diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/lov/lov_ea.c')
-rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_ea.c | 208 |
1 files changed, 95 insertions, 113 deletions
diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c index 214c561..ac0bf64 100644 --- a/drivers/staging/lustre/lustre/lov/lov_ea.c +++ b/drivers/staging/lustre/lustre/lov/lov_ea.c @@ -76,18 +76,19 @@ static int lsm_lmm_verify_common(struct lov_mds_md *lmm, int lmm_bytes, return 0; } -struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size) +struct lov_stripe_md *lsm_alloc_plain(u16 stripe_count) { + size_t oinfo_ptrs_size, lsm_size; struct lov_stripe_md *lsm; struct lov_oinfo *loi; - int i, 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; - lsm = libcfs_kvzalloc(*size, GFP_NOFS); + lsm = libcfs_kvzalloc(lsm_size, GFP_NOFS); if (!lsm) return NULL; @@ -117,9 +118,43 @@ void lsm_free_plain(struct lov_stripe_md *lsm) kvfree(lsm); } -static void lsm_unpackmd_common(struct lov_stripe_md *lsm, - struct lov_mds_md *lmm) +/* + * 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) +{ + loff_t maxbytes = LUSTRE_EXT3_STRIPE_MAXBYTES; + struct obd_import *imp; + + if (!tgt->ltd_active) + return maxbytes; + + imp = tgt->ltd_obd->u.cli.cl_import; + if (!imp) + 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 int lsm_unpackmd_common(struct lov_obd *lov, + struct lov_stripe_md *lsm, + struct lov_mds_md *lmm, + struct lov_ost_data_v1 *objects) { + loff_t stripe_maxbytes = LLONG_MAX; + unsigned int stripe_count; + struct lov_oinfo *loi; + unsigned int i; + /* * This supposes lov_mds_md_v1/v3 first fields are * are the same @@ -129,11 +164,54 @@ static void lsm_unpackmd_common(struct lov_stripe_md *lsm, 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++) { + loff_t tgt_bytes; + + 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]) { + 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; + } + + tgt_bytes = lov_tgt_maxbytes(lov->lov_tgts[loi->loi_ost_idx]); + stripe_maxbytes = min_t(loff_t, stripe_maxbytes, tgt_bytes); + } + + if (stripe_maxbytes == LLONG_MAX) + stripe_maxbytes = LUSTRE_EXT3_STRIPE_MAXBYTES; + + if (!lsm->lsm_stripe_count) + lsm->lsm_maxbytes = stripe_maxbytes * lov->desc.ld_tgt_count; + else + lsm->lsm_maxbytes = stripe_maxbytes * lsm->lsm_stripe_count; + + return 0; } static void lsm_stripe_by_index_plain(struct lov_stripe_md *lsm, int *stripeno, - u64 *lov_off, u64 *swidth) + loff_t *lov_off, loff_t *swidth) { if (swidth) *swidth = (u64)lsm->lsm_stripe_size * lsm->lsm_stripe_count; @@ -141,36 +219,12 @@ lsm_stripe_by_index_plain(struct lov_stripe_md *lsm, int *stripeno, static void lsm_stripe_by_offset_plain(struct lov_stripe_md *lsm, int *stripeno, - u64 *lov_off, u64 *swidth) + loff_t *lov_off, loff_t *swidth) { if (swidth) *swidth = (u64)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 || !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) { @@ -197,45 +251,7 @@ static int lsm_lmm_verify_v1(struct lov_mds_md_v1 *lmm, int lmm_bytes, 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 = { @@ -275,55 +291,21 @@ static int lsm_lmm_verify_v3(struct lov_mds_md *lmmv1, int lmm_bytes, } 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 = 0; + int rc; - lmm = (struct lov_mds_md_v3 *)lmmv1; + rc = lsm_unpackmd_common(lov, lsm, lmm, lmm_v3->lmm_objects); + if (rc) + 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; } |