* Copyright (c) 2007, 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/
return 0;
}
-struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size)
+struct lov_stripe_md *lsm_alloc_plain(u16 stripe_count)
{
struct lov_stripe_md *lsm;
struct lov_oinfo *loi;
- int i, oinfo_ptrs_size;
+ size_t lsm_size;
+ size_t oinfo_ptrs_size;
+ int i;
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_size = sizeof(*lsm) + oinfo_ptrs_size;
- OBD_ALLOC_LARGE(lsm, *size);
+ OBD_ALLOC_LARGE(lsm, lsm_size);
if (!lsm)
return NULL;
err:
while (--i >= 0)
OBD_SLAB_FREE(lsm->lsm_oinfo[i], lov_oinfo_slab, sizeof(*loi));
- OBD_FREE_LARGE(lsm, *size);
+
+ OBD_FREE_LARGE(lsm, lsm_size);
+
return NULL;
}
void lsm_free_plain(struct lov_stripe_md *lsm)
{
- __u16 stripe_count = lsm->lsm_stripe_count;
- int i;
-
- for (i = 0; i < stripe_count; i++)
- OBD_SLAB_FREE(lsm->lsm_oinfo[i], lov_oinfo_slab,
- sizeof(struct lov_oinfo));
- OBD_FREE_LARGE(lsm, sizeof(struct lov_stripe_md) +
- stripe_count * sizeof(struct lov_oinfo *));
+ __u16 stripe_count = lsm->lsm_stripe_count;
+ int i;
+
+ for (i = 0; i < stripe_count; i++)
+ OBD_SLAB_FREE(lsm->lsm_oinfo[i], lov_oinfo_slab,
+ sizeof(struct lov_oinfo));
+ OBD_FREE_LARGE(lsm, sizeof(struct lov_stripe_md) +
+ stripe_count * sizeof(struct lov_oinfo *));
+}
+
+/* Find minimum stripe maxbytes value. For inactive or
+ * reconnecting targets use LUSTRE_EXT3_STRIPE_MAXBYTES. */
+static loff_t lov_tgt_maxbytes(struct lov_tgt_desc *tgt)
+{
+ struct obd_import *imp;
+ loff_t maxbytes = LUSTRE_EXT3_STRIPE_MAXBYTES;
+
+ if (!tgt->ltd_active)
+ return maxbytes;
+
+ imp = tgt->ltd_obd->u.cli.cl_import;
+ if (imp == NULL)
+ return maxbytes;
+
+ 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)
+ maxbytes = imp->imp_connect_data.ocd_maxbytes;
+
+ spin_unlock(&imp->imp_lock);
+
+ return maxbytes;
}
-static void lsm_unpackmd_common(struct lov_stripe_md *lsm,
- struct lov_mds_md *lmm)
+static int lsm_unpackmd_common(struct lov_obd *lov,
+ struct lov_stripe_md *lsm,
+ struct lov_mds_md *lmm,
+ struct lov_ost_data_v1 *objects)
{
+ struct lov_oinfo *loi;
+ loff_t min_stripe_maxbytes = 0;
+ loff_t lov_bytes;
+ unsigned int stripe_count;
+ unsigned int i;
+
/*
* This supposes lov_mds_md_v1/v3 first fields are
* are the same
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';
+
+ stripe_count = lsm_is_released(lsm) ? 0 : lsm->lsm_stripe_count;
+
+ for (i = 0; i < stripe_count; i++) {
+ loi = lsm->lsm_oinfo[i];
+ ostid_le_to_cpu(&objects[i].l_ost_oi, &loi->loi_oi);
+ loi->loi_ost_idx = le32_to_cpu(objects[i].l_ost_idx);
+ loi->loi_ost_gen = le32_to_cpu(objects[i].l_ost_gen);
+ if (lov_oinfo_is_dummy(loi))
+ continue;
+
+ if (loi->loi_ost_idx >= lov->desc.ld_tgt_count &&
+ !lov2obd(lov)->obd_process_conf) {
+ CERROR("%s: OST index %d more than OST count %d\n",
+ (char*)lov->desc.ld_uuid.uuid,
+ loi->loi_ost_idx, lov->desc.ld_tgt_count);
+ lov_dump_lmm_v1(D_WARNING, lmm);
+ return -EINVAL;
+ }
+
+ if (lov->lov_tgts[loi->loi_ost_idx] == NULL) {
+ CERROR("%s: OST index %d missing\n",
+ (char*)lov->desc.ld_uuid.uuid, loi->loi_ost_idx);
+ lov_dump_lmm_v1(D_WARNING, lmm);
+ continue;
+ }
+
+ lov_bytes = lov_tgt_maxbytes(lov->lov_tgts[loi->loi_ost_idx]);
+ if (min_stripe_maxbytes == 0 || lov_bytes < min_stripe_maxbytes)
+ min_stripe_maxbytes = lov_bytes;
+ }
+
+ if (min_stripe_maxbytes == 0)
+ min_stripe_maxbytes = LUSTRE_EXT3_STRIPE_MAXBYTES;
+
+ stripe_count = lsm->lsm_stripe_count ?: lov->desc.ld_tgt_count;
+ lov_bytes = min_stripe_maxbytes * stripe_count;
+
+ if (lov_bytes < min_stripe_maxbytes) /* handle overflow */
+ lsm->lsm_maxbytes = MAX_LFS_FILESIZE;
+ else
+ lsm->lsm_maxbytes = lov_bytes;
+
+ return 0;
}
static void
*swidth = (loff_t)lsm->lsm_stripe_size * lsm->lsm_stripe_count;
}
-/* Find minimum stripe maxbytes value. For inactive or
- * reconnecting targets use LUSTRE_EXT3_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_EXT3_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_EXT3_STRIPE_MAXBYTES;
- }
- spin_unlock(&imp->imp_lock);
-}
-
static int lsm_lmm_verify_v1(struct lov_mds_md_v1 *lmm, int lmm_bytes,
__u16 *stripe_count)
{
static int lsm_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm,
struct lov_mds_md_v1 *lmm)
{
- struct lov_oinfo *loi;
- int i;
- int stripe_count;
- __u64 stripe_maxbytes = OBD_OBJECT_EOF;
-
- lsm_unpackmd_common(lsm, lmm);
-
- stripe_count = lsm_is_released(lsm) ? 0 : lsm->lsm_stripe_count;
-
- for (i = 0; i < 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 (lov_oinfo_is_dummy(loi))
- continue;
-
- 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);
- return -EINVAL;
- }
- if (!lov->lov_tgts[loi->loi_ost_idx]) {
- CERROR("OST index %d missing\n", loi->loi_ost_idx);
- 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;
- if (lsm->lsm_stripe_count == 0)
- lsm->lsm_maxbytes = stripe_maxbytes * lov->desc.ld_tgt_count;
-
- return 0;
+ return lsm_unpackmd_common(lov, lsm, lmm, lmm->lmm_objects);
}
const struct lsm_operations lsm_v1_ops = {
}
static int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm,
- struct lov_mds_md *lmmv1)
+ struct lov_mds_md *lmm)
{
- struct lov_mds_md_v3 *lmm;
- struct lov_oinfo *loi;
- int i;
- int stripe_count;
- __u64 stripe_maxbytes = OBD_OBJECT_EOF;
- int cplen = 0;
+ struct lov_mds_md_v3 *lmm_v3 = (struct lov_mds_md_v3 *)lmm;
+ size_t cplen;
+ int rc;
- lmm = (struct lov_mds_md_v3 *)lmmv1;
+ rc = lsm_unpackmd_common(lov, lsm, lmm, lmm_v3->lmm_objects);
+ if (rc != 0)
+ return rc;
- lsm_unpackmd_common(lsm, (struct lov_mds_md_v1 *)lmm);
-
- stripe_count = lsm_is_released(lsm) ? 0 : lsm->lsm_stripe_count;
-
- cplen = strlcpy(lsm->lsm_pool_name, lmm->lmm_pool_name,
+ cplen = strlcpy(lsm->lsm_pool_name, lmm_v3->lmm_pool_name,
sizeof(lsm->lsm_pool_name));
if (cplen >= sizeof(lsm->lsm_pool_name))
return -E2BIG;
- for (i = 0; i < 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 (lov_oinfo_is_dummy(loi))
- continue;
-
- 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_v3(D_WARNING, lmm);
- return -EINVAL;
- }
- if (!lov->lov_tgts[loi->loi_ost_idx]) {
- CERROR("OST index %d missing\n", loi->loi_ost_idx);
- 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;
- if (lsm->lsm_stripe_count == 0)
- lsm->lsm_maxbytes = stripe_maxbytes * lov->desc.ld_tgt_count;
-
return 0;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff