-/* -*- 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.
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Author: Wang Di <wangdi@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_LOV
#ifdef __KERNEL__
#include <obd_class.h>
#include <obd_lov.h>
#include <lustre/lustre_idl.h>
-#include <lustre_log.h>
#include "lov_internal.h"
};
static int lsm_lmm_verify_common(struct lov_mds_md *lmm, int lmm_bytes,
- int stripe_count)
+ __u16 stripe_count)
{
if (stripe_count == 0 || stripe_count > LOV_V1_INSANE_STRIPE_COUNT) {
return -EINVAL;
}
- if (lmm->lmm_object_id == 0) {
- CERROR("zero object id\n");
- lov_dump_lmm(D_WARNING, lmm);
- return -EINVAL;
- }
+ if (lmm_oi_id(&lmm->lmm_oi) == 0) {
+ CERROR("zero object id\n");
+ lov_dump_lmm(D_WARNING, lmm);
+ return -EINVAL;
+ }
if (lmm->lmm_pattern != cpu_to_le32(LOV_PATTERN_RAID0)) {
CERROR("bad striping pattern\n");
return 0;
}
-struct lov_stripe_md *lsm_alloc_plain(int stripe_count, int *size)
+struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size)
{
struct lov_stripe_md *lsm;
- int i, oinfo_ptrs_size;
- struct lov_oinfo *loi;
+ struct lov_oinfo *loi;
+ int i, oinfo_ptrs_size;
- LASSERT(stripe_count > 0);
+ LASSERT(stripe_count <= LOV_MAX_STRIPE_COUNT);
oinfo_ptrs_size = sizeof(struct lov_oinfo *) * stripe_count;
*size = sizeof(struct lov_stripe_md) + oinfo_ptrs_size;
lsm->lsm_oinfo[i] = loi;
}
lsm->lsm_stripe_count = stripe_count;
- lsm->lsm_pool_name[0] = '\0';
return lsm;
err:
void lsm_free_plain(struct lov_stripe_md *lsm)
{
- int stripe_count = lsm->lsm_stripe_count;
+ __u16 stripe_count = lsm->lsm_stripe_count;
int i;
for (i = 0; i < stripe_count; i++)
static void lsm_unpackmd_common(struct lov_stripe_md *lsm,
struct lov_mds_md *lmm)
{
- /*
- * This supposes lov_mds_md_v1/v3 first fields are
- * are the same
- */
- lsm->lsm_object_id = le64_to_cpu(lmm->lmm_object_id);
- lsm->lsm_object_seq = le64_to_cpu(lmm->lmm_object_seq);
- lsm->lsm_stripe_size = le32_to_cpu(lmm->lmm_stripe_size);
- lsm->lsm_pattern = le32_to_cpu(lmm->lmm_pattern);
- lsm->lsm_pool_name[0] = '\0';
+ /*
+ * This supposes lov_mds_md_v1/v3 first fields are
+ * are the same
+ */
+ lmm_oi_le_to_cpu(&lsm->lsm_oi, &lmm->lmm_oi);
+ lsm->lsm_stripe_size = le32_to_cpu(lmm->lmm_stripe_size);
+ lsm->lsm_pattern = le32_to_cpu(lmm->lmm_pattern);
+ lsm->lsm_layout_gen = le16_to_cpu(lmm->lmm_layout_gen);
+ lsm->lsm_pool_name[0] = '\0';
}
static void
return 0;
}
+/* Find minimum stripe maxbytes value. For inactive or
+ * reconnecting targets use LUSTRE_STRIPE_MAXBYTES. */
+static void lov_tgt_maxbytes(struct lov_tgt_desc *tgt, __u64 *stripe_maxbytes)
+{
+ struct obd_import *imp = tgt->ltd_obd->u.cli.cl_import;
+
+ if (imp == NULL || !tgt->ltd_active) {
+ *stripe_maxbytes = LUSTRE_STRIPE_MAXBYTES;
+ return;
+ }
+
+ spin_lock(&imp->imp_lock);
+ if (imp->imp_state == LUSTRE_IMP_FULL &&
+ (imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_MAXBYTES) &&
+ imp->imp_connect_data.ocd_maxbytes > 0) {
+ if (*stripe_maxbytes > imp->imp_connect_data.ocd_maxbytes)
+ *stripe_maxbytes = imp->imp_connect_data.ocd_maxbytes;
+ } else {
+ *stripe_maxbytes = LUSTRE_STRIPE_MAXBYTES;
+ }
+ spin_unlock(&imp->imp_lock);
+}
+
static int lsm_lmm_verify_v1(struct lov_mds_md_v1 *lmm, int lmm_bytes,
- int *stripe_count)
+ __u16 *stripe_count)
{
if (lmm_bytes < sizeof(*lmm)) {
CERROR("lov_mds_md_v1 too small: %d, need at least %d\n",
return -EINVAL;
}
- *stripe_count = le32_to_cpu(lmm->lmm_stripe_count);
+ *stripe_count = le16_to_cpu(lmm->lmm_stripe_count);
if (lmm_bytes < lov_mds_md_size(*stripe_count, LOV_MAGIC_V1)) {
CERROR("LOV EA V1 too small: %d, need %d\n",
{
struct lov_oinfo *loi;
int i;
+ __u64 stripe_maxbytes = OBD_OBJECT_EOF;
lsm_unpackmd_common(lsm, lmm);
- for (i = 0; i < lsm->lsm_stripe_count; i++) {
- /* XXX LOV STACKING call down to osc_unpackmd() */
- loi = lsm->lsm_oinfo[i];
- loi->loi_id = le64_to_cpu(lmm->lmm_objects[i].l_object_id);
- loi->loi_seq = le64_to_cpu(lmm->lmm_objects[i].l_object_seq);
- loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
- loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
- if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) {
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
+ /* XXX LOV STACKING call down to osc_unpackmd() */
+ loi = lsm->lsm_oinfo[i];
+ ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi);
+ loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
+ loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
+ if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) {
CERROR("OST index %d more than OST count %d\n",
loi->loi_ost_idx, lov->desc.ld_tgt_count);
lov_dump_lmm_v1(D_WARNING, lmm);
lov_dump_lmm_v1(D_WARNING, lmm);
return -EINVAL;
}
+ /* calculate the minimum stripe max bytes */
+ lov_tgt_maxbytes(lov->lov_tgts[loi->loi_ost_idx],
+ &stripe_maxbytes);
}
+ lsm->lsm_maxbytes = stripe_maxbytes * lsm->lsm_stripe_count;
+
return 0;
}
};
static int lsm_lmm_verify_v3(struct lov_mds_md *lmmv1, int lmm_bytes,
- int *stripe_count)
+ __u16 *stripe_count)
{
struct lov_mds_md_v3 *lmm;
return -EINVAL;
}
- *stripe_count = le32_to_cpu(lmm->lmm_stripe_count);
+ *stripe_count = le16_to_cpu(lmm->lmm_stripe_count);
if (lmm_bytes < lov_mds_md_size(*stripe_count, LOV_MAGIC_V3)) {
CERROR("LOV EA V3 too small: %d, need %d\n",
struct lov_mds_md_v3 *lmm;
struct lov_oinfo *loi;
int i;
+ __u64 stripe_maxbytes = OBD_OBJECT_EOF;
+ int cplen = 0;
lmm = (struct lov_mds_md_v3 *)lmmv1;
lsm_unpackmd_common(lsm, (struct lov_mds_md_v1 *)lmm);
- strncpy(lsm->lsm_pool_name, lmm->lmm_pool_name, LOV_MAXPOOLNAME);
+ cplen = strlcpy(lsm->lsm_pool_name, lmm->lmm_pool_name,
+ sizeof(lsm->lsm_pool_name));
+ if (cplen >= sizeof(lsm->lsm_pool_name))
+ return -E2BIG;
for (i = 0; i < lsm->lsm_stripe_count; i++) {
/* XXX LOV STACKING call down to osc_unpackmd() */
loi = lsm->lsm_oinfo[i];
- loi->loi_id = le64_to_cpu(lmm->lmm_objects[i].l_object_id);
- loi->loi_seq = le64_to_cpu(lmm->lmm_objects[i].l_object_seq);
+ ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi);
loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) {
lov_dump_lmm_v3(D_WARNING, lmm);
return -EINVAL;
}
+ /* calculate the minimum stripe max bytes */
+ lov_tgt_maxbytes(lov->lov_tgts[loi->loi_ost_idx],
+ &stripe_maxbytes);
}
+ lsm->lsm_maxbytes = stripe_maxbytes * lsm->lsm_stripe_count;
+
return 0;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff