Commit | Line | Data |
---|---|---|
d7e09d03 PT |
1 | /* |
2 | * GPL HEADER START | |
3 | * | |
4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 | * | |
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. | |
9 | * | |
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). | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * version 2 along with this program; If not, see | |
6a5b99a4 | 18 | * http://www.gnu.org/licenses/gpl-2.0.html |
d7e09d03 | 19 | * |
d7e09d03 PT |
20 | * GPL HEADER END |
21 | */ | |
22 | /* | |
23 | * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. | |
24 | * Use is subject to license terms. | |
25 | * | |
1dc563a6 | 26 | * Copyright (c) 2011, 2015, Intel Corporation. |
d7e09d03 PT |
27 | */ |
28 | /* | |
29 | * This file is part of Lustre, http://www.lustre.org/ | |
30 | * Lustre is a trademark of Sun Microsystems, Inc. | |
31 | */ | |
32 | #define DEBUG_SUBSYSTEM S_LLITE | |
33 | ||
67a235f5 GKH |
34 | #include "../include/lustre_lite.h" |
35 | #include "../include/lprocfs_status.h" | |
d7e09d03 | 36 | #include <linux/seq_file.h> |
67a235f5 | 37 | #include "../include/obd_support.h" |
d7e09d03 PT |
38 | |
39 | #include "llite_internal.h" | |
2d95f10e | 40 | #include "vvp_internal.h" |
d7e09d03 | 41 | |
42608246 | 42 | /* debugfs llite mount point registration */ |
b9c98cfa FF |
43 | static struct file_operations ll_rw_extents_stats_fops; |
44 | static struct file_operations ll_rw_extents_stats_pp_fops; | |
45 | static struct file_operations ll_rw_offset_stats_fops; | |
d7e09d03 | 46 | |
364bcfc8 OD |
47 | static ssize_t blocksize_show(struct kobject *kobj, struct attribute *attr, |
48 | char *buf) | |
d7e09d03 | 49 | { |
364bcfc8 OD |
50 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
51 | ll_kobj); | |
d7e09d03 PT |
52 | struct obd_statfs osfs; |
53 | int rc; | |
54 | ||
364bcfc8 | 55 | rc = ll_statfs_internal(sbi->ll_sb, &osfs, |
d7e09d03 PT |
56 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), |
57 | OBD_STATFS_NODELAY); | |
73bb1da6 | 58 | if (!rc) |
364bcfc8 | 59 | return sprintf(buf, "%u\n", osfs.os_bsize); |
d7e09d03 PT |
60 | |
61 | return rc; | |
62 | } | |
364bcfc8 | 63 | LUSTRE_RO_ATTR(blocksize); |
d7e09d03 | 64 | |
5804b11e OD |
65 | static ssize_t kbytestotal_show(struct kobject *kobj, struct attribute *attr, |
66 | char *buf) | |
d7e09d03 | 67 | { |
5804b11e OD |
68 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
69 | ll_kobj); | |
d7e09d03 PT |
70 | struct obd_statfs osfs; |
71 | int rc; | |
72 | ||
5804b11e | 73 | rc = ll_statfs_internal(sbi->ll_sb, &osfs, |
d7e09d03 PT |
74 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), |
75 | OBD_STATFS_NODELAY); | |
76 | if (!rc) { | |
77 | __u32 blk_size = osfs.os_bsize >> 10; | |
78 | __u64 result = osfs.os_blocks; | |
79 | ||
80 | while (blk_size >>= 1) | |
81 | result <<= 1; | |
82 | ||
5804b11e | 83 | rc = sprintf(buf, "%llu\n", result); |
d7e09d03 | 84 | } |
ab75fb2d | 85 | |
d7e09d03 | 86 | return rc; |
d7e09d03 | 87 | } |
5804b11e | 88 | LUSTRE_RO_ATTR(kbytestotal); |
d7e09d03 | 89 | |
5804b11e OD |
90 | static ssize_t kbytesfree_show(struct kobject *kobj, struct attribute *attr, |
91 | char *buf) | |
d7e09d03 | 92 | { |
5804b11e OD |
93 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
94 | ll_kobj); | |
d7e09d03 PT |
95 | struct obd_statfs osfs; |
96 | int rc; | |
97 | ||
5804b11e | 98 | rc = ll_statfs_internal(sbi->ll_sb, &osfs, |
d7e09d03 PT |
99 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), |
100 | OBD_STATFS_NODELAY); | |
101 | if (!rc) { | |
102 | __u32 blk_size = osfs.os_bsize >> 10; | |
103 | __u64 result = osfs.os_bfree; | |
104 | ||
105 | while (blk_size >>= 1) | |
106 | result <<= 1; | |
107 | ||
5804b11e | 108 | rc = sprintf(buf, "%llu\n", result); |
d7e09d03 | 109 | } |
ab75fb2d | 110 | |
d7e09d03 PT |
111 | return rc; |
112 | } | |
5804b11e | 113 | LUSTRE_RO_ATTR(kbytesfree); |
d7e09d03 | 114 | |
5804b11e OD |
115 | static ssize_t kbytesavail_show(struct kobject *kobj, struct attribute *attr, |
116 | char *buf) | |
d7e09d03 | 117 | { |
5804b11e OD |
118 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
119 | ll_kobj); | |
d7e09d03 PT |
120 | struct obd_statfs osfs; |
121 | int rc; | |
122 | ||
5804b11e | 123 | rc = ll_statfs_internal(sbi->ll_sb, &osfs, |
d7e09d03 PT |
124 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), |
125 | OBD_STATFS_NODELAY); | |
126 | if (!rc) { | |
127 | __u32 blk_size = osfs.os_bsize >> 10; | |
128 | __u64 result = osfs.os_bavail; | |
129 | ||
130 | while (blk_size >>= 1) | |
131 | result <<= 1; | |
132 | ||
5804b11e | 133 | rc = sprintf(buf, "%llu\n", result); |
d7e09d03 | 134 | } |
ab75fb2d | 135 | |
d7e09d03 PT |
136 | return rc; |
137 | } | |
5804b11e | 138 | LUSTRE_RO_ATTR(kbytesavail); |
d7e09d03 | 139 | |
7267ec0d OD |
140 | static ssize_t filestotal_show(struct kobject *kobj, struct attribute *attr, |
141 | char *buf) | |
d7e09d03 | 142 | { |
7267ec0d OD |
143 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
144 | ll_kobj); | |
d7e09d03 PT |
145 | struct obd_statfs osfs; |
146 | int rc; | |
147 | ||
7267ec0d | 148 | rc = ll_statfs_internal(sbi->ll_sb, &osfs, |
d7e09d03 PT |
149 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), |
150 | OBD_STATFS_NODELAY); | |
73bb1da6 | 151 | if (!rc) |
7267ec0d | 152 | return sprintf(buf, "%llu\n", osfs.os_files); |
ab75fb2d | 153 | |
d7e09d03 PT |
154 | return rc; |
155 | } | |
7267ec0d | 156 | LUSTRE_RO_ATTR(filestotal); |
d7e09d03 | 157 | |
7267ec0d OD |
158 | static ssize_t filesfree_show(struct kobject *kobj, struct attribute *attr, |
159 | char *buf) | |
d7e09d03 | 160 | { |
7267ec0d OD |
161 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
162 | ll_kobj); | |
d7e09d03 PT |
163 | struct obd_statfs osfs; |
164 | int rc; | |
165 | ||
7267ec0d | 166 | rc = ll_statfs_internal(sbi->ll_sb, &osfs, |
d7e09d03 PT |
167 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), |
168 | OBD_STATFS_NODELAY); | |
73bb1da6 | 169 | if (!rc) |
7267ec0d | 170 | return sprintf(buf, "%llu\n", osfs.os_ffree); |
ab75fb2d | 171 | |
d7e09d03 | 172 | return rc; |
d7e09d03 | 173 | } |
7267ec0d | 174 | LUSTRE_RO_ATTR(filesfree); |
d7e09d03 | 175 | |
95e1b6b0 OD |
176 | static ssize_t client_type_show(struct kobject *kobj, struct attribute *attr, |
177 | char *buf) | |
d7e09d03 | 178 | { |
341f1f0a | 179 | return sprintf(buf, "local client\n"); |
d7e09d03 | 180 | } |
95e1b6b0 | 181 | LUSTRE_RO_ATTR(client_type); |
d7e09d03 | 182 | |
0cee6676 OD |
183 | static ssize_t fstype_show(struct kobject *kobj, struct attribute *attr, |
184 | char *buf) | |
d7e09d03 | 185 | { |
0cee6676 OD |
186 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
187 | ll_kobj); | |
d7e09d03 | 188 | |
0cee6676 | 189 | return sprintf(buf, "%s\n", sbi->ll_sb->s_type->name); |
d7e09d03 | 190 | } |
0cee6676 | 191 | LUSTRE_RO_ATTR(fstype); |
d7e09d03 | 192 | |
ec55a629 OD |
193 | static ssize_t uuid_show(struct kobject *kobj, struct attribute *attr, |
194 | char *buf) | |
d7e09d03 | 195 | { |
ec55a629 OD |
196 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
197 | ll_kobj); | |
d7e09d03 | 198 | |
ec55a629 | 199 | return sprintf(buf, "%s\n", sbi->ll_sb_uuid.uuid); |
d7e09d03 | 200 | } |
ec55a629 | 201 | LUSTRE_RO_ATTR(uuid); |
d7e09d03 | 202 | |
73bb1da6 | 203 | static int ll_site_stats_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 204 | { |
73bb1da6 | 205 | struct super_block *sb = m->private; |
d7e09d03 PT |
206 | |
207 | /* | |
208 | * See description of statistical counters in struct cl_site, and | |
209 | * struct lu_site. | |
210 | */ | |
73bb1da6 | 211 | return cl_site_stats_print(lu2cl_site(ll_s2sbi(sb)->ll_site), m); |
d7e09d03 | 212 | } |
c9f6bb96 | 213 | |
73bb1da6 | 214 | LPROC_SEQ_FOPS_RO(ll_site_stats); |
d7e09d03 | 215 | |
e1a1df5e OD |
216 | static ssize_t max_read_ahead_mb_show(struct kobject *kobj, |
217 | struct attribute *attr, char *buf) | |
d7e09d03 | 218 | { |
e1a1df5e OD |
219 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
220 | ll_kobj); | |
d7e09d03 PT |
221 | long pages_number; |
222 | int mult; | |
223 | ||
224 | spin_lock(&sbi->ll_lock); | |
225 | pages_number = sbi->ll_ra_info.ra_max_pages; | |
226 | spin_unlock(&sbi->ll_lock); | |
227 | ||
09cbfeaf | 228 | mult = 1 << (20 - PAGE_SHIFT); |
e1a1df5e | 229 | return lprocfs_read_frac_helper(buf, PAGE_SIZE, pages_number, mult); |
d7e09d03 PT |
230 | } |
231 | ||
e1a1df5e OD |
232 | static ssize_t max_read_ahead_mb_store(struct kobject *kobj, |
233 | struct attribute *attr, | |
234 | const char *buffer, | |
235 | size_t count) | |
d7e09d03 | 236 | { |
e1a1df5e OD |
237 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
238 | ll_kobj); | |
239 | int rc; | |
240 | unsigned long pages_number; | |
d7e09d03 | 241 | |
e1a1df5e | 242 | rc = kstrtoul(buffer, 10, &pages_number); |
d7e09d03 PT |
243 | if (rc) |
244 | return rc; | |
245 | ||
09cbfeaf | 246 | pages_number *= 1 << (20 - PAGE_SHIFT); /* MB -> pages */ |
e1a1df5e OD |
247 | |
248 | if (pages_number > totalram_pages / 2) { | |
d7e09d03 | 249 | CERROR("can't set file readahead more than %lu MB\n", |
09cbfeaf | 250 | totalram_pages >> (20 - PAGE_SHIFT + 1)); /*1/2 of RAM*/ |
d7e09d03 PT |
251 | return -ERANGE; |
252 | } | |
253 | ||
254 | spin_lock(&sbi->ll_lock); | |
255 | sbi->ll_ra_info.ra_max_pages = pages_number; | |
256 | spin_unlock(&sbi->ll_lock); | |
257 | ||
258 | return count; | |
259 | } | |
e1a1df5e | 260 | LUSTRE_RW_ATTR(max_read_ahead_mb); |
d7e09d03 | 261 | |
0e6c5a21 OD |
262 | static ssize_t max_read_ahead_per_file_mb_show(struct kobject *kobj, |
263 | struct attribute *attr, | |
264 | char *buf) | |
d7e09d03 | 265 | { |
0e6c5a21 OD |
266 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
267 | ll_kobj); | |
d7e09d03 PT |
268 | long pages_number; |
269 | int mult; | |
270 | ||
271 | spin_lock(&sbi->ll_lock); | |
272 | pages_number = sbi->ll_ra_info.ra_max_pages_per_file; | |
273 | spin_unlock(&sbi->ll_lock); | |
274 | ||
09cbfeaf | 275 | mult = 1 << (20 - PAGE_SHIFT); |
0e6c5a21 | 276 | return lprocfs_read_frac_helper(buf, PAGE_SIZE, pages_number, mult); |
d7e09d03 PT |
277 | } |
278 | ||
0e6c5a21 OD |
279 | static ssize_t max_read_ahead_per_file_mb_store(struct kobject *kobj, |
280 | struct attribute *attr, | |
281 | const char *buffer, | |
282 | size_t count) | |
d7e09d03 | 283 | { |
0e6c5a21 OD |
284 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
285 | ll_kobj); | |
286 | int rc; | |
287 | unsigned long pages_number; | |
d7e09d03 | 288 | |
0e6c5a21 | 289 | rc = kstrtoul(buffer, 10, &pages_number); |
d7e09d03 PT |
290 | if (rc) |
291 | return rc; | |
292 | ||
0e6c5a21 | 293 | if (pages_number > sbi->ll_ra_info.ra_max_pages) { |
2d00bd17 | 294 | CERROR("can't set file readahead more than max_read_ahead_mb %lu MB\n", |
d7e09d03 PT |
295 | sbi->ll_ra_info.ra_max_pages); |
296 | return -ERANGE; | |
297 | } | |
298 | ||
299 | spin_lock(&sbi->ll_lock); | |
300 | sbi->ll_ra_info.ra_max_pages_per_file = pages_number; | |
301 | spin_unlock(&sbi->ll_lock); | |
302 | ||
303 | return count; | |
304 | } | |
0e6c5a21 | 305 | LUSTRE_RW_ATTR(max_read_ahead_per_file_mb); |
d7e09d03 | 306 | |
ec469235 OD |
307 | static ssize_t max_read_ahead_whole_mb_show(struct kobject *kobj, |
308 | struct attribute *attr, | |
309 | char *buf) | |
d7e09d03 | 310 | { |
ec469235 OD |
311 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
312 | ll_kobj); | |
d7e09d03 PT |
313 | long pages_number; |
314 | int mult; | |
315 | ||
316 | spin_lock(&sbi->ll_lock); | |
317 | pages_number = sbi->ll_ra_info.ra_max_read_ahead_whole_pages; | |
318 | spin_unlock(&sbi->ll_lock); | |
319 | ||
09cbfeaf | 320 | mult = 1 << (20 - PAGE_SHIFT); |
ec469235 | 321 | return lprocfs_read_frac_helper(buf, PAGE_SIZE, pages_number, mult); |
d7e09d03 PT |
322 | } |
323 | ||
ec469235 OD |
324 | static ssize_t max_read_ahead_whole_mb_store(struct kobject *kobj, |
325 | struct attribute *attr, | |
326 | const char *buffer, | |
327 | size_t count) | |
d7e09d03 | 328 | { |
ec469235 OD |
329 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
330 | ll_kobj); | |
331 | int rc; | |
332 | unsigned long pages_number; | |
d7e09d03 | 333 | |
ec469235 | 334 | rc = kstrtoul(buffer, 10, &pages_number); |
d7e09d03 PT |
335 | if (rc) |
336 | return rc; | |
337 | ||
338 | /* Cap this at the current max readahead window size, the readahead | |
c0894c6c OD |
339 | * algorithm does this anyway so it's pointless to set it larger. |
340 | */ | |
ec469235 | 341 | if (pages_number > sbi->ll_ra_info.ra_max_pages_per_file) { |
2d00bd17 | 342 | CERROR("can't set max_read_ahead_whole_mb more than max_read_ahead_per_file_mb: %lu\n", |
09cbfeaf | 343 | sbi->ll_ra_info.ra_max_pages_per_file >> (20 - PAGE_SHIFT)); |
d7e09d03 PT |
344 | return -ERANGE; |
345 | } | |
346 | ||
347 | spin_lock(&sbi->ll_lock); | |
348 | sbi->ll_ra_info.ra_max_read_ahead_whole_pages = pages_number; | |
349 | spin_unlock(&sbi->ll_lock); | |
350 | ||
351 | return count; | |
352 | } | |
ec469235 | 353 | LUSTRE_RW_ATTR(max_read_ahead_whole_mb); |
d7e09d03 | 354 | |
73bb1da6 | 355 | static int ll_max_cached_mb_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 356 | { |
73bb1da6 | 357 | struct super_block *sb = m->private; |
d7e09d03 | 358 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
1b02bde3 | 359 | struct cl_client_cache *cache = sbi->ll_cache; |
09cbfeaf | 360 | int shift = 20 - PAGE_SHIFT; |
d7e09d03 PT |
361 | int max_cached_mb; |
362 | int unused_mb; | |
363 | ||
d7e09d03 PT |
364 | max_cached_mb = cache->ccc_lru_max >> shift; |
365 | unused_mb = atomic_read(&cache->ccc_lru_left) >> shift; | |
8faeebdf JP |
366 | seq_printf(m, |
367 | "users: %d\n" | |
368 | "max_cached_mb: %d\n" | |
369 | "used_mb: %d\n" | |
370 | "unused_mb: %d\n" | |
371 | "reclaim_count: %u\n", | |
372 | atomic_read(&cache->ccc_users), | |
373 | max_cached_mb, | |
374 | max_cached_mb - unused_mb, | |
375 | unused_mb, | |
376 | cache->ccc_lru_shrinkers); | |
377 | return 0; | |
d7e09d03 PT |
378 | } |
379 | ||
a1e7e2d4 OD |
380 | static ssize_t ll_max_cached_mb_seq_write(struct file *file, |
381 | const char __user *buffer, | |
382 | size_t count, loff_t *off) | |
d7e09d03 | 383 | { |
73bb1da6 | 384 | struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
d7e09d03 | 385 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
1b02bde3 | 386 | struct cl_client_cache *cache = sbi->ll_cache; |
2579d8d0 JX |
387 | struct lu_env *env; |
388 | int refcheck; | |
d7e09d03 PT |
389 | int mult, rc, pages_number; |
390 | int diff = 0; | |
391 | int nrpages = 0; | |
a1e7e2d4 OD |
392 | char kernbuf[128]; |
393 | ||
394 | if (count >= sizeof(kernbuf)) | |
395 | return -EINVAL; | |
396 | ||
397 | if (copy_from_user(kernbuf, buffer, count)) | |
398 | return -EFAULT; | |
399 | kernbuf[count] = 0; | |
d7e09d03 | 400 | |
09cbfeaf | 401 | mult = 1 << (20 - PAGE_SHIFT); |
a1e7e2d4 OD |
402 | buffer += lprocfs_find_named_value(kernbuf, "max_cached_mb:", &count) - |
403 | kernbuf; | |
d7e09d03 PT |
404 | rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); |
405 | if (rc) | |
0a3bdb00 | 406 | return rc; |
d7e09d03 | 407 | |
4f6cc9ab | 408 | if (pages_number < 0 || pages_number > totalram_pages) { |
d7e09d03 PT |
409 | CERROR("%s: can't set max cache more than %lu MB\n", |
410 | ll_get_fsname(sb, NULL, 0), | |
09cbfeaf | 411 | totalram_pages >> (20 - PAGE_SHIFT)); |
0a3bdb00 | 412 | return -ERANGE; |
d7e09d03 PT |
413 | } |
414 | ||
d7e09d03 PT |
415 | spin_lock(&sbi->ll_lock); |
416 | diff = pages_number - cache->ccc_lru_max; | |
417 | spin_unlock(&sbi->ll_lock); | |
418 | ||
419 | /* easy - add more LRU slots. */ | |
420 | if (diff >= 0) { | |
421 | atomic_add(diff, &cache->ccc_lru_left); | |
34e1f2bb JL |
422 | rc = 0; |
423 | goto out; | |
d7e09d03 PT |
424 | } |
425 | ||
2579d8d0 JX |
426 | env = cl_env_get(&refcheck); |
427 | if (IS_ERR(env)) | |
428 | return 0; | |
429 | ||
d7e09d03 PT |
430 | diff = -diff; |
431 | while (diff > 0) { | |
432 | int tmp; | |
433 | ||
434 | /* reduce LRU budget from free slots. */ | |
435 | do { | |
436 | int ov, nv; | |
437 | ||
438 | ov = atomic_read(&cache->ccc_lru_left); | |
439 | if (ov == 0) | |
440 | break; | |
441 | ||
442 | nv = ov > diff ? ov - diff : 0; | |
305ec768 | 443 | rc = atomic_cmpxchg(&cache->ccc_lru_left, ov, nv); |
d7e09d03 PT |
444 | if (likely(ov == rc)) { |
445 | diff -= ov - nv; | |
446 | nrpages += ov - nv; | |
447 | break; | |
448 | } | |
449 | } while (1); | |
450 | ||
451 | if (diff <= 0) | |
452 | break; | |
453 | ||
6e16818b | 454 | if (!sbi->ll_dt_exp) { /* being initialized */ |
32cc01c4 JX |
455 | rc = 0; |
456 | goto out; | |
c2fcdf6c JX |
457 | } |
458 | ||
d7e09d03 PT |
459 | /* difficult - have to ask OSCs to drop LRU slots. */ |
460 | tmp = diff << 1; | |
2579d8d0 | 461 | rc = obd_set_info_async(env, sbi->ll_dt_exp, |
e15ba45d OD |
462 | sizeof(KEY_CACHE_LRU_SHRINK), |
463 | KEY_CACHE_LRU_SHRINK, | |
464 | sizeof(tmp), &tmp, NULL); | |
d7e09d03 PT |
465 | if (rc < 0) |
466 | break; | |
467 | } | |
2579d8d0 | 468 | cl_env_put(env, &refcheck); |
d7e09d03 PT |
469 | |
470 | out: | |
471 | if (rc >= 0) { | |
472 | spin_lock(&sbi->ll_lock); | |
473 | cache->ccc_lru_max = pages_number; | |
474 | spin_unlock(&sbi->ll_lock); | |
475 | rc = count; | |
476 | } else { | |
477 | atomic_add(nrpages, &cache->ccc_lru_left); | |
478 | } | |
479 | return rc; | |
480 | } | |
c9f6bb96 | 481 | |
73bb1da6 | 482 | LPROC_SEQ_FOPS(ll_max_cached_mb); |
d7e09d03 | 483 | |
40cc864a OD |
484 | static ssize_t checksum_pages_show(struct kobject *kobj, struct attribute *attr, |
485 | char *buf) | |
d7e09d03 | 486 | { |
40cc864a OD |
487 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
488 | ll_kobj); | |
d7e09d03 | 489 | |
40cc864a | 490 | return sprintf(buf, "%u\n", (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0); |
d7e09d03 PT |
491 | } |
492 | ||
40cc864a OD |
493 | static ssize_t checksum_pages_store(struct kobject *kobj, |
494 | struct attribute *attr, | |
495 | const char *buffer, | |
496 | size_t count) | |
d7e09d03 | 497 | { |
40cc864a OD |
498 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
499 | ll_kobj); | |
500 | int rc; | |
501 | unsigned long val; | |
d7e09d03 PT |
502 | |
503 | if (!sbi->ll_dt_exp) | |
504 | /* Not set up yet */ | |
505 | return -EAGAIN; | |
506 | ||
40cc864a | 507 | rc = kstrtoul(buffer, 10, &val); |
d7e09d03 PT |
508 | if (rc) |
509 | return rc; | |
510 | if (val) | |
511 | sbi->ll_flags |= LL_SBI_CHECKSUM; | |
512 | else | |
513 | sbi->ll_flags &= ~LL_SBI_CHECKSUM; | |
514 | ||
515 | rc = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM), | |
516 | KEY_CHECKSUM, sizeof(val), &val, NULL); | |
517 | if (rc) | |
518 | CWARN("Failed to set OSC checksum flags: %d\n", rc); | |
519 | ||
520 | return count; | |
521 | } | |
40cc864a | 522 | LUSTRE_RW_ATTR(checksum_pages); |
d7e09d03 | 523 | |
62cf4b13 OD |
524 | static ssize_t ll_rd_track_id(struct kobject *kobj, char *buf, |
525 | enum stats_track_type type) | |
d7e09d03 | 526 | { |
62cf4b13 OD |
527 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
528 | ll_kobj); | |
d7e09d03 | 529 | |
62cf4b13 OD |
530 | if (sbi->ll_stats_track_type == type) |
531 | return sprintf(buf, "%d\n", sbi->ll_stats_track_id); | |
532 | else if (sbi->ll_stats_track_type == STATS_TRACK_ALL) | |
533 | return sprintf(buf, "0 (all)\n"); | |
8faeebdf | 534 | else |
62cf4b13 | 535 | return sprintf(buf, "untracked\n"); |
d7e09d03 PT |
536 | } |
537 | ||
62cf4b13 OD |
538 | static ssize_t ll_wr_track_id(struct kobject *kobj, const char *buffer, |
539 | size_t count, | |
540 | enum stats_track_type type) | |
d7e09d03 | 541 | { |
62cf4b13 OD |
542 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
543 | ll_kobj); | |
544 | int rc; | |
545 | unsigned long pid; | |
d7e09d03 | 546 | |
62cf4b13 | 547 | rc = kstrtoul(buffer, 10, &pid); |
d7e09d03 PT |
548 | if (rc) |
549 | return rc; | |
62cf4b13 | 550 | sbi->ll_stats_track_id = pid; |
d7e09d03 | 551 | if (pid == 0) |
62cf4b13 | 552 | sbi->ll_stats_track_type = STATS_TRACK_ALL; |
d7e09d03 | 553 | else |
62cf4b13 OD |
554 | sbi->ll_stats_track_type = type; |
555 | lprocfs_clear_stats(sbi->ll_stats); | |
d7e09d03 PT |
556 | return count; |
557 | } | |
558 | ||
62cf4b13 OD |
559 | static ssize_t stats_track_pid_show(struct kobject *kobj, |
560 | struct attribute *attr, | |
561 | char *buf) | |
d7e09d03 | 562 | { |
62cf4b13 | 563 | return ll_rd_track_id(kobj, buf, STATS_TRACK_PID); |
d7e09d03 PT |
564 | } |
565 | ||
62cf4b13 OD |
566 | static ssize_t stats_track_pid_store(struct kobject *kobj, |
567 | struct attribute *attr, | |
568 | const char *buffer, | |
569 | size_t count) | |
d7e09d03 | 570 | { |
62cf4b13 | 571 | return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_PID); |
d7e09d03 | 572 | } |
62cf4b13 | 573 | LUSTRE_RW_ATTR(stats_track_pid); |
d7e09d03 | 574 | |
62cf4b13 OD |
575 | static ssize_t stats_track_ppid_show(struct kobject *kobj, |
576 | struct attribute *attr, | |
577 | char *buf) | |
d7e09d03 | 578 | { |
62cf4b13 | 579 | return ll_rd_track_id(kobj, buf, STATS_TRACK_PPID); |
d7e09d03 PT |
580 | } |
581 | ||
62cf4b13 OD |
582 | static ssize_t stats_track_ppid_store(struct kobject *kobj, |
583 | struct attribute *attr, | |
584 | const char *buffer, | |
585 | size_t count) | |
d7e09d03 | 586 | { |
62cf4b13 | 587 | return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_PPID); |
d7e09d03 | 588 | } |
62cf4b13 | 589 | LUSTRE_RW_ATTR(stats_track_ppid); |
d7e09d03 | 590 | |
62cf4b13 OD |
591 | static ssize_t stats_track_gid_show(struct kobject *kobj, |
592 | struct attribute *attr, | |
593 | char *buf) | |
d7e09d03 | 594 | { |
62cf4b13 | 595 | return ll_rd_track_id(kobj, buf, STATS_TRACK_GID); |
d7e09d03 PT |
596 | } |
597 | ||
62cf4b13 OD |
598 | static ssize_t stats_track_gid_store(struct kobject *kobj, |
599 | struct attribute *attr, | |
600 | const char *buffer, | |
601 | size_t count) | |
d7e09d03 | 602 | { |
62cf4b13 | 603 | return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_GID); |
d7e09d03 | 604 | } |
62cf4b13 | 605 | LUSTRE_RW_ATTR(stats_track_gid); |
d7e09d03 | 606 | |
4081a320 OD |
607 | static ssize_t statahead_max_show(struct kobject *kobj, |
608 | struct attribute *attr, | |
609 | char *buf) | |
d7e09d03 | 610 | { |
4081a320 OD |
611 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
612 | ll_kobj); | |
d7e09d03 | 613 | |
4081a320 | 614 | return sprintf(buf, "%u\n", sbi->ll_sa_max); |
d7e09d03 PT |
615 | } |
616 | ||
4081a320 OD |
617 | static ssize_t statahead_max_store(struct kobject *kobj, |
618 | struct attribute *attr, | |
619 | const char *buffer, | |
620 | size_t count) | |
d7e09d03 | 621 | { |
4081a320 OD |
622 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
623 | ll_kobj); | |
624 | int rc; | |
625 | unsigned long val; | |
d7e09d03 | 626 | |
4081a320 | 627 | rc = kstrtoul(buffer, 10, &val); |
d7e09d03 PT |
628 | if (rc) |
629 | return rc; | |
630 | ||
4081a320 | 631 | if (val <= LL_SA_RPC_MAX) |
d7e09d03 PT |
632 | sbi->ll_sa_max = val; |
633 | else | |
4081a320 | 634 | CERROR("Bad statahead_max value %lu. Valid values are in the range [0, %d]\n", |
2d00bd17 | 635 | val, LL_SA_RPC_MAX); |
d7e09d03 PT |
636 | |
637 | return count; | |
638 | } | |
4081a320 | 639 | LUSTRE_RW_ATTR(statahead_max); |
d7e09d03 | 640 | |
4081a320 OD |
641 | static ssize_t statahead_agl_show(struct kobject *kobj, |
642 | struct attribute *attr, | |
643 | char *buf) | |
d7e09d03 | 644 | { |
4081a320 OD |
645 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
646 | ll_kobj); | |
d7e09d03 | 647 | |
4081a320 | 648 | return sprintf(buf, "%u\n", sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0); |
d7e09d03 PT |
649 | } |
650 | ||
4081a320 OD |
651 | static ssize_t statahead_agl_store(struct kobject *kobj, |
652 | struct attribute *attr, | |
653 | const char *buffer, | |
654 | size_t count) | |
d7e09d03 | 655 | { |
4081a320 OD |
656 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
657 | ll_kobj); | |
658 | int rc; | |
659 | unsigned long val; | |
d7e09d03 | 660 | |
4081a320 | 661 | rc = kstrtoul(buffer, 10, &val); |
d7e09d03 PT |
662 | if (rc) |
663 | return rc; | |
664 | ||
665 | if (val) | |
666 | sbi->ll_flags |= LL_SBI_AGL_ENABLED; | |
667 | else | |
668 | sbi->ll_flags &= ~LL_SBI_AGL_ENABLED; | |
669 | ||
670 | return count; | |
671 | } | |
4081a320 | 672 | LUSTRE_RW_ATTR(statahead_agl); |
d7e09d03 | 673 | |
73bb1da6 | 674 | static int ll_statahead_stats_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 675 | { |
73bb1da6 | 676 | struct super_block *sb = m->private; |
d7e09d03 PT |
677 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
678 | ||
8faeebdf JP |
679 | seq_printf(m, |
680 | "statahead total: %u\n" | |
681 | "statahead wrong: %u\n" | |
682 | "agl total: %u\n", | |
683 | atomic_read(&sbi->ll_sa_total), | |
684 | atomic_read(&sbi->ll_sa_wrong), | |
685 | atomic_read(&sbi->ll_agl_total)); | |
686 | return 0; | |
d7e09d03 | 687 | } |
c9f6bb96 | 688 | |
73bb1da6 | 689 | LPROC_SEQ_FOPS_RO(ll_statahead_stats); |
d7e09d03 | 690 | |
c7fe64bd OD |
691 | static ssize_t lazystatfs_show(struct kobject *kobj, |
692 | struct attribute *attr, | |
693 | char *buf) | |
d7e09d03 | 694 | { |
c7fe64bd OD |
695 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
696 | ll_kobj); | |
d7e09d03 | 697 | |
c7fe64bd | 698 | return sprintf(buf, "%u\n", sbi->ll_flags & LL_SBI_LAZYSTATFS ? 1 : 0); |
d7e09d03 PT |
699 | } |
700 | ||
c7fe64bd OD |
701 | static ssize_t lazystatfs_store(struct kobject *kobj, |
702 | struct attribute *attr, | |
703 | const char *buffer, | |
704 | size_t count) | |
d7e09d03 | 705 | { |
c7fe64bd OD |
706 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
707 | ll_kobj); | |
708 | int rc; | |
709 | unsigned long val; | |
d7e09d03 | 710 | |
c7fe64bd | 711 | rc = kstrtoul(buffer, 10, &val); |
d7e09d03 PT |
712 | if (rc) |
713 | return rc; | |
714 | ||
715 | if (val) | |
716 | sbi->ll_flags |= LL_SBI_LAZYSTATFS; | |
717 | else | |
718 | sbi->ll_flags &= ~LL_SBI_LAZYSTATFS; | |
719 | ||
720 | return count; | |
721 | } | |
c7fe64bd | 722 | LUSTRE_RW_ATTR(lazystatfs); |
d7e09d03 | 723 | |
f5501d04 OD |
724 | static ssize_t max_easize_show(struct kobject *kobj, |
725 | struct attribute *attr, | |
726 | char *buf) | |
d7e09d03 | 727 | { |
f5501d04 OD |
728 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
729 | ll_kobj); | |
d7e09d03 PT |
730 | unsigned int ealen; |
731 | int rc; | |
732 | ||
733 | rc = ll_get_max_mdsize(sbi, &ealen); | |
734 | if (rc) | |
735 | return rc; | |
736 | ||
f5501d04 | 737 | return sprintf(buf, "%u\n", ealen); |
d7e09d03 | 738 | } |
f5501d04 | 739 | LUSTRE_RO_ATTR(max_easize); |
44779340 | 740 | |
f5501d04 OD |
741 | static ssize_t default_easize_show(struct kobject *kobj, |
742 | struct attribute *attr, | |
743 | char *buf) | |
44779340 | 744 | { |
f5501d04 OD |
745 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
746 | ll_kobj); | |
44779340 BB |
747 | unsigned int ealen; |
748 | int rc; | |
749 | ||
750 | rc = ll_get_default_mdsize(sbi, &ealen); | |
751 | if (rc) | |
752 | return rc; | |
753 | ||
f5501d04 | 754 | return sprintf(buf, "%u\n", ealen); |
44779340 | 755 | } |
f5501d04 | 756 | LUSTRE_RO_ATTR(default_easize); |
44779340 | 757 | |
73bb1da6 | 758 | static int ll_sbi_flags_seq_show(struct seq_file *m, void *v) |
d7e09d03 PT |
759 | { |
760 | const char *str[] = LL_SBI_FLAGS; | |
73bb1da6 | 761 | struct super_block *sb = m->private; |
d7e09d03 PT |
762 | int flags = ll_s2sbi(sb)->ll_flags; |
763 | int i = 0; | |
d7e09d03 PT |
764 | |
765 | while (flags != 0) { | |
766 | if (ARRAY_SIZE(str) <= i) { | |
2d00bd17 JP |
767 | CERROR("%s: Revise array LL_SBI_FLAGS to match sbi flags please.\n", |
768 | ll_get_fsname(sb, NULL, 0)); | |
d7e09d03 PT |
769 | return -EINVAL; |
770 | } | |
771 | ||
772 | if (flags & 0x1) | |
73bb1da6 | 773 | seq_printf(m, "%s ", str[i]); |
d7e09d03 PT |
774 | flags >>= 1; |
775 | ++i; | |
776 | } | |
73bb1da6 PT |
777 | seq_printf(m, "\b\n"); |
778 | return 0; | |
d7e09d03 | 779 | } |
c9f6bb96 | 780 | |
73bb1da6 | 781 | LPROC_SEQ_FOPS_RO(ll_sbi_flags); |
d7e09d03 | 782 | |
070c29ca OD |
783 | static ssize_t xattr_cache_show(struct kobject *kobj, |
784 | struct attribute *attr, | |
785 | char *buf) | |
7fc1f831 | 786 | { |
070c29ca OD |
787 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
788 | ll_kobj); | |
91b3a685 | 789 | |
070c29ca | 790 | return sprintf(buf, "%u\n", sbi->ll_xattr_cache_enabled); |
7fc1f831 AP |
791 | } |
792 | ||
070c29ca OD |
793 | static ssize_t xattr_cache_store(struct kobject *kobj, |
794 | struct attribute *attr, | |
795 | const char *buffer, | |
796 | size_t count) | |
7fc1f831 | 797 | { |
070c29ca OD |
798 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, |
799 | ll_kobj); | |
800 | int rc; | |
801 | unsigned long val; | |
7fc1f831 | 802 | |
070c29ca | 803 | rc = kstrtoul(buffer, 10, &val); |
7fc1f831 AP |
804 | if (rc) |
805 | return rc; | |
806 | ||
807 | if (val != 0 && val != 1) | |
808 | return -ERANGE; | |
809 | ||
810 | if (val == 1 && !(sbi->ll_flags & LL_SBI_XATTR_CACHE)) | |
811 | return -ENOTSUPP; | |
812 | ||
813 | sbi->ll_xattr_cache_enabled = val; | |
814 | ||
815 | return count; | |
816 | } | |
070c29ca | 817 | LUSTRE_RW_ATTR(xattr_cache); |
7fc1f831 | 818 | |
ac5b1481 PS |
819 | static ssize_t unstable_stats_show(struct kobject *kobj, |
820 | struct attribute *attr, | |
821 | char *buf) | |
822 | { | |
823 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, | |
824 | ll_kobj); | |
1b02bde3 | 825 | struct cl_client_cache *cache = sbi->ll_cache; |
ac5b1481 PS |
826 | int pages, mb; |
827 | ||
828 | pages = atomic_read(&cache->ccc_unstable_nr); | |
829 | mb = (pages * PAGE_SIZE) >> 20; | |
830 | ||
d806f30e JX |
831 | return sprintf(buf, "unstable_check: %8d\n" |
832 | "unstable_pages: %8d\n" | |
833 | "unstable_mb: %8d\n", | |
834 | cache->ccc_unstable_check, pages, mb); | |
ac5b1481 | 835 | } |
d806f30e JX |
836 | |
837 | static ssize_t unstable_stats_store(struct kobject *kobj, | |
838 | struct attribute *attr, | |
839 | const char *buffer, | |
840 | size_t count) | |
841 | { | |
842 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, | |
843 | ll_kobj); | |
844 | char kernbuf[128]; | |
845 | int val, rc; | |
846 | ||
847 | if (!count) | |
848 | return 0; | |
849 | if (count < 0 || count >= sizeof(kernbuf)) | |
850 | return -EINVAL; | |
851 | ||
852 | if (copy_from_user(kernbuf, buffer, count)) | |
853 | return -EFAULT; | |
854 | kernbuf[count] = 0; | |
855 | ||
856 | buffer += lprocfs_find_named_value(kernbuf, "unstable_check:", &count) - | |
857 | kernbuf; | |
858 | rc = lprocfs_write_helper(buffer, count, &val); | |
859 | if (rc < 0) | |
860 | return rc; | |
861 | ||
862 | /* borrow lru lock to set the value */ | |
863 | spin_lock(&sbi->ll_cache->ccc_lru_lock); | |
864 | sbi->ll_cache->ccc_unstable_check = !!val; | |
865 | spin_unlock(&sbi->ll_cache->ccc_lru_lock); | |
866 | ||
867 | return count; | |
868 | } | |
869 | LUSTRE_RW_ATTR(unstable_stats); | |
ac5b1481 | 870 | |
c948390f GP |
871 | static ssize_t root_squash_show(struct kobject *kobj, struct attribute *attr, |
872 | char *buf) | |
873 | { | |
874 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, | |
875 | ll_kobj); | |
876 | struct root_squash_info *squash = &sbi->ll_squash; | |
877 | ||
878 | return sprintf(buf, "%u:%u\n", squash->rsi_uid, squash->rsi_gid); | |
879 | } | |
880 | ||
881 | static ssize_t root_squash_store(struct kobject *kobj, struct attribute *attr, | |
882 | const char *buffer, size_t count) | |
883 | { | |
884 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, | |
885 | ll_kobj); | |
886 | struct root_squash_info *squash = &sbi->ll_squash; | |
887 | ||
888 | return lprocfs_wr_root_squash(buffer, count, squash, | |
889 | ll_get_fsname(sbi->ll_sb, NULL, 0)); | |
890 | } | |
891 | LUSTRE_RW_ATTR(root_squash); | |
892 | ||
893 | static int ll_nosquash_nids_seq_show(struct seq_file *m, void *v) | |
894 | { | |
895 | struct super_block *sb = m->private; | |
896 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
897 | struct root_squash_info *squash = &sbi->ll_squash; | |
898 | int len; | |
899 | ||
900 | down_read(&squash->rsi_sem); | |
901 | if (!list_empty(&squash->rsi_nosquash_nids)) { | |
902 | len = cfs_print_nidlist(m->buf + m->count, m->size - m->count, | |
903 | &squash->rsi_nosquash_nids); | |
904 | m->count += len; | |
905 | seq_puts(m, "\n"); | |
906 | } else { | |
907 | seq_puts(m, "NONE\n"); | |
908 | } | |
909 | up_read(&squash->rsi_sem); | |
910 | ||
911 | return 0; | |
912 | } | |
913 | ||
914 | static ssize_t ll_nosquash_nids_seq_write(struct file *file, | |
915 | const char __user *buffer, | |
916 | size_t count, loff_t *off) | |
917 | { | |
918 | struct seq_file *m = file->private_data; | |
919 | struct super_block *sb = m->private; | |
920 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
921 | struct root_squash_info *squash = &sbi->ll_squash; | |
922 | int rc; | |
923 | ||
924 | rc = lprocfs_wr_nosquash_nids(buffer, count, squash, | |
925 | ll_get_fsname(sb, NULL, 0)); | |
926 | if (rc < 0) | |
927 | return rc; | |
928 | ||
929 | ll_compute_rootsquash_state(sbi); | |
930 | ||
931 | return rc; | |
932 | } | |
933 | ||
934 | LPROC_SEQ_FOPS(ll_nosquash_nids); | |
935 | ||
d7e09d03 | 936 | static struct lprocfs_vars lprocfs_llite_obd_vars[] = { |
588bf52a | 937 | /* { "mntpt_path", ll_rd_path, 0, 0 }, */ |
95b86a76 | 938 | { "site", &ll_site_stats_fops, NULL, 0 }, |
588bf52a | 939 | /* { "filegroups", lprocfs_rd_filegroups, 0, 0 }, */ |
95b86a76 | 940 | { "max_cached_mb", &ll_max_cached_mb_fops, NULL }, |
95b86a76 | 941 | { "statahead_stats", &ll_statahead_stats_fops, NULL, 0 }, |
95b86a76 | 942 | { "sbi_flags", &ll_sbi_flags_fops, NULL, 0 }, |
c948390f GP |
943 | { .name = "nosquash_nids", |
944 | .fops = &ll_nosquash_nids_fops }, | |
ea7893bb | 945 | { NULL } |
d7e09d03 PT |
946 | }; |
947 | ||
948 | #define MAX_STRING_SIZE 128 | |
949 | ||
fd0d04ba | 950 | static struct attribute *llite_attrs[] = { |
364bcfc8 | 951 | &lustre_attr_blocksize.attr, |
5804b11e OD |
952 | &lustre_attr_kbytestotal.attr, |
953 | &lustre_attr_kbytesfree.attr, | |
954 | &lustre_attr_kbytesavail.attr, | |
7267ec0d OD |
955 | &lustre_attr_filestotal.attr, |
956 | &lustre_attr_filesfree.attr, | |
95e1b6b0 | 957 | &lustre_attr_client_type.attr, |
0cee6676 | 958 | &lustre_attr_fstype.attr, |
ec55a629 | 959 | &lustre_attr_uuid.attr, |
e1a1df5e | 960 | &lustre_attr_max_read_ahead_mb.attr, |
0e6c5a21 | 961 | &lustre_attr_max_read_ahead_per_file_mb.attr, |
ec469235 | 962 | &lustre_attr_max_read_ahead_whole_mb.attr, |
40cc864a | 963 | &lustre_attr_checksum_pages.attr, |
62cf4b13 OD |
964 | &lustre_attr_stats_track_pid.attr, |
965 | &lustre_attr_stats_track_ppid.attr, | |
966 | &lustre_attr_stats_track_gid.attr, | |
4081a320 OD |
967 | &lustre_attr_statahead_max.attr, |
968 | &lustre_attr_statahead_agl.attr, | |
c7fe64bd | 969 | &lustre_attr_lazystatfs.attr, |
f5501d04 OD |
970 | &lustre_attr_max_easize.attr, |
971 | &lustre_attr_default_easize.attr, | |
070c29ca | 972 | &lustre_attr_xattr_cache.attr, |
ac5b1481 | 973 | &lustre_attr_unstable_stats.attr, |
c948390f | 974 | &lustre_attr_root_squash.attr, |
fd0d04ba OD |
975 | NULL, |
976 | }; | |
977 | ||
978 | static void llite_sb_release(struct kobject *kobj) | |
979 | { | |
980 | struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, | |
981 | ll_kobj); | |
982 | complete(&sbi->ll_kobj_unregister); | |
983 | } | |
984 | ||
985 | static struct kobj_type llite_ktype = { | |
986 | .default_attrs = llite_attrs, | |
987 | .sysfs_ops = &lustre_sysfs_ops, | |
988 | .release = llite_sb_release, | |
989 | }; | |
990 | ||
2d95f10e | 991 | static const struct llite_file_opcode { |
d7e09d03 PT |
992 | __u32 opcode; |
993 | __u32 type; | |
994 | const char *opname; | |
995 | } llite_opcode_table[LPROC_LL_FILE_OPCODES] = { | |
996 | /* file operation */ | |
997 | { LPROC_LL_DIRTY_HITS, LPROCFS_TYPE_REGS, "dirty_pages_hits" }, | |
998 | { LPROC_LL_DIRTY_MISSES, LPROCFS_TYPE_REGS, "dirty_pages_misses" }, | |
cd94f231 | 999 | { LPROC_LL_READ_BYTES, LPROCFS_CNTR_AVGMINMAX | LPROCFS_TYPE_BYTES, |
d7e09d03 | 1000 | "read_bytes" }, |
cd94f231 | 1001 | { LPROC_LL_WRITE_BYTES, LPROCFS_CNTR_AVGMINMAX | LPROCFS_TYPE_BYTES, |
d7e09d03 | 1002 | "write_bytes" }, |
cd94f231 | 1003 | { LPROC_LL_BRW_READ, LPROCFS_CNTR_AVGMINMAX | LPROCFS_TYPE_PAGES, |
d7e09d03 | 1004 | "brw_read" }, |
cd94f231 | 1005 | { LPROC_LL_BRW_WRITE, LPROCFS_CNTR_AVGMINMAX | LPROCFS_TYPE_PAGES, |
d7e09d03 | 1006 | "brw_write" }, |
cd94f231 | 1007 | { LPROC_LL_OSC_READ, LPROCFS_CNTR_AVGMINMAX | LPROCFS_TYPE_BYTES, |
d7e09d03 | 1008 | "osc_read" }, |
cd94f231 | 1009 | { LPROC_LL_OSC_WRITE, LPROCFS_CNTR_AVGMINMAX | LPROCFS_TYPE_BYTES, |
d7e09d03 PT |
1010 | "osc_write" }, |
1011 | { LPROC_LL_IOCTL, LPROCFS_TYPE_REGS, "ioctl" }, | |
1012 | { LPROC_LL_OPEN, LPROCFS_TYPE_REGS, "open" }, | |
1013 | { LPROC_LL_RELEASE, LPROCFS_TYPE_REGS, "close" }, | |
1014 | { LPROC_LL_MAP, LPROCFS_TYPE_REGS, "mmap" }, | |
1015 | { LPROC_LL_LLSEEK, LPROCFS_TYPE_REGS, "seek" }, | |
1016 | { LPROC_LL_FSYNC, LPROCFS_TYPE_REGS, "fsync" }, | |
1017 | { LPROC_LL_READDIR, LPROCFS_TYPE_REGS, "readdir" }, | |
1018 | /* inode operation */ | |
1019 | { LPROC_LL_SETATTR, LPROCFS_TYPE_REGS, "setattr" }, | |
1020 | { LPROC_LL_TRUNC, LPROCFS_TYPE_REGS, "truncate" }, | |
1021 | { LPROC_LL_FLOCK, LPROCFS_TYPE_REGS, "flock" }, | |
1022 | { LPROC_LL_GETATTR, LPROCFS_TYPE_REGS, "getattr" }, | |
1023 | /* dir inode operation */ | |
1024 | { LPROC_LL_CREATE, LPROCFS_TYPE_REGS, "create" }, | |
1025 | { LPROC_LL_LINK, LPROCFS_TYPE_REGS, "link" }, | |
1026 | { LPROC_LL_UNLINK, LPROCFS_TYPE_REGS, "unlink" }, | |
1027 | { LPROC_LL_SYMLINK, LPROCFS_TYPE_REGS, "symlink" }, | |
1028 | { LPROC_LL_MKDIR, LPROCFS_TYPE_REGS, "mkdir" }, | |
1029 | { LPROC_LL_RMDIR, LPROCFS_TYPE_REGS, "rmdir" }, | |
1030 | { LPROC_LL_MKNOD, LPROCFS_TYPE_REGS, "mknod" }, | |
1031 | { LPROC_LL_RENAME, LPROCFS_TYPE_REGS, "rename" }, | |
1032 | /* special inode operation */ | |
1033 | { LPROC_LL_STAFS, LPROCFS_TYPE_REGS, "statfs" }, | |
1034 | { LPROC_LL_ALLOC_INODE, LPROCFS_TYPE_REGS, "alloc_inode" }, | |
1035 | { LPROC_LL_SETXATTR, LPROCFS_TYPE_REGS, "setxattr" }, | |
1036 | { LPROC_LL_GETXATTR, LPROCFS_TYPE_REGS, "getxattr" }, | |
7fc1f831 | 1037 | { LPROC_LL_GETXATTR_HITS, LPROCFS_TYPE_REGS, "getxattr_hits" }, |
d7e09d03 PT |
1038 | { LPROC_LL_LISTXATTR, LPROCFS_TYPE_REGS, "listxattr" }, |
1039 | { LPROC_LL_REMOVEXATTR, LPROCFS_TYPE_REGS, "removexattr" }, | |
1040 | { LPROC_LL_INODE_PERM, LPROCFS_TYPE_REGS, "inode_permission" }, | |
1041 | }; | |
1042 | ||
1043 | void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count) | |
1044 | { | |
1045 | if (!sbi->ll_stats) | |
1046 | return; | |
1047 | if (sbi->ll_stats_track_type == STATS_TRACK_ALL) | |
1048 | lprocfs_counter_add(sbi->ll_stats, op, count); | |
1049 | else if (sbi->ll_stats_track_type == STATS_TRACK_PID && | |
1050 | sbi->ll_stats_track_id == current->pid) | |
1051 | lprocfs_counter_add(sbi->ll_stats, op, count); | |
1052 | else if (sbi->ll_stats_track_type == STATS_TRACK_PPID && | |
b1beb91b | 1053 | sbi->ll_stats_track_id == current->real_parent->pid) |
d7e09d03 PT |
1054 | lprocfs_counter_add(sbi->ll_stats, op, count); |
1055 | else if (sbi->ll_stats_track_type == STATS_TRACK_GID && | |
4b1a25f0 PT |
1056 | sbi->ll_stats_track_id == |
1057 | from_kgid(&init_user_ns, current_gid())) | |
d7e09d03 PT |
1058 | lprocfs_counter_add(sbi->ll_stats, op, count); |
1059 | } | |
1060 | EXPORT_SYMBOL(ll_stats_ops_tally); | |
1061 | ||
1062 | static const char *ra_stat_string[] = { | |
1063 | [RA_STAT_HIT] = "hits", | |
1064 | [RA_STAT_MISS] = "misses", | |
1065 | [RA_STAT_DISTANT_READPAGE] = "readpage not consecutive", | |
1066 | [RA_STAT_MISS_IN_WINDOW] = "miss inside window", | |
1067 | [RA_STAT_FAILED_GRAB_PAGE] = "failed grab_cache_page", | |
1068 | [RA_STAT_FAILED_MATCH] = "failed lock match", | |
1069 | [RA_STAT_DISCARDED] = "read but discarded", | |
1070 | [RA_STAT_ZERO_LEN] = "zero length file", | |
1071 | [RA_STAT_ZERO_WINDOW] = "zero size window", | |
1072 | [RA_STAT_EOF] = "read-ahead to EOF", | |
1073 | [RA_STAT_MAX_IN_FLIGHT] = "hit max r-a issue", | |
1074 | [RA_STAT_WRONG_GRAB_PAGE] = "wrong page from grab_cache_page", | |
fd7444fe | 1075 | [RA_STAT_FAILED_REACH_END] = "failed to reach end" |
d7e09d03 PT |
1076 | }; |
1077 | ||
ae7c0f48 OD |
1078 | int ldebugfs_register_mountpoint(struct dentry *parent, |
1079 | struct super_block *sb, char *osc, char *mdc) | |
d7e09d03 | 1080 | { |
d7e09d03 PT |
1081 | struct lustre_sb_info *lsi = s2lsi(sb); |
1082 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1083 | struct obd_device *obd; | |
ae7c0f48 | 1084 | struct dentry *dir; |
d7e09d03 PT |
1085 | char name[MAX_STRING_SIZE + 1], *ptr; |
1086 | int err, id, len, rc; | |
d7e09d03 | 1087 | |
d7e09d03 | 1088 | name[MAX_STRING_SIZE] = '\0'; |
d7e09d03 | 1089 | |
6e16818b OD |
1090 | LASSERT(sbi); |
1091 | LASSERT(mdc); | |
1092 | LASSERT(osc); | |
d7e09d03 PT |
1093 | |
1094 | /* Get fsname */ | |
1095 | len = strlen(lsi->lsi_lmd->lmd_profile); | |
1096 | ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-'); | |
1097 | if (ptr && (strcmp(ptr, "-client") == 0)) | |
1098 | len -= 7; | |
1099 | ||
1100 | /* Mount info */ | |
1101 | snprintf(name, MAX_STRING_SIZE, "%.*s-%p", len, | |
1102 | lsi->lsi_lmd->lmd_profile, sb); | |
1103 | ||
ae7c0f48 OD |
1104 | dir = ldebugfs_register(name, parent, NULL, NULL); |
1105 | if (IS_ERR_OR_NULL(dir)) { | |
1106 | err = dir ? PTR_ERR(dir) : -ENOMEM; | |
1107 | sbi->ll_debugfs_entry = NULL; | |
0a3bdb00 | 1108 | return err; |
d7e09d03 | 1109 | } |
ae7c0f48 | 1110 | sbi->ll_debugfs_entry = dir; |
d7e09d03 | 1111 | |
ae7c0f48 OD |
1112 | rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "dump_page_cache", 0444, |
1113 | &vvp_dump_pgcache_file_ops, sbi); | |
d7e09d03 PT |
1114 | if (rc) |
1115 | CWARN("Error adding the dump_page_cache file\n"); | |
1116 | ||
ae7c0f48 OD |
1117 | rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "extents_stats", 0644, |
1118 | &ll_rw_extents_stats_fops, sbi); | |
d7e09d03 PT |
1119 | if (rc) |
1120 | CWARN("Error adding the extent_stats file\n"); | |
1121 | ||
ae7c0f48 | 1122 | rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, |
e15ba45d | 1123 | "extents_stats_per_process", |
ae7c0f48 | 1124 | 0644, &ll_rw_extents_stats_pp_fops, sbi); |
d7e09d03 PT |
1125 | if (rc) |
1126 | CWARN("Error adding the extents_stats_per_process file\n"); | |
1127 | ||
ae7c0f48 OD |
1128 | rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "offset_stats", 0644, |
1129 | &ll_rw_offset_stats_fops, sbi); | |
d7e09d03 PT |
1130 | if (rc) |
1131 | CWARN("Error adding the offset_stats file\n"); | |
1132 | ||
1133 | /* File operations stats */ | |
1134 | sbi->ll_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES, | |
1135 | LPROCFS_STATS_FLAG_NONE); | |
6e16818b | 1136 | if (!sbi->ll_stats) { |
34e1f2bb JL |
1137 | err = -ENOMEM; |
1138 | goto out; | |
1139 | } | |
d7e09d03 PT |
1140 | /* do counter init */ |
1141 | for (id = 0; id < LPROC_LL_FILE_OPCODES; id++) { | |
1142 | __u32 type = llite_opcode_table[id].type; | |
1143 | void *ptr = NULL; | |
50ffcb7e | 1144 | |
d7e09d03 PT |
1145 | if (type & LPROCFS_TYPE_REGS) |
1146 | ptr = "regs"; | |
1147 | else if (type & LPROCFS_TYPE_BYTES) | |
1148 | ptr = "bytes"; | |
1149 | else if (type & LPROCFS_TYPE_PAGES) | |
1150 | ptr = "pages"; | |
1151 | lprocfs_counter_init(sbi->ll_stats, | |
1152 | llite_opcode_table[id].opcode, | |
1153 | (type & LPROCFS_CNTR_AVGMINMAX), | |
1154 | llite_opcode_table[id].opname, ptr); | |
1155 | } | |
ae7c0f48 | 1156 | err = ldebugfs_register_stats(sbi->ll_debugfs_entry, "stats", |
e15ba45d | 1157 | sbi->ll_stats); |
d7e09d03 | 1158 | if (err) |
34e1f2bb | 1159 | goto out; |
d7e09d03 PT |
1160 | |
1161 | sbi->ll_ra_stats = lprocfs_alloc_stats(ARRAY_SIZE(ra_stat_string), | |
1162 | LPROCFS_STATS_FLAG_NONE); | |
6e16818b | 1163 | if (!sbi->ll_ra_stats) { |
34e1f2bb JL |
1164 | err = -ENOMEM; |
1165 | goto out; | |
1166 | } | |
d7e09d03 PT |
1167 | |
1168 | for (id = 0; id < ARRAY_SIZE(ra_stat_string); id++) | |
1169 | lprocfs_counter_init(sbi->ll_ra_stats, id, 0, | |
1170 | ra_stat_string[id], "pages"); | |
ae7c0f48 OD |
1171 | |
1172 | err = ldebugfs_register_stats(sbi->ll_debugfs_entry, "read_ahead_stats", | |
e15ba45d | 1173 | sbi->ll_ra_stats); |
d7e09d03 | 1174 | if (err) |
34e1f2bb | 1175 | goto out; |
d7e09d03 | 1176 | |
ae7c0f48 OD |
1177 | err = ldebugfs_add_vars(sbi->ll_debugfs_entry, |
1178 | lprocfs_llite_obd_vars, sb); | |
d7e09d03 | 1179 | if (err) |
34e1f2bb | 1180 | goto out; |
d7e09d03 | 1181 | |
fd0d04ba OD |
1182 | sbi->ll_kobj.kset = llite_kset; |
1183 | init_completion(&sbi->ll_kobj_unregister); | |
1184 | err = kobject_init_and_add(&sbi->ll_kobj, &llite_ktype, NULL, | |
1185 | "%s", name); | |
1186 | if (err) | |
1187 | goto out; | |
1188 | ||
d7e09d03 PT |
1189 | /* MDC info */ |
1190 | obd = class_name2obd(mdc); | |
1191 | ||
d8ede3f1 OD |
1192 | err = sysfs_create_link(&sbi->ll_kobj, &obd->obd_kobj, |
1193 | obd->obd_type->typ_name); | |
d7e09d03 | 1194 | if (err) |
34e1f2bb | 1195 | goto out; |
d7e09d03 PT |
1196 | |
1197 | /* OSC */ | |
1198 | obd = class_name2obd(osc); | |
1199 | ||
d8ede3f1 OD |
1200 | err = sysfs_create_link(&sbi->ll_kobj, &obd->obd_kobj, |
1201 | obd->obd_type->typ_name); | |
d7e09d03 PT |
1202 | out: |
1203 | if (err) { | |
ae7c0f48 | 1204 | ldebugfs_remove(&sbi->ll_debugfs_entry); |
d7e09d03 PT |
1205 | lprocfs_free_stats(&sbi->ll_ra_stats); |
1206 | lprocfs_free_stats(&sbi->ll_stats); | |
1207 | } | |
0a3bdb00 | 1208 | return err; |
d7e09d03 PT |
1209 | } |
1210 | ||
ae7c0f48 | 1211 | void ldebugfs_unregister_mountpoint(struct ll_sb_info *sbi) |
d7e09d03 | 1212 | { |
ae7c0f48 OD |
1213 | if (sbi->ll_debugfs_entry) { |
1214 | ldebugfs_remove(&sbi->ll_debugfs_entry); | |
fd0d04ba OD |
1215 | kobject_put(&sbi->ll_kobj); |
1216 | wait_for_completion(&sbi->ll_kobj_unregister); | |
d7e09d03 PT |
1217 | lprocfs_free_stats(&sbi->ll_ra_stats); |
1218 | lprocfs_free_stats(&sbi->ll_stats); | |
1219 | } | |
1220 | } | |
c9f6bb96 | 1221 | |
d7e09d03 PT |
1222 | #undef MAX_STRING_SIZE |
1223 | ||
1d8cb70c | 1224 | #define pct(a, b) (b ? a * 100 / b : 0) |
d7e09d03 PT |
1225 | |
1226 | static void ll_display_extents_info(struct ll_rw_extents_info *io_extents, | |
e15ba45d | 1227 | struct seq_file *seq, int which) |
d7e09d03 PT |
1228 | { |
1229 | unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum; | |
1230 | unsigned long start, end, r, w; | |
1231 | char *unitp = "KMGTPEZY"; | |
1232 | int i, units = 10; | |
1233 | struct per_process_info *pp_info = &io_extents->pp_extents[which]; | |
1234 | ||
1235 | read_cum = 0; | |
1236 | write_cum = 0; | |
1237 | start = 0; | |
1238 | ||
a58a38ac | 1239 | for (i = 0; i < LL_HIST_MAX; i++) { |
d7e09d03 PT |
1240 | read_tot += pp_info->pp_r_hist.oh_buckets[i]; |
1241 | write_tot += pp_info->pp_w_hist.oh_buckets[i]; | |
1242 | } | |
1243 | ||
a58a38ac | 1244 | for (i = 0; i < LL_HIST_MAX; i++) { |
d7e09d03 PT |
1245 | r = pp_info->pp_r_hist.oh_buckets[i]; |
1246 | w = pp_info->pp_w_hist.oh_buckets[i]; | |
1247 | read_cum += r; | |
1248 | write_cum += w; | |
1249 | end = 1 << (i + LL_HIST_START - units); | |
2d00bd17 JP |
1250 | seq_printf(seq, "%4lu%c - %4lu%c%c: %14lu %4lu %4lu | %14lu %4lu %4lu\n", |
1251 | start, *unitp, end, *unitp, | |
d7e09d03 PT |
1252 | (i == LL_HIST_MAX - 1) ? '+' : ' ', |
1253 | r, pct(r, read_tot), pct(read_cum, read_tot), | |
1254 | w, pct(w, write_tot), pct(write_cum, write_tot)); | |
1255 | start = end; | |
cd94f231 | 1256 | if (start == 1 << 10) { |
d7e09d03 PT |
1257 | start = 1; |
1258 | units += 10; | |
1259 | unitp++; | |
1260 | } | |
1261 | if (read_cum == read_tot && write_cum == write_tot) | |
1262 | break; | |
1263 | } | |
1264 | } | |
1265 | ||
1266 | static int ll_rw_extents_stats_pp_seq_show(struct seq_file *seq, void *v) | |
1267 | { | |
05406826 | 1268 | struct timespec64 now; |
d7e09d03 PT |
1269 | struct ll_sb_info *sbi = seq->private; |
1270 | struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; | |
1271 | int k; | |
1272 | ||
05406826 | 1273 | ktime_get_real_ts64(&now); |
d7e09d03 PT |
1274 | |
1275 | if (!sbi->ll_rw_stats_on) { | |
1276 | seq_printf(seq, "disabled\n" | |
2d00bd17 | 1277 | "write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n"); |
d7e09d03 PT |
1278 | return 0; |
1279 | } | |
05406826 AB |
1280 | seq_printf(seq, "snapshot_time: %llu.%09lu (secs.usecs)\n", |
1281 | (s64)now.tv_sec, (unsigned long)now.tv_nsec); | |
d7e09d03 PT |
1282 | seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write"); |
1283 | seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n", | |
1284 | "extents", "calls", "%", "cum%", | |
1285 | "calls", "%", "cum%"); | |
1286 | spin_lock(&sbi->ll_pp_extent_lock); | |
1287 | for (k = 0; k < LL_PROCESS_HIST_MAX; k++) { | |
1288 | if (io_extents->pp_extents[k].pid != 0) { | |
1289 | seq_printf(seq, "\nPID: %d\n", | |
1290 | io_extents->pp_extents[k].pid); | |
1291 | ll_display_extents_info(io_extents, seq, k); | |
1292 | } | |
1293 | } | |
1294 | spin_unlock(&sbi->ll_pp_extent_lock); | |
1295 | return 0; | |
1296 | } | |
1297 | ||
1298 | static ssize_t ll_rw_extents_stats_pp_seq_write(struct file *file, | |
a1e7e2d4 OD |
1299 | const char __user *buf, |
1300 | size_t len, | |
d7e09d03 PT |
1301 | loff_t *off) |
1302 | { | |
1303 | struct seq_file *seq = file->private_data; | |
1304 | struct ll_sb_info *sbi = seq->private; | |
1305 | struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; | |
1306 | int i; | |
1307 | int value = 1, rc = 0; | |
1308 | ||
a1e7e2d4 OD |
1309 | if (len == 0) |
1310 | return -EINVAL; | |
1311 | ||
d7e09d03 | 1312 | rc = lprocfs_write_helper(buf, len, &value); |
a1e7e2d4 OD |
1313 | if (rc < 0 && len < 16) { |
1314 | char kernbuf[16]; | |
1315 | ||
1316 | if (copy_from_user(kernbuf, buf, len)) | |
1317 | return -EFAULT; | |
1318 | kernbuf[len] = 0; | |
1319 | ||
1320 | if (kernbuf[len - 1] == '\n') | |
1321 | kernbuf[len - 1] = 0; | |
1322 | ||
1323 | if (strcmp(kernbuf, "disabled") == 0 || | |
1324 | strcmp(kernbuf, "Disabled") == 0) | |
1325 | value = 0; | |
1326 | } | |
d7e09d03 PT |
1327 | |
1328 | if (value == 0) | |
1329 | sbi->ll_rw_stats_on = 0; | |
1330 | else | |
1331 | sbi->ll_rw_stats_on = 1; | |
1332 | ||
1333 | spin_lock(&sbi->ll_pp_extent_lock); | |
1334 | for (i = 0; i < LL_PROCESS_HIST_MAX; i++) { | |
1335 | io_extents->pp_extents[i].pid = 0; | |
1336 | lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist); | |
1337 | lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist); | |
1338 | } | |
1339 | spin_unlock(&sbi->ll_pp_extent_lock); | |
1340 | return len; | |
1341 | } | |
1342 | ||
1343 | LPROC_SEQ_FOPS(ll_rw_extents_stats_pp); | |
1344 | ||
1345 | static int ll_rw_extents_stats_seq_show(struct seq_file *seq, void *v) | |
1346 | { | |
05406826 | 1347 | struct timespec64 now; |
d7e09d03 PT |
1348 | struct ll_sb_info *sbi = seq->private; |
1349 | struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; | |
1350 | ||
05406826 | 1351 | ktime_get_real_ts64(&now); |
d7e09d03 PT |
1352 | |
1353 | if (!sbi->ll_rw_stats_on) { | |
1354 | seq_printf(seq, "disabled\n" | |
2d00bd17 | 1355 | "write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n"); |
d7e09d03 PT |
1356 | return 0; |
1357 | } | |
05406826 AB |
1358 | seq_printf(seq, "snapshot_time: %llu.%09lu (secs.usecs)\n", |
1359 | (u64)now.tv_sec, (unsigned long)now.tv_nsec); | |
d7e09d03 PT |
1360 | |
1361 | seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write"); | |
1362 | seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n", | |
1363 | "extents", "calls", "%", "cum%", | |
1364 | "calls", "%", "cum%"); | |
1365 | spin_lock(&sbi->ll_lock); | |
1366 | ll_display_extents_info(io_extents, seq, LL_PROCESS_HIST_MAX); | |
1367 | spin_unlock(&sbi->ll_lock); | |
1368 | ||
1369 | return 0; | |
1370 | } | |
1371 | ||
a1e7e2d4 OD |
1372 | static ssize_t ll_rw_extents_stats_seq_write(struct file *file, |
1373 | const char __user *buf, | |
1374 | size_t len, loff_t *off) | |
d7e09d03 PT |
1375 | { |
1376 | struct seq_file *seq = file->private_data; | |
1377 | struct ll_sb_info *sbi = seq->private; | |
1378 | struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; | |
1379 | int i; | |
1380 | int value = 1, rc = 0; | |
1381 | ||
a1e7e2d4 OD |
1382 | if (len == 0) |
1383 | return -EINVAL; | |
1384 | ||
d7e09d03 | 1385 | rc = lprocfs_write_helper(buf, len, &value); |
a1e7e2d4 OD |
1386 | if (rc < 0 && len < 16) { |
1387 | char kernbuf[16]; | |
1388 | ||
1389 | if (copy_from_user(kernbuf, buf, len)) | |
1390 | return -EFAULT; | |
1391 | kernbuf[len] = 0; | |
1392 | ||
1393 | if (kernbuf[len - 1] == '\n') | |
1394 | kernbuf[len - 1] = 0; | |
1395 | ||
1396 | if (strcmp(kernbuf, "disabled") == 0 || | |
1397 | strcmp(kernbuf, "Disabled") == 0) | |
1398 | value = 0; | |
1399 | } | |
d7e09d03 PT |
1400 | |
1401 | if (value == 0) | |
1402 | sbi->ll_rw_stats_on = 0; | |
1403 | else | |
1404 | sbi->ll_rw_stats_on = 1; | |
a1e7e2d4 | 1405 | |
d7e09d03 PT |
1406 | spin_lock(&sbi->ll_pp_extent_lock); |
1407 | for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) { | |
1408 | io_extents->pp_extents[i].pid = 0; | |
1409 | lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist); | |
1410 | lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist); | |
1411 | } | |
1412 | spin_unlock(&sbi->ll_pp_extent_lock); | |
1413 | ||
1414 | return len; | |
1415 | } | |
c9f6bb96 | 1416 | |
d7e09d03 PT |
1417 | LPROC_SEQ_FOPS(ll_rw_extents_stats); |
1418 | ||
1419 | void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid, | |
1420 | struct ll_file_data *file, loff_t pos, | |
1421 | size_t count, int rw) | |
1422 | { | |
1423 | int i, cur = -1; | |
1424 | struct ll_rw_process_info *process; | |
1425 | struct ll_rw_process_info *offset; | |
1426 | int *off_count = &sbi->ll_rw_offset_entry_count; | |
1427 | int *process_count = &sbi->ll_offset_process_count; | |
1428 | struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; | |
1429 | ||
a58a38ac | 1430 | if (!sbi->ll_rw_stats_on) |
d7e09d03 PT |
1431 | return; |
1432 | process = sbi->ll_rw_process_info; | |
1433 | offset = sbi->ll_rw_offset_info; | |
1434 | ||
1435 | spin_lock(&sbi->ll_pp_extent_lock); | |
1436 | /* Extent statistics */ | |
a58a38ac GD |
1437 | for (i = 0; i < LL_PROCESS_HIST_MAX; i++) { |
1438 | if (io_extents->pp_extents[i].pid == pid) { | |
d7e09d03 PT |
1439 | cur = i; |
1440 | break; | |
1441 | } | |
1442 | } | |
1443 | ||
1444 | if (cur == -1) { | |
1445 | /* new process */ | |
1446 | sbi->ll_extent_process_count = | |
1447 | (sbi->ll_extent_process_count + 1) % LL_PROCESS_HIST_MAX; | |
1448 | cur = sbi->ll_extent_process_count; | |
1449 | io_extents->pp_extents[cur].pid = pid; | |
1450 | lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_r_hist); | |
1451 | lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_w_hist); | |
1452 | } | |
1453 | ||
b2952d62 | 1454 | for (i = 0; (count >= (1 << LL_HIST_START << i)) && |
910b551c MR |
1455 | (i < (LL_HIST_MAX - 1)); i++) |
1456 | ; | |
d7e09d03 PT |
1457 | if (rw == 0) { |
1458 | io_extents->pp_extents[cur].pp_r_hist.oh_buckets[i]++; | |
1459 | io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_r_hist.oh_buckets[i]++; | |
1460 | } else { | |
1461 | io_extents->pp_extents[cur].pp_w_hist.oh_buckets[i]++; | |
1462 | io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_w_hist.oh_buckets[i]++; | |
1463 | } | |
1464 | spin_unlock(&sbi->ll_pp_extent_lock); | |
1465 | ||
1466 | spin_lock(&sbi->ll_process_lock); | |
1467 | /* Offset statistics */ | |
1468 | for (i = 0; i < LL_PROCESS_HIST_MAX; i++) { | |
1469 | if (process[i].rw_pid == pid) { | |
1470 | if (process[i].rw_last_file != file) { | |
1471 | process[i].rw_range_start = pos; | |
1472 | process[i].rw_last_file_pos = pos + count; | |
1473 | process[i].rw_smallest_extent = count; | |
1474 | process[i].rw_largest_extent = count; | |
1475 | process[i].rw_offset = 0; | |
1476 | process[i].rw_last_file = file; | |
1477 | spin_unlock(&sbi->ll_process_lock); | |
1478 | return; | |
1479 | } | |
1480 | if (process[i].rw_last_file_pos != pos) { | |
1481 | *off_count = | |
1482 | (*off_count + 1) % LL_OFFSET_HIST_MAX; | |
1483 | offset[*off_count].rw_op = process[i].rw_op; | |
1484 | offset[*off_count].rw_pid = pid; | |
1485 | offset[*off_count].rw_range_start = | |
1486 | process[i].rw_range_start; | |
1487 | offset[*off_count].rw_range_end = | |
1488 | process[i].rw_last_file_pos; | |
1489 | offset[*off_count].rw_smallest_extent = | |
1490 | process[i].rw_smallest_extent; | |
1491 | offset[*off_count].rw_largest_extent = | |
1492 | process[i].rw_largest_extent; | |
1493 | offset[*off_count].rw_offset = | |
1494 | process[i].rw_offset; | |
1495 | process[i].rw_op = rw; | |
1496 | process[i].rw_range_start = pos; | |
1497 | process[i].rw_smallest_extent = count; | |
1498 | process[i].rw_largest_extent = count; | |
1499 | process[i].rw_offset = pos - | |
1500 | process[i].rw_last_file_pos; | |
1501 | } | |
a58a38ac | 1502 | if (process[i].rw_smallest_extent > count) |
d7e09d03 | 1503 | process[i].rw_smallest_extent = count; |
a58a38ac | 1504 | if (process[i].rw_largest_extent < count) |
d7e09d03 PT |
1505 | process[i].rw_largest_extent = count; |
1506 | process[i].rw_last_file_pos = pos + count; | |
1507 | spin_unlock(&sbi->ll_process_lock); | |
1508 | return; | |
1509 | } | |
1510 | } | |
1511 | *process_count = (*process_count + 1) % LL_PROCESS_HIST_MAX; | |
1512 | process[*process_count].rw_pid = pid; | |
1513 | process[*process_count].rw_op = rw; | |
1514 | process[*process_count].rw_range_start = pos; | |
1515 | process[*process_count].rw_last_file_pos = pos + count; | |
1516 | process[*process_count].rw_smallest_extent = count; | |
1517 | process[*process_count].rw_largest_extent = count; | |
1518 | process[*process_count].rw_offset = 0; | |
1519 | process[*process_count].rw_last_file = file; | |
1520 | spin_unlock(&sbi->ll_process_lock); | |
1521 | } | |
1522 | ||
1523 | static int ll_rw_offset_stats_seq_show(struct seq_file *seq, void *v) | |
1524 | { | |
05406826 | 1525 | struct timespec64 now; |
d7e09d03 PT |
1526 | struct ll_sb_info *sbi = seq->private; |
1527 | struct ll_rw_process_info *offset = sbi->ll_rw_offset_info; | |
1528 | struct ll_rw_process_info *process = sbi->ll_rw_process_info; | |
1529 | int i; | |
1530 | ||
05406826 | 1531 | ktime_get_real_ts64(&now); |
d7e09d03 PT |
1532 | |
1533 | if (!sbi->ll_rw_stats_on) { | |
1534 | seq_printf(seq, "disabled\n" | |
2d00bd17 | 1535 | "write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n"); |
d7e09d03 PT |
1536 | return 0; |
1537 | } | |
1538 | spin_lock(&sbi->ll_process_lock); | |
1539 | ||
05406826 AB |
1540 | seq_printf(seq, "snapshot_time: %llu.%09lu (secs.usecs)\n", |
1541 | (s64)now.tv_sec, (unsigned long)now.tv_nsec); | |
d7e09d03 PT |
1542 | seq_printf(seq, "%3s %10s %14s %14s %17s %17s %14s\n", |
1543 | "R/W", "PID", "RANGE START", "RANGE END", | |
1544 | "SMALLEST EXTENT", "LARGEST EXTENT", "OFFSET"); | |
1545 | /* We stored the discontiguous offsets here; print them first */ | |
a58a38ac | 1546 | for (i = 0; i < LL_OFFSET_HIST_MAX; i++) { |
d7e09d03 | 1547 | if (offset[i].rw_pid != 0) |
4f37bc04 JH |
1548 | seq_printf(seq, |
1549 | "%3c %10d %14Lu %14Lu %17lu %17lu %14Lu", | |
1550 | offset[i].rw_op == READ ? 'R' : 'W', | |
d7e09d03 PT |
1551 | offset[i].rw_pid, |
1552 | offset[i].rw_range_start, | |
1553 | offset[i].rw_range_end, | |
1554 | (unsigned long)offset[i].rw_smallest_extent, | |
1555 | (unsigned long)offset[i].rw_largest_extent, | |
1556 | offset[i].rw_offset); | |
1557 | } | |
1558 | /* Then print the current offsets for each process */ | |
a58a38ac | 1559 | for (i = 0; i < LL_PROCESS_HIST_MAX; i++) { |
d7e09d03 | 1560 | if (process[i].rw_pid != 0) |
4f37bc04 JH |
1561 | seq_printf(seq, |
1562 | "%3c %10d %14Lu %14Lu %17lu %17lu %14Lu", | |
1563 | process[i].rw_op == READ ? 'R' : 'W', | |
d7e09d03 PT |
1564 | process[i].rw_pid, |
1565 | process[i].rw_range_start, | |
1566 | process[i].rw_last_file_pos, | |
1567 | (unsigned long)process[i].rw_smallest_extent, | |
1568 | (unsigned long)process[i].rw_largest_extent, | |
1569 | process[i].rw_offset); | |
1570 | } | |
1571 | spin_unlock(&sbi->ll_process_lock); | |
1572 | ||
1573 | return 0; | |
1574 | } | |
1575 | ||
a1e7e2d4 OD |
1576 | static ssize_t ll_rw_offset_stats_seq_write(struct file *file, |
1577 | const char __user *buf, | |
1578 | size_t len, loff_t *off) | |
d7e09d03 PT |
1579 | { |
1580 | struct seq_file *seq = file->private_data; | |
1581 | struct ll_sb_info *sbi = seq->private; | |
1582 | struct ll_rw_process_info *process_info = sbi->ll_rw_process_info; | |
1583 | struct ll_rw_process_info *offset_info = sbi->ll_rw_offset_info; | |
1584 | int value = 1, rc = 0; | |
1585 | ||
a1e7e2d4 OD |
1586 | if (len == 0) |
1587 | return -EINVAL; | |
1588 | ||
d7e09d03 PT |
1589 | rc = lprocfs_write_helper(buf, len, &value); |
1590 | ||
a1e7e2d4 OD |
1591 | if (rc < 0 && len < 16) { |
1592 | char kernbuf[16]; | |
1593 | ||
1594 | if (copy_from_user(kernbuf, buf, len)) | |
1595 | return -EFAULT; | |
1596 | kernbuf[len] = 0; | |
1597 | ||
1598 | if (kernbuf[len - 1] == '\n') | |
1599 | kernbuf[len - 1] = 0; | |
1600 | ||
1601 | if (strcmp(kernbuf, "disabled") == 0 || | |
1602 | strcmp(kernbuf, "Disabled") == 0) | |
1603 | value = 0; | |
1604 | } | |
d7e09d03 PT |
1605 | |
1606 | if (value == 0) | |
1607 | sbi->ll_rw_stats_on = 0; | |
1608 | else | |
1609 | sbi->ll_rw_stats_on = 1; | |
1610 | ||
1611 | spin_lock(&sbi->ll_process_lock); | |
1612 | sbi->ll_offset_process_count = 0; | |
1613 | sbi->ll_rw_offset_entry_count = 0; | |
1614 | memset(process_info, 0, sizeof(struct ll_rw_process_info) * | |
1615 | LL_PROCESS_HIST_MAX); | |
1616 | memset(offset_info, 0, sizeof(struct ll_rw_process_info) * | |
1617 | LL_OFFSET_HIST_MAX); | |
1618 | spin_unlock(&sbi->ll_process_lock); | |
1619 | ||
1620 | return len; | |
1621 | } | |
1622 | ||
1623 | LPROC_SEQ_FOPS(ll_rw_offset_stats); | |
1624 | ||
1625 | void lprocfs_llite_init_vars(struct lprocfs_static_vars *lvars) | |
1626 | { | |
22ea97f0 | 1627 | lvars->obd_vars = lprocfs_llite_obd_vars; |
d7e09d03 | 1628 | } |