* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2014, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_LOV
#include <libcfs/libcfs.h>
-#include <obd_support.h>
-#include <lustre_ioctl.h>
-#include <lustre_lib.h>
-#include <lustre_net.h>
#include <lustre/lustre_idl.h>
+
+#include <cl_object.h>
#include <lustre_dlm.h>
+#include <lustre_fid.h>
+#include <lustre_ioctl.h>
+#include <lustre_lib.h>
#include <lustre_mds.h>
-#include <obd_class.h>
-#include <lprocfs_status.h>
+#include <lustre_net.h>
#include <lustre_param.h>
-#include <cl_object.h>
-#include <lustre_fid.h>
+#include <lustre_swab.h>
+#include <lprocfs_status.h>
+#include <obd_class.h>
+#include <obd_support.h>
#include "lov_internal.h"
return rc;
}
-static int lov_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
-{
- int rc = 0;
- struct lov_obd *lov = &obd->u.lov;
-
- ENTRY;
-
- switch (stage) {
- case OBD_CLEANUP_EARLY: {
- int i;
- for (i = 0; i < lov->desc.ld_tgt_count; i++) {
- if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active)
- continue;
- obd_precleanup(class_exp2obd(lov->lov_tgts[i]->ltd_exp),
- OBD_CLEANUP_EARLY);
- }
- break;
- }
- default:
- break;
- }
-
- RETURN(rc);
-}
-
static int lov_cleanup(struct obd_device *obd)
{
struct lov_obd *lov = &obd->u.lov;
RETURN(rc);
}
-#define ASSERT_LSM_MAGIC(lsmp) \
-do { \
- LASSERT((lsmp) != NULL); \
- LASSERTF(((lsmp)->lsm_magic == LOV_MAGIC_V1 || \
- (lsmp)->lsm_magic == LOV_MAGIC_V3), \
- "%p->lsm_magic=%x\n", (lsmp), (lsmp)->lsm_magic); \
-} while (0)
-
-int lov_getattr_interpret(struct ptlrpc_request_set *rqset, void *data, int rc)
-{
- struct lov_request_set *lovset = (struct lov_request_set *)data;
- int err;
- ENTRY;
-
- /* don't do attribute merge if this aysnc op failed */
- if (rc)
- atomic_set(&lovset->set_completes, 0);
- err = lov_fini_getattr_set(lovset);
- RETURN(rc ? rc : err);
-}
-
int lov_statfs_interpret(struct ptlrpc_request_set *rqset, void *data, int rc)
{
struct lov_request_set *lovset = (struct lov_request_set *)data;
}
static int lov_statfs(const struct lu_env *env, struct obd_export *exp,
- struct obd_statfs *osfs, __u64 max_age, __u32 flags)
+ struct obd_statfs *osfs, __u64 max_age, __u32 flags)
{
- struct ptlrpc_request_set *set = NULL;
- struct obd_info oinfo = { { { 0 } } };
- int rc = 0;
- ENTRY;
+ struct ptlrpc_request_set *set = NULL;
+ struct obd_info oinfo = {
+ .oi_osfs = osfs,
+ .oi_flags = flags,
+ };
+ int rc = 0;
+ ENTRY;
- /* for obdclass we forbid using obd_statfs_rqset, but prefer using async
- * statfs requests */
- set = ptlrpc_prep_set();
- if (set == NULL)
- RETURN(-ENOMEM);
+ /* for obdclass we forbid using obd_statfs_rqset, but prefer using async
+ * statfs requests */
+ set = ptlrpc_prep_set();
+ if (set == NULL)
+ RETURN(-ENOMEM);
- oinfo.oi_osfs = osfs;
- oinfo.oi_flags = flags;
- rc = lov_statfs_async(exp, &oinfo, max_age, set);
- if (rc == 0)
- rc = ptlrpc_set_wait(set);
- ptlrpc_set_destroy(set);
+ rc = lov_statfs_async(exp, &oinfo, max_age, set);
+ if (rc == 0)
+ rc = ptlrpc_set_wait(set);
- RETURN(rc);
+ ptlrpc_set_destroy(set);
+
+ RETURN(rc);
}
static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
__u32 index;
__u32 flags;
- memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
+ memcpy(&index, data->ioc_inlbuf2, sizeof(index));
if ((index >= count))
RETURN(-ENODEV);
/* copy UUID */
if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(osc_obd),
- min((int)data->ioc_plen2,
- (int)sizeof(struct obd_uuid))))
- RETURN(-EFAULT);
+ min_t(unsigned long, data->ioc_plen2,
+ sizeof(struct obd_uuid))))
+ RETURN(-EFAULT);
+
+ memcpy(&flags, data->ioc_inlbuf1, sizeof(flags));
+ flags = flags & LL_STATFS_NODELAY ? OBD_STATFS_NODELAY : 0;
- flags = uarg ? *(__u32 __user *)uarg : 0;
/* got statfs data */
rc = obd_statfs(NULL, lov->lov_tgts[index]->ltd_exp, &stat_buf,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
if (rc)
RETURN(rc);
if (copy_to_user(data->ioc_pbuf1, &stat_buf,
- min((int) data->ioc_plen1,
- (int) sizeof(stat_buf))))
- RETURN(-EFAULT);
- break;
+ min_t(unsigned long, data->ioc_plen1,
+ sizeof(struct obd_statfs))))
+ RETURN(-EFAULT);
+ break;
}
case OBD_IOC_LOV_GET_CONFIG: {
struct obd_ioctl_data *data;
{
struct obd_device *obddev = class_exp2obd(exp);
struct lov_obd *lov = &obddev->u.lov;
- int rc;
- ENTRY;
+ struct lov_desc *ld = &lov->desc;
+ int rc = 0;
+ ENTRY;
- if (!vallen || !val)
- RETURN(-EFAULT);
+ if (vallen == NULL || val == NULL)
+ RETURN(-EFAULT);
- obd_getref(obddev);
+ obd_getref(obddev);
- if (KEY_IS(KEY_LOVDESC)) {
- struct lov_desc *desc_ret = val;
- *desc_ret = lov->desc;
+ if (KEY_IS(KEY_MAX_EASIZE)) {
+ u32 max_stripe_count = min_t(u32, ld->ld_active_tgt_count,
+ LOV_MAX_STRIPE_COUNT);
- GOTO(out, rc = 0);
- } else if (KEY_IS(KEY_TGT_COUNT)) {
- *((int *)val) = lov->desc.ld_tgt_count;
- GOTO(out, rc = 0);
- }
+ *((u32 *)val) = lov_mds_md_size(max_stripe_count, LOV_MAGIC_V3);
+ } else if (KEY_IS(KEY_DEFAULT_EASIZE)) {
+ u32 def_stripe_count = min_t(u32, ld->ld_default_stripe_count,
+ LOV_MAX_STRIPE_COUNT);
- rc = -EINVAL;
+ *((u32 *)val) = lov_mds_md_size(def_stripe_count, LOV_MAGIC_V3);
+ } else if (KEY_IS(KEY_TGT_COUNT)) {
+ *((int *)val) = lov->desc.ld_tgt_count;
+ } else {
+ rc = -EINVAL;
+ }
-out:
- obd_putref(obddev);
- RETURN(rc);
+ obd_putref(obddev);
+
+ RETURN(rc);
}
static int lov_set_info_async(const struct lu_env *env, struct obd_export *exp,
static struct obd_ops lov_obd_ops = {
.o_owner = THIS_MODULE,
.o_setup = lov_setup,
- .o_precleanup = lov_precleanup,
.o_cleanup = lov_cleanup,
.o_connect = lov_connect,
.o_disconnect = lov_disconnect,
.o_statfs = lov_statfs,
.o_statfs_async = lov_statfs_async,
- .o_packmd = lov_packmd,
- .o_unpackmd = lov_unpackmd,
.o_iocontrol = lov_iocontrol,
.o_get_info = lov_get_info,
.o_set_info_async = lov_set_info_async,
RETURN(rc);
}
-static void /*__exit*/ lov_exit(void)
+static void __exit lov_exit(void)
{
class_unregister_type(LUSTRE_LOV_NAME);
kmem_cache_destroy(lov_oinfo_slab);
lu_kmem_fini(lov_caches);
}
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Logical Object Volume OBD driver");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Lustre Logical Object Volume");
MODULE_VERSION(LUSTRE_VERSION_STRING);
MODULE_LICENSE("GPL");