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36#define DEBUG_SUBSYSTEM S_CLASS
37
38#include <linux/statfs.h>
39#include "../include/lprocfs_status.h"
40#include "../include/obd_class.h"
41#include <linux/seq_file.h>
42#include "lov_internal.h"
43
44static int lov_stripesize_seq_show(struct seq_file *m, void *v)
45{
46 struct obd_device *dev = (struct obd_device *)m->private;
47 struct lov_desc *desc;
48
49 LASSERT(dev != NULL);
50 desc = &dev->u.lov.desc;
51 seq_printf(m, "%llu\n", desc->ld_default_stripe_size);
52 return 0;
53}
54
55static ssize_t lov_stripesize_seq_write(struct file *file,
56 const char __user *buffer,
57 size_t count, loff_t *off)
58{
59 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
60 struct lov_desc *desc;
61 __u64 val;
62 int rc;
63
64 LASSERT(dev != NULL);
65 desc = &dev->u.lov.desc;
66 rc = lprocfs_write_u64_helper(buffer, count, &val);
67 if (rc)
68 return rc;
69
70 lov_fix_desc_stripe_size(&val);
71 desc->ld_default_stripe_size = val;
72 return count;
73}
74LPROC_SEQ_FOPS(lov_stripesize);
75
76static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
77{
78 struct obd_device *dev = (struct obd_device *)m->private;
79 struct lov_desc *desc;
80
81 LASSERT(dev != NULL);
82 desc = &dev->u.lov.desc;
83 seq_printf(m, "%llu\n", desc->ld_default_stripe_offset);
84 return 0;
85}
86
87static ssize_t lov_stripeoffset_seq_write(struct file *file,
88 const char __user *buffer,
89 size_t count, loff_t *off)
90{
91 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
92 struct lov_desc *desc;
93 __u64 val;
94 int rc;
95
96 LASSERT(dev != NULL);
97 desc = &dev->u.lov.desc;
98 rc = lprocfs_write_u64_helper(buffer, count, &val);
99 if (rc)
100 return rc;
101
102 desc->ld_default_stripe_offset = val;
103 return count;
104}
105LPROC_SEQ_FOPS(lov_stripeoffset);
106
107static int lov_stripetype_seq_show(struct seq_file *m, void *v)
108{
109 struct obd_device *dev = (struct obd_device *)m->private;
110 struct lov_desc *desc;
111
112 LASSERT(dev != NULL);
113 desc = &dev->u.lov.desc;
114 seq_printf(m, "%u\n", desc->ld_pattern);
115 return 0;
116}
117
118static ssize_t lov_stripetype_seq_write(struct file *file,
119 const char __user *buffer,
120 size_t count, loff_t *off)
121{
122 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
123 struct lov_desc *desc;
124 int val, rc;
125
126 LASSERT(dev != NULL);
127 desc = &dev->u.lov.desc;
128 rc = lprocfs_write_helper(buffer, count, &val);
129 if (rc)
130 return rc;
131
132 lov_fix_desc_pattern(&val);
133 desc->ld_pattern = val;
134 return count;
135}
136LPROC_SEQ_FOPS(lov_stripetype);
137
138static int lov_stripecount_seq_show(struct seq_file *m, void *v)
139{
140 struct obd_device *dev = (struct obd_device *)m->private;
141 struct lov_desc *desc;
142
143 LASSERT(dev != NULL);
144 desc = &dev->u.lov.desc;
145 seq_printf(m, "%d\n", (__s16)(desc->ld_default_stripe_count + 1) - 1);
146 return 0;
147}
148
149static ssize_t lov_stripecount_seq_write(struct file *file,
150 const char __user *buffer,
151 size_t count, loff_t *off)
152{
153 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
154 struct lov_desc *desc;
155 int val, rc;
156
157 LASSERT(dev != NULL);
158 desc = &dev->u.lov.desc;
159 rc = lprocfs_write_helper(buffer, count, &val);
160 if (rc)
161 return rc;
162
163 lov_fix_desc_stripe_count(&val);
164 desc->ld_default_stripe_count = val;
165 return count;
166}
167LPROC_SEQ_FOPS(lov_stripecount);
168
169static int lov_numobd_seq_show(struct seq_file *m, void *v)
170{
171 struct obd_device *dev = (struct obd_device *)m->private;
172 struct lov_desc *desc;
173
174 LASSERT(dev != NULL);
175 desc = &dev->u.lov.desc;
176 seq_printf(m, "%u\n", desc->ld_tgt_count);
177 return 0;
178}
179LPROC_SEQ_FOPS_RO(lov_numobd);
180
181static int lov_activeobd_seq_show(struct seq_file *m, void *v)
182{
183 struct obd_device *dev = (struct obd_device *)m->private;
184 struct lov_desc *desc;
185
186 LASSERT(dev != NULL);
187 desc = &dev->u.lov.desc;
188 seq_printf(m, "%u\n", desc->ld_active_tgt_count);
189 return 0;
190}
191LPROC_SEQ_FOPS_RO(lov_activeobd);
192
193static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
194{
195 struct obd_device *dev = (struct obd_device *)m->private;
196 struct lov_obd *lov;
197
198 LASSERT(dev != NULL);
199 lov = &dev->u.lov;
200 seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
201 return 0;
202}
203LPROC_SEQ_FOPS_RO(lov_desc_uuid);
204
205static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos)
206{
207 struct obd_device *dev = p->private;
208 struct lov_obd *lov = &dev->u.lov;
209
210 while (*pos < lov->desc.ld_tgt_count) {
211 if (lov->lov_tgts[*pos])
212 return lov->lov_tgts[*pos];
213 ++*pos;
214 }
215 return NULL;
216}
217
218static void lov_tgt_seq_stop(struct seq_file *p, void *v)
219{
220}
221
222static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
223{
224 struct obd_device *dev = p->private;
225 struct lov_obd *lov = &dev->u.lov;
226
227 while (++*pos < lov->desc.ld_tgt_count) {
228 if (lov->lov_tgts[*pos])
229 return lov->lov_tgts[*pos];
230 }
231 return NULL;
232}
233
234static int lov_tgt_seq_show(struct seq_file *p, void *v)
235{
236 struct lov_tgt_desc *tgt = v;
237
238 seq_printf(p, "%d: %s %sACTIVE\n",
239 tgt->ltd_index, obd_uuid2str(&tgt->ltd_uuid),
240 tgt->ltd_active ? "" : "IN");
241 return 0;
242}
243
244static const struct seq_operations lov_tgt_sops = {
245 .start = lov_tgt_seq_start,
246 .stop = lov_tgt_seq_stop,
247 .next = lov_tgt_seq_next,
248 .show = lov_tgt_seq_show,
249};
250
251static int lov_target_seq_open(struct inode *inode, struct file *file)
252{
253 struct seq_file *seq;
254 int rc;
255
256 rc = seq_open(file, &lov_tgt_sops);
257 if (rc)
258 return rc;
259
260 seq = file->private_data;
261 seq->private = PDE_DATA(inode);
262 return 0;
263}
264
265LPROC_SEQ_FOPS_RO_TYPE(lov, uuid);
266LPROC_SEQ_FOPS_RO_TYPE(lov, filestotal);
267LPROC_SEQ_FOPS_RO_TYPE(lov, filesfree);
268LPROC_SEQ_FOPS_RO_TYPE(lov, blksize);
269LPROC_SEQ_FOPS_RO_TYPE(lov, kbytestotal);
270LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesfree);
271LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesavail);
272
273static struct lprocfs_vars lprocfs_lov_obd_vars[] = {
274 { "uuid", &lov_uuid_fops, NULL, 0 },
275 { "stripesize", &lov_stripesize_fops, NULL },
276 { "stripeoffset", &lov_stripeoffset_fops, NULL },
277 { "stripecount", &lov_stripecount_fops, NULL },
278 { "stripetype", &lov_stripetype_fops, NULL },
279 { "numobd", &lov_numobd_fops, NULL, 0 },
280 { "activeobd", &lov_activeobd_fops, NULL, 0 },
281 { "filestotal", &lov_filestotal_fops, NULL, 0 },
282 { "filesfree", &lov_filesfree_fops, NULL, 0 },
283
284 { "blocksize", &lov_blksize_fops, NULL, 0 },
285 { "kbytestotal", &lov_kbytestotal_fops, NULL, 0 },
286 { "kbytesfree", &lov_kbytesfree_fops, NULL, 0 },
287 { "kbytesavail", &lov_kbytesavail_fops, NULL, 0 },
288 { "desc_uuid", &lov_desc_uuid_fops, NULL, 0 },
289 { NULL }
290};
291
292LPROC_SEQ_FOPS_RO_TYPE(lov, numrefs);
293
294static struct lprocfs_vars lprocfs_lov_module_vars[] = {
295 { "num_refs", &lov_numrefs_fops, NULL, 0 },
296 { NULL }
297};
298
299void lprocfs_lov_init_vars(struct lprocfs_static_vars *lvars)
300{
301 lvars->module_vars = lprocfs_lov_module_vars;
302 lvars->obd_vars = lprocfs_lov_obd_vars;
303}
304
305const struct file_operations lov_proc_target_fops = {
306 .owner = THIS_MODULE,
307 .open = lov_target_seq_open,
308 .read = seq_read,
309 .llseek = seq_lseek,
310 .release = lprocfs_seq_release,
311};
312
