From 4ee5a460a34fe0ddf9738aedea991b329e3da189 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Wed, 4 Jan 2017 21:14:36 -0800 Subject: [PATCH] Staging: lustre: lustre: lmv: Compress return logic into one line. Simplify return logic to avoid unnecessary variable assignments. These issues were detected using Coccinelle and the following semantic patch: @@ local idexpression ret; expression e; @@ -ret = +return e; -return ret; Signed-off-by: Gustavo A. R. Silva Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/lmv/lmv_obd.c | 58 ++++++++--------------------- 1 file changed, 16 insertions(+), 42 deletions(-) diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c index f124f6c0..76a0306 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c +++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c @@ -771,7 +771,6 @@ static int lmv_hsm_ct_unregister(struct lmv_obd *lmv, unsigned int cmd, int len, struct lustre_kernelcomm *lk, void __user *uarg) { - int rc = 0; __u32 i; /* unregister request (call from llapi_hsm_copytool_fini) */ @@ -791,9 +790,7 @@ static int lmv_hsm_ct_unregister(struct lmv_obd *lmv, unsigned int cmd, int len, * Unreached coordinators will get EPIPE on next requests * and will unregister automatically. */ - rc = libcfs_kkuc_group_rem(lk->lk_uid, lk->lk_group); - - return rc; + return libcfs_kkuc_group_rem(lk->lk_uid, lk->lk_group); } static int lmv_hsm_ct_register(struct lmv_obd *lmv, unsigned int cmd, int len, @@ -1425,8 +1422,7 @@ static int lmv_getstatus(struct obd_export *exp, if (rc) return rc; - rc = md_getstatus(lmv->tgts[0]->ltd_exp, fid); - return rc; + return md_getstatus(lmv->tgts[0]->ltd_exp, fid); } static int lmv_getxattr(struct obd_export *exp, const struct lu_fid *fid, @@ -1447,10 +1443,8 @@ static int lmv_getxattr(struct obd_export *exp, const struct lu_fid *fid, if (IS_ERR(tgt)) return PTR_ERR(tgt); - rc = md_getxattr(tgt->ltd_exp, fid, valid, name, input, + return md_getxattr(tgt->ltd_exp, fid, valid, name, input, input_size, output_size, flags, request); - - return rc; } static int lmv_setxattr(struct obd_export *exp, const struct lu_fid *fid, @@ -1472,11 +1466,9 @@ static int lmv_setxattr(struct obd_export *exp, const struct lu_fid *fid, if (IS_ERR(tgt)) return PTR_ERR(tgt); - rc = md_setxattr(tgt->ltd_exp, fid, valid, name, input, + return md_setxattr(tgt->ltd_exp, fid, valid, name, input, input_size, output_size, flags, suppgid, request); - - return rc; } static int lmv_getattr(struct obd_export *exp, struct md_op_data *op_data, @@ -1500,9 +1492,7 @@ static int lmv_getattr(struct obd_export *exp, struct md_op_data *op_data, return 0; } - rc = md_getattr(tgt->ltd_exp, op_data, request); - - return rc; + return md_getattr(tgt->ltd_exp, op_data, request); } static int lmv_null_inode(struct obd_export *exp, const struct lu_fid *fid) @@ -1549,8 +1539,7 @@ static int lmv_close(struct obd_export *exp, struct md_op_data *op_data, return PTR_ERR(tgt); CDEBUG(D_INODE, "CLOSE "DFID"\n", PFID(&op_data->op_fid1)); - rc = md_close(tgt->ltd_exp, op_data, mod, request); - return rc; + return md_close(tgt->ltd_exp, op_data, mod, request); } /** @@ -1743,10 +1732,8 @@ lmv_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo, CDEBUG(D_INODE, "ENQUEUE '%s' on " DFID " -> mds #%u\n", LL_IT2STR(it), PFID(&op_data->op_fid1), tgt->ltd_idx); - rc = md_enqueue(tgt->ltd_exp, einfo, policy, it, op_data, lockh, + return md_enqueue(tgt->ltd_exp, einfo, policy, it, op_data, lockh, extra_lock_flags); - - return rc; } static int @@ -1894,9 +1881,7 @@ static int lmv_link(struct obd_export *exp, struct md_op_data *op_data, if (rc != 0) return rc; - rc = md_link(tgt->ltd_exp, op_data, request); - - return rc; + return md_link(tgt->ltd_exp, op_data, request); } static int lmv_rename(struct obd_export *exp, struct md_op_data *op_data, @@ -2109,8 +2094,7 @@ static int lmv_sync(struct obd_export *exp, const struct lu_fid *fid, if (IS_ERR(tgt)) return PTR_ERR(tgt); - rc = md_sync(tgt->ltd_exp, fid, request); - return rc; + return md_sync(tgt->ltd_exp, fid, request); } /** @@ -2428,17 +2412,14 @@ static int lmv_read_page(struct obd_export *exp, struct md_op_data *op_data, return rc; if (unlikely(lsm)) { - rc = lmv_read_striped_page(exp, op_data, cb_op, offset, ppage); - return rc; + return lmv_read_striped_page(exp, op_data, cb_op, offset, ppage); } tgt = lmv_find_target(lmv, &op_data->op_fid1); if (IS_ERR(tgt)) return PTR_ERR(tgt); - rc = md_read_page(tgt->ltd_exp, op_data, cb_op, offset, ppage); - - return rc; + return md_read_page(tgt->ltd_exp, op_data, cb_op, offset, ppage); } /** @@ -2922,13 +2903,11 @@ static int lmv_set_lock_data(struct obd_export *exp, { struct lmv_obd *lmv = &exp->exp_obd->u.lmv; struct lmv_tgt_desc *tgt = lmv->tgts[0]; - int rc; if (!tgt || !tgt->ltd_exp) return -EINVAL; - rc = md_set_lock_data(tgt->ltd_exp, lockh, data, bits); - return rc; + return md_set_lock_data(tgt->ltd_exp, lockh, data, bits); } static enum ldlm_mode lmv_lock_match(struct obd_export *exp, __u64 flags, @@ -3050,8 +3029,7 @@ static int lmv_intent_getattr_async(struct obd_export *exp, if (IS_ERR(tgt)) return PTR_ERR(tgt); - rc = md_intent_getattr_async(tgt->ltd_exp, minfo, einfo); - return rc; + return md_intent_getattr_async(tgt->ltd_exp, minfo, einfo); } static int lmv_revalidate_lock(struct obd_export *exp, struct lookup_intent *it, @@ -3070,8 +3048,7 @@ static int lmv_revalidate_lock(struct obd_export *exp, struct lookup_intent *it, if (IS_ERR(tgt)) return PTR_ERR(tgt); - rc = md_revalidate_lock(tgt->ltd_exp, it, fid, bits); - return rc; + return md_revalidate_lock(tgt->ltd_exp, it, fid, bits); } static int @@ -3113,8 +3090,7 @@ static int lmv_quotactl(struct obd_device *unused, struct obd_export *exp, } if (oqctl->qc_cmd != Q_GETOQUOTA) { - rc = obd_quotactl(tgt->ltd_exp, oqctl); - return rc; + return obd_quotactl(tgt->ltd_exp, oqctl); } for (i = 0; i < lmv->desc.ld_tgt_count; i++) { @@ -3234,13 +3210,11 @@ static struct md_ops lmv_md_ops = { static int __init lmv_init(void) { struct lprocfs_static_vars lvars; - int rc; lprocfs_lmv_init_vars(&lvars); - rc = class_register_type(&lmv_obd_ops, &lmv_md_ops, + return class_register_type(&lmv_obd_ops, &lmv_md_ops, LUSTRE_LMV_NAME, NULL); - return rc; } static void lmv_exit(void) -- 2.7.4