From: John L. Hammond <john.hamm...@intel.com> In struct lustre_md replace the struct lov_stripe_md *lsm member with an opaque struct lu_buf layout which holds the layout metadata returned by the server. Refactor the LOV object initialization and layout change code to accommodate this. Simplify lov_unpackmd() and supporting functions according to the reduced number of use cases.
Signed-off-by: John L. Hammond <john.hamm...@intel.com> Signed-off-by: Jinshan Xiong <jinshan.xi...@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5814 Reviewed-on: http://review.whamcloud.com/13722 Reviewed-by: James Simmons <uja.o...@yahoo.com> Reviewed-by: Oleg Drokin <oleg.dro...@intel.com> Signed-off-by: James Simmons <jsimm...@infradead.org> --- drivers/staging/lustre/lustre/include/cl_object.h | 2 +- drivers/staging/lustre/lustre/include/obd.h | 2 +- drivers/staging/lustre/lustre/llite/file.c | 29 +---- drivers/staging/lustre/lustre/llite/lcommon_cl.c | 2 +- drivers/staging/lustre/lustre/llite/llite_lib.c | 11 +-- drivers/staging/lustre/lustre/llite/namei.c | 7 +- drivers/staging/lustre/lustre/lov/lov_ea.c | 9 +- drivers/staging/lustre/lustre/lov/lov_internal.h | 15 +-- drivers/staging/lustre/lustre/lov/lov_obd.c | 1 - drivers/staging/lustre/lustre/lov/lov_object.c | 120 ++++++++++++--------- drivers/staging/lustre/lustre/lov/lov_pack.c | 100 +++++++----------- drivers/staging/lustre/lustre/mdc/mdc_request.c | 19 +--- 12 files changed, 134 insertions(+), 183 deletions(-) diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index dfef4bc..514d650 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -267,7 +267,7 @@ struct cl_object_conf { /** * Object layout. This is consumed by lov. */ - struct lustre_md *coc_md; + struct lu_buf coc_layout; /** * Description of particular stripe location in the * cluster. This is consumed by osc. diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index ebb3012..c8a6e23 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -864,7 +864,7 @@ struct obd_ops { /* lmv structures */ struct lustre_md { struct mdt_body *body; - struct lov_stripe_md *lsm; + struct lu_buf layout; struct lmv_stripe_md *lmv; #ifdef CONFIG_FS_POSIX_ACL struct posix_acl *posix_acl; diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 2c8df43..0ae78c7 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -3275,7 +3275,6 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, enum ldlm_mode mode, struct ll_inode_info *lli = ll_i2info(inode); struct ll_sb_info *sbi = ll_i2sbi(inode); struct ldlm_lock *lock; - struct lustre_md md = { NULL }; struct cl_object_conf conf; int rc = 0; bool lvb_ready; @@ -3310,37 +3309,19 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, enum ldlm_mode mode, /* for layout lock, lmm is returned in lock's lvb. * lvb_data is immutable if the lock is held so it's safe to access it - * without res lock. See the description in ldlm_lock_decref_internal() - * for the condition to free lvb_data of layout lock - */ - if (lock->l_lvb_data) { - rc = obd_unpackmd(sbi->ll_dt_exp, &md.lsm, - lock->l_lvb_data, lock->l_lvb_len); - if (rc < 0) { - CERROR("%s: file " DFID " unpackmd error: %d\n", - ll_get_fsname(inode->i_sb, NULL, 0), - PFID(&lli->lli_fid), rc); - goto out; - } - - LASSERTF(md.lsm, "lvb_data = %p, lvb_len = %u\n", - lock->l_lvb_data, lock->l_lvb_len); - rc = 0; - } - - /* set layout to file. Unlikely this will fail as old layout was + * without res lock. + * + * set layout to file. Unlikely this will fail as old layout was * surely eliminated */ memset(&conf, 0, sizeof(conf)); conf.coc_opc = OBJECT_CONF_SET; conf.coc_inode = inode; conf.coc_lock = lock; - conf.u.coc_md = &md; + conf.u.coc_layout.lb_buf = lock->l_lvb_data; + conf.u.coc_layout.lb_len = lock->l_lvb_len; rc = ll_layout_conf(inode, &conf); - if (md.lsm) - obd_free_memmd(sbi->ll_dt_exp, &md.lsm); - /* refresh layout failed, need to wait */ wait_layout = rc == -EBUSY; diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 4087db0..56e414b 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -150,7 +150,7 @@ int cl_file_inode_init(struct inode *inode, struct lustre_md *md) struct cl_object_conf conf = { .coc_inode = inode, .u = { - .coc_md = md + .coc_layout = md->layout, } }; int result = 0; diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index fba1499..b896ac1 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -469,8 +469,6 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt, ptlrpc_req_finished(request); if (IS_ERR(root)) { - if (lmd.lsm) - obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm); #ifdef CONFIG_FS_POSIX_ACL if (lmd.posix_acl) { posix_acl_release(lmd.posix_acl); @@ -1688,11 +1686,9 @@ int ll_update_inode(struct inode *inode, struct lustre_md *md) { struct ll_inode_info *lli = ll_i2info(inode); struct mdt_body *body = md->body; - struct lov_stripe_md *lsm = md->lsm; struct ll_sb_info *sbi = ll_i2sbi(inode); - LASSERT((lsm != NULL) == ((body->mbo_valid & OBD_MD_FLEASIZE) != 0)); - if (lsm) + if (body->mbo_valid & OBD_MD_FLEASIZE) cl_file_inode_init(inode, md); if (S_ISDIR(inode->i_mode)) { @@ -2135,17 +2131,14 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req, conf.coc_opc = OBJECT_CONF_SET; conf.coc_inode = *inode; conf.coc_lock = lock; - conf.u.coc_md = &md; + conf.u.coc_layout = md.layout; (void)ll_layout_conf(*inode, &conf); } LDLM_LOCK_PUT(lock); } out: - if (md.lsm) - obd_free_memmd(sbi->ll_dt_exp, &md.lsm); md_free_lustre_md(sbi->ll_md_exp, &md); - cleanup: if (rc != 0 && it && it->it_op & IT_OPEN) ll_open_cleanup(sb ? sb : (*inode)->i_sb, req); diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c index 9b4095f..89fd441 100644 --- a/drivers/staging/lustre/lustre/llite/namei.c +++ b/drivers/staging/lustre/lustre/llite/namei.c @@ -113,12 +113,9 @@ struct inode *ll_iget(struct super_block *sb, ino_t hash, if (inode->i_state & I_NEW) { rc = ll_read_inode2(inode, md); if (!rc && S_ISREG(inode->i_mode) && - !ll_i2info(inode)->lli_clob) { - CDEBUG(D_INODE, "%s: apply lsm %p to inode "DFID"\n", - ll_get_fsname(sb, NULL, 0), md->lsm, - PFID(ll_inode2fid(inode))); + !ll_i2info(inode)->lli_clob) rc = cl_file_inode_init(inode, md); - } + if (rc) { make_bad_inode(inode); unlock_new_inode(inode); diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c index d7dc0aa..53db170 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; + unsigned 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; diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h index 41e7c5f..5b151bb 100644 --- a/drivers/staging/lustre/lustre/lov/lov_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_internal.h @@ -79,13 +79,6 @@ static inline bool lsm_has_objects(struct lov_stripe_md *lsm) return true; } -static inline int lov_stripe_md_size(unsigned int stripe_count) -{ - struct lov_stripe_md lsm; - - return sizeof(lsm) + stripe_count * sizeof(lsm.lsm_oinfo[0]); -} - struct lsm_operations { void (*lsm_free)(struct lov_stripe_md *); void (*lsm_stripe_by_index)(struct lov_stripe_md *, int *, loff_t *, @@ -254,10 +247,8 @@ int lov_del_target(struct obd_device *obd, __u32 index, /* lov_pack.c */ ssize_t lov_lsm_pack(const struct lov_stripe_md *lsm, void *buf, size_t buf_size); -int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp, - struct lov_mds_md *lmm, int lmm_bytes); -int lov_alloc_memmd(struct lov_stripe_md **lsmp, __u16 stripe_count, - int pattern, int magic); +struct lov_stripe_md *lov_unpackmd(struct lov_obd *lov, struct lov_mds_md *lmm, + size_t lmm_size); int lov_free_memmd(struct lov_stripe_md **lsmp); void lov_dump_lmm_v1(int level, struct lov_mds_md_v1 *lmm); @@ -265,7 +256,7 @@ int lov_alloc_memmd(struct lov_stripe_md **lsmp, __u16 stripe_count, void lov_dump_lmm_common(int level, void *lmmp); /* lov_ea.c */ -struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size); +struct lov_stripe_md *lsm_alloc_plain(u16 stripe_count); void lsm_free_plain(struct lov_stripe_md *lsm); void dump_lsm(unsigned int level, const struct lov_stripe_md *lsm); diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c index 621f66e..421a0e2 100644 --- a/drivers/staging/lustre/lustre/lov/lov_obd.c +++ b/drivers/staging/lustre/lustre/lov/lov_obd.c @@ -1406,7 +1406,6 @@ static int lov_quotactl(struct obd_device *obd, struct obd_export *exp, .disconnect = lov_disconnect, .statfs = lov_statfs, .statfs_async = lov_statfs_async, - .unpackmd = lov_unpackmd, .iocontrol = lov_iocontrol, .get_info = lov_get_info, .set_info_async = lov_set_info_async, diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c index 82b99e0..711a3b9 100644 --- a/drivers/staging/lustre/lustre/lov/lov_object.c +++ b/drivers/staging/lustre/lustre/lov/lov_object.c @@ -39,6 +39,11 @@ #include "lov_cl_internal.h" +static inline struct lov_device *lov_object_dev(struct lov_object *obj) +{ + return lu2lov_dev(obj->lo_cl.co_lu.lo_dev); +} + /** \addtogroup lov * @{ */ @@ -51,7 +56,7 @@ struct lov_layout_operations { int (*llo_init)(const struct lu_env *env, struct lov_device *dev, - struct lov_object *lov, + struct lov_object *lov, struct lov_stripe_md *lsm, const struct cl_object_conf *conf, union lov_layout_state *state); int (*llo_delete)(const struct lu_env *env, struct lov_object *lov, @@ -96,17 +101,17 @@ static void lov_install_empty(const struct lu_env *env, */ } -static int lov_init_empty(const struct lu_env *env, - struct lov_device *dev, struct lov_object *lov, +static int lov_init_empty(const struct lu_env *env, struct lov_device *dev, + struct lov_object *lov, struct lov_stripe_md *lsm, const struct cl_object_conf *conf, - union lov_layout_state *state) + union lov_layout_state *state) { return 0; } static void lov_install_raid0(const struct lu_env *env, struct lov_object *lov, - union lov_layout_state *state) + union lov_layout_state *state) { } @@ -211,8 +216,8 @@ static int lov_page_slice_fixup(struct lov_object *lov, return cl_object_header(stripe)->coh_page_bufsize; } -static int lov_init_raid0(const struct lu_env *env, - struct lov_device *dev, struct lov_object *lov, +static int lov_init_raid0(const struct lu_env *env, struct lov_device *dev, + struct lov_object *lov, struct lov_stripe_md *lsm, const struct cl_object_conf *conf, union lov_layout_state *state) { @@ -222,7 +227,6 @@ static int lov_init_raid0(const struct lu_env *env, struct cl_object *stripe; struct lov_thread_info *lti = lov_env_info(env); struct cl_object_conf *subconf = <i->lti_stripe_conf; - struct lov_stripe_md *lsm = conf->u.coc_md->lsm; struct lu_fid *ofid = <i->lti_fid; struct lov_layout_raid0 *r0 = &state->raid0; @@ -297,13 +301,11 @@ static int lov_init_raid0(const struct lu_env *env, return result; } -static int lov_init_released(const struct lu_env *env, - struct lov_device *dev, struct lov_object *lov, +static int lov_init_released(const struct lu_env *env, struct lov_device *dev, + struct lov_object *lov, struct lov_stripe_md *lsm, const struct cl_object_conf *conf, union lov_layout_state *state) { - struct lov_stripe_md *lsm = conf->u.coc_md->lsm; - LASSERT(lsm); LASSERT(lsm_is_released(lsm)); LASSERT(!lov->lo_lsm); @@ -720,25 +722,20 @@ static int lov_layout_wait(const struct lu_env *env, struct lov_object *lov) } static int lov_layout_change(const struct lu_env *unused, - struct lov_object *lov, + struct lov_object *lov, struct lov_stripe_md *lsm, const struct cl_object_conf *conf) { - int result; - enum lov_layout_type llt = LLT_EMPTY; + enum lov_layout_type llt = lov_type(lsm); union lov_layout_state *state = &lov->u; const struct lov_layout_operations *old_ops; const struct lov_layout_operations *new_ops; - void *cookie; struct lu_env *env; int refcheck; + int rc; LASSERT(0 <= lov->lo_type && lov->lo_type < ARRAY_SIZE(lov_dispatch)); - if (conf->u.coc_md) - llt = lov_type(conf->u.coc_md->lsm); - LASSERT(0 <= llt && llt < ARRAY_SIZE(lov_dispatch)); - cookie = cl_env_reenter(); env = cl_env_get(&refcheck); if (IS_ERR(env)) { @@ -746,6 +743,8 @@ static int lov_layout_change(const struct lu_env *unused, return PTR_ERR(env); } + LASSERT(0 <= llt && llt < ARRAY_SIZE(lov_dispatch)); + CDEBUG(D_INODE, DFID" from %s to %s\n", PFID(lu_object_fid(lov2lu(lov))), llt2str(lov->lo_type), llt2str(llt)); @@ -753,38 +752,38 @@ static int lov_layout_change(const struct lu_env *unused, old_ops = &lov_dispatch[lov->lo_type]; new_ops = &lov_dispatch[llt]; - result = cl_object_prune(env, &lov->lo_cl); - if (result != 0) + rc = cl_object_prune(env, &lov->lo_cl); + if (rc) goto out; - result = old_ops->llo_delete(env, lov, &lov->u); - if (result == 0) { - old_ops->llo_fini(env, lov, &lov->u); + rc = old_ops->llo_delete(env, lov, &lov->u); + if (rc) + goto out; - LASSERT(atomic_read(&lov->lo_active_ios) == 0); + old_ops->llo_fini(env, lov, &lov->u); - lov->lo_type = LLT_EMPTY; - /* page bufsize fixup */ - cl_object_header(&lov->lo_cl)->coh_page_bufsize -= + LASSERT(!atomic_read(&lov->lo_active_ios)); + + lov->lo_type = LLT_EMPTY; + + /* page bufsize fixup */ + cl_object_header(&lov->lo_cl)->coh_page_bufsize -= lov_page_slice_fixup(lov, NULL); - result = new_ops->llo_init(env, - lu2lov_dev(lov->lo_cl.co_lu.lo_dev), - lov, conf, state); - if (result == 0) { - new_ops->llo_install(env, lov, state); - lov->lo_type = llt; - } else { - new_ops->llo_delete(env, lov, state); - new_ops->llo_fini(env, lov, state); - /* this file becomes an EMPTY file. */ - } + rc = new_ops->llo_init(env, lov_object_dev(lov), lov, lsm, conf, state); + if (rc) { + new_ops->llo_delete(env, lov, state); + new_ops->llo_fini(env, lov, state); + /* this file becomes an EMPTY file. */ + goto out; } + new_ops->llo_install(env, lov, state); + lov->lo_type = llt; out: cl_env_put(env, &refcheck); cl_env_reexit(cookie); - return result; + return rc; } /***************************************************************************** @@ -795,26 +794,37 @@ static int lov_layout_change(const struct lu_env *unused, int lov_object_init(const struct lu_env *env, struct lu_object *obj, const struct lu_object_conf *conf) { - struct lov_device *dev = lu2lov_dev(obj->lo_dev); struct lov_object *lov = lu2lov(obj); + struct lov_device *dev = lov_object_dev(lov); const struct cl_object_conf *cconf = lu2cl_conf(conf); union lov_layout_state *set = &lov->u; const struct lov_layout_operations *ops; - int result; + struct lov_stripe_md *lsm = NULL; + int rc; init_rwsem(&lov->lo_type_guard); atomic_set(&lov->lo_active_ios, 0); init_waitqueue_head(&lov->lo_waitq); - cl_object_page_init(lu2cl(obj), sizeof(struct lov_page)); + if (cconf->u.coc_layout.lb_buf) { + lsm = lov_unpackmd(dev->ld_lov, + cconf->u.coc_layout.lb_buf, + cconf->u.coc_layout.lb_len); + if (IS_ERR(lsm)) + return PTR_ERR(lsm); + } + /* no locking is necessary, as object is being created */ - lov->lo_type = lov_type(cconf->u.coc_md->lsm); + lov->lo_type = lov_type(lsm); ops = &lov_dispatch[lov->lo_type]; - result = ops->llo_init(env, dev, lov, cconf, set); - if (result == 0) + rc = ops->llo_init(env, dev, lov, lsm, cconf, set); + if (!rc) ops->llo_install(env, lov, set); - return result; + + lov_lsm_put(lsm); + + return rc; } static int lov_conf_set(const struct lu_env *env, struct cl_object *obj, @@ -824,6 +834,15 @@ static int lov_conf_set(const struct lu_env *env, struct cl_object *obj, struct lov_object *lov = cl2lov(obj); int result = 0; + if (conf->coc_opc == OBJECT_CONF_SET && + conf->u.coc_layout.lb_buf) { + lsm = lov_unpackmd(lov_object_dev(lov)->ld_lov, + conf->u.coc_layout.lb_buf, + conf->u.coc_layout.lb_len); + if (IS_ERR(lsm)) + return PTR_ERR(lsm); + } + lov_conf_lock(lov); if (conf->coc_opc == OBJECT_CONF_INVALIDATE) { lov->lo_layout_invalid = true; @@ -843,8 +862,6 @@ static int lov_conf_set(const struct lu_env *env, struct cl_object *obj, LASSERT(conf->coc_opc == OBJECT_CONF_SET); - if (conf->u.coc_md) - lsm = conf->u.coc_md->lsm; if ((!lsm && !lov->lo_lsm) || ((lsm && lov->lo_lsm) && (lov->lo_lsm->lsm_layout_gen == lsm->lsm_layout_gen) && @@ -862,11 +879,12 @@ static int lov_conf_set(const struct lu_env *env, struct cl_object *obj, goto out; } - result = lov_layout_change(env, lov, conf); + result = lov_layout_change(env, lov, lsm, conf); lov->lo_layout_invalid = result != 0; out: lov_conf_unlock(lov); + lov_lsm_put(lsm); CDEBUG(D_INODE, DFID" lo_layout_invalid=%d\n", PFID(lu_object_fid(lov2lu(lov))), lov->lo_layout_invalid); return result; diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c index ccc1fae..9ba87d2 100644 --- a/drivers/staging/lustre/lustre/lov/lov_pack.c +++ b/drivers/staging/lustre/lustre/lov/lov_pack.c @@ -195,34 +195,34 @@ static int lov_verify_lmm(void *lmm, int lmm_bytes, __u16 *stripe_count) return rc; } -int lov_alloc_memmd(struct lov_stripe_md **lsmp, __u16 stripe_count, - int pattern, int magic) +struct lov_stripe_md *lov_lsm_alloc(u16 stripe_count, u32 pattern, u32 magic) { - int i, lsm_size; + struct lov_stripe_md *lsm; + unsigned int i; - CDEBUG(D_INFO, "alloc lsm, stripe_count %d\n", stripe_count); + CDEBUG(D_INFO, "alloc lsm, stripe_count %u\n", stripe_count); - *lsmp = lsm_alloc_plain(stripe_count, &lsm_size); - if (!*lsmp) { - CERROR("can't allocate lsmp stripe_count %d\n", stripe_count); - return -ENOMEM; + lsm = lsm_alloc_plain(stripe_count); + if (!lsm) { + CERROR("cannot allocate LSM stripe_count %u\n", stripe_count); + return ERR_PTR(-ENOMEM); } - atomic_set(&(*lsmp)->lsm_refc, 1); - spin_lock_init(&(*lsmp)->lsm_lock); - (*lsmp)->lsm_magic = magic; - (*lsmp)->lsm_stripe_count = stripe_count; - (*lsmp)->lsm_maxbytes = LUSTRE_EXT3_STRIPE_MAXBYTES * stripe_count; - (*lsmp)->lsm_pattern = pattern; - (*lsmp)->lsm_pool_name[0] = '\0'; - (*lsmp)->lsm_layout_gen = 0; + atomic_set(&lsm->lsm_refc, 1); + spin_lock_init(&lsm->lsm_lock); + lsm->lsm_magic = magic; + lsm->lsm_stripe_count = stripe_count; + lsm->lsm_maxbytes = LUSTRE_EXT3_STRIPE_MAXBYTES * stripe_count; + lsm->lsm_pattern = pattern; + lsm->lsm_pool_name[0] = '\0'; + lsm->lsm_layout_gen = 0; if (stripe_count > 0) - (*lsmp)->lsm_oinfo[0]->loi_ost_idx = ~0; + lsm->lsm_oinfo[0]->loi_ost_idx = ~0; for (i = 0; i < stripe_count; i++) - loi_init((*lsmp)->lsm_oinfo[i]); + loi_init(lsm->lsm_oinfo[i]); - return lsm_size; + return lsm; } int lov_free_memmd(struct lov_stripe_md **lsmp) @@ -242,56 +242,34 @@ int lov_free_memmd(struct lov_stripe_md **lsmp) /* Unpack LOV object metadata from disk storage. It is packed in LE byte * order and is opaque to the networking layer. */ -int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp, - struct lov_mds_md *lmm, int lmm_bytes) +struct lov_stripe_md *lov_unpackmd(struct lov_obd *lov, struct lov_mds_md *lmm, + size_t lmm_size) { - struct obd_device *obd = class_exp2obd(exp); - struct lov_obd *lov = &obd->u.lov; - int rc = 0, lsm_size; - __u16 stripe_count; - __u32 magic; - __u32 pattern; - - /* If passed an MDS struct use values from there, otherwise defaults */ - if (lmm) { - rc = lov_verify_lmm(lmm, lmm_bytes, &stripe_count); - if (rc) - return rc; - magic = le32_to_cpu(lmm->lmm_magic); - pattern = le32_to_cpu(lmm->lmm_pattern); - } else { - magic = LOV_MAGIC; - stripe_count = lov_get_stripecnt(lov, magic, 0); - pattern = LOV_PATTERN_RAID0; - } + struct lov_stripe_md *lsm; + u16 stripe_count; + u32 pattern; + u32 magic; + int rc; - /* If we aren't passed an lsmp struct, we just want the size */ - if (!lsmp) { - /* XXX LOV STACKING call into osc for sizes */ - LBUG(); - return lov_stripe_md_size(stripe_count); - } - /* If we are passed an allocated struct but nothing to unpack, free */ - if (*lsmp && !lmm) { - lov_free_memmd(lsmp); - return 0; - } + rc = lov_verify_lmm(lmm, lmm_size, &stripe_count); + if (rc) + return ERR_PTR(rc); - lsm_size = lov_alloc_memmd(lsmp, stripe_count, pattern, magic); - if (lsm_size < 0) - return lsm_size; + magic = le32_to_cpu(lmm->lmm_magic); + pattern = le32_to_cpu(lmm->lmm_pattern); - /* If we are passed a pointer but nothing to unpack, we only alloc */ - if (!lmm) - return lsm_size; + lsm = lov_lsm_alloc(stripe_count, pattern, magic); + if (IS_ERR(lsm)) + return lsm; - rc = lsm_op_find(magic)->lsm_unpackmd(lov, *lsmp, lmm); + LASSERT(lsm_op_find(magic)); + rc = lsm_op_find(magic)->lsm_unpackmd(lov, lsm, lmm); if (rc) { - lov_free_memmd(lsmp); - return rc; + lov_free_memmd(&lsm); + return ERR_PTR(rc); } - return lsm_size; + return lsm; } /* Retrieve object striping information. diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c index 4c30ab6..c620f5c 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_request.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c @@ -420,9 +420,6 @@ static int mdc_get_lustre_md(struct obd_export *exp, md->body = req_capsule_server_get(pill, &RMF_MDT_BODY); if (md->body->mbo_valid & OBD_MD_FLEASIZE) { - int lmmsize; - struct lov_mds_md *lmm; - if (!S_ISREG(md->body->mbo_mode)) { CDEBUG(D_INFO, "OBD_MD_FLEASIZE set, should be a regular file, but is not\n"); @@ -436,17 +433,15 @@ static int mdc_get_lustre_md(struct obd_export *exp, rc = -EPROTO; goto out; } - lmmsize = md->body->mbo_eadatasize; - lmm = req_capsule_server_sized_get(pill, &RMF_MDT_MD, lmmsize); - if (!lmm) { + + md->layout.lb_len = md->body->mbo_eadatasize; + md->layout.lb_buf = req_capsule_server_sized_get(pill, + &RMF_MDT_MD, + md->layout.lb_len); + if (!md->layout.lb_buf) { rc = -EPROTO; goto out; } - - rc = obd_unpackmd(dt_exp, &md->lsm, lmm, lmmsize); - if (rc < 0) - goto out; - } else if (md->body->mbo_valid & OBD_MD_FLDIREA) { int lmvsize; struct lov_mds_md *lmv; @@ -509,8 +504,6 @@ static int mdc_get_lustre_md(struct obd_export *exp, #ifdef CONFIG_FS_POSIX_ACL posix_acl_release(md->posix_acl); #endif - if (md->lsm) - obd_free_memmd(dt_exp, &md->lsm); } return rc; } -- 1.7.1
