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Diffstat (limited to 'drivers/staging/lustre/lustre/osc/osc_object.c')
-rw-r--r--drivers/staging/lustre/lustre/osc/osc_object.c474
1 files changed, 0 insertions, 474 deletions
diff --git a/drivers/staging/lustre/lustre/osc/osc_object.c b/drivers/staging/lustre/lustre/osc/osc_object.c
deleted file mode 100644
index 6baa8e2e00c9..000000000000
--- a/drivers/staging/lustre/lustre/osc/osc_object.c
+++ /dev/null
@@ -1,474 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_object for OSC layer.
- *
- * Author: Nikita Danilov <nikita.danilov@sun.com>
- * Author: Jinshan Xiong <jinshan.xiong@intel.com>
- */
-
-#define DEBUG_SUBSYSTEM S_OSC
-
-#include "osc_cl_internal.h"
-
-/** \addtogroup osc
- * @{
- */
-
-/*****************************************************************************
- *
- * Type conversions.
- *
- */
-
-static struct lu_object *osc2lu(struct osc_object *osc)
-{
- return &osc->oo_cl.co_lu;
-}
-
-static struct osc_object *lu2osc(const struct lu_object *obj)
-{
- LINVRNT(osc_is_object(obj));
- return container_of0(obj, struct osc_object, oo_cl.co_lu);
-}
-
-/*****************************************************************************
- *
- * Object operations.
- *
- */
-
-static int osc_object_init(const struct lu_env *env, struct lu_object *obj,
- const struct lu_object_conf *conf)
-{
- struct osc_object *osc = lu2osc(obj);
- const struct cl_object_conf *cconf = lu2cl_conf(conf);
-
- osc->oo_oinfo = cconf->u.coc_oinfo;
- INIT_LIST_HEAD(&osc->oo_ready_item);
- INIT_LIST_HEAD(&osc->oo_hp_ready_item);
- INIT_LIST_HEAD(&osc->oo_write_item);
- INIT_LIST_HEAD(&osc->oo_read_item);
-
- atomic_set(&osc->oo_nr_ios, 0);
- init_waitqueue_head(&osc->oo_io_waitq);
-
- osc->oo_root.rb_node = NULL;
- INIT_LIST_HEAD(&osc->oo_hp_exts);
- INIT_LIST_HEAD(&osc->oo_urgent_exts);
- INIT_LIST_HEAD(&osc->oo_rpc_exts);
- INIT_LIST_HEAD(&osc->oo_reading_exts);
- atomic_set(&osc->oo_nr_reads, 0);
- atomic_set(&osc->oo_nr_writes, 0);
- spin_lock_init(&osc->oo_lock);
- spin_lock_init(&osc->oo_tree_lock);
- spin_lock_init(&osc->oo_ol_spin);
- INIT_LIST_HEAD(&osc->oo_ol_list);
-
- cl_object_page_init(lu2cl(obj), sizeof(struct osc_page));
-
- return 0;
-}
-
-static void osc_object_free(const struct lu_env *env, struct lu_object *obj)
-{
- struct osc_object *osc = lu2osc(obj);
-
- LASSERT(list_empty(&osc->oo_ready_item));
- LASSERT(list_empty(&osc->oo_hp_ready_item));
- LASSERT(list_empty(&osc->oo_write_item));
- LASSERT(list_empty(&osc->oo_read_item));
-
- LASSERT(!osc->oo_root.rb_node);
- LASSERT(list_empty(&osc->oo_hp_exts));
- LASSERT(list_empty(&osc->oo_urgent_exts));
- LASSERT(list_empty(&osc->oo_rpc_exts));
- LASSERT(list_empty(&osc->oo_reading_exts));
- LASSERT(atomic_read(&osc->oo_nr_reads) == 0);
- LASSERT(atomic_read(&osc->oo_nr_writes) == 0);
- LASSERT(list_empty(&osc->oo_ol_list));
- LASSERT(!atomic_read(&osc->oo_nr_ios));
-
- lu_object_fini(obj);
- kmem_cache_free(osc_object_kmem, osc);
-}
-
-int osc_lvb_print(const struct lu_env *env, void *cookie,
- lu_printer_t p, const struct ost_lvb *lvb)
-{
- return (*p)(env, cookie, "size: %llu mtime: %llu atime: %llu ctime: %llu blocks: %llu",
- lvb->lvb_size, lvb->lvb_mtime, lvb->lvb_atime,
- lvb->lvb_ctime, lvb->lvb_blocks);
-}
-
-static int osc_object_print(const struct lu_env *env, void *cookie,
- lu_printer_t p, const struct lu_object *obj)
-{
- struct osc_object *osc = lu2osc(obj);
- struct lov_oinfo *oinfo = osc->oo_oinfo;
- struct osc_async_rc *ar = &oinfo->loi_ar;
-
- (*p)(env, cookie, "id: " DOSTID " idx: %d gen: %d kms_valid: %u kms %llu rc: %d force_sync: %d min_xid: %llu ",
- POSTID(&oinfo->loi_oi), oinfo->loi_ost_idx,
- oinfo->loi_ost_gen, oinfo->loi_kms_valid, oinfo->loi_kms,
- ar->ar_rc, ar->ar_force_sync, ar->ar_min_xid);
- osc_lvb_print(env, cookie, p, &oinfo->loi_lvb);
- return 0;
-}
-
-static int osc_attr_get(const struct lu_env *env, struct cl_object *obj,
- struct cl_attr *attr)
-{
- struct lov_oinfo *oinfo = cl2osc(obj)->oo_oinfo;
-
- cl_lvb2attr(attr, &oinfo->loi_lvb);
- attr->cat_kms = oinfo->loi_kms_valid ? oinfo->loi_kms : 0;
- return 0;
-}
-
-static int osc_attr_update(const struct lu_env *env, struct cl_object *obj,
- const struct cl_attr *attr, unsigned int valid)
-{
- struct lov_oinfo *oinfo = cl2osc(obj)->oo_oinfo;
- struct ost_lvb *lvb = &oinfo->loi_lvb;
-
- if (valid & CAT_SIZE)
- lvb->lvb_size = attr->cat_size;
- if (valid & CAT_MTIME)
- lvb->lvb_mtime = attr->cat_mtime;
- if (valid & CAT_ATIME)
- lvb->lvb_atime = attr->cat_atime;
- if (valid & CAT_CTIME)
- lvb->lvb_ctime = attr->cat_ctime;
- if (valid & CAT_BLOCKS)
- lvb->lvb_blocks = attr->cat_blocks;
- if (valid & CAT_KMS) {
- CDEBUG(D_CACHE, "set kms from %llu to %llu\n",
- oinfo->loi_kms, (__u64)attr->cat_kms);
- loi_kms_set(oinfo, attr->cat_kms);
- }
- return 0;
-}
-
-static int osc_object_glimpse(const struct lu_env *env,
- const struct cl_object *obj, struct ost_lvb *lvb)
-{
- struct lov_oinfo *oinfo = cl2osc(obj)->oo_oinfo;
-
- lvb->lvb_size = oinfo->loi_kms;
- lvb->lvb_blocks = oinfo->loi_lvb.lvb_blocks;
- return 0;
-}
-
-static int osc_object_ast_clear(struct ldlm_lock *lock, void *data)
-{
- if (lock->l_ast_data == data)
- lock->l_ast_data = NULL;
- return LDLM_ITER_CONTINUE;
-}
-
-static int osc_object_prune(const struct lu_env *env, struct cl_object *obj)
-{
- struct osc_object *osc = cl2osc(obj);
- struct ldlm_res_id *resname = &osc_env_info(env)->oti_resname;
-
- /* DLM locks don't hold a reference of osc_object so we have to
- * clear it before the object is being destroyed.
- */
- ostid_build_res_name(&osc->oo_oinfo->loi_oi, resname);
- ldlm_resource_iterate(osc_export(osc)->exp_obd->obd_namespace, resname,
- osc_object_ast_clear, osc);
- return 0;
-}
-
-static int osc_object_fiemap(const struct lu_env *env, struct cl_object *obj,
- struct ll_fiemap_info_key *fmkey,
- struct fiemap *fiemap, size_t *buflen)
-{
- struct obd_export *exp = osc_export(cl2osc(obj));
- union ldlm_policy_data policy;
- struct ptlrpc_request *req;
- struct lustre_handle lockh;
- struct ldlm_res_id resid;
- enum ldlm_mode mode = 0;
- struct fiemap *reply;
- char *tmp;
- int rc;
-
- fmkey->lfik_oa.o_oi = cl2osc(obj)->oo_oinfo->loi_oi;
- if (!(fmkey->lfik_fiemap.fm_flags & FIEMAP_FLAG_SYNC))
- goto skip_locking;
-
- policy.l_extent.start = fmkey->lfik_fiemap.fm_start & PAGE_MASK;
-
- if (OBD_OBJECT_EOF - fmkey->lfik_fiemap.fm_length <=
- fmkey->lfik_fiemap.fm_start + PAGE_SIZE - 1)
- policy.l_extent.end = OBD_OBJECT_EOF;
- else
- policy.l_extent.end = (fmkey->lfik_fiemap.fm_start +
- fmkey->lfik_fiemap.fm_length +
- PAGE_SIZE - 1) & PAGE_MASK;
-
- ostid_build_res_name(&fmkey->lfik_oa.o_oi, &resid);
- mode = ldlm_lock_match(exp->exp_obd->obd_namespace,
- LDLM_FL_BLOCK_GRANTED | LDLM_FL_LVB_READY,
- &resid, LDLM_EXTENT, &policy,
- LCK_PR | LCK_PW, &lockh, 0);
- if (mode) { /* lock is cached on client */
- if (mode != LCK_PR) {
- ldlm_lock_addref(&lockh, LCK_PR);
- ldlm_lock_decref(&lockh, LCK_PW);
- }
- } else { /* no cached lock, needs acquire lock on server side */
- fmkey->lfik_oa.o_valid |= OBD_MD_FLFLAGS;
- fmkey->lfik_oa.o_flags |= OBD_FL_SRVLOCK;
- }
-
-skip_locking:
- req = ptlrpc_request_alloc(class_exp2cliimp(exp),
- &RQF_OST_GET_INFO_FIEMAP);
- if (!req) {
- rc = -ENOMEM;
- goto drop_lock;
- }
-
- req_capsule_set_size(&req->rq_pill, &RMF_FIEMAP_KEY, RCL_CLIENT,
- sizeof(*fmkey));
- req_capsule_set_size(&req->rq_pill, &RMF_FIEMAP_VAL, RCL_CLIENT,
- *buflen);
- req_capsule_set_size(&req->rq_pill, &RMF_FIEMAP_VAL, RCL_SERVER,
- *buflen);
-
- rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_GET_INFO);
- if (rc) {
- ptlrpc_request_free(req);
- goto drop_lock;
- }
- tmp = req_capsule_client_get(&req->rq_pill, &RMF_FIEMAP_KEY);
- memcpy(tmp, fmkey, sizeof(*fmkey));
- tmp = req_capsule_client_get(&req->rq_pill, &RMF_FIEMAP_VAL);
- memcpy(tmp, fiemap, *buflen);
- ptlrpc_request_set_replen(req);
-
- rc = ptlrpc_queue_wait(req);
- if (rc)
- goto fini_req;
-
- reply = req_capsule_server_get(&req->rq_pill, &RMF_FIEMAP_VAL);
- if (!reply) {
- rc = -EPROTO;
- goto fini_req;
- }
-
- memcpy(fiemap, reply, *buflen);
-fini_req:
- ptlrpc_req_finished(req);
-drop_lock:
- if (mode)
- ldlm_lock_decref(&lockh, LCK_PR);
- return rc;
-}
-
-void osc_object_set_contended(struct osc_object *obj)
-{
- obj->oo_contention_time = cfs_time_current();
- /* mb(); */
- obj->oo_contended = 1;
-}
-
-void osc_object_clear_contended(struct osc_object *obj)
-{
- obj->oo_contended = 0;
-}
-
-int osc_object_is_contended(struct osc_object *obj)
-{
- struct osc_device *dev = lu2osc_dev(obj->oo_cl.co_lu.lo_dev);
- int osc_contention_time = dev->od_contention_time;
- unsigned long cur_time = cfs_time_current();
- unsigned long retry_time;
-
- if (OBD_FAIL_CHECK(OBD_FAIL_OSC_OBJECT_CONTENTION))
- return 1;
-
- if (!obj->oo_contended)
- return 0;
-
- /*
- * I like copy-paste. the code is copied from
- * ll_file_is_contended.
- */
- retry_time = cfs_time_add(obj->oo_contention_time,
- osc_contention_time * HZ);
- if (cfs_time_after(cur_time, retry_time)) {
- osc_object_clear_contended(obj);
- return 0;
- }
- return 1;
-}
-
-/**
- * Implementation of struct cl_object_operations::coo_req_attr_set() for osc
- * layer. osc is responsible for struct obdo::o_id and struct obdo::o_seq
- * fields.
- */
-static void osc_req_attr_set(const struct lu_env *env, struct cl_object *obj,
- struct cl_req_attr *attr)
-{
- u64 flags = attr->cra_flags;
- struct lov_oinfo *oinfo;
- struct ost_lvb *lvb;
- struct obdo *oa;
-
- oinfo = cl2osc(obj)->oo_oinfo;
- lvb = &oinfo->loi_lvb;
- oa = attr->cra_oa;
-
- if (flags & OBD_MD_FLMTIME) {
- oa->o_mtime = lvb->lvb_mtime;
- oa->o_valid |= OBD_MD_FLMTIME;
- }
- if (flags & OBD_MD_FLATIME) {
- oa->o_atime = lvb->lvb_atime;
- oa->o_valid |= OBD_MD_FLATIME;
- }
- if (flags & OBD_MD_FLCTIME) {
- oa->o_ctime = lvb->lvb_ctime;
- oa->o_valid |= OBD_MD_FLCTIME;
- }
- if (flags & OBD_MD_FLGROUP) {
- ostid_set_seq(&oa->o_oi, ostid_seq(&oinfo->loi_oi));
- oa->o_valid |= OBD_MD_FLGROUP;
- }
- if (flags & OBD_MD_FLID) {
- int rc;
-
- rc = ostid_set_id(&oa->o_oi, ostid_id(&oinfo->loi_oi));
- if (rc) {
- CERROR("Bad %llu to set " DOSTID " : rc %d\n",
- (unsigned long long)ostid_id(&oinfo->loi_oi),
- POSTID(&oa->o_oi), rc);
- }
- oa->o_valid |= OBD_MD_FLID;
- }
- if (flags & OBD_MD_FLHANDLE) {
- struct ldlm_lock *lock;
- struct osc_page *opg;
-
- opg = osc_cl_page_osc(attr->cra_page, cl2osc(obj));
- lock = osc_dlmlock_at_pgoff(env, cl2osc(obj), osc_index(opg),
- OSC_DAP_FL_TEST_LOCK | OSC_DAP_FL_CANCELING);
- if (!lock && !opg->ops_srvlock) {
- struct ldlm_resource *res;
- struct ldlm_res_id *resname;
-
- CL_PAGE_DEBUG(D_ERROR, env, attr->cra_page,
- "uncovered page!\n");
-
- resname = &osc_env_info(env)->oti_resname;
- ostid_build_res_name(&oinfo->loi_oi, resname);
- res = ldlm_resource_get(
- osc_export(cl2osc(obj))->exp_obd->obd_namespace,
- NULL, resname, LDLM_EXTENT, 0);
- ldlm_resource_dump(D_ERROR, res);
-
- LBUG();
- }
-
- /* check for lockless io. */
- if (lock) {
- oa->o_handle = lock->l_remote_handle;
- oa->o_valid |= OBD_MD_FLHANDLE;
- LDLM_LOCK_PUT(lock);
- }
- }
-}
-
-static const struct cl_object_operations osc_ops = {
- .coo_page_init = osc_page_init,
- .coo_lock_init = osc_lock_init,
- .coo_io_init = osc_io_init,
- .coo_attr_get = osc_attr_get,
- .coo_attr_update = osc_attr_update,
- .coo_glimpse = osc_object_glimpse,
- .coo_prune = osc_object_prune,
- .coo_fiemap = osc_object_fiemap,
- .coo_req_attr_set = osc_req_attr_set
-};
-
-static const struct lu_object_operations osc_lu_obj_ops = {
- .loo_object_init = osc_object_init,
- .loo_object_release = NULL,
- .loo_object_free = osc_object_free,
- .loo_object_print = osc_object_print,
- .loo_object_invariant = NULL
-};
-
-struct lu_object *osc_object_alloc(const struct lu_env *env,
- const struct lu_object_header *unused,
- struct lu_device *dev)
-{
- struct osc_object *osc;
- struct lu_object *obj;
-
- osc = kmem_cache_zalloc(osc_object_kmem, GFP_NOFS);
- if (osc) {
- obj = osc2lu(osc);
- lu_object_init(obj, NULL, dev);
- osc->oo_cl.co_ops = &osc_ops;
- obj->lo_ops = &osc_lu_obj_ops;
- } else {
- obj = NULL;
- }
- return obj;
-}
-
-int osc_object_invalidate(const struct lu_env *env, struct osc_object *osc)
-{
- CDEBUG(D_INODE, "Invalidate osc object: %p, # of active IOs: %d\n",
- osc, atomic_read(&osc->oo_nr_ios));
-
- wait_event_idle(osc->oo_io_waitq, !atomic_read(&osc->oo_nr_ios));
-
- /* Discard all dirty pages of this object. */
- osc_cache_truncate_start(env, osc, 0, NULL);
-
- /* Discard all caching pages */
- osc_lock_discard_pages(env, osc, 0, CL_PAGE_EOF, CLM_WRITE);
-
- /* Clear ast data of dlm lock. Do this after discarding all pages */
- osc_object_prune(env, osc2cl(osc));
-
- return 0;
-}
-
-/** @} osc */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.