quotafmt_test.c

来自「lustre 1.6.5 source code」· C语言 代码 · 共 509 行 · 第 1/2 页

                GOTO(out, rc);
        }
      out:
        put_rand_dquot(dquot);
        RETURN(rc);
}

static int quotfmt_test_3(struct lustre_quota_info *lqi)
{
        struct lustre_dquot *dquot;
        int i = 0, rc = 0;
        ENTRY;

        dquot = get_rand_dquot(lqi);
        if (dquot == NULL)
                RETURN(-ENOMEM);
      repeat:
        clear_bit(DQ_FAKE_B, &dquot->dq_flags);
        /* write a new dquot */
        rc = lustre_commit_dquot(dquot);
        if (rc) {
                CERROR("commit dquot failed! (rc:%d)\n", rc);
                GOTO(out, rc);
        }
        dquot->dq_off = 0;
        memset(&dquot->dq_dqb, 0, sizeof(dquot->dq_dqb));

        /* check if this dquot is on disk now */
        rc = lustre_read_dquot(dquot);
        if (rc) {
                CERROR("read dquot failed! (rc:%d)\n", rc);
                GOTO(out, rc);
        }
        if (!dquot->dq_off || test_bit(DQ_FAKE_B, &dquot->dq_flags)) {
                CERROR("the dquot isn't committed\n");
                GOTO(out, rc = -EINVAL);
        }

        /* remove this dquot */
        set_bit(DQ_FAKE_B, &dquot->dq_flags);
        dquot->dq_dqb.dqb_curspace = 0;
        dquot->dq_dqb.dqb_curinodes = 0;
        rc = lustre_commit_dquot(dquot);
        if (rc) {
                CERROR("remove dquot failed! (rc:%d)\n", rc);
                GOTO(out, rc);
        }

        /* check if the dquot is really removed */
        clear_bit(DQ_FAKE_B, &dquot->dq_flags);
        dquot->dq_off = 0;
        rc = lustre_read_dquot(dquot);
        if (rc) {
                CERROR("read dquot failed! (rc:%d)\n", rc);
                GOTO(out, rc);
        }
        if (!test_bit(DQ_FAKE_B, &dquot->dq_flags) || dquot->dq_off) {
                CERROR("the dquot isn't removed!\n");
                GOTO(out, rc = -EINVAL);
        }

        /* check if this dquot can be write again */
        if (++i < 2)
                goto repeat;

        print_quota_info(lqi);

      out:
        put_rand_dquot(dquot);
        RETURN(rc);
}

static int quotfmt_test_4(struct lustre_quota_info *lqi)
{
        int i, rc = 0;
        ENTRY;

        for (i = 0; i < 30000; i++) {
                rc = write_check_dquot(lqi);
                if (rc) {
                        CERROR("write/check dquot failed at %d! (rc:%d)\n",
                               i, rc);
                        break;
                }
        }
        print_quota_info(lqi);
        RETURN(rc);
}

static int quotfmt_test_5(struct lustre_quota_info *lqi)
{
#ifndef KERNEL_SUPPORTS_QUOTA_READ 
        int i, rc = 0;

        for (i = USRQUOTA; i < MAXQUOTAS && !rc; i++) {
                struct list_head list;
                struct dquot_id *dqid, *tmp;

                INIT_LIST_HEAD(&list);
                rc = lustre_get_qids(lqi->qi_files[i], NULL, i, &list);
                if (rc) {
                        CERROR("%s get all %ss (rc:%d):\n",
                               rc ? "error" : "success",
                               i == USRQUOTA ? "uid" : "gid", rc);
                }
                list_for_each_entry_safe(dqid, tmp, &list, di_link) {
                        list_del_init(&dqid->di_link);
                        if (rc == 0)
                                printk("%d ", dqid->di_id);
                        kfree(dqid);
                }
                printk("\n");
        }
        return rc;
#else
        CWARN("kernel supports quota_read OR kernel version >= 2.6.12, test skipped\n");
        return 0;
#endif
}

static int quotfmt_run_tests(struct obd_device *obd, struct obd_device *tgt)
{
        struct lvfs_run_ctxt saved;
        struct lustre_quota_info *lqi = NULL;
        int rc = 0;
        ENTRY;

        OBD_ALLOC(lqi, sizeof(*lqi));
        if (lqi == NULL) {
                CERROR("not enough memory\n");
                RETURN(-ENOMEM);
        }

        CWARN("=== Initialize quotafile test\n");
        rc = quotfmt_initialize(lqi, tgt, &saved);
        if (rc)
                GOTO(out, rc);

        CWARN("=== test  1: check quota header\n");
        rc = quotfmt_test_1(lqi);
        if (rc) {
                CERROR("check quota header failed! (rc:%d)\n", rc);
                GOTO(out, rc);
        }

        CWARN("=== test  2: write/read quota info\n");
        rc = quotfmt_test_2(lqi);
        if (rc) {
                CERROR("write/read quota info failed! (rc:%d)\n", rc);
                GOTO(out, rc);
        }

        CWARN("=== test  3: write/remove dquot\n");
        rc = quotfmt_test_3(lqi);
        if (rc) {
                CERROR("write/remove dquot failed! (rc:%d)\n", rc);
                GOTO(out, rc);
        }

        CWARN("=== test  4: write/read 30000 dquot\n");
        rc = quotfmt_test_4(lqi);
        if (rc) {
                CERROR("write/read 30000 dquot failed\n");
                GOTO(out, rc);
        }

        CWARN("=== test 5: walk through quota file to get all ids\n");
        rc = quotfmt_test_5(lqi);
        if (rc) {
                CERROR("walk through quota file failed\n");
                GOTO(out, rc);
        }

      out:
        CWARN("=== Finalize quotafile test\n");
        rc = quotfmt_finalize(lqi, tgt, &saved);
        OBD_FREE(lqi, sizeof(*lqi));
        RETURN(rc);
}

static int quotfmt_test_cleanup(struct obd_device *obd)
{
        ENTRY;
        lprocfs_obd_cleanup(obd);
        RETURN(0);
}

static int quotfmt_test_setup(struct obd_device *obd, obd_count len, void *buf)
{
        struct lprocfs_static_vars lvars;
        struct lustre_cfg *lcfg = buf;
        struct obd_device *tgt;
        int rc;
        ENTRY;

        if (lcfg->lcfg_bufcount < 1) {
                CERROR("requires a mds OBD name\n");
                RETURN(-EINVAL);
        }

        tgt = class_name2obd(lustre_cfg_string(lcfg, 1));
        if (!tgt || !tgt->obd_attached || !tgt->obd_set_up) {
                CERROR("target device not attached or not set up (%s)\n",
                       lustre_cfg_string(lcfg, 1));
                RETURN(-EINVAL);
        }

        rc = quotfmt_run_tests(obd, tgt);
        if (rc)
                quotfmt_test_cleanup(obd);

        lprocfs_quotfmt_test_init_vars(&lvars);
        lprocfs_obd_setup(obd, lvars.obd_vars);

        RETURN(rc);
}

static struct obd_ops quotfmt_obd_ops = {
        .o_owner = THIS_MODULE,
        .o_setup = quotfmt_test_setup,
        .o_cleanup = quotfmt_test_cleanup,
};

#ifdef LPROCFS
static struct lprocfs_vars lprocfs_quotfmt_test_obd_vars[] = { {0} };
static struct lprocfs_vars lprocfs_quotfmt_test_module_vars[] = { {0} };

void lprocfs_quotfmt_test_init_vars(struct lprocfs_static_vars *lvars)
{
    lvars->module_vars  = lprocfs_quotfmt_test_module_vars;
    lvars->obd_vars     = lprocfs_quotfmt_test_obd_vars;
}
#endif
static int __init quotfmt_test_init(void)
{
        struct lprocfs_static_vars lvars;

        lprocfs_quotfmt_test_init_vars(&lvars);
        return class_register_type(&quotfmt_obd_ops, lvars.module_vars,
                                   "quotfmt_test");
}

static void __exit quotfmt_test_exit(void)
{
        class_unregister_type("quotfmt_test");
}

MODULE_AUTHOR("Cluster File Systems, Inc. <[e-mail]>");
MODULE_DESCRIPTION("administrative quotafile test module");
MODULE_LICENSE("GPL");

module_init(quotfmt_test_init);
module_exit(quotfmt_test_exit);