-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Implementation of cl_object for OSC layer.
*
* Author: Nikita Danilov <nikita.danilov@sun.com>
+ * Author: Jinshan Xiong <jinshan.xiong@intel.com>
*/
-/** \addtogroup osc osc @{ */
-
#define DEBUG_SUBSYSTEM S_OSC
+#include <lustre_osc.h>
-#include "osc_cl_internal.h"
+#include "osc_internal.h"
-/*****************************************************************************
- *
- * Type conversions.
- *
+/** \addtogroup osc
+ * @{
*/
-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 void osc_obj_build_res_name(struct osc_object *osc,
+ struct ldlm_res_id *resname)
+{
+ ostid_build_res_name(&osc->oo_oinfo->loi_oi, resname);
+}
+
+static const struct osc_object_operations osc_object_ops = {
+ .oto_build_res_name = osc_obj_build_res_name,
+ .oto_dlmlock_at_pgoff = osc_obj_dlmlock_at_pgoff,
+};
-static int osc_object_init(const struct lu_env *env, struct lu_object *obj,
- const struct lu_object_conf *conf)
+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);
- int i;
- osc->oo_oinfo = cconf->u.coc_oinfo;
-#ifdef INVARIANT_CHECK
- mutex_init(&osc->oo_debug_mutex);
+ osc->oo_oinfo = cconf->u.coc_oinfo;
+#ifdef CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK
+ mutex_init(&osc->oo_debug_mutex);
#endif
- spin_lock_init(&osc->oo_seatbelt);
- for (i = 0; i < CRT_NR; ++i)
- CFS_INIT_LIST_HEAD(&osc->oo_inflight[i]);
- return 0;
+ 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);
+
+ 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_full_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);
+
+ atomic_set(&osc->oo_nr_ios, 0);
+ init_waitqueue_head(&osc->oo_io_waitq);
+
+ LASSERT(osc->oo_obj_ops != NULL);
+
+ cl_object_page_init(lu2cl(obj), sizeof(struct osc_page));
+
+ return 0;
}
+EXPORT_SYMBOL(osc_object_init);
-static void osc_object_free(const struct lu_env *env, struct lu_object *obj)
+void osc_object_free(const struct lu_env *env, struct lu_object *obj)
{
- struct osc_object *osc = lu2osc(obj);
- int i;
-
- for (i = 0; i < CRT_NR; ++i)
- LASSERT(list_empty(&osc->oo_inflight[i]));
-
- lu_object_fini(obj);
- OBD_SLAB_FREE_PTR(osc, osc_object_kmem);
+ 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 == NULL);
+ LASSERT(list_empty(&osc->oo_hp_exts));
+ LASSERT(list_empty(&osc->oo_urgent_exts));
+ LASSERT(list_empty(&osc->oo_full_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) == 0);
+
+ lu_object_fini(obj);
+ OBD_SLAB_FREE_PTR(osc, osc_object_kmem);
}
+EXPORT_SYMBOL(osc_object_free);
int osc_lvb_print(const struct lu_env *env, void *cookie,
- lu_printer_t p, const struct ost_lvb *lvb)
+ lu_printer_t p, const struct ost_lvb *lvb)
{
- return (*p)(env, cookie, "size: "LPU64" mtime: "LPU64" atime: "LPU64" "
- "ctime: "LPU64" blocks: "LPU64,
+ 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);
}
+EXPORT_SYMBOL(osc_lvb_print);
-static int osc_object_print(const struct lu_env *env, void *cookie,
- lu_printer_t p, const struct lu_object *obj)
+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: "LPU64" gr: "LPU64" "
- "idx: %d gen: %d kms_valid: %u kms "LPU64" "
- "rc: %d force_sync: %d min_xid: "LPU64" ",
- oinfo->loi_id, oinfo->loi_gr, 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;
+ 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;
}
+EXPORT_SYMBOL(osc_object_print);
-static int osc_attr_get(const struct lu_env *env, struct cl_object *obj,
- struct cl_attr *attr)
+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;
+ 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;
+ cl_lvb2attr(attr, &oinfo->loi_lvb);
+ attr->cat_kms = oinfo->loi_kms_valid ? oinfo->loi_kms : 0;
+ return 0;
}
+EXPORT_SYMBOL(osc_attr_get);
-int osc_attr_set(const struct lu_env *env, struct cl_object *obj,
- const struct cl_attr *attr, unsigned valid)
+int osc_attr_update(const struct lu_env *env, struct cl_object *obj,
+ const struct cl_attr *attr, unsigned 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)
- loi_kms_set(oinfo, attr->cat_kms);
- return 0;
+ 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 %lluto %llu\n",
+ oinfo->loi_kms, (__u64)attr->cat_kms);
+ loi_kms_set(oinfo, attr->cat_kms);
+ }
+ return 0;
}
+EXPORT_SYMBOL(osc_attr_update);
-static int osc_object_glimpse(const struct lu_env *env,
- const struct cl_object *obj, struct ost_lvb *lvb)
+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;
+ struct lov_oinfo *oinfo = cl2osc(obj)->oo_oinfo;
- ENTRY;
- lvb->lvb_size = oinfo->loi_kms;
- lvb->lvb_blocks = oinfo->loi_lvb.lvb_blocks;
- RETURN(0);
+ lvb->lvb_size = oinfo->loi_kms;
+ lvb->lvb_blocks = oinfo->loi_lvb.lvb_blocks;
+ return 0;
}
+EXPORT_SYMBOL(osc_object_glimpse);
+static int osc_object_ast_clear(struct ldlm_lock *lock, void *data)
+{
+ struct osc_object *osc = (struct osc_object *)data;
+ struct ost_lvb *lvb = lock->l_lvb_data;
+ struct lov_oinfo *oinfo;
+ ENTRY;
+
+ if (lock->l_ast_data == data) {
+ lock->l_ast_data = NULL;
+
+ LASSERT(osc != NULL);
+ LASSERT(osc->oo_oinfo != NULL);
+ LASSERT(lvb != NULL);
+
+ /* Updates lvb in lock by the cached oinfo */
+ oinfo = osc->oo_oinfo;
+
+ LDLM_DEBUG(lock, "update lock size %llu blocks %llu [cma]time: "
+ "%llu %llu %llu by oinfo size %llu blocks %llu "
+ "[cma]time %llu %llu %llu", lvb->lvb_size,
+ lvb->lvb_blocks, lvb->lvb_ctime, lvb->lvb_mtime,
+ lvb->lvb_atime, oinfo->loi_lvb.lvb_size,
+ oinfo->loi_lvb.lvb_blocks, oinfo->loi_lvb.lvb_ctime,
+ oinfo->loi_lvb.lvb_mtime, oinfo->loi_lvb.lvb_atime);
+ LASSERT(oinfo->loi_lvb.lvb_size >= oinfo->loi_kms);
+
+ cl_object_attr_lock(&osc->oo_cl);
+ memcpy(lvb, &oinfo->loi_lvb, sizeof(oinfo->loi_lvb));
+ cl_object_attr_unlock(&osc->oo_cl);
+ ldlm_clear_lvb_cached(lock);
+ }
+ RETURN(LDLM_ITER_CONTINUE);
+}
-void osc_object_set_contended(struct osc_object *obj)
+int osc_object_prune(const struct lu_env *env, struct cl_object *obj)
{
- obj->oo_contention_time = cfs_time_current();
- /* mb(); */
- obj->oo_contended = 1;
+ 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. */
+ osc_build_res_name(osc, resname);
+ ldlm_resource_iterate(osc_export(osc)->exp_obd->obd_namespace, resname,
+ osc_object_ast_clear, osc);
+ return 0;
}
+EXPORT_SYMBOL(osc_object_prune);
-void osc_object_clear_contended(struct osc_object *obj)
+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)
{
- obj->oo_contended = 0;
+ struct obd_export *exp = osc_export(cl2osc(obj));
+ struct ldlm_res_id resid;
+ union ldlm_policy_data policy;
+ struct lustre_handle lockh;
+ enum ldlm_mode mode = LCK_MINMODE;
+ struct ptlrpc_request *req;
+ struct fiemap *reply;
+ char *tmp;
+ int rc;
+ ENTRY;
+
+ 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 == NULL)
+ GOTO(drop_lock, rc = -ENOMEM);
+
+ 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 != 0) {
+ ptlrpc_request_free(req);
+ GOTO(drop_lock, rc);
+ }
+ 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 != 0)
+ GOTO(fini_req, rc);
+
+ reply = req_capsule_server_get(&req->rq_pill, &RMF_FIEMAP_VAL);
+ if (reply == NULL)
+ GOTO(fini_req, rc = -EPROTO);
+
+ memcpy(fiemap, reply, *buflen);
+fini_req:
+ ptlrpc_req_finished(req);
+drop_lock:
+ if (mode)
+ ldlm_lock_decref(&lockh, LCK_PR);
+ RETURN(rc);
}
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;
- cfs_time_t cur_time = cfs_time_current();
- cfs_time_t retry_time;
+ struct osc_device *dev = lu2osc_dev(obj->oo_cl.co_lu.lo_dev);
+ time64_t osc_contention_time = dev->od_contention_time;
+ ktime_t 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,
- cfs_time_seconds(osc_contention_time));
- if (cfs_time_after(cur_time, retry_time)) {
- osc_object_clear_contended(obj);
- return 0;
- }
- return 1;
+ /*
+ * I like copy-paste. the code is copied from
+ * ll_file_is_contended.
+ */
+ retry_time = ktime_add_ns(obj->oo_contention_time,
+ osc_contention_time * NSEC_PER_SEC);
+ if (ktime_after(ktime_get(), retry_time)) {
+ osc_object_clear_contended(obj);
+ return 0;
+ }
+ return 1;
+}
+EXPORT_SYMBOL(osc_object_is_contended);
+
+/**
+ * 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)
+{
+ struct lov_oinfo *oinfo;
+ struct obdo *oa;
+ struct ost_lvb *lvb;
+ u64 flags = attr->cra_flags;
+
+ oinfo = cl2osc(obj)->oo_oinfo;
+ lvb = &oinfo->loi_lvb;
+ oa = attr->cra_oa;
+
+ if ((flags & OBD_MD_FLMTIME) != 0) {
+ oa->o_mtime = lvb->lvb_mtime;
+ oa->o_valid |= OBD_MD_FLMTIME;
+ }
+ if ((flags & OBD_MD_FLATIME) != 0) {
+ oa->o_atime = lvb->lvb_atime;
+ oa->o_valid |= OBD_MD_FLATIME;
+ }
+ if ((flags & OBD_MD_FLCTIME) != 0) {
+ 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 == NULL && !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);
+
+ libcfs_debug_dumpstack(NULL);
+ LBUG();
+ }
+
+ /* check for lockless io. */
+ if (lock != NULL) {
+ 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_set = osc_attr_set,
- .coo_glimpse = osc_object_glimpse
+ .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_delete = NULL,
- .loo_object_release = NULL,
- .loo_object_free = osc_object_free,
- .loo_object_print = osc_object_print,
- .loo_object_invariant = NULL
+ .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 *_,
- struct lu_device *dev)
+ const struct lu_object_header *unused,
+ struct lu_device *dev)
{
- struct osc_object *osc;
- struct lu_object *obj;
-
- OBD_SLAB_ALLOC_PTR_GFP(osc, osc_object_kmem, CFS_ALLOC_IO);
- if (osc != NULL) {
- 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;
+ struct osc_object *osc;
+ struct lu_object *obj;
+
+ OBD_SLAB_ALLOC_PTR_GFP(osc, osc_object_kmem, GFP_NOFS);
+ if (osc != NULL) {
+ obj = osc2lu(osc);
+ lu_object_init(obj, NULL, dev);
+ osc->oo_cl.co_ops = &osc_ops;
+ obj->lo_ops = &osc_lu_obj_ops;
+ osc->oo_obj_ops = &osc_object_ops;
+ } else
+ obj = NULL;
+ return obj;
}
+int osc_object_invalidate(const struct lu_env *env, struct osc_object *osc)
+{
+ struct l_wait_info lwi = { 0 };
+ ENTRY;
+
+ CDEBUG(D_INODE, "Invalidate osc object: %p, # of active IOs: %d\n",
+ osc, atomic_read(&osc->oo_nr_ios));
+
+ l_wait_event(osc->oo_io_waitq, atomic_read(&osc->oo_nr_ios) == 0, &lwi);
+
+ /* 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, true);
+
+ /* Clear ast data of dlm lock. Do this after discarding all pages */
+ osc_object_prune(env, osc2cl(osc));
+
+ RETURN(0);
+}
+EXPORT_SYMBOL(osc_object_invalidate);
/** @} osc */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff