1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/lvfs/quotafmt_test.c
38 * No redistribution or use is permitted outside of Sun Microsystems, Inc.
40 * Kernel module to test lustre administrative quotafile format APIs
41 * from the OBD setup function
45 # define EXPORT_SYMTAB
48 #include <linux/module.h>
49 #include <linux/init.h>
50 #include <linux/errno.h>
52 #include <linux/kernel.h>
53 #include <linux/random.h>
55 #include <lustre_quota.h>
56 #include <obd_class.h>
58 #include "lustre_quota_fmt.h"
60 char *test_quotafile[2] = { "usrquota_test", "grpquota_test" };
62 static int quotfmt_initialize(struct lustre_quota_info *lqi,
63 struct obd_device *tgt,
64 struct lvfs_run_ctxt *saved)
66 struct lustre_disk_dqheader dqhead;
67 static const uint quota_magics[] = LUSTRE_INITQMAGICS;
68 static const uint quota_versions[] = LUSTRE_INITQVERSIONS;
70 struct inode *parent_inode = tgt->obd_lvfs_ctxt.pwd->d_inode;
76 push_ctxt(saved, &tgt->obd_lvfs_ctxt, NULL);
78 for (i = 0; i < MAXQUOTAS; i++) {
80 char *name = test_quotafile[i];
81 int namelen = strlen(name);
83 /* remove the stale test quotafile */
84 LOCK_INODE_MUTEX(parent_inode);
85 de = lookup_one_len(name, tgt->obd_lvfs_ctxt.pwd, namelen);
86 if (!IS_ERR(de) && de->d_inode)
87 ll_vfs_unlink(parent_inode, de,
88 tgt->obd_lvfs_ctxt.pwdmnt);
91 UNLOCK_INODE_MUTEX(parent_inode);
93 /* create quota file */
94 fp = filp_open(name, O_CREAT | O_EXCL, 0644);
97 CERROR("error creating test quotafile %s (rc = %d)\n",
101 lqi->qi_files[i] = fp;
103 /* write quotafile header */
104 dqhead.dqh_magic = cpu_to_le32(quota_magics[i]);
105 dqhead.dqh_version = cpu_to_le32(quota_versions[i]);
106 size = fp->f_op->write(fp, (char *)&dqhead,
107 sizeof(struct lustre_disk_dqheader),
109 if (size != sizeof(struct lustre_disk_dqheader)) {
110 CERROR("error writing quoafile header %s (rc = %d)\n",
120 static int quotfmt_finalize(struct lustre_quota_info *lqi,
121 struct obd_device *tgt, struct lvfs_run_ctxt *saved)
124 struct inode *parent_inode = tgt->obd_lvfs_ctxt.pwd->d_inode;
128 for (i = 0; i < MAXQUOTAS; i++) {
129 char *name = test_quotafile[i];
130 int namelen = strlen(name);
132 if (lqi->qi_files[i] == NULL)
135 /* close quota file */
136 filp_close(lqi->qi_files[i], 0);
138 /* unlink quota file */
139 LOCK_INODE_MUTEX(parent_inode);
141 de = lookup_one_len(name, tgt->obd_lvfs_ctxt.pwd, namelen);
142 if (IS_ERR(de) || de->d_inode == NULL) {
143 rc = IS_ERR(de) ? PTR_ERR(de) : -ENOENT;
144 CERROR("error lookup quotafile %s (rc = %d)\n",
149 rc = ll_vfs_unlink(parent_inode, de, tgt->obd_lvfs_ctxt.pwdmnt);
151 CERROR("error unlink quotafile %s (rc = %d)\n",
156 UNLOCK_INODE_MUTEX(parent_inode);
159 pop_ctxt(saved, &tgt->obd_lvfs_ctxt, NULL);
163 static int quotfmt_test_1(struct lustre_quota_info *lqi)
168 for (i = 0; i < MAXQUOTAS; i++) {
169 if (!lustre_check_quota_file(lqi, i))
175 static void print_quota_info(struct lustre_quota_info *lqi)
178 struct lustre_mem_dqinfo *dqinfo;
181 for (i = 0; i < MAXQUOTAS; i++) {
182 dqinfo = &lqi->qi_info[i];
183 CDEBUG(D_INFO, "%s quota info:\n", i == USRQUOTA ? "user " : "group");
184 CDEBUG(D_INFO, "dqi_bgrace(%u) dqi_igrace(%u) dqi_flags(%lu) dqi_blocks(%u) "
185 "dqi_free_blk(%u) dqi_free_entry(%u)\n",
186 dqinfo->dqi_bgrace, dqinfo->dqi_igrace, dqinfo->dqi_flags,
187 dqinfo->dqi_blocks, dqinfo->dqi_free_blk,
188 dqinfo->dqi_free_entry);
193 static int quotfmt_test_2(struct lustre_quota_info *lqi)
198 for (i = 0; i < MAXQUOTAS; i++) {
199 struct lustre_mem_dqinfo dqinfo;
201 rc = lustre_init_quota_info(lqi, i);
203 CERROR("init quotainfo(%d) failed! (rc:%d)\n", i, rc);
206 memcpy(&dqinfo, &lqi->qi_info[i], sizeof(dqinfo));
208 rc = lustre_read_quota_info(lqi, i);
210 CERROR("read quotainfo(%d) failed! (rc:%d)\n", i, rc);
214 if (memcmp(&dqinfo, &lqi->qi_info[i], sizeof(dqinfo))) {
222 static struct lustre_dquot *get_rand_dquot(struct lustre_quota_info *lqi)
224 struct lustre_dquot *dquot;
227 OBD_ALLOC(dquot, sizeof(*dquot));
231 get_random_bytes(&rand, sizeof(rand));
235 dquot->dq_info = lqi;
236 dquot->dq_id = rand % 1000 + 1;
237 dquot->dq_type = rand % MAXQUOTAS;
239 dquot->dq_dqb.dqb_bhardlimit = rand;
240 dquot->dq_dqb.dqb_bsoftlimit = rand / 2;
241 dquot->dq_dqb.dqb_curspace = rand / 3;
242 dquot->dq_dqb.dqb_ihardlimit = rand;
243 dquot->dq_dqb.dqb_isoftlimit = rand / 2;
244 dquot->dq_dqb.dqb_curinodes = rand / 3;
245 dquot->dq_dqb.dqb_btime = jiffies;
246 dquot->dq_dqb.dqb_itime = jiffies;
251 static void put_rand_dquot(struct lustre_dquot *dquot)
253 OBD_FREE(dquot, sizeof(*dquot));
256 static int write_check_dquot(struct lustre_quota_info *lqi)
258 struct lustre_dquot *dquot;
259 struct mem_dqblk dqblk;
263 dquot = get_rand_dquot(lqi);
267 /* for already exists entry, we set the dq_off by read_dquot */
268 rc = lustre_read_dquot(dquot);
270 CERROR("read dquot failed! (rc:%d)\n", rc);
274 clear_bit(DQ_FAKE_B, &dquot->dq_flags);
275 /* for already exists entry, we rewrite it */
276 rc = lustre_commit_dquot(dquot);
278 CERROR("commit dquot failed! (rc:%d)\n", rc);
281 memcpy(&dqblk, &dquot->dq_dqb, sizeof(dqblk));
282 memset(&dquot->dq_dqb, 0, sizeof(dqblk));
284 rc = lustre_read_dquot(dquot);
286 CERROR("read dquot failed! (rc:%d)\n", rc);
290 if (memcmp(&dqblk, &dquot->dq_dqb, sizeof(dqblk))) {
295 put_rand_dquot(dquot);
299 static int quotfmt_test_3(struct lustre_quota_info *lqi)
301 struct lustre_dquot *dquot;
305 dquot = get_rand_dquot(lqi);
309 clear_bit(DQ_FAKE_B, &dquot->dq_flags);
310 /* write a new dquot */
311 rc = lustre_commit_dquot(dquot);
313 CERROR("commit dquot failed! (rc:%d)\n", rc);
317 memset(&dquot->dq_dqb, 0, sizeof(dquot->dq_dqb));
319 /* check if this dquot is on disk now */
320 rc = lustre_read_dquot(dquot);
322 CERROR("read dquot failed! (rc:%d)\n", rc);
325 if (!dquot->dq_off || test_bit(DQ_FAKE_B, &dquot->dq_flags)) {
326 CERROR("the dquot isn't committed\n");
327 GOTO(out, rc = -EINVAL);
330 /* remove this dquot */
331 set_bit(DQ_FAKE_B, &dquot->dq_flags);
332 dquot->dq_dqb.dqb_curspace = 0;
333 dquot->dq_dqb.dqb_curinodes = 0;
334 rc = lustre_commit_dquot(dquot);
336 CERROR("remove dquot failed! (rc:%d)\n", rc);
340 /* check if the dquot is really removed */
341 clear_bit(DQ_FAKE_B, &dquot->dq_flags);
343 rc = lustre_read_dquot(dquot);
345 CERROR("read dquot failed! (rc:%d)\n", rc);
348 if (!test_bit(DQ_FAKE_B, &dquot->dq_flags) || dquot->dq_off) {
349 CERROR("the dquot isn't removed!\n");
350 GOTO(out, rc = -EINVAL);
353 /* check if this dquot can be write again */
357 print_quota_info(lqi);
360 put_rand_dquot(dquot);
364 static int quotfmt_test_4(struct lustre_quota_info *lqi)
369 for (i = 0; i < 30000; i++) {
370 rc = write_check_dquot(lqi);
372 CERROR("write/check dquot failed at %d! (rc:%d)\n",
377 print_quota_info(lqi);
381 static int quotfmt_test_5(struct lustre_quota_info *lqi)
383 #ifndef KERNEL_SUPPORTS_QUOTA_READ
386 for (i = USRQUOTA; i < MAXQUOTAS && !rc; i++) {
387 struct list_head list;
388 struct dquot_id *dqid, *tmp;
390 INIT_LIST_HEAD(&list);
391 rc = lustre_get_qids(lqi->qi_files[i], NULL, i, &list);
393 CERROR("%s get all %ss (rc:%d):\n",
394 rc ? "error" : "success",
395 i == USRQUOTA ? "uid" : "gid", rc);
397 list_for_each_entry_safe(dqid, tmp, &list, di_link) {
398 list_del_init(&dqid->di_link);
400 CDEBUG(D_INFO, "%d ", dqid->di_id);
403 CDEBUG(D_INFO, "\n");
407 CWARN("kernel supports quota_read OR kernel version >= 2.6.12, test skipped\n");
412 static int quotfmt_run_tests(struct obd_device *obd, struct obd_device *tgt)
414 struct lvfs_run_ctxt saved;
415 struct lustre_quota_info *lqi = NULL;
419 OBD_ALLOC(lqi, sizeof(*lqi));
421 CERROR("not enough memory\n");
425 CWARN("=== Initialize quotafile test\n");
426 rc = quotfmt_initialize(lqi, tgt, &saved);
430 CWARN("=== test 1: check quota header\n");
431 rc = quotfmt_test_1(lqi);
433 CERROR("check quota header failed! (rc:%d)\n", rc);
437 CWARN("=== test 2: write/read quota info\n");
438 rc = quotfmt_test_2(lqi);
440 CERROR("write/read quota info failed! (rc:%d)\n", rc);
444 CWARN("=== test 3: write/remove dquot\n");
445 rc = quotfmt_test_3(lqi);
447 CERROR("write/remove dquot failed! (rc:%d)\n", rc);
451 CWARN("=== test 4: write/read 30000 dquot\n");
452 rc = quotfmt_test_4(lqi);
454 CERROR("write/read 30000 dquot failed\n");
458 CWARN("=== test 5: walk through quota file to get all ids\n");
459 rc = quotfmt_test_5(lqi);
461 CERROR("walk through quota file failed\n");
466 CWARN("=== Finalize quotafile test\n");
467 rc = quotfmt_finalize(lqi, tgt, &saved);
468 OBD_FREE(lqi, sizeof(*lqi));
472 static int quotfmt_test_cleanup(struct obd_device *obd)
475 lprocfs_obd_cleanup(obd);
479 static int quotfmt_test_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
481 struct lprocfs_static_vars lvars;
482 struct obd_device *tgt;
486 if (lcfg->lcfg_bufcount < 1) {
487 CERROR("requires a mds OBD name\n");
491 tgt = class_name2obd(lustre_cfg_string(lcfg, 1));
492 if (!tgt || !tgt->obd_attached || !tgt->obd_set_up) {
493 CERROR("target device not attached or not set up (%s)\n",
494 lustre_cfg_string(lcfg, 1));
498 rc = quotfmt_run_tests(obd, tgt);
500 quotfmt_test_cleanup(obd);
502 lprocfs_quotfmt_test_init_vars(&lvars);
503 lprocfs_obd_setup(obd, lvars.obd_vars);
508 static struct obd_ops quotfmt_obd_ops = {
509 .o_owner = THIS_MODULE,
510 .o_setup = quotfmt_test_setup,
511 .o_cleanup = quotfmt_test_cleanup,
515 static struct lprocfs_vars lprocfs_quotfmt_test_obd_vars[] = { {0} };
516 static struct lprocfs_vars lprocfs_quotfmt_test_module_vars[] = { {0} };
518 void lprocfs_quotfmt_test_init_vars(struct lprocfs_static_vars *lvars)
520 lvars->module_vars = lprocfs_quotfmt_test_module_vars;
521 lvars->obd_vars = lprocfs_quotfmt_test_obd_vars;
524 static int __init quotfmt_test_init(void)
526 struct lprocfs_static_vars lvars;
528 lprocfs_quotfmt_test_init_vars(&lvars);
529 return class_register_type("fmt_obd_ops, NULL, lvars.module_vars,
530 "quotfmt_test", NULL);
533 static void __exit quotfmt_test_exit(void)
535 class_unregister_type("quotfmt_test");
538 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
539 MODULE_DESCRIPTION("administrative quotafile test module");
540 MODULE_LICENSE("GPL");
542 module_init(quotfmt_test_init);
543 module_exit(quotfmt_test_exit);