From dff37ca97a02b5344fe7b119a4157002c8968af2 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Thu, 10 Nov 2016 12:30:32 -0500 Subject: [PATCH] staging: lustre: obd: rename obd_unpackmd() to md_unpackmd() obd_unpackmd() is only implemented by LMV so move it from OBD operations to OBD MD operations and update the prototype to reflex the actual usage. Remove the unused function obd_free_memmd(). Signed-off-by: John L. Hammond Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5814 Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/13737 Reviewed-by: James Simmons Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman --- .../lustre/lustre/include/lustre_lmv.h | 13 +---- drivers/staging/lustre/lustre/include/obd.h | 5 +- .../staging/lustre/lustre/include/obd_class.h | 51 +++++++------------ .../staging/lustre/lustre/lmv/lmv_internal.h | 3 -- drivers/staging/lustre/lustre/lmv/lmv_obd.c | 25 +++------ .../staging/lustre/lustre/mdc/mdc_request.c | 13 +++-- 6 files changed, 33 insertions(+), 77 deletions(-) diff --git a/drivers/staging/lustre/lustre/include/lustre_lmv.h b/drivers/staging/lustre/lustre/include/lustre_lmv.h index d7f7afa8dfa7..5aa3645e64dc 100644 --- a/drivers/staging/lustre/lustre/include/lustre_lmv.h +++ b/drivers/staging/lustre/lustre/include/lustre_lmv.h @@ -76,18 +76,7 @@ lsm_md_eq(const struct lmv_stripe_md *lsm1, const struct lmv_stripe_md *lsm2) union lmv_mds_md; -int lmv_unpack_md(struct obd_export *exp, struct lmv_stripe_md **lsmp, - const union lmv_mds_md *lmm, int stripe_count); - -static inline int lmv_alloc_memmd(struct lmv_stripe_md **lsmp, int stripe_count) -{ - return lmv_unpack_md(NULL, lsmp, NULL, stripe_count); -} - -static inline void lmv_free_memmd(struct lmv_stripe_md *lsm) -{ - lmv_unpack_md(NULL, &lsm, NULL, 0); -} +void lmv_free_memmd(struct lmv_stripe_md *lsm); static inline void lmv1_le_to_cpu(struct lmv_mds_md_v1 *lmv_dst, const struct lmv_mds_md_v1 *lmv_src) diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index 1be13a033bce..0f6e8f66e6cd 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -784,9 +784,6 @@ struct obd_ops { struct obd_statfs *osfs, __u64 max_age, __u32 flags); int (*statfs_async)(struct obd_export *exp, struct obd_info *oinfo, __u64 max_age, struct ptlrpc_request_set *set); - int (*unpackmd)(struct obd_export *exp, - struct lov_stripe_md **mem_tgt, - struct lov_mds_md *disk_src, int disk_len); int (*create)(const struct lu_env *env, struct obd_export *exp, struct obdo *oa); int (*destroy)(const struct lu_env *env, struct obd_export *exp, @@ -954,6 +951,8 @@ struct md_ops { int (*revalidate_lock)(struct obd_export *, struct lookup_intent *, struct lu_fid *, __u64 *bits); + int (*unpackmd)(struct obd_export *exp, struct lmv_stripe_md **plsm, + const union lmv_mds_md *lmv, size_t lmv_size); /* * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h index 3beb699940d9..01cd4893001f 100644 --- a/drivers/staging/lustre/lustre/include/obd_class.h +++ b/drivers/staging/lustre/lustre/include/obd_class.h @@ -609,39 +609,6 @@ obd_process_config(struct obd_device *obd, int datalen, void *data) return rc; } -/* Unpack an MD struct from disk to in-memory format. - * Returns +ve size of unpacked MD (0 for free), or -ve error. - * - * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL). - * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed. - * If @*mem_tgt == NULL, it will be allocated - */ -static inline int obd_unpackmd(struct obd_export *exp, - struct lov_stripe_md **mem_tgt, - struct lov_mds_md *disk_src, - int disk_len) -{ - int rc; - - EXP_CHECK_DT_OP(exp, unpackmd); - EXP_COUNTER_INCREMENT(exp, unpackmd); - - rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len); - return rc; -} - -static inline int obd_free_memmd(struct obd_export *exp, - struct lov_stripe_md **mem_tgt) -{ - int rc; - - LASSERT(mem_tgt); - LASSERT(*mem_tgt); - rc = obd_unpackmd(exp, mem_tgt, NULL, 0); - *mem_tgt = NULL; - return rc; -} - static inline int obd_create(const struct lu_env *env, struct obd_export *exp, struct obdo *obdo) { @@ -1507,6 +1474,24 @@ static inline int md_get_fid_from_lsm(struct obd_export *exp, return rc; } +/* Unpack an MD struct from disk to in-memory format. + * Returns +ve size of unpacked MD (0 for free), or -ve error. + * + * If *plsm != NULL and lmm == NULL then *lsm will be freed. + * If *plsm == NULL then it will be allocated. + */ +static inline int md_unpackmd(struct obd_export *exp, + struct lmv_stripe_md **plsm, + const union lmv_mds_md *lmm, size_t lmm_size) +{ + int rc; + + EXP_CHECK_MD_OP(exp, unpackmd); + EXP_MD_COUNTER_INCREMENT(exp, unpackmd); + rc = MDP(exp->exp_obd, unpackmd)(exp, plsm, lmm, lmm_size); + return rc; +} + /* OBD Metadata Support */ int obd_init_caches(void); diff --git a/drivers/staging/lustre/lustre/lmv/lmv_internal.h b/drivers/staging/lustre/lustre/lmv/lmv_internal.h index 52b03745ac19..12731a17e263 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_internal.h +++ b/drivers/staging/lustre/lustre/lmv/lmv_internal.h @@ -54,9 +54,6 @@ int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds); int lmv_fid_alloc(const struct lu_env *env, struct obd_export *exp, struct lu_fid *fid, struct md_op_data *op_data); -int lmv_unpack_md(struct obd_export *exp, struct lmv_stripe_md **lsmp, - const union lmv_mds_md *lmm, int stripe_count); - int lmv_revalidate_slaves(struct obd_export *exp, const struct lmv_stripe_md *lsm, ldlm_blocking_callback cb_blocking, diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c index 04f0b7d57dfb..1b25cb659086 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c +++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c @@ -2804,8 +2804,8 @@ static int lmv_unpack_md_v1(struct obd_export *exp, struct lmv_stripe_md *lsm, return rc; } -int lmv_unpack_md(struct obd_export *exp, struct lmv_stripe_md **lsmp, - const union lmv_mds_md *lmm, int stripe_count) +static int lmv_unpackmd(struct obd_export *exp, struct lmv_stripe_md **lsmp, + const union lmv_mds_md *lmm, size_t lmm_size) { struct lmv_stripe_md *lsm; bool allocated = false; @@ -2834,17 +2834,6 @@ int lmv_unpack_md(struct obd_export *exp, struct lmv_stripe_md **lsmp, return 0; } - /* Alloc memmd */ - if (!lsm && !lmm) { - lsm_size = lmv_stripe_md_size(stripe_count); - lsm = libcfs_kvzalloc(lsm_size, GFP_NOFS); - if (!lsm) - return -ENOMEM; - lsm->lsm_md_stripe_count = stripe_count; - *lsmp = lsm; - return 0; - } - if (le32_to_cpu(lmm->lmv_magic) == LMV_MAGIC_STRIPE) return -EPERM; @@ -2892,14 +2881,12 @@ int lmv_unpack_md(struct obd_export *exp, struct lmv_stripe_md **lsmp, } return lsm_size; } -EXPORT_SYMBOL(lmv_unpack_md); -static int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp, - struct lov_mds_md *lmm, int disk_len) +void lmv_free_memmd(struct lmv_stripe_md *lsm) { - return lmv_unpack_md(exp, (struct lmv_stripe_md **)lsmp, - (union lmv_mds_md *)lmm, disk_len); + lmv_unpackmd(NULL, &lsm, NULL, 0); } +EXPORT_SYMBOL(lmv_free_memmd); static int lmv_cancel_unused(struct obd_export *exp, const struct lu_fid *fid, ldlm_policy_data_t *policy, enum ldlm_mode mode, @@ -3204,7 +3191,6 @@ static struct obd_ops lmv_obd_ops = { .statfs = lmv_statfs, .get_info = lmv_get_info, .set_info_async = lmv_set_info_async, - .unpackmd = lmv_unpackmd, .notify = lmv_notify, .get_uuid = lmv_get_uuid, .iocontrol = lmv_iocontrol, @@ -3240,6 +3226,7 @@ static struct md_ops lmv_md_ops = { .intent_getattr_async = lmv_intent_getattr_async, .revalidate_lock = lmv_revalidate_lock, .get_fid_from_lsm = lmv_get_fid_from_lsm, + .unpackmd = lmv_unpackmd, }; static int __init lmv_init(void) diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c index 892195c85cae..a021704d3aa9 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_request.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c @@ -443,8 +443,8 @@ static int mdc_get_lustre_md(struct obd_export *exp, goto out; } } else if (md->body->mbo_valid & OBD_MD_FLDIREA) { - int lmvsize; - struct lov_mds_md *lmv; + const union lmv_mds_md *lmv; + size_t lmv_size; if (!S_ISDIR(md->body->mbo_mode)) { CDEBUG(D_INFO, @@ -453,22 +453,21 @@ static int mdc_get_lustre_md(struct obd_export *exp, goto out; } - if (md->body->mbo_eadatasize == 0) { + lmv_size = md->body->mbo_eadatasize; + if (!lmv_size) { CDEBUG(D_INFO, "OBD_MD_FLDIREA is set, but eadatasize 0\n"); return -EPROTO; } if (md->body->mbo_valid & OBD_MD_MEA) { - lmvsize = md->body->mbo_eadatasize; lmv = req_capsule_server_sized_get(pill, &RMF_MDT_MD, - lmvsize); + lmv_size); if (!lmv) { rc = -EPROTO; goto out; } - rc = obd_unpackmd(md_exp, (void *)&md->lmv, lmv, - lmvsize); + rc = md_unpackmd(md_exp, &md->lmv, lmv, lmv_size); if (rc < 0) goto out;