diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/lov')
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_dev.c | 2 | ||||
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_ea.c | 14 | ||||
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_internal.h | 12 | ||||
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_io.c | 16 | ||||
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_lock.c | 26 | ||||
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_obd.c | 62 | ||||
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_object.c | 10 | ||||
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_pool.c | 2 | ||||
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_request.c | 9 | ||||
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lproc_lov.c | 36 |
10 files changed, 139 insertions, 50 deletions
diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c index 796a015d070c..711b837ddba2 100644 --- a/drivers/staging/lustre/lustre/lov/lov_dev.c +++ b/drivers/staging/lustre/lustre/lov/lov_dev.c @@ -60,7 +60,7 @@ struct kmem_cache *lovsub_req_kmem; struct kmem_cache *lov_lock_link_kmem; /** Lock class of lov_device::ld_mutex. */ -struct lock_class_key cl_lov_device_mutex_class; +static struct lock_class_key cl_lov_device_mutex_class; struct lu_kmem_descr lov_caches[] = { { diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c index e9ec39c5a6c2..2bcfaeaff6fa 100644 --- a/drivers/staging/lustre/lustre/lov/lov_ea.c +++ b/drivers/staging/lustre/lustre/lov/lov_ea.c @@ -209,8 +209,8 @@ static int lsm_lmm_verify_v1(struct lov_mds_md_v1 *lmm, int lmm_bytes, return lsm_lmm_verify_common(lmm, lmm_bytes, *stripe_count); } -int lsm_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm, - struct lov_mds_md_v1 *lmm) +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; @@ -227,6 +227,9 @@ int lsm_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm, 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); @@ -287,8 +290,8 @@ static int lsm_lmm_verify_v3(struct lov_mds_md *lmmv1, int lmm_bytes, *stripe_count); } -int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm, - struct lov_mds_md *lmmv1) +static int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm, + struct lov_mds_md *lmmv1) { struct lov_mds_md_v3 *lmm; struct lov_oinfo *loi; @@ -314,6 +317,9 @@ int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm, 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); diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h index 8c8508bbbb80..b644acc9b034 100644 --- a/drivers/staging/lustre/lustre/lov/lov_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_internal.h @@ -304,4 +304,16 @@ static inline struct lov_stripe_md *lsm_addref(struct lov_stripe_md *lsm) return lsm; } +static inline bool lov_oinfo_is_dummy(const struct lov_oinfo *loi) +{ + if (unlikely(loi->loi_oi.oi.oi_id == 0 && + loi->loi_oi.oi.oi_seq == 0 && + loi->loi_ost_idx == 0 && + loi->loi_ost_gen == 0)) + return true; + + return false; +} + + #endif diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c index f1f6db3f664a..cf96e0d01e22 100644 --- a/drivers/staging/lustre/lustre/lov/lov_io.c +++ b/drivers/staging/lustre/lustre/lov/lov_io.c @@ -148,6 +148,9 @@ static int lov_io_sub_init(const struct lu_env *env, struct lov_io *lio, LASSERT(sub->sub_env == NULL); LASSERT(sub->sub_stripe < lio->lis_stripe_count); + if (unlikely(lov_r0(lov)->lo_sub[stripe] == NULL)) + return -EIO; + result = 0; sub->sub_io_initialized = 0; sub->sub_borrowed = 0; @@ -391,7 +394,16 @@ static int lov_io_iter_init(const struct lu_env *env, endpos, &start, &end)) continue; - end = lov_offset_mod(end, +1); + if (unlikely(lov_r0(lio->lis_object)->lo_sub[stripe] == NULL)) { + if (ios->cis_io->ci_type == CIT_READ || + ios->cis_io->ci_type == CIT_WRITE || + ios->cis_io->ci_type == CIT_FAULT) + return -EIO; + + continue; + } + + end = lov_offset_mod(end, 1); sub = lov_sub_get(env, lio, stripe); if (!IS_ERR(sub)) { lov_io_sub_inherit(sub->sub_io, lio, stripe, @@ -913,7 +925,7 @@ int lov_io_init_empty(const struct lu_env *env, struct cl_object *obj, break; case CIT_FSYNC: case CIT_SETATTR: - result = +1; + result = 1; break; case CIT_WRITE: result = -EBADF; diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c index 49e694222ac8..f2eca565bdda 100644 --- a/drivers/staging/lustre/lustre/lov/lov_lock.c +++ b/drivers/staging/lustre/lustre/lov/lov_lock.c @@ -308,7 +308,8 @@ static int lov_lock_sub_init(const struct lu_env *env, * XXX for wide striping smarter algorithm is desirable, * breaking out of the loop, early. */ - if (lov_stripe_intersects(loo->lo_lsm, i, + if (likely(r0->lo_sub[i] != NULL) && + lov_stripe_intersects(loo->lo_lsm, i, file_start, file_end, &start, &end)) nr++; } @@ -326,7 +327,8 @@ static int lov_lock_sub_init(const struct lu_env *env, * top-lock. */ for (i = 0, nr = 0; i < r0->lo_nr; ++i) { - if (lov_stripe_intersects(loo->lo_lsm, i, + if (likely(r0->lo_sub[i] != NULL) && + lov_stripe_intersects(loo->lo_lsm, i, file_start, file_end, &start, &end)) { struct cl_lock_descr *descr; @@ -914,10 +916,22 @@ static int lov_lock_stripe_is_matching(const struct lu_env *env, */ start = cl_offset(&lov->lo_cl, descr->cld_start); end = cl_offset(&lov->lo_cl, descr->cld_end + 1) - 1; - result = end - start <= lsm->lsm_stripe_size && - stripe == lov_stripe_number(lsm, start) && - stripe == lov_stripe_number(lsm, end); - if (result) { + result = 0; + /* glimpse should work on the object with LOV EA hole. */ + if (end - start <= lsm->lsm_stripe_size) { + int idx; + + idx = lov_stripe_number(lsm, start); + if (idx == stripe || + unlikely(lov_r0(lov)->lo_sub[idx] == NULL)) { + idx = lov_stripe_number(lsm, end); + if (idx == stripe || + unlikely(lov_r0(lov)->lo_sub[idx] == NULL)) + result = 1; + } + } + + if (result != 0) { struct cl_lock_descr *subd = &lov_env_info(env)->lti_ldescr; u64 sub_start; u64 sub_end; diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c index ea503d2a19f8..02781576637e 100644 --- a/drivers/staging/lustre/lustre/lov/lov_obd.c +++ b/drivers/staging/lustre/lustre/lov/lov_obd.c @@ -553,7 +553,7 @@ static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp, newsize = max_t(__u32, lov->lov_tgt_size, 2); while (newsize < index + 1) - newsize = newsize << 1; + newsize <<= 1; OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize); if (newtgts == NULL) { mutex_unlock(&lov->lov_lock); @@ -1011,9 +1011,13 @@ static int lov_recreate(struct obd_export *exp, struct obdo *src_oa, } for (i = 0; i < lsm->lsm_stripe_count; i++) { - if (lsm->lsm_oinfo[i]->loi_ost_idx == ost_idx) { - if (ostid_id(&lsm->lsm_oinfo[i]->loi_oi) != - ostid_id(&src_oa->o_oi)) { + struct lov_oinfo *loi = lsm->lsm_oinfo[i]; + + if (lov_oinfo_is_dummy(loi)) + continue; + + if (loi->loi_ost_idx == ost_idx) { + if (ostid_id(&loi->loi_oi) != ostid_id(&src_oa->o_oi)) { rc = -EINVAL; goto out; } @@ -1305,10 +1309,14 @@ static int lov_find_cbdata(struct obd_export *exp, struct lov_stripe_md submd; struct lov_oinfo *loi = lsm->lsm_oinfo[i]; + if (lov_oinfo_is_dummy(loi)) + continue; + if (!lov->lov_tgts[loi->loi_ost_idx]) { - CDEBUG(D_HA, "lov idx %d NULL \n", loi->loi_ost_idx); + CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx); continue; } + submd.lsm_oi = loi->loi_oi; submd.lsm_stripe_count = 0; rc = obd_find_cbdata(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp, @@ -1601,9 +1609,9 @@ static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len, * \param fm_end logical end of mapping * \param start_stripe starting stripe will be returned in this */ -u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap, - struct lov_stripe_md *lsm, u64 fm_start, - u64 fm_end, int *start_stripe) +static u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap, + struct lov_stripe_md *lsm, u64 fm_start, + u64 fm_end, int *start_stripe) { u64 local_end = fiemap->fm_extents[0].fe_logical; u64 lun_start, lun_end; @@ -1616,8 +1624,12 @@ u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap, /* Find out stripe_no from ost_index saved in the fe_device */ for (i = 0; i < lsm->lsm_stripe_count; i++) { - if (lsm->lsm_oinfo[i]->loi_ost_idx == - fiemap->fm_extents[0].fe_device) { + struct lov_oinfo *oinfo = lsm->lsm_oinfo[i]; + + if (lov_oinfo_is_dummy(oinfo)) + continue; + + if (oinfo->loi_ost_idx == fiemap->fm_extents[0].fe_device) { stripe_no = i; break; } @@ -1658,17 +1670,17 @@ u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap, * * \retval last_stripe return the last stripe of the mapping */ -int fiemap_calc_last_stripe(struct lov_stripe_md *lsm, u64 fm_start, - u64 fm_end, int start_stripe, - int *stripe_count) +static int fiemap_calc_last_stripe(struct lov_stripe_md *lsm, u64 fm_start, + u64 fm_end, int start_stripe, + int *stripe_count) { int last_stripe; u64 obd_start, obd_end; int i, j; if (fm_end - fm_start > lsm->lsm_stripe_size * lsm->lsm_stripe_count) { - last_stripe = (start_stripe < 1 ? lsm->lsm_stripe_count - 1 : - start_stripe - 1); + last_stripe = start_stripe < 1 ? lsm->lsm_stripe_count - 1 : + start_stripe - 1; *stripe_count = lsm->lsm_stripe_count; } else { for (j = 0, i = start_stripe; j < lsm->lsm_stripe_count; @@ -1694,10 +1706,10 @@ int fiemap_calc_last_stripe(struct lov_stripe_md *lsm, u64 fm_start, * \param ext_count number of extents to be copied * \param current_extent where to start copying in main extent array */ -void fiemap_prepare_and_copy_exts(struct ll_user_fiemap *fiemap, - struct ll_fiemap_extent *lcl_fm_ext, - int ost_index, unsigned int ext_count, - int current_extent) +static void fiemap_prepare_and_copy_exts(struct ll_user_fiemap *fiemap, + struct ll_fiemap_extent *lcl_fm_ext, + int ost_index, unsigned int ext_count, + int current_extent) { char *to; int ext; @@ -1795,6 +1807,11 @@ static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key, &lun_start, &obd_object_end)) == 0) continue; + if (lov_oinfo_is_dummy(lsm->lsm_oinfo[cur_stripe])) { + rc = -EIO; + goto out; + } + /* If this is a continuation FIEMAP call and we are on * starting stripe then lun_start needs to be set to * fm_end_offset */ @@ -1985,6 +2002,9 @@ static int lov_get_info(const struct lu_env *env, struct obd_export *exp, * be NULL and won't match the lock's export. */ for (i = 0; i < lsm->lsm_stripe_count; i++) { loi = lsm->lsm_oinfo[i]; + if (lov_oinfo_is_dummy(loi)) + continue; + if (!lov->lov_tgts[loi->loi_ost_idx]) continue; if (lov->lov_tgts[loi->loi_ost_idx]->ltd_exp == @@ -2290,7 +2310,7 @@ out: return rc; } -struct obd_ops lov_obd_ops = { +static struct obd_ops lov_obd_ops = { .o_owner = THIS_MODULE, .o_setup = lov_setup, .o_precleanup = lov_precleanup, @@ -2324,7 +2344,7 @@ struct obd_ops lov_obd_ops = { struct kmem_cache *lov_oinfo_slab; -int __init lov_init(void) +static int __init lov_init(void) { struct lprocfs_static_vars lvars = { NULL }; int rc; diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c index 4cab730ab429..a22342fa792d 100644 --- a/drivers/staging/lustre/lustre/lov/lov_object.c +++ b/drivers/staging/lustre/lustre/lov/lov_object.c @@ -42,6 +42,7 @@ #define DEBUG_SUBSYSTEM S_LOV #include "lov_cl_internal.h" +#include "../include/lclient.h" /** \addtogroup lov * @{ @@ -230,6 +231,9 @@ static int lov_init_raid0(const struct lu_env *env, struct lov_oinfo *oinfo = lsm->lsm_oinfo[i]; int ost_idx = oinfo->loi_ost_idx; + if (lov_oinfo_is_dummy(oinfo)) + continue; + result = ostid_to_fid(ofid, &oinfo->loi_oi, oinfo->loi_ost_idx); if (result != 0) @@ -563,7 +567,7 @@ static const struct lov_layout_operations lov_dispatch[] = { /** * Return lov_layout_type associated with a given lsm */ -enum lov_layout_type lov_type(struct lov_stripe_md *lsm) +static enum lov_layout_type lov_type(struct lov_stripe_md *lsm) { if (lsm == NULL) return LLT_EMPTY; @@ -973,6 +977,10 @@ int lov_read_and_clear_async_rc(struct cl_object *clob) LASSERT(lsm != NULL); for (i = 0; i < lsm->lsm_stripe_count; i++) { struct lov_oinfo *loi = lsm->lsm_oinfo[i]; + + if (lov_oinfo_is_dummy(loi)) + continue; + if (loi->loi_ar.ar_rc && !rc) rc = loi->loi_ar.ar_rc; loi->loi_ar.ar_rc = 0; diff --git a/drivers/staging/lustre/lustre/lov/lov_pool.c b/drivers/staging/lustre/lustre/lov/lov_pool.c index 0e0ea60de4c8..d96163de773f 100644 --- a/drivers/staging/lustre/lustre/lov/lov_pool.c +++ b/drivers/staging/lustre/lustre/lov/lov_pool.c @@ -71,7 +71,7 @@ void lov_pool_putref(struct pool_desc *pool) } } -void lov_pool_putref_locked(struct pool_desc *pool) +static void lov_pool_putref_locked(struct pool_desc *pool) { CDEBUG(D_INFO, "pool %p\n", pool); LASSERT(atomic_read(&pool->pool_refcount) > 1); diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c index 7358b9d29103..933e2d1f8127 100644 --- a/drivers/staging/lustre/lustre/lov/lov_request.c +++ b/drivers/staging/lustre/lustre/lov/lov_request.c @@ -299,6 +299,9 @@ int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo, struct lov_request *req; loi = oinfo->oi_md->lsm_oinfo[i]; + if (lov_oinfo_is_dummy(loi)) + continue; + if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) { CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx); if (oinfo->oi_oa->o_valid & OBD_MD_FLEPOCH) { @@ -384,6 +387,9 @@ int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo, struct lov_request *req; loi = lsm->lsm_oinfo[i]; + if (lov_oinfo_is_dummy(loi)) + continue; + if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) { CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx); continue; @@ -497,6 +503,9 @@ int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo, struct lov_oinfo *loi = oinfo->oi_md->lsm_oinfo[i]; struct lov_request *req; + if (lov_oinfo_is_dummy(loi)) + continue; + if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) { CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx); continue; diff --git a/drivers/staging/lustre/lustre/lov/lproc_lov.c b/drivers/staging/lustre/lustre/lov/lproc_lov.c index c99f2f44ec62..174cbf5c138f 100644 --- a/drivers/staging/lustre/lustre/lov/lproc_lov.c +++ b/drivers/staging/lustre/lustre/lov/lproc_lov.c @@ -35,7 +35,7 @@ */ #define DEBUG_SUBSYSTEM S_CLASS -#include <asm/statfs.h> +#include <linux/statfs.h> #include "../include/lprocfs_status.h" #include "../include/obd_class.h" #include <linux/seq_file.h> @@ -48,7 +48,8 @@ static int lov_stripesize_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%llu\n", desc->ld_default_stripe_size); + seq_printf(m, "%llu\n", desc->ld_default_stripe_size); + return 0; } static ssize_t lov_stripesize_seq_write(struct file *file, @@ -79,7 +80,8 @@ static int lov_stripeoffset_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%llu\n", desc->ld_default_stripe_offset); + seq_printf(m, "%llu\n", desc->ld_default_stripe_offset); + return 0; } static ssize_t lov_stripeoffset_seq_write(struct file *file, @@ -109,7 +111,8 @@ static int lov_stripetype_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%u\n", desc->ld_pattern); + seq_printf(m, "%u\n", desc->ld_pattern); + return 0; } static ssize_t lov_stripetype_seq_write(struct file *file, @@ -139,8 +142,8 @@ static int lov_stripecount_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%d\n", - (__s16)(desc->ld_default_stripe_count + 1) - 1); + seq_printf(m, "%d\n", (__s16)(desc->ld_default_stripe_count + 1) - 1); + return 0; } static ssize_t lov_stripecount_seq_write(struct file *file, @@ -170,7 +173,8 @@ static int lov_numobd_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%u\n", desc->ld_tgt_count); + seq_printf(m, "%u\n", desc->ld_tgt_count); + return 0; } LPROC_SEQ_FOPS_RO(lov_numobd); @@ -181,7 +185,8 @@ static int lov_activeobd_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%u\n", desc->ld_active_tgt_count); + seq_printf(m, "%u\n", desc->ld_active_tgt_count); + return 0; } LPROC_SEQ_FOPS_RO(lov_activeobd); @@ -192,7 +197,8 @@ static int lov_desc_uuid_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); lov = &dev->u.lov; - return seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid); + seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid); + return 0; } LPROC_SEQ_FOPS_RO(lov_desc_uuid); @@ -228,12 +234,14 @@ static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos) static int lov_tgt_seq_show(struct seq_file *p, void *v) { struct lov_tgt_desc *tgt = v; - return seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_index, - obd_uuid2str(&tgt->ltd_uuid), - tgt->ltd_active ? "" : "IN"); + + seq_printf(p, "%d: %s %sACTIVE\n", + tgt->ltd_index, obd_uuid2str(&tgt->ltd_uuid), + tgt->ltd_active ? "" : "IN"); + return 0; } -struct seq_operations lov_tgt_sops = { +static const struct seq_operations lov_tgt_sops = { .start = lov_tgt_seq_start, .stop = lov_tgt_seq_stop, .next = lov_tgt_seq_next, @@ -262,7 +270,7 @@ LPROC_SEQ_FOPS_RO_TYPE(lov, kbytestotal); LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesfree); LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesavail); -struct lprocfs_vars lprocfs_lov_obd_vars[] = { +static struct lprocfs_vars lprocfs_lov_obd_vars[] = { { "uuid", &lov_uuid_fops, NULL, 0 }, { "stripesize", &lov_stripesize_fops, NULL }, { "stripeoffset", &lov_stripeoffset_fops, NULL }, |