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) 2003, 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 | * lustre/llite/llite_lib.c | |
37 | * | |
38 | * Lustre Light Super operations | |
39 | */ | |
40 | ||
41 | #define DEBUG_SUBSYSTEM S_LLITE | |
42 | ||
43 | #include <linux/module.h> | |
a9c7db39 | 44 | #include <linux/statfs.h> |
d7e09d03 | 45 | #include <linux/types.h> |
d7e09d03 PT |
46 | #include <linux/mm.h> |
47 | ||
67a235f5 GKH |
48 | #include "../include/lustre_lite.h" |
49 | #include "../include/lustre_ha.h" | |
50 | #include "../include/lustre_dlm.h" | |
51 | #include "../include/lprocfs_status.h" | |
52 | #include "../include/lustre_disk.h" | |
53 | #include "../include/lustre_param.h" | |
54 | #include "../include/lustre_log.h" | |
55 | #include "../include/cl_object.h" | |
56 | #include "../include/obd_cksum.h" | |
d7e09d03 PT |
57 | #include "llite_internal.h" |
58 | ||
59 | struct kmem_cache *ll_file_data_slab; | |
2c185ffa | 60 | struct proc_dir_entry *proc_lustre_fs_root; |
d7e09d03 | 61 | |
2d95f10e JH |
62 | static LIST_HEAD(ll_super_blocks); |
63 | static DEFINE_SPINLOCK(ll_sb_lock); | |
d7e09d03 PT |
64 | |
65 | #ifndef log2 | |
66 | #define log2(n) ffz(~(n)) | |
67 | #endif | |
68 | ||
69 | static struct ll_sb_info *ll_init_sbi(void) | |
70 | { | |
71 | struct ll_sb_info *sbi = NULL; | |
72 | unsigned long pages; | |
73 | unsigned long lru_page_max; | |
74 | struct sysinfo si; | |
75 | class_uuid_t uuid; | |
76 | int i; | |
d7e09d03 | 77 | |
496a51bd | 78 | sbi = kzalloc(sizeof(*sbi), GFP_NOFS); |
d7e09d03 | 79 | if (!sbi) |
0a3bdb00 | 80 | return NULL; |
d7e09d03 PT |
81 | |
82 | spin_lock_init(&sbi->ll_lock); | |
83 | mutex_init(&sbi->ll_lco.lco_lock); | |
84 | spin_lock_init(&sbi->ll_pp_extent_lock); | |
85 | spin_lock_init(&sbi->ll_process_lock); | |
86 | sbi->ll_rw_stats_on = 0; | |
87 | ||
88 | si_meminfo(&si); | |
89 | pages = si.totalram - si.totalhigh; | |
90 | if (pages >> (20 - PAGE_CACHE_SHIFT) < 512) { | |
91 | lru_page_max = pages / 2; | |
92 | } else { | |
93 | lru_page_max = (pages / 4) * 3; | |
94 | } | |
95 | ||
c52f69c5 | 96 | /* initialize lru data */ |
d7e09d03 PT |
97 | atomic_set(&sbi->ll_cache.ccc_users, 0); |
98 | sbi->ll_cache.ccc_lru_max = lru_page_max; | |
99 | atomic_set(&sbi->ll_cache.ccc_lru_left, lru_page_max); | |
100 | spin_lock_init(&sbi->ll_cache.ccc_lru_lock); | |
101 | INIT_LIST_HEAD(&sbi->ll_cache.ccc_lru); | |
102 | ||
d7e09d03 PT |
103 | sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32, |
104 | SBI_DEFAULT_READAHEAD_MAX); | |
105 | sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file; | |
106 | sbi->ll_ra_info.ra_max_read_ahead_whole_pages = | |
107 | SBI_DEFAULT_READAHEAD_WHOLE_MAX; | |
108 | INIT_LIST_HEAD(&sbi->ll_conn_chain); | |
109 | INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list); | |
110 | ||
111 | ll_generate_random_uuid(uuid); | |
112 | class_uuid_unparse(uuid, &sbi->ll_sb_uuid); | |
113 | CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid); | |
114 | ||
115 | spin_lock(&ll_sb_lock); | |
116 | list_add_tail(&sbi->ll_list, &ll_super_blocks); | |
117 | spin_unlock(&ll_sb_lock); | |
118 | ||
119 | sbi->ll_flags |= LL_SBI_VERBOSE; | |
120 | sbi->ll_flags |= LL_SBI_CHECKSUM; | |
121 | ||
122 | sbi->ll_flags |= LL_SBI_LRU_RESIZE; | |
123 | ||
124 | for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) { | |
125 | spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. | |
126 | pp_r_hist.oh_lock); | |
127 | spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. | |
128 | pp_w_hist.oh_lock); | |
129 | } | |
130 | ||
131 | /* metadata statahead is enabled by default */ | |
132 | sbi->ll_sa_max = LL_SA_RPC_DEF; | |
133 | atomic_set(&sbi->ll_sa_total, 0); | |
134 | atomic_set(&sbi->ll_sa_wrong, 0); | |
135 | atomic_set(&sbi->ll_agl_total, 0); | |
136 | sbi->ll_flags |= LL_SBI_AGL_ENABLED; | |
137 | ||
0a3bdb00 | 138 | return sbi; |
d7e09d03 PT |
139 | } |
140 | ||
2d95f10e | 141 | static void ll_free_sbi(struct super_block *sb) |
d7e09d03 PT |
142 | { |
143 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
d7e09d03 PT |
144 | |
145 | if (sbi != NULL) { | |
146 | spin_lock(&ll_sb_lock); | |
147 | list_del(&sbi->ll_list); | |
148 | spin_unlock(&ll_sb_lock); | |
149 | OBD_FREE(sbi, sizeof(*sbi)); | |
150 | } | |
d7e09d03 PT |
151 | } |
152 | ||
d7e09d03 PT |
153 | static int client_common_fill_super(struct super_block *sb, char *md, char *dt, |
154 | struct vfsmount *mnt) | |
155 | { | |
ea7893bb | 156 | struct inode *root = NULL; |
d7e09d03 PT |
157 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
158 | struct obd_device *obd; | |
159 | struct obd_capa *oc = NULL; | |
160 | struct obd_statfs *osfs = NULL; | |
161 | struct ptlrpc_request *request = NULL; | |
162 | struct obd_connect_data *data = NULL; | |
163 | struct obd_uuid *uuid; | |
164 | struct md_op_data *op_data; | |
165 | struct lustre_md lmd; | |
21aef7d9 | 166 | u64 valid; |
d7e09d03 | 167 | int size, err, checksum; |
d7e09d03 PT |
168 | |
169 | obd = class_name2obd(md); | |
170 | if (!obd) { | |
171 | CERROR("MD %s: not setup or attached\n", md); | |
0a3bdb00 | 172 | return -EINVAL; |
d7e09d03 PT |
173 | } |
174 | ||
496a51bd JL |
175 | data = kzalloc(sizeof(*data), GFP_NOFS); |
176 | if (!data) | |
0a3bdb00 | 177 | return -ENOMEM; |
d7e09d03 | 178 | |
496a51bd JL |
179 | osfs = kzalloc(sizeof(*osfs), GFP_NOFS); |
180 | if (!osfs) { | |
d7e09d03 | 181 | OBD_FREE_PTR(data); |
0a3bdb00 | 182 | return -ENOMEM; |
d7e09d03 PT |
183 | } |
184 | ||
185 | if (proc_lustre_fs_root) { | |
186 | err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb, | |
187 | dt, md); | |
188 | if (err < 0) | |
189 | CERROR("could not register mount in /proc/fs/lustre\n"); | |
190 | } | |
191 | ||
192 | /* indicate the features supported by this client */ | |
193 | data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH | | |
194 | OBD_CONNECT_ATTRFID | | |
195 | OBD_CONNECT_VERSION | OBD_CONNECT_BRW_SIZE | | |
196 | OBD_CONNECT_MDS_CAPA | OBD_CONNECT_OSS_CAPA | | |
197 | OBD_CONNECT_CANCELSET | OBD_CONNECT_FID | | |
198 | OBD_CONNECT_AT | OBD_CONNECT_LOV_V3 | | |
199 | OBD_CONNECT_RMT_CLIENT | OBD_CONNECT_VBR | | |
200 | OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH| | |
201 | OBD_CONNECT_EINPROGRESS | | |
202 | OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE | | |
7fc1f831 | 203 | OBD_CONNECT_LAYOUTLOCK | |
69342b78 AS |
204 | OBD_CONNECT_PINGLESS | |
205 | OBD_CONNECT_MAX_EASIZE | | |
63d42578 HZ |
206 | OBD_CONNECT_FLOCK_DEAD | |
207 | OBD_CONNECT_DISP_STRIPE; | |
d7e09d03 PT |
208 | |
209 | if (sbi->ll_flags & LL_SBI_SOM_PREVIEW) | |
210 | data->ocd_connect_flags |= OBD_CONNECT_SOM; | |
211 | ||
212 | if (sbi->ll_flags & LL_SBI_LRU_RESIZE) | |
213 | data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE; | |
214 | #ifdef CONFIG_FS_POSIX_ACL | |
215 | data->ocd_connect_flags |= OBD_CONNECT_ACL | OBD_CONNECT_UMASK; | |
216 | #endif | |
217 | ||
218 | if (OBD_FAIL_CHECK(OBD_FAIL_MDC_LIGHTWEIGHT)) | |
219 | /* flag mdc connection as lightweight, only used for test | |
220 | * purpose, use with care */ | |
221 | data->ocd_connect_flags |= OBD_CONNECT_LIGHTWEIGHT; | |
222 | ||
223 | data->ocd_ibits_known = MDS_INODELOCK_FULL; | |
224 | data->ocd_version = LUSTRE_VERSION_CODE; | |
225 | ||
226 | if (sb->s_flags & MS_RDONLY) | |
227 | data->ocd_connect_flags |= OBD_CONNECT_RDONLY; | |
228 | if (sbi->ll_flags & LL_SBI_USER_XATTR) | |
229 | data->ocd_connect_flags |= OBD_CONNECT_XATTR; | |
230 | ||
231 | #ifdef HAVE_MS_FLOCK_LOCK | |
232 | /* force vfs to use lustre handler for flock() calls - bug 10743 */ | |
233 | sb->s_flags |= MS_FLOCK_LOCK; | |
234 | #endif | |
235 | #ifdef MS_HAS_NEW_AOPS | |
236 | sb->s_flags |= MS_HAS_NEW_AOPS; | |
237 | #endif | |
238 | ||
239 | if (sbi->ll_flags & LL_SBI_FLOCK) | |
240 | sbi->ll_fop = &ll_file_operations_flock; | |
241 | else if (sbi->ll_flags & LL_SBI_LOCALFLOCK) | |
242 | sbi->ll_fop = &ll_file_operations; | |
243 | else | |
244 | sbi->ll_fop = &ll_file_operations_noflock; | |
245 | ||
246 | /* real client */ | |
247 | data->ocd_connect_flags |= OBD_CONNECT_REAL; | |
248 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) | |
249 | data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE; | |
250 | ||
251 | data->ocd_brw_size = MD_MAX_BRW_SIZE; | |
252 | ||
e6768831 TJ |
253 | err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, |
254 | data, NULL); | |
d7e09d03 | 255 | if (err == -EBUSY) { |
2d00bd17 JP |
256 | LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n", |
257 | md); | |
34e1f2bb | 258 | goto out; |
d7e09d03 PT |
259 | } else if (err) { |
260 | CERROR("cannot connect to %s: rc = %d\n", md, err); | |
34e1f2bb | 261 | goto out; |
d7e09d03 PT |
262 | } |
263 | ||
264 | sbi->ll_md_exp->exp_connect_data = *data; | |
265 | ||
266 | err = obd_fid_init(sbi->ll_md_exp->exp_obd, sbi->ll_md_exp, | |
267 | LUSTRE_SEQ_METADATA); | |
268 | if (err) { | |
2d00bd17 JP |
269 | CERROR("%s: Can't init metadata layer FID infrastructure, rc = %d\n", |
270 | sbi->ll_md_exp->exp_obd->obd_name, err); | |
34e1f2bb | 271 | goto out_md; |
d7e09d03 PT |
272 | } |
273 | ||
274 | /* For mount, we only need fs info from MDT0, and also in DNE, it | |
275 | * can make sure the client can be mounted as long as MDT0 is | |
d0a0acc3 | 276 | * available */ |
d7e09d03 PT |
277 | err = obd_statfs(NULL, sbi->ll_md_exp, osfs, |
278 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
279 | OBD_STATFS_FOR_MDT0); | |
280 | if (err) | |
34e1f2bb | 281 | goto out_md_fid; |
d7e09d03 PT |
282 | |
283 | /* This needs to be after statfs to ensure connect has finished. | |
284 | * Note that "data" does NOT contain the valid connect reply. | |
285 | * If connecting to a 1.8 server there will be no LMV device, so | |
286 | * we can access the MDC export directly and exp_connect_flags will | |
287 | * be non-zero, but if accessing an upgraded 2.1 server it will | |
288 | * have the correct flags filled in. | |
289 | * XXX: fill in the LMV exp_connect_flags from MDC(s). */ | |
290 | valid = exp_connect_flags(sbi->ll_md_exp) & CLIENT_CONNECT_MDT_REQD; | |
291 | if (exp_connect_flags(sbi->ll_md_exp) != 0 && | |
292 | valid != CLIENT_CONNECT_MDT_REQD) { | |
293 | char *buf; | |
294 | ||
496a51bd | 295 | buf = kzalloc(PAGE_CACHE_SIZE, GFP_KERNEL); |
d7e09d03 PT |
296 | obd_connect_flags2str(buf, PAGE_CACHE_SIZE, |
297 | valid ^ CLIENT_CONNECT_MDT_REQD, ","); | |
2d00bd17 | 298 | LCONSOLE_ERROR_MSG(0x170, "Server %s does not support feature(s) needed for correct operation of this client (%s). Please upgrade server or downgrade client.\n", |
d7e09d03 PT |
299 | sbi->ll_md_exp->exp_obd->obd_name, buf); |
300 | OBD_FREE(buf, PAGE_CACHE_SIZE); | |
34e1f2bb JL |
301 | err = -EPROTO; |
302 | goto out_md_fid; | |
d7e09d03 PT |
303 | } |
304 | ||
305 | size = sizeof(*data); | |
306 | err = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_CONN_DATA), | |
307 | KEY_CONN_DATA, &size, data, NULL); | |
308 | if (err) { | |
309 | CERROR("%s: Get connect data failed: rc = %d\n", | |
310 | sbi->ll_md_exp->exp_obd->obd_name, err); | |
34e1f2bb | 311 | goto out_md_fid; |
d7e09d03 PT |
312 | } |
313 | ||
314 | LASSERT(osfs->os_bsize); | |
315 | sb->s_blocksize = osfs->os_bsize; | |
316 | sb->s_blocksize_bits = log2(osfs->os_bsize); | |
317 | sb->s_magic = LL_SUPER_MAGIC; | |
318 | sb->s_maxbytes = MAX_LFS_FILESIZE; | |
319 | sbi->ll_namelen = osfs->os_namelen; | |
320 | sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK; | |
321 | ||
322 | if ((sbi->ll_flags & LL_SBI_USER_XATTR) && | |
323 | !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) { | |
2d00bd17 | 324 | LCONSOLE_INFO("Disabling user_xattr feature because it is not supported on the server\n"); |
d7e09d03 PT |
325 | sbi->ll_flags &= ~LL_SBI_USER_XATTR; |
326 | } | |
327 | ||
328 | if (data->ocd_connect_flags & OBD_CONNECT_ACL) { | |
329 | #ifdef MS_POSIXACL | |
330 | sb->s_flags |= MS_POSIXACL; | |
331 | #endif | |
332 | sbi->ll_flags |= LL_SBI_ACL; | |
333 | } else { | |
334 | LCONSOLE_INFO("client wants to enable acl, but mdt not!\n"); | |
335 | #ifdef MS_POSIXACL | |
336 | sb->s_flags &= ~MS_POSIXACL; | |
337 | #endif | |
338 | sbi->ll_flags &= ~LL_SBI_ACL; | |
339 | } | |
340 | ||
341 | if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) { | |
342 | if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) { | |
343 | sbi->ll_flags |= LL_SBI_RMT_CLIENT; | |
344 | LCONSOLE_INFO("client is set as remote by default.\n"); | |
345 | } | |
346 | } else { | |
347 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
348 | sbi->ll_flags &= ~LL_SBI_RMT_CLIENT; | |
2d00bd17 | 349 | LCONSOLE_INFO("client claims to be remote, but server rejected, forced to be local.\n"); |
d7e09d03 PT |
350 | } |
351 | } | |
352 | ||
353 | if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) { | |
354 | LCONSOLE_INFO("client enabled MDS capability!\n"); | |
355 | sbi->ll_flags |= LL_SBI_MDS_CAPA; | |
356 | } | |
357 | ||
358 | if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) { | |
359 | LCONSOLE_INFO("client enabled OSS capability!\n"); | |
360 | sbi->ll_flags |= LL_SBI_OSS_CAPA; | |
361 | } | |
362 | ||
363 | if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH) | |
364 | sbi->ll_flags |= LL_SBI_64BIT_HASH; | |
365 | ||
366 | if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) | |
367 | sbi->ll_md_brw_size = data->ocd_brw_size; | |
368 | else | |
369 | sbi->ll_md_brw_size = PAGE_CACHE_SIZE; | |
370 | ||
371 | if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK) { | |
372 | LCONSOLE_INFO("Layout lock feature supported.\n"); | |
373 | sbi->ll_flags |= LL_SBI_LAYOUT_LOCK; | |
374 | } | |
375 | ||
7fc1f831 AP |
376 | if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) { |
377 | if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) { | |
378 | LCONSOLE_INFO( | |
379 | "%s: disabling xattr cache due to unknown maximum xattr size.\n", | |
380 | dt); | |
381 | } else { | |
382 | sbi->ll_flags |= LL_SBI_XATTR_CACHE; | |
383 | sbi->ll_xattr_cache_enabled = 1; | |
384 | } | |
385 | } | |
386 | ||
d7e09d03 PT |
387 | obd = class_name2obd(dt); |
388 | if (!obd) { | |
389 | CERROR("DT %s: not setup or attached\n", dt); | |
34e1f2bb JL |
390 | err = -ENODEV; |
391 | goto out_md_fid; | |
d7e09d03 PT |
392 | } |
393 | ||
394 | data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION | | |
395 | OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE | | |
396 | OBD_CONNECT_CANCELSET | OBD_CONNECT_FID | | |
397 | OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK| | |
398 | OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT | | |
399 | OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR| | |
400 | OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH | | |
401 | OBD_CONNECT_MAXBYTES | | |
402 | OBD_CONNECT_EINPROGRESS | | |
403 | OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE | | |
404 | OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_PINGLESS; | |
405 | ||
406 | if (sbi->ll_flags & LL_SBI_SOM_PREVIEW) | |
407 | data->ocd_connect_flags |= OBD_CONNECT_SOM; | |
408 | ||
409 | if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) { | |
410 | /* OBD_CONNECT_CKSUM should always be set, even if checksums are | |
411 | * disabled by default, because it can still be enabled on the | |
412 | * fly via /proc. As a consequence, we still need to come to an | |
413 | * agreement on the supported algorithms at connect time */ | |
414 | data->ocd_connect_flags |= OBD_CONNECT_CKSUM; | |
415 | ||
416 | if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY)) | |
417 | data->ocd_cksum_types = OBD_CKSUM_ADLER; | |
418 | else | |
419 | data->ocd_cksum_types = cksum_types_supported_client(); | |
420 | } | |
421 | ||
422 | data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE; | |
423 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) | |
424 | data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE; | |
425 | ||
2d00bd17 JP |
426 | CDEBUG(D_RPCTRACE, "ocd_connect_flags: %#llx ocd_version: %d ocd_grant: %d\n", |
427 | data->ocd_connect_flags, | |
d7e09d03 PT |
428 | data->ocd_version, data->ocd_grant); |
429 | ||
430 | obd->obd_upcall.onu_owner = &sbi->ll_lco; | |
431 | obd->obd_upcall.onu_upcall = cl_ocd_update; | |
432 | ||
433 | data->ocd_brw_size = DT_MAX_BRW_SIZE; | |
434 | ||
435 | err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, | |
436 | NULL); | |
437 | if (err == -EBUSY) { | |
2d00bd17 JP |
438 | LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n", |
439 | dt); | |
34e1f2bb | 440 | goto out_md; |
d7e09d03 PT |
441 | } else if (err) { |
442 | CERROR("%s: Cannot connect to %s: rc = %d\n", | |
443 | sbi->ll_dt_exp->exp_obd->obd_name, dt, err); | |
34e1f2bb | 444 | goto out_md; |
d7e09d03 PT |
445 | } |
446 | ||
447 | sbi->ll_dt_exp->exp_connect_data = *data; | |
448 | ||
449 | err = obd_fid_init(sbi->ll_dt_exp->exp_obd, sbi->ll_dt_exp, | |
450 | LUSTRE_SEQ_METADATA); | |
451 | if (err) { | |
2d00bd17 JP |
452 | CERROR("%s: Can't init data layer FID infrastructure, rc = %d\n", |
453 | sbi->ll_dt_exp->exp_obd->obd_name, err); | |
34e1f2bb | 454 | goto out_dt; |
d7e09d03 PT |
455 | } |
456 | ||
457 | mutex_lock(&sbi->ll_lco.lco_lock); | |
458 | sbi->ll_lco.lco_flags = data->ocd_connect_flags; | |
459 | sbi->ll_lco.lco_md_exp = sbi->ll_md_exp; | |
460 | sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp; | |
461 | mutex_unlock(&sbi->ll_lco.lco_lock); | |
462 | ||
463 | fid_zero(&sbi->ll_root_fid); | |
464 | err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc); | |
465 | if (err) { | |
466 | CERROR("cannot mds_connect: rc = %d\n", err); | |
34e1f2bb | 467 | goto out_lock_cn_cb; |
d7e09d03 PT |
468 | } |
469 | if (!fid_is_sane(&sbi->ll_root_fid)) { | |
470 | CERROR("%s: Invalid root fid "DFID" during mount\n", | |
471 | sbi->ll_md_exp->exp_obd->obd_name, | |
472 | PFID(&sbi->ll_root_fid)); | |
34e1f2bb JL |
473 | err = -EINVAL; |
474 | goto out_lock_cn_cb; | |
d7e09d03 PT |
475 | } |
476 | CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid)); | |
477 | ||
478 | sb->s_op = &lustre_super_operations; | |
479 | #if THREAD_SIZE >= 8192 /*b=17630*/ | |
480 | sb->s_export_op = &lustre_export_operations; | |
481 | #endif | |
482 | ||
483 | /* make root inode | |
484 | * XXX: move this to after cbd setup? */ | |
485 | valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA; | |
486 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) | |
487 | valid |= OBD_MD_FLRMTPERM; | |
488 | else if (sbi->ll_flags & LL_SBI_ACL) | |
489 | valid |= OBD_MD_FLACL; | |
490 | ||
496a51bd JL |
491 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
492 | if (!op_data) { | |
34e1f2bb JL |
493 | err = -ENOMEM; |
494 | goto out_lock_cn_cb; | |
495 | } | |
d7e09d03 PT |
496 | |
497 | op_data->op_fid1 = sbi->ll_root_fid; | |
498 | op_data->op_mode = 0; | |
499 | op_data->op_capa1 = oc; | |
500 | op_data->op_valid = valid; | |
501 | ||
502 | err = md_getattr(sbi->ll_md_exp, op_data, &request); | |
503 | if (oc) | |
504 | capa_put(oc); | |
505 | OBD_FREE_PTR(op_data); | |
506 | if (err) { | |
507 | CERROR("%s: md_getattr failed for root: rc = %d\n", | |
508 | sbi->ll_md_exp->exp_obd->obd_name, err); | |
34e1f2bb | 509 | goto out_lock_cn_cb; |
d7e09d03 PT |
510 | } |
511 | ||
512 | err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp, | |
513 | sbi->ll_md_exp, &lmd); | |
514 | if (err) { | |
515 | CERROR("failed to understand root inode md: rc = %d\n", err); | |
516 | ptlrpc_req_finished(request); | |
34e1f2bb | 517 | goto out_lock_cn_cb; |
d7e09d03 PT |
518 | } |
519 | ||
520 | LASSERT(fid_is_sane(&sbi->ll_root_fid)); | |
521 | root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid, | |
c1e2699d | 522 | sbi->ll_flags & LL_SBI_32BIT_API), |
d7e09d03 PT |
523 | &lmd); |
524 | md_free_lustre_md(sbi->ll_md_exp, &lmd); | |
525 | ptlrpc_req_finished(request); | |
526 | ||
527 | if (root == NULL || IS_ERR(root)) { | |
528 | if (lmd.lsm) | |
529 | obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm); | |
530 | #ifdef CONFIG_FS_POSIX_ACL | |
531 | if (lmd.posix_acl) { | |
532 | posix_acl_release(lmd.posix_acl); | |
533 | lmd.posix_acl = NULL; | |
534 | } | |
535 | #endif | |
536 | err = IS_ERR(root) ? PTR_ERR(root) : -EBADF; | |
537 | root = NULL; | |
538 | CERROR("lustre_lite: bad iget4 for root\n"); | |
34e1f2bb | 539 | goto out_root; |
d7e09d03 PT |
540 | } |
541 | ||
542 | err = ll_close_thread_start(&sbi->ll_lcq); | |
543 | if (err) { | |
544 | CERROR("cannot start close thread: rc %d\n", err); | |
34e1f2bb | 545 | goto out_root; |
d7e09d03 PT |
546 | } |
547 | ||
548 | #ifdef CONFIG_FS_POSIX_ACL | |
549 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
550 | rct_init(&sbi->ll_rct); | |
551 | et_init(&sbi->ll_et); | |
552 | } | |
553 | #endif | |
554 | ||
555 | checksum = sbi->ll_flags & LL_SBI_CHECKSUM; | |
556 | err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM), | |
557 | KEY_CHECKSUM, sizeof(checksum), &checksum, | |
558 | NULL); | |
559 | cl_sb_init(sb); | |
560 | ||
561 | err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CACHE_SET), | |
562 | KEY_CACHE_SET, sizeof(sbi->ll_cache), | |
563 | &sbi->ll_cache, NULL); | |
564 | ||
565 | sb->s_root = d_make_root(root); | |
566 | if (sb->s_root == NULL) { | |
567 | CERROR("%s: can't make root dentry\n", | |
568 | ll_get_fsname(sb, NULL, 0)); | |
34e1f2bb | 569 | err = -ENOMEM; |
caf382fe | 570 | goto out_lock_cn_cb; |
d7e09d03 PT |
571 | } |
572 | ||
d7e09d03 PT |
573 | sbi->ll_sdev_orig = sb->s_dev; |
574 | ||
575 | /* We set sb->s_dev equal on all lustre clients in order to support | |
576 | * NFS export clustering. NFSD requires that the FSID be the same | |
577 | * on all clients. */ | |
578 | /* s_dev is also used in lt_compare() to compare two fs, but that is | |
579 | * only a node-local comparison. */ | |
580 | uuid = obd_get_uuid(sbi->ll_md_exp); | |
bd994071 | 581 | if (uuid != NULL) { |
d7e09d03 | 582 | sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid)); |
bd994071 FY |
583 | get_uuid2fsid(uuid->uuid, strlen(uuid->uuid), &sbi->ll_fsid); |
584 | } | |
d7e09d03 PT |
585 | |
586 | if (data != NULL) | |
587 | OBD_FREE_PTR(data); | |
588 | if (osfs != NULL) | |
589 | OBD_FREE_PTR(osfs); | |
590 | ||
0a3bdb00 | 591 | return err; |
d7e09d03 | 592 | out_root: |
ddafd514 | 593 | iput(root); |
d7e09d03 PT |
594 | out_lock_cn_cb: |
595 | obd_fid_fini(sbi->ll_dt_exp->exp_obd); | |
596 | out_dt: | |
597 | obd_disconnect(sbi->ll_dt_exp); | |
598 | sbi->ll_dt_exp = NULL; | |
599 | /* Make sure all OScs are gone, since cl_cache is accessing sbi. */ | |
600 | obd_zombie_barrier(); | |
601 | out_md_fid: | |
602 | obd_fid_fini(sbi->ll_md_exp->exp_obd); | |
603 | out_md: | |
604 | obd_disconnect(sbi->ll_md_exp); | |
605 | sbi->ll_md_exp = NULL; | |
606 | out: | |
607 | if (data != NULL) | |
608 | OBD_FREE_PTR(data); | |
609 | if (osfs != NULL) | |
610 | OBD_FREE_PTR(osfs); | |
611 | lprocfs_unregister_mountpoint(sbi); | |
612 | return err; | |
613 | } | |
614 | ||
615 | int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize) | |
616 | { | |
617 | int size, rc; | |
618 | ||
619 | *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL); | |
620 | size = sizeof(int); | |
621 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE), | |
622 | KEY_MAX_EASIZE, &size, lmmsize, NULL); | |
623 | if (rc) | |
624 | CERROR("Get max mdsize error rc %d \n", rc); | |
625 | ||
0a3bdb00 | 626 | return rc; |
44779340 BB |
627 | } |
628 | ||
629 | int ll_get_default_mdsize(struct ll_sb_info *sbi, int *lmmsize) | |
630 | { | |
631 | int size, rc; | |
632 | ||
633 | size = sizeof(int); | |
634 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_DEFAULT_EASIZE), | |
635 | KEY_DEFAULT_EASIZE, &size, lmmsize, NULL); | |
636 | if (rc) | |
637 | CERROR("Get default mdsize error rc %d\n", rc); | |
638 | ||
639 | return rc; | |
640 | } | |
641 | ||
642 | int ll_get_max_cookiesize(struct ll_sb_info *sbi, int *lmmsize) | |
643 | { | |
644 | int size, rc; | |
645 | ||
646 | size = sizeof(int); | |
647 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_COOKIESIZE), | |
648 | KEY_MAX_COOKIESIZE, &size, lmmsize, NULL); | |
649 | if (rc) | |
650 | CERROR("Get max cookiesize error rc %d\n", rc); | |
651 | ||
652 | return rc; | |
653 | } | |
654 | ||
655 | int ll_get_default_cookiesize(struct ll_sb_info *sbi, int *lmmsize) | |
656 | { | |
657 | int size, rc; | |
658 | ||
659 | size = sizeof(int); | |
660 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_DEFAULT_COOKIESIZE), | |
661 | KEY_DEFAULT_COOKIESIZE, &size, lmmsize, NULL); | |
662 | if (rc) | |
663 | CERROR("Get default cookiesize error rc %d\n", rc); | |
664 | ||
665 | return rc; | |
d7e09d03 PT |
666 | } |
667 | ||
2d95f10e | 668 | static void client_common_put_super(struct super_block *sb) |
d7e09d03 PT |
669 | { |
670 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
d7e09d03 PT |
671 | |
672 | #ifdef CONFIG_FS_POSIX_ACL | |
673 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
674 | et_fini(&sbi->ll_et); | |
675 | rct_fini(&sbi->ll_rct); | |
676 | } | |
677 | #endif | |
678 | ||
679 | ll_close_thread_shutdown(sbi->ll_lcq); | |
680 | ||
681 | cl_sb_fini(sb); | |
682 | ||
683 | list_del(&sbi->ll_conn_chain); | |
684 | ||
685 | obd_fid_fini(sbi->ll_dt_exp->exp_obd); | |
686 | obd_disconnect(sbi->ll_dt_exp); | |
687 | sbi->ll_dt_exp = NULL; | |
688 | /* wait till all OSCs are gone, since cl_cache is accessing sbi. | |
689 | * see LU-2543. */ | |
690 | obd_zombie_barrier(); | |
691 | ||
692 | lprocfs_unregister_mountpoint(sbi); | |
693 | ||
694 | obd_fid_fini(sbi->ll_md_exp->exp_obd); | |
695 | obd_disconnect(sbi->ll_md_exp); | |
696 | sbi->ll_md_exp = NULL; | |
d7e09d03 PT |
697 | } |
698 | ||
699 | void ll_kill_super(struct super_block *sb) | |
700 | { | |
701 | struct ll_sb_info *sbi; | |
702 | ||
d7e09d03 PT |
703 | /* not init sb ?*/ |
704 | if (!(sb->s_flags & MS_ACTIVE)) | |
705 | return; | |
706 | ||
707 | sbi = ll_s2sbi(sb); | |
e6768831 TJ |
708 | /* we need to restore s_dev from changed for clustered NFS before |
709 | * put_super because new kernels have cached s_dev and change sb->s_dev | |
710 | * in put_super not affected real removing devices */ | |
65fb55d1 | 711 | if (sbi) { |
d7e09d03 | 712 | sb->s_dev = sbi->ll_sdev_orig; |
65fb55d1 NY |
713 | sbi->ll_umounting = 1; |
714 | } | |
d7e09d03 PT |
715 | } |
716 | ||
d7e09d03 PT |
717 | static inline int ll_set_opt(const char *opt, char *data, int fl) |
718 | { | |
719 | if (strncmp(opt, data, strlen(opt)) != 0) | |
fbe7c6c7 | 720 | return 0; |
d7e09d03 | 721 | else |
fbe7c6c7 | 722 | return fl; |
d7e09d03 PT |
723 | } |
724 | ||
725 | /* non-client-specific mount options are parsed in lmd_parse */ | |
726 | static int ll_options(char *options, int *flags) | |
727 | { | |
728 | int tmp; | |
729 | char *s1 = options, *s2; | |
d7e09d03 PT |
730 | |
731 | if (!options) | |
0a3bdb00 | 732 | return 0; |
d7e09d03 PT |
733 | |
734 | CDEBUG(D_CONFIG, "Parsing opts %s\n", options); | |
735 | ||
736 | while (*s1) { | |
737 | CDEBUG(D_SUPER, "next opt=%s\n", s1); | |
738 | tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK); | |
739 | if (tmp) { | |
740 | *flags |= tmp; | |
741 | goto next; | |
742 | } | |
743 | tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK); | |
744 | if (tmp) { | |
745 | *flags |= tmp; | |
746 | goto next; | |
747 | } | |
748 | tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK); | |
749 | if (tmp) { | |
750 | *flags |= tmp; | |
751 | goto next; | |
752 | } | |
753 | tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK); | |
754 | if (tmp) { | |
755 | *flags &= ~tmp; | |
756 | goto next; | |
757 | } | |
758 | tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR); | |
759 | if (tmp) { | |
760 | *flags |= tmp; | |
761 | goto next; | |
762 | } | |
763 | tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR); | |
764 | if (tmp) { | |
765 | *flags &= ~tmp; | |
766 | goto next; | |
767 | } | |
d7e09d03 PT |
768 | tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT); |
769 | if (tmp) { | |
770 | *flags |= tmp; | |
771 | goto next; | |
772 | } | |
773 | tmp = ll_set_opt("user_fid2path", s1, LL_SBI_USER_FID2PATH); | |
774 | if (tmp) { | |
775 | *flags |= tmp; | |
776 | goto next; | |
777 | } | |
778 | tmp = ll_set_opt("nouser_fid2path", s1, LL_SBI_USER_FID2PATH); | |
779 | if (tmp) { | |
780 | *flags &= ~tmp; | |
781 | goto next; | |
782 | } | |
783 | ||
784 | tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM); | |
785 | if (tmp) { | |
786 | *flags |= tmp; | |
787 | goto next; | |
788 | } | |
789 | tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM); | |
790 | if (tmp) { | |
791 | *flags &= ~tmp; | |
792 | goto next; | |
793 | } | |
794 | tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE); | |
795 | if (tmp) { | |
796 | *flags |= tmp; | |
797 | goto next; | |
798 | } | |
799 | tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE); | |
800 | if (tmp) { | |
801 | *flags &= ~tmp; | |
802 | goto next; | |
803 | } | |
804 | tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS); | |
805 | if (tmp) { | |
806 | *flags |= tmp; | |
807 | goto next; | |
808 | } | |
809 | tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS); | |
810 | if (tmp) { | |
811 | *flags &= ~tmp; | |
812 | goto next; | |
813 | } | |
814 | tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW); | |
815 | if (tmp) { | |
816 | *flags |= tmp; | |
817 | goto next; | |
818 | } | |
819 | tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API); | |
820 | if (tmp) { | |
821 | *flags |= tmp; | |
822 | goto next; | |
823 | } | |
824 | tmp = ll_set_opt("verbose", s1, LL_SBI_VERBOSE); | |
825 | if (tmp) { | |
826 | *flags |= tmp; | |
827 | goto next; | |
828 | } | |
829 | tmp = ll_set_opt("noverbose", s1, LL_SBI_VERBOSE); | |
830 | if (tmp) { | |
831 | *flags &= ~tmp; | |
832 | goto next; | |
833 | } | |
834 | LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n", | |
835 | s1); | |
0a3bdb00 | 836 | return -EINVAL; |
d7e09d03 PT |
837 | |
838 | next: | |
839 | /* Find next opt */ | |
840 | s2 = strchr(s1, ','); | |
841 | if (s2 == NULL) | |
842 | break; | |
843 | s1 = s2 + 1; | |
844 | } | |
0a3bdb00 | 845 | return 0; |
d7e09d03 PT |
846 | } |
847 | ||
848 | void ll_lli_init(struct ll_inode_info *lli) | |
849 | { | |
850 | lli->lli_inode_magic = LLI_INODE_MAGIC; | |
851 | lli->lli_flags = 0; | |
852 | lli->lli_ioepoch = 0; | |
853 | lli->lli_maxbytes = MAX_LFS_FILESIZE; | |
854 | spin_lock_init(&lli->lli_lock); | |
855 | lli->lli_posix_acl = NULL; | |
856 | lli->lli_remote_perms = NULL; | |
857 | mutex_init(&lli->lli_rmtperm_mutex); | |
858 | /* Do not set lli_fid, it has been initialized already. */ | |
859 | fid_zero(&lli->lli_pfid); | |
860 | INIT_LIST_HEAD(&lli->lli_close_list); | |
861 | INIT_LIST_HEAD(&lli->lli_oss_capas); | |
862 | atomic_set(&lli->lli_open_count, 0); | |
863 | lli->lli_mds_capa = NULL; | |
864 | lli->lli_rmtperm_time = 0; | |
865 | lli->lli_pending_och = NULL; | |
866 | lli->lli_mds_read_och = NULL; | |
867 | lli->lli_mds_write_och = NULL; | |
868 | lli->lli_mds_exec_och = NULL; | |
869 | lli->lli_open_fd_read_count = 0; | |
870 | lli->lli_open_fd_write_count = 0; | |
871 | lli->lli_open_fd_exec_count = 0; | |
872 | mutex_init(&lli->lli_och_mutex); | |
873 | spin_lock_init(&lli->lli_agl_lock); | |
874 | lli->lli_has_smd = false; | |
09aed8a5 JX |
875 | spin_lock_init(&lli->lli_layout_lock); |
876 | ll_layout_version_set(lli, LL_LAYOUT_GEN_NONE); | |
d7e09d03 PT |
877 | lli->lli_clob = NULL; |
878 | ||
7fc1f831 AP |
879 | init_rwsem(&lli->lli_xattrs_list_rwsem); |
880 | mutex_init(&lli->lli_xattrs_enq_lock); | |
881 | ||
d7e09d03 PT |
882 | LASSERT(lli->lli_vfs_inode.i_mode != 0); |
883 | if (S_ISDIR(lli->lli_vfs_inode.i_mode)) { | |
884 | mutex_init(&lli->lli_readdir_mutex); | |
885 | lli->lli_opendir_key = NULL; | |
886 | lli->lli_sai = NULL; | |
d7e09d03 PT |
887 | spin_lock_init(&lli->lli_sa_lock); |
888 | lli->lli_opendir_pid = 0; | |
889 | } else { | |
47a57bde | 890 | mutex_init(&lli->lli_size_mutex); |
d7e09d03 PT |
891 | lli->lli_symlink_name = NULL; |
892 | init_rwsem(&lli->lli_trunc_sem); | |
893 | mutex_init(&lli->lli_write_mutex); | |
894 | init_rwsem(&lli->lli_glimpse_sem); | |
895 | lli->lli_glimpse_time = 0; | |
896 | INIT_LIST_HEAD(&lli->lli_agl_list); | |
897 | lli->lli_agl_index = 0; | |
898 | lli->lli_async_rc = 0; | |
d7e09d03 PT |
899 | } |
900 | mutex_init(&lli->lli_layout_mutex); | |
901 | } | |
902 | ||
903 | static inline int ll_bdi_register(struct backing_dev_info *bdi) | |
904 | { | |
905 | static atomic_t ll_bdi_num = ATOMIC_INIT(0); | |
906 | ||
907 | bdi->name = "lustre"; | |
908 | return bdi_register(bdi, NULL, "lustre-%d", | |
909 | atomic_inc_return(&ll_bdi_num)); | |
910 | } | |
911 | ||
912 | int ll_fill_super(struct super_block *sb, struct vfsmount *mnt) | |
913 | { | |
914 | struct lustre_profile *lprof = NULL; | |
915 | struct lustre_sb_info *lsi = s2lsi(sb); | |
916 | struct ll_sb_info *sbi; | |
917 | char *dt = NULL, *md = NULL; | |
918 | char *profilenm = get_profile_name(sb); | |
919 | struct config_llog_instance *cfg; | |
920 | /* %p for void* in printf needs 16+2 characters: 0xffffffffffffffff */ | |
921 | const int instlen = sizeof(cfg->cfg_instance) * 2 + 2; | |
922 | int err; | |
d7e09d03 PT |
923 | |
924 | CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb); | |
925 | ||
496a51bd JL |
926 | cfg = kzalloc(sizeof(*cfg), GFP_NOFS); |
927 | if (!cfg) | |
0a3bdb00 | 928 | return -ENOMEM; |
d7e09d03 PT |
929 | |
930 | try_module_get(THIS_MODULE); | |
931 | ||
932 | /* client additional sb info */ | |
933 | lsi->lsi_llsbi = sbi = ll_init_sbi(); | |
934 | if (!sbi) { | |
935 | module_put(THIS_MODULE); | |
936 | OBD_FREE_PTR(cfg); | |
0a3bdb00 | 937 | return -ENOMEM; |
d7e09d03 PT |
938 | } |
939 | ||
940 | err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags); | |
941 | if (err) | |
34e1f2bb | 942 | goto out_free; |
d7e09d03 PT |
943 | |
944 | err = bdi_init(&lsi->lsi_bdi); | |
945 | if (err) | |
34e1f2bb | 946 | goto out_free; |
d7e09d03 | 947 | lsi->lsi_flags |= LSI_BDI_INITIALIZED; |
b4caecd4 | 948 | lsi->lsi_bdi.capabilities = 0; |
d7e09d03 PT |
949 | err = ll_bdi_register(&lsi->lsi_bdi); |
950 | if (err) | |
34e1f2bb | 951 | goto out_free; |
d7e09d03 PT |
952 | |
953 | sb->s_bdi = &lsi->lsi_bdi; | |
3ea8f3bc LS |
954 | /* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */ |
955 | sb->s_d_op = &ll_d_ops; | |
d7e09d03 PT |
956 | |
957 | /* Generate a string unique to this super, in case some joker tries | |
958 | to mount the same fs at two mount points. | |
959 | Use the address of the super itself.*/ | |
960 | cfg->cfg_instance = sb; | |
961 | cfg->cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid; | |
962 | cfg->cfg_callback = class_config_llog_handler; | |
963 | /* set up client obds */ | |
964 | err = lustre_process_log(sb, profilenm, cfg); | |
965 | if (err < 0) { | |
966 | CERROR("Unable to process log: %d\n", err); | |
34e1f2bb | 967 | goto out_free; |
d7e09d03 PT |
968 | } |
969 | ||
970 | /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */ | |
971 | lprof = class_get_profile(profilenm); | |
972 | if (lprof == NULL) { | |
2d00bd17 JP |
973 | LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be read from the MGS. Does that filesystem exist?\n", |
974 | profilenm); | |
34e1f2bb JL |
975 | err = -EINVAL; |
976 | goto out_free; | |
d7e09d03 PT |
977 | } |
978 | CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm, | |
979 | lprof->lp_md, lprof->lp_dt); | |
980 | ||
496a51bd | 981 | dt = kzalloc(strlen(lprof->lp_dt) + instlen + 2, GFP_NOFS); |
34e1f2bb JL |
982 | if (!dt) { |
983 | err = -ENOMEM; | |
984 | goto out_free; | |
985 | } | |
d7e09d03 PT |
986 | sprintf(dt, "%s-%p", lprof->lp_dt, cfg->cfg_instance); |
987 | ||
496a51bd | 988 | md = kzalloc(strlen(lprof->lp_md) + instlen + 2, GFP_NOFS); |
34e1f2bb JL |
989 | if (!md) { |
990 | err = -ENOMEM; | |
991 | goto out_free; | |
992 | } | |
d7e09d03 PT |
993 | sprintf(md, "%s-%p", lprof->lp_md, cfg->cfg_instance); |
994 | ||
995 | /* connections, registrations, sb setup */ | |
996 | err = client_common_fill_super(sb, md, dt, mnt); | |
997 | ||
998 | out_free: | |
999 | if (md) | |
1000 | OBD_FREE(md, strlen(lprof->lp_md) + instlen + 2); | |
1001 | if (dt) | |
1002 | OBD_FREE(dt, strlen(lprof->lp_dt) + instlen + 2); | |
1003 | if (err) | |
1004 | ll_put_super(sb); | |
1005 | else if (sbi->ll_flags & LL_SBI_VERBOSE) | |
1006 | LCONSOLE_WARN("Mounted %s\n", profilenm); | |
1007 | ||
1008 | OBD_FREE_PTR(cfg); | |
0a3bdb00 | 1009 | return err; |
d7e09d03 PT |
1010 | } /* ll_fill_super */ |
1011 | ||
d7e09d03 PT |
1012 | void ll_put_super(struct super_block *sb) |
1013 | { | |
7d4bae45 | 1014 | struct config_llog_instance cfg, params_cfg; |
d7e09d03 PT |
1015 | struct obd_device *obd; |
1016 | struct lustre_sb_info *lsi = s2lsi(sb); | |
1017 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1018 | char *profilenm = get_profile_name(sb); | |
c52f69c5 | 1019 | int next, force = 1; |
d7e09d03 PT |
1020 | |
1021 | CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm); | |
1022 | ||
1023 | ll_print_capa_stat(sbi); | |
1024 | ||
1025 | cfg.cfg_instance = sb; | |
1026 | lustre_end_log(sb, profilenm, &cfg); | |
1027 | ||
7d4bae45 AB |
1028 | params_cfg.cfg_instance = sb; |
1029 | lustre_end_log(sb, PARAMS_FILENAME, ¶ms_cfg); | |
1030 | ||
d7e09d03 PT |
1031 | if (sbi->ll_md_exp) { |
1032 | obd = class_exp2obd(sbi->ll_md_exp); | |
1033 | if (obd) | |
1034 | force = obd->obd_force; | |
1035 | } | |
1036 | ||
d7e09d03 PT |
1037 | /* We need to set force before the lov_disconnect in |
1038 | lustre_common_put_super, since l_d cleans up osc's as well. */ | |
1039 | if (force) { | |
1040 | next = 0; | |
1041 | while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, | |
1042 | &next)) != NULL) { | |
1043 | obd->obd_force = force; | |
1044 | } | |
1045 | } | |
1046 | ||
1047 | if (sbi->ll_lcq) { | |
1048 | /* Only if client_common_fill_super succeeded */ | |
1049 | client_common_put_super(sb); | |
1050 | } | |
1051 | ||
1052 | next = 0; | |
a15dbf99 | 1053 | while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next))) |
d7e09d03 | 1054 | class_manual_cleanup(obd); |
d7e09d03 PT |
1055 | |
1056 | if (sbi->ll_flags & LL_SBI_VERBOSE) | |
1057 | LCONSOLE_WARN("Unmounted %s\n", profilenm ? profilenm : ""); | |
1058 | ||
1059 | if (profilenm) | |
1060 | class_del_profile(profilenm); | |
1061 | ||
1062 | if (lsi->lsi_flags & LSI_BDI_INITIALIZED) { | |
1063 | bdi_destroy(&lsi->lsi_bdi); | |
1064 | lsi->lsi_flags &= ~LSI_BDI_INITIALIZED; | |
1065 | } | |
1066 | ||
1067 | ll_free_sbi(sb); | |
1068 | lsi->lsi_llsbi = NULL; | |
1069 | ||
1070 | lustre_common_put_super(sb); | |
1071 | ||
1072 | module_put(THIS_MODULE); | |
d7e09d03 PT |
1073 | } /* client_put_super */ |
1074 | ||
1075 | struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock) | |
1076 | { | |
1077 | struct inode *inode = NULL; | |
1078 | ||
1079 | /* NOTE: we depend on atomic igrab() -bzzz */ | |
1080 | lock_res_and_lock(lock); | |
1081 | if (lock->l_resource->lr_lvb_inode) { | |
aff9d8e8 | 1082 | struct ll_inode_info *lli; |
cf29a7b6 | 1083 | |
d7e09d03 PT |
1084 | lli = ll_i2info(lock->l_resource->lr_lvb_inode); |
1085 | if (lli->lli_inode_magic == LLI_INODE_MAGIC) { | |
1086 | inode = igrab(lock->l_resource->lr_lvb_inode); | |
1087 | } else { | |
1088 | inode = lock->l_resource->lr_lvb_inode; | |
1089 | LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO : | |
2d00bd17 | 1090 | D_WARNING, lock, "lr_lvb_inode %p is bogus: magic %08x", |
d7e09d03 PT |
1091 | lock->l_resource->lr_lvb_inode, |
1092 | lli->lli_inode_magic); | |
1093 | inode = NULL; | |
1094 | } | |
1095 | } | |
1096 | unlock_res_and_lock(lock); | |
1097 | return inode; | |
1098 | } | |
1099 | ||
d7e09d03 PT |
1100 | void ll_clear_inode(struct inode *inode) |
1101 | { | |
1102 | struct ll_inode_info *lli = ll_i2info(inode); | |
1103 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
d7e09d03 PT |
1104 | |
1105 | CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, | |
1106 | inode->i_generation, inode); | |
1107 | ||
1108 | if (S_ISDIR(inode->i_mode)) { | |
1109 | /* these should have been cleared in ll_file_release */ | |
1110 | LASSERT(lli->lli_opendir_key == NULL); | |
1111 | LASSERT(lli->lli_sai == NULL); | |
1112 | LASSERT(lli->lli_opendir_pid == 0); | |
1113 | } | |
1114 | ||
ae5ef67b | 1115 | spin_lock(&lli->lli_lock); |
d7e09d03 | 1116 | ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK; |
ae5ef67b | 1117 | spin_unlock(&lli->lli_lock); |
d7e09d03 PT |
1118 | md_null_inode(sbi->ll_md_exp, ll_inode2fid(inode)); |
1119 | ||
1120 | LASSERT(!lli->lli_open_fd_write_count); | |
1121 | LASSERT(!lli->lli_open_fd_read_count); | |
1122 | LASSERT(!lli->lli_open_fd_exec_count); | |
1123 | ||
1124 | if (lli->lli_mds_write_och) | |
1125 | ll_md_real_close(inode, FMODE_WRITE); | |
1126 | if (lli->lli_mds_exec_och) | |
1127 | ll_md_real_close(inode, FMODE_EXEC); | |
1128 | if (lli->lli_mds_read_och) | |
1129 | ll_md_real_close(inode, FMODE_READ); | |
1130 | ||
1131 | if (S_ISLNK(inode->i_mode) && lli->lli_symlink_name) { | |
1132 | OBD_FREE(lli->lli_symlink_name, | |
1133 | strlen(lli->lli_symlink_name) + 1); | |
1134 | lli->lli_symlink_name = NULL; | |
1135 | } | |
1136 | ||
7fc1f831 AP |
1137 | ll_xattr_cache_destroy(inode); |
1138 | ||
d7e09d03 PT |
1139 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { |
1140 | LASSERT(lli->lli_posix_acl == NULL); | |
1141 | if (lli->lli_remote_perms) { | |
1142 | free_rmtperm_hash(lli->lli_remote_perms); | |
1143 | lli->lli_remote_perms = NULL; | |
1144 | } | |
1145 | } | |
1146 | #ifdef CONFIG_FS_POSIX_ACL | |
1147 | else if (lli->lli_posix_acl) { | |
1148 | LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1); | |
1149 | LASSERT(lli->lli_remote_perms == NULL); | |
1150 | posix_acl_release(lli->lli_posix_acl); | |
1151 | lli->lli_posix_acl = NULL; | |
1152 | } | |
1153 | #endif | |
1154 | lli->lli_inode_magic = LLI_INODE_DEAD; | |
1155 | ||
1156 | ll_clear_inode_capas(inode); | |
1157 | if (!S_ISDIR(inode->i_mode)) | |
1158 | LASSERT(list_empty(&lli->lli_agl_list)); | |
1159 | ||
1160 | /* | |
1161 | * XXX This has to be done before lsm is freed below, because | |
1162 | * cl_object still uses inode lsm. | |
1163 | */ | |
1164 | cl_inode_fini(inode); | |
1165 | lli->lli_has_smd = false; | |
d7e09d03 PT |
1166 | } |
1167 | ||
3d3ab8cc | 1168 | static int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data, |
d7e09d03 PT |
1169 | struct md_open_data **mod) |
1170 | { | |
1171 | struct lustre_md md; | |
2b0143b5 | 1172 | struct inode *inode = d_inode(dentry); |
d7e09d03 PT |
1173 | struct ll_sb_info *sbi = ll_i2sbi(inode); |
1174 | struct ptlrpc_request *request = NULL; | |
1175 | int rc, ia_valid; | |
d7e09d03 PT |
1176 | |
1177 | op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0, | |
1178 | LUSTRE_OPC_ANY, NULL); | |
1179 | if (IS_ERR(op_data)) | |
0a3bdb00 | 1180 | return PTR_ERR(op_data); |
d7e09d03 PT |
1181 | |
1182 | rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0, | |
1183 | &request, mod); | |
1184 | if (rc) { | |
1185 | ptlrpc_req_finished(request); | |
1186 | if (rc == -ENOENT) { | |
1187 | clear_nlink(inode); | |
1188 | /* Unlinked special device node? Or just a race? | |
1189 | * Pretend we done everything. */ | |
1190 | if (!S_ISREG(inode->i_mode) && | |
1191 | !S_ISDIR(inode->i_mode)) { | |
1192 | ia_valid = op_data->op_attr.ia_valid; | |
1193 | op_data->op_attr.ia_valid &= ~TIMES_SET_FLAGS; | |
1194 | rc = simple_setattr(dentry, &op_data->op_attr); | |
1195 | op_data->op_attr.ia_valid = ia_valid; | |
1196 | } | |
1197 | } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) { | |
1198 | CERROR("md_setattr fails: rc = %d\n", rc); | |
1199 | } | |
0a3bdb00 | 1200 | return rc; |
d7e09d03 PT |
1201 | } |
1202 | ||
1203 | rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp, | |
1204 | sbi->ll_md_exp, &md); | |
1205 | if (rc) { | |
1206 | ptlrpc_req_finished(request); | |
0a3bdb00 | 1207 | return rc; |
d7e09d03 PT |
1208 | } |
1209 | ||
251c4317 JH |
1210 | ia_valid = op_data->op_attr.ia_valid; |
1211 | /* inode size will be in ll_setattr_ost, can't do it now since dirty | |
1212 | * cache is not cleared yet. */ | |
1213 | op_data->op_attr.ia_valid &= ~(TIMES_SET_FLAGS | ATTR_SIZE); | |
1214 | rc = simple_setattr(dentry, &op_data->op_attr); | |
1215 | op_data->op_attr.ia_valid = ia_valid; | |
1216 | ||
d7e09d03 PT |
1217 | /* Extract epoch data if obtained. */ |
1218 | op_data->op_handle = md.body->handle; | |
1219 | op_data->op_ioepoch = md.body->ioepoch; | |
1220 | ||
1221 | ll_update_inode(inode, &md); | |
1222 | ptlrpc_req_finished(request); | |
1223 | ||
0a3bdb00 | 1224 | return rc; |
d7e09d03 PT |
1225 | } |
1226 | ||
1227 | /* Close IO epoch and send Size-on-MDS attribute update. */ | |
1228 | static int ll_setattr_done_writing(struct inode *inode, | |
1229 | struct md_op_data *op_data, | |
1230 | struct md_open_data *mod) | |
1231 | { | |
1232 | struct ll_inode_info *lli = ll_i2info(inode); | |
1233 | int rc = 0; | |
d7e09d03 PT |
1234 | |
1235 | LASSERT(op_data != NULL); | |
1236 | if (!S_ISREG(inode->i_mode)) | |
0a3bdb00 | 1237 | return 0; |
d7e09d03 | 1238 | |
b0f5aad5 | 1239 | CDEBUG(D_INODE, "Epoch %llu closed on "DFID" for truncate\n", |
d7e09d03 PT |
1240 | op_data->op_ioepoch, PFID(&lli->lli_fid)); |
1241 | ||
1242 | op_data->op_flags = MF_EPOCH_CLOSE; | |
1243 | ll_done_writing_attr(inode, op_data); | |
1244 | ll_pack_inode2opdata(inode, op_data, NULL); | |
1245 | ||
1246 | rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod); | |
1247 | if (rc == -EAGAIN) { | |
1248 | /* MDS has instructed us to obtain Size-on-MDS attribute | |
1249 | * from OSTs and send setattr to back to MDS. */ | |
1250 | rc = ll_som_update(inode, op_data); | |
1251 | } else if (rc) { | |
1252 | CERROR("inode %lu mdc truncate failed: rc = %d\n", | |
1253 | inode->i_ino, rc); | |
1254 | } | |
0a3bdb00 | 1255 | return rc; |
d7e09d03 PT |
1256 | } |
1257 | ||
1258 | static int ll_setattr_ost(struct inode *inode, struct iattr *attr) | |
1259 | { | |
1260 | struct obd_capa *capa; | |
1261 | int rc; | |
1262 | ||
1263 | if (attr->ia_valid & ATTR_SIZE) | |
1264 | capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC); | |
1265 | else | |
1266 | capa = ll_mdscapa_get(inode); | |
1267 | ||
1268 | rc = cl_setattr_ost(inode, attr, capa); | |
1269 | ||
1270 | if (attr->ia_valid & ATTR_SIZE) | |
1271 | ll_truncate_free_capa(capa); | |
1272 | else | |
1273 | capa_put(capa); | |
1274 | ||
1275 | return rc; | |
1276 | } | |
1277 | ||
1278 | ||
1279 | /* If this inode has objects allocated to it (lsm != NULL), then the OST | |
1280 | * object(s) determine the file size and mtime. Otherwise, the MDS will | |
1281 | * keep these values until such a time that objects are allocated for it. | |
1282 | * We do the MDS operations first, as it is checking permissions for us. | |
1283 | * We don't to the MDS RPC if there is nothing that we want to store there, | |
1284 | * otherwise there is no harm in updating mtime/atime on the MDS if we are | |
1285 | * going to do an RPC anyways. | |
1286 | * | |
1287 | * If we are doing a truncate, we will send the mtime and ctime updates | |
1288 | * to the OST with the punch RPC, otherwise we do an explicit setattr RPC. | |
1289 | * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE | |
1290 | * at the same time. | |
a720b790 JL |
1291 | * |
1292 | * In case of HSMimport, we only set attr on MDS. | |
d7e09d03 | 1293 | */ |
a720b790 | 1294 | int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import) |
d7e09d03 | 1295 | { |
2b0143b5 | 1296 | struct inode *inode = d_inode(dentry); |
d7e09d03 PT |
1297 | struct ll_inode_info *lli = ll_i2info(inode); |
1298 | struct md_op_data *op_data = NULL; | |
1299 | struct md_open_data *mod = NULL; | |
5ea17d6c | 1300 | bool file_is_released = false; |
d7e09d03 | 1301 | int rc = 0, rc1 = 0; |
d7e09d03 | 1302 | |
a720b790 JL |
1303 | CDEBUG(D_VFSTRACE, |
1304 | "%s: setattr inode %p/fid:"DFID | |
1305 | " from %llu to %llu, valid %x, hsm_import %d\n", | |
1306 | ll_get_fsname(inode->i_sb, NULL, 0), inode, | |
d7e09d03 | 1307 | PFID(&lli->lli_fid), i_size_read(inode), attr->ia_size, |
a720b790 | 1308 | attr->ia_valid, hsm_import); |
d7e09d03 PT |
1309 | |
1310 | if (attr->ia_valid & ATTR_SIZE) { | |
1311 | /* Check new size against VFS/VM file size limit and rlimit */ | |
1312 | rc = inode_newsize_ok(inode, attr->ia_size); | |
1313 | if (rc) | |
0a3bdb00 | 1314 | return rc; |
d7e09d03 PT |
1315 | |
1316 | /* The maximum Lustre file size is variable, based on the | |
1317 | * OST maximum object size and number of stripes. This | |
1318 | * needs another check in addition to the VFS check above. */ | |
1319 | if (attr->ia_size > ll_file_maxbytes(inode)) { | |
1d8cb70c | 1320 | CDEBUG(D_INODE, "file "DFID" too large %llu > %llu\n", |
d7e09d03 PT |
1321 | PFID(&lli->lli_fid), attr->ia_size, |
1322 | ll_file_maxbytes(inode)); | |
0a3bdb00 | 1323 | return -EFBIG; |
d7e09d03 PT |
1324 | } |
1325 | ||
1326 | attr->ia_valid |= ATTR_MTIME | ATTR_CTIME; | |
1327 | } | |
1328 | ||
1329 | /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */ | |
1330 | if (attr->ia_valid & TIMES_SET_FLAGS) { | |
4b1a25f0 | 1331 | if ((!uid_eq(current_fsuid(), inode->i_uid)) && |
2eb90a75 | 1332 | !capable(CFS_CAP_FOWNER)) |
0a3bdb00 | 1333 | return -EPERM; |
d7e09d03 PT |
1334 | } |
1335 | ||
1336 | /* We mark all of the fields "set" so MDS/OST does not re-set them */ | |
1337 | if (attr->ia_valid & ATTR_CTIME) { | |
0f1c743b | 1338 | attr->ia_ctime = CURRENT_TIME; |
d7e09d03 PT |
1339 | attr->ia_valid |= ATTR_CTIME_SET; |
1340 | } | |
1341 | if (!(attr->ia_valid & ATTR_ATIME_SET) && | |
1342 | (attr->ia_valid & ATTR_ATIME)) { | |
0f1c743b | 1343 | attr->ia_atime = CURRENT_TIME; |
d7e09d03 PT |
1344 | attr->ia_valid |= ATTR_ATIME_SET; |
1345 | } | |
1346 | if (!(attr->ia_valid & ATTR_MTIME_SET) && | |
1347 | (attr->ia_valid & ATTR_MTIME)) { | |
0f1c743b | 1348 | attr->ia_mtime = CURRENT_TIME; |
d7e09d03 PT |
1349 | attr->ia_valid |= ATTR_MTIME_SET; |
1350 | } | |
1351 | ||
1352 | if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME)) | |
1353 | CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n", | |
1354 | LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime), | |
7264b8a5 | 1355 | get_seconds()); |
d7e09d03 PT |
1356 | |
1357 | /* If we are changing file size, file content is modified, flag it. */ | |
1358 | if (attr->ia_valid & ATTR_SIZE) { | |
1359 | attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE; | |
1360 | spin_lock(&lli->lli_lock); | |
1361 | lli->lli_flags |= LLIF_DATA_MODIFIED; | |
1362 | spin_unlock(&lli->lli_lock); | |
1363 | } | |
1364 | ||
1365 | /* We always do an MDS RPC, even if we're only changing the size; | |
1366 | * only the MDS knows whether truncate() should fail with -ETXTBUSY */ | |
1367 | ||
496a51bd JL |
1368 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
1369 | if (!op_data) | |
0a3bdb00 | 1370 | return -ENOMEM; |
d7e09d03 PT |
1371 | |
1372 | if (!S_ISDIR(inode->i_mode)) { | |
1373 | if (attr->ia_valid & ATTR_SIZE) | |
1374 | inode_dio_write_done(inode); | |
1375 | mutex_unlock(&inode->i_mutex); | |
d7e09d03 PT |
1376 | } |
1377 | ||
1378 | memcpy(&op_data->op_attr, attr, sizeof(*attr)); | |
1379 | ||
1380 | /* Open epoch for truncate. */ | |
1381 | if (exp_connect_som(ll_i2mdexp(inode)) && | |
1382 | (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET))) | |
1383 | op_data->op_flags = MF_EPOCH_OPEN; | |
1384 | ||
5ea17d6c JL |
1385 | /* truncate on a released file must failed with -ENODATA, |
1386 | * so size must not be set on MDS for released file | |
1387 | * but other attributes must be set | |
1388 | */ | |
1389 | if (S_ISREG(inode->i_mode)) { | |
1390 | struct lov_stripe_md *lsm; | |
1391 | __u32 gen; | |
1392 | ||
1393 | ll_layout_refresh(inode, &gen); | |
1394 | lsm = ccc_inode_lsm_get(inode); | |
1395 | if (lsm && lsm->lsm_pattern & LOV_PATTERN_F_RELEASED) | |
1396 | file_is_released = true; | |
1397 | ccc_inode_lsm_put(inode, lsm); | |
1398 | } | |
1399 | ||
a720b790 | 1400 | /* if not in HSM import mode, clear size attr for released file |
5ea17d6c JL |
1401 | * we clear the attribute send to MDT in op_data, not the original |
1402 | * received from caller in attr which is used later to | |
1403 | * decide return code */ | |
a720b790 | 1404 | if (file_is_released && (attr->ia_valid & ATTR_SIZE) && !hsm_import) |
5ea17d6c JL |
1405 | op_data->op_attr.ia_valid &= ~ATTR_SIZE; |
1406 | ||
d7e09d03 PT |
1407 | rc = ll_md_setattr(dentry, op_data, &mod); |
1408 | if (rc) | |
34e1f2bb | 1409 | goto out; |
d7e09d03 | 1410 | |
a720b790 | 1411 | /* truncate failed (only when non HSM import), others succeed */ |
5ea17d6c | 1412 | if (file_is_released) { |
a720b790 | 1413 | if ((attr->ia_valid & ATTR_SIZE) && !hsm_import) |
34e1f2bb | 1414 | rc = -ENODATA; |
5ea17d6c | 1415 | else |
34e1f2bb JL |
1416 | rc = 0; |
1417 | goto out; | |
5ea17d6c JL |
1418 | } |
1419 | ||
d7e09d03 PT |
1420 | /* RPC to MDT is sent, cancel data modification flag */ |
1421 | if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) { | |
1422 | spin_lock(&lli->lli_lock); | |
1423 | lli->lli_flags &= ~LLIF_DATA_MODIFIED; | |
1424 | spin_unlock(&lli->lli_lock); | |
1425 | } | |
1426 | ||
1427 | ll_ioepoch_open(lli, op_data->op_ioepoch); | |
34e1f2bb JL |
1428 | if (!S_ISREG(inode->i_mode)) { |
1429 | rc = 0; | |
1430 | goto out; | |
1431 | } | |
d7e09d03 PT |
1432 | |
1433 | if (attr->ia_valid & (ATTR_SIZE | | |
1434 | ATTR_ATIME | ATTR_ATIME_SET | | |
1435 | ATTR_MTIME | ATTR_MTIME_SET)) | |
1436 | /* For truncate and utimes sending attributes to OSTs, setting | |
1437 | * mtime/atime to the past will be performed under PW [0:EOF] | |
1438 | * extent lock (new_size:EOF for truncate). It may seem | |
1439 | * excessive to send mtime/atime updates to OSTs when not | |
1440 | * setting times to past, but it is necessary due to possible | |
1441 | * time de-synchronization between MDT inode and OST objects */ | |
178ba1e0 BJ |
1442 | if (attr->ia_valid & ATTR_SIZE) |
1443 | down_write(&lli->lli_trunc_sem); | |
d7e09d03 | 1444 | rc = ll_setattr_ost(inode, attr); |
178ba1e0 BJ |
1445 | if (attr->ia_valid & ATTR_SIZE) |
1446 | up_write(&lli->lli_trunc_sem); | |
d7e09d03 PT |
1447 | out: |
1448 | if (op_data) { | |
1449 | if (op_data->op_ioepoch) { | |
1450 | rc1 = ll_setattr_done_writing(inode, op_data, mod); | |
1451 | if (!rc) | |
1452 | rc = rc1; | |
1453 | } | |
1454 | ll_finish_md_op_data(op_data); | |
1455 | } | |
1456 | if (!S_ISDIR(inode->i_mode)) { | |
d7e09d03 | 1457 | mutex_lock(&inode->i_mutex); |
a720b790 | 1458 | if ((attr->ia_valid & ATTR_SIZE) && !hsm_import) |
d7e09d03 PT |
1459 | inode_dio_wait(inode); |
1460 | } | |
1461 | ||
1462 | ll_stats_ops_tally(ll_i2sbi(inode), (attr->ia_valid & ATTR_SIZE) ? | |
1463 | LPROC_LL_TRUNC : LPROC_LL_SETATTR, 1); | |
1464 | ||
251c4317 | 1465 | return rc; |
d7e09d03 PT |
1466 | } |
1467 | ||
1468 | int ll_setattr(struct dentry *de, struct iattr *attr) | |
1469 | { | |
2b0143b5 | 1470 | int mode = d_inode(de)->i_mode; |
d7e09d03 PT |
1471 | |
1472 | if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) == | |
1473 | (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) | |
1474 | attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE; | |
1475 | ||
1476 | if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) == | |
1477 | (ATTR_SIZE|ATTR_MODE)) && | |
1478 | (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) || | |
1479 | (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) && | |
1480 | !(attr->ia_mode & S_ISGID)))) | |
1481 | attr->ia_valid |= ATTR_FORCE; | |
1482 | ||
98639249 NC |
1483 | if ((attr->ia_valid & ATTR_MODE) && |
1484 | (mode & S_ISUID) && | |
d7e09d03 PT |
1485 | !(attr->ia_mode & S_ISUID) && |
1486 | !(attr->ia_valid & ATTR_KILL_SUID)) | |
1487 | attr->ia_valid |= ATTR_KILL_SUID; | |
1488 | ||
98639249 NC |
1489 | if ((attr->ia_valid & ATTR_MODE) && |
1490 | ((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) && | |
d7e09d03 PT |
1491 | !(attr->ia_mode & S_ISGID) && |
1492 | !(attr->ia_valid & ATTR_KILL_SGID)) | |
1493 | attr->ia_valid |= ATTR_KILL_SGID; | |
1494 | ||
a720b790 | 1495 | return ll_setattr_raw(de, attr, false); |
d7e09d03 PT |
1496 | } |
1497 | ||
1498 | int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs, | |
1499 | __u64 max_age, __u32 flags) | |
1500 | { | |
1501 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1502 | struct obd_statfs obd_osfs; | |
1503 | int rc; | |
d7e09d03 PT |
1504 | |
1505 | rc = obd_statfs(NULL, sbi->ll_md_exp, osfs, max_age, flags); | |
1506 | if (rc) { | |
1507 | CERROR("md_statfs fails: rc = %d\n", rc); | |
0a3bdb00 | 1508 | return rc; |
d7e09d03 PT |
1509 | } |
1510 | ||
1511 | osfs->os_type = sb->s_magic; | |
1512 | ||
b0f5aad5 | 1513 | CDEBUG(D_SUPER, "MDC blocks %llu/%llu objects %llu/%llu\n", |
1d8cb70c GD |
1514 | osfs->os_bavail, osfs->os_blocks, osfs->os_ffree, |
1515 | osfs->os_files); | |
d7e09d03 PT |
1516 | |
1517 | if (sbi->ll_flags & LL_SBI_LAZYSTATFS) | |
1518 | flags |= OBD_STATFS_NODELAY; | |
1519 | ||
1520 | rc = obd_statfs_rqset(sbi->ll_dt_exp, &obd_osfs, max_age, flags); | |
1521 | if (rc) { | |
1522 | CERROR("obd_statfs fails: rc = %d\n", rc); | |
0a3bdb00 | 1523 | return rc; |
d7e09d03 PT |
1524 | } |
1525 | ||
b0f5aad5 | 1526 | CDEBUG(D_SUPER, "OSC blocks %llu/%llu objects %llu/%llu\n", |
d7e09d03 PT |
1527 | obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree, |
1528 | obd_osfs.os_files); | |
1529 | ||
1530 | osfs->os_bsize = obd_osfs.os_bsize; | |
1531 | osfs->os_blocks = obd_osfs.os_blocks; | |
1532 | osfs->os_bfree = obd_osfs.os_bfree; | |
1533 | osfs->os_bavail = obd_osfs.os_bavail; | |
1534 | ||
1535 | /* If we don't have as many objects free on the OST as inodes | |
1536 | * on the MDS, we reduce the total number of inodes to | |
1537 | * compensate, so that the "inodes in use" number is correct. | |
1538 | */ | |
1539 | if (obd_osfs.os_ffree < osfs->os_ffree) { | |
1540 | osfs->os_files = (osfs->os_files - osfs->os_ffree) + | |
1541 | obd_osfs.os_ffree; | |
1542 | osfs->os_ffree = obd_osfs.os_ffree; | |
1543 | } | |
1544 | ||
0a3bdb00 | 1545 | return rc; |
d7e09d03 PT |
1546 | } |
1547 | int ll_statfs(struct dentry *de, struct kstatfs *sfs) | |
1548 | { | |
1549 | struct super_block *sb = de->d_sb; | |
1550 | struct obd_statfs osfs; | |
1551 | int rc; | |
1552 | ||
b0f5aad5 | 1553 | CDEBUG(D_VFSTRACE, "VFS Op: at %llu jiffies\n", get_jiffies_64()); |
d7e09d03 PT |
1554 | ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1); |
1555 | ||
1556 | /* Some amount of caching on the client is allowed */ | |
1557 | rc = ll_statfs_internal(sb, &osfs, | |
1558 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
1559 | 0); | |
1560 | if (rc) | |
1561 | return rc; | |
1562 | ||
1563 | statfs_unpack(sfs, &osfs); | |
1564 | ||
1565 | /* We need to downshift for all 32-bit kernels, because we can't | |
1566 | * tell if the kernel is being called via sys_statfs64() or not. | |
1567 | * Stop before overflowing f_bsize - in which case it is better | |
1568 | * to just risk EOVERFLOW if caller is using old sys_statfs(). */ | |
1569 | if (sizeof(long) < 8) { | |
1570 | while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) { | |
1571 | sfs->f_bsize <<= 1; | |
1572 | ||
1573 | osfs.os_blocks >>= 1; | |
1574 | osfs.os_bfree >>= 1; | |
1575 | osfs.os_bavail >>= 1; | |
1576 | } | |
1577 | } | |
1578 | ||
1579 | sfs->f_blocks = osfs.os_blocks; | |
1580 | sfs->f_bfree = osfs.os_bfree; | |
1581 | sfs->f_bavail = osfs.os_bavail; | |
bd994071 | 1582 | sfs->f_fsid = ll_s2sbi(sb)->ll_fsid; |
d7e09d03 PT |
1583 | return 0; |
1584 | } | |
1585 | ||
1586 | void ll_inode_size_lock(struct inode *inode) | |
1587 | { | |
1588 | struct ll_inode_info *lli; | |
1589 | ||
1590 | LASSERT(!S_ISDIR(inode->i_mode)); | |
1591 | ||
1592 | lli = ll_i2info(inode); | |
47a57bde | 1593 | mutex_lock(&lli->lli_size_mutex); |
d7e09d03 PT |
1594 | } |
1595 | ||
1596 | void ll_inode_size_unlock(struct inode *inode) | |
1597 | { | |
1598 | struct ll_inode_info *lli; | |
1599 | ||
1600 | lli = ll_i2info(inode); | |
47a57bde | 1601 | mutex_unlock(&lli->lli_size_mutex); |
d7e09d03 PT |
1602 | } |
1603 | ||
1604 | void ll_update_inode(struct inode *inode, struct lustre_md *md) | |
1605 | { | |
1606 | struct ll_inode_info *lli = ll_i2info(inode); | |
1607 | struct mdt_body *body = md->body; | |
1608 | struct lov_stripe_md *lsm = md->lsm; | |
1609 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
1610 | ||
1611 | LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0)); | |
1612 | if (lsm != NULL) { | |
1613 | if (!lli->lli_has_smd && | |
1614 | !(sbi->ll_flags & LL_SBI_LAYOUT_LOCK)) | |
1615 | cl_file_inode_init(inode, md); | |
1616 | ||
1617 | lli->lli_maxbytes = lsm->lsm_maxbytes; | |
1618 | if (lli->lli_maxbytes > MAX_LFS_FILESIZE) | |
1619 | lli->lli_maxbytes = MAX_LFS_FILESIZE; | |
1620 | } | |
1621 | ||
1622 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
1623 | if (body->valid & OBD_MD_FLRMTPERM) | |
1624 | ll_update_remote_perm(inode, md->remote_perm); | |
1625 | } | |
1626 | #ifdef CONFIG_FS_POSIX_ACL | |
1627 | else if (body->valid & OBD_MD_FLACL) { | |
1628 | spin_lock(&lli->lli_lock); | |
1629 | if (lli->lli_posix_acl) | |
1630 | posix_acl_release(lli->lli_posix_acl); | |
1631 | lli->lli_posix_acl = md->posix_acl; | |
1632 | spin_unlock(&lli->lli_lock); | |
1633 | } | |
1634 | #endif | |
c1e2699d | 1635 | inode->i_ino = cl_fid_build_ino(&body->fid1, |
1636 | sbi->ll_flags & LL_SBI_32BIT_API); | |
d7e09d03 PT |
1637 | inode->i_generation = cl_fid_build_gen(&body->fid1); |
1638 | ||
1639 | if (body->valid & OBD_MD_FLATIME) { | |
1640 | if (body->atime > LTIME_S(inode->i_atime)) | |
1641 | LTIME_S(inode->i_atime) = body->atime; | |
1642 | lli->lli_lvb.lvb_atime = body->atime; | |
1643 | } | |
1644 | if (body->valid & OBD_MD_FLMTIME) { | |
1645 | if (body->mtime > LTIME_S(inode->i_mtime)) { | |
b0f5aad5 GKH |
1646 | CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %llu\n", |
1647 | inode->i_ino, LTIME_S(inode->i_mtime), | |
1648 | body->mtime); | |
d7e09d03 PT |
1649 | LTIME_S(inode->i_mtime) = body->mtime; |
1650 | } | |
1651 | lli->lli_lvb.lvb_mtime = body->mtime; | |
1652 | } | |
1653 | if (body->valid & OBD_MD_FLCTIME) { | |
1654 | if (body->ctime > LTIME_S(inode->i_ctime)) | |
1655 | LTIME_S(inode->i_ctime) = body->ctime; | |
1656 | lli->lli_lvb.lvb_ctime = body->ctime; | |
1657 | } | |
1658 | if (body->valid & OBD_MD_FLMODE) | |
1659 | inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT); | |
1660 | if (body->valid & OBD_MD_FLTYPE) | |
1661 | inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT); | |
1662 | LASSERT(inode->i_mode != 0); | |
566be54d | 1663 | if (S_ISREG(inode->i_mode)) |
e6768831 TJ |
1664 | inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, |
1665 | LL_MAX_BLKSIZE_BITS); | |
566be54d | 1666 | else |
d7e09d03 | 1667 | inode->i_blkbits = inode->i_sb->s_blocksize_bits; |
d7e09d03 | 1668 | if (body->valid & OBD_MD_FLUID) |
4b1a25f0 | 1669 | inode->i_uid = make_kuid(&init_user_ns, body->uid); |
d7e09d03 | 1670 | if (body->valid & OBD_MD_FLGID) |
4b1a25f0 | 1671 | inode->i_gid = make_kgid(&init_user_ns, body->gid); |
d7e09d03 PT |
1672 | if (body->valid & OBD_MD_FLFLAGS) |
1673 | inode->i_flags = ll_ext_to_inode_flags(body->flags); | |
1674 | if (body->valid & OBD_MD_FLNLINK) | |
1675 | set_nlink(inode, body->nlink); | |
1676 | if (body->valid & OBD_MD_FLRDEV) | |
1677 | inode->i_rdev = old_decode_dev(body->rdev); | |
1678 | ||
1679 | if (body->valid & OBD_MD_FLID) { | |
1680 | /* FID shouldn't be changed! */ | |
1681 | if (fid_is_sane(&lli->lli_fid)) { | |
1682 | LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1), | |
1683 | "Trying to change FID "DFID | |
1684 | " to the "DFID", inode %lu/%u(%p)\n", | |
1685 | PFID(&lli->lli_fid), PFID(&body->fid1), | |
1686 | inode->i_ino, inode->i_generation, inode); | |
1687 | } else | |
1688 | lli->lli_fid = body->fid1; | |
1689 | } | |
1690 | ||
1691 | LASSERT(fid_seq(&lli->lli_fid) != 0); | |
1692 | ||
1693 | if (body->valid & OBD_MD_FLSIZE) { | |
1694 | if (exp_connect_som(ll_i2mdexp(inode)) && | |
1695 | S_ISREG(inode->i_mode)) { | |
1696 | struct lustre_handle lockh; | |
1697 | ldlm_mode_t mode; | |
1698 | ||
1699 | /* As it is possible a blocking ast has been processed | |
1700 | * by this time, we need to check there is an UPDATE | |
1701 | * lock on the client and set LLIF_MDS_SIZE_LOCK holding | |
1702 | * it. */ | |
1703 | mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE, | |
7fc1f831 AP |
1704 | &lockh, LDLM_FL_CBPENDING, |
1705 | LCK_CR | LCK_CW | | |
1706 | LCK_PR | LCK_PW); | |
d7e09d03 PT |
1707 | if (mode) { |
1708 | if (lli->lli_flags & (LLIF_DONE_WRITING | | |
1709 | LLIF_EPOCH_PENDING | | |
1710 | LLIF_SOM_DIRTY)) { | |
2d00bd17 | 1711 | CERROR("ino %lu flags %u still has size authority! do not trust the size got from MDS\n", |
d7e09d03 PT |
1712 | inode->i_ino, lli->lli_flags); |
1713 | } else { | |
1714 | /* Use old size assignment to avoid | |
1715 | * deadlock bz14138 & bz14326 */ | |
1716 | i_size_write(inode, body->size); | |
ae5ef67b | 1717 | spin_lock(&lli->lli_lock); |
d7e09d03 | 1718 | lli->lli_flags |= LLIF_MDS_SIZE_LOCK; |
ae5ef67b | 1719 | spin_unlock(&lli->lli_lock); |
d7e09d03 PT |
1720 | } |
1721 | ldlm_lock_decref(&lockh, mode); | |
1722 | } | |
1723 | } else { | |
1724 | /* Use old size assignment to avoid | |
1725 | * deadlock bz14138 & bz14326 */ | |
1726 | i_size_write(inode, body->size); | |
1727 | ||
1728 | CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n", | |
1729 | inode->i_ino, (unsigned long long)body->size); | |
1730 | } | |
1731 | ||
1732 | if (body->valid & OBD_MD_FLBLOCKS) | |
1733 | inode->i_blocks = body->blocks; | |
1734 | } | |
1735 | ||
1736 | if (body->valid & OBD_MD_FLMDSCAPA) { | |
1737 | LASSERT(md->mds_capa); | |
1738 | ll_add_capa(inode, md->mds_capa); | |
1739 | } | |
1740 | if (body->valid & OBD_MD_FLOSSCAPA) { | |
1741 | LASSERT(md->oss_capa); | |
1742 | ll_add_capa(inode, md->oss_capa); | |
1743 | } | |
5ea17d6c JL |
1744 | |
1745 | if (body->valid & OBD_MD_TSTATE) { | |
1746 | if (body->t_state & MS_RESTORE) | |
1747 | lli->lli_flags |= LLIF_FILE_RESTORING; | |
1748 | } | |
d7e09d03 PT |
1749 | } |
1750 | ||
1751 | void ll_read_inode2(struct inode *inode, void *opaque) | |
1752 | { | |
1753 | struct lustre_md *md = opaque; | |
1754 | struct ll_inode_info *lli = ll_i2info(inode); | |
d7e09d03 PT |
1755 | |
1756 | CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", | |
1757 | PFID(&lli->lli_fid), inode); | |
1758 | ||
1759 | LASSERT(!lli->lli_has_smd); | |
1760 | ||
1761 | /* Core attributes from the MDS first. This is a new inode, and | |
1762 | * the VFS doesn't zero times in the core inode so we have to do | |
1763 | * it ourselves. They will be overwritten by either MDS or OST | |
1764 | * attributes - we just need to make sure they aren't newer. */ | |
1765 | LTIME_S(inode->i_mtime) = 0; | |
1766 | LTIME_S(inode->i_atime) = 0; | |
1767 | LTIME_S(inode->i_ctime) = 0; | |
1768 | inode->i_rdev = 0; | |
1769 | ll_update_inode(inode, md); | |
1770 | ||
1771 | /* OIDEBUG(inode); */ | |
1772 | ||
d7e09d03 PT |
1773 | if (S_ISREG(inode->i_mode)) { |
1774 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
cf29a7b6 | 1775 | |
d7e09d03 PT |
1776 | inode->i_op = &ll_file_inode_operations; |
1777 | inode->i_fop = sbi->ll_fop; | |
1778 | inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops; | |
d7e09d03 PT |
1779 | } else if (S_ISDIR(inode->i_mode)) { |
1780 | inode->i_op = &ll_dir_inode_operations; | |
1781 | inode->i_fop = &ll_dir_operations; | |
d7e09d03 PT |
1782 | } else if (S_ISLNK(inode->i_mode)) { |
1783 | inode->i_op = &ll_fast_symlink_inode_operations; | |
d7e09d03 PT |
1784 | } else { |
1785 | inode->i_op = &ll_special_inode_operations; | |
1786 | ||
1787 | init_special_inode(inode, inode->i_mode, | |
1788 | inode->i_rdev); | |
d7e09d03 PT |
1789 | } |
1790 | } | |
1791 | ||
1792 | void ll_delete_inode(struct inode *inode) | |
1793 | { | |
1794 | struct cl_inode_info *lli = cl_i2info(inode); | |
d7e09d03 PT |
1795 | |
1796 | if (S_ISREG(inode->i_mode) && lli->lli_clob != NULL) | |
1797 | /* discard all dirty pages before truncating them, required by | |
1798 | * osc_extent implementation at LU-1030. */ | |
65fb55d1 NY |
1799 | cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, |
1800 | CL_FSYNC_DISCARD, 1); | |
d7e09d03 | 1801 | |
91b0abe3 | 1802 | truncate_inode_pages_final(&inode->i_data); |
d7e09d03 PT |
1803 | |
1804 | /* Workaround for LU-118 */ | |
1805 | if (inode->i_data.nrpages) { | |
c4226c54 VT |
1806 | spin_lock_irq(&inode->i_data.tree_lock); |
1807 | spin_unlock_irq(&inode->i_data.tree_lock); | |
d7e09d03 | 1808 | LASSERTF(inode->i_data.nrpages == 0, |
2d00bd17 | 1809 | "inode=%lu/%u(%p) nrpages=%lu, see http://jira.whamcloud.com/browse/LU-118\n", |
d7e09d03 PT |
1810 | inode->i_ino, inode->i_generation, inode, |
1811 | inode->i_data.nrpages); | |
1812 | } | |
1813 | /* Workaround end */ | |
1814 | ||
1815 | ll_clear_inode(inode); | |
1816 | clear_inode(inode); | |
d7e09d03 PT |
1817 | } |
1818 | ||
1819 | int ll_iocontrol(struct inode *inode, struct file *file, | |
1820 | unsigned int cmd, unsigned long arg) | |
1821 | { | |
1822 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
1823 | struct ptlrpc_request *req = NULL; | |
1824 | int rc, flags = 0; | |
d7e09d03 | 1825 | |
a58a38ac | 1826 | switch (cmd) { |
d7e09d03 PT |
1827 | case FSFILT_IOC_GETFLAGS: { |
1828 | struct mdt_body *body; | |
1829 | struct md_op_data *op_data; | |
1830 | ||
1831 | op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, | |
1832 | 0, 0, LUSTRE_OPC_ANY, | |
1833 | NULL); | |
1834 | if (IS_ERR(op_data)) | |
0a3bdb00 | 1835 | return PTR_ERR(op_data); |
d7e09d03 PT |
1836 | |
1837 | op_data->op_valid = OBD_MD_FLFLAGS; | |
1838 | rc = md_getattr(sbi->ll_md_exp, op_data, &req); | |
1839 | ll_finish_md_op_data(op_data); | |
1840 | if (rc) { | |
1841 | CERROR("failure %d inode %lu\n", rc, inode->i_ino); | |
0a3bdb00 | 1842 | return -abs(rc); |
d7e09d03 PT |
1843 | } |
1844 | ||
1845 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
1846 | ||
1847 | flags = body->flags; | |
1848 | ||
1849 | ptlrpc_req_finished(req); | |
1850 | ||
0a3bdb00 | 1851 | return put_user(flags, (int *)arg); |
d7e09d03 PT |
1852 | } |
1853 | case FSFILT_IOC_SETFLAGS: { | |
1854 | struct lov_stripe_md *lsm; | |
1855 | struct obd_info oinfo = { { { 0 } } }; | |
1856 | struct md_op_data *op_data; | |
1857 | ||
1858 | if (get_user(flags, (int *)arg)) | |
0a3bdb00 | 1859 | return -EFAULT; |
d7e09d03 PT |
1860 | |
1861 | op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, | |
1862 | LUSTRE_OPC_ANY, NULL); | |
1863 | if (IS_ERR(op_data)) | |
0a3bdb00 | 1864 | return PTR_ERR(op_data); |
d7e09d03 PT |
1865 | |
1866 | ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags; | |
1867 | op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG; | |
1868 | rc = md_setattr(sbi->ll_md_exp, op_data, | |
1869 | NULL, 0, NULL, 0, &req, NULL); | |
1870 | ll_finish_md_op_data(op_data); | |
1871 | ptlrpc_req_finished(req); | |
1872 | if (rc) | |
0a3bdb00 | 1873 | return rc; |
d7e09d03 PT |
1874 | |
1875 | inode->i_flags = ll_ext_to_inode_flags(flags); | |
1876 | ||
1877 | lsm = ccc_inode_lsm_get(inode); | |
5dd16419 JX |
1878 | if (!lsm_has_objects(lsm)) { |
1879 | ccc_inode_lsm_put(inode, lsm); | |
0a3bdb00 | 1880 | return 0; |
5dd16419 | 1881 | } |
d7e09d03 PT |
1882 | |
1883 | OBDO_ALLOC(oinfo.oi_oa); | |
1884 | if (!oinfo.oi_oa) { | |
1885 | ccc_inode_lsm_put(inode, lsm); | |
0a3bdb00 | 1886 | return -ENOMEM; |
d7e09d03 PT |
1887 | } |
1888 | oinfo.oi_md = lsm; | |
1889 | oinfo.oi_oa->o_oi = lsm->lsm_oi; | |
1890 | oinfo.oi_oa->o_flags = flags; | |
1891 | oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | | |
1892 | OBD_MD_FLGROUP; | |
1893 | oinfo.oi_capa = ll_mdscapa_get(inode); | |
1894 | obdo_set_parent_fid(oinfo.oi_oa, &ll_i2info(inode)->lli_fid); | |
1895 | rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL); | |
1896 | capa_put(oinfo.oi_capa); | |
1897 | OBDO_FREE(oinfo.oi_oa); | |
1898 | ccc_inode_lsm_put(inode, lsm); | |
1899 | ||
1900 | if (rc && rc != -EPERM && rc != -EACCES) | |
1901 | CERROR("osc_setattr_async fails: rc = %d\n", rc); | |
1902 | ||
0a3bdb00 | 1903 | return rc; |
d7e09d03 PT |
1904 | } |
1905 | default: | |
0a3bdb00 | 1906 | return -ENOSYS; |
d7e09d03 PT |
1907 | } |
1908 | ||
0a3bdb00 | 1909 | return 0; |
d7e09d03 PT |
1910 | } |
1911 | ||
1912 | int ll_flush_ctx(struct inode *inode) | |
1913 | { | |
1914 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
1915 | ||
4b1a25f0 PT |
1916 | CDEBUG(D_SEC, "flush context for user %d\n", |
1917 | from_kuid(&init_user_ns, current_uid())); | |
d7e09d03 PT |
1918 | |
1919 | obd_set_info_async(NULL, sbi->ll_md_exp, | |
1920 | sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX, | |
1921 | 0, NULL, NULL); | |
1922 | obd_set_info_async(NULL, sbi->ll_dt_exp, | |
1923 | sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX, | |
1924 | 0, NULL, NULL); | |
1925 | return 0; | |
1926 | } | |
1927 | ||
1928 | /* umount -f client means force down, don't save state */ | |
1929 | void ll_umount_begin(struct super_block *sb) | |
1930 | { | |
1931 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1932 | struct obd_device *obd; | |
1933 | struct obd_ioctl_data *ioc_data; | |
d7e09d03 PT |
1934 | |
1935 | CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb, | |
1936 | sb->s_count, atomic_read(&sb->s_active)); | |
1937 | ||
1938 | obd = class_exp2obd(sbi->ll_md_exp); | |
1939 | if (obd == NULL) { | |
55f5a824 | 1940 | CERROR("Invalid MDC connection handle %#llx\n", |
d7e09d03 | 1941 | sbi->ll_md_exp->exp_handle.h_cookie); |
d7e09d03 PT |
1942 | return; |
1943 | } | |
1944 | obd->obd_force = 1; | |
1945 | ||
1946 | obd = class_exp2obd(sbi->ll_dt_exp); | |
1947 | if (obd == NULL) { | |
55f5a824 | 1948 | CERROR("Invalid LOV connection handle %#llx\n", |
d7e09d03 | 1949 | sbi->ll_dt_exp->exp_handle.h_cookie); |
d7e09d03 PT |
1950 | return; |
1951 | } | |
1952 | obd->obd_force = 1; | |
1953 | ||
496a51bd | 1954 | ioc_data = kzalloc(sizeof(*ioc_data), GFP_NOFS); |
d7e09d03 PT |
1955 | if (ioc_data) { |
1956 | obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp, | |
ec83e611 | 1957 | sizeof(*ioc_data), ioc_data, NULL); |
d7e09d03 PT |
1958 | |
1959 | obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp, | |
ec83e611 | 1960 | sizeof(*ioc_data), ioc_data, NULL); |
d7e09d03 PT |
1961 | |
1962 | OBD_FREE_PTR(ioc_data); | |
1963 | } | |
1964 | ||
d7e09d03 PT |
1965 | /* Really, we'd like to wait until there are no requests outstanding, |
1966 | * and then continue. For now, we just invalidate the requests, | |
1967 | * schedule() and sleep one second if needed, and hope. | |
1968 | */ | |
1969 | schedule(); | |
d7e09d03 PT |
1970 | } |
1971 | ||
1972 | int ll_remount_fs(struct super_block *sb, int *flags, char *data) | |
1973 | { | |
1974 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1975 | char *profilenm = get_profile_name(sb); | |
1976 | int err; | |
1977 | __u32 read_only; | |
1978 | ||
1979 | if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { | |
1980 | read_only = *flags & MS_RDONLY; | |
1981 | err = obd_set_info_async(NULL, sbi->ll_md_exp, | |
1982 | sizeof(KEY_READ_ONLY), | |
1983 | KEY_READ_ONLY, sizeof(read_only), | |
1984 | &read_only, NULL); | |
1985 | if (err) { | |
1986 | LCONSOLE_WARN("Failed to remount %s %s (%d)\n", | |
1987 | profilenm, read_only ? | |
1988 | "read-only" : "read-write", err); | |
1989 | return err; | |
1990 | } | |
1991 | ||
1992 | if (read_only) | |
1993 | sb->s_flags |= MS_RDONLY; | |
1994 | else | |
1995 | sb->s_flags &= ~MS_RDONLY; | |
1996 | ||
1997 | if (sbi->ll_flags & LL_SBI_VERBOSE) | |
1998 | LCONSOLE_WARN("Remounted %s %s\n", profilenm, | |
1999 | read_only ? "read-only" : "read-write"); | |
2000 | } | |
2001 | return 0; | |
2002 | } | |
2003 | ||
2004 | int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req, | |
2005 | struct super_block *sb, struct lookup_intent *it) | |
2006 | { | |
2007 | struct ll_sb_info *sbi = NULL; | |
2008 | struct lustre_md md; | |
2009 | int rc; | |
d7e09d03 PT |
2010 | |
2011 | LASSERT(*inode || sb); | |
2012 | sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode); | |
2013 | rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp, | |
2014 | sbi->ll_md_exp, &md); | |
2015 | if (rc) | |
0a3bdb00 | 2016 | return rc; |
d7e09d03 PT |
2017 | |
2018 | if (*inode) { | |
2019 | ll_update_inode(*inode, &md); | |
2020 | } else { | |
2021 | LASSERT(sb != NULL); | |
2022 | ||
2023 | /* | |
2024 | * At this point server returns to client's same fid as client | |
2025 | * generated for creating. So using ->fid1 is okay here. | |
2026 | */ | |
2027 | LASSERT(fid_is_sane(&md.body->fid1)); | |
2028 | ||
2029 | *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1, | |
c1e2699d | 2030 | sbi->ll_flags & LL_SBI_32BIT_API), |
d7e09d03 PT |
2031 | &md); |
2032 | if (*inode == NULL || IS_ERR(*inode)) { | |
2033 | #ifdef CONFIG_FS_POSIX_ACL | |
2034 | if (md.posix_acl) { | |
2035 | posix_acl_release(md.posix_acl); | |
2036 | md.posix_acl = NULL; | |
2037 | } | |
2038 | #endif | |
2039 | rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM; | |
2040 | *inode = NULL; | |
2041 | CERROR("new_inode -fatal: rc %d\n", rc); | |
34e1f2bb | 2042 | goto out; |
d7e09d03 PT |
2043 | } |
2044 | } | |
2045 | ||
2046 | /* Handling piggyback layout lock. | |
2047 | * Layout lock can be piggybacked by getattr and open request. | |
2048 | * The lsm can be applied to inode only if it comes with a layout lock | |
2049 | * otherwise correct layout may be overwritten, for example: | |
2050 | * 1. proc1: mdt returns a lsm but not granting layout | |
2051 | * 2. layout was changed by another client | |
2052 | * 3. proc2: refresh layout and layout lock granted | |
2053 | * 4. proc1: to apply a stale layout */ | |
2054 | if (it != NULL && it->d.lustre.it_lock_mode != 0) { | |
2055 | struct lustre_handle lockh; | |
2056 | struct ldlm_lock *lock; | |
2057 | ||
2058 | lockh.cookie = it->d.lustre.it_lock_handle; | |
2059 | lock = ldlm_handle2lock(&lockh); | |
2060 | LASSERT(lock != NULL); | |
2061 | if (ldlm_has_layout(lock)) { | |
2062 | struct cl_object_conf conf; | |
2063 | ||
2064 | memset(&conf, 0, sizeof(conf)); | |
2065 | conf.coc_opc = OBJECT_CONF_SET; | |
2066 | conf.coc_inode = *inode; | |
2067 | conf.coc_lock = lock; | |
2068 | conf.u.coc_md = &md; | |
2069 | (void)ll_layout_conf(*inode, &conf); | |
2070 | } | |
2071 | LDLM_LOCK_PUT(lock); | |
2072 | } | |
2073 | ||
2074 | out: | |
2075 | if (md.lsm != NULL) | |
2076 | obd_free_memmd(sbi->ll_dt_exp, &md.lsm); | |
2077 | md_free_lustre_md(sbi->ll_md_exp, &md); | |
0a3bdb00 | 2078 | return rc; |
d7e09d03 PT |
2079 | } |
2080 | ||
2081 | int ll_obd_statfs(struct inode *inode, void *arg) | |
2082 | { | |
2083 | struct ll_sb_info *sbi = NULL; | |
2084 | struct obd_export *exp; | |
2085 | char *buf = NULL; | |
2086 | struct obd_ioctl_data *data = NULL; | |
2087 | __u32 type; | |
2088 | __u32 flags; | |
2089 | int len = 0, rc; | |
2090 | ||
c650ba73 TR |
2091 | if (!inode) { |
2092 | rc = -EINVAL; | |
2093 | goto out_statfs; | |
2094 | } | |
2095 | ||
2096 | sbi = ll_i2sbi(inode); | |
2097 | if (!sbi) { | |
34e1f2bb JL |
2098 | rc = -EINVAL; |
2099 | goto out_statfs; | |
2100 | } | |
d7e09d03 PT |
2101 | |
2102 | rc = obd_ioctl_getdata(&buf, &len, arg); | |
2103 | if (rc) | |
34e1f2bb | 2104 | goto out_statfs; |
d7e09d03 | 2105 | |
bdbb0512 | 2106 | data = (void *)buf; |
d7e09d03 | 2107 | if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 || |
34e1f2bb JL |
2108 | !data->ioc_pbuf1 || !data->ioc_pbuf2) { |
2109 | rc = -EINVAL; | |
2110 | goto out_statfs; | |
2111 | } | |
d7e09d03 PT |
2112 | |
2113 | if (data->ioc_inllen1 != sizeof(__u32) || | |
2114 | data->ioc_inllen2 != sizeof(__u32) || | |
2115 | data->ioc_plen1 != sizeof(struct obd_statfs) || | |
34e1f2bb JL |
2116 | data->ioc_plen2 != sizeof(struct obd_uuid)) { |
2117 | rc = -EINVAL; | |
2118 | goto out_statfs; | |
2119 | } | |
d7e09d03 PT |
2120 | |
2121 | memcpy(&type, data->ioc_inlbuf1, sizeof(__u32)); | |
2122 | if (type & LL_STATFS_LMV) | |
2123 | exp = sbi->ll_md_exp; | |
2124 | else if (type & LL_STATFS_LOV) | |
2125 | exp = sbi->ll_dt_exp; | |
34e1f2bb JL |
2126 | else { |
2127 | rc = -ENODEV; | |
2128 | goto out_statfs; | |
2129 | } | |
d7e09d03 PT |
2130 | |
2131 | flags = (type & LL_STATFS_NODELAY) ? OBD_STATFS_NODELAY : 0; | |
2132 | rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, &flags); | |
2133 | if (rc) | |
34e1f2bb | 2134 | goto out_statfs; |
d7e09d03 PT |
2135 | out_statfs: |
2136 | if (buf) | |
2137 | obd_ioctl_freedata(buf, len); | |
2138 | return rc; | |
2139 | } | |
2140 | ||
2141 | int ll_process_config(struct lustre_cfg *lcfg) | |
2142 | { | |
2143 | char *ptr; | |
2144 | void *sb; | |
2145 | struct lprocfs_static_vars lvars; | |
2146 | unsigned long x; | |
2147 | int rc = 0; | |
2148 | ||
2149 | lprocfs_llite_init_vars(&lvars); | |
2150 | ||
2151 | /* The instance name contains the sb: lustre-client-aacfe000 */ | |
2152 | ptr = strrchr(lustre_cfg_string(lcfg, 0), '-'); | |
2153 | if (!ptr || !*(++ptr)) | |
2154 | return -EINVAL; | |
2155 | if (sscanf(ptr, "%lx", &x) != 1) | |
2156 | return -EINVAL; | |
2157 | sb = (void *)x; | |
2158 | /* This better be a real Lustre superblock! */ | |
2159 | LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC); | |
2160 | ||
2161 | /* Note we have not called client_common_fill_super yet, so | |
2162 | proc fns must be able to handle that! */ | |
2163 | rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars, | |
2164 | lcfg, sb); | |
2165 | if (rc > 0) | |
2166 | rc = 0; | |
fbe7c6c7 | 2167 | return rc; |
d7e09d03 PT |
2168 | } |
2169 | ||
2170 | /* this function prepares md_op_data hint for passing ot down to MD stack. */ | |
aff9d8e8 | 2171 | struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data, |
d7e09d03 PT |
2172 | struct inode *i1, struct inode *i2, |
2173 | const char *name, int namelen, | |
2174 | int mode, __u32 opc, void *data) | |
2175 | { | |
2176 | LASSERT(i1 != NULL); | |
2177 | ||
2178 | if (namelen > ll_i2sbi(i1)->ll_namelen) | |
2179 | return ERR_PTR(-ENAMETOOLONG); | |
2180 | ||
2181 | if (op_data == NULL) | |
496a51bd | 2182 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
d7e09d03 PT |
2183 | |
2184 | if (op_data == NULL) | |
2185 | return ERR_PTR(-ENOMEM); | |
2186 | ||
2187 | ll_i2gids(op_data->op_suppgids, i1, i2); | |
2188 | op_data->op_fid1 = *ll_inode2fid(i1); | |
2189 | op_data->op_capa1 = ll_mdscapa_get(i1); | |
2190 | ||
2191 | if (i2) { | |
2192 | op_data->op_fid2 = *ll_inode2fid(i2); | |
2193 | op_data->op_capa2 = ll_mdscapa_get(i2); | |
2194 | } else { | |
2195 | fid_zero(&op_data->op_fid2); | |
2196 | op_data->op_capa2 = NULL; | |
2197 | } | |
2198 | ||
2199 | op_data->op_name = name; | |
2200 | op_data->op_namelen = namelen; | |
2201 | op_data->op_mode = mode; | |
7264b8a5 | 2202 | op_data->op_mod_time = get_seconds(); |
4b1a25f0 PT |
2203 | op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid()); |
2204 | op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid()); | |
d7e09d03 PT |
2205 | op_data->op_cap = cfs_curproc_cap_pack(); |
2206 | op_data->op_bias = 0; | |
2207 | op_data->op_cli_flags = 0; | |
2208 | if ((opc == LUSTRE_OPC_CREATE) && (name != NULL) && | |
2209 | filename_is_volatile(name, namelen, NULL)) | |
2210 | op_data->op_bias |= MDS_CREATE_VOLATILE; | |
2211 | op_data->op_opc = opc; | |
2212 | op_data->op_mds = 0; | |
2213 | op_data->op_data = data; | |
2214 | ||
2215 | /* If the file is being opened after mknod() (normally due to NFS) | |
2216 | * try to use the default stripe data from parent directory for | |
2217 | * allocating OST objects. Try to pass the parent FID to MDS. */ | |
2218 | if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) && | |
2219 | !ll_i2info(i2)->lli_has_smd) { | |
2220 | struct ll_inode_info *lli = ll_i2info(i2); | |
2221 | ||
2222 | spin_lock(&lli->lli_lock); | |
2223 | if (likely(!lli->lli_has_smd && !fid_is_zero(&lli->lli_pfid))) | |
2224 | op_data->op_fid1 = lli->lli_pfid; | |
2225 | spin_unlock(&lli->lli_lock); | |
2226 | /** We ignore parent's capability temporary. */ | |
2227 | } | |
2228 | ||
2229 | /* When called by ll_setattr_raw, file is i1. */ | |
2230 | if (LLIF_DATA_MODIFIED & ll_i2info(i1)->lli_flags) | |
2231 | op_data->op_bias |= MDS_DATA_MODIFIED; | |
2232 | ||
2233 | return op_data; | |
2234 | } | |
2235 | ||
2236 | void ll_finish_md_op_data(struct md_op_data *op_data) | |
2237 | { | |
2238 | capa_put(op_data->op_capa1); | |
2239 | capa_put(op_data->op_capa2); | |
2240 | OBD_FREE_PTR(op_data); | |
2241 | } | |
2242 | ||
2243 | int ll_show_options(struct seq_file *seq, struct dentry *dentry) | |
2244 | { | |
2245 | struct ll_sb_info *sbi; | |
2246 | ||
2247 | LASSERT((seq != NULL) && (dentry != NULL)); | |
2248 | sbi = ll_s2sbi(dentry->d_sb); | |
2249 | ||
2250 | if (sbi->ll_flags & LL_SBI_NOLCK) | |
2251 | seq_puts(seq, ",nolock"); | |
2252 | ||
2253 | if (sbi->ll_flags & LL_SBI_FLOCK) | |
2254 | seq_puts(seq, ",flock"); | |
2255 | ||
2256 | if (sbi->ll_flags & LL_SBI_LOCALFLOCK) | |
2257 | seq_puts(seq, ",localflock"); | |
2258 | ||
2259 | if (sbi->ll_flags & LL_SBI_USER_XATTR) | |
2260 | seq_puts(seq, ",user_xattr"); | |
2261 | ||
2262 | if (sbi->ll_flags & LL_SBI_LAZYSTATFS) | |
2263 | seq_puts(seq, ",lazystatfs"); | |
2264 | ||
2265 | if (sbi->ll_flags & LL_SBI_USER_FID2PATH) | |
2266 | seq_puts(seq, ",user_fid2path"); | |
2267 | ||
0a3bdb00 | 2268 | return 0; |
d7e09d03 PT |
2269 | } |
2270 | ||
2271 | /** | |
2272 | * Get obd name by cmd, and copy out to user space | |
2273 | */ | |
2274 | int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg) | |
2275 | { | |
2276 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
2277 | struct obd_device *obd; | |
d7e09d03 PT |
2278 | |
2279 | if (cmd == OBD_IOC_GETDTNAME) | |
2280 | obd = class_exp2obd(sbi->ll_dt_exp); | |
2281 | else if (cmd == OBD_IOC_GETMDNAME) | |
2282 | obd = class_exp2obd(sbi->ll_md_exp); | |
2283 | else | |
0a3bdb00 | 2284 | return -EINVAL; |
d7e09d03 PT |
2285 | |
2286 | if (!obd) | |
0a3bdb00 | 2287 | return -ENOENT; |
d7e09d03 PT |
2288 | |
2289 | if (copy_to_user((void *)arg, obd->obd_name, | |
2290 | strlen(obd->obd_name) + 1)) | |
0a3bdb00 | 2291 | return -EFAULT; |
d7e09d03 | 2292 | |
0a3bdb00 | 2293 | return 0; |
d7e09d03 PT |
2294 | } |
2295 | ||
2296 | /** | |
2297 | * Get lustre file system name by \a sbi. If \a buf is provided(non-NULL), the | |
2298 | * fsname will be returned in this buffer; otherwise, a static buffer will be | |
2299 | * used to store the fsname and returned to caller. | |
2300 | */ | |
2301 | char *ll_get_fsname(struct super_block *sb, char *buf, int buflen) | |
2302 | { | |
2303 | static char fsname_static[MTI_NAME_MAXLEN]; | |
2304 | struct lustre_sb_info *lsi = s2lsi(sb); | |
2305 | char *ptr; | |
2306 | int len; | |
2307 | ||
2308 | if (buf == NULL) { | |
2309 | /* this means the caller wants to use static buffer | |
2310 | * and it doesn't care about race. Usually this is | |
2311 | * in error reporting path */ | |
2312 | buf = fsname_static; | |
2313 | buflen = sizeof(fsname_static); | |
2314 | } | |
2315 | ||
2316 | len = strlen(lsi->lsi_lmd->lmd_profile); | |
2317 | ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-'); | |
2318 | if (ptr && (strcmp(ptr, "-client") == 0)) | |
2319 | len -= 7; | |
2320 | ||
2321 | if (unlikely(len >= buflen)) | |
2322 | len = buflen - 1; | |
2323 | strncpy(buf, lsi->lsi_lmd->lmd_profile, len); | |
2324 | buf[len] = '\0'; | |
2325 | ||
2326 | return buf; | |
2327 | } | |
2328 | ||
d7e09d03 PT |
2329 | void ll_dirty_page_discard_warn(struct page *page, int ioret) |
2330 | { | |
2331 | char *buf, *path = NULL; | |
2332 | struct dentry *dentry = NULL; | |
2333 | struct ccc_object *obj = cl_inode2ccc(page->mapping->host); | |
2334 | ||
2335 | /* this can be called inside spin lock so use GFP_ATOMIC. */ | |
2336 | buf = (char *)__get_free_page(GFP_ATOMIC); | |
2337 | if (buf != NULL) { | |
2338 | dentry = d_find_alias(page->mapping->host); | |
2339 | if (dentry != NULL) | |
1ad581eb | 2340 | path = dentry_path_raw(dentry, buf, PAGE_SIZE); |
d7e09d03 PT |
2341 | } |
2342 | ||
73b89907 | 2343 | CDEBUG(D_WARNING, |
2d00bd17 JP |
2344 | "%s: dirty page discard: %s/fid: " DFID "/%s may get corrupted (rc %d)\n", |
2345 | ll_get_fsname(page->mapping->host->i_sb, NULL, 0), | |
73b89907 RH |
2346 | s2lsi(page->mapping->host->i_sb)->lsi_lmd->lmd_dev, |
2347 | PFID(&obj->cob_header.coh_lu.loh_fid), | |
2348 | (path && !IS_ERR(path)) ? path : "", ioret); | |
d7e09d03 PT |
2349 | |
2350 | if (dentry != NULL) | |
2351 | dput(dentry); | |
2352 | ||
2353 | if (buf != NULL) | |
2354 | free_page((unsigned long)buf); | |
2355 | } |