-/* -*- 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 the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * 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.
*
- * You may have signed or agreed to another license before downloading
- * this software. If so, you are bound by the terms and conditions
- * of that agreement, and the following does not apply to you. See the
- * LICENSE file included with this distribution for more information.
+ * 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).
*
- * If you did not agree to a different license, then this copy of Lustre
- * is open source 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.
+ * 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
*
- * In either case, 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
- * license text for more details.
+ * 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.
*
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
+ */
+/*
+ * 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>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
#include <asm/statfs.h>
-#endif
#include <lprocfs_status.h>
#include <obd_class.h>
-#include <linux/seq_file.h>
+#include <lustre_param.h>
#include "lov_internal.h"
#ifdef LPROCFS
-static int lov_rd_stripesize(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)
{
- struct obd_device *dev = (struct obd_device *)data;
- struct lov_desc *desc;
+ struct obd_device *dev = (struct obd_device *)m->private;
+ struct lov_desc *desc;
- LASSERT(dev != NULL);
- desc = &dev->u.lov.desc;
- *eof = 1;
- return snprintf(page, count, LPU64"\n", desc->ld_default_stripe_size);
+ LASSERT(dev != NULL);
+ desc = &dev->u.lov.desc;
+
+ return seq_printf(m, LPU64"\n", desc->ld_default_stripe_size);
}
-static int lov_wr_stripesize(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t lov_stripesize_seq_write(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *dev = (struct obd_device *)data;
+ struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
struct lov_desc *desc;
__u64 val;
int rc;
-
+
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
rc = lprocfs_write_u64_helper(buffer, count, &val);
if (rc)
return rc;
+ lov_fix_desc_stripe_size(&val);
desc->ld_default_stripe_size = val;
- lov_fix_desc(desc);
return count;
}
+LPROC_SEQ_FOPS(lov_stripesize);
-static int lov_rd_stripeoffset(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
{
- struct obd_device *dev = (struct obd_device *)data;
- struct lov_desc *desc;
+ struct obd_device *dev = (struct obd_device *)m->private;
+ struct lov_desc *desc;
- LASSERT(dev != NULL);
- desc = &dev->u.lov.desc;
- *eof = 1;
- return snprintf(page, count, LPU64"\n", desc->ld_default_stripe_offset);
+ LASSERT(dev != NULL);
+ desc = &dev->u.lov.desc;
+ return seq_printf(m, LPU64"\n", desc->ld_default_stripe_offset);
}
-static int lov_wr_stripeoffset(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t lov_stripeoffset_seq_write(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *dev = (struct obd_device *)data;
+ struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
struct lov_desc *desc;
__u64 val;
int rc;
-
+
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
rc = lprocfs_write_u64_helper(buffer, count, &val);
return rc;
desc->ld_default_stripe_offset = val;
- lov_fix_desc(desc);
return count;
}
+LPROC_SEQ_FOPS(lov_stripeoffset);
-static int lov_rd_stripetype(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int lov_stripetype_seq_show(struct seq_file *m, void *v)
{
- struct obd_device* dev = (struct obd_device*)data;
- struct lov_desc *desc;
+ struct obd_device* dev = (struct obd_device*)m->private;
+ struct lov_desc *desc;
- LASSERT(dev != NULL);
- desc = &dev->u.lov.desc;
- *eof = 1;
- return snprintf(page, count, "%u\n", desc->ld_pattern);
+ LASSERT(dev != NULL);
+ desc = &dev->u.lov.desc;
+ return seq_printf(m, "%u\n", desc->ld_pattern);
}
-static int lov_wr_stripetype(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t lov_stripetype_seq_write(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *dev = (struct obd_device *)data;
+ struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
struct lov_desc *desc;
int val, rc;
-
+
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
rc = lprocfs_write_helper(buffer, count, &val);
if (rc)
return rc;
+ lov_fix_desc_pattern(&val);
desc->ld_pattern = val;
- lov_fix_desc(desc);
return count;
}
+LPROC_SEQ_FOPS(lov_stripetype);
-static int lov_rd_stripecount(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int lov_stripecount_seq_show(struct seq_file *m, void *v)
{
- struct obd_device *dev = (struct obd_device *)data;
- struct lov_desc *desc;
+ struct obd_device *dev = (struct obd_device *)m->private;
+ struct lov_desc *desc;
- LASSERT(dev != NULL);
- desc = &dev->u.lov.desc;
- *eof = 1;
- return snprintf(page, count, "%u\n", desc->ld_default_stripe_count);
+ LASSERT(dev != NULL);
+ desc = &dev->u.lov.desc;
+ return seq_printf(m, "%d\n",
+ (__s16)(desc->ld_default_stripe_count + 1) - 1);
}
-static int lov_wr_stripecount(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t lov_stripecount_seq_write(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *dev = (struct obd_device *)data;
+ struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
struct lov_desc *desc;
int val, rc;
-
+
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
rc = lprocfs_write_helper(buffer, count, &val);
if (rc)
return rc;
+ lov_fix_desc_stripe_count(&val);
desc->ld_default_stripe_count = val;
- lov_fix_desc(desc);
return count;
}
+LPROC_SEQ_FOPS(lov_stripecount);
-static int lov_rd_numobd(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int lov_numobd_seq_show(struct seq_file *m, void *v)
{
- struct obd_device *dev = (struct obd_device*)data;
- struct lov_desc *desc;
-
- LASSERT(dev != NULL);
- desc = &dev->u.lov.desc;
- *eof = 1;
- return snprintf(page, count, "%u\n", desc->ld_tgt_count);
+ struct obd_device *dev = (struct obd_device*)m->private;
+ struct lov_desc *desc;
+ LASSERT(dev != NULL);
+ desc = &dev->u.lov.desc;
+ return seq_printf(m, "%u\n", desc->ld_tgt_count);
}
+LPROC_SEQ_FOPS_RO(lov_numobd);
-static int lov_rd_activeobd(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int lov_activeobd_seq_show(struct seq_file *m, void *v)
{
- struct obd_device* dev = (struct obd_device*)data;
- struct lov_desc *desc;
+ struct obd_device* dev = (struct obd_device*)m->private;
+ struct lov_desc *desc;
- LASSERT(dev != NULL);
- desc = &dev->u.lov.desc;
- *eof = 1;
- return snprintf(page, count, "%u\n", desc->ld_active_tgt_count);
+ LASSERT(dev != NULL);
+ desc = &dev->u.lov.desc;
+ return seq_printf(m, "%u\n", desc->ld_active_tgt_count);
}
+LPROC_SEQ_FOPS_RO(lov_activeobd);
-static int lov_rd_desc_uuid(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
{
- struct obd_device *dev = (struct obd_device*) data;
- struct lov_obd *lov;
+ struct obd_device *dev = m->private;
+ struct lov_obd *lov;
- LASSERT(dev != NULL);
- lov = &dev->u.lov;
- *eof = 1;
- return snprintf(page, count, "%s\n", lov->desc.ld_uuid.uuid);
-}
-
-/* free priority (0-255): how badly user wants to choose empty osts */
-static int lov_rd_qos_priofree(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct obd_device *dev = (struct obd_device*) data;
- struct lov_obd *lov;
-
- LASSERT(dev != NULL);
- lov = &dev->u.lov;
- *eof = 1;
- return snprintf(page, count, "%d%%\n",
- (lov->lov_qos.lq_prio_free * 100) >> 8);
-}
-
-static int lov_wr_qos_priofree(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *dev = (struct obd_device *)data;
- struct lov_obd *lov;
- int val, rc;
- LASSERT(dev != NULL);
-
- lov = &dev->u.lov;
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val > 100)
- return -EINVAL;
- lov->lov_qos.lq_prio_free = (val << 8) / 100;
- lov->lov_qos.lq_dirty = 1;
- lov->lov_qos.lq_reset = 1;
- return count;
-}
-
-static int lov_rd_qos_maxage(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct obd_device *dev = (struct obd_device*) data;
- struct lov_obd *lov;
-
- LASSERT(dev != NULL);
- lov = &dev->u.lov;
- *eof = 1;
- return snprintf(page, count, "%u Sec\n", lov->desc.ld_qos_maxage);
-}
-
-static int lov_wr_qos_maxage(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *dev = (struct obd_device *)data;
- struct lov_obd *lov;
- int val, rc;
- LASSERT(dev != NULL);
-
- lov = &dev->u.lov;
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val <= 0)
- return -EINVAL;
- lov->desc.ld_qos_maxage = val;
- return count;
+ LASSERT(dev != NULL);
+ lov = &dev->u.lov;
+ return seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
}
+LPROC_SEQ_FOPS_RO(lov_desc_uuid);
static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos)
{
struct obd_device *dev = p->private;
struct lov_obd *lov = &dev->u.lov;
- return (*pos >= lov->desc.ld_tgt_count) ? NULL : lov->lov_tgts[*pos];
-
+ while (*pos < lov->desc.ld_tgt_count) {
+ if (lov->lov_tgts[*pos])
+ return lov->lov_tgts[*pos];
+ ++*pos;
+ }
+ return NULL;
}
static void lov_tgt_seq_stop(struct seq_file *p, void *v)
struct obd_device *dev = p->private;
struct lov_obd *lov = &dev->u.lov;
- while (*pos < lov->desc.ld_tgt_count) {
- ++*pos;
+ while (++*pos < lov->desc.ld_tgt_count) {
if (lov->lov_tgts[*pos])
return lov->lov_tgts[*pos];
}
static int lov_target_seq_open(struct inode *inode, struct file *file)
{
- struct proc_dir_entry *dp = PDE(inode);
- struct seq_file *seq;
- int rc;
+ struct seq_file *seq;
+ int rc;
- LPROCFS_ENTRY_AND_CHECK(dp);
- rc = seq_open(file, &lov_tgt_sops);
- if (rc) {
- LPROCFS_EXIT();
- return rc;
- }
+ LPROCFS_ENTRY_CHECK(PDE(inode));
+ rc = seq_open(file, &lov_tgt_sops);
+ if (rc)
+ return rc;
- seq = file->private_data;
- seq->private = dp->data;
- return 0;
+ seq = file->private_data;
+ seq->private = PDE_DATA(inode);
+ return 0;
}
-struct lprocfs_vars lprocfs_obd_vars[] = {
- { "uuid", lprocfs_rd_uuid, 0, 0 },
- { "stripesize", lov_rd_stripesize, lov_wr_stripesize, 0 },
- { "stripeoffset", lov_rd_stripeoffset, lov_wr_stripeoffset, 0 },
- { "stripecount", lov_rd_stripecount, lov_wr_stripecount, 0 },
- { "stripetype", lov_rd_stripetype, lov_wr_stripetype, 0 },
- { "numobd", lov_rd_numobd, 0, 0 },
- { "activeobd", lov_rd_activeobd, 0, 0 },
- { "filestotal", lprocfs_rd_filestotal, 0, 0 },
- { "filesfree", lprocfs_rd_filesfree, 0, 0 },
- /*{ "filegroups", lprocfs_rd_filegroups, 0, 0 },*/
- { "blocksize", lprocfs_rd_blksize, 0, 0 },
- { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
- { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
- { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
- { "desc_uuid", lov_rd_desc_uuid, 0, 0 },
- { "qos_prio_free",lov_rd_qos_priofree, lov_wr_qos_priofree, 0 },
- { "qos_maxage", lov_rd_qos_maxage, lov_wr_qos_maxage, 0 },
- { 0 }
-};
-
-static struct lprocfs_vars lprocfs_module_vars[] = {
- { "num_refs", lprocfs_rd_numrefs, 0, 0 },
- { 0 }
+LPROC_SEQ_FOPS_RO_TYPE(lov, uuid);
+LPROC_SEQ_FOPS_RO_TYPE(lov, filestotal);
+LPROC_SEQ_FOPS_RO_TYPE(lov, filesfree);
+LPROC_SEQ_FOPS_RO_TYPE(lov, blksize);
+LPROC_SEQ_FOPS_RO_TYPE(lov, kbytestotal);
+LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesfree);
+LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesavail);
+
+struct lprocfs_seq_vars lprocfs_lov_obd_vars[] = {
+ { "uuid", &lov_uuid_fops },
+ { "stripesize", &lov_stripesize_fops },
+ { "stripeoffset", &lov_stripeoffset_fops },
+ { "stripecount", &lov_stripecount_fops },
+ { "stripetype", &lov_stripetype_fops },
+ { "numobd", &lov_numobd_fops },
+ { "activeobd", &lov_activeobd_fops },
+ { "filestotal", &lov_filestotal_fops },
+ { "filesfree", &lov_filesfree_fops },
+ { "blocksize", &lov_blksize_fops },
+ { "kbytestotal", &lov_kbytestotal_fops },
+ { "kbytesfree", &lov_kbytesfree_fops },
+ { "kbytesavail", &lov_kbytesavail_fops },
+ { "desc_uuid", &lov_desc_uuid_fops },
+ { 0 }
};
struct file_operations lov_proc_target_fops = {
.llseek = seq_lseek,
.release = lprocfs_seq_release,
};
-
-LPROCFS_INIT_VARS(lov, lprocfs_module_vars, lprocfs_obd_vars)
#endif /* LPROCFS */