID|LA_GID))
lockpart |= MDS_INODELOCK_LOOKUP | MDS_INODELOCK_PERM;
if (rc != 0)
GOTO(out_unlock, rc);
- mdt_dom_obj_lvb_update(info->mti_env, mo, false);
+ mdt_dom_obj_lvb_update(info->mti_env, mo, NULL, false);
EXIT;
out_unlock:
mdt_reint_striped_unlock(info, mo, lh, einfo, rc);
int mdt_add_dirty_flag(struct mdt_thread_info *info, struct mdt_object *mo,
struct md_attr *ma)
{
+ struct lu_ucred *uc = mdt_ucred(info);
+ kernel_cap_t cap_saved;
int rc;
- ENTRY;
+ ENTRY;
/* If the file was modified, add the dirty flag */
ma->ma_need = MA_HSM;
rc = mdt_attr_get_complex(info, mo, ma);
&& !(ma->ma_hsm.mh_flags & (HS_DIRTY|HS_RELEASED))) {
ma->ma_hsm.mh_flags |= HS_DIRTY;
+ /* Bump cap so that closes from non-owner writers can
+ * set the HSM state to dirty.
+ */
+ cap_saved = uc->uc_cap;
+ cap_raise(uc->uc_cap, CAP_FOWNER);
rc = mdt_hsm_attr_set(info, mo, &ma->ma_hsm);
+ uc->uc_cap = cap_saved;
if (rc)
CERROR("file attribute change error for "DFID": %d\n",
PFID(mdt_object_fid(mo)), rc);
}
static int mdt_reint_setattr(struct mdt_thread_info *info,
- struct mdt_lock_handle *lhc)
+ struct mdt_lock_handle *lhc)
{
- struct md_attr *ma = &info->mti_attr;
- struct mdt_reint_record *rr = &info->mti_rr;
- struct ptlrpc_request *req = mdt_info_req(info);
- struct mdt_object *mo;
- struct mdt_body *repbody;
- int rc, rc2;
- ENTRY;
+ struct mdt_device *mdt = info->mti_mdt;
+ struct md_attr *ma = &info->mti_attr;
+ struct mdt_reint_record *rr = &info->mti_rr;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct mdt_object *mo;
+ struct mdt_body *repbody;
+ ktime_t kstart = ktime_get();
+ int rc, rc2;
- DEBUG_REQ(D_INODE, req, "setattr "DFID" %x", PFID(rr->rr_fid1),
- (unsigned int)ma->ma_attr.la_valid);
+ ENTRY;
+ DEBUG_REQ(D_INODE, req, "setattr "DFID" %x", PFID(rr->rr_fid1),
+ (unsigned int)ma->ma_attr.la_valid);
if (info->mti_dlm_req)
ldlm_request_cancel(req, info->mti_dlm_req, 0, LATF_SKIP);
+ OBD_RACE(OBD_FAIL_PTLRPC_RESEND_RACE);
+
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
- mo = mdt_object_find(info->mti_env, info->mti_mdt, rr->rr_fid1);
- if (IS_ERR(mo))
- GOTO(out, rc = PTR_ERR(mo));
+ mo = mdt_object_find(info->mti_env, mdt, rr->rr_fid1);
+ if (IS_ERR(mo))
+ GOTO(out, rc = PTR_ERR(mo));
if (!mdt_object_exists(mo))
GOTO(out_put, rc = -ENOENT);
if (mdt_object_remote(mo))
GOTO(out_put, rc = -EREMOTE);
+ ma->ma_enable_chprojid_gid = mdt->mdt_enable_chprojid_gid;
+ /* revoke lease lock if size is going to be changed */
+ if (unlikely(ma->ma_attr.la_valid & LA_SIZE &&
+ !(ma->ma_attr_flags & MDS_TRUNC_KEEP_LEASE) &&
+ atomic_read(&mo->mot_lease_count) > 0)) {
+ down_read(&mo->mot_open_sem);
+
+ if (atomic_read(&mo->mot_lease_count) > 0) { /* lease exists */
+ lhc = &info->mti_lh[MDT_LH_LOCAL];
+ mdt_lock_reg_init(lhc, LCK_CW);
+
+ rc = mdt_object_lock(info, mo, lhc, MDS_INODELOCK_OPEN);
+ if (rc != 0) {
+ up_read(&mo->mot_open_sem);
+ GOTO(out_put, rc);
+ }
+
+ /* revoke lease lock */
+ mdt_object_unlock(info, mo, lhc, 1);
+ }
+ up_read(&mo->mot_open_sem);
+ }
+
if (ma->ma_attr.la_valid & LA_SIZE || rr->rr_flags & MRF_OPEN_TRUNC) {
/* Check write access for the O_TRUNC case */
if (mdt_write_read(mo) < 0)
GOTO(out_put, rc = -ETXTBSY);
/* LU-10286: compatibility check for FLR.
- * Please check the comment in mdt_finish_open() for details */
- if (!exp_connect_flr(info->mti_exp)) {
+ * Please check the comment in mdt_finish_open() for details
+ */
+ if (!exp_connect_flr(info->mti_exp) ||
+ !exp_connect_overstriping(info->mti_exp)) {
rc = mdt_big_xattr_get(info, mo, XATTR_NAME_LOV);
if (rc < 0 && rc != -ENODATA)
GOTO(out_put, rc);
- if (rc > 0 && mdt_lmm_is_flr(info->mti_big_lmm))
- GOTO(out_put, rc = -EOPNOTSUPP);
+ if (!exp_connect_flr(info->mti_exp)) {
+ if (rc > 0 &&
+ mdt_lmm_is_flr(info->mti_big_lmm))
+ GOTO(out_put, rc = -EOPNOTSUPP);
+ }
+
+ if (!exp_connect_overstriping(info->mti_exp)) {
+ if (rc > 0 &&
+ mdt_lmm_is_overstriping(info->mti_big_lmm))
+ GOTO(out_put, rc = -EOPNOTSUPP);
+ }
}
/* For truncate, the file size sent from client
if (ma->ma_valid & MA_LOV)
GOTO(out_put, rc = -EPROTO);
+ /* MDT supports FMD for regular files due to Data-on-MDT */
+ if (S_ISREG(lu_object_attr(&mo->mot_obj)) &&
+ ma->ma_attr.la_valid & (LA_ATIME | LA_MTIME | LA_CTIME)) {
+ tgt_fmd_update(info->mti_exp, mdt_object_fid(mo),
+ req->rq_xid);
+
+ if (ma->ma_attr.la_valid & LA_MTIME) {
+ rc = mdt_attr_get_pfid(info, mo, &ma->ma_pfid);
+ if (!rc)
+ ma->ma_valid |= MA_PFID;
+ }
+ }
+
rc = mdt_attr_set(info, mo, ma);
if (rc)
GOTO(out_put, rc);
} else if ((ma->ma_valid & (MA_LOV | MA_LMV)) &&
(ma->ma_valid & MA_INODE)) {
- struct lu_buf *buf = &info->mti_buf;
- struct mdt_lock_handle *lh;
+ struct lu_buf *buf = &info->mti_buf;
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct mdt_lock_handle *lh;
+ const char *name;
+ __u64 lockpart = MDS_INODELOCK_XATTR;
+
+ /* reject if either remote or striped dir is disabled */
+ if (ma->ma_valid & MA_LMV) {
+ if (!mdt->mdt_enable_remote_dir ||
+ !mdt->mdt_enable_striped_dir)
+ GOTO(out_put, rc = -EPERM);
+
+ if (!cap_raised(uc->uc_cap, CAP_SYS_ADMIN) &&
+ uc->uc_gid != mdt->mdt_enable_remote_dir_gid &&
+ mdt->mdt_enable_remote_dir_gid != -1)
+ GOTO(out_put, rc = -EPERM);
+ }
- rc = mdt_remote_permission(info);
- if (rc < 0)
- GOTO(out_put, rc);
+ if (!S_ISDIR(lu_object_attr(&mo->mot_obj)))
+ GOTO(out_put, rc = -ENOTDIR);
if (ma->ma_attr.la_valid != 0)
GOTO(out_put, rc = -EPROTO);
lh = &info->mti_lh[MDT_LH_PARENT];
mdt_lock_reg_init(lh, LCK_PW);
- rc = mdt_object_lock(info, mo, lh, MDS_INODELOCK_XATTR);
- if (rc != 0)
- GOTO(out_put, rc);
-
if (ma->ma_valid & MA_LOV) {
buf->lb_buf = ma->ma_lmm;
buf->lb_len = ma->ma_lmm_size;
+ name = XATTR_NAME_LOV;
} else {
- buf->lb_buf = ma->ma_lmv;
+ struct lmv_user_md *lmu = &ma->ma_lmv->lmv_user_md;
+ struct lu_fid *pfid = &info->mti_tmp_fid1;
+ struct lu_name *pname = &info->mti_name;
+ const char dotdot[] = "..";
+ struct mdt_object *pobj;
+
+ buf->lb_buf = lmu;
buf->lb_len = ma->ma_lmv_size;
+ name = XATTR_NAME_DEFAULT_LMV;
+
+ if (fid_is_root(rr->rr_fid1)) {
+ lockpart |= MDS_INODELOCK_LOOKUP;
+ } else {
+ /* force client to update dir default layout */
+ fid_zero(pfid);
+ pname->ln_name = dotdot;
+ pname->ln_namelen = sizeof(dotdot);
+ rc = mdo_lookup(info->mti_env,
+ mdt_object_child(mo), pname,
+ pfid, NULL);
+ if (rc)
+ GOTO(out_put, rc);
+
+ pobj = mdt_object_find(info->mti_env, mdt,
+ pfid);
+ if (IS_ERR(pobj))
+ GOTO(out_put, rc = PTR_ERR(pobj));
+
+ if (mdt_object_remote(pobj))
+ rc = mdt_remote_object_lock(info, pobj,
+ mdt_object_fid(mo),
+ &lh->mlh_rreg_lh, LCK_EX,
+ MDS_INODELOCK_LOOKUP, false);
+ else
+ lockpart |= MDS_INODELOCK_LOOKUP;
+
+ mdt_object_put(info->mti_env, pobj);
+
+ if (rc)
+ GOTO(out_put, rc);
+ }
}
+
+ rc = mdt_object_lock(info, mo, lh, lockpart);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
rc = mo_xattr_set(info->mti_env, mdt_object_child(mo), buf,
- (ma->ma_valid & MA_LOV) ?
- XATTR_NAME_LOV : XATTR_NAME_DEFAULT_LMV,
- 0);
+ name, 0);
mdt_object_unlock(info, mo, lh, rc);
if (rc)
if (ma->ma_attr_flags & MDS_DATA_MODIFIED)
rc = mdt_add_dirty_flag(info, mo, ma);
- ma->ma_need = MA_INODE;
- ma->ma_valid = 0;
+ ma->ma_need = MA_INODE;
+ ma->ma_valid = 0;
rc = mdt_attr_get_complex(info, mo, ma);
if (rc != 0)
GOTO(out_put, rc);
mdt_object_put(info->mti_env, mo);
out:
if (rc == 0)
- mdt_counter_incr(req, LPROC_MDT_SETATTR);
+ mdt_counter_incr(req, LPROC_MDT_SETATTR,
+ ktime_us_delta(ktime_get(), kstart));
- mdt_client_compatibility(info);
- rc2 = mdt_fix_reply(info);
- if (rc == 0)
- rc = rc2;
- return rc;
+ mdt_client_compatibility(info);
+ rc2 = mdt_fix_reply(info);
+ if (rc == 0)
+ rc = rc2;
+ return rc;
}
static int mdt_reint_create(struct mdt_thread_info *info,
- struct mdt_lock_handle *lhc)
+ struct mdt_lock_handle *lhc)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- int rc;
- ENTRY;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ ktime_t kstart = ktime_get();
+ int rc;
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_CREATE))
- RETURN(err_serious(-ESTALE));
+ ENTRY;
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_CREATE))
+ RETURN(err_serious(-ESTALE));
if (info->mti_dlm_req)
ldlm_request_cancel(mdt_info_req(info),
switch (info->mti_attr.ma_attr.la_mode & S_IFMT) {
case S_IFDIR:
- mdt_counter_incr(req, LPROC_MDT_MKDIR);
- break;
- case S_IFREG:
- case S_IFLNK:
- case S_IFCHR:
- case S_IFBLK:
- case S_IFIFO:
+ case S_IFREG:
+ case S_IFLNK:
+ case S_IFCHR:
+ case S_IFBLK:
+ case S_IFIFO:
case S_IFSOCK:
- /* Special file should stay on the same node as parent. */
- mdt_counter_incr(req, LPROC_MDT_MKNOD);
break;
default:
CERROR("%s: Unsupported mode %o\n",
}
rc = mdt_create(info);
+ if (rc == 0) {
+ if ((info->mti_attr.ma_attr.la_mode & S_IFMT) == S_IFDIR)
+ mdt_counter_incr(req, LPROC_MDT_MKDIR,
+ ktime_us_delta(ktime_get(), kstart));
+ else
+ /* Special file should stay on the same node as parent*/
+ mdt_counter_incr(req, LPROC_MDT_MKNOD,
+ ktime_us_delta(ktime_get(), kstart));
+ }
+
RETURN(rc);
}
struct mdt_object *mc;
struct mdt_lock_handle *parent_lh;
struct mdt_lock_handle *child_lh;
- struct ldlm_enqueue_info *einfo = &info->mti_einfo;
+ struct ldlm_enqueue_info *einfo = &info->mti_einfo[0];
__u64 lock_ibits;
bool cos_incompat = false;
int no_name = 0;
+ ktime_t kstart = ktime_get();
int rc;
ENTRY;
-
DEBUG_REQ(D_INODE, req, "unlink "DFID"/"DNAME"", PFID(rr->rr_fid1),
PNAME(&rr->rr_name));
GOTO(put_parent, rc);
}
+ OBD_RACE(OBD_FAIL_MDS_REINT_OPEN);
+ OBD_RACE(OBD_FAIL_MDS_REINT_OPEN2);
relock:
parent_lh = &info->mti_lh[MDT_LH_PARENT];
mdt_lock_pdo_init(parent_lh, LCK_PW, &rr->rr_name);
if (rc != 0)
GOTO(put_parent, rc);
- /* lookup child object along with version checking */
- fid_zero(child_fid);
- rc = mdt_lookup_version_check(info, mp, &rr->rr_name, child_fid, 1);
- if (rc != 0) {
- /* Name might not be able to find during resend of
- * remote unlink, considering following case.
- * dir_A is a remote directory, the name entry of
- * dir_A is on MDT0, the directory is on MDT1,
- *
- * 1. client sends unlink req to MDT1.
- * 2. MDT1 sends name delete update to MDT0.
- * 3. name entry is being deleted in MDT0 synchronously.
- * 4. MDT1 is restarted.
- * 5. client resends unlink req to MDT1. So it can not
- * find the name entry on MDT0 anymore.
- * In this case, MDT1 only needs to destory the local
- * directory.
- * */
- if (mdt_object_remote(mp) && rc == -ENOENT &&
- !fid_is_zero(rr->rr_fid2) &&
- lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
- no_name = 1;
- *child_fid = *rr->rr_fid2;
- } else {
- GOTO(unlock_parent, rc);
- }
+ if (info->mti_spec.sp_cr_flags & MDS_OP_WITH_FID) {
+ *child_fid = *rr->rr_fid2;
+ } else {
+ /* lookup child object along with version checking */
+ fid_zero(child_fid);
+ rc = mdt_lookup_version_check(info, mp, &rr->rr_name, child_fid,
+ 1);
+ if (rc != 0) {
+ /* Name might not be able to find during resend of
+ * remote unlink, considering following case.
+ * dir_A is a remote directory, the name entry of
+ * dir_A is on MDT0, the directory is on MDT1,
+ *
+ * 1. client sends unlink req to MDT1.
+ * 2. MDT1 sends name delete update to MDT0.
+ * 3. name entry is being deleted in MDT0 synchronously.
+ * 4. MDT1 is restarted.
+ * 5. client resends unlink req to MDT1. So it can not
+ * find the name entry on MDT0 anymore.
+ * In this case, MDT1 only needs to destory the local
+ * directory.
+ */
+ if (mdt_object_remote(mp) && rc == -ENOENT &&
+ !fid_is_zero(rr->rr_fid2) &&
+ lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
+ no_name = 1;
+ *child_fid = *rr->rr_fid2;
+ } else {
+ GOTO(unlock_parent, rc);
+ }
+ }
}
if (!fid_is_md_operative(child_fid))
if (IS_ERR(mc))
GOTO(unlock_parent, rc = PTR_ERR(mc));
+ if (info->mti_spec.sp_cr_flags & MDS_OP_WITH_FID) {
+ /* In this case, child fid is embedded in the request, and we do
+ * not have a proper name as rr_name contains an encoded
+ * hash. So find name that matches provided hash.
+ */
+ if (!find_name_matching_hash(info, &rr->rr_name,
+ NULL, mc, false))
+ GOTO(put_child, rc = -ENOENT);
+ }
+
if (!cos_incompat) {
rc = mdt_object_striped(info, mc);
if (rc < 0)
- GOTO(unlock_parent, rc = PTR_ERR(mc));
+ GOTO(put_child, rc);
cos_incompat = rc;
if (cos_incompat) {
/* Return -ENOTSUPP for old client */
GOTO(put_child, rc = -ENOTSUPP);
- if (!md_capable(uc, CFS_CAP_SYS_ADMIN))
+ if (!cap_raised(uc->uc_cap, CAP_SYS_ADMIN))
GOTO(put_child, rc = -EPERM);
ma->ma_need = MA_INODE;
* this MDT. Since the unlink will happen on another MDT,
* it will release the LOOKUP lock right away. Then What
* would happen if another client try to grab the LOOKUP
- * lock at the same time with unlink XXX */
+ * lock at the same time with unlink XXX
+ */
mdt_object_lock(info, mc, child_lh, MDS_INODELOCK_LOOKUP);
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
LASSERT(repbody != NULL);
}
/* We used to acquire MDS_INODELOCK_FULL here but we can't do
* this now because a running HSM restore on the child (unlink
- * victim) will hold the layout lock. See LU-4002. */
+ * victim) will hold the layout lock. See LU-4002.
+ */
lock_ibits = MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE;
if (mdt_object_remote(mp)) {
/* Enqueue lookup lock from parent MDT */
rc = mdt_attr_get_complex(info, mc, ma);
if (rc)
GOTO(out_stat, rc);
- } else {
- mdt_dom_check_and_discard(info, mc);
+ } else if (mdt_dom_check_for_discard(info, mc)) {
+ mdt_dom_discard_data(info, mc);
}
mdt_handle_last_unlink(info, mc, ma);
if (ma->ma_valid & MA_INODE) {
switch (ma->ma_attr.la_mode & S_IFMT) {
case S_IFDIR:
- mdt_counter_incr(req, LPROC_MDT_RMDIR);
+ mdt_counter_incr(req, LPROC_MDT_RMDIR,
+ ktime_us_delta(ktime_get(), kstart));
break;
case S_IFREG:
case S_IFLNK:
case S_IFBLK:
case S_IFIFO:
case S_IFSOCK:
- mdt_counter_incr(req, LPROC_MDT_UNLINK);
+ mdt_counter_incr(req, LPROC_MDT_UNLINK,
+ ktime_us_delta(ktime_get(), kstart));
break;
default:
LASSERTF(0, "bad file type %o unlinking\n",
unlock_child:
mdt_reint_striped_unlock(info, mc, child_lh, einfo, rc);
put_child:
+ if (info->mti_spec.sp_cr_flags & MDS_OP_WITH_FID &&
+ info->mti_big_buf.lb_buf)
+ lu_buf_free(&info->mti_big_buf);
mdt_object_put(info->mti_env, mc);
unlock_parent:
mdt_object_unlock(info, mp, parent_lh, rc);
put_parent:
mdt_object_put(info->mti_env, mp);
- return rc;
+ CFS_RACE_WAKEUP(OBD_FAIL_OBD_ZERO_NLINK_RACE);
+ return rc;
}
/*
struct mdt_object *mp;
struct mdt_lock_handle *lhs;
struct mdt_lock_handle *lhp;
+ ktime_t kstart = ktime_get();
bool cos_incompat;
int rc;
- ENTRY;
+ ENTRY;
DEBUG_REQ(D_INODE, req, "link "DFID" to "DFID"/"DNAME,
PFID(rr->rr_fid1), PFID(rr->rr_fid2), PNAME(&rr->rr_name));
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_LINK))
RETURN(err_serious(-ENOENT));
+ if (OBD_FAIL_PRECHECK(OBD_FAIL_PTLRPC_RESEND_RACE) ||
+ OBD_FAIL_PRECHECK(OBD_FAIL_PTLRPC_ENQ_RESEND)) {
+ req->rq_no_reply = 1;
+ RETURN(err_serious(-ENOENT));
+ }
+
if (info->mti_dlm_req)
ldlm_request_cancel(req, info->mti_dlm_req, 0, LATF_SKIP);
/* Invalid case so return error immediately instead of
- * processing it */
+ * processing it
+ */
if (lu_fid_eq(rr->rr_fid1, rr->rr_fid2))
RETURN(-EPERM);
cos_incompat = (mdt_object_remote(mp) || mdt_object_remote(ms));
+ OBD_RACE(OBD_FAIL_MDS_LINK_RENAME_RACE);
+
lhp = &info->mti_lh[MDT_LH_PARENT];
mdt_lock_pdo_init(lhp, LCK_PW, &rr->rr_name);
rc = mdt_reint_object_lock(info, mp, lhp, MDS_INODELOCK_UPDATE,
mdt_object_child(ms), &rr->rr_name, ma);
if (rc == 0)
- mdt_counter_incr(req, LPROC_MDT_LINK);
+ mdt_counter_incr(req, LPROC_MDT_LINK,
+ ktime_us_delta(ktime_get(), kstart));
EXIT;
unlock_source:
* going to be sent to client. If it is - mdt_intent_policy() path will
* fix it up and turn FL_LOCAL flag off.
*/
- rc = mdt_fid_lock(ns, &lh->mlh_reg_lh, lh->mlh_reg_mode, policy,
- res, dlmflags, &info->mti_exp->exp_handle.h_cookie);
+ rc = mdt_fid_lock(info->mti_env, ns, &lh->mlh_reg_lh, lh->mlh_reg_mode,
+ policy, res, dlmflags,
+ &info->mti_exp->exp_handle.h_cookie);
return rc;
}
struct lustre_handle *lh)
{
int rc;
- ENTRY;
+ ENTRY;
if (mdt_seq_site(info->mti_mdt)->ss_node_id != 0) {
struct lu_fid *fid = &info->mti_tmp_fid1;
struct mdt_object *obj;
/* XXX, right now, it has to use object API to
* enqueue lock cross MDT, so it will enqueue
- * rename lock(with LUSTRE_BFL_FID) by root object */
+ * rename lock(with LUSTRE_BFL_FID) by root object
+ */
lu_root_fid(fid);
obj = mdt_object_find(info->mti_env, info->mti_mdt, fid);
if (IS_ERR(obj))
__u64 flags = 0;
fid_build_reg_res_name(&LUSTRE_BFL_FID, res_id);
- memset(policy, 0, sizeof *policy);
+ memset(policy, 0, sizeof(*policy));
policy->l_inodebits.bits = MDS_INODELOCK_UPDATE;
flags = LDLM_FL_LOCAL_ONLY | LDLM_FL_ATOMIC_CB;
- rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, policy,
- LCK_EX, &flags, ldlm_blocking_ast,
- ldlm_completion_ast, NULL, NULL, 0,
- LVB_T_NONE,
- &info->mti_exp->exp_handle.h_cookie,
- lh);
+ rc = ldlm_cli_enqueue_local(info->mti_env, ns, res_id,
+ LDLM_IBITS, policy, LCK_EX, &flags,
+ ldlm_blocking_ast,
+ ldlm_completion_ast, NULL, NULL, 0,
+ LVB_T_NONE,
+ &info->mti_exp->exp_handle.h_cookie,
+ lh);
RETURN(rc);
}
RETURN(rc);
EXIT;
}
+static struct mdt_object *mdt_parent_find_check(struct mdt_thread_info *info,
+ const struct lu_fid *fid,
+ int idx)
+{
+ struct mdt_object *dir;
+ int rc;
+
+ ENTRY;
+ dir = mdt_object_find(info->mti_env, info->mti_mdt, fid);
+ if (IS_ERR(dir))
+ RETURN(dir);
+
+ /* check early, the real version will be saved after locking */
+ rc = mdt_version_get_check(info, dir, idx);
+ if (rc)
+ GOTO(out_put, rc);
+
+ if (!mdt_object_exists(dir))
+ GOTO(out_put, rc = -ENOENT);
+
+ if (!S_ISDIR(lu_object_attr(&dir->mot_obj)))
+ GOTO(out_put, rc = -ENOTDIR);
+
+ RETURN(dir);
+out_put:
+ mdt_object_put(info->mti_env, dir);
+ return ERR_PTR(rc);
+}
+
/*
- * This is is_subdir() variant, it is CMD if cmm forwards it to correct
- * target. Source should not be ancestor of target dir. May be other rename
- * checks can be moved here later.
+ * in case obj is remote obj on its parent, revoke LOOKUP lock,
+ * herein we don't really check it, just do revoke.
*/
-static int mdt_is_subdir(struct mdt_thread_info *info,
- struct mdt_object *dir,
- const struct lu_fid *fid)
+int mdt_revoke_remote_lookup_lock(struct mdt_thread_info *info,
+ struct mdt_object *pobj,
+ struct mdt_object *obj)
{
- struct lu_fid dir_fid = dir->mot_header.loh_fid;
- int rc = 0;
- ENTRY;
+ struct mdt_lock_handle *lh = &info->mti_lh[MDT_LH_LOCAL];
+ int rc;
- /* If the source and target are in the same directory, they can not
- * be parent/child relationship, so subdir check is not needed */
- if (lu_fid_eq(&dir_fid, fid))
- return 0;
+ mdt_lock_handle_init(lh);
+ mdt_lock_reg_init(lh, LCK_EX);
- if (!mdt_object_exists(dir))
- RETURN(-ENOENT);
-
- rc = mdo_is_subdir(info->mti_env, mdt_object_child(dir),
- fid, &dir_fid);
- if (rc < 0) {
- CERROR("%s: failed subdir check in "DFID" for "DFID
- ": rc = %d\n", mdt_obd_name(info->mti_mdt),
- PFID(&dir_fid), PFID(fid), rc);
- /* Return EINVAL only if a parent is the @fid */
- if (rc == -EINVAL)
- rc = -EIO;
+ if (mdt_object_remote(pobj)) {
+ /* don't bother to check if pobj and obj are on the same MDT. */
+ rc = mdt_remote_object_lock(info, pobj, mdt_object_fid(obj),
+ &lh->mlh_rreg_lh, LCK_EX,
+ MDS_INODELOCK_LOOKUP, false);
+ } else if (mdt_object_remote(obj)) {
+ struct ldlm_res_id *res = &info->mti_res_id;
+ union ldlm_policy_data *policy = &info->mti_policy;
+ __u64 dlmflags = LDLM_FL_LOCAL_ONLY | LDLM_FL_ATOMIC_CB |
+ LDLM_FL_COS_INCOMPAT;
+
+ fid_build_reg_res_name(mdt_object_fid(obj), res);
+ memset(policy, 0, sizeof(*policy));
+ policy->l_inodebits.bits = MDS_INODELOCK_LOOKUP;
+ rc = mdt_fid_lock(info->mti_env, info->mti_mdt->mdt_namespace,
+ &lh->mlh_reg_lh, LCK_EX, policy, res,
+ dlmflags, NULL);
} else {
- /* check the found fid */
- if (lu_fid_eq(&dir_fid, fid))
- rc = -EINVAL;
+ /* do nothing if both are local */
+ return 0;
}
- RETURN(rc);
+ if (rc != ELDLM_OK)
+ return rc;
+
+ /*
+ * TODO, currently we don't save this lock because there is no place to
+ * hold this lock handle, but to avoid race we need to save this lock.
+ */
+ mdt_object_unlock(info, NULL, lh, 1);
+
+ return 0;
}
-/* Update object linkEA */
-struct mdt_lock_list {
- struct mdt_object *mll_obj;
- struct mdt_lock_handle mll_lh;
- struct list_head mll_list;
+/*
+ * operation may takes locks of linkea, or directory stripes, group them in
+ * different list.
+ */
+struct mdt_sub_lock {
+ struct mdt_object *msl_obj;
+ struct mdt_lock_handle msl_lh;
+ struct list_head msl_linkage;
};
static void mdt_unlock_list(struct mdt_thread_info *info,
- struct list_head *list, int rc)
+ struct list_head *list, int decref)
{
- struct mdt_lock_list *mll;
- struct mdt_lock_list *mll2;
+ struct mdt_sub_lock *msl;
+ struct mdt_sub_lock *tmp;
- list_for_each_entry_safe(mll, mll2, list, mll_list) {
- mdt_object_unlock_put(info, mll->mll_obj, &mll->mll_lh, rc);
- list_del(&mll->mll_list);
- OBD_FREE_PTR(mll);
+ list_for_each_entry_safe(msl, tmp, list, msl_linkage) {
+ mdt_object_unlock_put(info, msl->msl_obj, &msl->msl_lh, decref);
+ list_del(&msl->msl_linkage);
+ OBD_FREE_PTR(msl);
}
}
-static int mdt_lock_objects_in_linkea(struct mdt_thread_info *info,
- struct mdt_object *obj,
- struct mdt_object *pobj,
- struct list_head *lock_list)
+static inline void mdt_migrate_object_unlock(struct mdt_thread_info *info,
+ struct mdt_object *obj,
+ struct mdt_lock_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ struct list_head *slave_locks,
+ int decref)
{
- struct lu_buf *buf = &info->mti_big_buf;
- struct linkea_data ldata = { NULL };
- int count;
- int retry_count;
- int rc;
- ENTRY;
+ if (mdt_object_remote(obj)) {
+ mdt_unlock_list(info, slave_locks, decref);
+ mdt_object_unlock(info, obj, lh, decref);
+ } else {
+ mdt_reint_striped_unlock(info, obj, lh, einfo, decref);
+ }
+}
+
+/*
+ * lock parents of links, and also check whether total locks don't exceed
+ * RS_MAX_LOCKS.
+ *
+ * \retval 0 on success, and locks can be saved in ptlrpc_reply_stat
+ * \retval 1 on success, but total lock count may exceed RS_MAX_LOCKS
+ * \retval -ev negative errno upon error
+ */
+static int mdt_link_parents_lock(struct mdt_thread_info *info,
+ struct mdt_object *pobj,
+ const struct md_attr *ma,
+ struct mdt_object *obj,
+ struct mdt_lock_handle *lhp,
+ struct ldlm_enqueue_info *peinfo,
+ struct list_head *parent_slave_locks,
+ struct list_head *link_locks)
+{
+ struct mdt_device *mdt = info->mti_mdt;
+ struct lu_buf *buf = &info->mti_big_buf;
+ struct lu_name *lname = &info->mti_name;
+ struct linkea_data ldata = { NULL };
+ bool blocked = false;
+ int local_lnkp_cnt = 0;
+ int rc;
+ ENTRY;
if (S_ISDIR(lu_object_attr(&obj->mot_obj)))
RETURN(0);
- buf = lu_buf_check_and_alloc(buf, PATH_MAX);
+ buf = lu_buf_check_and_alloc(buf, MAX_LINKEA_SIZE);
if (buf->lb_buf == NULL)
RETURN(-ENOMEM);
ldata.ld_buf = buf;
rc = mdt_links_read(info, obj, &ldata);
- if (rc != 0) {
+ if (rc) {
if (rc == -ENOENT || rc == -ENODATA)
rc = 0;
RETURN(rc);
}
- /* ignore the migrating parent(@pobj) */
- retry_count = ldata.ld_leh->leh_reccount - 1;
-
-again:
- LASSERT(ldata.ld_leh != NULL);
- ldata.ld_lee = (struct link_ea_entry *)(ldata.ld_leh + 1);
- for (count = 0; count < ldata.ld_leh->leh_reccount; count++) {
- struct mdt_device *mdt = info->mti_mdt;
- struct mdt_object *mdt_pobj;
- struct mdt_lock_list *mll;
- struct lu_name name;
- struct lu_fid fid;
+ for (linkea_first_entry(&ldata); ldata.ld_lee && !rc;
+ linkea_next_entry(&ldata)) {
+ struct mdt_object *lnkp;
+ struct mdt_sub_lock *msl;
+ struct lu_fid fid;
__u64 ibits;
- linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
- &name, &fid);
- mdt_pobj = mdt_object_find(info->mti_env, mdt, &fid);
- if (IS_ERR(mdt_pobj)) {
- CWARN("%s: cannot find obj "DFID": rc = %ld\n",
- mdt_obd_name(mdt), PFID(&fid), PTR_ERR(mdt_pobj));
- goto next;
+ linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, lname,
+ &fid);
+
+ /* check if it's also linked to parent */
+ if (lu_fid_eq(mdt_object_fid(pobj), &fid)) {
+ CDEBUG(D_INFO, "skip parent "DFID", reovke "DNAME"\n",
+ PFID(&fid), PNAME(lname));
+ /* in case link is remote object, revoke LOOKUP lock */
+ rc = mdt_revoke_remote_lookup_lock(info, pobj, obj);
+ continue;
}
- if (!mdt_object_exists(mdt_pobj)) {
- CDEBUG(D_INFO, "%s: obj "DFID" does not exist\n",
- mdt_obd_name(mdt), PFID(&fid));
- mdt_object_put(info->mti_env, mdt_pobj);
- goto next;
+ lnkp = NULL;
+
+ /* check if it's linked to a stripe of parent */
+ if (ma->ma_valid & MA_LMV) {
+ struct lmv_mds_md_v1 *lmv = &ma->ma_lmv->lmv_md_v1;
+ struct lu_fid *stripe_fid = &info->mti_tmp_fid1;
+ int j = 0;
+
+ for (; j < le32_to_cpu(lmv->lmv_stripe_count); j++) {
+ fid_le_to_cpu(stripe_fid,
+ &lmv->lmv_stripe_fids[j]);
+ if (lu_fid_eq(stripe_fid, &fid)) {
+ CDEBUG(D_INFO, "skip stripe "DFID
+ ", reovke "DNAME"\n",
+ PFID(&fid), PNAME(lname));
+ lnkp = mdt_object_find(info->mti_env,
+ mdt, &fid);
+ if (IS_ERR(lnkp))
+ GOTO(out, rc = PTR_ERR(lnkp));
+ break;
+ }
+ }
+
+ if (lnkp) {
+ rc = mdt_revoke_remote_lookup_lock(info, lnkp,
+ obj);
+ mdt_object_put(info->mti_env, lnkp);
+ continue;
+ }
}
- /* Check if the object already exists in the list */
- list_for_each_entry(mll, lock_list, mll_list) {
- if (mll->mll_obj == mdt_pobj) {
- mdt_object_put(info->mti_env, mdt_pobj);
- goto next;
+ /* Check if it's already locked */
+ list_for_each_entry(msl, link_locks, msl_linkage) {
+ if (lu_fid_eq(mdt_object_fid(msl->msl_obj), &fid)) {
+ CDEBUG(D_INFO,
+ DFID" was locked, revoke "DNAME"\n",
+ PFID(&fid), PNAME(lname));
+ lnkp = msl->msl_obj;
+ break;
}
}
- if (mdt_pobj == pobj) {
- CDEBUG(D_INFO, "%s: skipping parent obj "DFID"\n",
- mdt_obd_name(mdt), PFID(&fid));
- mdt_object_put(info->mti_env, mdt_pobj);
- goto next;
+ if (lnkp) {
+ rc = mdt_revoke_remote_lookup_lock(info, lnkp, obj);
+ continue;
}
- OBD_ALLOC_PTR(mll);
- if (mll == NULL) {
- mdt_object_put(info->mti_env, mdt_pobj);
- GOTO(out, rc = -ENOMEM);
+ CDEBUG(D_INFO, "lock "DFID":"DNAME"\n",
+ PFID(&fid), PNAME(lname));
+
+ lnkp = mdt_object_find(info->mti_env, mdt, &fid);
+ if (IS_ERR(lnkp)) {
+ CWARN("%s: cannot find obj "DFID": %ld\n",
+ mdt_obd_name(mdt), PFID(&fid), PTR_ERR(lnkp));
+ continue;
}
- /* Since this needs to lock all of objects in linkea, to avoid
- * deadlocks, because it does not follow parent-child order as
- * other MDT operation, let's use try_lock here and if the lock
- * cannot be gotten because of conflicting locks, then drop all
- * current locks, send an AST to the client, and start again. */
- mdt_lock_pdo_init(&mll->mll_lh, LCK_PW, &name);
+ if (!mdt_object_exists(lnkp)) {
+ CDEBUG(D_INFO, DFID" doesn't exist, skip "DNAME"\n",
+ PFID(&fid), PNAME(lname));
+ mdt_object_put(info->mti_env, lnkp);
+ continue;
+ }
+
+ if (!mdt_object_remote(lnkp))
+ local_lnkp_cnt++;
+
+ OBD_ALLOC_PTR(msl);
+ if (msl == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ /*
+ * we can't follow parent-child lock order like other MD
+ * operations, use lock_try here to avoid deadlock, if the lock
+ * cannot be taken, drop all locks taken, revoke the blocked
+ * one, and continue processing the remaining entries, and in
+ * the end of the loop restart from beginning.
+ */
+ mdt_lock_pdo_init(&msl->msl_lh, LCK_PW, lname);
ibits = 0;
- rc = mdt_object_lock_try(info, mdt_pobj, &mll->mll_lh, &ibits,
+ rc = mdt_object_lock_try(info, lnkp, &msl->msl_lh, &ibits,
MDS_INODELOCK_UPDATE, true);
if (!(ibits & MDS_INODELOCK_UPDATE)) {
- mdt_unlock_list(info, lock_list, 0);
- CDEBUG(D_INFO, "%s: busy lock on "DFID" %s retry %d\n",
- mdt_obd_name(mdt), PFID(&fid), name.ln_name,
- retry_count);
+ CDEBUG(D_INFO, "busy lock on "DFID" "DNAME"\n",
+ PFID(&fid), PNAME(lname));
- if (retry_count == 0) {
- mdt_object_put(info->mti_env, mdt_pobj);
- OBD_FREE_PTR(mll);
- GOTO(out, rc = -EBUSY);
- }
+ mdt_unlock_list(info, link_locks, 1);
+ /* also unlock parent locks to avoid deadlock */
+ if (!blocked)
+ mdt_migrate_object_unlock(info, pobj, lhp,
+ peinfo,
+ parent_slave_locks,
+ 1);
- mdt_lock_pdo_init(&mll->mll_lh, LCK_PW, &name);
- rc = mdt_object_lock(info, mdt_pobj, &mll->mll_lh,
+ blocked = true;
+
+ mdt_lock_pdo_init(&msl->msl_lh, LCK_PW, lname);
+ rc = mdt_object_lock(info, lnkp, &msl->msl_lh,
MDS_INODELOCK_UPDATE);
- if (rc != 0) {
- mdt_object_put(info->mti_env, mdt_pobj);
- OBD_FREE_PTR(mll);
+ if (rc) {
+ mdt_object_put(info->mti_env, lnkp);
+ OBD_FREE_PTR(msl);
GOTO(out, rc);
}
- if (mdt_object_remote(mdt_pobj)) {
+ if (mdt_object_remote(lnkp)) {
struct ldlm_lock *lock;
- /* For remote object, Set lock to cb_atomic,
+ /*
+ * for remote object, set lock cb_atomic,
* so lock can be released in blocking_ast()
- * immediately, then the next try_lock will
- * have better chance to succeds */
- lock =
- ldlm_handle2lock(&mll->mll_lh.mlh_rreg_lh);
+ * immediately, then the next lock_try will
+ * have better chance of success.
+ */
+ lock = ldlm_handle2lock(
+ &msl->msl_lh.mlh_rreg_lh);
LASSERT(lock != NULL);
lock_res_and_lock(lock);
ldlm_set_atomic_cb(lock);
unlock_res_and_lock(lock);
LDLM_LOCK_PUT(lock);
}
- mdt_object_unlock_put(info, mdt_pobj, &mll->mll_lh, rc);
- OBD_FREE_PTR(mll);
- retry_count--;
- goto again;
+
+ mdt_object_unlock_put(info, lnkp, &msl->msl_lh, 1);
+ OBD_FREE_PTR(msl);
+ continue;
}
- rc = 0;
- INIT_LIST_HEAD(&mll->mll_list);
- mll->mll_obj = mdt_pobj;
- list_add_tail(&mll->mll_list, lock_list);
-next:
- ldata.ld_lee = (struct link_ea_entry *)((char *)ldata.ld_lee +
- ldata.ld_reclen);
+
+ INIT_LIST_HEAD(&msl->msl_linkage);
+ msl->msl_obj = lnkp;
+ list_add_tail(&msl->msl_linkage, link_locks);
+
+ rc = mdt_revoke_remote_lookup_lock(info, lnkp, obj);
}
+
+ if (blocked)
+ GOTO(out, rc = -EBUSY);
+
+ EXIT;
out:
- if (rc != 0)
- mdt_unlock_list(info, lock_list, rc);
- RETURN(rc);
+ if (rc) {
+ mdt_unlock_list(info, link_locks, rc);
+ } else if (local_lnkp_cnt > RS_MAX_LOCKS - 5) {
+ CDEBUG(D_INFO, "Too many links (%d), sync operations\n",
+ local_lnkp_cnt);
+ /*
+ * parent may have 3 local objects: master object and 2 stripes
+ * (if it's being migrated too); source may have 1 local objects
+ * as regular file; target has 1 local object.
+ * Note, source may have 2 local locks if it is directory but it
+ * can't have hardlinks, so it is not considered here.
+ */
+ rc = 1;
+ }
+ return rc;
}
-/* migrate files from one MDT to another MDT */
-static int mdt_reint_migrate_internal(struct mdt_thread_info *info,
- struct mdt_lock_handle *lhc)
+static int mdt_lock_remote_slaves(struct mdt_thread_info *info,
+ struct mdt_object *obj,
+ const struct md_attr *ma,
+ struct list_head *slave_locks)
{
- struct mdt_reint_record *rr = &info->mti_rr;
- struct md_attr *ma = &info->mti_attr;
- struct mdt_object *msrcdir;
- struct mdt_object *mold;
- struct mdt_object *mnew = NULL;
- struct mdt_lock_handle *lh_dirp;
- struct mdt_lock_handle *lh_childp;
- struct mdt_lock_handle *lh_tgtp = NULL;
- struct lu_fid *old_fid = &info->mti_tmp_fid1;
- struct list_head lock_list;
- __u64 lock_ibits;
- struct ldlm_lock *lease = NULL;
- bool lock_open_sem = false;
- int rc;
+ struct mdt_device *mdt = info->mti_mdt;
+ const struct lmv_mds_md_v1 *lmv = &ma->ma_lmv->lmv_md_v1;
+ struct lu_fid *fid = &info->mti_tmp_fid1;
+ struct mdt_object *slave;
+ struct mdt_sub_lock *msl;
+ int i;
+ int rc;
+
ENTRY;
+ LASSERT(mdt_object_remote(obj));
+ LASSERT(ma->ma_valid & MA_LMV);
+ LASSERT(lmv);
+
+ if (!lmv_is_sane(lmv))
+ RETURN(-EINVAL);
+
+ for (i = 0; i < le32_to_cpu(lmv->lmv_stripe_count); i++) {
+ fid_le_to_cpu(fid, &lmv->lmv_stripe_fids[i]);
+
+ if (!fid_is_sane(fid))
+ continue;
+
+ slave = mdt_object_find(info->mti_env, mdt, fid);
+ if (IS_ERR(slave))
+ GOTO(out, rc = PTR_ERR(slave));
+
+ OBD_ALLOC_PTR(msl);
+ if (!msl) {
+ mdt_object_put(info->mti_env, slave);
+ GOTO(out, rc = -ENOMEM);
+ }
+
+ mdt_lock_reg_init(&msl->msl_lh, LCK_EX);
+ rc = mdt_reint_object_lock(info, slave, &msl->msl_lh,
+ MDS_INODELOCK_UPDATE, true);
+ if (rc) {
+ OBD_FREE_PTR(msl);
+ mdt_object_put(info->mti_env, slave);
+ GOTO(out, rc);
+ }
+
+ INIT_LIST_HEAD(&msl->msl_linkage);
+ msl->msl_obj = slave;
+ list_add_tail(&msl->msl_linkage, slave_locks);
+ }
+ EXIT;
+
+out:
+ if (rc)
+ mdt_unlock_list(info, slave_locks, rc);
+ return rc;
+}
+
+/* lock parent and its stripes */
+static int mdt_migrate_parent_lock(struct mdt_thread_info *info,
+ struct mdt_object *obj,
+ const struct md_attr *ma,
+ struct mdt_lock_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ struct list_head *slave_locks)
+{
+ int rc;
+
+ if (mdt_object_remote(obj)) {
+ rc = mdt_remote_object_lock(info, obj, mdt_object_fid(obj),
+ &lh->mlh_rreg_lh, LCK_PW,
+ MDS_INODELOCK_UPDATE, false);
+ if (rc != ELDLM_OK)
+ return rc;
+
+ /*
+ * if obj is remote and striped, lock its stripes explicitly
+ * because it's not striped in LOD layer on this MDT.
+ */
+ if (ma->ma_valid & MA_LMV) {
+ rc = mdt_lock_remote_slaves(info, obj, ma, slave_locks);
+ if (rc)
+ mdt_object_unlock(info, obj, lh, rc);
+ }
+ } else {
+ rc = mdt_reint_striped_lock(info, obj, lh, MDS_INODELOCK_UPDATE,
+ einfo, true);
+ }
+
+ return rc;
+}
+
+/*
+ * in migration, object may be remote, and we need take full lock of it and its
+ * stripes if it's directory, besides, object may be a remote object on its
+ * parent, revoke its LOOKUP lock on where its parent is located.
+ */
+static int mdt_migrate_object_lock(struct mdt_thread_info *info,
+ struct mdt_object *pobj,
+ struct mdt_object *obj,
+ struct mdt_lock_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ struct list_head *slave_locks)
+{
+ int rc;
+
+ if (mdt_object_remote(obj)) {
+ rc = mdt_revoke_remote_lookup_lock(info, pobj, obj);
+ if (rc)
+ return rc;
+
+ rc = mdt_remote_object_lock(info, obj, mdt_object_fid(obj),
+ &lh->mlh_rreg_lh, LCK_EX,
+ MDS_INODELOCK_FULL, false);
+ if (rc != ELDLM_OK)
+ return rc;
+
+ /*
+ * if obj is remote and striped, lock its stripes explicitly
+ * because it's not striped in LOD layer on this MDT.
+ */
+ if (S_ISDIR(lu_object_attr(&obj->mot_obj))) {
+ struct md_attr *ma = &info->mti_attr;
+
+ rc = mdt_stripe_get(info, obj, ma, XATTR_NAME_LMV);
+ if (rc) {
+ mdt_object_unlock(info, obj, lh, rc);
+ return rc;
+ }
+
+ if (ma->ma_valid & MA_LMV) {
+ rc = mdt_lock_remote_slaves(info, obj, ma,
+ slave_locks);
+ if (rc)
+ mdt_object_unlock(info, obj, lh, rc);
+ }
+ }
+ } else {
+ if (mdt_object_remote(pobj)) {
+ rc = mdt_revoke_remote_lookup_lock(info, pobj, obj);
+ if (rc)
+ return rc;
+ }
+
+ rc = mdt_reint_striped_lock(info, obj, lh, MDS_INODELOCK_FULL,
+ einfo, true);
+ }
+
+ return rc;
+}
+
+/*
+ * lookup source by name, if parent is striped directory, we need to find the
+ * corresponding stripe where source is located, and then lookup there.
+ *
+ * besides, if parent is migrating too, and file is already in target stripe,
+ * this should be a redo of 'lfs migrate' on client side.
+ */
+static int mdt_migrate_lookup(struct mdt_thread_info *info,
+ struct mdt_object *pobj,
+ const struct md_attr *ma,
+ const struct lu_name *lname,
+ struct mdt_object **spobj,
+ struct mdt_object **sobj)
+{
+ const struct lu_env *env = info->mti_env;
+ struct lu_fid *fid = &info->mti_tmp_fid1;
+ struct mdt_object *stripe;
+ int rc;
+
+ if (ma->ma_valid & MA_LMV) {
+ /* if parent is striped, lookup on corresponding stripe */
+ struct lmv_mds_md_v1 *lmv = &ma->ma_lmv->lmv_md_v1;
+
+ if (!lmv_is_sane(lmv))
+ return -EBADF;
+
+ rc = lmv_name_to_stripe_index_old(lmv, lname->ln_name,
+ lname->ln_namelen);
+ if (rc < 0)
+ return rc;
+
+ fid_le_to_cpu(fid, &lmv->lmv_stripe_fids[rc]);
+
+ stripe = mdt_object_find(env, info->mti_mdt, fid);
+ if (IS_ERR(stripe))
+ return PTR_ERR(stripe);
+
+ fid_zero(fid);
+ rc = mdo_lookup(env, mdt_object_child(stripe), lname, fid,
+ &info->mti_spec);
+ if (rc == -ENOENT && lmv_is_layout_changing(lmv)) {
+ /*
+ * if parent layout is changeing, and lookup child
+ * failed on source stripe, lookup again on target
+ * stripe, if it exists, it means previous migration
+ * was interrupted, and current file was migrated
+ * already.
+ */
+ mdt_object_put(env, stripe);
+
+ rc = lmv_name_to_stripe_index(lmv, lname->ln_name,
+ lname->ln_namelen);
+ if (rc < 0)
+ return rc;
+
+ fid_le_to_cpu(fid, &lmv->lmv_stripe_fids[rc]);
+
+ stripe = mdt_object_find(env, info->mti_mdt, fid);
+ if (IS_ERR(stripe))
+ return PTR_ERR(stripe);
+
+ fid_zero(fid);
+ rc = mdo_lookup(env, mdt_object_child(stripe), lname,
+ fid, &info->mti_spec);
+ mdt_object_put(env, stripe);
+ return rc ?: -EALREADY;
+ } else if (rc) {
+ mdt_object_put(env, stripe);
+ return rc;
+ }
+ } else {
+ fid_zero(fid);
+ rc = mdo_lookup(env, mdt_object_child(pobj), lname, fid,
+ &info->mti_spec);
+ if (rc)
+ return rc;
+
+ stripe = pobj;
+ mdt_object_get(env, stripe);
+ }
+
+ *spobj = stripe;
+
+ *sobj = mdt_object_find(env, info->mti_mdt, fid);
+ if (IS_ERR(*sobj)) {
+ mdt_object_put(env, stripe);
+ rc = PTR_ERR(*sobj);
+ *spobj = NULL;
+ *sobj = NULL;
+ }
+
+ return rc;
+}
+
+/* end lease and close file for regular file */
+static int mdd_migrate_close(struct mdt_thread_info *info,
+ struct mdt_object *obj)
+{
+ struct close_data *data;
+ struct mdt_body *repbody;
+ struct ldlm_lock *lease;
+ int rc;
+ int rc2;
+ rc = -EPROTO;
+ if (!req_capsule_field_present(info->mti_pill, &RMF_MDT_EPOCH,
+ RCL_CLIENT) ||
+ !req_capsule_field_present(info->mti_pill, &RMF_CLOSE_DATA,
+ RCL_CLIENT))
+ goto close;
+
+ data = req_capsule_client_get(info->mti_pill, &RMF_CLOSE_DATA);
+ if (!data)
+ goto close;
+
+ rc = -ESTALE;
+ lease = ldlm_handle2lock(&data->cd_handle);
+ if (!lease)
+ goto close;
+
+ /* check if the lease was already canceled */
+ lock_res_and_lock(lease);
+ rc = ldlm_is_cancel(lease);
+ unlock_res_and_lock(lease);
+
+ if (rc) {
+ rc = -EAGAIN;
+ LDLM_DEBUG(lease, DFID" lease broken",
+ PFID(mdt_object_fid(obj)));
+ }
+
+ /*
+ * 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_reprocess_all(lease->l_resource,
+ lease->l_policy_data.l_inodebits.bits);
+ LDLM_LOCK_PUT(lease);
+
+close:
+ rc2 = mdt_close_internal(info, mdt_info_req(info), NULL);
+ repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
+ repbody->mbo_valid |= OBD_MD_CLOSE_INTENT_EXECED;
+
+ return rc ?: rc2;
+}
+
+/*
+ * migrate file in below steps:
+ * 1. lock parent and its stripes
+ * 2. lookup source by name
+ * 3. lock parents of source links if source is not directory
+ * 4. reject if source is in HSM
+ * 5. take source open_sem and close file if source is regular file
+ * 6. lock source and its stripes if it's directory
+ * 7. lock target so subsequent change to it can trigger COS
+ * 8. migrate file
+ * 9. unlock above locks
+ * 10. sync device if source has links
+ */
+int mdt_reint_migrate(struct mdt_thread_info *info,
+ struct mdt_lock_handle *unused)
+{
+ const struct lu_env *env = info->mti_env;
+ struct mdt_device *mdt = info->mti_mdt;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct mdt_reint_record *rr = &info->mti_rr;
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct md_attr *ma = &info->mti_attr;
+ struct ldlm_enqueue_info *peinfo = &info->mti_einfo[0];
+ struct ldlm_enqueue_info *seinfo = &info->mti_einfo[1];
+ struct mdt_object *pobj;
+ struct mdt_object *spobj = NULL;
+ struct mdt_object *sobj = NULL;
+ struct mdt_object *tobj;
+ struct lustre_handle rename_lh = { 0 };
+ struct mdt_lock_handle *lhp;
+ struct mdt_lock_handle *lhs;
+ struct mdt_lock_handle *lht;
+ LIST_HEAD(parent_slave_locks);
+ LIST_HEAD(child_slave_locks);
+ LIST_HEAD(link_locks);
+ int lock_retries = 5;
+ bool open_sem_locked = false;
+ bool do_sync = false;
+ int rc;
+
+ ENTRY;
CDEBUG(D_INODE, "migrate "DFID"/"DNAME" to "DFID"\n", PFID(rr->rr_fid1),
PNAME(&rr->rr_name), PFID(rr->rr_fid2));
- /* 1: lock the source dir. */
- msrcdir = mdt_object_find(info->mti_env, info->mti_mdt, rr->rr_fid1);
- if (IS_ERR(msrcdir)) {
- CDEBUG(D_OTHER, "%s: cannot find source dir "DFID" : rc = %d\n",
- mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
- (int)PTR_ERR(msrcdir));
- RETURN(PTR_ERR(msrcdir));
+ if (info->mti_dlm_req)
+ ldlm_request_cancel(req, info->mti_dlm_req, 0, LATF_SKIP);
+
+ if (!fid_is_md_operative(rr->rr_fid1) ||
+ !fid_is_md_operative(rr->rr_fid2))
+ RETURN(-EPERM);
+
+ /* don't allow migrate . or .. */
+ if (lu_name_is_dot_or_dotdot(&rr->rr_name))
+ RETURN(-EBUSY);
+
+ if (!mdt->mdt_enable_remote_dir || !mdt->mdt_enable_dir_migration)
+ RETURN(-EPERM);
+
+ if (uc && !cap_raised(uc->uc_cap, CAP_SYS_ADMIN) &&
+ uc->uc_gid != mdt->mdt_enable_remote_dir_gid &&
+ mdt->mdt_enable_remote_dir_gid != -1)
+ RETURN(-EPERM);
+
+ /*
+ * Note: do not enqueue rename lock for replay request, because
+ * if other MDT holds rename lock, but being blocked to wait for
+ * this MDT to finish its recovery, and the failover MDT can not
+ * get rename lock, which will cause deadlock.
+ *
+ * req is NULL if this is called by directory auto-split.
+ */
+ if (req && !req_is_replay(req)) {
+ rc = mdt_rename_lock(info, &rename_lh);
+ if (rc != 0) {
+ CERROR("%s: can't lock FS for rename: rc = %d\n",
+ mdt_obd_name(info->mti_mdt), rc);
+ RETURN(rc);
+ }
}
- lh_dirp = &info->mti_lh[MDT_LH_PARENT];
- mdt_lock_pdo_init(lh_dirp, LCK_PW, &rr->rr_name);
- rc = mdt_reint_object_lock(info, msrcdir, lh_dirp, MDS_INODELOCK_UPDATE,
- true);
- if (rc)
- GOTO(out_put_parent, rc);
+ /* pobj is master object of parent */
+ pobj = mdt_object_find(env, mdt, rr->rr_fid1);
+ if (IS_ERR(pobj))
+ GOTO(unlock_rename, rc = PTR_ERR(pobj));
- if (!mdt_object_remote(msrcdir)) {
- rc = mdt_version_get_check_save(info, msrcdir, 0);
+ if (req) {
+ rc = mdt_version_get_check(info, pobj, 0);
if (rc)
- GOTO(out_unlock_parent, rc);
+ GOTO(put_parent, rc);
}
- /* 2: sanity check and find the object to be migrated. */
- fid_zero(old_fid);
- rc = mdt_lookup_version_check(info, msrcdir, &rr->rr_name, old_fid, 2);
- if (rc != 0)
- GOTO(out_unlock_parent, rc);
+ if (!mdt_object_exists(pobj))
+ GOTO(put_parent, rc = -ENOENT);
- if (lu_fid_eq(old_fid, rr->rr_fid1) || lu_fid_eq(old_fid, rr->rr_fid2))
- GOTO(out_unlock_parent, rc = -EINVAL);
+ if (!S_ISDIR(lu_object_attr(&pobj->mot_obj)))
+ GOTO(put_parent, rc = -ENOTDIR);
- if (!fid_is_md_operative(old_fid))
- GOTO(out_unlock_parent, rc = -EPERM);
+ rc = mdt_stripe_get(info, pobj, ma, XATTR_NAME_LMV);
+ if (rc)
+ GOTO(put_parent, rc);
- if (lu_fid_eq(old_fid, &info->mti_mdt->mdt_md_root_fid))
- GOTO(out_unlock_parent, rc = -EPERM);
+lock_parent:
+ /* lock parent object */
+ lhp = &info->mti_lh[MDT_LH_PARENT];
+ mdt_lock_reg_init(lhp, LCK_PW);
+ rc = mdt_migrate_parent_lock(info, pobj, ma, lhp, peinfo,
+ &parent_slave_locks);
+ if (rc)
+ GOTO(put_parent, rc);
- mold = mdt_object_find(info->mti_env, info->mti_mdt, old_fid);
- if (IS_ERR(mold))
- GOTO(out_unlock_parent, rc = PTR_ERR(mold));
+ /*
+ * spobj is the corresponding stripe against name if pobj is striped
+ * directory, which is the real parent, and no need to lock, because
+ * we've taken full lock of pobj.
+ */
+ rc = mdt_migrate_lookup(info, pobj, ma, &rr->rr_name, &spobj, &sobj);
+ if (rc)
+ GOTO(unlock_parent, rc);
+
+ /* lock parents of source links, and revoke LOOKUP lock of links */
+ rc = mdt_link_parents_lock(info, pobj, ma, sobj, lhp, peinfo,
+ &parent_slave_locks, &link_locks);
+ if (rc == -EBUSY && lock_retries-- > 0) {
+ mdt_object_put(env, sobj);
+ mdt_object_put(env, spobj);
+ goto lock_parent;
+ }
+
+ if (rc < 0)
+ GOTO(put_source, rc);
- if (mdt_object_remote(mold)) {
- CDEBUG(D_OTHER, "%s: source "DFID" is on the remote MDT\n",
- mdt_obd_name(info->mti_mdt), PFID(old_fid));
- GOTO(out_put_child, rc = -EREMOTE);
+ /*
+ * RS_MAX_LOCKS is the limit of number of locks that can be saved along
+ * with one request, if total lock count exceeds this limit, we will
+ * drop all locks after migration, and synchronous device in the end.
+ */
+ do_sync = rc;
+
+ /* TODO: DoM migration is not supported, migrate dirent only */
+ if (S_ISREG(lu_object_attr(&sobj->mot_obj))) {
+ rc = mdt_stripe_get(info, sobj, ma, XATTR_NAME_LOV);
+ if (rc)
+ GOTO(unlock_links, rc);
+
+ if (ma->ma_valid & MA_LOV && mdt_lmm_dom_stripesize(ma->ma_lmm))
+ info->mti_spec.sp_migrate_nsonly = 1;
+ } else if (S_ISDIR(lu_object_attr(&sobj->mot_obj))) {
+ rc = mdt_stripe_get(info, sobj, ma, XATTR_NAME_LMV);
+ if (rc)
+ GOTO(unlock_links, rc);
+
+ /* race with restripe/auto-split? */
+ if ((ma->ma_valid & MA_LMV) &&
+ lmv_is_restriping(&ma->ma_lmv->lmv_md_v1))
+ GOTO(unlock_links, rc = -EBUSY);
}
- if (S_ISREG(lu_object_attr(&mold->mot_obj)) &&
- !mdt_object_remote(msrcdir)) {
- CDEBUG(D_OTHER, "%s: parent "DFID" is still on the same"
- " MDT, which should be migrated first:"
- " rc = %d\n", mdt_obd_name(info->mti_mdt),
- PFID(mdt_object_fid(msrcdir)), -EPERM);
- GOTO(out_put_child, rc = -EPERM);
+ /* if migration HSM is allowed */
+ if (!mdt->mdt_opts.mo_migrate_hsm_allowed) {
+ ma->ma_need = MA_HSM;
+ ma->ma_valid = 0;
+ rc = mdt_attr_get_complex(info, sobj, ma);
+ if (rc)
+ GOTO(unlock_links, rc);
+
+ if ((ma->ma_valid & MA_HSM) && ma->ma_hsm.mh_flags != 0)
+ GOTO(unlock_links, rc = -EOPNOTSUPP);
}
- rc = mdt_remote_permission(info);
- if (rc != 0)
- GOTO(out_put_child, rc);
+ /* end lease and close file for regular file */
+ if (info->mti_spec.sp_migrate_close) {
+ /* try to hold open_sem so that nobody else can open the file */
+ if (!down_write_trylock(&sobj->mot_open_sem)) {
+ /* close anyway */
+ mdd_migrate_close(info, sobj);
+ GOTO(unlock_links, rc = -EBUSY);
+ } else {
+ open_sem_locked = true;
+ rc = mdd_migrate_close(info, sobj);
+ if (rc)
+ GOTO(unlock_open_sem, rc);
+ }
+ }
+
+ /* lock source */
+ lhs = &info->mti_lh[MDT_LH_OLD];
+ mdt_lock_reg_init(lhs, LCK_EX);
+ rc = mdt_migrate_object_lock(info, spobj, sobj, lhs, seinfo,
+ &child_slave_locks);
+ if (rc)
+ GOTO(unlock_open_sem, rc);
+
+ /* lock target */
+ tobj = mdt_object_find(env, mdt, rr->rr_fid2);
+ if (IS_ERR(tobj))
+ GOTO(unlock_source, rc = PTR_ERR(tobj));
+
+ lht = &info->mti_lh[MDT_LH_NEW];
+ mdt_lock_reg_init(lht, LCK_EX);
+ rc = mdt_reint_object_lock(info, tobj, lht, MDS_INODELOCK_FULL, true);
+ if (rc)
+ GOTO(put_target, rc);
+
+ /* Don't do lookup sanity check. We know name doesn't exist. */
+ info->mti_spec.sp_cr_lookup = 0;
+ info->mti_spec.sp_feat = &dt_directory_features;
+
+ rc = mdo_migrate(env, mdt_object_child(pobj),
+ mdt_object_child(sobj), &rr->rr_name,
+ mdt_object_child(tobj),
+ &info->mti_spec, ma);
+ if (!rc)
+ lprocfs_counter_incr(mdt->mdt_lu_dev.ld_obd->obd_md_stats,
+ LPROC_MDT_MIGRATE + LPROC_MD_LAST_OPC);
+ EXIT;
+
+ mdt_object_unlock(info, tobj, lht, rc);
+put_target:
+ mdt_object_put(env, tobj);
+unlock_source:
+ mdt_migrate_object_unlock(info, sobj, lhs, seinfo,
+ &child_slave_locks, rc);
+unlock_open_sem:
+ if (open_sem_locked)
+ up_write(&sobj->mot_open_sem);
+unlock_links:
+ /* if we've got too many locks to save into RPC,
+ * then just commit before the locks are released
+ */
+ if (!rc && do_sync)
+ mdt_device_sync(env, mdt);
+ mdt_unlock_list(info, &link_locks, do_sync ? 1 : rc);
+put_source:
+ mdt_object_put(env, sobj);
+ mdt_object_put(env, spobj);
+unlock_parent:
+ mdt_migrate_object_unlock(info, pobj, lhp, peinfo,
+ &parent_slave_locks, rc);
+put_parent:
+ mdt_object_put(env, pobj);
+unlock_rename:
+ if (lustre_handle_is_used(&rename_lh))
+ mdt_rename_unlock(&rename_lh);
+
+ return rc;
+}
+
+static int mdt_object_lock_save(struct mdt_thread_info *info,
+ struct mdt_object *dir,
+ struct mdt_lock_handle *lh,
+ int idx, bool cos_incompat)
+{
+ int rc;
- /* 3: iterate the linkea of the object and lock all of the objects */
- INIT_LIST_HEAD(&lock_list);
- rc = mdt_lock_objects_in_linkea(info, mold, msrcdir, &lock_list);
+ /* we lock the target dir if it is local */
+ rc = mdt_reint_object_lock(info, dir, lh, MDS_INODELOCK_UPDATE,
+ cos_incompat);
if (rc != 0)
- GOTO(out_put_child, rc);
+ return rc;
- if (info->mti_spec.sp_migrate_close) {
- struct close_data *data;
- struct mdt_body *repbody;
- bool lease_broken = false;
+ /* get and save correct version after locking */
+ mdt_version_get_save(info, dir, idx);
+ return 0;
+}
- if (!req_capsule_field_present(info->mti_pill, &RMF_MDT_EPOCH,
- RCL_CLIENT) ||
- !req_capsule_field_present(info->mti_pill, &RMF_CLOSE_DATA,
- RCL_CLIENT))
- GOTO(out_lease, rc = -EPROTO);
+/*
+ * determine lock order of sobj and tobj
+ *
+ * there are two situations we need to lock tobj before sobj:
+ * 1. sobj is child of tobj
+ * 2. sobj and tobj are stripes of a directory, and stripe index of sobj is
+ * larger than that of tobj
+ *
+ * \retval 1 lock tobj before sobj
+ * \retval 0 lock sobj before tobj
+ * \retval -ev negative errno upon error
+ */
+static int mdt_rename_determine_lock_order(struct mdt_thread_info *info,
+ struct mdt_object *sobj,
+ struct mdt_object *tobj)
+{
+ struct md_attr *ma = &info->mti_attr;
+ struct lu_fid *spfid = &info->mti_tmp_fid1;
+ struct lu_fid *tpfid = &info->mti_tmp_fid2;
+ struct lmv_mds_md_v1 *lmv;
+ __u32 sindex;
+ __u32 tindex;
+ int rc;
- data = req_capsule_client_get(info->mti_pill, &RMF_CLOSE_DATA);
- if (data == NULL)
- GOTO(out_lease, rc = -EPROTO);
+ /* sobj and tobj are the same */
+ if (sobj == tobj)
+ return 0;
- lease = ldlm_handle2lock(&data->cd_handle);
- if (lease == NULL)
- GOTO(out_lease, rc = -ESTALE);
+ if (fid_is_root(mdt_object_fid(sobj)))
+ return 0;
- /* try to hold open_sem so that nobody else can open the file */
- if (!down_write_trylock(&mold->mot_open_sem)) {
- ldlm_lock_cancel(lease);
- GOTO(out_lease, rc = -EBUSY);
- }
+ if (fid_is_root(mdt_object_fid(tobj)))
+ return 1;
- lock_open_sem = true;
- /* 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);
+ /* check whether sobj is child of tobj */
+ rc = mdo_is_subdir(info->mti_env, mdt_object_child(sobj),
+ mdt_object_fid(tobj));
+ if (rc < 0)
+ return rc;
- LDLM_DEBUG(lease, DFID " lease broken? %d",
- PFID(mdt_object_fid(mold)), lease_broken);
+ if (rc == 1)
+ return 1;
- /* 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);
+ /* check whether sobj and tobj are children of the same parent */
+ rc = mdt_attr_get_pfid(info, sobj, spfid);
+ if (rc)
+ return rc;
- if (lease_broken)
- GOTO(out_lease, rc = -EAGAIN);
-out_lease:
- rc = mdt_close_internal(info, mdt_info_req(info), NULL);
- repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
- repbody->mbo_valid |= OBD_MD_CLOSE_INTENT_EXECED;
- if (rc != 0)
- GOTO(out_unlock_list, rc);
- }
-
- /* 4: lock of the object migrated object */
- lh_childp = &info->mti_lh[MDT_LH_OLD];
- mdt_lock_reg_init(lh_childp, LCK_EX);
- lock_ibits = MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE |
- MDS_INODELOCK_LAYOUT;
- if (mdt_object_remote(msrcdir)) {
- /* Enqueue lookup lock from the parent MDT */
- rc = mdt_remote_object_lock(info, msrcdir, mdt_object_fid(mold),
- &lh_childp->mlh_rreg_lh,
- lh_childp->mlh_rreg_mode,
- MDS_INODELOCK_LOOKUP, false);
- if (rc != ELDLM_OK)
- GOTO(out_unlock_list, rc);
+ rc = mdt_attr_get_pfid(info, tobj, tpfid);
+ if (rc)
+ return rc;
- lock_ibits &= ~MDS_INODELOCK_LOOKUP;
- }
+ if (!lu_fid_eq(spfid, tpfid))
+ return 0;
- rc = mdt_reint_object_lock(info, mold, lh_childp, lock_ibits, true);
- if (rc != 0)
- GOTO(out_unlock_child, rc);
+ /* check whether sobj and tobj are sibling stripes */
+ rc = mdt_stripe_get(info, sobj, ma, XATTR_NAME_LMV);
+ if (rc)
+ return rc;
- /* Migration is incompatible with HSM. */
- ma->ma_need = MA_HSM;
- ma->ma_valid = 0;
- rc = mdt_attr_get_complex(info, mold, ma);
- if (rc != 0)
- GOTO(out_unlock_child, rc);
+ if (!(ma->ma_valid & MA_LMV))
+ return 0;
- if ((ma->ma_valid & MA_HSM) && ma->ma_hsm.mh_flags != 0) {
- rc = -ENOSYS;
- CDEBUG(D_OTHER,
- "%s: cannot migrate HSM archived file "DFID": rc = %d\n",
- mdt_obd_name(info->mti_mdt), PFID(old_fid), rc);
- GOTO(out_unlock_child, rc);
- }
+ lmv = &ma->ma_lmv->lmv_md_v1;
+ if (!(le32_to_cpu(lmv->lmv_magic) & LMV_MAGIC_STRIPE))
+ return 0;
+ sindex = le32_to_cpu(lmv->lmv_master_mdt_index);
- ma->ma_need = MA_LMV;
ma->ma_valid = 0;
- ma->ma_lmv = (union lmv_mds_md *)info->mti_xattr_buf;
- ma->ma_lmv_size = sizeof(info->mti_xattr_buf);
- rc = mdt_stripe_get(info, mold, ma, XATTR_NAME_LMV);
- if (rc != 0)
- GOTO(out_unlock_child, rc);
-
- if ((ma->ma_valid & MA_LMV)) {
- struct lmv_mds_md_v1 *lmm1;
-
- lmv_le_to_cpu(ma->ma_lmv, ma->ma_lmv);
- lmm1 = &ma->ma_lmv->lmv_md_v1;
- if (!(lmm1->lmv_hash_type & LMV_HASH_FLAG_MIGRATION)) {
- CDEBUG(D_OTHER, "%s: can not migrate striped dir "DFID
- ": rc = %d\n", mdt_obd_name(info->mti_mdt),
- PFID(mdt_object_fid(mold)), -EPERM);
- GOTO(out_unlock_child, rc = -EPERM);
- }
-
- if (!fid_is_sane(&lmm1->lmv_stripe_fids[1]))
- GOTO(out_unlock_child, rc = -EINVAL);
-
- mnew = mdt_object_find(info->mti_env, info->mti_mdt,
- &lmm1->lmv_stripe_fids[1]);
- if (IS_ERR(mnew))
- GOTO(out_unlock_child, rc = PTR_ERR(mnew));
-
- if (!mdt_object_remote(mnew)) {
- CDEBUG(D_OTHER,
- "%s: "DFID" being migrated is on this MDT:"
- " rc = %d\n", mdt_obd_name(info->mti_mdt),
- PFID(rr->rr_fid2), -EPERM);
- GOTO(out_put_new, rc = -EPERM);
- }
-
- lh_tgtp = &info->mti_lh[MDT_LH_CHILD];
- mdt_lock_reg_init(lh_tgtp, LCK_EX);
- rc = mdt_remote_object_lock(info, mnew,
- mdt_object_fid(mnew),
- &lh_tgtp->mlh_rreg_lh,
- lh_tgtp->mlh_rreg_mode,
- MDS_INODELOCK_UPDATE, false);
- if (rc != 0) {
- lh_tgtp = NULL;
- GOTO(out_put_new, rc);
- }
- } else {
- mnew = mdt_object_find(info->mti_env, info->mti_mdt,
- rr->rr_fid2);
- if (IS_ERR(mnew))
- GOTO(out_unlock_child, rc = PTR_ERR(mnew));
- if (!mdt_object_remote(mnew)) {
- CDEBUG(D_OTHER, "%s: Migration "DFID" is on this MDT:"
- " rc = %d\n", mdt_obd_name(info->mti_mdt),
- PFID(rr->rr_fid2), -EXDEV);
- GOTO(out_put_new, rc = -EXDEV);
- }
- }
-
- /* 5: migrate it */
- mdt_reint_init_ma(info, ma);
+ rc = mdt_stripe_get(info, tobj, ma, XATTR_NAME_LMV);
+ if (rc)
+ return rc;
- mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
- OBD_FAIL_MDS_REINT_RENAME_WRITE);
+ if (!(ma->ma_valid & MA_LMV))
+ return -ENODATA;
- rc = mdo_migrate(info->mti_env, mdt_object_child(msrcdir),
- mdt_object_child(mold), &rr->rr_name,
- mdt_object_child(mnew), ma);
- if (rc != 0)
- GOTO(out_unlock_new, rc);
+ lmv = &ma->ma_lmv->lmv_md_v1;
+ if (!(le32_to_cpu(lmv->lmv_magic) & LMV_MAGIC_STRIPE))
+ return -EINVAL;
+ tindex = le32_to_cpu(lmv->lmv_master_mdt_index);
-out_unlock_new:
- if (lh_tgtp != NULL)
- mdt_object_unlock(info, mnew, lh_tgtp, rc);
-out_put_new:
- if (mnew)
- mdt_object_put(info->mti_env, mnew);
-out_unlock_child:
- mdt_object_unlock(info, mold, lh_childp, rc);
-out_unlock_list:
- /* we don't really modify linkea objects, so we can safely decref these
- * locks, and this can avoid saving them as COS locks, which may prevent
- * subsequent migrate. */
- mdt_unlock_list(info, &lock_list, 1);
- if (lease != NULL) {
- ldlm_reprocess_all(lease->l_resource);
- LDLM_LOCK_PUT(lease);
- }
-
- if (lock_open_sem)
- up_write(&mold->mot_open_sem);
-out_put_child:
- mdt_object_put(info->mti_env, mold);
-out_unlock_parent:
- mdt_object_unlock(info, msrcdir, lh_dirp, rc);
-out_put_parent:
- mdt_object_put(info->mti_env, msrcdir);
+ /* check stripe index of sobj and tobj */
+ if (sindex == tindex)
+ return -EINVAL;
- RETURN(rc);
+ return sindex < tindex ? 0 : 1;
}
-static struct mdt_object *mdt_object_find_check(struct mdt_thread_info *info,
- const struct lu_fid *fid,
- int idx)
+/*
+ * lock rename source object.
+ *
+ * Both source and source parent may be remote, and source may be a remote
+ * object on source parent, to avoid overriding lock handle, store remote
+ * LOOKUP lock separately in @lhr.
+ *
+ * \retval 0 on success
+ * \retval -ev negative errno upon error
+ */
+static int mdt_rename_source_lock(struct mdt_thread_info *info,
+ struct mdt_object *parent,
+ struct mdt_object *child,
+ struct mdt_lock_handle *lhc,
+ struct mdt_lock_handle *lhr,
+ __u64 ibits,
+ bool cos_incompat)
{
- struct mdt_object *dir;
int rc;
- ENTRY;
- dir = mdt_object_find(info->mti_env, info->mti_mdt, fid);
- if (IS_ERR(dir))
- RETURN(dir);
+ rc = mdt_is_remote_object(info, parent, child);
+ if (rc < 0)
+ return rc;
- /* check early, the real version will be saved after locking */
- rc = mdt_version_get_check(info, dir, idx);
- if (rc)
- GOTO(out_put, rc);
+ if (rc) {
+ /* enqueue remote LOOKUP lock from the parent MDT */
+ __u64 rmt_ibits = MDS_INODELOCK_LOOKUP;
+
+ if (mdt_object_remote(parent)) {
+ rc = mdt_remote_object_lock(info, parent,
+ mdt_object_fid(child),
+ &lhr->mlh_rreg_lh,
+ lhr->mlh_rreg_mode,
+ rmt_ibits, false);
+ if (rc != ELDLM_OK)
+ return rc;
+ } else {
+ LASSERT(mdt_object_remote(child));
+ rc = mdt_object_local_lock(info, child, lhr,
+ &rmt_ibits, 0, true);
+ if (rc < 0)
+ return rc;
+ }
- RETURN(dir);
-out_put:
- mdt_object_put(info->mti_env, dir);
- return ERR_PTR(rc);
-}
+ ibits &= ~MDS_INODELOCK_LOOKUP;
+ }
-static int mdt_object_lock_save(struct mdt_thread_info *info,
- struct mdt_object *dir,
- struct mdt_lock_handle *lh,
- int idx, bool cos_incompat)
-{
- int rc;
+ if (mdt_object_remote(child)) {
+ rc = mdt_remote_object_lock(info, child, mdt_object_fid(child),
+ &lhc->mlh_rreg_lh,
+ lhc->mlh_rreg_mode,
+ ibits, false);
+ if (rc == ELDLM_OK)
+ rc = 0;
+ } else {
+ rc = mdt_reint_object_lock(info, child, lhc, ibits,
+ cos_incompat);
+ }
- /* we lock the target dir if it is local */
- rc = mdt_reint_object_lock(info, dir, lh, MDS_INODELOCK_UPDATE,
- cos_incompat);
- if (rc != 0)
- return rc;
+ if (!rc)
+ mdt_object_unlock(info, child, lhr, rc);
- /* get and save correct version after locking */
- mdt_version_get_save(info, dir, idx);
- return 0;
+ return rc;
}
/*
* 2 - srcdir child; 3 - tgtdir child.
* Update on disk version of srcdir child.
*/
-/**
- * For DNE phase I, only these renames are allowed
- * mv src_p/src_c tgt_p/tgt_c
- * 1. src_p/src_c/tgt_p/tgt_c are in the same MDT.
- * 2. src_p and tgt_p are same directory, and tgt_c does not
- * exists. In this case, all of modification will happen
- * in the MDT where ithesource parent is, only one remote
- * update is needed, i.e. set c_time/m_time on the child.
- * And tgt_c will be still in the same MDT as the original
- * src_c.
- */
-static int mdt_reint_rename_internal(struct mdt_thread_info *info,
- struct mdt_lock_handle *lhc)
+static int mdt_reint_rename(struct mdt_thread_info *info,
+ struct mdt_lock_handle *unused)
{
+ struct mdt_device *mdt = info->mti_mdt;
struct mdt_reint_record *rr = &info->mti_rr;
struct md_attr *ma = &info->mti_attr;
struct ptlrpc_request *req = mdt_info_req(info);
struct mdt_object *mtgtdir = NULL;
struct mdt_object *mold;
struct mdt_object *mnew = NULL;
+ struct lustre_handle rename_lh = { 0 };
struct mdt_lock_handle *lh_srcdirp;
struct mdt_lock_handle *lh_tgtdirp;
struct mdt_lock_handle *lh_oldp = NULL;
+ struct mdt_lock_handle *lh_rmt = NULL;
struct mdt_lock_handle *lh_newp = NULL;
struct lu_fid *old_fid = &info->mti_tmp_fid1;
struct lu_fid *new_fid = &info->mti_tmp_fid2;
__u64 lock_ibits;
- bool reverse = false;
+ bool reverse = false, discard = false;
bool cos_incompat;
+ ktime_t kstart = ktime_get();
int rc;
- ENTRY;
+ ENTRY;
DEBUG_REQ(D_INODE, req, "rename "DFID"/"DNAME" to "DFID"/"DNAME,
PFID(rr->rr_fid1), PNAME(&rr->rr_name),
PFID(rr->rr_fid2), PNAME(&rr->rr_tgt_name));
+ if (info->mti_dlm_req)
+ ldlm_request_cancel(req, info->mti_dlm_req, 0, LATF_SKIP);
+
+ if (!fid_is_md_operative(rr->rr_fid1) ||
+ !fid_is_md_operative(rr->rr_fid2))
+ RETURN(-EPERM);
+
/* find both parents. */
- msrcdir = mdt_object_find_check(info, rr->rr_fid1, 0);
+ msrcdir = mdt_parent_find_check(info, rr->rr_fid1, 0);
if (IS_ERR(msrcdir))
RETURN(PTR_ERR(msrcdir));
mtgtdir = msrcdir;
mdt_object_get(info->mti_env, mtgtdir);
} else {
- /* Check if the @msrcdir is not a child of the @mtgtdir,
- * otherwise a reverse locking must take place. */
- rc = mdt_is_subdir(info, msrcdir, rr->rr_fid2);
- if (rc == -EINVAL)
- reverse = true;
- else if (rc)
- GOTO(out_put_srcdir, rc);
-
- mtgtdir = mdt_object_find_check(info, rr->rr_fid2, 1);
+ mtgtdir = mdt_parent_find_check(info, rr->rr_fid2, 1);
if (IS_ERR(mtgtdir))
GOTO(out_put_srcdir, rc = PTR_ERR(mtgtdir));
}
+ /*
+ * Note: do not enqueue rename lock for replay request, because
+ * if other MDT holds rename lock, but being blocked to wait for
+ * this MDT to finish its recovery, and the failover MDT can not
+ * get rename lock, which will cause deadlock.
+ */
+ if (!req_is_replay(req)) {
+ /*
+ * Normally rename RPC is handled on the MDT with the target
+ * directory (if target exists, it's on the MDT with the
+ * target), if the source directory is remote, it's a hint that
+ * source is remote too (this may not be true, but it won't
+ * cause any issue), return -EXDEV early to avoid taking
+ * rename_lock.
+ */
+ if (!mdt->mdt_enable_remote_rename &&
+ mdt_object_remote(msrcdir))
+ GOTO(out_put_tgtdir, rc = -EXDEV);
+
+ /* This might be further relaxed in the future for regular file
+ * renames in different source and target parents. Start with
+ * only same-directory renames for simplicity and because this
+ * is by far the most the common use case.
+ */
+ if (msrcdir != mtgtdir) {
+ rc = mdt_rename_lock(info, &rename_lh);
+ if (rc != 0) {
+ CERROR("%s: cannot lock for rename: rc = %d\n",
+ mdt_obd_name(mdt), rc);
+ GOTO(out_put_tgtdir, rc);
+ }
+ } else {
+ CDEBUG(D_INFO, "%s: samedir rename "DFID"/"DNAME"\n",
+ mdt_obd_name(mdt), PFID(rr->rr_fid1),
+ PNAME(&rr->rr_name));
+ }
+ }
+
+ rc = mdt_rename_determine_lock_order(info, msrcdir, mtgtdir);
+ if (rc < 0)
+ GOTO(out_unlock_rename, rc);
+
+ reverse = rc;
+
/* source needs to be looked up after locking source parent, otherwise
* this rename may race with unlink source, and cause rename hang, see
* sanityn.sh 55b, so check parents first, if later we found source is
- * remote, relock parents. */
+ * remote, relock parents.
+ */
cos_incompat = (mdt_object_remote(msrcdir) ||
mdt_object_remote(mtgtdir));
lh_srcdirp = &info->mti_lh[MDT_LH_PARENT];
lh_tgtdirp = &info->mti_lh[MDT_LH_CHILD];
+ OBD_RACE(OBD_FAIL_MDS_REINT_OPEN);
+ OBD_RACE(OBD_FAIL_MDS_REINT_OPEN2);
relock:
mdt_lock_pdo_init(lh_srcdirp, LCK_PW, &rr->rr_name);
mdt_lock_pdo_init(lh_tgtdirp, LCK_PW, &rr->rr_tgt_name);
rc = mdt_object_lock_save(info, mtgtdir, lh_tgtdirp, 1,
cos_incompat);
if (rc)
- GOTO(out_put_tgtdir, rc);
+ GOTO(out_unlock_rename, rc);
OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_RENAME, 5);
cos_incompat);
if (rc != 0) {
mdt_object_unlock(info, mtgtdir, lh_tgtdirp, rc);
- GOTO(out_put_tgtdir, rc);
+ GOTO(out_unlock_rename, rc);
}
} else {
rc = mdt_object_lock_save(info, msrcdir, lh_srcdirp, 0,
cos_incompat);
if (rc)
- GOTO(out_put_tgtdir, rc);
+ GOTO(out_unlock_rename, rc);
OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_RENAME, 5);
if (mtgtdir != msrcdir) {
rc = mdt_object_lock_save(info, mtgtdir, lh_tgtdirp, 1,
cos_incompat);
- } else if (lh_srcdirp->mlh_pdo_hash !=
+ } else if (!mdt_object_remote(mtgtdir) &&
+ lh_srcdirp->mlh_pdo_hash !=
lh_tgtdirp->mlh_pdo_hash) {
rc = mdt_pdir_hash_lock(info, lh_tgtdirp, mtgtdir,
MDS_INODELOCK_UPDATE,
}
if (rc != 0) {
mdt_object_unlock(info, msrcdir, lh_srcdirp, rc);
- GOTO(out_put_tgtdir, rc);
+ GOTO(out_unlock_rename, rc);
}
}
if (IS_ERR(mold))
GOTO(out_unlock_parents, rc = PTR_ERR(mold));
+ if (!mdt_object_exists(mold)) {
+ LU_OBJECT_DEBUG(D_INODE, info->mti_env,
+ &mold->mot_obj,
+ "object does not exist");
+ GOTO(out_put_old, rc = -ENOENT);
+ }
+
+ if (mdt_object_remote(mold) && !mdt->mdt_enable_remote_rename)
+ GOTO(out_put_old, rc = -EXDEV);
+
/* Check if @mtgtdir is subdir of @mold, before locking child
- * to avoid reverse locking. */
+ * to avoid reverse locking.
+ */
if (mtgtdir != msrcdir) {
- rc = mdt_is_subdir(info, mtgtdir, old_fid);
- if (rc)
+ rc = mdo_is_subdir(info->mti_env, mdt_object_child(mtgtdir),
+ old_fid);
+ if (rc) {
+ if (rc == 1)
+ rc = -EINVAL;
GOTO(out_put_old, rc);
+ }
}
tgt_vbr_obj_set(info->mti_env, mdt_obj2dt(mold));
/* find mnew object:
* mnew target object may not exist now
- * lookup with version checking */
+ * lookup with version checking
+ */
fid_zero(new_fid);
rc = mdt_lookup_version_check(info, mtgtdir, &rr->rr_tgt_name, new_fid,
3);
if (IS_ERR(mnew))
GOTO(out_put_old, rc = PTR_ERR(mnew));
+ if (!mdt_object_exists(mnew)) {
+ LU_OBJECT_DEBUG(D_INODE, info->mti_env,
+ &mnew->mot_obj,
+ "object does not exist");
+ GOTO(out_put_new, rc = -ENOENT);
+ }
+
if (mdt_object_remote(mnew)) {
struct mdt_body *repbody;
/* Before locking the target dir, check we do not replace
* a dir with a non-dir, otherwise it may deadlock with
* link op which tries to create a link in this dir
- * back to this non-dir. */
+ * back to this non-dir.
+ */
if (S_ISDIR(lu_object_attr(&mnew->mot_obj)) &&
!S_ISDIR(lu_object_attr(&mold->mot_obj)))
GOTO(out_put_new, rc = -EISDIR);
lh_oldp = &info->mti_lh[MDT_LH_OLD];
+ lh_rmt = &info->mti_lh[MDT_LH_RMT];
mdt_lock_reg_init(lh_oldp, LCK_EX);
+ mdt_lock_reg_init(lh_rmt, LCK_EX);
lock_ibits = MDS_INODELOCK_LOOKUP | MDS_INODELOCK_XATTR;
- if (mdt_object_remote(msrcdir)) {
- /* Enqueue lookup lock from the parent MDT */
- rc = mdt_remote_object_lock(info, msrcdir,
- mdt_object_fid(mold),
- &lh_oldp->mlh_rreg_lh,
- lh_oldp->mlh_rreg_mode,
- MDS_INODELOCK_LOOKUP,
- false);
- if (rc != ELDLM_OK)
- GOTO(out_put_new, rc);
-
- lock_ibits &= ~MDS_INODELOCK_LOOKUP;
- }
-
- rc = mdt_reint_object_lock(info, mold, lh_oldp, lock_ibits,
- cos_incompat);
- if (rc != 0)
- GOTO(out_unlock_old, rc);
+ rc = mdt_rename_source_lock(info, msrcdir, mold, lh_oldp,
+ lh_rmt, lock_ibits, cos_incompat);
+ if (rc < 0)
+ GOTO(out_put_new, rc);
/* Check if @msrcdir is subdir of @mnew, before locking child
- * to avoid reverse locking. */
+ * to avoid reverse locking.
+ */
if (mtgtdir != msrcdir) {
- rc = mdt_is_subdir(info, msrcdir, new_fid);
- if (rc)
+ rc = mdo_is_subdir(info->mti_env,
+ mdt_object_child(msrcdir), new_fid);
+ if (rc) {
+ if (rc == 1)
+ rc = -EINVAL;
GOTO(out_unlock_old, rc);
+ }
}
/* We used to acquire MDS_INODELOCK_FULL here but we
* can't do this now because a running HSM restore on
* the rename onto victim will hold the layout
- * lock. See LU-4002. */
+ * lock. See LU-4002.
+ */
lh_newp = &info->mti_lh[MDT_LH_NEW];
mdt_lock_reg_init(lh_newp, LCK_EX);
- rc = mdt_reint_object_lock(info, mnew, lh_newp,
- MDS_INODELOCK_LOOKUP |
- MDS_INODELOCK_UPDATE,
+ lock_ibits = MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE;
+ if (mdt_object_remote(mtgtdir)) {
+ rc = mdt_remote_object_lock(info, mtgtdir,
+ mdt_object_fid(mnew),
+ &lh_newp->mlh_rreg_lh,
+ lh_newp->mlh_rreg_mode,
+ MDS_INODELOCK_LOOKUP,
+ false);
+ if (rc != ELDLM_OK)
+ GOTO(out_unlock_old, rc);
+
+ lock_ibits &= ~MDS_INODELOCK_LOOKUP;
+ }
+ rc = mdt_reint_object_lock(info, mnew, lh_newp, lock_ibits,
cos_incompat);
if (rc != 0)
- GOTO(out_unlock_old, rc);
+ GOTO(out_unlock_new, rc);
/* get and save version after locking */
mdt_version_get_save(info, mnew, 3);
- } else if (rc != -EREMOTE && rc != -ENOENT) {
+ } else if (rc != -ENOENT) {
GOTO(out_put_old, rc);
} else {
lh_oldp = &info->mti_lh[MDT_LH_OLD];
+ lh_rmt = &info->mti_lh[MDT_LH_RMT];
mdt_lock_reg_init(lh_oldp, LCK_EX);
+ mdt_lock_reg_init(lh_rmt, LCK_EX);
lock_ibits = MDS_INODELOCK_LOOKUP | MDS_INODELOCK_XATTR;
- if (mdt_object_remote(msrcdir)) {
- /* Enqueue lookup lock from the parent MDT */
- rc = mdt_remote_object_lock(info, msrcdir,
- mdt_object_fid(mold),
- &lh_oldp->mlh_rreg_lh,
- lh_oldp->mlh_rreg_mode,
- MDS_INODELOCK_LOOKUP,
- false);
- if (rc != ELDLM_OK)
- GOTO(out_put_old, rc);
-
- lock_ibits &= ~MDS_INODELOCK_LOOKUP;
- }
-
- rc = mdt_reint_object_lock(info, mold, lh_oldp, lock_ibits,
- cos_incompat);
+ rc = mdt_rename_source_lock(info, msrcdir, mold, lh_oldp,
+ lh_rmt, lock_ibits, cos_incompat);
if (rc != 0)
- GOTO(out_unlock_old, rc);
+ GOTO(out_put_old, rc);
mdt_enoent_version_save(info, 3);
}
/* handle last link of tgt object */
if (rc == 0) {
- mdt_counter_incr(req, LPROC_MDT_RENAME);
+ mdt_counter_incr(req, LPROC_MDT_RENAME,
+ ktime_us_delta(ktime_get(), kstart));
if (mnew) {
mdt_handle_last_unlink(info, mnew, ma);
- mdt_dom_check_and_discard(info, mnew);
+ discard = mdt_dom_check_for_discard(info, mnew);
}
-
mdt_rename_counter_tally(info, info->mti_mdt, req,
- msrcdir, mtgtdir);
+ msrcdir, mtgtdir,
+ ktime_us_delta(ktime_get(), kstart));
}
EXIT;
+out_unlock_new:
if (mnew != NULL)
mdt_object_unlock(info, mnew, lh_newp, rc);
out_unlock_old:
+ mdt_object_unlock(info, NULL, lh_rmt, rc);
mdt_object_unlock(info, mold, lh_oldp, rc);
out_put_new:
- if (mnew != NULL)
+ if (mnew && !discard)
mdt_object_put(info->mti_env, mnew);
out_put_old:
mdt_object_put(info->mti_env, mold);
out_unlock_parents:
mdt_object_unlock(info, mtgtdir, lh_tgtdirp, rc);
mdt_object_unlock(info, msrcdir, lh_srcdirp, rc);
+out_unlock_rename:
+ if (lustre_handle_is_used(&rename_lh))
+ mdt_rename_unlock(&rename_lh);
out_put_tgtdir:
mdt_object_put(info->mti_env, mtgtdir);
out_put_srcdir:
mdt_object_put(info->mti_env, msrcdir);
- return rc;
-}
-
-static int mdt_reint_rename_or_migrate(struct mdt_thread_info *info,
- struct mdt_lock_handle *lhc, bool rename)
-{
- struct mdt_reint_record *rr = &info->mti_rr;
- struct ptlrpc_request *req = mdt_info_req(info);
- struct lustre_handle rename_lh = { 0 };
- int rc;
- ENTRY;
-
- if (info->mti_dlm_req)
- ldlm_request_cancel(req, info->mti_dlm_req, 0, LATF_SKIP);
-
- if (!fid_is_md_operative(rr->rr_fid1) ||
- !fid_is_md_operative(rr->rr_fid2))
- RETURN(-EPERM);
- /* Note: do not enqueue rename lock for replay request, because
- * if other MDT holds rename lock, but being blocked to wait for
- * this MDT to finish its recovery, and the failover MDT can not
- * get rename lock, which will cause deadlock. */
- if (!req_is_replay(req)) {
- rc = mdt_rename_lock(info, &rename_lh);
- if (rc != 0) {
- CERROR("%s: can't lock FS for rename: rc = %d\n",
- mdt_obd_name(info->mti_mdt), rc);
- RETURN(rc);
- }
+ /* The DoM discard can be done right in the place above where it is
+ * assigned, meanwhile it is done here after rename unlock due to
+ * compatibility with old clients, for them the discard blocks
+ * the main thread until completion. Check LU-11359 for details.
+ */
+ if (discard) {
+ mdt_dom_discard_data(info, mnew);
+ mdt_object_put(info->mti_env, mnew);
}
-
- if (rename)
- rc = mdt_reint_rename_internal(info, lhc);
- else
- rc = mdt_reint_migrate_internal(info, lhc);
-
- if (lustre_handle_is_used(&rename_lh))
- mdt_rename_unlock(&rename_lh);
-
- RETURN(rc);
-}
-
-static int mdt_reint_rename(struct mdt_thread_info *info,
- struct mdt_lock_handle *lhc)
-{
- return mdt_reint_rename_or_migrate(info, lhc, true);
-}
-
-static int mdt_reint_migrate(struct mdt_thread_info *info,
- struct mdt_lock_handle *lhc)
-{
- return mdt_reint_rename_or_migrate(info, lhc, false);
+ OBD_RACE(OBD_FAIL_MDS_LINK_RENAME_RACE);
+ return rc;
}
static int mdt_reint_resync(struct mdt_thread_info *info,
struct mdt_lock_handle *lhc)
{
struct mdt_reint_record *rr = &info->mti_rr;
- struct ptlrpc_request *req = mdt_info_req(info);
- struct md_attr *ma = &info->mti_attr;
- struct mdt_object *mo;
- struct ldlm_lock *lease;
- struct mdt_body *repbody;
- struct md_layout_change layout = { 0 };
- bool lease_broken;
- int rc, rc2;
- ENTRY;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct md_attr *ma = &info->mti_attr;
+ struct mdt_object *mo;
+ struct ldlm_lock *lease;
+ struct mdt_body *repbody;
+ struct md_layout_change layout = { .mlc_mirror_id = rr->rr_mirror_id };
+ bool lease_broken;
+ int rc, rc2;
- DEBUG_REQ(D_INODE, req, DFID": FLR file resync\n", PFID(rr->rr_fid1));
+ ENTRY;
+ DEBUG_REQ(D_INODE, req, DFID", FLR file resync", PFID(rr->rr_fid1));
if (info->mti_dlm_req)
ldlm_request_cancel(req, info->mti_dlm_req, 0, LATF_SKIP);
if (mdt_object_remote(mo))
GOTO(out_obj, rc = -EREMOTE);
- lease = ldlm_handle2lock(rr->rr_handle);
+ lease = ldlm_handle2lock(rr->rr_lease_handle);
if (lease == NULL)
GOTO(out_obj, rc = -ESTALE);
/* It's really necessary to grab open_sem and check if the lease lock
* has been lost. There would exist a concurrent writer coming in and
* generating some dirty data in memory cache, the writeback would fail
- * after the layout version is increased by MDS_REINT_RESYNC RPC. */
+ * after the layout version is increased by MDS_REINT_RESYNC RPC.
+ */
if (!down_write_trylock(&mo->mot_open_sem))
GOTO(out_put_lease, rc = -EBUSY);
/* the file has yet opened by anyone else after we took the lease. */
layout.mlc_opc = MD_LAYOUT_RESYNC;
- rc = mdt_layout_change(info, mo, &layout);
+ lhc = &info->mti_lh[MDT_LH_LOCAL];
+ rc = mdt_layout_change(info, mo, lhc, &layout);
if (rc)
GOTO(out_unlock, rc);
+ mdt_object_unlock(info, mo, lhc, 0);
+
ma->ma_need = MA_INODE;
ma->ma_valid = 0;
rc = mdt_attr_get_complex(info, mo, ma);
{
const struct mdt_reinter *mr;
int rc;
- ENTRY;
+ ENTRY;
if (!(info->mti_rr.rr_opcode < ARRAY_SIZE(mdt_reinters)))
RETURN(-EPROTO);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff