* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include "osc_cl_internal.h"
-/** \addtogroup osc
- * @{
+/** \addtogroup osc
+ * @{
*/
/*****************************************************************************
{
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 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]);
-
- CFS_INIT_LIST_HEAD(&osc->oo_ready_item);
- CFS_INIT_LIST_HEAD(&osc->oo_hp_ready_item);
- CFS_INIT_LIST_HEAD(&osc->oo_write_item);
- CFS_INIT_LIST_HEAD(&osc->oo_read_item);
+ 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;
- CFS_INIT_LIST_HEAD(&osc->oo_hp_exts);
- CFS_INIT_LIST_HEAD(&osc->oo_urgent_exts);
- CFS_INIT_LIST_HEAD(&osc->oo_rpc_exts);
- CFS_INIT_LIST_HEAD(&osc->oo_reading_exts);
- cfs_atomic_set(&osc->oo_nr_reads, 0);
- cfs_atomic_set(&osc->oo_nr_writes, 0);
+ 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);
+
+ atomic_set(&osc->oo_nr_ios, 0);
+ init_waitqueue_head(&osc->oo_io_waitq);
cl_object_page_init(lu2cl(obj), sizeof(struct osc_page));
static 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(cfs_list_empty(&osc->oo_inflight[i]));
-
- LASSERT(cfs_list_empty(&osc->oo_ready_item));
- LASSERT(cfs_list_empty(&osc->oo_hp_ready_item));
- LASSERT(cfs_list_empty(&osc->oo_write_item));
- LASSERT(cfs_list_empty(&osc->oo_read_item));
+ 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(cfs_list_empty(&osc->oo_hp_exts));
- LASSERT(cfs_list_empty(&osc->oo_urgent_exts));
- LASSERT(cfs_list_empty(&osc->oo_rpc_exts));
- LASSERT(cfs_list_empty(&osc->oo_reading_exts));
- LASSERT(cfs_atomic_read(&osc->oo_nr_reads) == 0);
- LASSERT(cfs_atomic_read(&osc->oo_nr_writes) == 0);
+ 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) == 0);
lu_object_fini(obj);
OBD_SLAB_FREE_PTR(osc, osc_object_kmem);
return 0;
}
-int osc_attr_set(const struct lu_env *env, struct cl_object *obj,
- const struct cl_attr *attr, unsigned valid)
+static 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) {
- CDEBUG(D_CACHE, "set kms from "LPU64"to "LPU64"\n",
- oinfo->loi_kms, (__u64)attr->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 "LPU64"to "LPU64"\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,
RETURN(0);
}
+static int osc_object_ast_clear(struct ldlm_lock *lock, void *data)
+{
+ ENTRY;
+
+ 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;
+
+ LASSERTF(osc->oo_npages == 0,
+ DFID "still have %lu pages, obj: %p, osc: %p\n",
+ PFID(lu_object_fid(&obj->co_lu)), osc->oo_npages, obj, osc);
+
+ /* 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;
+}
+/**
+ * Find any ldlm lock covers the osc object.
+ * \retval 0 not found
+ * \retval 1 find one
+ * \retval < 0 error
+ */
+static int osc_object_find_cbdata(const struct lu_env *env,
+ struct cl_object *obj, ldlm_iterator_t iter,
+ void *data)
+{
+ struct ldlm_res_id res_id;
+ struct obd_device *obd;
+ int rc = 0;
+
+ ostid_build_res_name(&cl2osc(obj)->oo_oinfo->loi_oi, &res_id);
+ obd = obj->co_lu.lo_dev->ld_obd;
+ rc = ldlm_resource_iterate(obd->obd_namespace, &res_id, iter, data);
+ if (rc == LDLM_ITER_STOP)
+ return 1;
+
+ if (rc == LDLM_ITER_CONTINUE)
+ return 0;
+
+ return rc;
+}
+
+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));
+ 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_CACHE_MASK;
+
+ if (OBD_OBJECT_EOF - fmkey->lfik_fiemap.fm_length <=
+ fmkey->lfik_fiemap.fm_start + PAGE_CACHE_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_CACHE_SIZE - 1) & PAGE_CACHE_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);
+}
void osc_object_set_contended(struct osc_object *obj)
{
}
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_find_cbdata = osc_object_find_cbdata,
+ .coo_fiemap = osc_object_fiemap,
};
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 *unused,
- 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, __GFP_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;
+ } 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 pages of this object. */
+ osc_cache_truncate_start(env, osc, 0, NULL);
+
+ RETURN(0);
}
/** @} osc */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff