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
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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.
28 * Use is subject to license terms.
30 * Copyright (c) 2012, 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 return seq_printf(m, LPU64"\n", desc->ld_default_stripe_size);
57 static ssize_t lov_stripesize_seq_write(struct file *file,
58 const char __user *buffer,
59 size_t count, loff_t *off)
61 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
62 struct lov_desc *desc;
67 desc = &dev->u.lov.desc;
68 rc = lprocfs_write_u64_helper(buffer, count, &val);
72 lov_fix_desc_stripe_size(&val);
73 desc->ld_default_stripe_size = val;
76 LPROC_SEQ_FOPS(lov_stripesize);
78 static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
80 struct obd_device *dev = (struct obd_device *)m->private;
81 struct lov_desc *desc;
84 desc = &dev->u.lov.desc;
85 return seq_printf(m, LPU64"\n", desc->ld_default_stripe_offset);
88 static ssize_t lov_stripeoffset_seq_write(struct file *file,
89 const char __user *buffer,
90 size_t count, loff_t *off)
92 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
93 struct lov_desc *desc;
98 desc = &dev->u.lov.desc;
99 rc = lprocfs_write_u64_helper(buffer, count, &val);
103 desc->ld_default_stripe_offset = val;
106 LPROC_SEQ_FOPS(lov_stripeoffset);
108 static int lov_stripetype_seq_show(struct seq_file *m, void *v)
110 struct obd_device* dev = (struct obd_device*)m->private;
111 struct lov_desc *desc;
113 LASSERT(dev != NULL);
114 desc = &dev->u.lov.desc;
115 return seq_printf(m, "%u\n", desc->ld_pattern);
118 static ssize_t lov_stripetype_seq_write(struct file *file,
119 const char __user *buffer,
120 size_t count, loff_t *off)
122 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
123 struct lov_desc *desc;
126 LASSERT(dev != NULL);
127 desc = &dev->u.lov.desc;
128 rc = lprocfs_write_helper(buffer, count, &val);
132 lov_fix_desc_pattern(&val);
133 desc->ld_pattern = val;
136 LPROC_SEQ_FOPS(lov_stripetype);
138 static int lov_stripecount_seq_show(struct seq_file *m, void *v)
140 struct obd_device *dev = (struct obd_device *)m->private;
141 struct lov_desc *desc;
143 LASSERT(dev != NULL);
144 desc = &dev->u.lov.desc;
145 return seq_printf(m, "%d\n",
146 (__s16)(desc->ld_default_stripe_count + 1) - 1);
149 static ssize_t lov_stripecount_seq_write(struct file *file,
150 const char __user *buffer,
151 size_t count, loff_t *off)
153 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
154 struct lov_desc *desc;
157 LASSERT(dev != NULL);
158 desc = &dev->u.lov.desc;
159 rc = lprocfs_write_helper(buffer, count, &val);
163 lov_fix_desc_stripe_count(&val);
164 desc->ld_default_stripe_count = val;
167 LPROC_SEQ_FOPS(lov_stripecount);
169 static int lov_numobd_seq_show(struct seq_file *m, void *v)
171 struct obd_device *dev = (struct obd_device*)m->private;
172 struct lov_desc *desc;
174 LASSERT(dev != NULL);
175 desc = &dev->u.lov.desc;
176 return seq_printf(m, "%u\n", desc->ld_tgt_count);
178 LPROC_SEQ_FOPS_RO(lov_numobd);
180 static int lov_activeobd_seq_show(struct seq_file *m, void *v)
182 struct obd_device* dev = (struct obd_device*)m->private;
183 struct lov_desc *desc;
185 LASSERT(dev != NULL);
186 desc = &dev->u.lov.desc;
187 return seq_printf(m, "%u\n", desc->ld_active_tgt_count);
189 LPROC_SEQ_FOPS_RO(lov_activeobd);
191 static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
193 struct obd_device *dev = m->private;
196 LASSERT(dev != NULL);
198 return seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
200 LPROC_SEQ_FOPS_RO(lov_desc_uuid);
202 static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos)
204 struct obd_device *dev = p->private;
205 struct lov_obd *lov = &dev->u.lov;
207 while (*pos < lov->desc.ld_tgt_count) {
208 if (lov->lov_tgts[*pos])
209 return lov->lov_tgts[*pos];
215 static void lov_tgt_seq_stop(struct seq_file *p, void *v)
219 static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
221 struct obd_device *dev = p->private;
222 struct lov_obd *lov = &dev->u.lov;
224 while (++*pos < lov->desc.ld_tgt_count) {
225 if (lov->lov_tgts[*pos])
226 return lov->lov_tgts[*pos];
231 static int lov_tgt_seq_show(struct seq_file *p, void *v)
233 struct lov_tgt_desc *tgt = v;
234 return seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_index,
235 obd_uuid2str(&tgt->ltd_uuid),
236 tgt->ltd_active ? "" : "IN");
239 struct seq_operations lov_tgt_sops = {
240 .start = lov_tgt_seq_start,
241 .stop = lov_tgt_seq_stop,
242 .next = lov_tgt_seq_next,
243 .show = lov_tgt_seq_show,
246 static int lov_target_seq_open(struct inode *inode, struct file *file)
248 struct seq_file *seq;
251 LPROCFS_ENTRY_CHECK(PDE(inode));
252 rc = seq_open(file, &lov_tgt_sops);
256 seq = file->private_data;
257 seq->private = PDE_DATA(inode);
261 LPROC_SEQ_FOPS_RO_TYPE(lov, uuid);
262 LPROC_SEQ_FOPS_RO_TYPE(lov, filestotal);
263 LPROC_SEQ_FOPS_RO_TYPE(lov, filesfree);
264 LPROC_SEQ_FOPS_RO_TYPE(lov, blksize);
265 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytestotal);
266 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesfree);
267 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesavail);
269 struct lprocfs_seq_vars lprocfs_lov_obd_vars[] = {
271 .fops = &lov_uuid_fops },
272 { .name = "stripesize",
273 .fops = &lov_stripesize_fops },
274 { .name = "stripeoffset",
275 .fops = &lov_stripeoffset_fops },
276 { .name = "stripecount",
277 .fops = &lov_stripecount_fops },
278 { .name = "stripetype",
279 .fops = &lov_stripetype_fops },
281 .fops = &lov_numobd_fops },
282 { .name = "activeobd",
283 .fops = &lov_activeobd_fops },
284 { .name = "filestotal",
285 .fops = &lov_filestotal_fops },
286 { .name = "filesfree",
287 .fops = &lov_filesfree_fops },
288 { .name = "blocksize",
289 .fops = &lov_blksize_fops },
290 { .name = "kbytestotal",
291 .fops = &lov_kbytestotal_fops },
292 { .name = "kbytesfree",
293 .fops = &lov_kbytesfree_fops },
294 { .name = "kbytesavail",
295 .fops = &lov_kbytesavail_fops },
296 { .name = "desc_uuid",
297 .fops = &lov_desc_uuid_fops },
301 struct file_operations lov_proc_target_fops = {
302 .owner = THIS_MODULE,
303 .open = lov_target_seq_open,
306 .release = lprocfs_seq_release,