X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Flmv%2Flmv_intent.c;h=08a5a609e3fdbdc8248407285703c763d2102ee3;hb=5a6aa0e6d1583cc0d4c82ae8c95fb7b9856d6284;hp=22a0d21277517c9414ec72919be0ceef1e7b4fd9;hpb=003df3c38fe74a092f75569793edd6ec5a387d5c;p=fs%2Flustre-release.git diff --git a/lustre/lmv/lmv_intent.c b/lustre/lmv/lmv_intent.c index 22a0d21..08a5a60 100644 --- a/lustre/lmv/lmv_intent.c +++ b/lustre/lmv/lmv_intent.c @@ -15,11 +15,7 @@ * * You should have received a copy of the GNU General Public License * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. + * http://www.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ @@ -27,7 +23,7 @@ * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2011, 2013, Intel Corporation. + * Copyright (c) 2011, 2016, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -35,7 +31,6 @@ */ #define DEBUG_SUBSYSTEM S_LMV -#ifdef __KERNEL__ #include #include #include @@ -44,10 +39,7 @@ #include #include #include -#include -#else -#include -#endif +#include #include #include @@ -92,11 +84,11 @@ static int lmv_intent_remote(struct obd_export *exp, struct lookup_intent *it, /* * We got LOOKUP lock, but we really need attrs. */ - pmode = it->d.lustre.it_lock_mode; + pmode = it->it_lock_mode; if (pmode) { - plock.cookie = it->d.lustre.it_lock_handle; - it->d.lustre.it_lock_mode = 0; - it->d.lustre.it_data = NULL; + plock.cookie = it->it_lock_handle; + it->it_lock_mode = 0; + it->it_request = NULL; } LASSERT(fid_is_sane(&body->mbo_fid1)); @@ -117,13 +109,10 @@ static int lmv_intent_remote(struct obd_export *exp, struct lookup_intent *it, * see mdt_cross_open */ LASSERT(it->it_op & IT_OPEN); op_data->op_fid2 = *parent_fid; - /* Add object FID to op_fid3, in case it needs to check stale - * (M_CHECK_STALE), see mdc_finish_intent_lock */ - op_data->op_fid3 = body->mbo_fid1; } op_data->op_bias = MDS_CROSS_REF; - CDEBUG(D_INODE, "REMOTE_INTENT with fid="DFID" -> mds #%d\n", + CDEBUG(D_INODE, "REMOTE_INTENT with fid="DFID" -> mds #%u\n", PFID(&body->mbo_fid1), tgt->ltd_idx); rc = md_intent_lock(tgt->ltd_exp, op_data, it, &req, cb_blocking, @@ -136,15 +125,15 @@ static int lmv_intent_remote(struct obd_export *exp, struct lookup_intent *it, * maintain dcache consistency. Thus drop UPDATE|PERM lock here * and put LOOKUP in request. */ - if (it->d.lustre.it_lock_mode != 0) { - it->d.lustre.it_remote_lock_handle = - it->d.lustre.it_lock_handle; - it->d.lustre.it_remote_lock_mode = it->d.lustre.it_lock_mode; + if (it->it_lock_mode != 0) { + it->it_remote_lock_handle = + it->it_lock_handle; + it->it_remote_lock_mode = it->it_lock_mode; } if (pmode) { - it->d.lustre.it_lock_handle = plock.cookie; - it->d.lustre.it_lock_mode = pmode; + it->it_lock_handle = plock.cookie; + it->it_lock_mode = pmode; } EXIT; @@ -159,21 +148,16 @@ out: return rc; } -#ifdef __KERNEL__ -int lmv_revalidate_slaves(struct obd_export *exp, struct mdt_body *mbody, - struct lmv_stripe_md *lsm, +int lmv_revalidate_slaves(struct obd_export *exp, + const struct lmv_stripe_md *lsm, 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; - unsigned long size = 0; - unsigned long nlink = 0; - obd_time atime = 0; - obd_time ctime = 0; - obd_time mtime = 0; int i; int rc = 0; @@ -194,7 +178,6 @@ int lmv_revalidate_slaves(struct obd_export *exp, struct mdt_body *mbody, for (i = 0; i < lsm->lsm_md_stripe_count; i++) { struct lu_fid fid; struct lookup_intent it = { .it_op = IT_GETATTR }; - struct ptlrpc_request *req = NULL; struct lustre_handle *lockh = NULL; struct lmv_tgt_desc *tgt = NULL; struct inode *inode; @@ -215,15 +198,20 @@ int lmv_revalidate_slaves(struct obd_export *exp, struct mdt_body *mbody, if (IS_ERR(tgt)) GOTO(cleanup, rc = PTR_ERR(tgt)); - CDEBUG(D_INODE, "Revalidate slave "DFID" -> mds #%d\n", + CDEBUG(D_INODE, "Revalidate slave "DFID" -> mds #%u\n", PFID(&fid), tgt->ltd_idx); + if (req != NULL) { + ptlrpc_req_finished(req); + req = NULL; + } + rc = md_intent_lock(tgt->ltd_exp, op_data, &it, &req, cb_blocking, extra_lock_flags); if (rc < 0) GOTO(cleanup, rc); - lockh = (struct lustre_handle *)&it.d.lustre.it_lock_handle; + lockh = (struct lustre_handle *)&it.it_lock_handle; if (rc > 0 && req == NULL) { /* slave inode is still valid */ CDEBUG(D_INODE, "slave "DFID" is still valid.\n", @@ -233,101 +221,48 @@ int lmv_revalidate_slaves(struct obd_export *exp, struct mdt_body *mbody, /* refresh slave from server */ body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); - LASSERT(body != NULL); - if (unlikely(body->mbo_nlink < 2)) { - CERROR("%s: nlink %d < 2 corrupt stripe %d "DFID - ":" DFID"\n", - obd->obd_name, body->mbo_nlink, i, - PFID(&lsm->lsm_md_oinfo[i].lmo_fid), - PFID(&lsm->lsm_md_oinfo[0].lmo_fid)); - - if (req != NULL) - ptlrpc_req_finished(req); - - if (it.d.lustre.it_lock_mode && lockh) { + if (body == NULL) { + if (it.it_lock_mode && lockh) { ldlm_lock_decref(lockh, - it.d.lustre.it_lock_mode); - it.d.lustre.it_lock_mode = 0; + it.it_lock_mode); + it.it_lock_mode = 0; } - - GOTO(cleanup, rc = -EIO); + GOTO(cleanup, rc = -ENOENT); } - i_size_write(inode, body->mbo_size); + inode->i_blocks = body->mbo_blocks; set_nlink(inode, body->mbo_nlink); LTIME_S(inode->i_atime) = body->mbo_atime; LTIME_S(inode->i_ctime) = body->mbo_ctime; LTIME_S(inode->i_mtime) = body->mbo_mtime; - - if (req != NULL) - ptlrpc_req_finished(req); } - md_set_lock_data(tgt->ltd_exp, &lockh->cookie, inode, NULL); - - size += i_size_read(inode); - - if (i != 0) - nlink += inode->i_nlink - 2; - else - nlink += inode->i_nlink; - - atime = LTIME_S(inode->i_atime) > atime ? - LTIME_S(inode->i_atime) : atime; - ctime = LTIME_S(inode->i_ctime) > ctime ? - LTIME_S(inode->i_ctime) : ctime; - mtime = LTIME_S(inode->i_mtime) > mtime ? - LTIME_S(inode->i_mtime) : mtime; - - if (it.d.lustre.it_lock_mode != 0 && lockh != NULL) { - ldlm_lock_decref(lockh, it.d.lustre.it_lock_mode); - it.d.lustre.it_lock_mode = 0; + md_set_lock_data(tgt->ltd_exp, lockh, inode, NULL); + if (it.it_lock_mode != 0 && lockh != NULL) { + ldlm_lock_decref(lockh, it.it_lock_mode); + it.it_lock_mode = 0; } - - CDEBUG(D_INODE, "i %d "DFID" size %llu, nlink %u, atime " - "%lu, mtime %lu, ctime %lu.\n", i, PFID(&fid), - i_size_read(inode), inode->i_nlink, - LTIME_S(inode->i_atime), LTIME_S(inode->i_mtime), - LTIME_S(inode->i_ctime)); } - /* - * update attr of master request. - */ - CDEBUG(D_INODE, "Return refreshed attrs: size = %lu nlink %lu atime " - LPU64 "ctime "LPU64" mtime "LPU64" for " DFID"\n", size, nlink, - atime, ctime, mtime, PFID(&lsm->lsm_md_oinfo[0].lmo_fid)); - - if (mbody != NULL) { - mbody->mbo_atime = atime; - mbody->mbo_ctime = ctime; - mbody->mbo_mtime = mtime; - } cleanup: + if (req != NULL) + ptlrpc_req_finished(req); + OBD_FREE_PTR(op_data); RETURN(rc); } -#else - -int lmv_revalidate_slaves(struct obd_export *exp, struct mdt_body *mbody, - struct lmv_stripe_md *lsm, - ldlm_blocking_callback cb_blocking, - int extra_lock_flags) -{ - return 0; -} - -#endif /* * IT_OPEN is intended to open (and create, possible) an object. Parent (pid) * may be split dir. */ -int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data, - struct lookup_intent *it, struct ptlrpc_request **reqp, - ldlm_blocking_callback cb_blocking, __u64 extra_lock_flags) +static int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data, + struct lookup_intent *it, + struct ptlrpc_request **reqp, + ldlm_blocking_callback cb_blocking, + __u64 extra_lock_flags) { struct obd_device *obd = exp->exp_obd; struct lmv_obd *lmv = &obd->u.lmv; @@ -336,19 +271,14 @@ int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data, int rc; ENTRY; - /* Note: client might open with some random flags(sanity 33b), so we can - * not make sure op_fid2 is being initialized with BY_FID flag */ - if (it->it_flags & MDS_OPEN_BY_FID && fid_is_sane(&op_data->op_fid2)) { - if (op_data->op_mea1 != NULL) { - struct lmv_stripe_md *lsm = op_data->op_mea1; - const struct lmv_oinfo *oinfo; - - oinfo = lsm_name_to_stripe_info(lsm, op_data->op_name, - op_data->op_namelen); - if (IS_ERR(oinfo)) - RETURN(PTR_ERR(oinfo)); - op_data->op_fid1 = oinfo->lmo_fid; - } + if (it->it_flags & MDS_OPEN_BY_FID) { + LASSERT(fid_is_sane(&op_data->op_fid2)); + + /* 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) + op_data->op_fid1 = op_data->op_fid2; tgt = lmv_find_target(lmv, &op_data->op_fid2); if (IS_ERR(tgt)) @@ -356,6 +286,10 @@ int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data, op_data->op_mds = tgt->ltd_idx; } 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_mds(lmv, op_data, &op_data->op_fid1); if (IS_ERR(tgt)) RETURN(PTR_ERR(tgt)); @@ -363,20 +297,18 @@ int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data, /* If it is ready to open the file by FID, do not need * allocate FID at all, otherwise it will confuse MDT */ - if ((it->it_op & IT_CREAT) && - !(it->it_flags & MDS_OPEN_BY_FID)) { + if ((it->it_op & IT_CREAT) && !(it->it_flags & MDS_OPEN_BY_FID)) { /* - * For open with IT_CREATE and for IT_CREATE cases allocate new - * fid and setup FLD for it. + * For lookup(IT_CREATE) cases allocate new fid and setup FLD + * for it. */ - op_data->op_fid3 = op_data->op_fid2; rc = lmv_fid_alloc(NULL, exp, &op_data->op_fid2, op_data); if (rc != 0) RETURN(rc); } CDEBUG(D_INODE, "OPEN_INTENT with fid1="DFID", fid2="DFID"," - " name='%s' -> mds #%d\n", PFID(&op_data->op_fid1), + " name='%s' -> mds #%u\n", PFID(&op_data->op_fid1), PFID(&op_data->op_fid2), op_data->op_name, tgt->ltd_idx); rc = md_intent_lock(tgt->ltd_exp, op_data, it, reqp, cb_blocking, @@ -387,9 +319,9 @@ int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data, * Nothing is found, do not access body->fid1 as it is zero and thus * pointless. */ - if ((it->d.lustre.it_disposition & DISP_LOOKUP_NEG) && - !(it->d.lustre.it_disposition & DISP_OPEN_CREATE) && - !(it->d.lustre.it_disposition & DISP_OPEN_OPEN)) + if ((it->it_disposition & DISP_LOOKUP_NEG) && + !(it->it_disposition & DISP_OPEN_CREATE) && + !(it->it_disposition & DISP_OPEN_OPEN)) RETURN(rc); body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY); @@ -428,15 +360,31 @@ lmv_intent_lookup(struct obd_export *exp, struct md_op_data *op_data, int rc = 0; ENTRY; + /* If it returns ERR_PTR(-EBADFD) then it is an unknown hash type + * it will try all stripes to locate the object */ tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1); - if (IS_ERR(tgt)) + if (IS_ERR(tgt) && (PTR_ERR(tgt) != -EBADFD)) RETURN(PTR_ERR(tgt)); + /* Both migrating dir and unknown hash dir need to try + * all of sub-stripes */ + if (lsm != NULL && !lmv_is_known_hash_type(lsm->lsm_md_hash_type)) { + struct lmv_oinfo *oinfo; + + oinfo = &lsm->lsm_md_oinfo[0]; + + op_data->op_fid1 = oinfo->lmo_fid; + op_data->op_mds = oinfo->lmo_mds; + tgt = lmv_get_target(lmv, oinfo->lmo_mds, NULL); + 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 #%d lsm=%p lsm_magic=%x\n", + ", name='%s' -> mds #%u lsm=%p lsm_magic=%x\n", PFID(&op_data->op_fid1), PFID(&op_data->op_fid2), op_data->op_name ? op_data->op_name : "", tgt->ltd_idx, lsm, lsm == NULL ? -1 : lsm->lsm_md_magic); @@ -452,7 +400,7 @@ lmv_intent_lookup(struct obd_export *exp, struct md_op_data *op_data, /* If RPC happens, lsm information will be revalidated * during update_inode process (see ll_update_lsm_md) */ if (op_data->op_mea2 != NULL) { - rc = lmv_revalidate_slaves(exp, NULL, op_data->op_mea2, + rc = lmv_revalidate_slaves(exp, op_data->op_mea2, cb_blocking, extra_lock_flags); if (rc != 0) @@ -460,26 +408,41 @@ lmv_intent_lookup(struct obd_export *exp, struct md_op_data *op_data, } RETURN(rc); } else if (it_disposition(it, DISP_LOOKUP_NEG) && lsm != NULL && - lsm->lsm_md_hash_type & LMV_HASH_FLAG_MIGRATION) { - /* For migrating directory, if it can not find the child in - * the source directory(master stripe), try the targeting - * directory(stripe 1) */ - tgt = lmv_find_target(lmv, &lsm->lsm_md_oinfo[1].lmo_fid); - if (IS_ERR(tgt)) - RETURN(PTR_ERR(tgt)); + lmv_need_try_all_stripes(lsm)) { + /* For migrating and unknown hash type directory, it will + * try to target the entry on other stripes */ + int stripe_index; - ptlrpc_req_finished(*reqp); - it->d.lustre.it_data = NULL; - *reqp = NULL; + for (stripe_index = 1; + stripe_index < lsm->lsm_md_stripe_count && + it_disposition(it, DISP_LOOKUP_NEG); stripe_index++) { + struct lmv_oinfo *oinfo; - CDEBUG(D_INODE, "For migrating dir, try target dir "DFID"\n", - PFID(&lsm->lsm_md_oinfo[1].lmo_fid)); + /* release the previous request */ + ptlrpc_req_finished(*reqp); + it->it_request = NULL; + *reqp = NULL; - op_data->op_fid1 = lsm->lsm_md_oinfo[1].lmo_fid; - it->d.lustre.it_disposition &= ~DISP_ENQ_COMPLETE; - rc = md_intent_lock(tgt->ltd_exp, op_data, it, reqp, - cb_blocking, extra_lock_flags); + oinfo = &lsm->lsm_md_oinfo[stripe_index]; + tgt = lmv_find_target(lmv, &oinfo->lmo_fid); + if (IS_ERR(tgt)) + RETURN(PTR_ERR(tgt)); + + CDEBUG(D_INODE, "Try other stripes " DFID"\n", + PFID(&oinfo->lmo_fid)); + + op_data->op_fid1 = oinfo->lmo_fid; + it->it_disposition &= ~DISP_ENQ_COMPLETE; + rc = md_intent_lock(tgt->ltd_exp, op_data, it, reqp, + cb_blocking, extra_lock_flags); + if (rc != 0) + RETURN(rc); + } } + + if (!it_has_reply_body(it)) + RETURN(0); + /* * MDS has returned success. Probably name has been resolved in * remote inode. Let's check this. @@ -507,22 +470,18 @@ int lmv_intent_lock(struct obd_export *exp, struct md_op_data *op_data, ldlm_blocking_callback cb_blocking, __u64 extra_lock_flags) { - struct obd_device *obd = exp->exp_obd; - int rc; - ENTRY; - - LASSERT(it != NULL); - LASSERT(fid_is_sane(&op_data->op_fid1)); + int rc; + ENTRY; - CDEBUG(D_INODE, "INTENT LOCK '%s' for '%*s' on "DFID"\n", - LL_IT2STR(it), op_data->op_namelen, op_data->op_name, - PFID(&op_data->op_fid1)); + LASSERT(it != NULL); + LASSERT(fid_is_sane(&op_data->op_fid1)); - rc = lmv_check_connect(obd); - if (rc) - RETURN(rc); + CDEBUG(D_INODE, "INTENT LOCK '%s' for "DFID" '%.*s' on "DFID"\n", + LL_IT2STR(it), PFID(&op_data->op_fid2), + (int)op_data->op_namelen, op_data->op_name, + PFID(&op_data->op_fid1)); - if (it->it_op & (IT_LOOKUP | IT_GETATTR | IT_LAYOUT)) + if (it->it_op & (IT_LOOKUP | IT_GETATTR | IT_LAYOUT | IT_GETXATTR)) rc = lmv_intent_lookup(exp, op_data, it, reqp, cb_blocking, extra_lock_flags); else if (it->it_op & IT_OPEN) @@ -531,5 +490,27 @@ int lmv_intent_lock(struct obd_export *exp, struct md_op_data *op_data, else LBUG(); + if (rc < 0) { + struct lustre_handle lock_handle; + + if (it->it_lock_mode != 0) { + lock_handle.cookie = it->it_lock_handle; + ldlm_lock_decref_and_cancel(&lock_handle, + it->it_lock_mode); + } + + it->it_lock_handle = 0; + it->it_lock_mode = 0; + + if (it->it_remote_lock_mode != 0) { + lock_handle.cookie = it->it_remote_lock_handle; + ldlm_lock_decref_and_cancel(&lock_handle, + it->it_remote_lock_mode); + } + + it->it_remote_lock_handle = 0; + it->it_remote_lock_mode = 0; + } + RETURN(rc); }