-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * version 2 along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA
*
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2011, 2013, Intel Corporation.
* Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * Author: Johann Lombardi <johann.lombardi@intel.com>
+ * Author: Niu Yawei <yawei.niu@intel.com>
*/
#define DEBUG_SUBSYSTEM S_LQUOTA
#include <lprocfs_status.h>
#include <obd.h>
#include <linux/seq_file.h>
-#include <lustre_fsfilt.h>
-
-#include "quota_internal.h"
-
-#ifdef HAVE_QUOTA_SUPPORT
+#include "lquota_internal.h"
#ifdef LPROCFS
-int lprocfs_quota_rd_bunit(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
-
- return snprintf(page, count, "%lu\n",
- obd->u.obt.obt_qctxt.lqc_bunit_sz);
-}
-EXPORT_SYMBOL(lprocfs_quota_rd_bunit);
-
-int lprocfs_quota_wr_bunit(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val % QUOTABLOCK_SIZE ||
- val <= obd->u.obt.obt_qctxt.lqc_btune_sz)
- return -EINVAL;
-
- obd->u.obt.obt_qctxt.lqc_bunit_sz = val;
- return count;
-}
-EXPORT_SYMBOL(lprocfs_quota_wr_bunit);
-
-int lprocfs_quota_rd_btune(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
-
- return snprintf(page, count, "%lu\n",
- obd->u.obt.obt_qctxt.lqc_btune_sz);
-}
-EXPORT_SYMBOL(lprocfs_quota_rd_btune);
-
-int lprocfs_quota_wr_btune(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val <= QUOTABLOCK_SIZE * MIN_QLIMIT || val % QUOTABLOCK_SIZE ||
- val >= obd->u.obt.obt_qctxt.lqc_bunit_sz)
- return -EINVAL;
-
- obd->u.obt.obt_qctxt.lqc_btune_sz = val;
- return count;
-}
-EXPORT_SYMBOL(lprocfs_quota_wr_btune);
-
-int lprocfs_quota_rd_iunit(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
-
- return snprintf(page, count, "%lu\n",
- obd->u.obt.obt_qctxt.lqc_iunit_sz);
-}
-EXPORT_SYMBOL(lprocfs_quota_rd_iunit);
-
-int lprocfs_quota_wr_iunit(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val <= obd->u.obt.obt_qctxt.lqc_itune_sz)
- return -EINVAL;
-
- obd->u.obt.obt_qctxt.lqc_iunit_sz = val;
- return count;
-}
-EXPORT_SYMBOL(lprocfs_quota_wr_iunit);
-
-int lprocfs_quota_rd_itune(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
-
- return snprintf(page, count, "%lu\n",
- obd->u.obt.obt_qctxt.lqc_itune_sz);
-}
-EXPORT_SYMBOL(lprocfs_quota_rd_itune);
-
-int lprocfs_quota_wr_itune(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val <= MIN_QLIMIT ||
- val >= obd->u.obt.obt_qctxt.lqc_iunit_sz)
- return -EINVAL;
-
- obd->u.obt.obt_qctxt.lqc_itune_sz = val;
- return count;
-}
-EXPORT_SYMBOL(lprocfs_quota_wr_itune);
-
-#define USER_QUOTA 1
-#define GROUP_QUOTA 2
-
-#define MAX_STYPE_SIZE 5
-
-int lprocfs_quota_rd_type(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- char stype[MAX_STYPE_SIZE + 1] = "";
- int oq_type;
- struct obd_device_target *obt;
-
- LASSERT(obd != NULL);
-
- obt = &obd->u.obt;
-
- /* Collect the needed information */
- oq_type = obd->u.obt.obt_qctxt.lqc_flags;
-
- /* Transform the collected data into a user-readable string */
- if (oq_type & LQC_USRQUOTA_FLAG)
- strcat(stype, "u");
- if (oq_type & LQC_GRPQUOTA_FLAG)
- strcat(stype, "g");
-
- strcat(stype, "3");
-
- return snprintf(page, count, "%s\n", stype);
-}
-EXPORT_SYMBOL(lprocfs_quota_rd_type);
-
-static int auto_quota_on(struct obd_device *obd, int type,
- struct super_block *sb, int is_master)
-{
- struct obd_quotactl *oqctl;
- struct lvfs_run_ctxt saved;
- int rc = 0, id;
- struct obd_device_target *obt;
- ENTRY;
-
- LASSERT(type == USRQUOTA || type == GRPQUOTA || type == UGQUOTA);
-
- obt = &obd->u.obt;
-
- OBD_ALLOC_PTR(oqctl);
- if (!oqctl)
- RETURN(-ENOMEM);
-
- if (!atomic_dec_and_test(&obt->obt_quotachecking)) {
- CDEBUG(D_INFO, "other people are doing quotacheck\n");
- atomic_inc(&obt->obt_quotachecking);
- RETURN(-EBUSY);
- }
-
- id = UGQUOTA2LQC(type);
- /* quota already turned on */
- if ((obt->obt_qctxt.lqc_flags & id) == id) {
- rc = 0;
- goto out;
- }
- if (obt->obt_qctxt.lqc_immutable) {
- LCONSOLE_ERROR("Failed to turn Quota on, immutable mode "
- "(is SOM enabled?)\n");
- goto out;
- }
-
- oqctl->qc_type = type;
- oqctl->qc_cmd = Q_QUOTAON;
- oqctl->qc_id = obt->obt_qfmt;
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- if (is_master) {
- struct mds_obd *mds = &obd->u.mds;
-
- down(&mds->mds_qonoff_sem);
- /* turn on cluster wide quota */
- rc = mds_admin_quota_on(obd, oqctl);
- if (rc)
- CDEBUG(rc == -ENOENT ? D_QUOTA : D_ERROR,
- "auto-enable admin quota failed. rc=%d\n", rc);
- up(&mds->mds_qonoff_sem);
-
- }
- if (!rc) {
- /* turn on local quota */
- rc = fsfilt_quotactl(obd, sb, oqctl);
- if (rc)
- CDEBUG(rc == -ENOENT ? D_QUOTA : D_ERROR,
- "auto-enable local quota failed. rc=%d\n", rc);
- else
- obt->obt_qctxt.lqc_flags |= UGQUOTA2LQC(type);
- }
-
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
-out:
- atomic_inc(&obt->obt_quotachecking);
-
- OBD_FREE_PTR(oqctl);
- RETURN(rc);
-}
-
-int lprocfs_quota_wr_type(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- struct obd_device_target *obt;
- int type = 0, is_mds;
- unsigned long i;
- char stype[MAX_STYPE_SIZE + 1] = "";
-
- LASSERT(obd != NULL);
-
- obt = &obd->u.obt;
-
- is_mds = !strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME);
-
- if (count > MAX_STYPE_SIZE)
- return -EINVAL;
-
- if (copy_from_user(stype, buffer, count))
- return -EFAULT;
-
- for (i = 0 ; i < count ; i++) {
- switch (stype[i]) {
- case 'u' :
- type |= USER_QUOTA;
- break;
- case 'g' :
- type |= GROUP_QUOTA;
- break;
- case '1' :
- case '2' :
- CWARN("quota_type options 1 and 2 are obsolete, "
- "they will be ignored\n");
- break;
- case '3' : /* the only valid version spec, do nothing */
- default : /* just skip stray symbols like \n */
- break;
- }
- }
-
- if (type != 0) {
- auto_quota_on(obd, type - 1, obt->obt_sb, is_mds);
- build_lqs(obd);
- }
-
- return count;
-}
-EXPORT_SYMBOL(lprocfs_quota_wr_type);
-
-int lprocfs_quota_rd_switch_seconds(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
-
- return snprintf(page, count, "%d\n",
- obd->u.obt.obt_qctxt.lqc_switch_seconds);
-}
-EXPORT_SYMBOL(lprocfs_quota_rd_switch_seconds);
-
-int lprocfs_quota_wr_switch_seconds(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val <= 10)
- return -EINVAL;
-
- obd->u.obt.obt_qctxt.lqc_switch_seconds = val;
- return count;
-}
-EXPORT_SYMBOL(lprocfs_quota_wr_switch_seconds);
-
-int lprocfs_quota_rd_sync_blk(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
-
- return snprintf(page, count, "%d\n",
- obd->u.obt.obt_qctxt.lqc_sync_blk);
-}
-EXPORT_SYMBOL(lprocfs_quota_rd_sync_blk);
-
-int lprocfs_quota_wr_sync_blk(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val < 0)
- return -EINVAL;
-
- obd->u.obt.obt_qctxt.lqc_sync_blk = val;
- return count;
-}
-EXPORT_SYMBOL(lprocfs_quota_wr_sync_blk);
-
-int lprocfs_quota_rd_switch_qs(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
-
- return snprintf(page, count, "changing qunit size is %s\n",
- obd->u.obt.obt_qctxt.lqc_switch_qs ?
- "enabled" : "disabled");
-}
-EXPORT_SYMBOL(lprocfs_quota_rd_switch_qs);
+/* structure allocated at seq_open time and release when seq_release is called.
+ * It is passed to seq_start/stop/next/show which can thus use the same lu_env
+ * to be used with the iterator API */
+struct lquota_procfs {
+ struct dt_object *lqp_obj;
+ struct lu_env lqp_env;
+};
-int lprocfs_quota_wr_switch_qs(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/* global shared environment */
+static void *lprocfs_quota_seq_start(struct seq_file *p, loff_t *pos)
{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val)
- obd->u.obt.obt_qctxt.lqc_switch_qs = 1;
- else
- obd->u.obt.obt_qctxt.lqc_switch_qs = 0;
-
- return count;
+ struct lquota_procfs *lqp = p->private;
+ const struct dt_it_ops *iops;
+ struct dt_it *it;
+ loff_t offset = *pos;
+ int rc;
+
+ LASSERT(lqp);
+
+ if (offset == 0)
+ return SEQ_START_TOKEN;
+ offset--;
+
+ if (lqp->lqp_obj == NULL)
+ /* accounting not enabled. */
+ return NULL;
+
+ /* initialize iterator */
+ iops = &lqp->lqp_obj->do_index_ops->dio_it;
+ it = iops->init(&lqp->lqp_env, lqp->lqp_obj, 0, BYPASS_CAPA);
+ if (IS_ERR(it)) {
+ CERROR("%s: failed to initialize iterator: rc = %ld\n",
+ lqp->lqp_obj->do_lu.lo_dev->ld_obd->obd_name,
+ PTR_ERR(it));
+ return NULL;
+ }
+
+ /* move on to the first valid record */
+ rc = iops->load(&lqp->lqp_env, it, 0);
+ if (rc < 0) { /* Error */
+ goto not_found;
+ } else if (rc == 0) {
+ /*
+ * Iterator didn't find record with exactly the key requested.
+ *
+ * It is currently either
+ *
+ * - positioned above record with key less than
+ * requested - skip it.
+ * - or not positioned at all (is in IAM_IT_SKEWED
+ * state) - position it on the next item.
+ */
+ rc = iops->next(&lqp->lqp_env, it);
+ if (rc != 0)
+ goto not_found;
+ }
+ while (offset--) {
+ rc = iops->next(&lqp->lqp_env, it);
+ if (rc != 0) /* Error or reach the end */
+ goto not_found;
+ }
+ return it;
+
+not_found:
+ iops->put(&lqp->lqp_env, it);
+ iops->fini(&lqp->lqp_env, it);
+ return NULL;
}
-EXPORT_SYMBOL(lprocfs_quota_wr_switch_qs);
-int lprocfs_quota_rd_boundary_factor(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static void lprocfs_quota_seq_stop(struct seq_file *p, void *v)
{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
-
-
- return snprintf(page, count, "%lu\n",
- obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor);
+ struct lquota_procfs *lqp = p->private;
+ const struct dt_it_ops *iops;
+ struct dt_it *it;
+
+ if (lqp->lqp_obj == NULL || v == NULL || v == SEQ_START_TOKEN)
+ return;
+
+ iops = &lqp->lqp_obj->do_index_ops->dio_it;
+ it = (struct dt_it *)v;
+ /* if something wrong happened during ->seq_show, we need to release
+ * the iterator here */
+ iops->put(&lqp->lqp_env, it);
+ iops->fini(&lqp->lqp_env, it);
}
-EXPORT_SYMBOL(lprocfs_quota_rd_boundary_factor);
-int lprocfs_quota_wr_boundary_factor(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static void *lprocfs_quota_seq_next(struct seq_file *p, void *v, loff_t *pos)
{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val < 2)
- return -EINVAL;
-
- obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor = val;
- return count;
-}
-EXPORT_SYMBOL(lprocfs_quota_wr_boundary_factor);
+ struct lquota_procfs *lqp = p->private;
+ const struct dt_it_ops *iops;
+ struct dt_it *it;
+ int rc;
-int lprocfs_quota_rd_least_bunit(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
+ LASSERT(lqp);
+ ++*pos;
+ if (lqp->lqp_obj == NULL)
+ return NULL;
- return snprintf(page, count, "%lu\n",
- obd->u.obt.obt_qctxt.lqc_cqs_least_bunit);
-}
-EXPORT_SYMBOL(lprocfs_quota_rd_least_bunit);
+ if (v == SEQ_START_TOKEN)
+ return lprocfs_quota_seq_start(p, pos);
-int lprocfs_quota_wr_least_bunit(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
+ iops = &lqp->lqp_obj->do_index_ops->dio_it;
+ it = (struct dt_it *)v;
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
+ rc = iops->next(&lqp->lqp_env, it);
+ if (rc == 0)
+ return it;
- if (val < PTLRPC_MAX_BRW_SIZE ||
- val >= obd->u.obt.obt_qctxt.lqc_bunit_sz)
- return -EINVAL;
+ if (rc < 0)
+ CERROR("%s: seq_next failed: rc = %d\n",
+ lqp->lqp_obj->do_lu.lo_dev->ld_obd->obd_name, rc);
- obd->u.obt.obt_qctxt.lqc_cqs_least_bunit = val;
- return count;
+ /* Reach the end or error */
+ iops->put(&lqp->lqp_env, it);
+ iops->fini(&lqp->lqp_env, it);
+ return NULL;
}
-EXPORT_SYMBOL(lprocfs_quota_wr_least_bunit);
-int lprocfs_quota_rd_least_iunit(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/*
+ * Output example:
+ *
+ * usr_accounting:
+ * - id: 0
+ * usage: { inodes: 209, kbytes: 2616 }
+ * - id: 840000038
+ * usage: { inodes: 1, kbytes: 1048 }
+ */
+static int lprocfs_quota_seq_show(struct seq_file *p, void *v)
{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
-
-
- return snprintf(page, count, "%lu\n",
- obd->u.obt.obt_qctxt.lqc_cqs_least_iunit);
+ struct lquota_procfs *lqp = p->private;
+ struct lquota_thread_info *qti = lquota_info(&lqp->lqp_env);
+ const struct dt_it_ops *iops;
+ struct dt_it *it;
+ struct dt_key *key;
+ struct dt_rec *rec = (struct dt_rec *)&qti->qti_rec;
+ const struct lu_fid *fid;
+ int rc;
+
+ LASSERT(lqp);
+ if (lqp->lqp_obj == NULL) {
+ seq_printf(p, "not supported\n");
+ return 0;
+ }
+
+ fid = lu_object_fid(&lqp->lqp_obj->do_lu);
+
+ if (v == SEQ_START_TOKEN) {
+ if (fid_is_acct(fid)) {
+ if (fid_oid(fid) == ACCT_USER_OID)
+ seq_printf(p, "usr_accounting:\n");
+ else
+ seq_printf(p, "grp_accounting:\n");
+ } else if (fid_seq(fid) == FID_SEQ_QUOTA_GLB) {
+ int poolid, rtype, qtype;
+
+ rc = lquota_extract_fid(fid, &poolid, &rtype, &qtype);
+ if (rc)
+ return rc;
+
+ seq_printf(p, "global_pool%d_%s_%s\n", poolid,
+ RES_NAME(rtype), QTYPE_NAME(qtype));
+ } else if (fid_seq(fid) == FID_SEQ_LOCAL_NAME) {
+ /* global index copy object */
+ seq_printf(p, "global_index_copy:\n");
+ } else {
+ return -ENOTSUPP;
+ }
+ return 0;
+ }
+
+ iops = &lqp->lqp_obj->do_index_ops->dio_it;
+ it = (struct dt_it *)v;
+
+ key = iops->key(&lqp->lqp_env, it);
+ if (IS_ERR(key)) {
+ CERROR("%s: failed to get key: rc = %ld\n",
+ lqp->lqp_obj->do_lu.lo_dev->ld_obd->obd_name,
+ PTR_ERR(key));
+ return PTR_ERR(key);
+ }
+
+ rc = iops->rec(&lqp->lqp_env, it, rec, 0);
+ if (rc) {
+ CERROR("%s: failed to get rec: rc = %d\n",
+ lqp->lqp_obj->do_lu.lo_dev->ld_obd->obd_name, rc);
+ return rc;
+ }
+
+ seq_printf(p, "- %-8s %llu\n", "id:", *((__u64 *)key));
+ if (fid_is_acct(fid))
+ seq_printf(p, " %-8s { inodes: %20"LPF64"u, kbytes: %20"LPF64
+ "u }\n", "usage:",
+ ((struct lquota_acct_rec *)rec)->ispace,
+ toqb(((struct lquota_acct_rec *)rec)->bspace));
+ else if (fid_seq(fid) == FID_SEQ_QUOTA_GLB ||
+ fid_seq(fid) == FID_SEQ_LOCAL_NAME)
+ seq_printf(p, " %-8s { hard: %20"LPF64"u, soft: %20"LPF64
+ "u, granted: %20"LPF64"u, time: %20"LPF64"u }\n",
+ "limits:",
+ ((struct lquota_glb_rec *)rec)->qbr_hardlimit,
+ ((struct lquota_glb_rec *)rec)->qbr_softlimit,
+ ((struct lquota_glb_rec *)rec)->qbr_granted,
+ ((struct lquota_glb_rec *)rec)->qbr_time);
+ return 0;
}
-EXPORT_SYMBOL(lprocfs_quota_rd_least_iunit);
-
-int lprocfs_quota_wr_least_iunit(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
- if (val < 1 || val >= obd->u.obt.obt_qctxt.lqc_iunit_sz)
- return -EINVAL;
-
- obd->u.obt.obt_qctxt.lqc_cqs_least_iunit = val;
- return count;
-}
-EXPORT_SYMBOL(lprocfs_quota_wr_least_iunit);
+struct seq_operations lprocfs_quota_seq_sops = {
+ .start = lprocfs_quota_seq_start,
+ .stop = lprocfs_quota_seq_stop,
+ .next = lprocfs_quota_seq_next,
+ .show = lprocfs_quota_seq_show,
+};
-int lprocfs_quota_rd_qs_factor(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int lprocfs_quota_seq_open(struct inode *inode, struct file *file)
{
- struct obd_device *obd = (struct obd_device *)data;
- LASSERT(obd != NULL);
-
-
- return snprintf(page, count, "%lu\n",
- obd->u.obt.obt_qctxt.lqc_cqs_qs_factor);
+ struct proc_dir_entry *dp = PDE(inode);
+ struct seq_file *seq;
+ int rc;
+ struct lquota_procfs *lqp;
+
+ /* Allocate quota procfs data. This structure will be passed to
+ * seq_start/stop/next/show via seq->private */
+ OBD_ALLOC_PTR(lqp);
+ if (lqp == NULL)
+ return -ENOMEM;
+
+ /* store pointer to object we would like to iterate over */
+ lqp->lqp_obj = (struct dt_object *)dp->data;
+
+ /* Initialize the common environment to be used in the seq operations */
+ rc = lu_env_init(&lqp->lqp_env, LCT_LOCAL);
+ if (rc) {
+ char *obd_name = "quota";
+
+ if (lqp->lqp_obj != NULL)
+ obd_name = lqp->lqp_obj->do_lu.lo_dev->ld_obd->obd_name;
+
+ CERROR("%s: error initializing procfs quota env: rc = %d\n",
+ obd_name, rc);
+ goto out_lqp;
+ }
+
+ if (LPROCFS_ENTRY_AND_CHECK(dp)) {
+ rc = -ENOENT;
+ goto out_env;
+ }
+
+ rc = seq_open(file, &lprocfs_quota_seq_sops);
+ if (rc)
+ goto out_lprocfs;
+
+ seq = file->private_data;
+ seq->private = lqp;
+ return 0;
+
+out_lprocfs:
+ LPROCFS_EXIT();
+out_env:
+ lu_env_fini(&lqp->lqp_env);
+out_lqp:
+ OBD_FREE_PTR(lqp);
+ return rc;
}
-EXPORT_SYMBOL(lprocfs_quota_rd_qs_factor);
-int lprocfs_quota_wr_qs_factor(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int lprocfs_quota_seq_release(struct inode *inode, struct file *file)
{
- struct obd_device *obd = (struct obd_device *)data;
- int val, rc;
- LASSERT(obd != NULL);
+ struct seq_file *seq = file->private_data;
+ struct lquota_procfs *lqp = seq->private;
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
+ LPROCFS_EXIT();
- if (val < 2)
- return -EINVAL;
+ LASSERT(lqp);
+ lu_env_fini(&lqp->lqp_env);
+ OBD_FREE_PTR(lqp);
- obd->u.obt.obt_qctxt.lqc_cqs_qs_factor = val;
- return count;
+ return seq_release(inode, file);
}
-EXPORT_SYMBOL(lprocfs_quota_wr_qs_factor);
-
-struct lprocfs_vars lprocfs_quota_common_vars[] = {
- { "quota_bunit_sz", lprocfs_quota_rd_bunit,
- lprocfs_quota_wr_bunit, 0},
- { "quota_btune_sz", lprocfs_quota_rd_btune,
- lprocfs_quota_wr_btune, 0},
- { "quota_iunit_sz", lprocfs_quota_rd_iunit,
- lprocfs_quota_wr_iunit, 0},
- { "quota_itune_sz", lprocfs_quota_rd_itune,
- lprocfs_quota_wr_itune, 0},
- { "quota_type", lprocfs_quota_rd_type,
- lprocfs_quota_wr_type, 0},
- { "quota_switch_seconds", lprocfs_quota_rd_switch_seconds,
- lprocfs_quota_wr_switch_seconds, 0 },
- { "quota_sync_blk", lprocfs_quota_rd_sync_blk,
- lprocfs_quota_wr_sync_blk, 0},
- { NULL }
-};
-struct lprocfs_vars lprocfs_quota_master_vars[] = {
- { "quota_switch_qs", lprocfs_quota_rd_switch_qs,
- lprocfs_quota_wr_switch_qs, 0 },
- { "quota_boundary_factor", lprocfs_quota_rd_boundary_factor,
- lprocfs_quota_wr_boundary_factor, 0 },
- { "quota_least_bunit", lprocfs_quota_rd_least_bunit,
- lprocfs_quota_wr_least_bunit, 0 },
- { "quota_least_iunit", lprocfs_quota_rd_least_iunit,
- lprocfs_quota_wr_least_iunit, 0 },
- { "quota_qs_factor", lprocfs_quota_rd_qs_factor,
- lprocfs_quota_wr_qs_factor, 0 },
- { NULL }
+struct file_operations lprocfs_quota_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = lprocfs_quota_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = lprocfs_quota_seq_release,
};
-
-int lquota_proc_setup(struct obd_device *obd, int is_master)
-{
- struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
- int rc = 0;
- ENTRY;
-
- LASSERT(lquota_type_proc_dir && obd);
- qctxt->lqc_proc_dir = lprocfs_register(obd->obd_name,
- lquota_type_proc_dir,
- lprocfs_quota_common_vars, obd);
- if (IS_ERR(qctxt->lqc_proc_dir)) {
- rc = PTR_ERR(qctxt->lqc_proc_dir);
- CERROR("error %d setting up lprocfs for %s\n", rc,
- obd->obd_name);
- qctxt->lqc_proc_dir = NULL;
- GOTO(out, rc);
- }
-
- if (is_master) {
- rc = lprocfs_add_vars(qctxt->lqc_proc_dir,
- lprocfs_quota_master_vars, obd);
- if (rc) {
- CERROR("error %d setting up lprocfs for %s"
- "(quota master)\n", rc, obd->obd_name);
- GOTO(out_free_proc, rc);
- }
- }
-
- qctxt->lqc_stats = lprocfs_alloc_stats(LQUOTA_LAST_STAT -
- LQUOTA_FIRST_STAT, 0);
- if (!qctxt->lqc_stats)
- GOTO(out_free_proc, rc = -ENOMEM);
-
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_ACQ,
- LPROCFS_CNTR_AVGMINMAX, "sync_acq_req", "us");
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_REL,
- LPROCFS_CNTR_AVGMINMAX, "sync_rel_req", "us");
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_ACQ,
- LPROCFS_CNTR_AVGMINMAX, "async_acq_req", "us");
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_REL,
- LPROCFS_CNTR_AVGMINMAX, "async_rel_req", "us");
-
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_BLK,
- LPROCFS_CNTR_AVGMINMAX,
- "wait_for_blk_quota(lquota_chkquota)", "us");
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_INO,
- LPROCFS_CNTR_AVGMINMAX,
- "wait_for_ino_quota(lquota_chkquota)", "us");
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_BLK,
- LPROCFS_CNTR_AVGMINMAX,
- "wait_for_blk_quota(lquota_pending_commit)",
- "us");
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_INO,
- LPROCFS_CNTR_AVGMINMAX,
- "wait_for_ino_quota(lquota_pending_commit)",
- "us");
-
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_BLK_QUOTA,
- LPROCFS_CNTR_AVGMINMAX,
- "wait_for_pending_blk_quota_req"
- "(qctxt_wait_pending_dqacq)", "us");
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_INO_QUOTA,
- LPROCFS_CNTR_AVGMINMAX,
- "wait_for_pending_ino_quota_req"
- "(qctxt_wait_pending_dqacq)", "us");
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_BLK_QUOTA,
- LPROCFS_CNTR_AVGMINMAX,
- "nowait_for_pending_blk_quota_req"
- "(qctxt_wait_pending_dqacq)", "us");
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_INO_QUOTA,
- LPROCFS_CNTR_AVGMINMAX,
- "nowait_for_pending_ino_quota_req"
- "(qctxt_wait_pending_dqacq)", "us");
-
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_QUOTA_CTL,
- LPROCFS_CNTR_AVGMINMAX, "quota_ctl", "us");
- lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ADJUST_QUNIT,
- LPROCFS_CNTR_AVGMINMAX, "adjust_qunit", "us");
-
- lprocfs_register_stats(qctxt->lqc_proc_dir, "stats", qctxt->lqc_stats);
-
- RETURN(rc);
-
-out_free_proc:
- lprocfs_remove(&qctxt->lqc_proc_dir);
-out:
- RETURN(rc);
-}
-
-int lquota_proc_cleanup(struct lustre_quota_ctxt *qctxt)
-{
- if (!qctxt || !qctxt->lqc_proc_dir)
- return -EINVAL;
-
- if (qctxt->lqc_stats != NULL)
- lprocfs_free_stats(&qctxt->lqc_stats);
-
- lprocfs_remove(&qctxt->lqc_proc_dir);
- return 0;
-}
-
#endif /* LPROCFS */
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff