*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_LMV
const struct lu_fid *parent_fid,
struct ptlrpc_request **reqp,
ldlm_blocking_callback cb_blocking,
- __u64 extra_lock_flags)
+ __u64 extra_lock_flags,
+ const char *secctx_name, __u32 secctx_name_size)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
LASSERT((body->mbo_valid & OBD_MD_MDS));
/*
- * Unfortunately, we have to lie to MDC/MDS to retrieve
- * attributes llite needs and provideproper locking.
- */
- if (it->it_op & IT_LOOKUP)
- it->it_op = IT_GETATTR;
-
- /*
* We got LOOKUP lock, but we really need attrs.
*/
pmode = it->it_lock_mode;
LASSERT(fid_is_sane(&body->mbo_fid1));
- tgt = lmv_find_target(lmv, &body->mbo_fid1);
+ tgt = lmv_fid2tgt(lmv, &body->mbo_fid1);
if (IS_ERR(tgt))
GOTO(out, rc = PTR_ERR(tgt));
op_data->op_bias = MDS_CROSS_REF;
CDEBUG(D_INODE, "REMOTE_INTENT with fid="DFID" -> mds #%u\n",
- PFID(&body->mbo_fid1), tgt->ltd_idx);
+ PFID(&body->mbo_fid1), tgt->ltd_index);
+
+ /* ask for security context upon intent */
+ if (it->it_op & (IT_LOOKUP | IT_GETATTR | IT_OPEN) &&
+ secctx_name_size != 0 && secctx_name != NULL) {
+ op_data->op_file_secctx_name = secctx_name;
+ op_data->op_file_secctx_name_size = secctx_name_size;
+ CDEBUG(D_SEC, "'%.*s' is security xattr to fetch for "
+ DFID"\n",
+ secctx_name_size, secctx_name, PFID(&body->mbo_fid1));
+ }
rc = md_intent_lock(tgt->ltd_exp, op_data, it, &req, cb_blocking,
extra_lock_flags);
ldlm_blocking_callback cb_blocking,
int extra_lock_flags)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct ptlrpc_request *req = NULL;
- struct mdt_body *body;
- struct md_op_data *op_data;
- int i;
- int rc = 0;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct ptlrpc_request *req = NULL;
+ struct mdt_body *body;
+ struct md_op_data *op_data;
+ int i;
+ int valid_stripe_count = 0;
+ int rc = 0;
ENTRY;
fid = lsm->lsm_md_oinfo[i].lmo_fid;
inode = lsm->lsm_md_oinfo[i].lmo_root;
+ if (!inode)
+ continue;
+
/*
* Prepare op_data for revalidating. Note that @fid2 shluld be
* defined otherwise it will go to server and take new lock
memset(op_data, 0, sizeof(*op_data));
op_data->op_fid1 = fid;
op_data->op_fid2 = fid;
+ /* shard revalidate only needs to fetch attributes and UPDATE
+ * lock, which is similar to the bottom half of remote object
+ * getattr, set this flag so that MDT skips checking whether
+ * it's remote object.
+ */
+ op_data->op_bias = MDS_CROSS_REF;
- tgt = lmv_get_target(lmv, lsm->lsm_md_oinfo[i].lmo_mds, NULL);
- if (IS_ERR(tgt))
- GOTO(cleanup, rc = PTR_ERR(tgt));
+ tgt = lmv_tgt(lmv, lsm->lsm_md_oinfo[i].lmo_mds);
+ if (!tgt)
+ GOTO(cleanup, rc = -ENODEV);
CDEBUG(D_INODE, "Revalidate slave "DFID" -> mds #%u\n",
- PFID(&fid), tgt->ltd_idx);
+ PFID(&fid), tgt->ltd_index);
if (req != NULL) {
ptlrpc_req_finished(req);
rc = md_intent_lock(tgt->ltd_exp, op_data, &it, &req,
cb_blocking, extra_lock_flags);
+ if (rc == -ENOENT) {
+ /* skip stripe is not exists */
+ rc = 0;
+ continue;
+ }
+
if (rc < 0)
GOTO(cleanup, rc);
ldlm_lock_decref(lockh, it.it_lock_mode);
it.it_lock_mode = 0;
}
+
+ valid_stripe_count++;
}
cleanup:
if (req != NULL)
ptlrpc_req_finished(req);
+ /* if all stripes are invalid, return -ENOENT to notify user */
+ if (!rc && !valid_stripe_count)
+ rc = -ENOENT;
+
OBD_FREE_PTR(op_data);
RETURN(rc);
}
-
/*
* IT_OPEN is intended to open (and create, possible) an object. Parent (pid)
* may be split dir.
ENTRY;
+ /* do not allow file creation in foreign dir */
+ if ((it->it_op & IT_CREAT) && lmv_dir_foreign(op_data->op_mea1))
+ RETURN(-ENODATA);
+
if ((it->it_op & IT_CREAT) && !(flags & MDS_OPEN_BY_FID)) {
/* don't allow create under dir with bad hash */
- if (lmv_is_dir_bad_hash(op_data->op_mea1))
+ if (lmv_dir_bad_hash(op_data->op_mea1))
RETURN(-EBADF);
- if (lmv_is_dir_migrating(op_data->op_mea1)) {
+ if (lmv_dir_layout_changing(op_data->op_mea1)) {
if (flags & O_EXCL) {
/*
* open(O_CREAT | O_EXCL) needs to check
* existing name, which should be done on both
- * old and new layout, to avoid creating new
- * file under old layout, check old layout on
+ * old and new layout, check old layout on
* client side.
*/
- tgt = lmv_locate_tgt(lmv, op_data,
- &op_data->op_fid1);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
-
- rc = md_getattr_name(tgt->ltd_exp, op_data,
- reqp);
- if (!rc) {
- ptlrpc_req_finished(*reqp);
- *reqp = NULL;
- RETURN(-EEXIST);
- }
-
+ rc = lmv_old_layout_lookup(lmv, op_data);
if (rc != -ENOENT)
RETURN(rc);
- op_data->op_post_migrate = true;
+ op_data->op_new_layout = true;
} else {
/*
* open(O_CREAT) will be sent to MDT in old
/* for striped directory, we can't know parent stripe fid
* without name, but we can set it to child fid, and MDT
* will obtain it from linkea in open in such case. */
- if (op_data->op_mea1 != NULL)
+ if (lmv_dir_striped(op_data->op_mea1))
op_data->op_fid1 = op_data->op_fid2;
- tgt = lmv_find_target(lmv, &op_data->op_fid2);
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid2);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
- op_data->op_mds = tgt->ltd_idx;
+ op_data->op_mds = tgt->ltd_index;
} else {
LASSERT(fid_is_sane(&op_data->op_fid1));
LASSERT(fid_is_zero(&op_data->op_fid2));
LASSERT(op_data->op_name != NULL);
- tgt = lmv_locate_tgt(lmv, op_data, &op_data->op_fid1);
+ tgt = lmv_locate_tgt(lmv, op_data);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
}
CDEBUG(D_INODE, "OPEN_INTENT with fid1="DFID", fid2="DFID","
" name='%s' -> mds #%u\n", PFID(&op_data->op_fid1),
- PFID(&op_data->op_fid2), op_data->op_name, tgt->ltd_idx);
+ PFID(&op_data->op_fid2), op_data->op_name, tgt->ltd_index);
rc = md_intent_lock(tgt->ltd_exp, op_data, it, reqp, cb_blocking,
extra_lock_flags);
/* Not cross-ref case, just get out of here. */
if (unlikely((body->mbo_valid & OBD_MD_MDS))) {
rc = lmv_intent_remote(exp, it, &op_data->op_fid1, reqp,
- cb_blocking, extra_lock_flags);
+ cb_blocking, extra_lock_flags,
+ op_data->op_file_secctx_name,
+ op_data->op_file_secctx_name_size);
if (rc != 0)
RETURN(rc);
int rc;
ENTRY;
+ /* foreign dir is not striped */
+ if (lmv_dir_foreign(op_data->op_mea1)) {
+ /* only allow getattr/lookup for itself */
+ if (op_data->op_name != NULL)
+ RETURN(-ENODATA);
+ RETURN(0);
+ }
+
retry:
- tgt = lmv_locate_tgt(lmv, op_data, &op_data->op_fid1);
+ if (op_data->op_flags & MF_GETATTR_BY_FID) {
+ /* getattr by FID, replace fid1 with stripe FID,
+ * NB, don't replace if name is "/", because it may be a subtree
+ * mount, and if it's a striped directory, fid1 will be replaced
+ * to stripe FID by hash, while fid2 is master object FID, which
+ * will be treated as a remote object if the two FIDs are
+ * located on different MDTs, and LOOKUP lock can't be fetched.
+ */
+ LASSERT(op_data->op_name);
+ if (op_data->op_namelen != 1 ||
+ strncmp(op_data->op_name, "/", 1) != 0) {
+ tgt = lmv_locate_tgt(lmv, op_data);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+ }
+
+ /* name is used to locate stripe target, clear it here
+ * to avoid packing name in request, so that MDS knows
+ * it's getattr by FID.
+ */
+ op_data->op_name = NULL;
+ op_data->op_namelen = 0;
+
+ /* getattr request is sent to MDT where fid2 inode is */
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid2);
+ } else if (op_data->op_name) {
+ /* getattr by name */
+ tgt = lmv_locate_tgt(lmv, op_data);
+ if (!fid_is_sane(&op_data->op_fid2))
+ fid_zero(&op_data->op_fid2);
+ } else {
+ /* old way to getattr by FID, parent FID not packed */
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid1);
+ }
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
- if (!fid_is_sane(&op_data->op_fid2))
- fid_zero(&op_data->op_fid2);
-
CDEBUG(D_INODE, "LOOKUP_INTENT with fid1="DFID", fid2="DFID
", name='%s' -> mds #%u\n",
PFID(&op_data->op_fid1), PFID(&op_data->op_fid2),
op_data->op_name ? op_data->op_name : "<NULL>",
- tgt->ltd_idx);
+ tgt->ltd_index);
op_data->op_bias &= ~MDS_CROSS_REF;
if (*reqp == NULL) {
/* If RPC happens, lsm information will be revalidated
* during update_inode process (see ll_update_lsm_md) */
- if (op_data->op_mea2 != NULL) {
+ if (lmv_dir_striped(op_data->op_mea2)) {
rc = lmv_revalidate_slaves(exp, op_data->op_mea2,
cb_blocking,
extra_lock_flags);
/* Not cross-ref case, just get out of here. */
if (unlikely((body->mbo_valid & OBD_MD_MDS))) {
rc = lmv_intent_remote(exp, it, NULL, reqp, cb_blocking,
- extra_lock_flags);
+ extra_lock_flags,
+ op_data->op_file_secctx_name,
+ op_data->op_file_secctx_name_size);
if (rc != 0)
RETURN(rc);
body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff