4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
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10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
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18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2012, 2015, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 #define DEBUG_SUBSYSTEM S_CLASS
38 #include <linux/version.h>
39 #include <asm/statfs.h>
40 #include <lprocfs_status.h>
41 #include <obd_class.h>
42 #include <lustre_param.h>
43 #include "lov_internal.h"
46 static int lov_stripesize_seq_show(struct seq_file *m, void *v)
48 struct obd_device *dev = (struct obd_device *)m->private;
49 struct lov_desc *desc;
52 desc = &dev->u.lov.desc;
54 seq_printf(m, LPU64"\n", desc->ld_default_stripe_size);
58 static ssize_t lov_stripesize_seq_write(struct file *file,
59 const char __user *buffer,
60 size_t count, loff_t *off)
62 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
63 struct lov_desc *desc;
68 desc = &dev->u.lov.desc;
69 rc = lprocfs_write_u64_helper(buffer, count, &val);
73 lov_fix_desc_stripe_size(&val);
74 desc->ld_default_stripe_size = val;
77 LPROC_SEQ_FOPS(lov_stripesize);
79 static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
81 struct obd_device *dev = (struct obd_device *)m->private;
82 struct lov_desc *desc;
85 desc = &dev->u.lov.desc;
86 seq_printf(m, LPU64"\n", desc->ld_default_stripe_offset);
90 static ssize_t lov_stripeoffset_seq_write(struct file *file,
91 const char __user *buffer,
92 size_t count, loff_t *off)
94 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
95 struct lov_desc *desc;
100 desc = &dev->u.lov.desc;
101 rc = lprocfs_write_u64_helper(buffer, count, &val);
105 desc->ld_default_stripe_offset = val;
108 LPROC_SEQ_FOPS(lov_stripeoffset);
110 static int lov_stripetype_seq_show(struct seq_file *m, void *v)
112 struct obd_device* dev = (struct obd_device*)m->private;
113 struct lov_desc *desc;
115 LASSERT(dev != NULL);
116 desc = &dev->u.lov.desc;
117 seq_printf(m, "%u\n", desc->ld_pattern);
121 static ssize_t lov_stripetype_seq_write(struct file *file,
122 const char __user *buffer,
123 size_t count, loff_t *off)
125 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
126 struct lov_desc *desc;
129 LASSERT(dev != NULL);
130 desc = &dev->u.lov.desc;
131 rc = lprocfs_write_helper(buffer, count, &val);
135 lov_fix_desc_pattern(&val);
136 desc->ld_pattern = val;
139 LPROC_SEQ_FOPS(lov_stripetype);
141 static int lov_stripecount_seq_show(struct seq_file *m, void *v)
143 struct obd_device *dev = (struct obd_device *)m->private;
144 struct lov_desc *desc;
146 LASSERT(dev != NULL);
147 desc = &dev->u.lov.desc;
148 seq_printf(m, "%d\n",
149 (__s16)(desc->ld_default_stripe_count + 1) - 1);
153 static ssize_t lov_stripecount_seq_write(struct file *file,
154 const char __user *buffer,
155 size_t count, loff_t *off)
157 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
158 struct lov_desc *desc;
161 LASSERT(dev != NULL);
162 desc = &dev->u.lov.desc;
163 rc = lprocfs_write_helper(buffer, count, &val);
167 lov_fix_desc_stripe_count(&val);
168 desc->ld_default_stripe_count = val;
171 LPROC_SEQ_FOPS(lov_stripecount);
173 static int lov_numobd_seq_show(struct seq_file *m, void *v)
175 struct obd_device *dev = (struct obd_device*)m->private;
176 struct lov_desc *desc;
178 LASSERT(dev != NULL);
179 desc = &dev->u.lov.desc;
180 seq_printf(m, "%u\n", desc->ld_tgt_count);
183 LPROC_SEQ_FOPS_RO(lov_numobd);
185 static int lov_activeobd_seq_show(struct seq_file *m, void *v)
187 struct obd_device* dev = (struct obd_device*)m->private;
188 struct lov_desc *desc;
190 LASSERT(dev != NULL);
191 desc = &dev->u.lov.desc;
192 seq_printf(m, "%u\n", desc->ld_active_tgt_count);
195 LPROC_SEQ_FOPS_RO(lov_activeobd);
197 static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
199 struct obd_device *dev = m->private;
202 LASSERT(dev != NULL);
204 seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
207 LPROC_SEQ_FOPS_RO(lov_desc_uuid);
209 static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos)
211 struct obd_device *dev = p->private;
212 struct lov_obd *lov = &dev->u.lov;
214 while (*pos < lov->desc.ld_tgt_count) {
215 if (lov->lov_tgts[*pos])
216 return lov->lov_tgts[*pos];
222 static void lov_tgt_seq_stop(struct seq_file *p, void *v)
226 static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
228 struct obd_device *dev = p->private;
229 struct lov_obd *lov = &dev->u.lov;
231 while (++*pos < lov->desc.ld_tgt_count) {
232 if (lov->lov_tgts[*pos])
233 return lov->lov_tgts[*pos];
238 static int lov_tgt_seq_show(struct seq_file *p, void *v)
240 struct lov_tgt_desc *tgt = v;
241 seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_index,
242 obd_uuid2str(&tgt->ltd_uuid),
243 tgt->ltd_active ? "" : "IN");
247 static const struct seq_operations lov_tgt_sops = {
248 .start = lov_tgt_seq_start,
249 .stop = lov_tgt_seq_stop,
250 .next = lov_tgt_seq_next,
251 .show = lov_tgt_seq_show,
254 static int lov_target_seq_open(struct inode *inode, struct file *file)
256 struct seq_file *seq;
259 rc = LPROCFS_ENTRY_CHECK(inode);
263 rc = seq_open(file, &lov_tgt_sops);
267 seq = file->private_data;
268 seq->private = PDE_DATA(inode);
272 LPROC_SEQ_FOPS_RO_TYPE(lov, uuid);
273 LPROC_SEQ_FOPS_RO_TYPE(lov, filestotal);
274 LPROC_SEQ_FOPS_RO_TYPE(lov, filesfree);
275 LPROC_SEQ_FOPS_RO_TYPE(lov, blksize);
276 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytestotal);
277 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesfree);
278 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesavail);
280 struct lprocfs_vars lprocfs_lov_obd_vars[] = {
282 .fops = &lov_uuid_fops },
283 { .name = "stripesize",
284 .fops = &lov_stripesize_fops },
285 { .name = "stripeoffset",
286 .fops = &lov_stripeoffset_fops },
287 { .name = "stripecount",
288 .fops = &lov_stripecount_fops },
289 { .name = "stripetype",
290 .fops = &lov_stripetype_fops },
292 .fops = &lov_numobd_fops },
293 { .name = "activeobd",
294 .fops = &lov_activeobd_fops },
295 { .name = "filestotal",
296 .fops = &lov_filestotal_fops },
297 { .name = "filesfree",
298 .fops = &lov_filesfree_fops },
299 { .name = "blocksize",
300 .fops = &lov_blksize_fops },
301 { .name = "kbytestotal",
302 .fops = &lov_kbytestotal_fops },
303 { .name = "kbytesfree",
304 .fops = &lov_kbytesfree_fops },
305 { .name = "kbytesavail",
306 .fops = &lov_kbytesavail_fops },
307 { .name = "desc_uuid",
308 .fops = &lov_desc_uuid_fops },
312 struct file_operations lov_proc_target_fops = {
313 .owner = THIS_MODULE,
314 .open = lov_target_seq_open,
317 .release = lprocfs_seq_release,
319 #endif /* CONFIG_PROC_FS */