* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011 Whamcloud, Inc.
+ *
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <lustre_debug.h>
#include <lprocfs_status.h>
#include <cl_object.h>
+#include <lustre_fid.h>
+#include <lustre_acl.h>
#include "echo_internal.h"
+/** \defgroup echo_client Echo Client
+ * @{
+ */
+
struct echo_device {
struct cl_device ed_cl;
struct echo_client_obd *ed_ec;
struct cl_site *ed_site;
struct lu_device *ed_next;
int ed_next_islov;
+ int ed_next_ismd;
+ struct lu_client_seq *ed_cl_seq;
};
struct echo_object {
struct cl_object_header eo_hdr;
struct echo_device *eo_dev;
- struct list_head eo_obj_chain;
+ cfs_list_t eo_obj_chain;
struct lov_stripe_md *eo_lsm;
- atomic_t eo_npages;
+ cfs_atomic_t eo_npages;
int eo_deleted;
};
struct echo_page {
struct cl_page_slice ep_cl;
- struct cl_sync_io *ep_sync_io;
+ cfs_mutex_t ep_lock;
cfs_page_t *ep_vmpage;
};
struct echo_lock {
struct cl_lock_slice el_cl;
- struct list_head el_chain;
+ cfs_list_t el_chain;
struct echo_object *el_object;
__u64 el_cookie;
+ cfs_atomic_t el_refcount;
};
struct echo_io {
};
#endif
-static int echo_client_setup(struct obd_device *obddev,
+static int echo_client_setup(const struct lu_env *env,
+ struct obd_device *obddev,
struct lustre_cfg *lcfg);
static int echo_client_cleanup(struct obd_device *obddev);
-/** \defgroup echo_helpers
+/** \defgroup echo_helpers Helper functions
* @{
*/
static inline struct echo_device *cl2echo_dev(const struct cl_device *dev)
static inline void lsm2fid(struct lov_stripe_md *lsm, struct lu_fid *fid)
{
fid_zero(fid);
- fid->f_seq = lsm->lsm_object_gr << 16 | lsm->lsm_object_id >> 32;
+ fid->f_seq = FID_SEQ_ECHO;
+ /* truncated to 32 bits by assignment */
fid->f_oid = lsm->lsm_object_id;
+ fid->f_ver = lsm->lsm_object_id >> 32;
}
/** @} echo_helpers */
struct cl_2queue eti_queue;
struct cl_io eti_io;
- struct cl_sync_io eti_anchor;
struct cl_lock_descr eti_descr;
struct lu_fid eti_fid;
+ struct md_op_spec eti_spec;
+ struct lov_mds_md_v3 eti_lmm;
+ struct lov_user_md_v3 eti_lum;
+ struct md_attr eti_ma;
+ struct lu_name eti_lname;
+ char eti_name[20];
+ char eti_xattr_buf[LUSTRE_POSIX_ACL_MAX_SIZE];
};
/* No session used right now */
}
};
-/** defgroup echo_page echo_page
+/** \defgroup echo_page Page operations
*
* Echo page operations.
*
return cl2echo_page(slice)->ep_vmpage;
}
+static int echo_page_own(const struct lu_env *env,
+ const struct cl_page_slice *slice,
+ struct cl_io *io, int nonblock)
+{
+ struct echo_page *ep = cl2echo_page(slice);
+
+ if (!nonblock)
+ cfs_mutex_lock(&ep->ep_lock);
+ else if (!cfs_mutex_trylock(&ep->ep_lock))
+ return -EAGAIN;
+ return 0;
+}
+
+static void echo_page_disown(const struct lu_env *env,
+ const struct cl_page_slice *slice,
+ struct cl_io *io)
+{
+ struct echo_page *ep = cl2echo_page(slice);
+
+ LASSERT(cfs_mutex_is_locked(&ep->ep_lock));
+ cfs_mutex_unlock(&ep->ep_lock);
+}
+
static void echo_page_discard(const struct lu_env *env,
const struct cl_page_slice *slice,
- struct cl_io *_)
+ struct cl_io *unused)
{
cl_page_delete(env, slice->cpl_page);
}
static int echo_page_is_vmlocked(const struct lu_env *env,
const struct cl_page_slice *slice)
{
- return 1;
+ if (cfs_mutex_is_locked(&cl2echo_page(slice)->ep_lock))
+ return -EBUSY;
+ return -ENODATA;
}
static void echo_page_completion(const struct lu_env *env,
const struct cl_page_slice *slice,
int ioret)
{
- struct echo_page *ecp = cl2echo_page(slice);
- struct cl_sync_io *anchor = ecp->ep_sync_io;
- ENTRY;
-
- LASSERT(anchor != NULL);
- ecp->ep_sync_io = NULL;
- cl_sync_io_note(anchor, ioret);
- EXIT;
+ LASSERT(slice->cpl_page->cp_sync_io != NULL);
}
static void echo_page_fini(const struct lu_env *env,
cfs_page_t *vmpage = ep->ep_vmpage;
ENTRY;
- atomic_dec(&eco->eo_npages);
+ cfs_atomic_dec(&eco->eo_npages);
page_cache_release(vmpage);
OBD_SLAB_FREE_PTR(ep, echo_page_kmem);
EXIT;
static int echo_page_prep(const struct lu_env *env,
const struct cl_page_slice *slice,
- struct cl_io *_)
+ struct cl_io *unused)
{
return 0;
}
{
struct echo_page *ep = cl2echo_page(slice);
- (*printer)(env, cookie, LUSTRE_ECHO_CLIENT_NAME"-page@%p vm@%p\n",
- ep, ep->ep_vmpage);
+ (*printer)(env, cookie, LUSTRE_ECHO_CLIENT_NAME"-page@%p %d vm@%p\n",
+ ep, cfs_mutex_is_locked(&ep->ep_lock), ep->ep_vmpage);
return 0;
}
static const struct cl_page_operations echo_page_ops = {
+ .cpo_own = echo_page_own,
+ .cpo_disown = echo_page_disown,
.cpo_discard = echo_page_discard,
.cpo_vmpage = echo_page_vmpage,
.cpo_fini = echo_page_fini,
};
/** @} echo_page */
-/** \defgroup echo_lock echo_lock
+/** \defgroup echo_lock Locking
*
* echo lock operations
*
{
struct echo_lock *ecl = cl2echo_lock(slice);
- LASSERT(list_empty(&ecl->el_chain));
+ LASSERT(cfs_list_empty(&ecl->el_chain));
OBD_SLAB_FREE_PTR(ecl, echo_lock_kmem);
}
{
struct echo_lock *ecl = cl2echo_lock(slice);
- LASSERT(list_empty(&ecl->el_chain));
+ LASSERT(cfs_list_empty(&ecl->el_chain));
}
static int echo_lock_fits_into(const struct lu_env *env,
const struct cl_lock_slice *slice,
const struct cl_lock_descr *need,
- const struct cl_io *_)
+ const struct cl_io *unused)
{
return 1;
}
/** @} echo_lock */
-/** \defgroup echo_cl_ops echo_cl_ops
+/** \defgroup echo_cl_ops cl_object operations
*
* operations for cl_object
*
struct echo_page *ep;
ENTRY;
- OBD_SLAB_ALLOC_PTR(ep, echo_page_kmem);
+ OBD_SLAB_ALLOC_PTR_GFP(ep, echo_page_kmem, CFS_ALLOC_IO);
if (ep != NULL) {
struct echo_object *eco = cl2echo_obj(obj);
ep->ep_vmpage = vmpage;
page_cache_get(vmpage);
+ cfs_mutex_init(&ep->ep_lock);
cl_page_slice_add(page, &ep->ep_cl, obj, &echo_page_ops);
- atomic_inc(&eco->eo_npages);
+ cfs_atomic_inc(&eco->eo_npages);
}
RETURN(ERR_PTR(ep ? 0 : -ENOMEM));
}
static int echo_lock_init(const struct lu_env *env,
struct cl_object *obj, struct cl_lock *lock,
- const struct cl_io *_)
+ const struct cl_io *unused)
{
struct echo_lock *el;
ENTRY;
- OBD_SLAB_ALLOC_PTR(el, echo_lock_kmem);
+ OBD_SLAB_ALLOC_PTR_GFP(el, echo_lock_kmem, CFS_ALLOC_IO);
if (el != NULL) {
cl_lock_slice_add(lock, &el->el_cl, obj, &echo_lock_ops);
el->el_object = cl2echo_obj(obj);
CFS_INIT_LIST_HEAD(&el->el_chain);
+ cfs_atomic_set(&el->el_refcount, 0);
}
RETURN(el == NULL ? -ENOMEM : 0);
}
};
/** @} echo_cl_ops */
-/** \defgroup echo_lu_ops echo_lu_ops
+/** \defgroup echo_lu_ops lu_object operations
*
* operations for echo lu object.
*
static int echo_object_init(const struct lu_env *env, struct lu_object *obj,
const struct lu_object_conf *conf)
{
- const struct cl_object_conf *cconf = lu2cl_conf(conf);
- struct echo_object_conf *econf = cl2echo_conf(cconf);
struct echo_device *ed = cl2echo_dev(lu2cl_dev(obj->lo_dev));
struct echo_client_obd *ec = ed->ed_ec;
struct echo_object *eco = cl2echo_obj(lu2cl(obj));
lu_object_add(obj, below);
}
- LASSERT(econf->eoc_md);
- eco->eo_lsm = *econf->eoc_md;
- eco->eo_dev = ed;
- atomic_set(&eco->eo_npages, 0);
+ if (!ed->ed_next_ismd) {
+ const struct cl_object_conf *cconf = lu2cl_conf(conf);
+ struct echo_object_conf *econf = cl2echo_conf(cconf);
+
+ LASSERT(econf->eoc_md);
+ eco->eo_lsm = *econf->eoc_md;
+ /* clear the lsm pointer so that it won't get freed. */
+ *econf->eoc_md = NULL;
+ } else {
+ eco->eo_lsm = NULL;
+ }
- /* clear the lsm pointer so that it won't get freed. */
- *econf->eoc_md = NULL;
+ eco->eo_dev = ed;
+ cfs_atomic_set(&eco->eo_npages, 0);
- spin_lock(&ec->ec_lock);
- list_add_tail(&eco->eo_obj_chain, &ec->ec_objects);
- spin_unlock(&ec->ec_lock);
+ cfs_spin_lock(&ec->ec_lock);
+ cfs_list_add_tail(&eco->eo_obj_chain, &ec->ec_objects);
+ cfs_spin_unlock(&ec->ec_lock);
RETURN(0);
}
struct lov_stripe_md *lsm = eco->eo_lsm;
ENTRY;
- LASSERT(atomic_read(&eco->eo_npages) == 0);
+ LASSERT(cfs_atomic_read(&eco->eo_npages) == 0);
- spin_lock(&ec->ec_lock);
- list_del_init(&eco->eo_obj_chain);
- spin_unlock(&ec->ec_lock);
+ cfs_spin_lock(&ec->ec_lock);
+ cfs_list_del_init(&eco->eo_obj_chain);
+ cfs_spin_unlock(&ec->ec_lock);
lu_object_fini(obj);
lu_object_header_fini(obj->lo_header);
return (*p)(env, cookie, "echoclient-object@%p", obj);
}
-
static const struct lu_object_operations echo_lu_obj_ops = {
.loo_object_init = echo_object_init,
.loo_object_delete = NULL,
};
/** @} echo_lu_ops */
-/** \defgroup echo_lu_dev_ops
+/** \defgroup echo_lu_dev_ops lu_device operations
*
* Operations for echo lu device.
*
* @{
*/
static struct lu_object *echo_object_alloc(const struct lu_env *env,
- const struct lu_object_header *hdr,
- struct lu_device *dev)
+ const struct lu_object_header *hdr,
+ struct lu_device *dev)
{
struct echo_object *eco;
struct lu_object *obj = NULL;
/* we're the top dev. */
LASSERT(hdr == NULL);
- OBD_SLAB_ALLOC_PTR(eco, echo_object_kmem);
+ OBD_SLAB_ALLOC_PTR_GFP(eco, echo_object_kmem, CFS_ALLOC_IO);
if (eco != NULL) {
struct cl_object_header *hdr = &eco->eo_hdr;
static struct lu_device_operations echo_device_lu_ops = {
.ldo_object_alloc = echo_object_alloc,
};
+
/** @} echo_lu_dev_ops */
static struct cl_device_operations echo_device_cl_ops = {
};
-/** \defgroup echo_init echo_init
+/** \defgroup echo_init Setup and teardown
*
* Init and fini functions for echo client.
*
static void echo_site_fini(const struct lu_env *env, struct echo_device *ed)
{
if (ed->ed_site) {
- cl_site_fini(ed->ed_site);
+ if (!ed->ed_next_ismd)
+ cl_site_fini(ed->ed_site);
ed->ed_site = NULL;
}
}
{
struct echo_thread_info *info;
- OBD_SLAB_ALLOC_PTR(info, echo_thread_kmem);
+ OBD_SLAB_ALLOC_PTR_GFP(info, echo_thread_kmem, CFS_ALLOC_IO);
if (info == NULL)
info = ERR_PTR(-ENOMEM);
return info;
{
struct echo_session_info *session;
- OBD_SLAB_ALLOC_PTR(session, echo_session_kmem);
+ OBD_SLAB_ALLOC_PTR_GFP(session, echo_session_kmem, CFS_ALLOC_IO);
if (session == NULL)
session = ERR_PTR(-ENOMEM);
return session;
LU_TYPE_INIT_FINI(echo, &echo_thread_key, &echo_session_key);
+#define ECHO_SEQ_WIDTH 0xffffffff
+static int echo_fid_init(struct echo_device *ed, char *obd_name,
+ struct md_site *ms)
+{
+ char *prefix;
+ int rc;
+ ENTRY;
+
+ OBD_ALLOC_PTR(ed->ed_cl_seq);
+ if (ed->ed_cl_seq == NULL)
+ RETURN(-ENOMEM);
+
+ OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
+ if (prefix == NULL)
+ GOTO(out_free_seq, rc = -ENOMEM);
+
+ snprintf(prefix, MAX_OBD_NAME + 5, "srv-%s", obd_name);
+
+ /* Init client side sequence-manager */
+ rc = seq_client_init(ed->ed_cl_seq, NULL,
+ LUSTRE_SEQ_METADATA,
+ prefix, ms->ms_server_seq);
+ ed->ed_cl_seq->lcs_width = ECHO_SEQ_WIDTH;
+ OBD_FREE(prefix, MAX_OBD_NAME + 5);
+ if (rc)
+ GOTO(out_free_seq, rc);
+
+ RETURN(0);
+
+out_free_seq:
+ OBD_FREE_PTR(ed->ed_cl_seq);
+ ed->ed_cl_seq = NULL;
+ RETURN(rc);
+}
+
+static int echo_fid_fini(struct obd_device *obddev)
+{
+ struct echo_device *ed = obd2echo_dev(obddev);
+ ENTRY;
+
+ if (ed->ed_cl_seq != NULL) {
+ seq_client_fini(ed->ed_cl_seq);
+ OBD_FREE_PTR(ed->ed_cl_seq);
+ ed->ed_cl_seq = NULL;
+ }
+
+ RETURN(0);
+}
+
static struct lu_device *echo_device_alloc(const struct lu_env *env,
struct lu_device_type *t,
struct lustre_cfg *cfg)
cd->cd_ops = &echo_device_cl_ops;
cleanup = 2;
- rc = echo_site_init(env, ed);
- if (rc)
+ obd = class_name2obd(lustre_cfg_string(cfg, 0));
+ LASSERT(obd != NULL);
+ LASSERT(env != NULL);
+
+ tgt = class_name2obd(lustre_cfg_string(cfg, 1));
+ if (tgt == NULL) {
+ CERROR("Can not find tgt device %s\n",
+ lustre_cfg_string(cfg, 1));
GOTO(out, rc);
+ }
+ next = tgt->obd_lu_dev;
+ if (!strcmp(tgt->obd_type->typ_name, LUSTRE_MDT_NAME)) {
+ ed->ed_next_ismd = 1;
+ } else {
+ ed->ed_next_ismd = 0;
+ rc = echo_site_init(env, ed);
+ if (rc)
+ GOTO(out, rc);
+ }
cleanup = 3;
- obd = class_name2obd(lustre_cfg_string(cfg, 0));
- LASSERT(obd != NULL);
- rc = echo_client_setup(obd, cfg);
+
+ rc = echo_client_setup(env, obd, cfg);
if (rc)
GOTO(out, rc);
- ed->ed_ec = &obd->u.echo_client;
+ ed->ed_ec = &obd->u.echo_client;
cleanup = 4;
- tgt = class_name2obd(lustre_cfg_string(cfg, 1));
- LASSERT(tgt != NULL);
- next = tgt->obd_lu_dev;
- if (!lu_device_is_cl(next))
- next = NULL;
- /*
- * if echo client is to be stacked upon ost device, the next is NULL
- * since ost is not a clio device so far
- */
- tgt_type_name = tgt->obd_type->typ_name;
- if (next != NULL) {
- LASSERT(next != NULL);
- if (next->ld_site != NULL)
- GOTO(out, rc = -EBUSY);
-
- next->ld_site = &ed->ed_site->cs_lu;
- rc = next->ld_type->ldt_ops->ldto_device_init(env, next,
- next->ld_type->ldt_name, NULL);
- if (rc)
- GOTO(out, rc);
+ if (ed->ed_next_ismd) {
+ /* Suppose to connect to some Metadata layer */
+ struct lu_site *ls;
+ struct lu_device *ld;
+ int found = 0;
- /* Trikcy case, I have to determine the obd type since clio
- * uses the different parameters to initialize objects for
- * lov & osc.
- */
- if (strcmp(tgt_type_name, LUSTRE_LOV_NAME) == 0)
- ed->ed_next_islov = 1;
- else
- LASSERT(strcmp(tgt_type_name, LUSTRE_OSC_NAME) == 0);
- } else
- LASSERT(strcmp(tgt_type_name, LUSTRE_OST_NAME) == 0);
+ if (next == NULL) {
+ CERROR("%s is not lu device type!\n",
+ lustre_cfg_string(cfg, 1));
+ GOTO(out, rc = -EINVAL);
+ }
+
+ tgt_type_name = lustre_cfg_string(cfg, 2);
+ if (!tgt_type_name) {
+ CERROR("%s no type name for echo %s setup\n",
+ lustre_cfg_string(cfg, 1),
+ tgt->obd_type->typ_name);
+ GOTO(out, rc = -EINVAL);
+ }
+
+ ls = next->ld_site;
+
+ cfs_spin_lock(&ls->ls_ld_lock);
+ cfs_list_for_each_entry(ld, &ls->ls_ld_linkage, ld_linkage) {
+ if (strcmp(ld->ld_type->ldt_name, tgt_type_name) == 0) {
+ found = 1;
+ break;
+ }
+ }
+ cfs_spin_unlock(&ls->ls_ld_lock);
+
+ if (found == 0) {
+ CERROR("%s is not lu device type!\n",
+ lustre_cfg_string(cfg, 1));
+ GOTO(out, rc = -EINVAL);
+ }
+
+ next = ld;
+ /* For MD echo client, it will use the site in MDS stack */
+ ed->ed_site_myself.cs_lu = *ls;
+ ed->ed_site = &ed->ed_site_myself;
+ ed->ed_cl.cd_lu_dev.ld_site = &ed->ed_site_myself.cs_lu;
+ rc = echo_fid_init(ed, obd->obd_name, lu_site2md(ls));
+ if (rc) {
+ CERROR("echo fid init error %d\n", rc);
+ GOTO(out, rc);
+ }
+ } else {
+ /* if echo client is to be stacked upon ost device, the next is
+ * NULL since ost is not a clio device so far */
+ if (next != NULL && !lu_device_is_cl(next))
+ next = NULL;
+
+ tgt_type_name = tgt->obd_type->typ_name;
+ if (next != NULL) {
+ LASSERT(next != NULL);
+ if (next->ld_site != NULL)
+ GOTO(out, rc = -EBUSY);
+
+ next->ld_site = &ed->ed_site->cs_lu;
+ rc = next->ld_type->ldt_ops->ldto_device_init(env, next,
+ next->ld_type->ldt_name,
+ NULL);
+ if (rc)
+ GOTO(out, rc);
+
+ /* Tricky case, I have to determine the obd type since
+ * CLIO uses the different parameters to initialize
+ * objects for lov & osc. */
+ if (strcmp(tgt_type_name, LUSTRE_LOV_NAME) == 0)
+ ed->ed_next_islov = 1;
+ else
+ LASSERT(strcmp(tgt_type_name,
+ LUSTRE_OSC_NAME) == 0);
+ } else
+ LASSERT(strcmp(tgt_type_name, LUSTRE_OST_NAME) == 0);
+ }
ed->ed_next = next;
RETURN(&cd->cd_lu_dev);
-
out:
switch(cleanup) {
case 4: {
struct echo_device *ed = cl2echo_dev(lu2cl_dev(d));
struct lu_device *next = ed->ed_next;
- while (next)
+ while (next && !ed->ed_next_ismd)
next = next->ld_type->ldt_ops->ldto_device_fini(env, next);
return NULL;
}
+static void echo_lock_release(const struct lu_env *env,
+ struct echo_lock *ecl,
+ int still_used)
+{
+ struct cl_lock *clk = echo_lock2cl(ecl);
+
+ cl_lock_get(clk);
+ cl_unuse(env, clk);
+ cl_lock_release(env, clk, "ec enqueue", ecl->el_object);
+ if (!still_used) {
+ cl_lock_mutex_get(env, clk);
+ cl_lock_cancel(env, clk);
+ cl_lock_delete(env, clk);
+ cl_lock_mutex_put(env, clk);
+ }
+ cl_lock_put(env, clk);
+}
+
static struct lu_device *echo_device_free(const struct lu_env *env,
struct lu_device *d)
{
struct echo_device *ed = cl2echo_dev(lu2cl_dev(d));
struct echo_client_obd *ec = ed->ed_ec;
+ struct echo_object *eco;
struct lu_device *next = ed->ed_next;
- printk("ed = %p, ec = %p, next = %p\n", ed, ec, next);
-
- /* destroy locks */
- spin_lock(&ec->ec_lock);
- while (!list_empty(&ec->ec_locks)) {
- struct echo_lock *ecl = list_entry(ec->ec_locks.next,
- struct echo_lock, el_chain);
- struct cl_lock *lock = echo_lock2cl(ecl);
+ CDEBUG(D_INFO, "echo device:%p is going to be freed, next = %p\n",
+ ed, next);
- list_del_init(&ecl->el_chain);
- spin_unlock(&ec->ec_lock);
-
- CERROR("echo client: pending lock %p\n", ecl);
-
- cl_lock_get(lock);
- cl_unuse(env, lock);
- cl_lock_release(env, lock, "ec enqueue", ecl->el_object);
-
- cl_lock_mutex_get(env, lock);
- cl_lock_cancel(env, lock);
- cl_lock_delete(env, lock);
- cl_lock_mutex_put(env, lock);
- cl_lock_put(env, lock);
+ lu_site_purge(env, &ed->ed_site->cs_lu, -1);
- spin_lock(&ec->ec_lock);
- }
- spin_unlock(&ec->ec_lock);
+ /* check if there are objects still alive.
+ * It shouldn't have any object because lu_site_purge would cleanup
+ * all of cached objects. Anyway, probably the echo device is being
+ * parallelly accessed.
+ */
+ cfs_spin_lock(&ec->ec_lock);
+ cfs_list_for_each_entry(eco, &ec->ec_objects, eo_obj_chain)
+ eco->eo_deleted = 1;
+ cfs_spin_unlock(&ec->ec_lock);
- LASSERT(ed->ed_site);
+ /* purge again */
lu_site_purge(env, &ed->ed_site->cs_lu, -1);
- /* check if there are objects still alive, assume only one reference */
- spin_lock(&ec->ec_lock);
- while (!list_empty(&ec->ec_objects)) {
- struct echo_object *eco;
- eco = list_entry(ec->ec_objects.next, struct echo_object,
- eo_obj_chain);
- spin_unlock(&ec->ec_lock);
+ CDEBUG(D_INFO,
+ "Waiting for the reference of echo object to be dropped\n");
+
+ /* Wait for the last reference to be dropped. */
+ cfs_spin_lock(&ec->ec_lock);
+ while (!cfs_list_empty(&ec->ec_objects)) {
+ cfs_spin_unlock(&ec->ec_lock);
+ CERROR("echo_client still has objects at cleanup time, "
+ "wait for 1 second\n");
+ cfs_schedule_timeout_and_set_state(CFS_TASK_UNINT,
+ cfs_time_seconds(1));
+ lu_site_purge(env, &ed->ed_site->cs_lu, -1);
+ cfs_spin_lock(&ec->ec_lock);
+ }
+ cfs_spin_unlock(&ec->ec_lock);
- eco->eo_deleted = 1;
- cl_echo_object_put(eco);
+ LASSERT(cfs_list_empty(&ec->ec_locks));
- spin_lock(&ec->ec_lock);
- }
- spin_unlock(&ec->ec_lock);
+ CDEBUG(D_INFO, "No object exists, exiting...\n");
echo_client_cleanup(d->ld_obd);
-
- while (next)
+ echo_fid_fini(d->ld_obd);
+ while (next && !ed->ed_next_ismd)
next = next->ld_type->ldt_ops->ldto_device_free(env, next);
LASSERT(ed->ed_site == lu2cl_site(d->ld_site));
.ldt_tags = LU_DEVICE_CL,
.ldt_name = LUSTRE_ECHO_CLIENT_NAME,
.ldt_ops = &echo_device_type_ops,
- .ldt_ctx_tags = LCT_CL_THREAD
+ .ldt_ctx_tags = LCT_CL_THREAD | LCT_MD_THREAD | LCT_DT_THREAD,
};
/** @} echo_init */
-/** \defgroup echo_exports
+/** \defgroup echo_exports Exported operations
*
* exporting functions to echo client
*
LASSERT(lsm);
LASSERT(lsm->lsm_object_id);
+ /* Never return an object if the obd is to be freed. */
+ if (echo_dev2cl(d)->cd_lu_dev.ld_obd->obd_stopping)
+ RETURN(ERR_PTR(-ENODEV));
+
env = cl_env_get(&refcheck);
if (IS_ERR(env))
RETURN((void *)env);
struct lov_oinfo *oinfo = lsm->lsm_oinfo[0];
LASSERT(oinfo != NULL);
oinfo->loi_id = lsm->lsm_object_id;
- oinfo->loi_gr = lsm->lsm_object_gr;
+ oinfo->loi_seq = lsm->lsm_object_seq;
conf->eoc_cl.u.coc_oinfo = oinfo;
} else {
struct lustre_md *md;
if (eco->eo_deleted) {
struct lu_object_header *loh = obj->co_lu.lo_header;
LASSERT(&eco->eo_hdr == luh2coh(loh));
- set_bit(LU_OBJECT_HEARD_BANSHEE, &loh->loh_flags);
- cl_object_prune(env, obj);
+ cfs_set_bit(LU_OBJECT_HEARD_BANSHEE, &loh->loh_flags);
}
cl_object_put(env, obj);
RETURN(0);
}
-static int cl_echo_enqueue(struct echo_object *eco, obd_off start, obd_off end,
- int mode, __u64 *cookie)
+static int cl_echo_enqueue0(struct lu_env *env, struct echo_object *eco,
+ obd_off start, obd_off end, int mode,
+ __u64 *cookie , __u32 enqflags)
{
- struct lu_env *env;
- struct cl_lock *lck;
- struct echo_thread_info *info;
struct cl_io *io;
+ struct cl_lock *lck;
+ struct cl_object *obj;
struct cl_lock_descr *descr;
- struct cl_object *obj = echo_obj2cl(eco);
- int refcheck;
- int result;
+ struct echo_thread_info *info;
+ int rc = -ENOMEM;
ENTRY;
- env = cl_env_get(&refcheck);
- if (IS_ERR(env))
- RETURN(PTR_ERR(env));
-
info = echo_env_info(env);
+ io = &info->eti_io;
descr = &info->eti_descr;
+ obj = echo_obj2cl(eco);
+
descr->cld_obj = obj;
descr->cld_start = cl_index(obj, start);
descr->cld_end = cl_index(obj, end);
descr->cld_mode = mode == LCK_PW ? CLM_WRITE : CLM_READ;
-
- io = &info->eti_io;
+ descr->cld_enq_flags = enqflags;
io->ci_obj = obj;
- result = cl_io_init(env, io, CIT_MISC, obj);
- if (result < 0)
- GOTO(out, result);
- LASSERT(result == 0);
- result = -ENOMEM;
- lck = cl_lock_request(env, io, descr, CEF_ASYNC, "ec enqueue", eco);
+ lck = cl_lock_request(env, io, descr, "ec enqueue", eco);
if (lck) {
struct echo_client_obd *ec = eco->eo_dev->ed_ec;
struct echo_lock *el;
- result = cl_wait(env, lck);
- if (result == 0) {
+ rc = cl_wait(env, lck);
+ if (rc == 0) {
el = cl2echo_lock(cl_lock_at(lck, &echo_device_type));
- spin_lock(&ec->ec_lock);
- list_add(&el->el_chain, &ec->ec_locks);
- *cookie = el->el_cookie = ++ec->ec_unique;
- spin_unlock(&ec->ec_lock);
+ cfs_spin_lock(&ec->ec_lock);
+ if (cfs_list_empty(&el->el_chain)) {
+ cfs_list_add(&el->el_chain, &ec->ec_locks);
+ el->el_cookie = ++ec->ec_unique;
+ }
+ cfs_atomic_inc(&el->el_refcount);
+ *cookie = el->el_cookie;
+ cfs_spin_unlock(&ec->ec_lock);
} else
cl_lock_release(env, lck, "ec enqueue", cfs_current());
}
+ RETURN(rc);
+}
+
+static int cl_echo_enqueue(struct echo_object *eco, obd_off start, obd_off end,
+ int mode, __u64 *cookie)
+{
+ struct echo_thread_info *info;
+ struct lu_env *env;
+ struct cl_io *io;
+ int refcheck;
+ int result;
+ ENTRY;
+
+ env = cl_env_get(&refcheck);
+ if (IS_ERR(env))
+ RETURN(PTR_ERR(env));
+
+ info = echo_env_info(env);
+ io = &info->eti_io;
+
+ result = cl_io_init(env, io, CIT_MISC, echo_obj2cl(eco));
+ if (result < 0)
+ GOTO(out, result);
+ LASSERT(result == 0);
+
+ result = cl_echo_enqueue0(env, eco, start, end, mode, cookie, 0);
cl_io_fini(env, io);
EXIT;
return result;
}
-static int cl_echo_cancel(struct echo_device *ed, __u64 cookie)
+static int cl_echo_cancel0(struct lu_env *env, struct echo_device *ed,
+ __u64 cookie)
{
struct echo_client_obd *ec = ed->ed_ec;
struct echo_lock *ecl = NULL;
- struct list_head *el;
- int found = 0;
- int result;
-
- struct lu_env *env;
- int refcheck;
+ cfs_list_t *el;
+ int found = 0, still_used = 0;
ENTRY;
- env = cl_env_get(&refcheck);
- if (IS_ERR(env))
- RETURN(PTR_ERR(env));
-
- spin_lock (&ec->ec_lock);
- list_for_each (el, &ec->ec_locks) {
- ecl = list_entry (el, struct echo_lock, el_chain);
- CDEBUG(D_INFO, "ecl: %p, cookie: %llx\n", ecl, ecl->el_cookie);
+ LASSERT(ec != NULL);
+ cfs_spin_lock (&ec->ec_lock);
+ cfs_list_for_each (el, &ec->ec_locks) {
+ ecl = cfs_list_entry (el, struct echo_lock, el_chain);
+ CDEBUG(D_INFO, "ecl: %p, cookie: "LPX64"\n", ecl, ecl->el_cookie);
found = (ecl->el_cookie == cookie);
if (found) {
- list_del_init(&ecl->el_chain);
+ if (cfs_atomic_dec_and_test(&ecl->el_refcount))
+ cfs_list_del_init(&ecl->el_chain);
+ else
+ still_used = 1;
break;
}
}
- spin_unlock (&ec->ec_lock);
+ cfs_spin_unlock (&ec->ec_lock);
+
+ if (!found)
+ RETURN(-ENOENT);
- result = -ENOENT;
- if (found) {
- struct cl_lock *clk = echo_lock2cl(ecl);
+ echo_lock_release(env, ecl, still_used);
+ RETURN(0);
+}
- cl_lock_get(clk);
- cl_unuse(env, clk);
- cl_lock_release(env, clk, "ec enqueue", ecl->el_object);
+static int cl_echo_cancel(struct echo_device *ed, __u64 cookie)
+{
+ struct lu_env *env;
+ int refcheck;
+ int rc;
+ ENTRY;
+
+ env = cl_env_get(&refcheck);
+ if (IS_ERR(env))
+ RETURN(PTR_ERR(env));
+
+ rc = cl_echo_cancel0(env, ed, cookie);
- cl_lock_mutex_get(env, clk);
- cl_lock_cancel(env, clk);
- cl_lock_delete(env, clk);
- cl_lock_mutex_put(env, clk);
- cl_lock_put(env, clk);
- result = 0;
- }
cl_env_put(env, &refcheck);
- RETURN(result);
+ RETURN(rc);
}
static int cl_echo_async_brw(const struct lu_env *env, struct cl_io *io,
- enum cl_req_type _, struct cl_2queue *queue)
+ enum cl_req_type unused, struct cl_2queue *queue)
{
struct cl_page *clp;
struct cl_page *temp;
int result = 0;
ENTRY;
- cl_page_list_splice(&queue->c2_qin, &queue->c2_qout);
- cl_page_list_for_each_safe(clp, temp, &queue->c2_qout) {
+ cl_page_list_for_each_safe(clp, temp, &queue->c2_qin) {
int rc;
rc = cl_page_cache_add(env, io, clp, CRT_WRITE);
if (rc == 0)
continue;
- cl_page_list_move(&queue->c2_qin, &queue->c2_qout, clp);
result = result ?: rc;
}
- RETURN(list_empty(&queue->c2_qout.pl_pages) ? result : 0);
+ RETURN(result);
}
static int cl_echo_object_brw(struct echo_object *eco, int rw, obd_off offset,
struct echo_thread_info *info;
struct cl_object *obj = echo_obj2cl(eco);
struct echo_device *ed = eco->eo_dev;
- struct cl_sync_io *anchor;
struct cl_2queue *queue;
struct cl_io *io;
struct cl_page *clp;
- struct echo_page *ep;
-
+ struct lustre_handle lh = { 0 };
int page_size = cl_page_size(obj);
int refcheck;
int rc;
int i;
ENTRY;
+ LASSERT((offset & ~CFS_PAGE_MASK) == 0);
LASSERT(ed->ed_next != NULL);
env = cl_env_get(&refcheck);
if (IS_ERR(env))
info = echo_env_info(env);
io = &info->eti_io;
- anchor = &info->eti_anchor;
queue = &info->eti_queue;
- cl_sync_io_init(anchor, npages);
cl_2queue_init(queue);
rc = cl_io_init(env, io, CIT_MISC, obj);
if (rc < 0)
GOTO(out, rc);
LASSERT(rc == 0);
+
+ rc = cl_echo_enqueue0(env, eco, offset,
+ offset + npages * CFS_PAGE_SIZE - 1,
+ rw == READ ? LCK_PR : LCK_PW, &lh.cookie,
+ CEF_NEVER);
+ if (rc < 0)
+ GOTO(error_lock, rc);
+
for (i = 0; i < npages; i++) {
LASSERT(pages[i]);
clp = cl_page_find(env, obj, cl_index(obj, offset),
break;
}
- ep = cl2echo_page(cl_page_at(clp, &echo_device_type));
- ep->ep_sync_io = anchor;
cl_2queue_add(queue, clp);
/* drop the reference count for cl_page_find, so that the page
* will be freed in cl_2queue_fini. */
cl_page_put(env, clp);
+ cl_page_clip(env, clp, 0, page_size);
+
offset += page_size;
}
enum cl_req_type typ = rw == READ ? CRT_READ : CRT_WRITE;
async = async && (typ == CRT_WRITE);
- rc = (async ? cl_echo_async_brw : cl_io_submit_rw)(env, io,
- typ, queue);
+ if (async)
+ rc = cl_echo_async_brw(env, io, typ, queue);
+ else
+ rc = cl_io_submit_sync(env, io, typ, queue,
+ CRP_NORMAL, 0);
CDEBUG(D_INFO, "echo_client %s write returns %d\n",
async ? "async" : "sync", rc);
- if (rc == 0) {
- /*
- * If some pages weren't sent for any reason (e.g.,
- * direct-io read found up-to-date pages in the
- * cache), count them as completed to avoid infinite
- * wait.
- */
- cl_page_list_for_each(clp, &queue->c2_qin)
- cl_sync_io_note(anchor, +1);
- /* wait for the IO to be finished. */
- rc = cl_sync_io_wait(env, io, &queue->c2_qout, anchor);
- }
}
+ cl_echo_cancel0(env, ed, lh.cookie);
+ EXIT;
+error_lock:
cl_2queue_discard(env, io, queue);
cl_2queue_disown(env, io, queue);
cl_2queue_fini(env, queue);
cl_io_fini(env, io);
-
- EXIT;
out:
cl_env_put(env, &refcheck);
return rc;
if (nob > ulsm_nob)
return (-EINVAL);
- if (copy_to_user (ulsm, lsm, sizeof(ulsm)))
+ if (cfs_copy_to_user (ulsm, lsm, sizeof(ulsm)))
return (-EFAULT);
for (i = 0; i < lsm->lsm_stripe_count; i++) {
- if (copy_to_user (ulsm->lsm_oinfo[i], lsm->lsm_oinfo[i],
- sizeof(lsm->lsm_oinfo[0])))
+ if (cfs_copy_to_user (ulsm->lsm_oinfo[i], lsm->lsm_oinfo[i],
+ sizeof(lsm->lsm_oinfo[0])))
return (-EFAULT);
}
return 0;
if (ulsm_nob < sizeof (*lsm))
return (-EINVAL);
- if (copy_from_user (lsm, ulsm, sizeof (*lsm)))
+ if (cfs_copy_from_user (lsm, ulsm, sizeof (*lsm)))
return (-EFAULT);
if (lsm->lsm_stripe_count > ec->ec_nstripes ||
for (i = 0; i < lsm->lsm_stripe_count; i++) {
- if (copy_from_user(lsm->lsm_oinfo[i],
- ((struct lov_stripe_md *)ulsm)->lsm_oinfo[i],
- sizeof(lsm->lsm_oinfo[0])))
+ if (cfs_copy_from_user(lsm->lsm_oinfo[i],
+ ((struct lov_stripe_md *)ulsm)-> \
+ lsm_oinfo[i],
+ sizeof(lsm->lsm_oinfo[0])))
return (-EFAULT);
}
return (0);
}
+static inline void echo_md_build_name(struct lu_name *lname, char *name,
+ __u64 id)
+{
+ sprintf(name, "%llu", id);
+ lname->ln_name = name;
+ lname->ln_namelen = strlen(name);
+}
+
+static int echo_md_create_internal(const struct lu_env *env,
+ struct echo_device *ed,
+ struct md_object *parent,
+ struct lu_fid *fid,
+ struct lu_name *lname,
+ struct md_op_spec *spec,
+ struct md_attr *ma)
+{
+ struct lu_object *ec_child, *child;
+ struct lu_device *ld = ed->ed_next;
+ int rc;
+
+ ec_child = lu_object_find_at(env, &ed->ed_cl.cd_lu_dev,
+ fid, NULL);
+ if (IS_ERR(ec_child)) {
+ CERROR("Can not find the child "DFID": rc = %ld\n", PFID(fid),
+ PTR_ERR(ec_child));
+ return PTR_ERR(ec_child);
+ }
+
+ child = lu_object_locate(ec_child->lo_header, ld->ld_type);
+ if (child == NULL) {
+ CERROR("Can not locate the child "DFID"\n", PFID(fid));
+ GOTO(out_put, rc = -EINVAL);
+ }
+
+ CDEBUG(D_RPCTRACE, "Start creating object "DFID" %s %p\n",
+ PFID(lu_object_fid(&parent->mo_lu)), lname->ln_name, parent);
+
+ rc = mdo_create(env, parent, lname, lu2md(child), spec, ma);
+ if (rc) {
+ CERROR("Can not create child "DFID": rc = %d\n", PFID(fid), rc);
+ GOTO(out_put, rc);
+ }
+ CDEBUG(D_RPCTRACE, "End creating object "DFID" %s %p rc = %d\n",
+ PFID(lu_object_fid(&parent->mo_lu)), lname->ln_name, parent, rc);
+out_put:
+ lu_object_put(env, ec_child);
+ return rc;
+}
+
+static int echo_set_lmm_size(const struct lu_env *env,
+ struct lu_device *ld,
+ struct md_attr *ma,
+ int *max_lmm_size)
+{
+ struct echo_thread_info *info = echo_env_info(env);
+ struct md_device *md = lu2md_dev(ld);
+ int tmp, rc;
+ ENTRY;
+
+ LASSERT(max_lmm_size != NULL);
+ if (strcmp(ld->ld_type->ldt_name, LUSTRE_MDD_NAME)) {
+ ma->ma_lmm = (void *)&info->eti_lmm;
+ ma->ma_lmm_size = sizeof(info->eti_lmm);
+ *max_lmm_size = 0;
+ RETURN(0);
+ }
+
+ md = lu2md_dev(ld);
+ rc = md->md_ops->mdo_maxsize_get(env, md,
+ max_lmm_size, &tmp);
+ if (rc)
+ RETURN(rc);
+
+ if (*max_lmm_size == 0)
+ /* In case xattr is set in echo_setattr_object */
+ *max_lmm_size = sizeof(struct lov_user_md_v3);
+
+ ma->ma_lmm_size = *max_lmm_size;
+ OBD_ALLOC(ma->ma_lmm, ma->ma_lmm_size);
+ if (ma->ma_lmm == NULL)
+ RETURN(-ENOMEM);
+
+ RETURN(0);
+}
+
+static int echo_create_md_object(const struct lu_env *env,
+ struct echo_device *ed,
+ struct lu_object *ec_parent,
+ struct lu_fid *fid,
+ char *name, int namelen,
+ __u64 id, __u32 mode, int count,
+ int stripe_count, int stripe_offset)
+{
+ struct lu_object *parent;
+ struct echo_thread_info *info = echo_env_info(env);
+ struct lu_name *lname = &info->eti_lname;
+ struct md_op_spec *spec = &info->eti_spec;
+ struct md_attr *ma = &info->eti_ma;
+ struct lu_device *ld = ed->ed_next;
+ int rc = 0;
+ int max_lmm_size = 0;
+ int i;
+
+ parent = lu_object_locate(ec_parent->lo_header, ld->ld_type);
+ if (ec_parent == NULL) {
+ lu_object_put(env, ec_parent);
+ RETURN(PTR_ERR(parent));
+ }
+
+ memset(ma, 0, sizeof(*ma));
+ memset(spec, 0, sizeof(*spec));
+ if (stripe_count != 0) {
+ spec->sp_cr_flags |= FMODE_WRITE;
+ rc = echo_set_lmm_size(env, ld, ma, &max_lmm_size);
+ if (rc)
+ GOTO(out_free, rc);
+ if (stripe_count != -1) {
+ struct lov_user_md_v3 *lum = &info->eti_lum;
+ lum->lmm_magic = LOV_USER_MAGIC_V3;
+ lum->lmm_stripe_count = stripe_count;
+ lum->lmm_stripe_offset = stripe_offset;
+ lum->lmm_pattern = 0;
+ spec->u.sp_ea.eadata = lum;
+ spec->sp_cr_flags |= MDS_OPEN_HAS_EA;
+ }
+ }
+
+ ma->ma_attr.la_mode = mode;
+ ma->ma_attr.la_valid = LA_CTIME;
+ ma->ma_attr.la_ctime = cfs_time_current_64();
+
+ if (name != NULL) {
+ lname->ln_name = name;
+ lname->ln_namelen = namelen;
+ /* If name is specified, only create one object by name */
+ rc = echo_md_create_internal(env, ed, lu2md(parent), fid, lname,
+ spec, ma);
+ GOTO(out_free, rc);
+ }
+
+ /* Create multiple object sequenced by id */
+ for (i = 0; i < count; i++) {
+ char *tmp_name = info->eti_name;
+
+ echo_md_build_name(lname, tmp_name, id);
+
+ rc = echo_md_create_internal(env, ed, lu2md(parent), fid, lname,
+ spec, ma);
+ if (rc) {
+ CERROR("Can not create child %s: rc = %d\n", tmp_name,
+ rc);
+ break;
+ }
+ id++;
+ fid->f_oid++;
+ }
+
+out_free:
+ if (!strcmp(ld->ld_type->ldt_name, LUSTRE_MDD_NAME) &&
+ max_lmm_size > 0 && ma->ma_lmm != NULL)
+ OBD_FREE(ma->ma_lmm, max_lmm_size);
+
+ return rc;
+}
+
+static struct lu_object *echo_md_lookup(const struct lu_env *env,
+ struct echo_device *ed,
+ struct md_object *parent,
+ struct lu_name *lname)
+{
+ struct echo_thread_info *info = echo_env_info(env);
+ struct lu_fid *fid = &info->eti_fid;
+ struct lu_object *child;
+ int rc;
+ ENTRY;
+
+ CDEBUG(D_INFO, "lookup %s in parent "DFID" %p\n", lname->ln_name,
+ PFID(fid), parent);
+ rc = mdo_lookup(env, parent, lname, fid, NULL);
+ if (rc) {
+ CERROR("lookup %s: rc = %d\n", lname->ln_name, rc);
+ RETURN(ERR_PTR(rc));
+ }
+
+ child = lu_object_find_at(env, &ed->ed_cl.cd_lu_dev, fid, NULL);
+
+ RETURN(child);
+}
+
+static int echo_setattr_object(const struct lu_env *env,
+ struct echo_device *ed,
+ struct lu_object *ec_parent,
+ __u64 id, int count)
+{
+ struct lu_object *parent;
+ struct echo_thread_info *info = echo_env_info(env);
+ struct lu_name *lname = &info->eti_lname;
+ char *name = info->eti_name;
+ struct md_attr *ma = &info->eti_ma;
+ struct lu_device *ld = ed->ed_next;
+ struct lov_user_md_v3 *lum = &info->eti_lum;
+ int rc = 0;
+ int i;
+
+ parent = lu_object_locate(ec_parent->lo_header, ld->ld_type);
+ if (ec_parent == NULL) {
+ lu_object_put(env, ec_parent);
+ return PTR_ERR(parent);
+ }
+
+ memset(ma, 0, sizeof(*ma));
+ lum->lmm_magic = LOV_USER_MAGIC_V3;
+ lum->lmm_stripe_count = 1;
+ lum->lmm_stripe_offset = -1;
+ lum->lmm_pattern = 0;
+
+ ma->ma_lmm = (struct lov_mds_md *)lum;
+ ma->ma_lmm_size = sizeof(*lum);
+ ma->ma_valid = MA_LOV | MA_HSM;
+ for (i = 0; i < count; i++) {
+ struct lu_object *ec_child, *child;
+
+ echo_md_build_name(lname, name, id);
+
+ ec_child = echo_md_lookup(env, ed, lu2md(parent), lname);
+ if (IS_ERR(ec_child)) {
+ CERROR("Can't find child %s: rc = %ld\n",
+ lname->ln_name, PTR_ERR(ec_child));
+ RETURN(PTR_ERR(ec_child));
+ }
+
+ child = lu_object_locate(ec_child->lo_header, ld->ld_type);
+ if (child == NULL) {
+ CERROR("Can not locate the child %s\n", lname->ln_name);
+ lu_object_put(env, ec_child);
+ rc = -EINVAL;
+ break;
+ }
+
+ CDEBUG(D_RPCTRACE, "Start getattr object "DFID"\n",
+ PFID(lu_object_fid(child)));
+ rc = mo_attr_set(env, lu2md(child), ma);
+ if (rc) {
+ CERROR("Can not getattr child "DFID": rc = %d\n",
+ PFID(lu_object_fid(child)), rc);
+ lu_object_put(env, ec_child);
+ break;
+ }
+ CDEBUG(D_RPCTRACE, "End getattr object "DFID"\n",
+ PFID(lu_object_fid(child)));
+ id++;
+ lu_object_put(env, ec_child);
+ }
+ return rc;
+}
+
+static int echo_getattr_object(const struct lu_env *env,
+ struct echo_device *ed,
+ struct lu_object *ec_parent,
+ __u64 id, int count)
+{
+ struct lu_object *parent;
+ struct echo_thread_info *info = echo_env_info(env);
+ struct lu_name *lname = &info->eti_lname;
+ char *name = info->eti_name;
+ struct md_attr *ma = &info->eti_ma;
+ struct lu_device *ld = ed->ed_next;
+ int max_lmm_size;
+ int rc = 0;
+ int i;
+
+ parent = lu_object_locate(ec_parent->lo_header, ld->ld_type);
+ if (ec_parent == NULL) {
+ lu_object_put(env, ec_parent);
+ return PTR_ERR(parent);
+ }
+
+ memset(ma, 0, sizeof(*ma));
+ rc = echo_set_lmm_size(env, ld, ma, &max_lmm_size);
+ if (rc)
+ GOTO(out_free, rc);
+
+ ma->ma_need |= MA_INODE | MA_LOV | MA_PFID | MA_HSM | MA_ACL_DEF;
+ ma->ma_acl = info->eti_xattr_buf;
+ ma->ma_acl_size = sizeof(info->eti_xattr_buf);
+
+ for (i = 0; i < count; i++) {
+ struct lu_object *ec_child, *child;
+
+ echo_md_build_name(lname, name, id);
+
+ ec_child = echo_md_lookup(env, ed, lu2md(parent), lname);
+ if (IS_ERR(ec_child)) {
+ CERROR("Can't find child %s: rc = %ld\n",
+ lname->ln_name, PTR_ERR(ec_child));
+ RETURN(PTR_ERR(ec_child));
+ }
+
+ child = lu_object_locate(ec_child->lo_header, ld->ld_type);
+ if (child == NULL) {
+ CERROR("Can not locate the child %s\n", lname->ln_name);
+ lu_object_put(env, ec_child);
+ GOTO(out_free, rc = -EINVAL);
+ }
+
+ CDEBUG(D_RPCTRACE, "Start getattr object "DFID"\n",
+ PFID(lu_object_fid(child)));
+ rc = mo_attr_get(env, lu2md(child), ma);
+ if (rc) {
+ CERROR("Can not getattr child "DFID": rc = %d\n",
+ PFID(lu_object_fid(child)), rc);
+ lu_object_put(env, ec_child);
+ break;
+ }
+ CDEBUG(D_RPCTRACE, "End getattr object "DFID"\n",
+ PFID(lu_object_fid(child)));
+ id++;
+ lu_object_put(env, ec_child);
+ }
+
+out_free:
+ if (!strcmp(ld->ld_type->ldt_name, LUSTRE_MDD_NAME) &&
+ max_lmm_size > 0 && ma->ma_lmm)
+ OBD_FREE(ma->ma_lmm, max_lmm_size);
+
+ return rc;
+}
+
+static int echo_lookup_object(const struct lu_env *env,
+ struct echo_device *ed,
+ struct lu_object *ec_parent,
+ __u64 id, int count)
+{
+ struct lu_object *parent;
+ struct echo_thread_info *info = echo_env_info(env);
+ struct lu_name *lname = &info->eti_lname;
+ char *name = info->eti_name;
+ struct lu_fid *fid = &info->eti_fid;
+ struct lu_device *ld = ed->ed_next;
+ int rc = 0;
+ int i;
+
+ parent = lu_object_locate(ec_parent->lo_header, ld->ld_type);
+ if (ec_parent == NULL) {
+ lu_object_put(env, ec_parent);
+ return PTR_ERR(parent);
+ }
+
+ /*prepare the requests*/
+ for (i = 0; i < count; i++) {
+ echo_md_build_name(lname, name, id);
+
+ CDEBUG(D_RPCTRACE, "Start lookup object "DFID" %s %p\n",
+ PFID(lu_object_fid(parent)), lname->ln_name, parent);
+ rc = mdo_lookup(env, lu2md(parent), lname, fid, NULL);
+ if (rc) {
+ CERROR("Can not lookup child %s: rc = %d\n", name, rc);
+ break;
+ }
+ CDEBUG(D_RPCTRACE, "End lookup object "DFID" %s %p\n",
+ PFID(lu_object_fid(parent)), lname->ln_name, parent);
+
+ id++;
+ }
+ return rc;
+}
+
+static int echo_md_destroy_internal(const struct lu_env *env,
+ struct echo_device *ed,
+ struct md_object *parent,
+ struct lu_name *lname,
+ struct md_attr *ma)
+{
+ struct lu_device *ld = ed->ed_next;
+ struct lu_object *ec_child;
+ struct lu_object *child;
+ int rc;
+
+ ec_child = echo_md_lookup(env, ed, parent, lname);
+ if (IS_ERR(ec_child)) {
+ CERROR("Can't find child %s: rc = %ld\n", lname->ln_name,
+ PTR_ERR(ec_child));
+ RETURN(PTR_ERR(ec_child));
+ }
+
+ child = lu_object_locate(ec_child->lo_header, ld->ld_type);
+ if (child == NULL) {
+ CERROR("Can not locate the child %s\n", lname->ln_name);
+ GOTO(out_put, rc = -EINVAL);
+ }
+
+ CDEBUG(D_RPCTRACE, "Start destroy object "DFID" %s %p\n",
+ PFID(lu_object_fid(&parent->mo_lu)), lname->ln_name, parent);
+
+ rc = mdo_unlink(env, parent, lu2md(child), lname, ma);
+ if (rc) {
+ CERROR("Can not unlink child %s: rc = %d\n",
+ lname->ln_name, rc);
+ GOTO(out_put, rc);
+ }
+ CDEBUG(D_RPCTRACE, "End destroy object "DFID" %s %p\n",
+ PFID(lu_object_fid(&parent->mo_lu)), lname->ln_name, parent);
+out_put:
+ lu_object_put(env, ec_child);
+ return rc;
+}
+
+static int echo_destroy_object(const struct lu_env *env,
+ struct echo_device *ed,
+ struct lu_object *ec_parent,
+ char *name, int namelen,
+ __u64 id, __u32 mode,
+ int count)
+{
+ struct echo_thread_info *info = echo_env_info(env);
+ struct lu_name *lname = &info->eti_lname;
+ struct md_attr *ma = &info->eti_ma;
+ struct lu_device *ld = ed->ed_next;
+ struct lu_object *parent;
+ int rc = 0;
+ int max_lmm_size = 0;
+ int i;
+ ENTRY;
+
+ parent = lu_object_locate(ec_parent->lo_header, ld->ld_type);
+ if (parent == NULL)
+ RETURN(-EINVAL);
+
+ memset(ma, 0, sizeof(*ma));
+ ma->ma_attr.la_mode = mode;
+ ma->ma_attr.la_valid = LA_CTIME;
+ ma->ma_attr.la_ctime = cfs_time_current_64();
+ ma->ma_need = MA_INODE;
+ ma->ma_valid = 0;
+
+ rc = echo_set_lmm_size(env, ld, ma, &max_lmm_size);
+ if (rc)
+ GOTO(out_free, rc);
+
+ /*FIXME: Do not need logcookie for now, and check stripes*/
+ ma->ma_cookie = NULL;
+ ma->ma_cookie_size = 0;
+ ma->ma_need = MA_INODE | MA_LOV;
+ ma->ma_valid = 0;
+
+ if (name != NULL) {
+ lname->ln_name = name;
+ lname->ln_namelen = namelen;
+ rc = echo_md_destroy_internal(env, ed, lu2md(parent), lname,
+ ma);
+ GOTO(out_free, rc);
+ }
+
+ /*prepare the requests*/
+ for (i = 0; i < count; i++) {
+ char *tmp_name = info->eti_name;
+
+ echo_md_build_name(lname, tmp_name, id);
+
+ rc = echo_md_destroy_internal(env, ed, lu2md(parent), lname,
+ ma);
+ if (rc) {
+ CERROR("Can not unlink child %s: rc = %d\n", name, rc);
+ break;
+ }
+ id++;
+ }
+
+out_free:
+ if (!strcmp(ld->ld_type->ldt_name, LUSTRE_MDD_NAME) &&
+ max_lmm_size > 0 && ma->ma_lmm)
+ OBD_FREE(ma->ma_lmm, max_lmm_size);
+
+ RETURN(rc);
+}
+
+struct lu_object *echo_resolve_path(const struct lu_env *env,
+ struct echo_device *ed, char *path,
+ int path_len)
+{
+ struct lu_device *ld = ed->ed_next;
+ struct md_device *md = lu2md_dev(ld);
+ struct echo_thread_info *info = echo_env_info(env);
+ struct lu_fid *fid = &info->eti_fid;
+ struct lu_name *lname = &info->eti_lname;
+ struct lu_object *parent = NULL;
+ struct lu_object *child = NULL;
+ int rc = 0;
+ ENTRY;
+
+ /*Only support MDD layer right now*/
+ LASSERT(!strcmp(ld->ld_type->ldt_name, LUSTRE_MDD_NAME));
+
+ rc = md->md_ops->mdo_root_get(env, md, fid);
+ if (rc) {
+ CERROR("get root error: rc = %d\n", rc);
+ RETURN(ERR_PTR(rc));
+ }
+
+ parent = lu_object_find_at(env, &ed->ed_cl.cd_lu_dev, fid, NULL);
+ if (IS_ERR(parent)) {
+ CERROR("Can not find the parent "DFID": rc = %ld\n",
+ PFID(fid), PTR_ERR(parent));
+ RETURN(parent);
+ }
+
+ while (1) {
+ struct lu_object *ld_parent;
+ char *e;
+
+ e = strsep(&path, "/");
+ if (e == NULL)
+ break;
+
+ if (e[0] == 0) {
+ if (!path || path[0] == '\0')
+ break;
+ continue;
+ }
+
+ lname->ln_name = e;
+ lname->ln_namelen = strlen(e);
+
+ ld_parent = lu_object_locate(parent->lo_header, ld->ld_type);
+ if (ld_parent == NULL) {
+ lu_object_put(env, parent);
+ rc = -EINVAL;
+ break;
+ }
+
+ child = echo_md_lookup(env, ed, lu2md(ld_parent), lname);
+ lu_object_put(env, parent);
+ if (IS_ERR(child)) {
+ rc = (int)PTR_ERR(child);
+ CERROR("lookup %s under parent "DFID": rc = %d\n",
+ lname->ln_name, PFID(lu_object_fid(ld_parent)),
+ rc);
+ break;
+ }
+ parent = child;
+ }
+ if (rc)
+ RETURN(ERR_PTR(rc));
+
+ RETURN(parent);
+}
+
+#define ECHO_MD_CTX_TAG (LCT_REMEMBER | LCT_NOREF | LCT_MD_THREAD)
+#define ECHO_MD_SES_TAG (LCT_SESSION | LCT_REMEMBER | LCT_NOREF)
+
+static int echo_md_handler(struct echo_device *ed, int command,
+ char *path, int path_len, int id, int count,
+ struct obd_ioctl_data *data)
+{
+ struct lu_device *ld = ed->ed_next;
+ struct lu_env *env;
+ int refcheck;
+ struct lu_object *parent;
+ char *name = NULL;
+ int namelen = data->ioc_plen2;
+ int rc = 0;
+ ENTRY;
+
+ if (ld == NULL) {
+ CERROR("MD echo client is not being initialized properly\n");
+ RETURN(-EINVAL);
+ }
+
+ if (strcmp(ld->ld_type->ldt_name, LUSTRE_MDD_NAME)) {
+ CERROR("Only support MDD layer right now!\n");
+ RETURN(-EINVAL);
+ }
+
+ env = cl_env_get(&refcheck);
+ if (IS_ERR(env))
+ RETURN(PTR_ERR(env));
+
+ rc = lu_env_refill_by_tags(env, ECHO_MD_CTX_TAG, ECHO_MD_SES_TAG);
+ if (rc != 0) {
+ cl_env_put(env, &refcheck);
+ RETURN(rc);
+ }
+
+ parent = echo_resolve_path(env, ed, path, path_len);
+ if (IS_ERR(parent)) {
+ CERROR("Can not resolve the path %s: rc = %ld\n", path,
+ PTR_ERR(parent));
+ cl_env_put(env, &refcheck);
+ RETURN(PTR_ERR(parent));
+ }
+
+ if (namelen > 0) {
+ OBD_ALLOC(name, namelen + 1);
+ if (name == NULL)
+ RETURN(-ENOMEM);
+ if (cfs_copy_from_user(name, data->ioc_pbuf2, namelen)) {
+ OBD_FREE(name, namelen + 1);
+ RETURN(-EFAULT);
+ }
+ }
+
+ switch (command) {
+ case ECHO_MD_CREATE:
+ case ECHO_MD_MKDIR: {
+ struct echo_thread_info *info = echo_env_info(env);
+ __u32 mode = data->ioc_obdo2.o_mode;
+ struct lu_fid *fid = &info->eti_fid;
+ int stripe_count = (int)data->ioc_obdo2.o_misc;
+ int stripe_index = (int)data->ioc_obdo2.o_stripe_idx;
+
+ fid->f_seq = data->ioc_obdo1.o_seq;
+ fid->f_oid = (__u32)data->ioc_obdo1.o_id;
+ fid->f_ver = 0;
+ rc = echo_create_md_object(env, ed, parent, fid, name, namelen,
+ id, mode, count, stripe_count,
+ stripe_index);
+ break;
+ }
+ case ECHO_MD_DESTROY:
+ case ECHO_MD_RMDIR: {
+ __u32 mode = data->ioc_obdo2.o_mode;
+
+ rc = echo_destroy_object(env, ed, parent, name, namelen,
+ id, mode, count);
+ break;
+ }
+ case ECHO_MD_LOOKUP:
+ rc = echo_lookup_object(env, ed, parent, id, count);
+ break;
+ case ECHO_MD_GETATTR:
+ rc = echo_getattr_object(env, ed, parent, id, count);
+ break;
+ case ECHO_MD_SETATTR:
+ rc = echo_setattr_object(env, ed, parent, id, count);
+ break;
+ default:
+ CERROR("unknown command %d\n", command);
+ rc = -EINVAL;
+ break;
+ }
+ if (name != NULL)
+ OBD_FREE(name, namelen + 1);
+ lu_object_put(env, parent);
+ cl_env_put(env, &refcheck);
+ return rc;
+}
+
static int echo_create_object(struct echo_device *ed, int on_target,
struct obdo *oa, void *ulsm, int ulsm_nob,
struct obd_trans_info *oti)
rc = obd_alloc_memmd(ec->ec_exp, &lsm);
if (rc < 0) {
- CERROR("Cannot allocate md, rc = %d\n", rc);
+ CERROR("Cannot allocate md: rc = %d\n", rc);
GOTO(failed, rc);
}
if (lsm->lsm_stripe_size == 0)
lsm->lsm_stripe_size = CFS_PAGE_SIZE;
- idx = ll_rand();
+ idx = cfs_rand();
/* setup stripes: indices + default ids if required */
for (i = 0; i < lsm->lsm_stripe_count; i++) {
rc = 0;
if (on_target) {
- oa->o_gr = FILTER_GROUP_ECHO;
- oa->o_valid |= OBD_MD_FLGROUP;
-
+ /* Only echo objects are allowed to be created */
+ LASSERT((oa->o_valid & OBD_MD_FLGROUP) &&
+ (oa->o_seq == FID_SEQ_ECHO));
rc = obd_create(ec->ec_exp, oa, &lsm, oti);
if (rc != 0) {
- CERROR("Cannot create objects, rc = %d\n", rc);
+ CERROR("Cannot create objects: rc = %d\n", rc);
GOTO(failed, rc);
}
created = 1;
if (lsm)
obd_free_memmd(ec->ec_exp, &lsm);
if (rc)
- CERROR("create object failed with rc = %d\n", rc);
+ CERROR("create object failed with: rc = %d\n", rc);
return (rc);
}
lsm->lsm_object_id = oa->o_id;
if (oa->o_valid & OBD_MD_FLGROUP)
- lsm->lsm_object_gr = oa->o_gr;
+ lsm->lsm_object_seq = oa->o_seq;
else
- lsm->lsm_object_gr = FILTER_GROUP_ECHO;
+ lsm->lsm_object_seq = FID_SEQ_ECHO;
rc = 0;
eco = cl_echo_object_find(ed, &lsm);
int rc;
int verify;
int gfp_mask;
+ int brw_flags = 0;
ENTRY;
verify = ((oa->o_id) != ECHO_PERSISTENT_OBJID &&
/* XXX think again with misaligned I/O */
npages = count >> CFS_PAGE_SHIFT;
+ if (rw == OBD_BRW_WRITE)
+ brw_flags = OBD_BRW_ASYNC;
+
OBD_ALLOC(pga, npages * sizeof(*pga));
if (pga == NULL)
RETURN(-ENOMEM);
pages[i] = pgp->pg;
pgp->count = CFS_PAGE_SIZE;
pgp->off = off;
- pgp->flag = 0;
+ pgp->flag = brw_flags;
if (verify)
echo_client_page_debug_setup(lsm, pgp->pg, rw,
ret = obd_commitrw(rw, exp, oa, 1,&ioo,rnb,npages,lnb,oti,ret);
if (ret != 0)
GOTO(out, ret);
+
+ /* Reset oti otherwise it would confuse ldiskfs. */
+ memset(oti, 0, sizeof(*oti));
}
out:
struct obd_device *obd = class_exp2obd(exp);
struct echo_device *ed = obd2echo_dev(obd);
struct echo_client_obd *ec = ed->ed_ec;
- struct obd_trans_info dummy_oti = { .oti_thread = NULL };
+ struct obd_trans_info dummy_oti = { 0 };
+ struct obdo *oa = &data->ioc_obdo1;
struct echo_object *eco;
int rc;
int async = 1;
ENTRY;
- rc = echo_get_object(&eco, ed, &data->ioc_obdo1);
+ LASSERT(oa->o_valid & OBD_MD_FLGROUP);
+
+ rc = echo_get_object(&eco, ed, oa);
if (rc)
RETURN(rc);
- data->ioc_obdo1.o_valid &= ~OBD_MD_FLHANDLE;
- data->ioc_obdo1.o_valid |= OBD_MD_FLGROUP;
- data->ioc_obdo1.o_gr = FILTER_GROUP_ECHO;
+ oa->o_valid &= ~OBD_MD_FLHANDLE;
switch((long)data->ioc_pbuf1) {
case 1:
async = 0;
/* fall through */
case 2:
- rc = echo_client_kbrw(ed, rw, &data->ioc_obdo1,
+ rc = echo_client_kbrw(ed, rw, oa,
eco, data->ioc_offset,
data->ioc_count, async, &dummy_oti);
break;
case 3:
- rc = echo_client_prep_commit(ec->ec_exp, rw, &data->ioc_obdo1,
+ rc = echo_client_prep_commit(ec->ec_exp, rw, oa,
eco, data->ioc_offset,
data->ioc_count, data->ioc_plen1,
&dummy_oti);
rc = cl_echo_enqueue(eco, offset, end, mode, &ulh->cookie);
if (rc == 0) {
oa->o_valid |= OBD_MD_FLHANDLE;
- CDEBUG(D_INFO, "Cookie is %llx\n", ulh->cookie);
+ CDEBUG(D_INFO, "Cookie is "LPX64"\n", ulh->cookie);
}
echo_put_object(eco);
RETURN(rc);
if ((oa->o_valid & OBD_MD_FLHANDLE) == 0)
return -EINVAL;
- CDEBUG(D_INFO, "Cookie is %llx\n", cookie);
+ CDEBUG(D_INFO, "Cookie is "LPX64"\n", cookie);
return cl_echo_cancel(ed, cookie);
}
struct obd_trans_info dummy_oti;
struct oti_req_ack_lock *ack_lock;
struct obdo *oa;
+ struct lu_fid fid;
int rw = OBD_BRW_READ;
int rc = 0;
int i;
ENTRY;
- unlock_kernel();
+#ifndef HAVE_UNLOCKED_IOCTL
+ cfs_unlock_kernel();
+#endif
memset(&dummy_oti, 0, sizeof(dummy_oti));
+ oa = &data->ioc_obdo1;
+ if (!(oa->o_valid & OBD_MD_FLGROUP)) {
+ oa->o_valid |= OBD_MD_FLGROUP;
+ oa->o_seq = FID_SEQ_ECHO;
+ }
+
+ /* This FID is unpacked just for validation at this point */
+ rc = fid_ostid_unpack(&fid, &oa->o_oi, 0);
+ if (rc < 0)
+ RETURN(rc);
+
switch (cmd) {
case OBD_IOC_CREATE: /* may create echo object */
if (!cfs_capable(CFS_CAP_SYS_ADMIN))
GOTO (out, rc = -EPERM);
- rc = echo_create_object (ed, 1, &data->ioc_obdo1,
+ rc = echo_create_object (ed, 1, oa,
data->ioc_pbuf1, data->ioc_plen1,
&dummy_oti);
GOTO(out, rc);
+ case OBD_IOC_ECHO_MD: {
+ int count;
+ int cmd;
+ char *dir = NULL;
+ int dirlen;
+ __u64 id;
+
+ if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+ GOTO(out, rc = -EPERM);
+
+ count = data->ioc_count;
+ cmd = data->ioc_command;
+
+ id = data->ioc_obdo2.o_id;
+
+ dirlen = data->ioc_plen1;
+ OBD_ALLOC(dir, dirlen + 1);
+ if (dir == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ if (cfs_copy_from_user(dir, data->ioc_pbuf1, dirlen)) {
+ OBD_FREE(dir, data->ioc_plen1 + 1);
+ GOTO(out, rc = -EFAULT);
+ }
+
+ rc = echo_md_handler(ed, cmd, dir, dirlen, id, count, data);
+ OBD_FREE(dir, dirlen + 1);
+ GOTO(out, rc);
+ }
+ case OBD_IOC_ECHO_ALLOC_SEQ: {
+ struct lu_env *env;
+ int refcheck;
+ __u64 seq;
+ int max_count;
+
+ if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+ GOTO(out, rc = -EPERM);
+
+ env = cl_env_get(&refcheck);
+ if (IS_ERR(env))
+ GOTO(out, rc = PTR_ERR(env));
+
+ rc = lu_env_refill_by_tags(env, ECHO_MD_CTX_TAG,
+ ECHO_MD_SES_TAG);
+ if (rc != 0) {
+ cl_env_put(env, &refcheck);
+ GOTO(out, rc);
+ }
+
+ rc = seq_client_get_seq(env, ed->ed_cl_seq, &seq);
+ cl_env_put(env, &refcheck);
+ if (rc < 0) {
+ CERROR("%s: Can not alloc seq: rc = %d\n",
+ obd->obd_name, rc);
+ GOTO(out, rc);
+ }
+
+ if (cfs_copy_to_user(data->ioc_pbuf1, &seq, data->ioc_plen1))
+ return -EFAULT;
+
+ max_count = LUSTRE_SEQ_MAX_WIDTH;
+ if (cfs_copy_to_user(data->ioc_pbuf2, &max_count,
+ data->ioc_plen2))
+ return -EFAULT;
+ GOTO(out, rc);
+ }
case OBD_IOC_DESTROY:
if (!cfs_capable(CFS_CAP_SYS_ADMIN))
GOTO (out, rc = -EPERM);
- rc = echo_get_object (&eco, ed, &data->ioc_obdo1);
+ rc = echo_get_object (&eco, ed, oa);
if (rc == 0) {
- oa = &data->ioc_obdo1;
- oa->o_gr = FILTER_GROUP_ECHO;
- oa->o_valid |= OBD_MD_FLGROUP;
rc = obd_destroy(ec->ec_exp, oa, eco->eo_lsm,
&dummy_oti, NULL, NULL);
if (rc == 0)
GOTO(out, rc);
case OBD_IOC_GETATTR:
- rc = echo_get_object (&eco, ed, &data->ioc_obdo1);
+ rc = echo_get_object (&eco, ed, oa);
if (rc == 0) {
struct obd_info oinfo = { { { 0 } } };
oinfo.oi_md = eco->eo_lsm;
- oinfo.oi_oa = &data->ioc_obdo1;
+ oinfo.oi_oa = oa;
rc = obd_getattr(ec->ec_exp, &oinfo);
echo_put_object(eco);
}
if (!cfs_capable(CFS_CAP_SYS_ADMIN))
GOTO (out, rc = -EPERM);
- rc = echo_get_object (&eco, ed, &data->ioc_obdo1);
+ rc = echo_get_object (&eco, ed, oa);
if (rc == 0) {
struct obd_info oinfo = { { { 0 } } };
- oinfo.oi_oa = &data->ioc_obdo1;
+ oinfo.oi_oa = oa;
oinfo.oi_md = eco->eo_lsm;
rc = obd_setattr(ec->ec_exp, &oinfo, NULL);
GOTO(out, rc);
case ECHO_IOC_GET_STRIPE:
- rc = echo_get_object(&eco, ed, &data->ioc_obdo1);
+ rc = echo_get_object(&eco, ed, oa);
if (rc == 0) {
rc = echo_copyout_lsm(eco->eo_lsm, data->ioc_pbuf1,
data->ioc_plen1);
GOTO (out, rc = -EPERM);
if (data->ioc_pbuf1 == NULL) { /* unset */
- rc = echo_get_object(&eco, ed, &data->ioc_obdo1);
+ rc = echo_get_object(&eco, ed, oa);
if (rc == 0) {
eco->eo_deleted = 1;
echo_put_object(eco);
}
} else {
- rc = echo_create_object(ed, 0, &data->ioc_obdo1,
+ rc = echo_create_object(ed, 0, oa,
data->ioc_pbuf1,
data->ioc_plen1, &dummy_oti);
}
if (!cfs_capable(CFS_CAP_SYS_ADMIN))
GOTO (out, rc = -EPERM);
- rc = echo_client_enqueue(exp, &data->ioc_obdo1,
+ rc = echo_client_enqueue(exp, oa,
data->ioc_conn1, /* lock mode */
data->ioc_offset,
data->ioc_count);/*extent*/
GOTO (out, rc);
case ECHO_IOC_CANCEL:
- rc = echo_client_cancel(exp, &data->ioc_obdo1);
+ rc = echo_client_cancel(exp, oa);
GOTO (out, rc);
default:
ldlm_lock_decref(&ack_lock->lock, ack_lock->mode);
}
- lock_kernel();
+#ifndef HAVE_UNLOCKED_IOCTL
+ cfs_lock_kernel();
+#endif
return rc;
}
-static int echo_client_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
+static int echo_client_setup(const struct lu_env *env,
+ struct obd_device *obddev, struct lustre_cfg *lcfg)
{
struct echo_client_obd *ec = &obddev->u.echo_client;
struct obd_device *tgt;
- struct lustre_handle conn = {0, };
struct obd_uuid echo_uuid = { "ECHO_UUID" };
struct obd_connect_data *ocd = NULL;
int rc;
RETURN(-EINVAL);
}
- spin_lock_init (&ec->ec_lock);
+ cfs_spin_lock_init (&ec->ec_lock);
CFS_INIT_LIST_HEAD (&ec->ec_objects);
CFS_INIT_LIST_HEAD (&ec->ec_locks);
ec->ec_unique = 0;
ec->ec_nstripes = 0;
+ if (!strcmp(tgt->obd_type->typ_name, LUSTRE_MDT_NAME)) {
+ lu_context_tags_update(ECHO_MD_CTX_TAG);
+ lu_session_tags_update(ECHO_MD_SES_TAG);
+ RETURN(0);
+ }
+
OBD_ALLOC(ocd, sizeof(*ocd));
if (ocd == NULL) {
CERROR("Can't alloc ocd connecting to %s\n",
}
ocd->ocd_connect_flags = OBD_CONNECT_VERSION | OBD_CONNECT_REQPORTAL |
- OBD_CONNECT_GRANT;
+ OBD_CONNECT_GRANT | OBD_CONNECT_FULL20 |
+ OBD_CONNECT_64BITHASH;
ocd->ocd_version = LUSTRE_VERSION_CODE;
- ocd->ocd_group = FILTER_GROUP_ECHO;
+ ocd->ocd_group = FID_SEQ_ECHO;
- rc = obd_connect(NULL, &conn, tgt, &echo_uuid, ocd, NULL);
+ rc = obd_connect(env, &ec->ec_exp, tgt, &echo_uuid, ocd, NULL);
+ if (rc == 0) {
+ /* Turn off pinger because it connects to tgt obd directly. */
+ cfs_spin_lock(&tgt->obd_dev_lock);
+ cfs_list_del_init(&ec->ec_exp->exp_obd_chain_timed);
+ cfs_spin_unlock(&tgt->obd_dev_lock);
+ }
OBD_FREE(ocd, sizeof(*ocd));
lustre_cfg_string(lcfg, 1));
return (rc);
}
- ec->ec_exp = class_conn2export(&conn);
RETURN(rc);
}
static int echo_client_cleanup(struct obd_device *obddev)
{
+ struct echo_device *ed = obd2echo_dev(obddev);
struct echo_client_obd *ec = &obddev->u.echo_client;
int rc;
ENTRY;
- if (!list_empty(&obddev->obd_exports)) {
+ /*Do nothing for Metadata echo client*/
+ if (ed == NULL )
+ RETURN(0);
+
+ if (ed->ed_next_ismd) {
+ lu_context_tags_clear(ECHO_MD_CTX_TAG);
+ lu_session_tags_clear(ECHO_MD_SES_TAG);
+ RETURN(0);
+ }
+
+ if (!cfs_list_empty(&obddev->obd_exports)) {
CERROR("still has clients!\n");
RETURN(-EBUSY);
}
+ LASSERT(cfs_atomic_read(&ec->ec_exp->exp_refcount) > 0);
rc = obd_disconnect(ec->ec_exp);
if (rc != 0)
CERROR("fail to disconnect device: %d\n", rc);
}
static int echo_client_connect(const struct lu_env *env,
- struct lustre_handle *conn,
+ struct obd_export **exp,
struct obd_device *src, struct obd_uuid *cluuid,
struct obd_connect_data *data, void *localdata)
{
- struct obd_export *exp;
int rc;
+ struct lustre_handle conn = { 0 };
ENTRY;
- rc = class_connect(conn, src, cluuid);
+ rc = class_connect(&conn, src, cluuid);
if (rc == 0) {
- exp = class_conn2export(conn);
- class_export_put(exp);
+ *exp = class_conn2export(&conn);
}
RETURN (rc);
ec = &obd->u.echo_client;
/* no more contention on export's lock list */
- while (!list_empty (&exp->exp_ec_data.eced_locks)) {
- ecl = list_entry (exp->exp_ec_data.eced_locks.next,
- struct ec_lock, ecl_exp_chain);
- list_del (&ecl->ecl_exp_chain);
+ while (!cfs_list_empty (&exp->exp_ec_data.eced_locks)) {
+ ecl = cfs_list_entry (exp->exp_ec_data.eced_locks.next,
+ struct ec_lock, ecl_exp_chain);
+ cfs_list_del (&ecl->ecl_exp_chain);
rc = obd_cancel(ec->ec_exp, ecl->ecl_object->eco_lsm,
ecl->ecl_mode, &ecl->ecl_lock_handle);
int rc;
lprocfs_echo_init_vars(&lvars);
- rc = class_register_type(&echo_obd_ops, NULL, lvars.module_vars,
- LUSTRE_ECHO_CLIENT_NAME, &echo_device_type);
- if (rc == 0)
- lu_kmem_init(echo_caches);
+
+ rc = lu_kmem_init(echo_caches);
+ if (rc == 0) {
+ rc = class_register_type(&echo_obd_ops, NULL,
+ lvars.module_vars,
+ LUSTRE_ECHO_CLIENT_NAME,
+ &echo_device_type);
+ if (rc)
+ lu_kmem_fini(echo_caches);
+ }
return rc;
}
lu_kmem_fini(echo_caches);
}
+/** @} echo_client */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff