Commit | Line | Data |
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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 | |
18 | * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf | |
19 | * | |
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 | |
22 | * have any questions. | |
23 | * | |
24 | * GPL HEADER END | |
25 | */ | |
26 | /* | |
27 | * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. | |
28 | * Use is subject to license terms. | |
29 | * | |
30 | * Copyright (c) 2011, 2012, Intel Corporation. | |
31 | */ | |
32 | /* | |
33 | * This file is part of Lustre, http://www.lustre.org/ | |
34 | * Lustre is a trademark of Sun Microsystems, Inc. | |
35 | */ | |
36 | #define DEBUG_SUBSYSTEM S_LLITE | |
37 | ||
67a235f5 GKH |
38 | #include "../include/lustre_lite.h" |
39 | #include "../include/lprocfs_status.h" | |
d7e09d03 | 40 | #include <linux/seq_file.h> |
67a235f5 | 41 | #include "../include/obd_support.h" |
d7e09d03 PT |
42 | |
43 | #include "llite_internal.h" | |
2d95f10e | 44 | #include "vvp_internal.h" |
d7e09d03 | 45 | |
d7e09d03 | 46 | /* /proc/lustre/llite mount point registration */ |
b9c98cfa FF |
47 | static struct file_operations ll_rw_extents_stats_fops; |
48 | static struct file_operations ll_rw_extents_stats_pp_fops; | |
49 | static struct file_operations ll_rw_offset_stats_fops; | |
d7e09d03 | 50 | |
73bb1da6 | 51 | static int ll_blksize_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 52 | { |
73bb1da6 | 53 | struct super_block *sb = (struct super_block *)m->private; |
d7e09d03 PT |
54 | struct obd_statfs osfs; |
55 | int rc; | |
56 | ||
57 | LASSERT(sb != NULL); | |
58 | rc = ll_statfs_internal(sb, &osfs, | |
59 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
60 | OBD_STATFS_NODELAY); | |
73bb1da6 PT |
61 | if (!rc) |
62 | rc = seq_printf(m, "%u\n", osfs.os_bsize); | |
d7e09d03 PT |
63 | |
64 | return rc; | |
65 | } | |
73bb1da6 | 66 | LPROC_SEQ_FOPS_RO(ll_blksize); |
d7e09d03 | 67 | |
73bb1da6 | 68 | static int ll_kbytestotal_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 69 | { |
73bb1da6 | 70 | struct super_block *sb = (struct super_block *)m->private; |
d7e09d03 PT |
71 | struct obd_statfs osfs; |
72 | int rc; | |
73 | ||
74 | LASSERT(sb != NULL); | |
75 | rc = ll_statfs_internal(sb, &osfs, | |
76 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
77 | OBD_STATFS_NODELAY); | |
78 | if (!rc) { | |
79 | __u32 blk_size = osfs.os_bsize >> 10; | |
80 | __u64 result = osfs.os_blocks; | |
81 | ||
82 | while (blk_size >>= 1) | |
83 | result <<= 1; | |
84 | ||
b0f5aad5 | 85 | rc = seq_printf(m, "%llu\n", result); |
d7e09d03 PT |
86 | } |
87 | return rc; | |
d7e09d03 | 88 | } |
73bb1da6 | 89 | LPROC_SEQ_FOPS_RO(ll_kbytestotal); |
d7e09d03 | 90 | |
73bb1da6 | 91 | static int ll_kbytesfree_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 92 | { |
73bb1da6 | 93 | struct super_block *sb = (struct super_block *)m->private; |
d7e09d03 PT |
94 | struct obd_statfs osfs; |
95 | int rc; | |
96 | ||
97 | LASSERT(sb != NULL); | |
98 | rc = ll_statfs_internal(sb, &osfs, | |
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 | ||
b0f5aad5 | 108 | rc = seq_printf(m, "%llu\n", result); |
d7e09d03 PT |
109 | } |
110 | return rc; | |
111 | } | |
73bb1da6 | 112 | LPROC_SEQ_FOPS_RO(ll_kbytesfree); |
d7e09d03 | 113 | |
73bb1da6 | 114 | static int ll_kbytesavail_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 115 | { |
73bb1da6 | 116 | struct super_block *sb = (struct super_block *)m->private; |
d7e09d03 PT |
117 | struct obd_statfs osfs; |
118 | int rc; | |
119 | ||
120 | LASSERT(sb != NULL); | |
121 | rc = ll_statfs_internal(sb, &osfs, | |
122 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
123 | OBD_STATFS_NODELAY); | |
124 | if (!rc) { | |
125 | __u32 blk_size = osfs.os_bsize >> 10; | |
126 | __u64 result = osfs.os_bavail; | |
127 | ||
128 | while (blk_size >>= 1) | |
129 | result <<= 1; | |
130 | ||
b0f5aad5 | 131 | rc = seq_printf(m, "%llu\n", result); |
d7e09d03 PT |
132 | } |
133 | return rc; | |
134 | } | |
73bb1da6 | 135 | LPROC_SEQ_FOPS_RO(ll_kbytesavail); |
d7e09d03 | 136 | |
73bb1da6 | 137 | static int ll_filestotal_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 138 | { |
73bb1da6 | 139 | struct super_block *sb = (struct super_block *)m->private; |
d7e09d03 PT |
140 | struct obd_statfs osfs; |
141 | int rc; | |
142 | ||
143 | LASSERT(sb != NULL); | |
144 | rc = ll_statfs_internal(sb, &osfs, | |
145 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
146 | OBD_STATFS_NODELAY); | |
73bb1da6 | 147 | if (!rc) |
b0f5aad5 | 148 | rc = seq_printf(m, "%llu\n", osfs.os_files); |
d7e09d03 PT |
149 | return rc; |
150 | } | |
73bb1da6 | 151 | LPROC_SEQ_FOPS_RO(ll_filestotal); |
d7e09d03 | 152 | |
73bb1da6 | 153 | static int ll_filesfree_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 154 | { |
73bb1da6 | 155 | struct super_block *sb = (struct super_block *)m->private; |
d7e09d03 PT |
156 | struct obd_statfs osfs; |
157 | int rc; | |
158 | ||
159 | LASSERT(sb != NULL); | |
160 | rc = ll_statfs_internal(sb, &osfs, | |
161 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
162 | OBD_STATFS_NODELAY); | |
73bb1da6 | 163 | if (!rc) |
b0f5aad5 | 164 | rc = seq_printf(m, "%llu\n", osfs.os_ffree); |
d7e09d03 | 165 | return rc; |
d7e09d03 | 166 | } |
73bb1da6 | 167 | LPROC_SEQ_FOPS_RO(ll_filesfree); |
d7e09d03 | 168 | |
73bb1da6 | 169 | static int ll_client_type_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 170 | { |
73bb1da6 | 171 | struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private); |
d7e09d03 PT |
172 | int rc; |
173 | ||
174 | LASSERT(sbi != NULL); | |
175 | ||
d7e09d03 | 176 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) |
73bb1da6 | 177 | rc = seq_printf(m, "remote client\n"); |
d7e09d03 | 178 | else |
73bb1da6 | 179 | rc = seq_printf(m, "local client\n"); |
d7e09d03 PT |
180 | |
181 | return rc; | |
182 | } | |
73bb1da6 | 183 | LPROC_SEQ_FOPS_RO(ll_client_type); |
d7e09d03 | 184 | |
73bb1da6 | 185 | static int ll_fstype_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 186 | { |
73bb1da6 | 187 | struct super_block *sb = (struct super_block *)m->private; |
d7e09d03 PT |
188 | |
189 | LASSERT(sb != NULL); | |
73bb1da6 | 190 | return seq_printf(m, "%s\n", sb->s_type->name); |
d7e09d03 | 191 | } |
73bb1da6 | 192 | LPROC_SEQ_FOPS_RO(ll_fstype); |
d7e09d03 | 193 | |
73bb1da6 | 194 | static int ll_sb_uuid_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 195 | { |
73bb1da6 | 196 | struct super_block *sb = (struct super_block *)m->private; |
d7e09d03 PT |
197 | |
198 | LASSERT(sb != NULL); | |
73bb1da6 | 199 | return seq_printf(m, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid); |
d7e09d03 | 200 | } |
73bb1da6 | 201 | LPROC_SEQ_FOPS_RO(ll_sb_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 | } |
73bb1da6 | 213 | LPROC_SEQ_FOPS_RO(ll_site_stats); |
d7e09d03 | 214 | |
73bb1da6 | 215 | static int ll_max_readahead_mb_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 216 | { |
73bb1da6 | 217 | struct super_block *sb = m->private; |
d7e09d03 PT |
218 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
219 | long pages_number; | |
220 | int mult; | |
221 | ||
222 | spin_lock(&sbi->ll_lock); | |
223 | pages_number = sbi->ll_ra_info.ra_max_pages; | |
224 | spin_unlock(&sbi->ll_lock); | |
225 | ||
226 | mult = 1 << (20 - PAGE_CACHE_SHIFT); | |
73bb1da6 | 227 | return lprocfs_seq_read_frac_helper(m, pages_number, mult); |
d7e09d03 PT |
228 | } |
229 | ||
5a13503e AL |
230 | static ssize_t ll_max_readahead_mb_seq_write(struct file *file, |
231 | const char __user *buffer, | |
232 | size_t count, loff_t *off) | |
d7e09d03 | 233 | { |
73bb1da6 | 234 | struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
d7e09d03 PT |
235 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
236 | int mult, rc, pages_number; | |
237 | ||
238 | mult = 1 << (20 - PAGE_CACHE_SHIFT); | |
239 | rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); | |
240 | if (rc) | |
241 | return rc; | |
242 | ||
4f6cc9ab | 243 | if (pages_number < 0 || pages_number > totalram_pages / 2) { |
d7e09d03 | 244 | CERROR("can't set file readahead more than %lu MB\n", |
4f6cc9ab | 245 | totalram_pages >> (20 - PAGE_CACHE_SHIFT + 1)); /*1/2 of RAM*/ |
d7e09d03 PT |
246 | return -ERANGE; |
247 | } | |
248 | ||
249 | spin_lock(&sbi->ll_lock); | |
250 | sbi->ll_ra_info.ra_max_pages = pages_number; | |
251 | spin_unlock(&sbi->ll_lock); | |
252 | ||
253 | return count; | |
254 | } | |
73bb1da6 | 255 | LPROC_SEQ_FOPS(ll_max_readahead_mb); |
d7e09d03 | 256 | |
73bb1da6 | 257 | static int ll_max_readahead_per_file_mb_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 258 | { |
73bb1da6 | 259 | struct super_block *sb = m->private; |
d7e09d03 PT |
260 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
261 | long pages_number; | |
262 | int mult; | |
263 | ||
264 | spin_lock(&sbi->ll_lock); | |
265 | pages_number = sbi->ll_ra_info.ra_max_pages_per_file; | |
266 | spin_unlock(&sbi->ll_lock); | |
267 | ||
268 | mult = 1 << (20 - PAGE_CACHE_SHIFT); | |
73bb1da6 | 269 | return lprocfs_seq_read_frac_helper(m, pages_number, mult); |
d7e09d03 PT |
270 | } |
271 | ||
73bb1da6 | 272 | static ssize_t ll_max_readahead_per_file_mb_seq_write(struct file *file, |
5a13503e | 273 | const char __user *buffer, |
73bb1da6 | 274 | size_t count, loff_t *off) |
d7e09d03 | 275 | { |
73bb1da6 | 276 | struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
d7e09d03 PT |
277 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
278 | int mult, rc, pages_number; | |
279 | ||
280 | mult = 1 << (20 - PAGE_CACHE_SHIFT); | |
281 | rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); | |
282 | if (rc) | |
283 | return rc; | |
284 | ||
285 | if (pages_number < 0 || | |
286 | pages_number > sbi->ll_ra_info.ra_max_pages) { | |
2d00bd17 | 287 | CERROR("can't set file readahead more than max_read_ahead_mb %lu MB\n", |
d7e09d03 PT |
288 | sbi->ll_ra_info.ra_max_pages); |
289 | return -ERANGE; | |
290 | } | |
291 | ||
292 | spin_lock(&sbi->ll_lock); | |
293 | sbi->ll_ra_info.ra_max_pages_per_file = pages_number; | |
294 | spin_unlock(&sbi->ll_lock); | |
295 | ||
296 | return count; | |
297 | } | |
73bb1da6 | 298 | LPROC_SEQ_FOPS(ll_max_readahead_per_file_mb); |
d7e09d03 | 299 | |
73bb1da6 | 300 | static int ll_max_read_ahead_whole_mb_seq_show(struct seq_file *m, void *unused) |
d7e09d03 | 301 | { |
73bb1da6 | 302 | struct super_block *sb = m->private; |
d7e09d03 PT |
303 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
304 | long pages_number; | |
305 | int mult; | |
306 | ||
307 | spin_lock(&sbi->ll_lock); | |
308 | pages_number = sbi->ll_ra_info.ra_max_read_ahead_whole_pages; | |
309 | spin_unlock(&sbi->ll_lock); | |
310 | ||
311 | mult = 1 << (20 - PAGE_CACHE_SHIFT); | |
73bb1da6 | 312 | return lprocfs_seq_read_frac_helper(m, pages_number, mult); |
d7e09d03 PT |
313 | } |
314 | ||
73bb1da6 | 315 | static ssize_t ll_max_read_ahead_whole_mb_seq_write(struct file *file, |
5a13503e | 316 | const char __user *buffer, |
73bb1da6 | 317 | size_t count, loff_t *off) |
d7e09d03 | 318 | { |
73bb1da6 | 319 | struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
d7e09d03 PT |
320 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
321 | int mult, rc, pages_number; | |
322 | ||
323 | mult = 1 << (20 - PAGE_CACHE_SHIFT); | |
324 | rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); | |
325 | if (rc) | |
326 | return rc; | |
327 | ||
328 | /* Cap this at the current max readahead window size, the readahead | |
329 | * algorithm does this anyway so it's pointless to set it larger. */ | |
330 | if (pages_number < 0 || | |
331 | pages_number > sbi->ll_ra_info.ra_max_pages_per_file) { | |
2d00bd17 JP |
332 | CERROR("can't set max_read_ahead_whole_mb more than max_read_ahead_per_file_mb: %lu\n", |
333 | sbi->ll_ra_info.ra_max_pages_per_file >> (20 - PAGE_CACHE_SHIFT)); | |
d7e09d03 PT |
334 | return -ERANGE; |
335 | } | |
336 | ||
337 | spin_lock(&sbi->ll_lock); | |
338 | sbi->ll_ra_info.ra_max_read_ahead_whole_pages = pages_number; | |
339 | spin_unlock(&sbi->ll_lock); | |
340 | ||
341 | return count; | |
342 | } | |
73bb1da6 | 343 | LPROC_SEQ_FOPS(ll_max_read_ahead_whole_mb); |
d7e09d03 | 344 | |
73bb1da6 | 345 | static int ll_max_cached_mb_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 346 | { |
73bb1da6 | 347 | struct super_block *sb = m->private; |
d7e09d03 PT |
348 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
349 | struct cl_client_cache *cache = &sbi->ll_cache; | |
350 | int shift = 20 - PAGE_CACHE_SHIFT; | |
351 | int max_cached_mb; | |
352 | int unused_mb; | |
353 | ||
d7e09d03 PT |
354 | max_cached_mb = cache->ccc_lru_max >> shift; |
355 | unused_mb = atomic_read(&cache->ccc_lru_left) >> shift; | |
73bb1da6 | 356 | return seq_printf(m, |
d7e09d03 PT |
357 | "users: %d\n" |
358 | "max_cached_mb: %d\n" | |
359 | "used_mb: %d\n" | |
360 | "unused_mb: %d\n" | |
361 | "reclaim_count: %u\n", | |
362 | atomic_read(&cache->ccc_users), | |
363 | max_cached_mb, | |
364 | max_cached_mb - unused_mb, | |
365 | unused_mb, | |
366 | cache->ccc_lru_shrinkers); | |
367 | } | |
368 | ||
a1e7e2d4 OD |
369 | static ssize_t ll_max_cached_mb_seq_write(struct file *file, |
370 | const char __user *buffer, | |
371 | size_t count, loff_t *off) | |
d7e09d03 | 372 | { |
73bb1da6 | 373 | struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
d7e09d03 PT |
374 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
375 | struct cl_client_cache *cache = &sbi->ll_cache; | |
376 | int mult, rc, pages_number; | |
377 | int diff = 0; | |
378 | int nrpages = 0; | |
a1e7e2d4 OD |
379 | char kernbuf[128]; |
380 | ||
381 | if (count >= sizeof(kernbuf)) | |
382 | return -EINVAL; | |
383 | ||
384 | if (copy_from_user(kernbuf, buffer, count)) | |
385 | return -EFAULT; | |
386 | kernbuf[count] = 0; | |
d7e09d03 PT |
387 | |
388 | mult = 1 << (20 - PAGE_CACHE_SHIFT); | |
a1e7e2d4 OD |
389 | buffer += lprocfs_find_named_value(kernbuf, "max_cached_mb:", &count) - |
390 | kernbuf; | |
d7e09d03 PT |
391 | rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); |
392 | if (rc) | |
0a3bdb00 | 393 | return rc; |
d7e09d03 | 394 | |
4f6cc9ab | 395 | if (pages_number < 0 || pages_number > totalram_pages) { |
d7e09d03 PT |
396 | CERROR("%s: can't set max cache more than %lu MB\n", |
397 | ll_get_fsname(sb, NULL, 0), | |
4f6cc9ab | 398 | totalram_pages >> (20 - PAGE_CACHE_SHIFT)); |
0a3bdb00 | 399 | return -ERANGE; |
d7e09d03 PT |
400 | } |
401 | ||
d7e09d03 PT |
402 | spin_lock(&sbi->ll_lock); |
403 | diff = pages_number - cache->ccc_lru_max; | |
404 | spin_unlock(&sbi->ll_lock); | |
405 | ||
406 | /* easy - add more LRU slots. */ | |
407 | if (diff >= 0) { | |
408 | atomic_add(diff, &cache->ccc_lru_left); | |
34e1f2bb JL |
409 | rc = 0; |
410 | goto out; | |
d7e09d03 PT |
411 | } |
412 | ||
413 | diff = -diff; | |
414 | while (diff > 0) { | |
415 | int tmp; | |
416 | ||
417 | /* reduce LRU budget from free slots. */ | |
418 | do { | |
419 | int ov, nv; | |
420 | ||
421 | ov = atomic_read(&cache->ccc_lru_left); | |
422 | if (ov == 0) | |
423 | break; | |
424 | ||
425 | nv = ov > diff ? ov - diff : 0; | |
305ec768 | 426 | rc = atomic_cmpxchg(&cache->ccc_lru_left, ov, nv); |
d7e09d03 PT |
427 | if (likely(ov == rc)) { |
428 | diff -= ov - nv; | |
429 | nrpages += ov - nv; | |
430 | break; | |
431 | } | |
432 | } while (1); | |
433 | ||
434 | if (diff <= 0) | |
435 | break; | |
436 | ||
c2fcdf6c JX |
437 | if (sbi->ll_dt_exp == NULL) { /* being initialized */ |
438 | rc = -ENODEV; | |
439 | break; | |
440 | } | |
441 | ||
d7e09d03 PT |
442 | /* difficult - have to ask OSCs to drop LRU slots. */ |
443 | tmp = diff << 1; | |
444 | rc = obd_set_info_async(NULL, sbi->ll_dt_exp, | |
445 | sizeof(KEY_CACHE_LRU_SHRINK), | |
446 | KEY_CACHE_LRU_SHRINK, | |
447 | sizeof(tmp), &tmp, NULL); | |
448 | if (rc < 0) | |
449 | break; | |
450 | } | |
451 | ||
452 | out: | |
453 | if (rc >= 0) { | |
454 | spin_lock(&sbi->ll_lock); | |
455 | cache->ccc_lru_max = pages_number; | |
456 | spin_unlock(&sbi->ll_lock); | |
457 | rc = count; | |
458 | } else { | |
459 | atomic_add(nrpages, &cache->ccc_lru_left); | |
460 | } | |
461 | return rc; | |
462 | } | |
73bb1da6 | 463 | LPROC_SEQ_FOPS(ll_max_cached_mb); |
d7e09d03 | 464 | |
73bb1da6 | 465 | static int ll_checksum_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 466 | { |
73bb1da6 | 467 | struct super_block *sb = m->private; |
d7e09d03 PT |
468 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
469 | ||
73bb1da6 | 470 | return seq_printf(m, "%u\n", (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0); |
d7e09d03 PT |
471 | } |
472 | ||
5a13503e AL |
473 | static ssize_t ll_checksum_seq_write(struct file *file, |
474 | const char __user *buffer, | |
475 | size_t count, loff_t *off) | |
d7e09d03 | 476 | { |
73bb1da6 | 477 | struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
d7e09d03 PT |
478 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
479 | int val, rc; | |
480 | ||
481 | if (!sbi->ll_dt_exp) | |
482 | /* Not set up yet */ | |
483 | return -EAGAIN; | |
484 | ||
485 | rc = lprocfs_write_helper(buffer, count, &val); | |
486 | if (rc) | |
487 | return rc; | |
488 | if (val) | |
489 | sbi->ll_flags |= LL_SBI_CHECKSUM; | |
490 | else | |
491 | sbi->ll_flags &= ~LL_SBI_CHECKSUM; | |
492 | ||
493 | rc = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM), | |
494 | KEY_CHECKSUM, sizeof(val), &val, NULL); | |
495 | if (rc) | |
496 | CWARN("Failed to set OSC checksum flags: %d\n", rc); | |
497 | ||
498 | return count; | |
499 | } | |
73bb1da6 | 500 | LPROC_SEQ_FOPS(ll_checksum); |
d7e09d03 | 501 | |
73bb1da6 | 502 | static int ll_max_rw_chunk_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 503 | { |
73bb1da6 | 504 | struct super_block *sb = m->private; |
d7e09d03 | 505 | |
73bb1da6 | 506 | return seq_printf(m, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk); |
d7e09d03 PT |
507 | } |
508 | ||
5a13503e AL |
509 | static ssize_t ll_max_rw_chunk_seq_write(struct file *file, |
510 | const char __user *buffer, | |
511 | size_t count, loff_t *off) | |
d7e09d03 | 512 | { |
73bb1da6 | 513 | struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
d7e09d03 PT |
514 | int rc, val; |
515 | ||
516 | rc = lprocfs_write_helper(buffer, count, &val); | |
517 | if (rc) | |
518 | return rc; | |
519 | ll_s2sbi(sb)->ll_max_rw_chunk = val; | |
520 | return count; | |
521 | } | |
73bb1da6 | 522 | LPROC_SEQ_FOPS(ll_max_rw_chunk); |
d7e09d03 | 523 | |
73bb1da6 | 524 | static int ll_rd_track_id(struct seq_file *m, enum stats_track_type type) |
d7e09d03 | 525 | { |
73bb1da6 | 526 | struct super_block *sb = m->private; |
d7e09d03 PT |
527 | |
528 | if (ll_s2sbi(sb)->ll_stats_track_type == type) { | |
73bb1da6 | 529 | return seq_printf(m, "%d\n", |
d7e09d03 PT |
530 | ll_s2sbi(sb)->ll_stats_track_id); |
531 | ||
532 | } else if (ll_s2sbi(sb)->ll_stats_track_type == STATS_TRACK_ALL) { | |
73bb1da6 | 533 | return seq_printf(m, "0 (all)\n"); |
d7e09d03 | 534 | } else { |
73bb1da6 | 535 | return seq_printf(m, "untracked\n"); |
d7e09d03 PT |
536 | } |
537 | } | |
538 | ||
5a13503e AL |
539 | static int ll_wr_track_id(const char __user *buffer, unsigned long count, |
540 | void *data, enum stats_track_type type) | |
d7e09d03 PT |
541 | { |
542 | struct super_block *sb = data; | |
543 | int rc, pid; | |
544 | ||
545 | rc = lprocfs_write_helper(buffer, count, &pid); | |
546 | if (rc) | |
547 | return rc; | |
548 | ll_s2sbi(sb)->ll_stats_track_id = pid; | |
549 | if (pid == 0) | |
550 | ll_s2sbi(sb)->ll_stats_track_type = STATS_TRACK_ALL; | |
551 | else | |
552 | ll_s2sbi(sb)->ll_stats_track_type = type; | |
553 | lprocfs_clear_stats(ll_s2sbi(sb)->ll_stats); | |
554 | return count; | |
555 | } | |
556 | ||
73bb1da6 | 557 | static int ll_track_pid_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 558 | { |
73bb1da6 | 559 | return ll_rd_track_id(m, STATS_TRACK_PID); |
d7e09d03 PT |
560 | } |
561 | ||
5a13503e AL |
562 | static ssize_t ll_track_pid_seq_write(struct file *file, |
563 | const char __user *buffer, | |
564 | size_t count, loff_t *off) | |
d7e09d03 | 565 | { |
73bb1da6 PT |
566 | struct seq_file *seq = file->private_data; |
567 | return ll_wr_track_id(buffer, count, seq->private, STATS_TRACK_PID); | |
d7e09d03 | 568 | } |
73bb1da6 | 569 | LPROC_SEQ_FOPS(ll_track_pid); |
d7e09d03 | 570 | |
73bb1da6 | 571 | static int ll_track_ppid_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 572 | { |
73bb1da6 | 573 | return ll_rd_track_id(m, STATS_TRACK_PPID); |
d7e09d03 PT |
574 | } |
575 | ||
5a13503e AL |
576 | static ssize_t ll_track_ppid_seq_write(struct file *file, |
577 | const char __user *buffer, | |
578 | size_t count, loff_t *off) | |
d7e09d03 | 579 | { |
73bb1da6 PT |
580 | struct seq_file *seq = file->private_data; |
581 | return ll_wr_track_id(buffer, count, seq->private, STATS_TRACK_PPID); | |
d7e09d03 | 582 | } |
73bb1da6 | 583 | LPROC_SEQ_FOPS(ll_track_ppid); |
d7e09d03 | 584 | |
73bb1da6 | 585 | static int ll_track_gid_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 586 | { |
73bb1da6 | 587 | return ll_rd_track_id(m, STATS_TRACK_GID); |
d7e09d03 PT |
588 | } |
589 | ||
5a13503e AL |
590 | static ssize_t ll_track_gid_seq_write(struct file *file, |
591 | const char __user *buffer, | |
592 | size_t count, loff_t *off) | |
d7e09d03 | 593 | { |
73bb1da6 PT |
594 | struct seq_file *seq = file->private_data; |
595 | return ll_wr_track_id(buffer, count, seq->private, STATS_TRACK_GID); | |
d7e09d03 | 596 | } |
73bb1da6 | 597 | LPROC_SEQ_FOPS(ll_track_gid); |
d7e09d03 | 598 | |
73bb1da6 | 599 | static int ll_statahead_max_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 600 | { |
73bb1da6 | 601 | struct super_block *sb = m->private; |
d7e09d03 PT |
602 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
603 | ||
73bb1da6 | 604 | return seq_printf(m, "%u\n", sbi->ll_sa_max); |
d7e09d03 PT |
605 | } |
606 | ||
5a13503e AL |
607 | static ssize_t ll_statahead_max_seq_write(struct file *file, |
608 | const char __user *buffer, | |
609 | size_t count, loff_t *off) | |
d7e09d03 | 610 | { |
73bb1da6 | 611 | struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
d7e09d03 PT |
612 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
613 | int val, rc; | |
614 | ||
615 | rc = lprocfs_write_helper(buffer, count, &val); | |
616 | if (rc) | |
617 | return rc; | |
618 | ||
619 | if (val >= 0 && val <= LL_SA_RPC_MAX) | |
620 | sbi->ll_sa_max = val; | |
621 | else | |
2d00bd17 JP |
622 | CERROR("Bad statahead_max value %d. Valid values are in the range [0, %d]\n", |
623 | val, LL_SA_RPC_MAX); | |
d7e09d03 PT |
624 | |
625 | return count; | |
626 | } | |
73bb1da6 | 627 | LPROC_SEQ_FOPS(ll_statahead_max); |
d7e09d03 | 628 | |
73bb1da6 | 629 | static int ll_statahead_agl_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 630 | { |
73bb1da6 | 631 | struct super_block *sb = m->private; |
d7e09d03 PT |
632 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
633 | ||
73bb1da6 | 634 | return seq_printf(m, "%u\n", |
d7e09d03 PT |
635 | sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0); |
636 | } | |
637 | ||
5a13503e AL |
638 | static ssize_t ll_statahead_agl_seq_write(struct file *file, |
639 | const char __user *buffer, | |
640 | size_t count, loff_t *off) | |
d7e09d03 | 641 | { |
73bb1da6 | 642 | struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
d7e09d03 PT |
643 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
644 | int val, rc; | |
645 | ||
646 | rc = lprocfs_write_helper(buffer, count, &val); | |
647 | if (rc) | |
648 | return rc; | |
649 | ||
650 | if (val) | |
651 | sbi->ll_flags |= LL_SBI_AGL_ENABLED; | |
652 | else | |
653 | sbi->ll_flags &= ~LL_SBI_AGL_ENABLED; | |
654 | ||
655 | return count; | |
656 | } | |
73bb1da6 | 657 | LPROC_SEQ_FOPS(ll_statahead_agl); |
d7e09d03 | 658 | |
73bb1da6 | 659 | static int ll_statahead_stats_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 660 | { |
73bb1da6 | 661 | struct super_block *sb = m->private; |
d7e09d03 PT |
662 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
663 | ||
73bb1da6 | 664 | return seq_printf(m, |
d7e09d03 PT |
665 | "statahead total: %u\n" |
666 | "statahead wrong: %u\n" | |
667 | "agl total: %u\n", | |
668 | atomic_read(&sbi->ll_sa_total), | |
669 | atomic_read(&sbi->ll_sa_wrong), | |
670 | atomic_read(&sbi->ll_agl_total)); | |
671 | } | |
73bb1da6 | 672 | LPROC_SEQ_FOPS_RO(ll_statahead_stats); |
d7e09d03 | 673 | |
73bb1da6 | 674 | static int ll_lazystatfs_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 | ||
73bb1da6 | 679 | return seq_printf(m, "%u\n", |
d7e09d03 PT |
680 | (sbi->ll_flags & LL_SBI_LAZYSTATFS) ? 1 : 0); |
681 | } | |
682 | ||
5a13503e AL |
683 | static ssize_t ll_lazystatfs_seq_write(struct file *file, |
684 | const char __user *buffer, | |
685 | size_t count, loff_t *off) | |
d7e09d03 | 686 | { |
73bb1da6 | 687 | struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
d7e09d03 PT |
688 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
689 | int val, rc; | |
690 | ||
691 | rc = lprocfs_write_helper(buffer, count, &val); | |
692 | if (rc) | |
693 | return rc; | |
694 | ||
695 | if (val) | |
696 | sbi->ll_flags |= LL_SBI_LAZYSTATFS; | |
697 | else | |
698 | sbi->ll_flags &= ~LL_SBI_LAZYSTATFS; | |
699 | ||
700 | return count; | |
701 | } | |
73bb1da6 | 702 | LPROC_SEQ_FOPS(ll_lazystatfs); |
d7e09d03 | 703 | |
44779340 | 704 | static int ll_max_easize_seq_show(struct seq_file *m, void *v) |
d7e09d03 | 705 | { |
73bb1da6 | 706 | struct super_block *sb = m->private; |
d7e09d03 PT |
707 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
708 | unsigned int ealen; | |
709 | int rc; | |
710 | ||
711 | rc = ll_get_max_mdsize(sbi, &ealen); | |
712 | if (rc) | |
713 | return rc; | |
714 | ||
73bb1da6 | 715 | return seq_printf(m, "%u\n", ealen); |
d7e09d03 | 716 | } |
44779340 BB |
717 | LPROC_SEQ_FOPS_RO(ll_max_easize); |
718 | ||
719 | static int ll_defult_easize_seq_show(struct seq_file *m, void *v) | |
720 | { | |
721 | struct super_block *sb = m->private; | |
722 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
723 | unsigned int ealen; | |
724 | int rc; | |
725 | ||
726 | rc = ll_get_default_mdsize(sbi, &ealen); | |
727 | if (rc) | |
728 | return rc; | |
729 | ||
730 | return seq_printf(m, "%u\n", ealen); | |
731 | } | |
732 | LPROC_SEQ_FOPS_RO(ll_defult_easize); | |
733 | ||
734 | static int ll_max_cookiesize_seq_show(struct seq_file *m, void *v) | |
735 | { | |
736 | struct super_block *sb = m->private; | |
737 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
738 | unsigned int cookielen; | |
739 | int rc; | |
740 | ||
741 | rc = ll_get_max_cookiesize(sbi, &cookielen); | |
742 | if (rc) | |
743 | return rc; | |
744 | ||
745 | return seq_printf(m, "%u\n", cookielen); | |
746 | } | |
747 | LPROC_SEQ_FOPS_RO(ll_max_cookiesize); | |
748 | ||
749 | static int ll_defult_cookiesize_seq_show(struct seq_file *m, void *v) | |
750 | { | |
751 | struct super_block *sb = m->private; | |
752 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
753 | unsigned int cookielen; | |
754 | int rc; | |
755 | ||
756 | rc = ll_get_default_cookiesize(sbi, &cookielen); | |
757 | if (rc) | |
758 | return rc; | |
759 | ||
760 | return seq_printf(m, "%u\n", cookielen); | |
761 | } | |
762 | LPROC_SEQ_FOPS_RO(ll_defult_cookiesize); | |
d7e09d03 | 763 | |
73bb1da6 | 764 | static int ll_sbi_flags_seq_show(struct seq_file *m, void *v) |
d7e09d03 PT |
765 | { |
766 | const char *str[] = LL_SBI_FLAGS; | |
73bb1da6 | 767 | struct super_block *sb = m->private; |
d7e09d03 PT |
768 | int flags = ll_s2sbi(sb)->ll_flags; |
769 | int i = 0; | |
d7e09d03 PT |
770 | |
771 | while (flags != 0) { | |
772 | if (ARRAY_SIZE(str) <= i) { | |
2d00bd17 JP |
773 | CERROR("%s: Revise array LL_SBI_FLAGS to match sbi flags please.\n", |
774 | ll_get_fsname(sb, NULL, 0)); | |
d7e09d03 PT |
775 | return -EINVAL; |
776 | } | |
777 | ||
778 | if (flags & 0x1) | |
73bb1da6 | 779 | seq_printf(m, "%s ", str[i]); |
d7e09d03 PT |
780 | flags >>= 1; |
781 | ++i; | |
782 | } | |
73bb1da6 PT |
783 | seq_printf(m, "\b\n"); |
784 | return 0; | |
d7e09d03 | 785 | } |
73bb1da6 | 786 | LPROC_SEQ_FOPS_RO(ll_sbi_flags); |
d7e09d03 | 787 | |
7fc1f831 AP |
788 | static int ll_xattr_cache_seq_show(struct seq_file *m, void *v) |
789 | { | |
790 | struct super_block *sb = m->private; | |
791 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
792 | int rc; | |
793 | ||
794 | rc = seq_printf(m, "%u\n", sbi->ll_xattr_cache_enabled); | |
795 | ||
796 | return rc; | |
797 | } | |
798 | ||
5a13503e AL |
799 | static ssize_t ll_xattr_cache_seq_write(struct file *file, |
800 | const char __user *buffer, | |
7fc1f831 AP |
801 | size_t count, loff_t *off) |
802 | { | |
803 | struct seq_file *seq = file->private_data; | |
804 | struct super_block *sb = seq->private; | |
805 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
806 | int val, rc; | |
807 | ||
808 | rc = lprocfs_write_helper(buffer, count, &val); | |
809 | if (rc) | |
810 | return rc; | |
811 | ||
812 | if (val != 0 && val != 1) | |
813 | return -ERANGE; | |
814 | ||
815 | if (val == 1 && !(sbi->ll_flags & LL_SBI_XATTR_CACHE)) | |
816 | return -ENOTSUPP; | |
817 | ||
818 | sbi->ll_xattr_cache_enabled = val; | |
819 | ||
820 | return count; | |
821 | } | |
822 | LPROC_SEQ_FOPS(ll_xattr_cache); | |
823 | ||
d7e09d03 | 824 | static struct lprocfs_vars lprocfs_llite_obd_vars[] = { |
95b86a76 | 825 | { "uuid", &ll_sb_uuid_fops, NULL, 0 }, |
588bf52a | 826 | /* { "mntpt_path", ll_rd_path, 0, 0 }, */ |
95b86a76 SL |
827 | { "fstype", &ll_fstype_fops, NULL, 0 }, |
828 | { "site", &ll_site_stats_fops, NULL, 0 }, | |
829 | { "blocksize", &ll_blksize_fops, NULL, 0 }, | |
830 | { "kbytestotal", &ll_kbytestotal_fops, NULL, 0 }, | |
831 | { "kbytesfree", &ll_kbytesfree_fops, NULL, 0 }, | |
832 | { "kbytesavail", &ll_kbytesavail_fops, NULL, 0 }, | |
833 | { "filestotal", &ll_filestotal_fops, NULL, 0 }, | |
834 | { "filesfree", &ll_filesfree_fops, NULL, 0 }, | |
835 | { "client_type", &ll_client_type_fops, NULL, 0 }, | |
588bf52a | 836 | /* { "filegroups", lprocfs_rd_filegroups, 0, 0 }, */ |
95b86a76 SL |
837 | { "max_read_ahead_mb", &ll_max_readahead_mb_fops, NULL }, |
838 | { "max_read_ahead_per_file_mb", &ll_max_readahead_per_file_mb_fops, | |
839 | NULL }, | |
840 | { "max_read_ahead_whole_mb", &ll_max_read_ahead_whole_mb_fops, NULL }, | |
841 | { "max_cached_mb", &ll_max_cached_mb_fops, NULL }, | |
842 | { "checksum_pages", &ll_checksum_fops, NULL }, | |
843 | { "max_rw_chunk", &ll_max_rw_chunk_fops, NULL }, | |
844 | { "stats_track_pid", &ll_track_pid_fops, NULL }, | |
845 | { "stats_track_ppid", &ll_track_ppid_fops, NULL }, | |
846 | { "stats_track_gid", &ll_track_gid_fops, NULL }, | |
847 | { "statahead_max", &ll_statahead_max_fops, NULL }, | |
848 | { "statahead_agl", &ll_statahead_agl_fops, NULL }, | |
849 | { "statahead_stats", &ll_statahead_stats_fops, NULL, 0 }, | |
850 | { "lazystatfs", &ll_lazystatfs_fops, NULL }, | |
851 | { "max_easize", &ll_max_easize_fops, NULL, 0 }, | |
852 | { "default_easize", &ll_defult_easize_fops, NULL, 0 }, | |
853 | { "max_cookiesize", &ll_max_cookiesize_fops, NULL, 0 }, | |
854 | { "default_cookiesize", &ll_defult_cookiesize_fops, NULL, 0 }, | |
855 | { "sbi_flags", &ll_sbi_flags_fops, NULL, 0 }, | |
856 | { "xattr_cache", &ll_xattr_cache_fops, NULL, 0 }, | |
ea7893bb | 857 | { NULL } |
d7e09d03 PT |
858 | }; |
859 | ||
860 | #define MAX_STRING_SIZE 128 | |
861 | ||
2d95f10e | 862 | static const struct llite_file_opcode { |
d7e09d03 PT |
863 | __u32 opcode; |
864 | __u32 type; | |
865 | const char *opname; | |
866 | } llite_opcode_table[LPROC_LL_FILE_OPCODES] = { | |
867 | /* file operation */ | |
868 | { LPROC_LL_DIRTY_HITS, LPROCFS_TYPE_REGS, "dirty_pages_hits" }, | |
869 | { LPROC_LL_DIRTY_MISSES, LPROCFS_TYPE_REGS, "dirty_pages_misses" }, | |
870 | { LPROC_LL_READ_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES, | |
871 | "read_bytes" }, | |
872 | { LPROC_LL_WRITE_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES, | |
873 | "write_bytes" }, | |
874 | { LPROC_LL_BRW_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES, | |
875 | "brw_read" }, | |
876 | { LPROC_LL_BRW_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES, | |
877 | "brw_write" }, | |
878 | { LPROC_LL_OSC_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES, | |
879 | "osc_read" }, | |
880 | { LPROC_LL_OSC_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES, | |
881 | "osc_write" }, | |
882 | { LPROC_LL_IOCTL, LPROCFS_TYPE_REGS, "ioctl" }, | |
883 | { LPROC_LL_OPEN, LPROCFS_TYPE_REGS, "open" }, | |
884 | { LPROC_LL_RELEASE, LPROCFS_TYPE_REGS, "close" }, | |
885 | { LPROC_LL_MAP, LPROCFS_TYPE_REGS, "mmap" }, | |
886 | { LPROC_LL_LLSEEK, LPROCFS_TYPE_REGS, "seek" }, | |
887 | { LPROC_LL_FSYNC, LPROCFS_TYPE_REGS, "fsync" }, | |
888 | { LPROC_LL_READDIR, LPROCFS_TYPE_REGS, "readdir" }, | |
889 | /* inode operation */ | |
890 | { LPROC_LL_SETATTR, LPROCFS_TYPE_REGS, "setattr" }, | |
891 | { LPROC_LL_TRUNC, LPROCFS_TYPE_REGS, "truncate" }, | |
892 | { LPROC_LL_FLOCK, LPROCFS_TYPE_REGS, "flock" }, | |
893 | { LPROC_LL_GETATTR, LPROCFS_TYPE_REGS, "getattr" }, | |
894 | /* dir inode operation */ | |
895 | { LPROC_LL_CREATE, LPROCFS_TYPE_REGS, "create" }, | |
896 | { LPROC_LL_LINK, LPROCFS_TYPE_REGS, "link" }, | |
897 | { LPROC_LL_UNLINK, LPROCFS_TYPE_REGS, "unlink" }, | |
898 | { LPROC_LL_SYMLINK, LPROCFS_TYPE_REGS, "symlink" }, | |
899 | { LPROC_LL_MKDIR, LPROCFS_TYPE_REGS, "mkdir" }, | |
900 | { LPROC_LL_RMDIR, LPROCFS_TYPE_REGS, "rmdir" }, | |
901 | { LPROC_LL_MKNOD, LPROCFS_TYPE_REGS, "mknod" }, | |
902 | { LPROC_LL_RENAME, LPROCFS_TYPE_REGS, "rename" }, | |
903 | /* special inode operation */ | |
904 | { LPROC_LL_STAFS, LPROCFS_TYPE_REGS, "statfs" }, | |
905 | { LPROC_LL_ALLOC_INODE, LPROCFS_TYPE_REGS, "alloc_inode" }, | |
906 | { LPROC_LL_SETXATTR, LPROCFS_TYPE_REGS, "setxattr" }, | |
907 | { LPROC_LL_GETXATTR, LPROCFS_TYPE_REGS, "getxattr" }, | |
7fc1f831 | 908 | { LPROC_LL_GETXATTR_HITS, LPROCFS_TYPE_REGS, "getxattr_hits" }, |
d7e09d03 PT |
909 | { LPROC_LL_LISTXATTR, LPROCFS_TYPE_REGS, "listxattr" }, |
910 | { LPROC_LL_REMOVEXATTR, LPROCFS_TYPE_REGS, "removexattr" }, | |
911 | { LPROC_LL_INODE_PERM, LPROCFS_TYPE_REGS, "inode_permission" }, | |
912 | }; | |
913 | ||
914 | void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count) | |
915 | { | |
916 | if (!sbi->ll_stats) | |
917 | return; | |
918 | if (sbi->ll_stats_track_type == STATS_TRACK_ALL) | |
919 | lprocfs_counter_add(sbi->ll_stats, op, count); | |
920 | else if (sbi->ll_stats_track_type == STATS_TRACK_PID && | |
921 | sbi->ll_stats_track_id == current->pid) | |
922 | lprocfs_counter_add(sbi->ll_stats, op, count); | |
923 | else if (sbi->ll_stats_track_type == STATS_TRACK_PPID && | |
b1beb91b | 924 | sbi->ll_stats_track_id == current->real_parent->pid) |
d7e09d03 PT |
925 | lprocfs_counter_add(sbi->ll_stats, op, count); |
926 | else if (sbi->ll_stats_track_type == STATS_TRACK_GID && | |
4b1a25f0 PT |
927 | sbi->ll_stats_track_id == |
928 | from_kgid(&init_user_ns, current_gid())) | |
d7e09d03 PT |
929 | lprocfs_counter_add(sbi->ll_stats, op, count); |
930 | } | |
931 | EXPORT_SYMBOL(ll_stats_ops_tally); | |
932 | ||
933 | static const char *ra_stat_string[] = { | |
934 | [RA_STAT_HIT] = "hits", | |
935 | [RA_STAT_MISS] = "misses", | |
936 | [RA_STAT_DISTANT_READPAGE] = "readpage not consecutive", | |
937 | [RA_STAT_MISS_IN_WINDOW] = "miss inside window", | |
938 | [RA_STAT_FAILED_GRAB_PAGE] = "failed grab_cache_page", | |
939 | [RA_STAT_FAILED_MATCH] = "failed lock match", | |
940 | [RA_STAT_DISCARDED] = "read but discarded", | |
941 | [RA_STAT_ZERO_LEN] = "zero length file", | |
942 | [RA_STAT_ZERO_WINDOW] = "zero size window", | |
943 | [RA_STAT_EOF] = "read-ahead to EOF", | |
944 | [RA_STAT_MAX_IN_FLIGHT] = "hit max r-a issue", | |
945 | [RA_STAT_WRONG_GRAB_PAGE] = "wrong page from grab_cache_page", | |
946 | }; | |
947 | ||
73bb1da6 PT |
948 | LPROC_SEQ_FOPS_RO_TYPE(llite, name); |
949 | LPROC_SEQ_FOPS_RO_TYPE(llite, uuid); | |
d7e09d03 PT |
950 | |
951 | int lprocfs_register_mountpoint(struct proc_dir_entry *parent, | |
952 | struct super_block *sb, char *osc, char *mdc) | |
953 | { | |
954 | struct lprocfs_vars lvars[2]; | |
955 | struct lustre_sb_info *lsi = s2lsi(sb); | |
956 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
957 | struct obd_device *obd; | |
b59fe845 | 958 | struct proc_dir_entry *dir; |
d7e09d03 PT |
959 | char name[MAX_STRING_SIZE + 1], *ptr; |
960 | int err, id, len, rc; | |
d7e09d03 PT |
961 | |
962 | memset(lvars, 0, sizeof(lvars)); | |
963 | ||
964 | name[MAX_STRING_SIZE] = '\0'; | |
965 | lvars[0].name = name; | |
966 | ||
967 | LASSERT(sbi != NULL); | |
968 | LASSERT(mdc != NULL); | |
969 | LASSERT(osc != NULL); | |
970 | ||
971 | /* Get fsname */ | |
972 | len = strlen(lsi->lsi_lmd->lmd_profile); | |
973 | ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-'); | |
974 | if (ptr && (strcmp(ptr, "-client") == 0)) | |
975 | len -= 7; | |
976 | ||
977 | /* Mount info */ | |
978 | snprintf(name, MAX_STRING_SIZE, "%.*s-%p", len, | |
979 | lsi->lsi_lmd->lmd_profile, sb); | |
980 | ||
981 | sbi->ll_proc_root = lprocfs_register(name, parent, NULL, NULL); | |
982 | if (IS_ERR(sbi->ll_proc_root)) { | |
983 | err = PTR_ERR(sbi->ll_proc_root); | |
984 | sbi->ll_proc_root = NULL; | |
0a3bdb00 | 985 | return err; |
d7e09d03 PT |
986 | } |
987 | ||
988 | rc = lprocfs_seq_create(sbi->ll_proc_root, "dump_page_cache", 0444, | |
989 | &vvp_dump_pgcache_file_ops, sbi); | |
990 | if (rc) | |
991 | CWARN("Error adding the dump_page_cache file\n"); | |
992 | ||
993 | rc = lprocfs_seq_create(sbi->ll_proc_root, "extents_stats", 0644, | |
994 | &ll_rw_extents_stats_fops, sbi); | |
995 | if (rc) | |
996 | CWARN("Error adding the extent_stats file\n"); | |
997 | ||
998 | rc = lprocfs_seq_create(sbi->ll_proc_root, "extents_stats_per_process", | |
999 | 0644, &ll_rw_extents_stats_pp_fops, sbi); | |
1000 | if (rc) | |
1001 | CWARN("Error adding the extents_stats_per_process file\n"); | |
1002 | ||
1003 | rc = lprocfs_seq_create(sbi->ll_proc_root, "offset_stats", 0644, | |
1004 | &ll_rw_offset_stats_fops, sbi); | |
1005 | if (rc) | |
1006 | CWARN("Error adding the offset_stats file\n"); | |
1007 | ||
1008 | /* File operations stats */ | |
1009 | sbi->ll_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES, | |
1010 | LPROCFS_STATS_FLAG_NONE); | |
34e1f2bb JL |
1011 | if (sbi->ll_stats == NULL) { |
1012 | err = -ENOMEM; | |
1013 | goto out; | |
1014 | } | |
d7e09d03 PT |
1015 | /* do counter init */ |
1016 | for (id = 0; id < LPROC_LL_FILE_OPCODES; id++) { | |
1017 | __u32 type = llite_opcode_table[id].type; | |
1018 | void *ptr = NULL; | |
1019 | if (type & LPROCFS_TYPE_REGS) | |
1020 | ptr = "regs"; | |
1021 | else if (type & LPROCFS_TYPE_BYTES) | |
1022 | ptr = "bytes"; | |
1023 | else if (type & LPROCFS_TYPE_PAGES) | |
1024 | ptr = "pages"; | |
1025 | lprocfs_counter_init(sbi->ll_stats, | |
1026 | llite_opcode_table[id].opcode, | |
1027 | (type & LPROCFS_CNTR_AVGMINMAX), | |
1028 | llite_opcode_table[id].opname, ptr); | |
1029 | } | |
1030 | err = lprocfs_register_stats(sbi->ll_proc_root, "stats", sbi->ll_stats); | |
1031 | if (err) | |
34e1f2bb | 1032 | goto out; |
d7e09d03 PT |
1033 | |
1034 | sbi->ll_ra_stats = lprocfs_alloc_stats(ARRAY_SIZE(ra_stat_string), | |
1035 | LPROCFS_STATS_FLAG_NONE); | |
34e1f2bb JL |
1036 | if (sbi->ll_ra_stats == NULL) { |
1037 | err = -ENOMEM; | |
1038 | goto out; | |
1039 | } | |
d7e09d03 PT |
1040 | |
1041 | for (id = 0; id < ARRAY_SIZE(ra_stat_string); id++) | |
1042 | lprocfs_counter_init(sbi->ll_ra_stats, id, 0, | |
1043 | ra_stat_string[id], "pages"); | |
1044 | err = lprocfs_register_stats(sbi->ll_proc_root, "read_ahead_stats", | |
1045 | sbi->ll_ra_stats); | |
1046 | if (err) | |
34e1f2bb | 1047 | goto out; |
d7e09d03 PT |
1048 | |
1049 | ||
1050 | err = lprocfs_add_vars(sbi->ll_proc_root, lprocfs_llite_obd_vars, sb); | |
1051 | if (err) | |
34e1f2bb | 1052 | goto out; |
d7e09d03 PT |
1053 | |
1054 | /* MDC info */ | |
1055 | obd = class_name2obd(mdc); | |
1056 | ||
1057 | LASSERT(obd != NULL); | |
1058 | LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC); | |
1059 | LASSERT(obd->obd_type->typ_name != NULL); | |
1060 | ||
73bb1da6 | 1061 | dir = proc_mkdir(obd->obd_type->typ_name, sbi->ll_proc_root); |
34e1f2bb JL |
1062 | if (dir == NULL) { |
1063 | err = -ENOMEM; | |
1064 | goto out; | |
1065 | } | |
73bb1da6 PT |
1066 | |
1067 | snprintf(name, MAX_STRING_SIZE, "common_name"); | |
1068 | lvars[0].fops = &llite_name_fops; | |
1069 | err = lprocfs_add_vars(dir, lvars, obd); | |
d7e09d03 | 1070 | if (err) |
34e1f2bb | 1071 | goto out; |
d7e09d03 | 1072 | |
73bb1da6 PT |
1073 | snprintf(name, MAX_STRING_SIZE, "uuid"); |
1074 | lvars[0].fops = &llite_uuid_fops; | |
1075 | err = lprocfs_add_vars(dir, lvars, obd); | |
d7e09d03 | 1076 | if (err) |
34e1f2bb | 1077 | goto out; |
d7e09d03 PT |
1078 | |
1079 | /* OSC */ | |
1080 | obd = class_name2obd(osc); | |
1081 | ||
1082 | LASSERT(obd != NULL); | |
1083 | LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC); | |
1084 | LASSERT(obd->obd_type->typ_name != NULL); | |
1085 | ||
73bb1da6 | 1086 | dir = proc_mkdir(obd->obd_type->typ_name, sbi->ll_proc_root); |
34e1f2bb JL |
1087 | if (dir == NULL) { |
1088 | err = -ENOMEM; | |
1089 | goto out; | |
1090 | } | |
73bb1da6 PT |
1091 | |
1092 | snprintf(name, MAX_STRING_SIZE, "common_name"); | |
1093 | lvars[0].fops = &llite_name_fops; | |
1094 | err = lprocfs_add_vars(dir, lvars, obd); | |
d7e09d03 | 1095 | if (err) |
34e1f2bb | 1096 | goto out; |
d7e09d03 | 1097 | |
73bb1da6 PT |
1098 | snprintf(name, MAX_STRING_SIZE, "uuid"); |
1099 | lvars[0].fops = &llite_uuid_fops; | |
1100 | err = lprocfs_add_vars(dir, lvars, obd); | |
d7e09d03 PT |
1101 | out: |
1102 | if (err) { | |
1103 | lprocfs_remove(&sbi->ll_proc_root); | |
1104 | lprocfs_free_stats(&sbi->ll_ra_stats); | |
1105 | lprocfs_free_stats(&sbi->ll_stats); | |
1106 | } | |
0a3bdb00 | 1107 | return err; |
d7e09d03 PT |
1108 | } |
1109 | ||
1110 | void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi) | |
1111 | { | |
1112 | if (sbi->ll_proc_root) { | |
1113 | lprocfs_remove(&sbi->ll_proc_root); | |
1114 | lprocfs_free_stats(&sbi->ll_ra_stats); | |
1115 | lprocfs_free_stats(&sbi->ll_stats); | |
1116 | } | |
1117 | } | |
1118 | #undef MAX_STRING_SIZE | |
1119 | ||
1d8cb70c | 1120 | #define pct(a, b) (b ? a * 100 / b : 0) |
d7e09d03 PT |
1121 | |
1122 | static void ll_display_extents_info(struct ll_rw_extents_info *io_extents, | |
1123 | struct seq_file *seq, int which) | |
1124 | { | |
1125 | unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum; | |
1126 | unsigned long start, end, r, w; | |
1127 | char *unitp = "KMGTPEZY"; | |
1128 | int i, units = 10; | |
1129 | struct per_process_info *pp_info = &io_extents->pp_extents[which]; | |
1130 | ||
1131 | read_cum = 0; | |
1132 | write_cum = 0; | |
1133 | start = 0; | |
1134 | ||
a58a38ac | 1135 | for (i = 0; i < LL_HIST_MAX; i++) { |
d7e09d03 PT |
1136 | read_tot += pp_info->pp_r_hist.oh_buckets[i]; |
1137 | write_tot += pp_info->pp_w_hist.oh_buckets[i]; | |
1138 | } | |
1139 | ||
a58a38ac | 1140 | for (i = 0; i < LL_HIST_MAX; i++) { |
d7e09d03 PT |
1141 | r = pp_info->pp_r_hist.oh_buckets[i]; |
1142 | w = pp_info->pp_w_hist.oh_buckets[i]; | |
1143 | read_cum += r; | |
1144 | write_cum += w; | |
1145 | end = 1 << (i + LL_HIST_START - units); | |
2d00bd17 JP |
1146 | seq_printf(seq, "%4lu%c - %4lu%c%c: %14lu %4lu %4lu | %14lu %4lu %4lu\n", |
1147 | start, *unitp, end, *unitp, | |
d7e09d03 PT |
1148 | (i == LL_HIST_MAX - 1) ? '+' : ' ', |
1149 | r, pct(r, read_tot), pct(read_cum, read_tot), | |
1150 | w, pct(w, write_tot), pct(write_cum, write_tot)); | |
1151 | start = end; | |
1152 | if (start == 1<<10) { | |
1153 | start = 1; | |
1154 | units += 10; | |
1155 | unitp++; | |
1156 | } | |
1157 | if (read_cum == read_tot && write_cum == write_tot) | |
1158 | break; | |
1159 | } | |
1160 | } | |
1161 | ||
1162 | static int ll_rw_extents_stats_pp_seq_show(struct seq_file *seq, void *v) | |
1163 | { | |
1164 | struct timeval now; | |
1165 | struct ll_sb_info *sbi = seq->private; | |
1166 | struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; | |
1167 | int k; | |
1168 | ||
1169 | do_gettimeofday(&now); | |
1170 | ||
1171 | if (!sbi->ll_rw_stats_on) { | |
1172 | seq_printf(seq, "disabled\n" | |
2d00bd17 | 1173 | "write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n"); |
d7e09d03 PT |
1174 | return 0; |
1175 | } | |
1176 | seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n", | |
996adff8 | 1177 | now.tv_sec, (unsigned long)now.tv_usec); |
d7e09d03 PT |
1178 | seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write"); |
1179 | seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n", | |
1180 | "extents", "calls", "%", "cum%", | |
1181 | "calls", "%", "cum%"); | |
1182 | spin_lock(&sbi->ll_pp_extent_lock); | |
1183 | for (k = 0; k < LL_PROCESS_HIST_MAX; k++) { | |
1184 | if (io_extents->pp_extents[k].pid != 0) { | |
1185 | seq_printf(seq, "\nPID: %d\n", | |
1186 | io_extents->pp_extents[k].pid); | |
1187 | ll_display_extents_info(io_extents, seq, k); | |
1188 | } | |
1189 | } | |
1190 | spin_unlock(&sbi->ll_pp_extent_lock); | |
1191 | return 0; | |
1192 | } | |
1193 | ||
1194 | static ssize_t ll_rw_extents_stats_pp_seq_write(struct file *file, | |
a1e7e2d4 OD |
1195 | const char __user *buf, |
1196 | size_t len, | |
d7e09d03 PT |
1197 | loff_t *off) |
1198 | { | |
1199 | struct seq_file *seq = file->private_data; | |
1200 | struct ll_sb_info *sbi = seq->private; | |
1201 | struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; | |
1202 | int i; | |
1203 | int value = 1, rc = 0; | |
1204 | ||
a1e7e2d4 OD |
1205 | if (len == 0) |
1206 | return -EINVAL; | |
1207 | ||
d7e09d03 | 1208 | rc = lprocfs_write_helper(buf, len, &value); |
a1e7e2d4 OD |
1209 | if (rc < 0 && len < 16) { |
1210 | char kernbuf[16]; | |
1211 | ||
1212 | if (copy_from_user(kernbuf, buf, len)) | |
1213 | return -EFAULT; | |
1214 | kernbuf[len] = 0; | |
1215 | ||
1216 | if (kernbuf[len - 1] == '\n') | |
1217 | kernbuf[len - 1] = 0; | |
1218 | ||
1219 | if (strcmp(kernbuf, "disabled") == 0 || | |
1220 | strcmp(kernbuf, "Disabled") == 0) | |
1221 | value = 0; | |
1222 | } | |
d7e09d03 PT |
1223 | |
1224 | if (value == 0) | |
1225 | sbi->ll_rw_stats_on = 0; | |
1226 | else | |
1227 | sbi->ll_rw_stats_on = 1; | |
1228 | ||
1229 | spin_lock(&sbi->ll_pp_extent_lock); | |
1230 | for (i = 0; i < LL_PROCESS_HIST_MAX; i++) { | |
1231 | io_extents->pp_extents[i].pid = 0; | |
1232 | lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist); | |
1233 | lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist); | |
1234 | } | |
1235 | spin_unlock(&sbi->ll_pp_extent_lock); | |
1236 | return len; | |
1237 | } | |
1238 | ||
1239 | LPROC_SEQ_FOPS(ll_rw_extents_stats_pp); | |
1240 | ||
1241 | static int ll_rw_extents_stats_seq_show(struct seq_file *seq, void *v) | |
1242 | { | |
1243 | struct timeval now; | |
1244 | struct ll_sb_info *sbi = seq->private; | |
1245 | struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; | |
1246 | ||
1247 | do_gettimeofday(&now); | |
1248 | ||
1249 | if (!sbi->ll_rw_stats_on) { | |
1250 | seq_printf(seq, "disabled\n" | |
2d00bd17 | 1251 | "write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n"); |
d7e09d03 PT |
1252 | return 0; |
1253 | } | |
1254 | seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n", | |
996adff8 | 1255 | now.tv_sec, (unsigned long)now.tv_usec); |
d7e09d03 PT |
1256 | |
1257 | seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write"); | |
1258 | seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n", | |
1259 | "extents", "calls", "%", "cum%", | |
1260 | "calls", "%", "cum%"); | |
1261 | spin_lock(&sbi->ll_lock); | |
1262 | ll_display_extents_info(io_extents, seq, LL_PROCESS_HIST_MAX); | |
1263 | spin_unlock(&sbi->ll_lock); | |
1264 | ||
1265 | return 0; | |
1266 | } | |
1267 | ||
a1e7e2d4 OD |
1268 | static ssize_t ll_rw_extents_stats_seq_write(struct file *file, |
1269 | const char __user *buf, | |
1270 | size_t len, loff_t *off) | |
d7e09d03 PT |
1271 | { |
1272 | struct seq_file *seq = file->private_data; | |
1273 | struct ll_sb_info *sbi = seq->private; | |
1274 | struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; | |
1275 | int i; | |
1276 | int value = 1, rc = 0; | |
1277 | ||
a1e7e2d4 OD |
1278 | if (len == 0) |
1279 | return -EINVAL; | |
1280 | ||
d7e09d03 | 1281 | rc = lprocfs_write_helper(buf, len, &value); |
a1e7e2d4 OD |
1282 | if (rc < 0 && len < 16) { |
1283 | char kernbuf[16]; | |
1284 | ||
1285 | if (copy_from_user(kernbuf, buf, len)) | |
1286 | return -EFAULT; | |
1287 | kernbuf[len] = 0; | |
1288 | ||
1289 | if (kernbuf[len - 1] == '\n') | |
1290 | kernbuf[len - 1] = 0; | |
1291 | ||
1292 | if (strcmp(kernbuf, "disabled") == 0 || | |
1293 | strcmp(kernbuf, "Disabled") == 0) | |
1294 | value = 0; | |
1295 | } | |
d7e09d03 PT |
1296 | |
1297 | if (value == 0) | |
1298 | sbi->ll_rw_stats_on = 0; | |
1299 | else | |
1300 | sbi->ll_rw_stats_on = 1; | |
a1e7e2d4 | 1301 | |
d7e09d03 PT |
1302 | spin_lock(&sbi->ll_pp_extent_lock); |
1303 | for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) { | |
1304 | io_extents->pp_extents[i].pid = 0; | |
1305 | lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist); | |
1306 | lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist); | |
1307 | } | |
1308 | spin_unlock(&sbi->ll_pp_extent_lock); | |
1309 | ||
1310 | return len; | |
1311 | } | |
d7e09d03 PT |
1312 | LPROC_SEQ_FOPS(ll_rw_extents_stats); |
1313 | ||
1314 | void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid, | |
1315 | struct ll_file_data *file, loff_t pos, | |
1316 | size_t count, int rw) | |
1317 | { | |
1318 | int i, cur = -1; | |
1319 | struct ll_rw_process_info *process; | |
1320 | struct ll_rw_process_info *offset; | |
1321 | int *off_count = &sbi->ll_rw_offset_entry_count; | |
1322 | int *process_count = &sbi->ll_offset_process_count; | |
1323 | struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; | |
1324 | ||
a58a38ac | 1325 | if (!sbi->ll_rw_stats_on) |
d7e09d03 PT |
1326 | return; |
1327 | process = sbi->ll_rw_process_info; | |
1328 | offset = sbi->ll_rw_offset_info; | |
1329 | ||
1330 | spin_lock(&sbi->ll_pp_extent_lock); | |
1331 | /* Extent statistics */ | |
a58a38ac GD |
1332 | for (i = 0; i < LL_PROCESS_HIST_MAX; i++) { |
1333 | if (io_extents->pp_extents[i].pid == pid) { | |
d7e09d03 PT |
1334 | cur = i; |
1335 | break; | |
1336 | } | |
1337 | } | |
1338 | ||
1339 | if (cur == -1) { | |
1340 | /* new process */ | |
1341 | sbi->ll_extent_process_count = | |
1342 | (sbi->ll_extent_process_count + 1) % LL_PROCESS_HIST_MAX; | |
1343 | cur = sbi->ll_extent_process_count; | |
1344 | io_extents->pp_extents[cur].pid = pid; | |
1345 | lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_r_hist); | |
1346 | lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_w_hist); | |
1347 | } | |
1348 | ||
1349 | for(i = 0; (count >= (1 << LL_HIST_START << i)) && | |
1350 | (i < (LL_HIST_MAX - 1)); i++); | |
1351 | if (rw == 0) { | |
1352 | io_extents->pp_extents[cur].pp_r_hist.oh_buckets[i]++; | |
1353 | io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_r_hist.oh_buckets[i]++; | |
1354 | } else { | |
1355 | io_extents->pp_extents[cur].pp_w_hist.oh_buckets[i]++; | |
1356 | io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_w_hist.oh_buckets[i]++; | |
1357 | } | |
1358 | spin_unlock(&sbi->ll_pp_extent_lock); | |
1359 | ||
1360 | spin_lock(&sbi->ll_process_lock); | |
1361 | /* Offset statistics */ | |
1362 | for (i = 0; i < LL_PROCESS_HIST_MAX; i++) { | |
1363 | if (process[i].rw_pid == pid) { | |
1364 | if (process[i].rw_last_file != file) { | |
1365 | process[i].rw_range_start = pos; | |
1366 | process[i].rw_last_file_pos = pos + count; | |
1367 | process[i].rw_smallest_extent = count; | |
1368 | process[i].rw_largest_extent = count; | |
1369 | process[i].rw_offset = 0; | |
1370 | process[i].rw_last_file = file; | |
1371 | spin_unlock(&sbi->ll_process_lock); | |
1372 | return; | |
1373 | } | |
1374 | if (process[i].rw_last_file_pos != pos) { | |
1375 | *off_count = | |
1376 | (*off_count + 1) % LL_OFFSET_HIST_MAX; | |
1377 | offset[*off_count].rw_op = process[i].rw_op; | |
1378 | offset[*off_count].rw_pid = pid; | |
1379 | offset[*off_count].rw_range_start = | |
1380 | process[i].rw_range_start; | |
1381 | offset[*off_count].rw_range_end = | |
1382 | process[i].rw_last_file_pos; | |
1383 | offset[*off_count].rw_smallest_extent = | |
1384 | process[i].rw_smallest_extent; | |
1385 | offset[*off_count].rw_largest_extent = | |
1386 | process[i].rw_largest_extent; | |
1387 | offset[*off_count].rw_offset = | |
1388 | process[i].rw_offset; | |
1389 | process[i].rw_op = rw; | |
1390 | process[i].rw_range_start = pos; | |
1391 | process[i].rw_smallest_extent = count; | |
1392 | process[i].rw_largest_extent = count; | |
1393 | process[i].rw_offset = pos - | |
1394 | process[i].rw_last_file_pos; | |
1395 | } | |
a58a38ac | 1396 | if (process[i].rw_smallest_extent > count) |
d7e09d03 | 1397 | process[i].rw_smallest_extent = count; |
a58a38ac | 1398 | if (process[i].rw_largest_extent < count) |
d7e09d03 PT |
1399 | process[i].rw_largest_extent = count; |
1400 | process[i].rw_last_file_pos = pos + count; | |
1401 | spin_unlock(&sbi->ll_process_lock); | |
1402 | return; | |
1403 | } | |
1404 | } | |
1405 | *process_count = (*process_count + 1) % LL_PROCESS_HIST_MAX; | |
1406 | process[*process_count].rw_pid = pid; | |
1407 | process[*process_count].rw_op = rw; | |
1408 | process[*process_count].rw_range_start = pos; | |
1409 | process[*process_count].rw_last_file_pos = pos + count; | |
1410 | process[*process_count].rw_smallest_extent = count; | |
1411 | process[*process_count].rw_largest_extent = count; | |
1412 | process[*process_count].rw_offset = 0; | |
1413 | process[*process_count].rw_last_file = file; | |
1414 | spin_unlock(&sbi->ll_process_lock); | |
1415 | } | |
1416 | ||
1417 | static int ll_rw_offset_stats_seq_show(struct seq_file *seq, void *v) | |
1418 | { | |
1419 | struct timeval now; | |
1420 | struct ll_sb_info *sbi = seq->private; | |
1421 | struct ll_rw_process_info *offset = sbi->ll_rw_offset_info; | |
1422 | struct ll_rw_process_info *process = sbi->ll_rw_process_info; | |
1423 | int i; | |
1424 | ||
1425 | do_gettimeofday(&now); | |
1426 | ||
1427 | if (!sbi->ll_rw_stats_on) { | |
1428 | seq_printf(seq, "disabled\n" | |
2d00bd17 | 1429 | "write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n"); |
d7e09d03 PT |
1430 | return 0; |
1431 | } | |
1432 | spin_lock(&sbi->ll_process_lock); | |
1433 | ||
1434 | seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n", | |
996adff8 | 1435 | now.tv_sec, (unsigned long)now.tv_usec); |
d7e09d03 PT |
1436 | seq_printf(seq, "%3s %10s %14s %14s %17s %17s %14s\n", |
1437 | "R/W", "PID", "RANGE START", "RANGE END", | |
1438 | "SMALLEST EXTENT", "LARGEST EXTENT", "OFFSET"); | |
1439 | /* We stored the discontiguous offsets here; print them first */ | |
a58a38ac | 1440 | for (i = 0; i < LL_OFFSET_HIST_MAX; i++) { |
d7e09d03 | 1441 | if (offset[i].rw_pid != 0) |
4f37bc04 JH |
1442 | seq_printf(seq, |
1443 | "%3c %10d %14Lu %14Lu %17lu %17lu %14Lu", | |
1444 | offset[i].rw_op == READ ? 'R' : 'W', | |
d7e09d03 PT |
1445 | offset[i].rw_pid, |
1446 | offset[i].rw_range_start, | |
1447 | offset[i].rw_range_end, | |
1448 | (unsigned long)offset[i].rw_smallest_extent, | |
1449 | (unsigned long)offset[i].rw_largest_extent, | |
1450 | offset[i].rw_offset); | |
1451 | } | |
1452 | /* Then print the current offsets for each process */ | |
a58a38ac | 1453 | for (i = 0; i < LL_PROCESS_HIST_MAX; i++) { |
d7e09d03 | 1454 | if (process[i].rw_pid != 0) |
4f37bc04 JH |
1455 | seq_printf(seq, |
1456 | "%3c %10d %14Lu %14Lu %17lu %17lu %14Lu", | |
1457 | process[i].rw_op == READ ? 'R' : 'W', | |
d7e09d03 PT |
1458 | process[i].rw_pid, |
1459 | process[i].rw_range_start, | |
1460 | process[i].rw_last_file_pos, | |
1461 | (unsigned long)process[i].rw_smallest_extent, | |
1462 | (unsigned long)process[i].rw_largest_extent, | |
1463 | process[i].rw_offset); | |
1464 | } | |
1465 | spin_unlock(&sbi->ll_process_lock); | |
1466 | ||
1467 | return 0; | |
1468 | } | |
1469 | ||
a1e7e2d4 OD |
1470 | static ssize_t ll_rw_offset_stats_seq_write(struct file *file, |
1471 | const char __user *buf, | |
1472 | size_t len, loff_t *off) | |
d7e09d03 PT |
1473 | { |
1474 | struct seq_file *seq = file->private_data; | |
1475 | struct ll_sb_info *sbi = seq->private; | |
1476 | struct ll_rw_process_info *process_info = sbi->ll_rw_process_info; | |
1477 | struct ll_rw_process_info *offset_info = sbi->ll_rw_offset_info; | |
1478 | int value = 1, rc = 0; | |
1479 | ||
a1e7e2d4 OD |
1480 | if (len == 0) |
1481 | return -EINVAL; | |
1482 | ||
d7e09d03 PT |
1483 | rc = lprocfs_write_helper(buf, len, &value); |
1484 | ||
a1e7e2d4 OD |
1485 | if (rc < 0 && len < 16) { |
1486 | char kernbuf[16]; | |
1487 | ||
1488 | if (copy_from_user(kernbuf, buf, len)) | |
1489 | return -EFAULT; | |
1490 | kernbuf[len] = 0; | |
1491 | ||
1492 | if (kernbuf[len - 1] == '\n') | |
1493 | kernbuf[len - 1] = 0; | |
1494 | ||
1495 | if (strcmp(kernbuf, "disabled") == 0 || | |
1496 | strcmp(kernbuf, "Disabled") == 0) | |
1497 | value = 0; | |
1498 | } | |
d7e09d03 PT |
1499 | |
1500 | if (value == 0) | |
1501 | sbi->ll_rw_stats_on = 0; | |
1502 | else | |
1503 | sbi->ll_rw_stats_on = 1; | |
1504 | ||
1505 | spin_lock(&sbi->ll_process_lock); | |
1506 | sbi->ll_offset_process_count = 0; | |
1507 | sbi->ll_rw_offset_entry_count = 0; | |
1508 | memset(process_info, 0, sizeof(struct ll_rw_process_info) * | |
1509 | LL_PROCESS_HIST_MAX); | |
1510 | memset(offset_info, 0, sizeof(struct ll_rw_process_info) * | |
1511 | LL_OFFSET_HIST_MAX); | |
1512 | spin_unlock(&sbi->ll_process_lock); | |
1513 | ||
1514 | return len; | |
1515 | } | |
1516 | ||
1517 | LPROC_SEQ_FOPS(ll_rw_offset_stats); | |
1518 | ||
1519 | void lprocfs_llite_init_vars(struct lprocfs_static_vars *lvars) | |
1520 | { | |
1521 | lvars->module_vars = NULL; | |
1522 | lvars->obd_vars = lprocfs_llite_obd_vars; | |
1523 | } |