-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2002 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
*
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
-#define DEBUG_SUBSYSTEM S_CLASS
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/lprocfs.h>
-#include <linux/string.h>
-#include <linux/lustre_lib.h>
-
-
/*
- * Common SNMP namespace
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
+#define DEBUG_SUBSYSTEM S_CLASS
+
+#include <linux/version.h>
+#include <asm/statfs.h>
+#include <lprocfs_status.h>
+#include <obd_class.h>
+#include <uapi/linux/lustre/lustre_param.h>
+#include "lov_internal.h"
-int rd_uuid(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static int lov_stripesize_seq_show(struct seq_file *m, void *v)
{
- int len=0;
- struct obd_device* dev=(struct obd_device*)data;
- len+=snprintf(page, count, "%s\n", dev->obd_uuid);
- return len;
-
+ struct obd_device *dev = (struct obd_device *)m->private;
+ struct lov_desc *desc;
+ LASSERT(dev != NULL);
+ desc = &dev->u.lov.desc;
+
+ seq_printf(m, "%llu\n", desc->ld_default_stripe_size);
+ return 0;
}
-int rd_stripesize(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+
+static ssize_t lov_stripesize_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device* dev=(struct obd_device*)data;
- int len=0;
- struct lov_obd* lov=&dev->u.lov;
- len+=snprintf(page, count, LPU64"\n", \
- (__u64)(lov->desc.ld_default_stripe_count));
-
- return len;
+ struct seq_file *m = file->private_data;
+ struct obd_device *dev = m->private;
+ struct lov_desc *desc;
+ char kernbuf[22] = "";
+ u64 val;
+ int rc;
+
+ LASSERT(dev != NULL);
+ desc = &dev->u.lov.desc;
+
+ if (count >= sizeof(kernbuf))
+ return -EINVAL;
+
+ if (copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
+ kernbuf[count] = 0;
+
+ rc = sysfs_memparse(kernbuf, count, &val, "B");
+ if (rc < 0)
+ return rc;
+
+ lov_fix_desc_stripe_size(&val);
+ desc->ld_default_stripe_size = val;
+
+ return count;
}
+LPROC_SEQ_FOPS(lov_stripesize);
-int rd_stripedepth(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t stripeoffset_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- struct obd_device* dev=(struct obd_device*)data;
- int len=0;
- struct lov_obd* lov=&dev->u.lov;
- len+=snprintf(page, count, LPU64"\n", \
- lov->desc.ld_default_stripe_size);
- return len;
+ struct obd_device *dev = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lov_desc *desc = &dev->u.lov.desc;
+ return sprintf(buf, "%lld\n", desc->ld_default_stripe_offset);
}
-int rd_stripefactor(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+
+static ssize_t stripeoffset_store(struct kobject *kobj, struct attribute *attr,
+ const char *buf, size_t count)
{
- struct obd_device* dev=(struct obd_device*)data;
- int len=0;
- struct lov_obd* lov=&dev->u.lov;
- len+=snprintf(page, count, LPU64"\n", \
- lov->desc.ld_default_stripe_offset);
- return len;
+ struct obd_device *dev = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lov_desc *desc = &dev->u.lov.desc;
+ long val;
+ int rc;
+
+ rc = kstrtol(buf, 0, &val);
+ if (rc)
+ return rc;
+ if (val < -1 || val > LOV_MAX_STRIPE_COUNT)
+ return -ERANGE;
+
+ desc->ld_default_stripe_offset = val;
+ return count;
}
+LUSTRE_RW_ATTR(stripeoffset);
-int rd_stripetype(char* page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device* dev=(struct obd_device*)data;
- int len=0;
- struct lov_obd* lov=&dev->u.lov;
- len+=snprintf(page, count, LPU64"\n", \
- (__u64)(lov->desc.ld_pattern));
- return len;
+static ssize_t stripetype_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct obd_device *dev = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lov_desc *desc = &dev->u.lov.desc;
+ return sprintf(buf, "%u\n", desc->ld_pattern);
}
-int rd_blksize(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t stripetype_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
{
- return 0;
+ struct obd_device *dev = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lov_desc *desc = &dev->u.lov.desc;
+ u32 pattern;
+ int rc;
+
+ rc = kstrtouint(buffer, 0, &pattern);
+ if (rc)
+ return rc;
+
+ lov_fix_desc_pattern(&pattern);
+ desc->ld_pattern = pattern;
+
+ return count;
}
+LUSTRE_RW_ATTR(stripetype);
+
+static ssize_t stripecount_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct obd_device *dev = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lov_desc *desc = &dev->u.lov.desc;
+ return sprintf(buf, "%d\n",
+ (__s16)(desc->ld_default_stripe_count + 1) - 1);
+}
-int rd_blktotal(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t stripecount_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
{
- return 0;
+ struct obd_device *dev = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lov_desc *desc = &dev->u.lov.desc;
+ int stripe_count;
+ int rc;
+
+ rc = kstrtoint(buffer, 0, &stripe_count);
+ if (rc)
+ return rc;
+
+ if (stripe_count < -1)
+ return -ERANGE;
+
+ lov_fix_desc_stripe_count(&stripe_count);
+ desc->ld_default_stripe_count = stripe_count;
+
+ return count;
}
+LUSTRE_RW_ATTR(stripecount);
-int rd_blkfree(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t numobd_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- return 0;
+ struct obd_device *dev = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lov_desc *desc = &dev->u.lov.desc;
+
+ return sprintf(buf, "%u\n", desc->ld_tgt_count);
}
+LUSTRE_RO_ATTR(numobd);
-int rd_kbfree(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t activeobd_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- return 0;
+ struct obd_device *dev = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lov_desc *desc = &dev->u.lov.desc;
+
+ return sprintf(buf, "%u\n", desc->ld_active_tgt_count);
}
+LUSTRE_RO_ATTR(activeobd);
-int rd_numobjects(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t desc_uuid_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- return 0;
+ struct obd_device *dev = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lov_desc *desc = &dev->u.lov.desc;
+
+ return sprintf(buf, "%s\n", desc->ld_uuid.uuid);
}
+LUSTRE_RO_ATTR(desc_uuid);
-int rd_objfree(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+#ifdef CONFIG_PROC_FS
+static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos)
{
- return 0;
+ struct obd_device *dev = p->private;
+ struct lov_obd *lov = &dev->u.lov;
+
+ while (*pos < lov->desc.ld_tgt_count) {
+ if (lov->lov_tgts[*pos])
+ return lov->lov_tgts[*pos];
+ ++*pos;
+ }
+ return NULL;
}
-int rd_objgroups(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static void lov_tgt_seq_stop(struct seq_file *p, void *v)
{
- return 0;
}
-int rd_target(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
{
- struct obd_device* dev=(struct obd_device*)data;
- int len=0, i=0;
- struct lov_obd* lov=&dev->u.lov;
- struct lov_tgt_desc* tgts=lov->tgts;
- while(i<lov->desc.ld_tgt_count){
- len+=snprintf(page, count, \
- "OBD Device [%d] UUID: %s\n", \
- i, tgts->uuid);
+ struct obd_device *dev = p->private;
+ struct lov_obd *lov = &dev->u.lov;
- i++;
- tgts++;
+ while (++*pos < lov->desc.ld_tgt_count) {
+ if (lov->lov_tgts[*pos])
+ return lov->lov_tgts[*pos];
}
-
- return len;
-}
-int rd_mdc(char* page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device* dev=(struct obd_device*)data;
- int len=0;
- struct lov_obd* lov=&dev->u.lov;
- len+=snprintf(page, count, \
- "%s\n", \
- lov->mdcobd->obd_uuid);
- return len;
-}
-
-lprocfs_vars_t snmp_var_nm_1[]={
- {"snmp/uuid", rd_uuid, 0},
- {"snmp/lov_stripesize",rd_stripesize, 0},
- {"snmp/lov_stripedepth",rd_stripedepth, 0},
- {"snmp/lov_stripefactor",rd_stripefactor, 0},
- {"snmp/lov_stripetype", rd_stripetype, 0},
- {"snmp/f_objects", rd_numobjects, 0},
- {"snmp/f_objectsfree", rd_objfree, 0},
- {"snmp/f_objectgroups", rd_objgroups, 0},
- {"snmp/f_blocksize", rd_blksize, 0},
- {"snmp/f_blockstotal", rd_blktotal, 0},
- {"snmp/f_kbytesfree", rd_kbfree, 0},
- {"snmp/f_blocksfree", rd_blkfree, 0},
- {"snmp/target_obd", rd_target, 0},
- {"snmp/target_mdc", rd_mdc, 0},
- {0}
+ return NULL;
+}
+
+static int lov_tgt_seq_show(struct seq_file *p, void *v)
+{
+ struct lov_tgt_desc *tgt = v;
+
+ seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_index,
+ obd_uuid2str(&tgt->ltd_uuid),
+ tgt->ltd_active ? "" : "IN");
+ return 0;
+}
+
+static const struct seq_operations lov_tgt_sops = {
+ .start = lov_tgt_seq_start,
+ .stop = lov_tgt_seq_stop,
+ .next = lov_tgt_seq_next,
+ .show = lov_tgt_seq_show,
};
+
+static int lov_target_seq_open(struct inode *inode, struct file *file)
+{
+ struct seq_file *seq;
+ int rc;
+
+ rc = seq_open(file, &lov_tgt_sops);
+ if (rc)
+ return rc;
+
+ seq = file->private_data;
+ seq->private = PDE_DATA(inode);
+ return 0;
+}
+
+struct lprocfs_vars lprocfs_lov_obd_vars[] = {
+ { .name = "stripesize",
+ .fops = &lov_stripesize_fops },
+ { NULL }
+};
+
+const struct file_operations lov_proc_target_fops = {
+ .owner = THIS_MODULE,
+ .open = lov_target_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = lprocfs_seq_release,
+};
+#endif /* CONFIG_PROC_FS */
+
+static struct attribute *lov_attrs[] = {
+ &lustre_attr_activeobd.attr,
+ &lustre_attr_numobd.attr,
+ &lustre_attr_desc_uuid.attr,
+ &lustre_attr_stripeoffset.attr,
+ &lustre_attr_stripetype.attr,
+ &lustre_attr_stripecount.attr,
+ NULL,
+};
+
+int lov_tunables_init(struct obd_device *obd)
+{
+ struct lov_obd *lov = &obd->u.lov;
+ int rc;
+
+ obd->obd_vars = lprocfs_lov_obd_vars;
+ obd->obd_ktype.default_attrs = lov_attrs;
+ rc = lprocfs_obd_setup(obd, false);
+ if (rc)
+ GOTO(out, rc);
+
+#ifdef CONFIG_PROC_FS
+ rc = lprocfs_seq_create(obd->obd_proc_entry, "target_obd", 0444,
+ &lov_proc_target_fops, obd);
+ if (rc)
+ CWARN("%s: Error adding the target_obd file : rc %d\n",
+ obd->obd_name, rc);
+
+ lov->lov_pool_proc_entry = lprocfs_register("pools",
+ obd->obd_proc_entry,
+ NULL, NULL);
+ if (IS_ERR(lov->lov_pool_proc_entry)) {
+ rc = PTR_ERR(lov->lov_pool_proc_entry);
+ CERROR("%s: error setting up debugfs for pools : rc %d\n",
+ obd->obd_name, rc);
+ lov->lov_pool_proc_entry = NULL;
+ }
+#endif /* CONFIG_FS_PROC */
+out:
+ return rc;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff