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,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
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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_str_to_s64(buffer, count, &val);
75 lov_fix_desc_stripe_size(&val);
76 desc->ld_default_stripe_size = val;
80 LPROC_SEQ_FOPS(lov_stripesize);
82 static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
84 struct obd_device *dev = (struct obd_device *)m->private;
85 struct lov_desc *desc;
88 desc = &dev->u.lov.desc;
89 seq_printf(m, LPU64"\n", desc->ld_default_stripe_offset);
93 static ssize_t lov_stripeoffset_seq_write(struct file *file,
94 const char __user *buffer,
95 size_t count, loff_t *off)
97 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
98 struct lov_desc *desc;
102 LASSERT(dev != NULL);
103 desc = &dev->u.lov.desc;
104 rc = lprocfs_str_to_s64(buffer, count, &val);
110 desc->ld_default_stripe_offset = val;
114 LPROC_SEQ_FOPS(lov_stripeoffset);
116 static int lov_stripetype_seq_show(struct seq_file *m, void *v)
118 struct obd_device* dev = (struct obd_device*)m->private;
119 struct lov_desc *desc;
121 LASSERT(dev != NULL);
122 desc = &dev->u.lov.desc;
123 seq_printf(m, "%u\n", desc->ld_pattern);
127 static ssize_t lov_stripetype_seq_write(struct file *file,
128 const char __user *buffer,
129 size_t count, loff_t *off)
131 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
132 struct lov_desc *desc;
136 LASSERT(dev != NULL);
137 desc = &dev->u.lov.desc;
138 rc = lprocfs_str_to_s64(buffer, count, &val);
141 if (val < INT_MIN || val > INT_MAX)
145 lov_fix_desc_pattern(&pattern);
146 desc->ld_pattern = pattern;
150 LPROC_SEQ_FOPS(lov_stripetype);
152 static int lov_stripecount_seq_show(struct seq_file *m, void *v)
154 struct obd_device *dev = (struct obd_device *)m->private;
155 struct lov_desc *desc;
157 LASSERT(dev != NULL);
158 desc = &dev->u.lov.desc;
159 seq_printf(m, "%d\n",
160 (__s16)(desc->ld_default_stripe_count + 1) - 1);
164 static ssize_t lov_stripecount_seq_write(struct file *file,
165 const char __user *buffer,
166 size_t count, loff_t *off)
168 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
169 struct lov_desc *desc;
174 LASSERT(dev != NULL);
175 desc = &dev->u.lov.desc;
176 rc = lprocfs_str_to_s64(buffer, count, &val);
183 lov_fix_desc_stripe_count(&stripe_count);
184 desc->ld_default_stripe_count = stripe_count;
188 LPROC_SEQ_FOPS(lov_stripecount);
190 static int lov_numobd_seq_show(struct seq_file *m, void *v)
192 struct obd_device *dev = (struct obd_device*)m->private;
193 struct lov_desc *desc;
195 LASSERT(dev != NULL);
196 desc = &dev->u.lov.desc;
197 seq_printf(m, "%u\n", desc->ld_tgt_count);
200 LPROC_SEQ_FOPS_RO(lov_numobd);
202 static int lov_activeobd_seq_show(struct seq_file *m, void *v)
204 struct obd_device* dev = (struct obd_device*)m->private;
205 struct lov_desc *desc;
207 LASSERT(dev != NULL);
208 desc = &dev->u.lov.desc;
209 seq_printf(m, "%u\n", desc->ld_active_tgt_count);
212 LPROC_SEQ_FOPS_RO(lov_activeobd);
214 static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
216 struct obd_device *dev = m->private;
219 LASSERT(dev != NULL);
221 seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
224 LPROC_SEQ_FOPS_RO(lov_desc_uuid);
226 static void *lov_tgt_seq_start(struct seq_file *p, 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];
239 static void lov_tgt_seq_stop(struct seq_file *p, void *v)
243 static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
245 struct obd_device *dev = p->private;
246 struct lov_obd *lov = &dev->u.lov;
248 while (++*pos < lov->desc.ld_tgt_count) {
249 if (lov->lov_tgts[*pos])
250 return lov->lov_tgts[*pos];
255 static int lov_tgt_seq_show(struct seq_file *p, void *v)
257 struct lov_tgt_desc *tgt = v;
258 seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_index,
259 obd_uuid2str(&tgt->ltd_uuid),
260 tgt->ltd_active ? "" : "IN");
264 static const struct seq_operations lov_tgt_sops = {
265 .start = lov_tgt_seq_start,
266 .stop = lov_tgt_seq_stop,
267 .next = lov_tgt_seq_next,
268 .show = lov_tgt_seq_show,
271 static int lov_target_seq_open(struct inode *inode, struct file *file)
273 struct seq_file *seq;
276 rc = LPROCFS_ENTRY_CHECK(inode);
280 rc = seq_open(file, &lov_tgt_sops);
284 seq = file->private_data;
285 seq->private = PDE_DATA(inode);
289 LPROC_SEQ_FOPS_RO_TYPE(lov, uuid);
290 LPROC_SEQ_FOPS_RO_TYPE(lov, filestotal);
291 LPROC_SEQ_FOPS_RO_TYPE(lov, filesfree);
292 LPROC_SEQ_FOPS_RO_TYPE(lov, blksize);
293 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytestotal);
294 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesfree);
295 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesavail);
297 struct lprocfs_vars lprocfs_lov_obd_vars[] = {
299 .fops = &lov_uuid_fops },
300 { .name = "stripesize",
301 .fops = &lov_stripesize_fops },
302 { .name = "stripeoffset",
303 .fops = &lov_stripeoffset_fops },
304 { .name = "stripecount",
305 .fops = &lov_stripecount_fops },
306 { .name = "stripetype",
307 .fops = &lov_stripetype_fops },
309 .fops = &lov_numobd_fops },
310 { .name = "activeobd",
311 .fops = &lov_activeobd_fops },
312 { .name = "filestotal",
313 .fops = &lov_filestotal_fops },
314 { .name = "filesfree",
315 .fops = &lov_filesfree_fops },
316 { .name = "blocksize",
317 .fops = &lov_blksize_fops },
318 { .name = "kbytestotal",
319 .fops = &lov_kbytestotal_fops },
320 { .name = "kbytesfree",
321 .fops = &lov_kbytesfree_fops },
322 { .name = "kbytesavail",
323 .fops = &lov_kbytesavail_fops },
324 { .name = "desc_uuid",
325 .fops = &lov_desc_uuid_fops },
329 struct file_operations lov_proc_target_fops = {
330 .owner = THIS_MODULE,
331 .open = lov_target_seq_open,
334 .release = lprocfs_seq_release,
336 #endif /* CONFIG_PROC_FS */