diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/mdc/mdc_locks.c')
-rw-r--r-- | drivers/staging/lustre/lustre/mdc/mdc_locks.c | 113 |
1 files changed, 91 insertions, 22 deletions
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c index fb5a9959bf7a..8aa7c80c2002 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c @@ -39,7 +39,6 @@ # include <linux/module.h> # include <linux/pagemap.h> # include <linux/miscdevice.h> -# include <linux/init.h> #include <lustre_acl.h> #include <obd_class.h> @@ -75,6 +74,12 @@ EXPORT_SYMBOL(it_clear_disposition); int it_open_error(int phase, struct lookup_intent *it) { + if (it_disposition(it, DISP_OPEN_LEASE)) { + if (phase >= DISP_OPEN_LEASE) + return it->d.lustre.it_status; + else + return 0; + } if (it_disposition(it, DISP_OPEN_OPEN)) { if (phase >= DISP_OPEN_OPEN) return it->d.lustre.it_status; @@ -281,14 +286,21 @@ static struct ptlrpc_request *mdc_intent_open_pack(struct obd_export *exp, /* XXX: openlock is not cancelled for cross-refs. */ /* If inode is known, cancel conflicting OPEN locks. */ if (fid_is_sane(&op_data->op_fid2)) { - if (it->it_flags & (FMODE_WRITE|MDS_OPEN_TRUNC)) - mode = LCK_CW; + if (it->it_flags & MDS_OPEN_LEASE) { /* try to get lease */ + if (it->it_flags & FMODE_WRITE) + mode = LCK_EX; + else + mode = LCK_PR; + } else { + if (it->it_flags & (FMODE_WRITE|MDS_OPEN_TRUNC)) + mode = LCK_CW; #ifdef FMODE_EXEC - else if (it->it_flags & FMODE_EXEC) - mode = LCK_PR; + else if (it->it_flags & FMODE_EXEC) + mode = LCK_PR; #endif - else - mode = LCK_CR; + else + mode = LCK_CR; + } count = mdc_resource_get_unused(exp, &op_data->op_fid2, &cancels, mode, MDS_INODELOCK_OPEN); @@ -347,6 +359,62 @@ static struct ptlrpc_request *mdc_intent_open_pack(struct obd_export *exp, return req; } +static struct ptlrpc_request * +mdc_intent_getxattr_pack(struct obd_export *exp, + struct lookup_intent *it, + struct md_op_data *op_data) +{ + struct ptlrpc_request *req; + struct ldlm_intent *lit; + int rc, count = 0, maxdata; + LIST_HEAD(cancels); + + + + req = ptlrpc_request_alloc(class_exp2cliimp(exp), + &RQF_LDLM_INTENT_GETXATTR); + if (req == NULL) + return ERR_PTR(-ENOMEM); + + mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1); + + if (it->it_op == IT_SETXATTR) + /* If we want to upgrade to LCK_PW, let's cancel LCK_PR + * locks now. This avoids unnecessary ASTs. */ + count = mdc_resource_get_unused(exp, &op_data->op_fid1, + &cancels, LCK_PW, + MDS_INODELOCK_XATTR); + + rc = ldlm_prep_enqueue_req(exp, req, &cancels, count); + if (rc) { + ptlrpc_request_free(req); + return ERR_PTR(rc); + } + + /* pack the intent */ + lit = req_capsule_client_get(&req->rq_pill, &RMF_LDLM_INTENT); + lit->opc = IT_GETXATTR; + + maxdata = class_exp2cliimp(exp)->imp_connect_data.ocd_max_easize; + + /* pack the intended request */ + mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1, + op_data->op_valid, maxdata, -1, 0); + + req_capsule_set_size(&req->rq_pill, &RMF_EADATA, + RCL_SERVER, maxdata); + + req_capsule_set_size(&req->rq_pill, &RMF_EAVALS, + RCL_SERVER, maxdata); + + req_capsule_set_size(&req->rq_pill, &RMF_EAVALS_LENS, + RCL_SERVER, maxdata); + + ptlrpc_request_set_replen(req); + + return req; +} + static struct ptlrpc_request *mdc_intent_unlink_pack(struct obd_export *exp, struct lookup_intent *it, struct md_op_data *op_data) @@ -722,6 +790,8 @@ int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo, { .l_inodebits = { MDS_INODELOCK_UPDATE } }; static const ldlm_policy_data_t layout_policy = { .l_inodebits = { MDS_INODELOCK_LAYOUT } }; + static const ldlm_policy_data_t getxattr_policy = { + .l_inodebits = { MDS_INODELOCK_XATTR } }; ldlm_policy_data_t const *policy = &lookup_policy; int generation, resends = 0; struct ldlm_reply *lockrep; @@ -738,6 +808,8 @@ int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo, policy = &update_policy; else if (it->it_op & IT_LAYOUT) policy = &layout_policy; + else if (it->it_op & (IT_GETXATTR | IT_SETXATTR)) + policy = &getxattr_policy; } LASSERT(reqp == NULL); @@ -768,9 +840,10 @@ resend: } else if (it->it_op & IT_LAYOUT) { if (!imp_connect_lvb_type(class_exp2cliimp(exp))) return -EOPNOTSUPP; - req = mdc_intent_layout_pack(exp, it, op_data); lvb_type = LVB_T_LAYOUT; + } else if (it->it_op & (IT_GETXATTR | IT_SETXATTR)) { + req = mdc_intent_getxattr_pack(exp, it, op_data); } else { LBUG(); return -EINVAL; @@ -958,13 +1031,8 @@ static int mdc_finish_intent_lock(struct obd_export *exp, LASSERTF(fid_res_name_eq(&mdt_body->fid1, &lock->l_resource->lr_name), - "Lock res_id: %lu/%lu/%lu, fid: %lu/%lu/%lu.\n", - (unsigned long)lock->l_resource->lr_name.name[0], - (unsigned long)lock->l_resource->lr_name.name[1], - (unsigned long)lock->l_resource->lr_name.name[2], - (unsigned long)fid_seq(&mdt_body->fid1), - (unsigned long)fid_oid(&mdt_body->fid1), - (unsigned long)fid_ver(&mdt_body->fid1)); + "Lock res_id: "DLDLMRES", fid: "DFID"\n", + PLDLMRES(lock->l_resource), PFID(&mdt_body->fid1)); LDLM_LOCK_PUT(lock); memcpy(&old_lock, lockh, sizeof(*lockh)); @@ -1065,10 +1133,10 @@ int mdc_intent_lock(struct obd_export *exp, struct md_op_data *op_data, LASSERT(it); CDEBUG(D_DLMTRACE, "(name: %.*s,"DFID") in obj "DFID - ", intent: %s flags %#o\n", op_data->op_namelen, - op_data->op_name, PFID(&op_data->op_fid2), - PFID(&op_data->op_fid1), ldlm_it2str(it->it_op), - it->it_flags); + ", intent: %s flags %#Lo\n", op_data->op_namelen, + op_data->op_name, PFID(&op_data->op_fid2), + PFID(&op_data->op_fid1), ldlm_it2str(it->it_op), + it->it_flags); lockh.cookie = 0; if (fid_is_sane(&op_data->op_fid2) && @@ -1194,9 +1262,10 @@ int mdc_intent_getattr_async(struct obd_export *exp, int rc = 0; __u64 flags = LDLM_FL_HAS_INTENT; - CDEBUG(D_DLMTRACE,"name: %.*s in inode "DFID", intent: %s flags %#o\n", - op_data->op_namelen, op_data->op_name, PFID(&op_data->op_fid1), - ldlm_it2str(it->it_op), it->it_flags); + CDEBUG(D_DLMTRACE, + "name: %.*s in inode "DFID", intent: %s flags %#Lo\n", + op_data->op_namelen, op_data->op_name, PFID(&op_data->op_fid1), + ldlm_it2str(it->it_op), it->it_flags); fid_build_reg_res_name(&op_data->op_fid1, &res_id); req = mdc_intent_getattr_pack(exp, it, op_data); |