4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/utils/liblustreapi.c
34 * Author: Peter J. Braam <braam@clusterfs.com>
35 * Author: Phil Schwan <phil@clusterfs.com>
36 * Author: Robert Read <rread@clusterfs.com>
50 #include <sys/ioctl.h>
57 #include <sys/statfs.h>
58 #include <sys/syscall.h>
60 #include <sys/types.h>
61 #include <sys/xattr.h>
62 #include <sys/sysmacros.h>
65 #include <libgen.h> /* for dirname() */
66 #include <linux/limits.h>
67 #ifdef HAVE_LINUX_UNISTD_H
68 #include <linux/unistd.h>
76 #include <libcfs/util/ioctl.h>
77 #include <libcfs/util/param.h>
78 #include <libcfs/util/string.h>
79 #include <linux/lnet/lnetctl.h>
80 #include <lustre/lustreapi.h>
81 #include <linux/lustre/lustre_ostid.h>
82 #include <linux/lustre/lustre_ioctl.h>
83 #include "lustreapi_internal.h"
86 static int llapi_msg_level = LLAPI_MSG_MAX;
87 const char *liblustreapi_cmd;
89 char *mdt_hash_name[] = { "none",
90 LMV_HASH_NAME_ALL_CHARS,
91 LMV_HASH_NAME_FNV_1A_64,
95 struct lustre_foreign_type lu_foreign_types[] = {
96 {.lft_type = LU_FOREIGN_TYPE_NONE, .lft_name = "none"},
97 {.lft_type = LU_FOREIGN_TYPE_DAOS, .lft_name = "daos"},
98 /* must be the last element */
99 {.lft_type = LU_FOREIGN_TYPE_UNKNOWN, .lft_name = NULL}
100 /* array max dimension must be <= UINT32_MAX */
103 void llapi_msg_set_level(int level)
105 /* ensure level is in the good range */
106 if (level < LLAPI_MSG_OFF)
107 llapi_msg_level = LLAPI_MSG_OFF;
108 else if (level > LLAPI_MSG_MAX)
109 llapi_msg_level = LLAPI_MSG_MAX;
111 llapi_msg_level = level;
114 int llapi_msg_get_level(void)
116 return llapi_msg_level;
119 void llapi_set_command_name(const char *cmd)
121 liblustreapi_cmd = cmd;
124 void llapi_clear_command_name(void)
126 liblustreapi_cmd = NULL;
129 static void error_callback_default(enum llapi_message_level level, int err,
130 const char *fmt, va_list ap)
132 bool has_nl = strchr(fmt, '\n') != NULL;
134 if (liblustreapi_cmd != NULL)
135 fprintf(stderr, "%s %s: ", program_invocation_short_name,
138 fprintf(stderr, "%s: ", program_invocation_short_name);
141 if (level & LLAPI_MSG_NO_ERRNO) {
142 vfprintf(stderr, fmt, ap);
144 fprintf(stderr, "\n");
149 * Remove trailing linefeed so error string can be appended.
150 * @fmt is a const string, so we can't modify it directly.
152 if (has_nl && (newfmt = strdup(fmt)))
153 *strrchr(newfmt, '\n') = '\0';
155 newfmt = (char *)fmt;
157 vfprintf(stderr, newfmt, ap);
160 fprintf(stderr, ": %s (%d)\n", strerror(err), err);
164 static void info_callback_default(enum llapi_message_level level, int err,
165 const char *fmt, va_list ap)
168 if (liblustreapi_cmd != NULL) {
169 fprintf(stdout, "%s %s: ",
170 program_invocation_short_name,
173 fprintf(stdout, "%s: ", program_invocation_short_name);
176 vfprintf(stdout, fmt, ap);
179 static llapi_log_callback_t llapi_error_callback = error_callback_default;
180 static llapi_log_callback_t llapi_info_callback = info_callback_default;
183 /* llapi_error will preserve errno */
184 void llapi_error(enum llapi_message_level level, int err, const char *fmt, ...)
187 int tmp_errno = errno;
189 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
193 llapi_error_callback(level, abs(err), fmt, args);
198 /* llapi_printf will preserve errno */
199 void llapi_printf(enum llapi_message_level level, const char *fmt, ...)
202 int tmp_errno = errno;
204 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
208 llapi_info_callback(level, 0, fmt, args);
214 * Set a custom error logging function. Passing in NULL will reset the logging
215 * callback to its default value.
217 * This function returns the value of the old callback.
219 llapi_log_callback_t llapi_error_callback_set(llapi_log_callback_t cb)
221 llapi_log_callback_t old = llapi_error_callback;
224 llapi_error_callback = cb;
226 llapi_error_callback = error_callback_default;
232 * Set a custom info logging function. Passing in NULL will reset the logging
233 * callback to its default value.
235 * This function returns the value of the old callback.
237 llapi_log_callback_t llapi_info_callback_set(llapi_log_callback_t cb)
239 llapi_log_callback_t old = llapi_info_callback;
242 llapi_info_callback = cb;
244 llapi_info_callback = info_callback_default;
250 * size_units is to be initialized (or zeroed) by caller.
252 int llapi_parse_size(const char *optarg, unsigned long long *size,
253 unsigned long long *size_units, int bytes_spec)
256 char *argbuf = (char *)optarg;
257 unsigned long long frac = 0, frac_d = 1;
259 if (strncmp(optarg, "-", 1) == 0)
262 if (*size_units == 0)
265 *size = strtoull(argbuf, &end, 0);
266 if (end != NULL && *end == '.') {
270 frac = strtoull(argbuf, &end, 10);
271 /* count decimal places */
272 for (i = 0; i < (end - argbuf); i++)
277 if ((*end == 'b') && *(end + 1) == '\0' &&
278 (*size & (~0ULL << (64 - 9))) == 0 &&
280 *size_units = 1 << 9;
281 } else if ((*end == 'b') &&
282 *(end + 1) == '\0' &&
285 } else if ((*end == 'k' || *end == 'K') &&
286 *(end + 1) == '\0' &&
287 (*size & (~0ULL << (64 - 10))) == 0) {
288 *size_units = 1 << 10;
289 } else if ((*end == 'm' || *end == 'M') &&
290 *(end + 1) == '\0' &&
291 (*size & (~0ULL << (64 - 20))) == 0) {
292 *size_units = 1 << 20;
293 } else if ((*end == 'g' || *end == 'G') &&
294 *(end + 1) == '\0' &&
295 (*size & (~0ULL << (64 - 30))) == 0) {
296 *size_units = 1 << 30;
297 } else if ((*end == 't' || *end == 'T') &&
298 *(end + 1) == '\0' &&
299 (*size & (~0ULL << (64 - 40))) == 0) {
300 *size_units = 1ULL << 40;
301 } else if ((*end == 'p' || *end == 'P') &&
302 *(end + 1) == '\0' &&
303 (*size & (~0ULL << (64 - 50))) == 0) {
304 *size_units = 1ULL << 50;
305 } else if ((*end == 'e' || *end == 'E') &&
306 *(end + 1) == '\0' &&
307 (*size & (~0ULL << (64 - 60))) == 0) {
308 *size_units = 1ULL << 60;
313 *size = *size * *size_units + frac * *size_units / frac_d;
318 int llapi_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max_len)
320 struct obd_ioctl_data *overlay;
323 data->ioc_len = obd_ioctl_packlen(data);
324 data->ioc_version = OBD_IOCTL_VERSION;
326 if (*pbuf != NULL && data->ioc_len > max_len) {
327 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
328 "pbuf = %p, ioc_len = %u, max_len = %d",
329 *pbuf, data->ioc_len, max_len);
334 *pbuf = malloc(data->ioc_len);
339 overlay = (struct obd_ioctl_data *)*pbuf;
340 memcpy(*pbuf, data, sizeof(*data));
342 ptr = overlay->ioc_bulk;
343 if (data->ioc_inlbuf1) {
344 memcpy(ptr, data->ioc_inlbuf1, data->ioc_inllen1);
345 ptr += __ALIGN_KERNEL(data->ioc_inllen1, 8);
348 if (data->ioc_inlbuf2) {
349 memcpy(ptr, data->ioc_inlbuf2, data->ioc_inllen2);
350 ptr += __ALIGN_KERNEL(data->ioc_inllen2, 8);
353 if (data->ioc_inlbuf3) {
354 memcpy(ptr, data->ioc_inlbuf3, data->ioc_inllen3);
355 ptr += __ALIGN_KERNEL(data->ioc_inllen3, 8);
358 if (data->ioc_inlbuf4) {
359 memcpy(ptr, data->ioc_inlbuf4, data->ioc_inllen4);
360 ptr += __ALIGN_KERNEL(data->ioc_inllen4, 8);
366 int llapi_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len)
368 struct obd_ioctl_data *overlay;
374 overlay = (struct obd_ioctl_data *)pbuf;
376 /* Preserve the caller's buffer pointers */
377 overlay->ioc_inlbuf1 = data->ioc_inlbuf1;
378 overlay->ioc_inlbuf2 = data->ioc_inlbuf2;
379 overlay->ioc_inlbuf3 = data->ioc_inlbuf3;
380 overlay->ioc_inlbuf4 = data->ioc_inlbuf4;
382 memcpy(data, pbuf, sizeof(*data));
384 ptr = overlay->ioc_bulk;
385 if (data->ioc_inlbuf1) {
386 memcpy(data->ioc_inlbuf1, ptr, data->ioc_inllen1);
387 ptr += __ALIGN_KERNEL(data->ioc_inllen1, 8);
390 if (data->ioc_inlbuf2) {
391 memcpy(data->ioc_inlbuf2, ptr, data->ioc_inllen2);
392 ptr += __ALIGN_KERNEL(data->ioc_inllen2, 8);
395 if (data->ioc_inlbuf3) {
396 memcpy(data->ioc_inlbuf3, ptr, data->ioc_inllen3);
397 ptr += __ALIGN_KERNEL(data->ioc_inllen3, 8);
400 if (data->ioc_inlbuf4) {
401 memcpy(data->ioc_inlbuf4, ptr, data->ioc_inllen4);
402 ptr += __ALIGN_KERNEL(data->ioc_inllen4, 8);
408 /* XXX: llapi_xxx() functions return negative values upon failure */
410 int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
411 int stripe_count, int stripe_pattern)
413 static int page_size;
416 if (page_size == 0) {
418 * 64 KB is the largest common page size (on ia64/PPC/ARM),
419 * but check the local page size just in case. The page_size
420 * will not change for the lifetime of this process at least.
422 page_size = LOV_MIN_STRIPE_SIZE;
423 if (getpagesize() > page_size) {
424 page_size = getpagesize();
425 llapi_err_noerrno(LLAPI_MSG_WARN,
426 "warning: page size (%u) larger than expected (%u)",
427 page_size, LOV_MIN_STRIPE_SIZE);
430 if (!llapi_stripe_size_is_aligned(stripe_size)) {
432 llapi_error(LLAPI_MSG_ERROR, rc,
433 "error: bad stripe_size %llu, must be an even multiple of %d bytes",
434 (unsigned long long)stripe_size, page_size);
437 if (!llapi_stripe_index_is_valid(stripe_offset)) {
439 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
443 if (!llapi_stripe_count_is_valid(stripe_count)) {
445 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
449 if (llapi_stripe_size_is_too_big(stripe_size)) {
451 llapi_error(LLAPI_MSG_ERROR, rc,
452 "error: stripe size '%llu' over 4GB limit",
453 (unsigned long long)stripe_size);
462 int llapi_dir_stripe_limit_check(int stripe_offset, int stripe_count,
467 if (!llapi_dir_stripe_index_is_valid(stripe_offset)) {
469 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
473 if (!llapi_dir_stripe_count_is_valid(stripe_count)) {
475 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
480 if (!llapi_dir_hash_type_is_valid(hash_type)) {
482 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad hash type %d",
490 * Trim a trailing newline from a string, if it exists.
492 int llapi_chomp_string(char *buf)
508 * Wrapper to grab parameter settings for lov.*-clilov-*.* values
510 static int get_param_lov(const char *path, const char *param,
511 char *buf, size_t buf_size)
513 struct obd_uuid uuid;
516 rc = llapi_file_get_lov_uuid(path, &uuid);
520 return get_lustre_param_value("lov", uuid.uuid, FILTER_BY_EXACT, param,
525 * Wrapper to grab parameter settings for lmv.*-clilov-*.* values
527 static int get_param_lmv(const char *path, const char *param,
528 char *buf, size_t buf_size)
530 struct obd_uuid uuid;
533 rc = llapi_file_get_lmv_uuid(path, &uuid);
537 return get_lustre_param_value("lmv", uuid.uuid, FILTER_BY_EXACT, param,
541 static int get_mds_md_size(const char *path)
543 int md_size = lov_user_md_size(LOV_MAX_STRIPE_COUNT, LOV_USER_MAGIC_V3);
546 * Rather than open the file and do the ioctl to get the
547 * instance name and close the file and search for the param
548 * file and open the param file and read the param file and
549 * parse the value and close the param file, let's just return
550 * a large enough value. It's 2020, RAM is cheap and this is
554 if (md_size < XATTR_SIZE_MAX)
555 md_size = XATTR_SIZE_MAX;
560 int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize)
562 return get_param_lmv(path, "uuid", buf, bufsize);
566 * Open a Lustre file.
568 * \param name the name of the file to be opened
569 * \param flags access mode, see flags in open(2)
570 * \param mode permission of the file if it is created, see mode in open(2)
571 * \param param stripe pattern of the newly created file
573 * \retval file descriptor of opened file
574 * \retval negative errno on failure
576 int llapi_file_open_param(const char *name, int flags, mode_t mode,
577 const struct llapi_stripe_param *param)
579 char fsname[MAX_OBD_NAME + 1] = { 0 };
580 char *pool_name = param->lsp_pool;
581 struct lov_user_md *lum = NULL;
582 size_t lum_size = sizeof(*lum);
585 /* Make sure we are on a Lustre file system */
586 rc = llapi_search_fsname(name, fsname);
588 llapi_error(LLAPI_MSG_ERROR, rc,
589 "'%s' is not on a Lustre filesystem",
594 /* Check if the stripe pattern is sane. */
595 rc = llapi_stripe_limit_check(param->lsp_stripe_size,
596 param->lsp_stripe_offset,
597 param->lsp_stripe_count,
598 param->lsp_stripe_pattern);
602 /* Make sure we have a good pool */
603 if (pool_name != NULL) {
605 * in case user gives the full pool name <fsname>.<poolname>,
608 char *ptr = strchr(pool_name, '.');
612 if (strcmp(pool_name, fsname) != 0) {
614 llapi_err_noerrno(LLAPI_MSG_ERROR,
615 "Pool '%s' is not on filesystem '%s'",
622 /* Make sure the pool exists and is non-empty */
623 rc = llapi_search_ost(fsname, pool_name, NULL);
625 char *err = rc == 0 ? "has no OSTs" : "does not exist";
627 llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
628 fsname, pool_name, err);
632 lum_size = sizeof(struct lov_user_md_v3);
635 /* sanity check of target list */
636 if (param->lsp_is_specific) {
637 char ostname[MAX_OBD_NAME + 64];
641 for (i = 0; i < param->lsp_stripe_count; i++) {
642 snprintf(ostname, sizeof(ostname), "%s-OST%04x_UUID",
643 fsname, param->lsp_osts[i]);
644 rc = llapi_search_ost(fsname, pool_name, ostname);
649 llapi_error(LLAPI_MSG_ERROR, rc,
650 "%s: cannot find OST %s in %s",
657 /* Make sure stripe offset is in OST list. */
658 if (param->lsp_osts[i] == param->lsp_stripe_offset)
662 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
663 "%s: stripe offset '%d' is not in the target list",
664 __func__, param->lsp_stripe_offset);
668 lum_size = lov_user_md_size(param->lsp_stripe_count,
669 LOV_USER_MAGIC_SPECIFIC);
672 lum = calloc(1, lum_size);
677 fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
679 if (errno == EISDIR && !(flags & O_DIRECTORY)) {
680 flags = O_DIRECTORY | O_RDONLY;
687 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
692 /* Initialize IOCTL striping pattern structure */
693 lum->lmm_magic = LOV_USER_MAGIC_V1;
694 lum->lmm_pattern = param->lsp_stripe_pattern;
695 lum->lmm_stripe_size = param->lsp_stripe_size;
696 lum->lmm_stripe_count = param->lsp_stripe_count;
697 lum->lmm_stripe_offset = param->lsp_stripe_offset;
698 if (pool_name != NULL) {
699 struct lov_user_md_v3 *lumv3 = (void *)lum;
701 lumv3->lmm_magic = LOV_USER_MAGIC_V3;
702 strncpy(lumv3->lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
704 if (param->lsp_is_specific) {
705 struct lov_user_md_v3 *lumv3 = (void *)lum;
708 lumv3->lmm_magic = LOV_USER_MAGIC_SPECIFIC;
709 if (pool_name == NULL) {
711 * LOV_USER_MAGIC_SPECIFIC uses v3 format plus specified
712 * OST list, therefore if pool is not specified we have
713 * to pack a null pool name for placeholder.
715 memset(lumv3->lmm_pool_name, 0, LOV_MAXPOOLNAME);
718 for (i = 0; i < param->lsp_stripe_count; i++)
719 lumv3->lmm_objects[i].l_ost_idx = param->lsp_osts[i];
722 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lum) != 0) {
723 char errmsg[512] = "stripe already set";
726 if (errno != EEXIST && errno != EALREADY)
727 strncpy(errmsg, strerror(errno), sizeof(errmsg) - 1);
728 if (rc == -EREMOTEIO)
729 snprintf(errmsg, sizeof(errmsg),
730 "inactive OST among your specified %d OST(s)",
731 param->lsp_stripe_count);
733 llapi_err_noerrno(LLAPI_MSG_ERROR,
734 "setstripe error for '%s': %s", name, errmsg);
745 int llapi_file_open_pool(const char *name, int flags, int mode,
746 unsigned long long stripe_size, int stripe_offset,
747 int stripe_count, int stripe_pattern, char *pool_name)
749 const struct llapi_stripe_param param = {
750 .lsp_stripe_size = stripe_size,
751 .lsp_stripe_count = stripe_count,
752 .lsp_stripe_pattern = stripe_pattern,
753 .lsp_stripe_offset = stripe_offset,
754 .lsp_pool = pool_name
756 return llapi_file_open_param(name, flags, mode, ¶m);
759 int llapi_file_open(const char *name, int flags, int mode,
760 unsigned long long stripe_size, int stripe_offset,
761 int stripe_count, int stripe_pattern)
763 return llapi_file_open_pool(name, flags, mode, stripe_size,
764 stripe_offset, stripe_count,
765 stripe_pattern, NULL);
768 int llapi_file_create_foreign(const char *name, mode_t mode, __u32 type,
769 __u32 flags, char *foreign_lov)
772 struct lov_foreign_md *lfm;
775 if (foreign_lov == NULL) {
777 llapi_error(LLAPI_MSG_ERROR, rc,
778 "foreign LOV EA content must be provided");
782 len = strlen(foreign_lov);
783 if (len > XATTR_SIZE_MAX - offsetof(struct lov_foreign_md, lfm_value) ||
786 llapi_error(LLAPI_MSG_ERROR, rc,
787 "foreign LOV EA size %zu (must be 0 < len < %zu)",
788 len, XATTR_SIZE_MAX -
789 offsetof(struct lov_foreign_md, lfm_value));
793 lfm = malloc(len + offsetof(struct lov_foreign_md, lfm_value));
796 llapi_error(LLAPI_MSG_ERROR, rc,
797 "failed to allocate lov_foreign_md");
801 fd = open(name, O_WRONLY|O_CREAT|O_LOV_DELAY_CREATE, mode);
804 llapi_error(LLAPI_MSG_ERROR, fd, "open '%s' failed", name);
808 lfm->lfm_magic = LOV_USER_MAGIC_FOREIGN;
809 lfm->lfm_length = len;
810 lfm->lfm_type = type;
811 lfm->lfm_flags = flags;
812 memcpy(lfm->lfm_value, foreign_lov, len);
814 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lfm) != 0) {
815 char *errmsg = "stripe already set";
819 errmsg = "not on a Lustre filesystem";
820 else if (errno == EEXIST || errno == EALREADY)
821 errmsg = "stripe already set";
823 errmsg = strerror(errno);
825 llapi_err_noerrno(LLAPI_MSG_ERROR,
826 "setstripe error for '%s': %s", name, errmsg);
842 int llapi_file_create(const char *name, unsigned long long stripe_size,
843 int stripe_offset, int stripe_count, int stripe_pattern)
847 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
848 stripe_offset, stripe_count, stripe_pattern,
857 int llapi_file_create_pool(const char *name, unsigned long long stripe_size,
858 int stripe_offset, int stripe_count,
859 int stripe_pattern, char *pool_name)
863 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
864 stripe_offset, stripe_count, stripe_pattern,
873 static int verify_dir_param(const char *name,
874 const struct llapi_stripe_param *param)
876 char fsname[MAX_OBD_NAME + 1] = { 0 };
877 char *pool_name = param->lsp_pool;
880 /* Make sure we are on a Lustre file system */
881 rc = llapi_search_fsname(name, fsname);
883 llapi_error(LLAPI_MSG_ERROR, rc,
884 "'%s' is not on a Lustre filesystem",
889 /* Check if the stripe pattern is sane. */
890 rc = llapi_dir_stripe_limit_check(param->lsp_stripe_offset,
891 param->lsp_stripe_count,
892 param->lsp_stripe_pattern);
896 /* Make sure we have a good pool */
897 if (pool_name != NULL) {
899 * in case user gives the full pool name <fsname>.<poolname>,
902 char *ptr = strchr(pool_name, '.');
906 if (strcmp(pool_name, fsname) != 0) {
908 llapi_err_noerrno(LLAPI_MSG_ERROR,
909 "Pool '%s' is not on filesystem '%s'",
916 /* Make sure the pool exists and is non-empty */
917 rc = llapi_search_tgt(fsname, pool_name, NULL, true);
919 char *err = rc == 0 ? "has no OSTs" : "does not exist";
921 llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
922 fsname, pool_name, err);
927 /* sanity check of target list */
928 if (param->lsp_is_specific) {
929 char mdtname[MAX_OBD_NAME + 64];
933 for (i = 0; i < param->lsp_stripe_count; i++) {
934 snprintf(mdtname, sizeof(mdtname), "%s-MDT%04x_UUID",
935 fsname, param->lsp_tgts[i]);
936 rc = llapi_search_tgt(fsname, pool_name, mdtname, true);
941 llapi_error(LLAPI_MSG_ERROR, rc,
942 "%s: cannot find MDT %s in %s",
949 /* Make sure stripe offset is in MDT list. */
950 if (param->lsp_tgts[i] == param->lsp_stripe_offset)
954 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
955 "%s: stripe offset '%d' is not in the target list",
956 __func__, param->lsp_stripe_offset);
964 static inline void param2lmu(struct lmv_user_md *lmu,
965 const struct llapi_stripe_param *param)
967 lmu->lum_magic = param->lsp_is_specific ? LMV_USER_MAGIC_SPECIFIC :
969 lmu->lum_stripe_count = param->lsp_stripe_count;
970 lmu->lum_stripe_offset = param->lsp_stripe_offset;
971 lmu->lum_hash_type = param->lsp_stripe_pattern;
972 if (param->lsp_pool != NULL)
973 strncpy(lmu->lum_pool_name, param->lsp_pool, LOV_MAXPOOLNAME);
974 if (param->lsp_is_specific) {
977 for (i = 0; i < param->lsp_stripe_count; i++)
978 lmu->lum_objects[i].lum_mds = param->lsp_tgts[i];
982 int llapi_dir_set_default_lmv(const char *name,
983 const struct llapi_stripe_param *param)
985 struct lmv_user_md lmu = { 0 };
989 rc = verify_dir_param(name, param);
993 /* TODO: default lmv doesn't support specific targets yet */
994 if (param->lsp_is_specific)
997 param2lmu(&lmu, param);
999 fd = open(name, O_DIRECTORY | O_RDONLY);
1002 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1006 rc = ioctl(fd, LL_IOC_LMV_SET_DEFAULT_STRIPE, &lmu);
1008 char *errmsg = "stripe already set";
1011 if (errno != EEXIST && errno != EALREADY)
1012 errmsg = strerror(errno);
1014 llapi_err_noerrno(LLAPI_MSG_ERROR,
1015 "default dirstripe error on '%s': %s",
1022 int llapi_dir_set_default_lmv_stripe(const char *name, int stripe_offset,
1023 int stripe_count, int stripe_pattern,
1024 const char *pool_name)
1026 const struct llapi_stripe_param param = {
1027 .lsp_stripe_count = stripe_count,
1028 .lsp_stripe_offset = stripe_offset,
1029 .lsp_stripe_pattern = stripe_pattern,
1030 .lsp_pool = (char *)pool_name
1033 return llapi_dir_set_default_lmv(name, ¶m);
1037 * Create a Lustre directory.
1039 * \param name the name of the directory to be created
1040 * \param mode permission of the file if it is created, see mode in open(2)
1041 * \param param stripe pattern of the newly created directory
1043 * \retval 0 on success
1044 * \retval negative errno on failure
1046 int llapi_dir_create(const char *name, mode_t mode,
1047 const struct llapi_stripe_param *param)
1049 struct lmv_user_md *lmu = NULL;
1051 struct obd_ioctl_data data = { 0 };
1054 char *dirpath = NULL;
1055 char *namepath = NULL;
1060 rc = verify_dir_param(name, param);
1064 lmu_size = lmv_user_md_size(param->lsp_stripe_count,
1065 param->lsp_is_specific ?
1066 LMV_USER_MAGIC_SPECIFIC :
1069 lmu = calloc(1, lmu_size);
1073 dirpath = strdup(name);
1079 namepath = strdup(name);
1086 param2lmu(lmu, param);
1088 filename = basename(namepath);
1089 dir = dirname(dirpath);
1091 data.ioc_inlbuf1 = (char *)filename;
1092 data.ioc_inllen1 = strlen(filename) + 1;
1093 data.ioc_inlbuf2 = (char *)lmu;
1094 data.ioc_inllen2 = lmu_size;
1095 data.ioc_type = mode;
1096 rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
1098 llapi_error(LLAPI_MSG_ERROR, rc,
1099 "error: LL_IOC_LMV_SETSTRIPE pack failed '%s'.",
1104 fd = open(dir, O_DIRECTORY | O_RDONLY);
1107 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1111 if (ioctl(fd, LL_IOC_LMV_SETSTRIPE, buf)) {
1112 char *errmsg = "stripe already set";
1115 if (errno != EEXIST && errno != EALREADY)
1116 errmsg = strerror(errno);
1118 llapi_err_noerrno(LLAPI_MSG_ERROR,
1119 "dirstripe error on '%s': %s", name, errmsg);
1130 * Create a foreign directory.
1132 * \param name the name of the directory to be created
1133 * \param mode permission of the file if it is created, see mode in open(2)
1134 * \param type foreign type to be set in LMV EA
1135 * \param flags foreign flags to be set in LMV EA
1136 * \param value foreign pattern to be set in LMV EA
1138 * \retval 0 on success
1139 * \retval negative errno on failure
1141 int llapi_dir_create_foreign(const char *name, mode_t mode, __u32 type,
1142 __u32 flags, const char *value)
1144 struct lmv_foreign_md *lfm = NULL;
1145 size_t lfm_size, len;
1146 struct obd_ioctl_data data = { 0 };
1149 char *dirpath = NULL;
1150 char *namepath = NULL;
1155 len = strlen(value);
1156 if (len > XATTR_SIZE_MAX - offsetof(struct lmv_foreign_md, lfm_value) ||
1159 llapi_error(LLAPI_MSG_ERROR, rc,
1160 "invalid LOV EA length %zu (must be 0 < len < %zu)",
1161 len, XATTR_SIZE_MAX -
1162 offsetof(struct lmv_foreign_md, lfm_value));
1165 lfm_size = len + offsetof(struct lmv_foreign_md, lfm_value);
1166 lfm = calloc(1, lfm_size);
1170 dirpath = strdup(name);
1176 namepath = strdup(name);
1183 lfm->lfm_magic = LMV_MAGIC_FOREIGN;
1184 lfm->lfm_length = len;
1185 lfm->lfm_type = type;
1186 lfm->lfm_flags = flags;
1187 memcpy(lfm->lfm_value, value, len);
1189 filename = basename(namepath);
1190 dir = dirname(dirpath);
1192 data.ioc_inlbuf1 = (char *)filename;
1193 data.ioc_inllen1 = strlen(filename) + 1;
1194 data.ioc_inlbuf2 = (char *)lfm;
1195 data.ioc_inllen2 = lfm_size;
1196 data.ioc_type = mode;
1197 rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
1199 llapi_error(LLAPI_MSG_ERROR, rc,
1200 "error: LL_IOC_LMV_SETSTRIPE pack failed '%s'.",
1205 fd = open(dir, O_DIRECTORY | O_RDONLY);
1208 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1212 if (ioctl(fd, LL_IOC_LMV_SETSTRIPE, buf)) {
1213 char *errmsg = "stripe already set";
1216 if (errno != EEXIST && errno != EALREADY)
1217 errmsg = strerror(errno);
1219 llapi_err_noerrno(LLAPI_MSG_ERROR,
1220 "dirstripe error on '%s': %s", name, errmsg);
1230 int llapi_dir_create_pool(const char *name, int mode, int stripe_offset,
1231 int stripe_count, int stripe_pattern,
1232 const char *pool_name)
1234 const struct llapi_stripe_param param = {
1235 .lsp_stripe_count = stripe_count,
1236 .lsp_stripe_offset = stripe_offset,
1237 .lsp_stripe_pattern = stripe_pattern,
1238 .lsp_pool = (char *)pool_name
1241 return llapi_dir_create(name, mode, ¶m);
1244 int llapi_direntry_remove(char *dname)
1246 char *dirpath = NULL;
1247 char *namepath = NULL;
1253 dirpath = strdup(dname);
1254 namepath = strdup(dname);
1255 if (!dirpath || !namepath)
1258 filename = basename(namepath);
1260 dir = dirname(dirpath);
1262 fd = open(dir, O_DIRECTORY | O_RDONLY);
1265 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'",
1270 if (ioctl(fd, LL_IOC_REMOVE_ENTRY, filename))
1271 llapi_error(LLAPI_MSG_ERROR, errno,
1272 "error on ioctl %#lx for '%s' (%d)",
1273 (long)LL_IOC_LMV_SETSTRIPE, filename, fd);
1283 * Find the fsname, the full path, and/or an open fd.
1284 * Either the fsname or path must not be NULL
1286 int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
1289 char buf[PATH_MAX], mntdir[PATH_MAX];
1290 char *ptr, *ptr_end;
1292 int idx = 0, mntlen = 0, fd;
1294 int fsnamelen, mountlen;
1296 /* get the mount point */
1297 fp = setmntent(PROC_MOUNTS, "r");
1300 llapi_error(LLAPI_MSG_ERROR, rc,
1301 "cannot retrieve filesystem mount point");
1305 if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
1308 if (!llapi_is_lustre_mnt(&mnt))
1311 if ((want & WANT_INDEX) && (idx++ != index))
1314 mntlen = strlen(mnt.mnt_dir);
1315 ptr = strchr(mnt.mnt_fsname, '/');
1316 while (ptr && *ptr == '/')
1319 * thanks to the call to llapi_is_lustre_mnt() above,
1320 * we are sure that mnt.mnt_fsname contains ":/",
1321 * so ptr should never be NULL
1326 while (*ptr_end != '/' && *ptr_end != '\0')
1329 /* Check the fsname for a match, if given */
1330 mountlen = ptr_end - ptr;
1331 if (!(want & WANT_FSNAME) && fsname != NULL &&
1332 (fsnamelen = strlen(fsname)) > 0 &&
1333 (fsnamelen != mountlen ||
1334 (strncmp(ptr, fsname, mountlen) != 0)))
1337 /* If the path isn't set return the first one we find */
1338 if (path == NULL || strlen(path) == 0) {
1339 strncpy(mntdir, mnt.mnt_dir, sizeof(mntdir) - 1);
1340 mntdir[sizeof(mntdir) - 1] = '\0';
1341 if ((want & WANT_FSNAME) && fsname != NULL) {
1342 strncpy(fsname, ptr, mountlen);
1343 fsname[mountlen] = '\0';
1347 /* Otherwise find the longest matching path */
1348 } else if ((strlen(path) >= mntlen) &&
1349 (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
1350 /* check the path format */
1351 if (strlen(path) > mntlen && path[mntlen] != '/')
1353 strncpy(mntdir, mnt.mnt_dir, sizeof(mntdir) - 1);
1354 mntdir[sizeof(mntdir) - 1] = '\0';
1355 if ((want & WANT_FSNAME) && fsname != NULL) {
1356 strncpy(fsname, ptr, mountlen);
1357 fsname[mountlen] = '\0';
1367 if ((want & WANT_PATH) && path != NULL) {
1368 strncpy(path, mntdir, mntlen);
1369 path[mntlen] = '\0';
1371 if (want & WANT_FD) {
1372 fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
1375 llapi_error(LLAPI_MSG_ERROR, rc,
1376 "cannot open '%s'", mntdir);
1382 } else if (want & WANT_ERROR)
1383 llapi_err_noerrno(LLAPI_MSG_ERROR,
1384 "'%s' not on a mounted Lustre filesystem",
1385 (want & WANT_PATH) ? fsname : path);
1390 * search lustre mounts
1392 * Calling this function will return to the user the mount point, mntdir, and
1393 * the file system name, fsname, if the user passed a buffer to this routine.
1395 * The user inputs are pathname and index. If the pathname is supplied then
1396 * the value of the index will be ignored. The pathname will return data if
1397 * the pathname is located on a lustre mount. Index is used to pick which
1398 * mount point you want in the case of multiple mounted lustre file systems.
1399 * See function lfs_osts in lfs.c for an example of the index use.
1401 int llapi_search_mounts(const char *pathname, int index, char *mntdir,
1404 int want = WANT_PATH, idx = -1;
1406 if (!pathname || pathname[0] == '\0') {
1410 strcpy(mntdir, pathname);
1414 want |= WANT_FSNAME;
1415 return get_root_path(want, fsname, NULL, mntdir, idx);
1418 /* Given a path, find the corresponding Lustre fsname */
1419 int llapi_search_fsname(const char *pathname, char *fsname)
1424 path = realpath(pathname, NULL);
1426 char tmp[PATH_MAX - 1];
1432 if (pathname[0] != '/') {
1434 * Need an absolute path, but realpath() only works for
1435 * pathnames that actually exist. We go through the
1436 * extra hurdle of dirname(getcwd() + pathname) in
1437 * case the relative pathname contains ".." in it.
1439 char realpath[PATH_MAX - 1];
1441 if (getcwd(realpath, sizeof(realpath) - 2) == NULL) {
1443 llapi_error(LLAPI_MSG_ERROR, rc,
1444 "cannot get current working directory");
1448 rc = snprintf(tmp, sizeof(tmp), "%s/", realpath);
1449 if (rc >= sizeof(tmp)) {
1451 llapi_error(LLAPI_MSG_ERROR, rc,
1452 "invalid parent path '%s'",
1458 rc = snprintf(buf, sizeof(buf), "%s%s", tmp, pathname);
1459 if (rc >= sizeof(buf)) {
1461 llapi_error(LLAPI_MSG_ERROR, rc,
1462 "invalid path '%s'", pathname);
1465 path = realpath(buf, NULL);
1467 ptr = strrchr(buf, '/');
1469 llapi_error(LLAPI_MSG_ERROR |
1470 LLAPI_MSG_NO_ERRNO, 0,
1471 "cannot resolve path '%s'",
1476 path = realpath(buf, NULL);
1479 llapi_error(LLAPI_MSG_ERROR, rc,
1480 "cannot resolve path '%s'",
1486 rc = get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL, path, -1);
1491 int llapi_search_rootpath(char *pathname, const char *fsname)
1494 * pathname can be used as an argument by get_root_path(),
1495 * clear it for safety
1498 return get_root_path(WANT_PATH, (char *)fsname, NULL, pathname, -1);
1502 * Get the list of pool members.
1503 * \param poolname string of format \<fsname\>.\<poolname\>
1504 * \param members caller-allocated array of char*
1505 * \param list_size size of the members array
1506 * \param buffer caller-allocated buffer for storing OST names
1507 * \param buffer_size size of the buffer
1509 * \return number of members retrieved for this pool
1510 * \retval -error failure
1512 int llapi_get_poolmembers(const char *poolname, char **members,
1513 int list_size, char *buffer, int buffer_size)
1515 char fsname[PATH_MAX];
1524 /* name is FSNAME.POOLNAME */
1525 if (strlen(poolname) >= sizeof(fsname))
1528 snprintf(fsname, sizeof(fsname), "%s", poolname);
1529 pool = strchr(fsname, '.');
1536 rc = poolpath(&pathname, fsname, NULL);
1538 llapi_error(LLAPI_MSG_ERROR, rc,
1539 "Lustre filesystem '%s' not found",
1544 llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
1545 rc = snprintf(buf, sizeof(buf), "%s/%s", pathname.gl_pathv[0], pool);
1546 cfs_free_param_data(&pathname);
1547 if (rc >= sizeof(buf))
1549 fd = fopen(buf, "r");
1552 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open %s", buf);
1557 while (fgets(buf, sizeof(buf), fd) != NULL) {
1558 if (nb_entries >= list_size) {
1562 buf[sizeof(buf) - 1] = '\0';
1564 tmp = strchr(buf, '\n');
1567 if (used + strlen(buf) + 1 > buffer_size) {
1572 strcpy(buffer + used, buf);
1573 members[nb_entries] = buffer + used;
1574 used += strlen(buf) + 1;
1584 * Get the list of pools in a filesystem.
1585 * \param name filesystem name or path
1586 * \param poollist caller-allocated array of char*
1587 * \param list_size size of the poollist array
1588 * \param buffer caller-allocated buffer for storing pool names
1589 * \param buffer_size size of the buffer
1591 * \return number of pools retrieved for this filesystem
1592 * \retval -error failure
1594 int llapi_get_poollist(const char *name, char **poollist, int list_size,
1595 char *buffer, int buffer_size)
1601 struct dirent *pool;
1603 unsigned int nb_entries = 0;
1604 unsigned int used = 0;
1607 /* initialize output array */
1608 for (i = 0; i < list_size; i++)
1611 /* is name a pathname ? */
1612 ptr = strchr(name, '/');
1614 char fsname_buf[MAXNAMLEN];
1616 /* We will need fsname for printing later */
1617 rc = llapi_getname(name, fsname_buf, sizeof(fsname_buf));
1621 ptr = strrchr(fsname_buf, '-');
1625 fsname = strdup(fsname_buf);
1629 /* name is FSNAME */
1630 fsname = strdup(name);
1635 rc = poolpath(&pathname, fsname, NULL);
1637 llapi_error(LLAPI_MSG_ERROR, rc,
1638 "Lustre filesystem '%s' not found", name);
1642 dir = opendir(pathname.gl_pathv[0]);
1645 llapi_error(LLAPI_MSG_ERROR, rc,
1646 "Could not open pool list for '%s'",
1653 pool = readdir(dir);
1659 /* ignore . and .. */
1660 if (!strcmp(pool->d_name, ".") || !strcmp(pool->d_name, ".."))
1663 /* check output bounds */
1664 if (nb_entries >= list_size) {
1666 goto free_dir_no_msg;
1669 /* +2 for '.' and final '\0' */
1670 if (used + strlen(pool->d_name) + strlen(fsname) + 2
1673 goto free_dir_no_msg;
1676 sprintf(buffer + used, "%s.%s", fsname, pool->d_name);
1677 poollist[nb_entries] = buffer + used;
1678 used += strlen(pool->d_name) + strlen(fsname) + 2;
1684 llapi_error(LLAPI_MSG_ERROR, rc,
1685 "Error reading pool list for '%s'", name);
1687 llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
1692 cfs_free_param_data(&pathname);
1695 return rc != 0 ? rc : nb_entries;
1698 /* wrapper for lfs.c and obd.c */
1699 int llapi_poollist(const char *name)
1702 * list of pool names (assume that pool count is smaller
1705 char **list, *buffer = NULL, *fsname = (char *)name;
1706 char *poolname = NULL, *tmp = NULL, data[16];
1707 enum param_filter type = FILTER_BY_PATH;
1708 int obdcount, bufsize, rc, nb, i;
1713 if (name[0] != '/') {
1714 fsname = strdup(name);
1718 poolname = strchr(fsname, '.');
1721 type = FILTER_BY_FS_NAME;
1724 rc = get_lustre_param_value("lov", fsname, type, "numobd",
1725 data, sizeof(data));
1728 obdcount = atoi(data);
1731 * Allocate space for each fsname-OST0000_UUID, 1 per OST,
1732 * and also an array to store the pointers for all that
1736 bufsize = sizeof(struct obd_uuid) * obdcount;
1737 buffer = realloc(tmp, bufsize + sizeof(*list) * obdcount);
1738 if (buffer == NULL) {
1742 list = (char **) (buffer + bufsize);
1745 /* name is a path or fsname */
1746 nb = llapi_get_poollist(name, list, obdcount,
1749 /* name is a pool name (<fsname>.<poolname>) */
1750 nb = llapi_get_poolmembers(name, list, obdcount,
1754 if (nb == -EOVERFLOW) {
1757 goto retry_get_pools;
1760 for (i = 0; i < nb; i++)
1761 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
1762 rc = (nb < 0 ? nb : 0);
1766 if (fsname != NULL && type == FILTER_BY_FS_NAME)
1771 typedef int (semantic_func_t)(char *path, DIR *parent, DIR **d,
1772 void *data, struct dirent64 *de);
1774 #define OBD_NOT_FOUND (-1)
1776 static void find_param_fini(struct find_param *param)
1778 if (param->fp_migrate)
1781 if (param->fp_obd_indexes) {
1782 free(param->fp_obd_indexes);
1783 param->fp_obd_indexes = NULL;
1786 if (param->fp_lmd) {
1787 free(param->fp_lmd);
1788 param->fp_lmd = NULL;
1791 if (param->fp_lmv_md) {
1792 free(param->fp_lmv_md);
1793 param->fp_lmv_md = NULL;
1797 static int common_param_init(struct find_param *param, char *path)
1799 int lum_size = get_mds_md_size(path);
1804 /* migrate has fp_lmv_md initialized outside */
1805 if (param->fp_migrate)
1808 if (lum_size < PATH_MAX + 1)
1809 lum_size = PATH_MAX + 1;
1811 param->fp_lum_size = lum_size;
1812 param->fp_lmd = calloc(1, offsetof(typeof(*param->fp_lmd), lmd_lmm) +
1814 if (param->fp_lmd == NULL) {
1815 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1816 "error: allocate %zu bytes for layout failed",
1817 sizeof(lstat_t) + param->fp_lum_size);
1821 param->fp_lmv_stripe_count = 256;
1822 param->fp_lmv_md = calloc(1,
1823 lmv_user_md_size(param->fp_lmv_stripe_count,
1824 LMV_USER_MAGIC_SPECIFIC));
1825 if (param->fp_lmv_md == NULL) {
1826 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1827 "error: allocation of %d bytes for ioctl",
1828 lmv_user_md_size(param->fp_lmv_stripe_count,
1829 LMV_USER_MAGIC_SPECIFIC));
1830 find_param_fini(param);
1834 param->fp_got_uuids = 0;
1835 param->fp_obd_indexes = NULL;
1836 param->fp_obd_index = OBD_NOT_FOUND;
1837 param->fp_mdt_index = OBD_NOT_FOUND;
1841 static int cb_common_fini(char *path, DIR *parent, DIR **dirp, void *data,
1842 struct dirent64 *de)
1844 struct find_param *param = data;
1850 /* set errno upon failure */
1851 static DIR *opendir_parent(const char *path)
1857 path_copy = strdup(path);
1858 if (path_copy == NULL)
1861 parent_path = dirname(path_copy);
1862 parent = opendir(parent_path);
1868 static int cb_get_dirstripe(char *path, DIR *d, struct find_param *param)
1873 param->fp_lmv_md->lum_stripe_count = param->fp_lmv_stripe_count;
1874 if (param->fp_get_default_lmv)
1875 param->fp_lmv_md->lum_magic = LMV_USER_MAGIC;
1877 param->fp_lmv_md->lum_magic = LMV_MAGIC_V1;
1879 ret = ioctl(dirfd(d), LL_IOC_LMV_GETSTRIPE, param->fp_lmv_md);
1880 if (errno == E2BIG && ret != 0) {
1884 /* if foreign LMV case, fake stripes number */
1885 if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
1886 struct lmv_foreign_md *lfm;
1888 lfm = (struct lmv_foreign_md *)param->fp_lmv_md;
1889 if (lfm->lfm_length < XATTR_SIZE_MAX -
1890 offsetof(typeof(*lfm), lfm_value)) {
1891 uint32_t size = lfm->lfm_length +
1892 offsetof(typeof(*lfm), lfm_value);
1894 stripe_count = lmv_foreign_to_md_stripes(size);
1896 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
1897 "error: invalid %d foreign size returned from ioctl",
1902 stripe_count = param->fp_lmv_md->lum_stripe_count;
1904 if (stripe_count <= param->fp_lmv_stripe_count)
1907 free(param->fp_lmv_md);
1908 param->fp_lmv_stripe_count = stripe_count;
1909 lmv_size = lmv_user_md_size(stripe_count,
1910 LMV_USER_MAGIC_SPECIFIC);
1911 param->fp_lmv_md = malloc(lmv_size);
1912 if (param->fp_lmv_md == NULL) {
1913 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1914 "error: allocation of %d bytes for ioctl",
1915 lmv_user_md_size(param->fp_lmv_stripe_count,
1916 LMV_USER_MAGIC_SPECIFIC));
1924 static void convert_lmd_statx(struct lov_user_mds_data *lmd_v2, lstat_t *st,
1927 memset(&lmd_v2->lmd_stx, 0, sizeof(lmd_v2->lmd_stx));
1928 lmd_v2->lmd_stx.stx_blksize = st->st_blksize;
1929 lmd_v2->lmd_stx.stx_nlink = st->st_nlink;
1930 lmd_v2->lmd_stx.stx_uid = st->st_uid;
1931 lmd_v2->lmd_stx.stx_gid = st->st_gid;
1932 lmd_v2->lmd_stx.stx_mode = st->st_mode;
1933 lmd_v2->lmd_stx.stx_ino = st->st_ino;
1934 lmd_v2->lmd_stx.stx_size = st->st_size;
1935 lmd_v2->lmd_stx.stx_blocks = st->st_blocks;
1936 lmd_v2->lmd_stx.stx_atime.tv_sec = st->st_atime;
1937 lmd_v2->lmd_stx.stx_ctime.tv_sec = st->st_ctime;
1938 lmd_v2->lmd_stx.stx_mtime.tv_sec = st->st_mtime;
1939 lmd_v2->lmd_stx.stx_rdev_major = major(st->st_rdev);
1940 lmd_v2->lmd_stx.stx_rdev_minor = minor(st->st_rdev);
1941 lmd_v2->lmd_stx.stx_dev_major = major(st->st_dev);
1942 lmd_v2->lmd_stx.stx_dev_minor = minor(st->st_dev);
1943 lmd_v2->lmd_stx.stx_mask |= STATX_BASIC_STATS;
1945 lmd_v2->lmd_flags = 0;
1947 lmd_v2->lmd_flags |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
1949 lmd_v2->lmd_stx.stx_mask &= ~(STATX_SIZE | STATX_BLOCKS);
1950 if (lmd_v2->lmd_stx.stx_size)
1951 lmd_v2->lmd_flags |= OBD_MD_FLLAZYSIZE;
1952 if (lmd_v2->lmd_stx.stx_blocks)
1953 lmd_v2->lmd_flags |= OBD_MD_FLLAZYBLOCKS;
1955 lmd_v2->lmd_flags |= OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME |
1956 OBD_MD_FLBLKSZ | OBD_MD_FLMODE | OBD_MD_FLTYPE |
1957 OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLNLINK |
1962 static int convert_lmdbuf_v1v2(void *lmdbuf, int lmdlen)
1964 struct lov_user_mds_data_v1 *lmd_v1 = lmdbuf;
1965 struct lov_user_mds_data *lmd_v2 = lmdbuf;
1969 size = lov_comp_md_size((struct lov_comp_md_v1 *)&lmd_v1->lmd_lmm);
1973 if (lmdlen < sizeof(lmd_v1->lmd_st) + size)
1976 st = lmd_v1->lmd_st;
1977 memmove(&lmd_v2->lmd_lmm, &lmd_v1->lmd_lmm,
1978 lmdlen - (&lmd_v2->lmd_lmm - &lmd_v1->lmd_lmm));
1979 convert_lmd_statx(lmd_v2, &st, false);
1980 lmd_v2->lmd_lmmsize = 0;
1981 lmd_v2->lmd_padding = 0;
1986 int get_lmd_info_fd(const char *path, int parent_fd, int dir_fd,
1987 void *lmdbuf, int lmdlen, enum get_lmd_info_type type)
1989 struct lov_user_mds_data *lmd = lmdbuf;
1990 static bool use_old_ioctl;
1994 if (parent_fd < 0 && dir_fd < 0)
1996 if (type != GET_LMD_INFO && type != GET_LMD_STRIPE)
2001 * LL_IOC_MDC_GETINFO operates on the current directory inode
2002 * and returns struct lov_user_mds_data, while
2003 * LL_IOC_LOV_GETSTRIPE returns only struct lov_user_md.
2005 if (type == GET_LMD_INFO)
2006 cmd = use_old_ioctl ? LL_IOC_MDC_GETINFO_V1 :
2007 LL_IOC_MDC_GETINFO_V2;
2009 cmd = LL_IOC_LOV_GETSTRIPE;
2012 ret = ioctl(dir_fd, cmd, lmdbuf);
2013 if (ret < 0 && errno == ENOTTY &&
2014 cmd == LL_IOC_MDC_GETINFO_V2) {
2015 cmd = LL_IOC_MDC_GETINFO_V1;
2016 use_old_ioctl = true;
2020 if (cmd == LL_IOC_MDC_GETINFO_V1 && !ret)
2021 ret = convert_lmdbuf_v1v2(lmdbuf, lmdlen);
2022 } else if (parent_fd >= 0) {
2023 const char *fname = strrchr(path, '/');
2026 * IOC_MDC_GETFILEINFO takes as input the filename (relative to
2027 * the parent directory) and returns struct lov_user_mds_data,
2028 * while IOC_MDC_GETFILESTRIPE returns only struct lov_user_md.
2030 * This avoids opening, locking, and closing each file on the
2031 * client if that is not needed. Multiple of these ioctl() can
2032 * be done on the parent dir with a single open for all
2033 * files in that directory, and it also doesn't pollute the
2034 * client dcache with millions of dentries when traversing
2035 * a large filesystem.
2037 fname = (fname == NULL ? path : fname + 1);
2039 ret = snprintf(lmdbuf, lmdlen, "%s", fname);
2042 else if (ret >= lmdlen || ret++ == 0)
2045 if (type == GET_LMD_INFO)
2046 cmd = use_old_ioctl ? IOC_MDC_GETFILEINFO_V1 :
2047 IOC_MDC_GETFILEINFO_V2;
2049 cmd = IOC_MDC_GETFILESTRIPE;
2052 ret = ioctl(parent_fd, cmd, lmdbuf);
2053 if (ret < 0 && errno == ENOTTY &&
2054 cmd == IOC_MDC_GETFILEINFO_V2) {
2055 cmd = IOC_MDC_GETFILEINFO_V1;
2056 use_old_ioctl = true;
2057 goto retry_getfileinfo;
2060 if (cmd == IOC_MDC_GETFILEINFO_V1 && !ret)
2061 ret = convert_lmdbuf_v1v2(lmdbuf, lmdlen);
2065 if (ret && type == GET_LMD_INFO) {
2066 if (errno == ENOTTY) {
2070 * ioctl is not supported, it is not a lustre fs.
2071 * Do the regular lstat(2) instead.
2073 ret = lstat_f(path, &st);
2076 llapi_error(LLAPI_MSG_ERROR, ret,
2077 "error: %s: lstat failed for %s",
2081 convert_lmd_statx(lmd, &st, true);
2083 * It may be wrong to set use_old_ioctl with true as
2084 * the file is not a lustre fs. So reset it with false
2087 use_old_ioctl = false;
2088 } else if (errno == ENOENT) {
2090 llapi_error(LLAPI_MSG_WARN, ret,
2091 "warning: %s does not exist", path);
2092 } else if (errno != EISDIR && errno != ENODATA) {
2094 llapi_error(LLAPI_MSG_ERROR, ret,
2095 "%s ioctl failed for %s.",
2096 dir_fd >= 0 ? "LL_IOC_MDC_GETINFO" :
2097 "IOC_MDC_GETFILEINFO", path);
2104 static int get_lmd_info(char *path, DIR *parent, DIR *dir, void *lmdbuf,
2105 int lmdlen, enum get_lmd_info_type type)
2111 parent_fd = dirfd(parent);
2113 dir_fd = dirfd(dir);
2115 return get_lmd_info_fd(path, parent_fd, dir_fd, lmdbuf, lmdlen, type);
2118 static int llapi_semantic_traverse(char *path, int size, DIR *parent,
2119 semantic_func_t sem_init,
2120 semantic_func_t sem_fini, void *data,
2121 struct dirent64 *de)
2123 struct find_param *param = (struct find_param *)data;
2124 struct dirent64 *dent;
2132 if (!d && errno != ENOTDIR) {
2134 llapi_error(LLAPI_MSG_ERROR, ret, "%s: Failed to open '%s'",
2137 } else if (!d && !parent) {
2138 /* ENOTDIR. Open the parent dir. */
2139 p = opendir_parent(path);
2146 if (sem_init && (ret = sem_init(path, parent ?: p, &d, data, de)))
2152 while ((dent = readdir64(d)) != NULL) {
2155 if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
2159 if ((len + dent->d_reclen + 2) > size) {
2160 llapi_err_noerrno(LLAPI_MSG_ERROR,
2161 "error: %s: string buffer too small",
2166 strcat(path, dent->d_name);
2168 if (dent->d_type == DT_UNKNOWN) {
2169 struct lov_user_mds_data *lmd = param->fp_lmd;
2171 rc = get_lmd_info(path, d, NULL, lmd,
2172 param->fp_lum_size, GET_LMD_INFO);
2174 dent->d_type = IFTODT(lmd->lmd_stx.stx_mode);
2181 switch (dent->d_type) {
2183 llapi_err_noerrno(LLAPI_MSG_ERROR,
2184 "error: %s: '%s' is UNKNOWN type %d",
2185 __func__, dent->d_name, dent->d_type);
2188 rc = llapi_semantic_traverse(path, size, d, sem_init,
2189 sem_fini, data, dent);
2190 if (rc != 0 && ret == 0)
2196 rc = sem_init(path, d, NULL, data, dent);
2197 if (rc < 0 && ret == 0) {
2202 if (sem_fini && rc == 0)
2203 sem_fini(path, d, NULL, data, dent);
2211 sem_fini(path, parent, &d, data, de);
2220 static int param_callback(char *path, semantic_func_t sem_init,
2221 semantic_func_t sem_fini, struct find_param *param)
2223 int ret, len = strlen(path);
2226 if (len > PATH_MAX) {
2228 llapi_error(LLAPI_MSG_ERROR, ret,
2229 "Path name '%s' is too long", path);
2233 buf = (char *)malloc(PATH_MAX + 1);
2237 snprintf(buf, PATH_MAX + 1, "%s", path);
2238 ret = common_param_init(param, buf);
2242 param->fp_depth = 0;
2244 ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
2245 sem_fini, param, NULL);
2247 find_param_fini(param);
2249 return ret < 0 ? ret : 0;
2252 int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
2254 int rc = ioctl(fd, OBD_IOC_GETNAME, lov_name);
2258 llapi_error(LLAPI_MSG_ERROR, rc, "cannot get lov name");
2263 int llapi_file_fget_lmv_uuid(int fd, struct obd_uuid *lov_name)
2265 int rc = ioctl(fd, OBD_IOC_GETMDNAME, lov_name);
2269 llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lmv name.");
2274 int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
2278 fd = open(path, O_RDONLY | O_NONBLOCK);
2281 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open '%s'", path);
2285 rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
2291 int llapi_file_get_lmv_uuid(const char *path, struct obd_uuid *lov_uuid)
2295 fd = open(path, O_RDONLY | O_NONBLOCK);
2298 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
2302 rc = llapi_file_fget_lmv_uuid(fd, lov_uuid);
2314 * If uuidp is NULL, return the number of available obd uuids.
2315 * If uuidp is non-NULL, then it will return the uuids of the obds. If
2316 * there are more OSTs than allocated to uuidp, then an error is returned with
2317 * the ost_count set to number of available obd uuids.
2319 static int llapi_get_target_uuids(int fd, struct obd_uuid *uuidp,
2320 int *ost_count, enum tgt_type type)
2322 char buf[PATH_MAX], format[32];
2323 int rc = 0, index = 0;
2324 struct obd_uuid name;
2328 /* Get the lov name */
2329 if (type == LOV_TYPE)
2330 rc = llapi_file_fget_lov_uuid(fd, &name);
2332 rc = llapi_file_fget_lmv_uuid(fd, &name);
2336 /* Now get the ost uuids */
2337 rc = get_lustre_param_path(type == LOV_TYPE ? "lov" : "lmv", name.uuid,
2338 FILTER_BY_EXACT, "target_obd", ¶m);
2342 fp = fopen(param.gl_pathv[0], "r");
2345 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
2350 snprintf(format, sizeof(format),
2351 "%%d: %%%zus", sizeof(uuidp[0].uuid) - 1);
2352 while (fgets(buf, sizeof(buf), fp) != NULL) {
2353 if (uuidp && (index < *ost_count)) {
2354 if (sscanf(buf, format, &index, uuidp[index].uuid) < 2)
2362 if (uuidp && (index > *ost_count))
2367 cfs_free_param_data(¶m);
2371 int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
2373 return llapi_get_target_uuids(fd, uuidp, ost_count, LOV_TYPE);
2376 int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
2381 root = open(mnt, O_RDONLY | O_DIRECTORY);
2384 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
2389 rc = ioctl(root, LL_IOC_GETOBDCOUNT, count);
2398 * Check if user specified value matches a real uuid. Ignore _UUID,
2399 * -osc-4ba41334, other trailing gunk in comparison.
2400 * @param real_uuid ends in "_UUID"
2401 * @param search_uuid may or may not end in "_UUID"
2403 int llapi_uuid_match(char *real_uuid, char *search_uuid)
2405 int cmplen = strlen(real_uuid);
2406 int searchlen = strlen(search_uuid);
2408 if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
2410 if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
2414 * The UUIDs may legitimately be different lengths, if
2415 * the system was upgraded from an older version.
2417 if (cmplen != searchlen)
2420 return (strncmp(search_uuid, real_uuid, cmplen) == 0);
2424 * Here, param->fp_obd_uuid points to a single obduuid, the index of which is
2425 * returned in param->fp_obd_index
2427 static int setup_obd_uuid(int fd, char *dname, struct find_param *param)
2429 struct obd_uuid obd_uuid;
2436 if (param->fp_got_uuids)
2439 /* Get the lov/lmv name */
2440 if (param->fp_get_lmv)
2441 rc = llapi_file_fget_lmv_uuid(fd, &obd_uuid);
2443 rc = llapi_file_fget_lov_uuid(fd, &obd_uuid);
2445 if (rc != -ENOTTY) {
2446 llapi_error(LLAPI_MSG_ERROR, rc,
2447 "error: can't get %s name: %s",
2448 param->fp_get_lmv ? "lmv" : "lov",
2456 param->fp_got_uuids = 1;
2458 /* Now get the ost uuids */
2459 rc = get_lustre_param_path(param->fp_get_lmv ? "lmv" : "lov",
2460 obd_uuid.uuid, FILTER_BY_EXACT,
2461 "target_obd", ¶m_data);
2465 fp = fopen(param_data.gl_pathv[0], "r");
2468 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
2469 param_data.gl_pathv[0]);
2473 if (!param->fp_obd_uuid && !param->fp_quiet && !param->fp_obds_printed)
2474 llapi_printf(LLAPI_MSG_NORMAL, "%s:\n",
2475 param->fp_get_lmv ? "MDTS" : "OBDS");
2477 snprintf(format, sizeof(format),
2478 "%%d: %%%zus", sizeof(obd_uuid.uuid) - 1);
2479 while (fgets(buf, sizeof(buf), fp) != NULL) {
2482 if (sscanf(buf, format, &index, obd_uuid.uuid) < 2)
2485 if (param->fp_obd_uuid) {
2486 if (llapi_uuid_match(obd_uuid.uuid,
2487 param->fp_obd_uuid->uuid)) {
2488 param->fp_obd_index = index;
2491 } else if (!param->fp_quiet && !param->fp_obds_printed) {
2492 /* Print everything */
2493 llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
2496 param->fp_obds_printed = 1;
2500 if (param->fp_obd_uuid && (param->fp_obd_index == OBD_NOT_FOUND)) {
2501 llapi_err_noerrno(LLAPI_MSG_ERROR,
2502 "error: %s: unknown obduuid: %s",
2503 __func__, param->fp_obd_uuid->uuid);
2507 cfs_free_param_data(¶m_data);
2512 * In this case, param->fp_obd_uuid will be an array of obduuids and
2513 * obd index for all these obduuids will be returned in
2514 * param->fp_obd_indexes
2516 static int setup_indexes(DIR *dir, char *path, struct obd_uuid *obduuids,
2517 int num_obds, int **obdindexes, int *obdindex,
2520 int ret, obdcount, obd_valid = 0, obdnum;
2522 struct obd_uuid *uuids = NULL;
2526 if (type == LOV_TYPE)
2527 ret = get_param_lov(path, "numobd", buf, sizeof(buf));
2529 ret = get_param_lmv(path, "numobd", buf, sizeof(buf));
2533 obdcount = atoi(buf);
2534 uuids = malloc(obdcount * sizeof(struct obd_uuid));
2539 ret = llapi_get_target_uuids(dirfd(dir), uuids, &obdcount, type);
2541 if (ret == -EOVERFLOW) {
2542 struct obd_uuid *uuids_temp;
2544 uuids_temp = realloc(uuids, obdcount *
2545 sizeof(struct obd_uuid));
2546 if (uuids_temp != NULL) {
2548 goto retry_get_uuids;
2553 llapi_error(LLAPI_MSG_ERROR, ret, "cannot get ost uuid");
2557 indexes = malloc(num_obds * sizeof(*obdindex));
2558 if (indexes == NULL) {
2563 for (obdnum = 0; obdnum < num_obds; obdnum++) {
2566 /* The user may have specified a simple index */
2567 i = strtol(obduuids[obdnum].uuid, &end, 0);
2568 if (end && *end == '\0' && i < obdcount) {
2569 indexes[obdnum] = i;
2572 for (i = 0; i < obdcount; i++) {
2573 if (llapi_uuid_match(uuids[i].uuid,
2574 obduuids[obdnum].uuid)) {
2575 indexes[obdnum] = i;
2581 if (i >= obdcount) {
2582 indexes[obdnum] = OBD_NOT_FOUND;
2583 llapi_err_noerrno(LLAPI_MSG_ERROR,
2584 "invalid obduuid '%s'",
2585 obduuids[obdnum].uuid);
2591 *obdindex = OBD_NOT_FOUND;
2593 *obdindex = obd_valid;
2595 *obdindexes = indexes;
2603 static int setup_target_indexes(DIR *dir, char *path, struct find_param *param)
2607 if (param->fp_mdt_uuid) {
2608 ret = setup_indexes(dir, path, param->fp_mdt_uuid,
2610 ¶m->fp_mdt_indexes,
2611 ¶m->fp_mdt_index, LMV_TYPE);
2616 if (param->fp_obd_uuid) {
2617 ret = setup_indexes(dir, path, param->fp_obd_uuid,
2619 ¶m->fp_obd_indexes,
2620 ¶m->fp_obd_index, LOV_TYPE);
2625 param->fp_got_uuids = 1;
2630 int llapi_ostlist(char *path, struct find_param *param)
2635 fd = open(path, O_RDONLY | O_DIRECTORY);
2639 ret = setup_obd_uuid(fd, path, param);
2646 * Tries to determine the default stripe attributes for a given filesystem. The
2647 * filesystem to check should be specified by fsname, or will be determined
2650 static int sattr_get_defaults(const char *const fsname,
2651 unsigned int *scount,
2652 unsigned int *ssize,
2653 unsigned int *soffset)
2659 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2660 "stripecount", val, sizeof(val));
2663 *scount = atoi(val);
2667 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2668 "stripesize", val, sizeof(val));
2675 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2676 "stripeoffset", val, sizeof(val));
2679 *soffset = atoi(val);
2686 * Tries to gather the default stripe attributes for a given filesystem. If
2687 * the attributes can be determined, they are cached for easy retreival the
2688 * next time they are needed. Only a single filesystem's attributes are
2691 int sattr_cache_get_defaults(const char *const fsname,
2692 const char *const pathname, unsigned int *scount,
2693 unsigned int *ssize, unsigned int *soffset)
2696 char fsname[PATH_MAX + 1];
2697 unsigned int stripecount;
2698 unsigned int stripesize;
2699 unsigned int stripeoffset;
2705 char fsname_buf[PATH_MAX + 1];
2706 unsigned int tmp[3];
2708 if (fsname == NULL) {
2709 rc = llapi_search_fsname(pathname, fsname_buf);
2713 snprintf(fsname_buf, sizeof(fsname_buf), "%s", fsname);
2716 if (strncmp(fsname_buf, cache.fsname, sizeof(fsname_buf) - 1) != 0) {
2718 * Ensure all 3 sattrs (count, size, and offset) are
2719 * successfully retrieved and stored in tmp before writing to
2722 rc = sattr_get_defaults(fsname_buf, &tmp[0], &tmp[1], &tmp[2]);
2726 cache.stripecount = tmp[0];
2727 cache.stripesize = tmp[1];
2728 cache.stripeoffset = tmp[2];
2729 snprintf(cache.fsname, sizeof(cache.fsname), "%s", fsname_buf);
2733 *scount = cache.stripecount;
2735 *ssize = cache.stripesize;
2737 *soffset = cache.stripeoffset;
2742 static char *layout2name(__u32 layout_pattern)
2744 if (layout_pattern & LOV_PATTERN_F_RELEASED)
2746 else if (layout_pattern == LOV_PATTERN_MDT)
2748 else if (layout_pattern == LOV_PATTERN_RAID0)
2750 else if (layout_pattern ==
2751 (LOV_PATTERN_RAID0 | LOV_PATTERN_OVERSTRIPING))
2752 return "raid0,overstriped";
2757 enum lov_dump_flags {
2758 LDF_IS_DIR = 0x0001,
2759 LDF_IS_RAW = 0x0002,
2760 LDF_INDENT = 0x0004,
2761 LDF_SKIP_OBJS = 0x0008,
2763 LDF_EXTENSION = 0x0020,
2766 static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
2767 struct lov_user_ost_data_v1 *objects,
2768 enum llapi_layout_verbose verbose,
2769 int depth, char *pool_name,
2770 enum lov_dump_flags flags)
2772 bool is_dir = flags & LDF_IS_DIR;
2773 bool is_raw = flags & LDF_IS_RAW;
2774 bool indent = flags & LDF_INDENT;
2775 bool yaml = flags & LDF_YAML;
2776 bool skip_objs = flags & LDF_SKIP_OBJS;
2777 bool extension = flags & LDF_EXTENSION;
2778 char *prefix = is_dir ? "" : "lmm_";
2779 char *separator = "";
2780 char *space = indent ? " " : "";
2783 if (is_dir && lmm_oi_seq(&lum->lmm_oi) == FID_SEQ_LOV_DEFAULT) {
2784 lmm_oi_set_seq(&lum->lmm_oi, 0);
2785 if (!indent && (verbose & VERBOSE_DETAIL))
2786 llapi_printf(LLAPI_MSG_NORMAL, "%s(Default) ", space);
2789 if (!yaml && !indent && depth && path &&
2790 ((verbose != VERBOSE_OBJID) || !is_dir))
2791 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
2793 if ((verbose & VERBOSE_DETAIL) && !is_dir) {
2794 llapi_printf(LLAPI_MSG_NORMAL, "%s%smagic: 0x%08X\n",
2795 space, prefix, lum->lmm_magic);
2796 llapi_printf(LLAPI_MSG_NORMAL, "%s%sseq: %#jx\n",
2798 (uintmax_t)lmm_oi_seq(&lum->lmm_oi));
2799 llapi_printf(LLAPI_MSG_NORMAL, "%s%sobject_id: %#jx\n",
2801 (uintmax_t)lmm_oi_id(&lum->lmm_oi));
2803 if ((verbose & (VERBOSE_DETAIL | VERBOSE_DFID)) && !is_dir) {
2808 if (verbose & ~VERBOSE_DFID)
2809 llapi_printf(LLAPI_MSG_NORMAL, "%slmm_fid: ",
2812 * This needs a bit of hand-holding since old 1.x lmm_oi
2813 * have { oi.oi_id = mds_inum, oi.oi_seq = 0 } and 2.x lmm_oi
2814 * have { oi.oi_id = mds_oid, oi.oi_seq = mds_seq } instead of
2815 * a real FID. Ideally the 2.x code would have stored this
2816 * like a FID with { oi_id = mds_seq, oi_seq = mds_oid } so the
2817 * ostid union lu_fid { f_seq = mds_seq, f_oid = mds_oid }
2818 * worked properly (especially since IGIF FIDs use mds_inum as
2819 * the FID SEQ), but unfortunately that didn't happen.
2821 * Print it to look like an IGIF FID, even though the fields
2822 * are reversed on disk, so that it makes sense to userspace.
2824 * Don't use ostid_id() and ostid_seq(), since they assume the
2825 * oi_fid fields are in the right order. This is why there are
2826 * separate lmm_oi_seq() and lmm_oi_id() routines for this.
2828 * For newer layout types hopefully this will be a real FID.
2830 seq = lmm_oi_seq(&lum->lmm_oi) == 0 ?
2831 lmm_oi_id(&lum->lmm_oi) : lmm_oi_seq(&lum->lmm_oi);
2832 oid = lmm_oi_seq(&lum->lmm_oi) == 0 ?
2833 0 : (__u32)lmm_oi_id(&lum->lmm_oi);
2834 ver = (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32);
2836 llapi_printf(LLAPI_MSG_NORMAL, DFID_NOBRACE"\n",
2837 (unsigned long long)seq, oid, ver);
2839 llapi_printf(LLAPI_MSG_NORMAL, DFID"\n",
2840 (unsigned long long)seq, oid, ver);
2843 if (verbose & VERBOSE_STRIPE_COUNT) {
2844 if (verbose & ~VERBOSE_STRIPE_COUNT)
2845 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_count: ",
2848 if (!is_raw && lum->lmm_stripe_count == 0 &&
2849 lov_pattern(lum->lmm_pattern) != LOV_PATTERN_MDT) {
2850 unsigned int scount;
2852 rc = sattr_cache_get_defaults(NULL, path,
2856 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2859 llapi_error(LLAPI_MSG_ERROR, rc,
2860 "Cannot determine default stripe count.");
2862 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2864 (__s16)lum->lmm_stripe_count);
2867 llapi_printf(LLAPI_MSG_NORMAL, "%hd",
2869 (__s16)lum->lmm_stripe_count);
2871 if (!yaml && is_dir)
2877 if (((verbose & VERBOSE_STRIPE_SIZE) && !extension) ||
2878 ((verbose & VERBOSE_EXT_SIZE) && extension)) {
2879 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2880 if (verbose & ~VERBOSE_EXT_SIZE && extension)
2881 llapi_printf(LLAPI_MSG_NORMAL, "%s%sextension_size: ",
2883 if (verbose & ~VERBOSE_STRIPE_SIZE && !extension)
2884 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_size: ",
2886 if (is_dir && !is_raw && lum->lmm_stripe_size == 0) {
2889 rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
2892 llapi_printf(LLAPI_MSG_NORMAL, "%u", ssize);
2894 llapi_error(LLAPI_MSG_ERROR, rc,
2895 "Cannot determine default stripe size.");
2897 /* Extension size is in KiB */
2898 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
2900 (unsigned long long)(lum->lmm_stripe_size * SEL_UNIT_SIZE) :
2901 (unsigned long long)lum->lmm_stripe_size);
2903 if (!yaml && is_dir)
2909 if ((verbose & VERBOSE_PATTERN)) {
2910 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2911 if (verbose & ~VERBOSE_PATTERN)
2912 llapi_printf(LLAPI_MSG_NORMAL, "%s%spattern: ",
2914 if (lov_pattern_supported(lum->lmm_pattern))
2915 llapi_printf(LLAPI_MSG_NORMAL, "%s",
2916 layout2name(lum->lmm_pattern));
2918 llapi_printf(LLAPI_MSG_NORMAL, "%x", lum->lmm_pattern);
2919 separator = (!yaml && is_dir) ? " " : "\n";
2922 if ((verbose & VERBOSE_GENERATION) && !is_dir) {
2923 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2924 if (verbose & ~VERBOSE_GENERATION)
2925 llapi_printf(LLAPI_MSG_NORMAL, "%s%slayout_gen: ",
2927 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2928 skip_objs ? 0 : (int)lum->lmm_layout_gen);
2932 if (verbose & VERBOSE_STRIPE_OFFSET) {
2933 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2934 if (verbose & ~VERBOSE_STRIPE_OFFSET)
2935 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_offset: ",
2937 if (is_dir || skip_objs)
2938 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2939 lum->lmm_stripe_offset ==
2940 (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
2941 lum->lmm_stripe_offset);
2942 else if (lov_pattern(lum->lmm_pattern) == LOV_PATTERN_MDT)
2943 llapi_printf(LLAPI_MSG_NORMAL, "0");
2945 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2946 objects[0].l_ost_idx);
2947 if (!yaml && is_dir)
2953 if ((verbose & VERBOSE_POOL) && pool_name && (pool_name[0] != '\0')) {
2954 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2955 if (verbose & ~VERBOSE_POOL)
2956 llapi_printf(LLAPI_MSG_NORMAL, "%s%spool: ",
2958 llapi_printf(LLAPI_MSG_NORMAL, "%s", pool_name);
2959 if (!yaml && is_dir)
2965 if (strlen(separator) != 0)
2966 llapi_printf(LLAPI_MSG_NORMAL, "\n");
2969 void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
2970 struct lov_user_ost_data_v1 *objects,
2971 char *path, int obdindex, int depth,
2972 enum llapi_layout_verbose verbose,
2973 enum lov_dump_flags flags)
2975 bool is_dir = flags & LDF_IS_DIR;
2976 bool indent = flags & LDF_INDENT;
2977 bool skip_objs = flags & LDF_SKIP_OBJS;
2978 bool yaml = flags & LDF_YAML;
2979 bool obdstripe = obdindex == OBD_NOT_FOUND;
2982 if (!obdstripe && !skip_objs) {
2983 for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
2984 if (obdindex == objects[i].l_ost_idx) {
2994 lov_dump_user_lmm_header(lum, path, objects, verbose, depth, pool_name,
2997 if (!is_dir && !skip_objs && (verbose & VERBOSE_OBJID) &&
2998 !(lum->lmm_pattern & LOV_PATTERN_F_RELEASED ||
2999 lov_pattern(lum->lmm_pattern) == LOV_PATTERN_MDT)) {
3000 char *space = " - ";
3003 llapi_printf(LLAPI_MSG_NORMAL,
3004 "%6slmm_objects:\n", " ");
3006 llapi_printf(LLAPI_MSG_NORMAL, "lmm_objects:\n");
3008 llapi_printf(LLAPI_MSG_NORMAL,
3009 "\tobdidx\t\t objid\t\t objid\t\t group\n");
3011 for (i = 0; i < lum->lmm_stripe_count; i++) {
3012 int idx = objects[i].l_ost_idx;
3013 long long oid = ostid_id(&objects[i].l_ost_oi);
3014 long long gr = ostid_seq(&objects[i].l_ost_oi);
3016 if (obdindex != OBD_NOT_FOUND && obdindex != idx)
3020 struct lu_fid fid = { 0 };
3022 ostid_to_fid(&fid, &objects[i].l_ost_oi, idx);
3023 llapi_printf(LLAPI_MSG_NORMAL,
3024 "%sl_ost_idx: %d\n", space, idx);
3025 llapi_printf(LLAPI_MSG_NORMAL,
3026 "%8sl_fid: "DFID_NOBRACE"\n",
3028 } else if (indent) {
3029 struct lu_fid fid = { 0 };
3031 ostid_to_fid(&fid, &objects[i].l_ost_oi, idx);
3032 llapi_printf(LLAPI_MSG_NORMAL,
3033 "%s%d: { l_ost_idx: %d, l_fid: "DFID" }\n",
3034 space, i, idx, PFID(&fid));
3038 sprintf(fmt, "%s%s%s\n",
3039 "\t%6u\t%14llu\t%#13llx\t",
3040 (fid_seq_is_rsvd(gr) ||
3041 fid_seq_is_mdt0(gr)) ?
3042 "%14llu" : "%#14llx", "%s");
3043 llapi_printf(LLAPI_MSG_NORMAL, fmt, idx, oid,
3045 obdindex == idx ? " *" : "");
3049 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3052 void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
3053 char *path, int obdindex, int depth,
3054 enum llapi_layout_verbose verbose,
3055 enum lov_dump_flags flags)
3057 struct lmv_user_mds_data *objects = lum->lum_objects;
3058 char *prefix = lum->lum_magic == LMV_USER_MAGIC ? "(Default)" : "";
3059 char *separator = "";
3060 bool yaml = flags & LDF_YAML;
3061 bool obdstripe = false;
3064 if (obdindex != OBD_NOT_FOUND) {
3065 if (lum->lum_stripe_count == 0) {
3066 if (obdindex == lum->lum_stripe_offset)
3069 for (i = 0; i < lum->lum_stripe_count; i++) {
3070 if (obdindex == objects[i].lum_mds) {
3071 llapi_printf(LLAPI_MSG_NORMAL,
3086 /* show all information default */
3088 if (lum->lum_magic == LMV_USER_MAGIC)
3089 verbose = VERBOSE_POOL | VERBOSE_STRIPE_COUNT |
3090 VERBOSE_STRIPE_OFFSET | VERBOSE_HASH_TYPE;
3092 verbose = VERBOSE_OBJID;
3095 if (depth && path && ((verbose != VERBOSE_OBJID)))
3096 llapi_printf(LLAPI_MSG_NORMAL, "%s%s\n", prefix, path);
3098 if (verbose & VERBOSE_STRIPE_COUNT) {
3099 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3100 if (verbose & ~VERBOSE_STRIPE_COUNT)
3101 llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_count: ");
3102 llapi_printf(LLAPI_MSG_NORMAL, "%u",
3103 (int)lum->lum_stripe_count);
3104 if ((verbose & VERBOSE_STRIPE_OFFSET) && !yaml)
3110 if (verbose & VERBOSE_STRIPE_OFFSET) {
3111 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3112 if (verbose & ~VERBOSE_STRIPE_OFFSET)
3113 llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_offset: ");
3114 llapi_printf(LLAPI_MSG_NORMAL, "%d",
3115 (int)lum->lum_stripe_offset);
3116 if (verbose & VERBOSE_HASH_TYPE && !yaml)
3122 if (verbose & VERBOSE_HASH_TYPE) {
3123 unsigned int type = lum->lum_hash_type & LMV_HASH_TYPE_MASK;
3124 unsigned int flags = lum->lum_hash_type & ~LMV_HASH_TYPE_MASK;
3126 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3127 if (verbose & ~VERBOSE_HASH_TYPE)
3128 llapi_printf(LLAPI_MSG_NORMAL, "lmv_hash_type: ");
3129 if (type < LMV_HASH_TYPE_MAX)
3130 llapi_printf(LLAPI_MSG_NORMAL, "%s",
3131 mdt_hash_name[type]);
3133 llapi_printf(LLAPI_MSG_NORMAL, "%#x", type);
3135 if (flags & LMV_HASH_FLAG_MIGRATION)
3136 llapi_printf(LLAPI_MSG_NORMAL, ",migrating");
3137 if (flags & LMV_HASH_FLAG_BAD_TYPE)
3138 llapi_printf(LLAPI_MSG_NORMAL, ",bad_type");
3139 if (flags & LMV_HASH_FLAG_LOST_LMV)
3140 llapi_printf(LLAPI_MSG_NORMAL, ",lost_lmv");
3145 if (verbose & VERBOSE_OBJID && lum->lum_magic != LMV_USER_MAGIC) {
3146 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3147 if (lum->lum_stripe_count > 0)
3148 llapi_printf(LLAPI_MSG_NORMAL,
3149 "mdtidx\t\t FID[seq:oid:ver]\n");
3150 for (i = 0; i < lum->lum_stripe_count; i++) {
3151 int idx = objects[i].lum_mds;
3152 struct lu_fid *fid = &objects[i].lum_fid;
3154 if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
3155 llapi_printf(LLAPI_MSG_NORMAL,
3156 "%6u\t\t "DFID"\t\t%s\n",
3158 obdindex == idx ? " *" : "");
3162 if ((verbose & VERBOSE_POOL) && pool_name != NULL &&
3163 pool_name[0] != '\0') {
3164 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3165 if (verbose & ~VERBOSE_POOL)
3166 llapi_printf(LLAPI_MSG_NORMAL, "%slmv_pool: ",
3168 llapi_printf(LLAPI_MSG_NORMAL, "%s%c ", pool_name, ' ');
3172 if (!(verbose & VERBOSE_OBJID) || lum->lum_magic == LMV_USER_MAGIC)
3173 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3176 static void lov_dump_comp_v1_header(struct find_param *param, char *path,
3177 enum lov_dump_flags flags)
3179 struct lov_comp_md_v1 *comp_v1 = (void *)¶m->fp_lmd->lmd_lmm;
3180 int depth = param->fp_max_depth;
3181 enum llapi_layout_verbose verbose = param->fp_verbose;
3182 bool yaml = flags & LDF_YAML;
3184 if (depth && path && ((verbose != VERBOSE_OBJID) ||
3185 !(flags & LDF_IS_DIR)) && !yaml)
3186 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
3188 if (verbose & VERBOSE_DETAIL) {
3189 llapi_printf(LLAPI_MSG_NORMAL, "composite_header:\n");
3190 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_magic: 0x%08X\n",
3191 " ", comp_v1->lcm_magic);
3192 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_size: %u\n",
3193 " ", comp_v1->lcm_size);
3194 if (flags & LDF_IS_DIR)
3195 llapi_printf(LLAPI_MSG_NORMAL,
3196 "%2slcm_flags: %s\n", " ",
3197 comp_v1->lcm_mirror_count > 0 ?
3200 llapi_printf(LLAPI_MSG_NORMAL,
3201 "%2slcm_flags: %s\n", " ",
3202 llapi_layout_flags_string(comp_v1->lcm_flags));
3205 if (verbose & VERBOSE_GENERATION) {
3206 if (verbose & ~VERBOSE_GENERATION)
3207 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_layout_gen: ",
3209 llapi_printf(LLAPI_MSG_NORMAL, "%u\n", comp_v1->lcm_layout_gen);
3212 if (verbose & VERBOSE_MIRROR_COUNT) {
3213 if (verbose & ~VERBOSE_MIRROR_COUNT)
3214 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_mirror_count: ",
3216 llapi_printf(LLAPI_MSG_NORMAL, "%u\n",
3217 comp_v1->lcm_magic == LOV_USER_MAGIC_COMP_V1 ?
3218 comp_v1->lcm_mirror_count + 1 : 1);
3221 if (verbose & VERBOSE_COMP_COUNT) {
3222 if (verbose & ~VERBOSE_COMP_COUNT)
3223 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_entry_count: ",
3225 llapi_printf(LLAPI_MSG_NORMAL, "%u\n",
3226 comp_v1->lcm_magic == LOV_USER_MAGIC_COMP_V1 ?
3227 comp_v1->lcm_entry_count : 0);
3230 if (verbose & VERBOSE_DETAIL && !yaml)
3231 llapi_printf(LLAPI_MSG_NORMAL, "components:\n");
3234 static void lcme_flags2str(__u32 comp_flags)
3240 llapi_printf(LLAPI_MSG_NORMAL, "0");
3243 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
3244 if (comp_flags & comp_flags_table[i].cfn_flag) {
3246 llapi_printf(LLAPI_MSG_NORMAL, ",");
3247 llapi_printf(LLAPI_MSG_NORMAL, "%s",
3248 comp_flags_table[i].cfn_name);
3249 comp_flags &= ~comp_flags_table[i].cfn_flag;
3255 llapi_printf(LLAPI_MSG_NORMAL, ",");
3256 llapi_printf(LLAPI_MSG_NORMAL, "%#x", comp_flags);
3260 static void lov_dump_comp_v1_entry(struct find_param *param,
3261 enum lov_dump_flags flags, int index)
3263 struct lov_comp_md_v1 *comp_v1 = (void *)¶m->fp_lmd->lmd_lmm;
3264 struct lov_comp_md_entry_v1 *entry;
3265 char *separator = "";
3266 enum llapi_layout_verbose verbose = param->fp_verbose;
3267 bool yaml = flags & LDF_YAML;
3269 entry = &comp_v1->lcm_entries[index];
3272 llapi_printf(LLAPI_MSG_NORMAL, "%2scomponent%d:\n", " ", index);
3274 if (verbose & VERBOSE_COMP_ID) {
3275 if (verbose & VERBOSE_DETAIL && !yaml)
3276 llapi_printf(LLAPI_MSG_NORMAL,
3277 "%slcme_id: ", " - ");
3278 else if (verbose & ~VERBOSE_COMP_ID)
3279 llapi_printf(LLAPI_MSG_NORMAL,
3280 "%4slcme_id: ", " ");
3281 if (entry->lcme_id != LCME_ID_INVAL)
3282 llapi_printf(LLAPI_MSG_NORMAL, "%u", entry->lcme_id);
3284 llapi_printf(LLAPI_MSG_NORMAL, "N/A");
3288 if (verbose & VERBOSE_MIRROR_ID) {
3289 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3290 if (verbose & ~VERBOSE_MIRROR_ID)
3291 llapi_printf(LLAPI_MSG_NORMAL,
3292 "%4slcme_mirror_id: ", " ");
3293 if (entry->lcme_id != LCME_ID_INVAL)
3294 llapi_printf(LLAPI_MSG_NORMAL, "%u",
3295 mirror_id_of(entry->lcme_id));
3297 llapi_printf(LLAPI_MSG_NORMAL, "N/A");
3301 if (verbose & VERBOSE_COMP_FLAGS) {
3302 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3303 if (verbose & ~VERBOSE_COMP_FLAGS)
3304 llapi_printf(LLAPI_MSG_NORMAL,
3305 "%4slcme_flags: ", " ");
3306 lcme_flags2str(entry->lcme_flags);
3309 /* print snapshot timestamp if its a nosync comp */
3310 if ((verbose & VERBOSE_COMP_FLAGS) &&
3311 (entry->lcme_flags & LCME_FL_NOSYNC)) {
3312 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3313 if (verbose & ~VERBOSE_COMP_FLAGS)
3314 llapi_printf(LLAPI_MSG_NORMAL,
3315 "%4slcme_timestamp: ", " ");
3317 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
3318 (unsigned long long)entry->lcme_timestamp);
3320 time_t stamp = entry->lcme_timestamp;
3321 char *date_str = asctime(localtime(&stamp));
3323 date_str[strlen(date_str) - 1] = '\0';
3324 llapi_printf(LLAPI_MSG_NORMAL, "'%s'", date_str);
3330 if (verbose & VERBOSE_COMP_START) {
3331 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3332 if (verbose & ~VERBOSE_COMP_START)
3333 llapi_printf(LLAPI_MSG_NORMAL,
3334 "%4slcme_extent.e_start: ", " ");
3335 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
3336 (unsigned long long)entry->lcme_extent.e_start);
3340 if (verbose & VERBOSE_COMP_END) {
3341 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3342 if (verbose & ~VERBOSE_COMP_END)
3343 llapi_printf(LLAPI_MSG_NORMAL,
3344 "%4slcme_extent.e_end: ", " ");
3345 if (entry->lcme_extent.e_end == LUSTRE_EOF)
3346 llapi_printf(LLAPI_MSG_NORMAL, "%s", "EOF");
3348 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
3349 (unsigned long long)entry->lcme_extent.e_end);
3354 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3355 llapi_printf(LLAPI_MSG_NORMAL, "%4ssub_layout:\n", " ");
3356 } else if (verbose & VERBOSE_DETAIL) {
3357 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3358 llapi_printf(LLAPI_MSG_NORMAL, "%4slcme_offset: %u\n",
3359 " ", entry->lcme_offset);
3360 llapi_printf(LLAPI_MSG_NORMAL, "%4slcme_size: %u\n",
3361 " ", entry->lcme_size);
3362 llapi_printf(LLAPI_MSG_NORMAL, "%4ssub_layout:\n", " ");
3364 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3369 * Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
3370 * @mds indicates if this is MDS timestamps and there are attributes on OSTs.
3372 * The result is -1 if it does not match, 0 if not yet clear, 1 if matches.
3373 * The table below gives the answers for the specified parameters (value and
3374 * sign), 1st column is the answer for the MDS value, the 2nd is for the OST:
3375 * --------------------------------------
3376 * 1 | file > limit; sign > 0 | -1 / -1 |
3377 * 2 | file = limit; sign > 0 | -1 / -1 |
3378 * 3 | file < limit; sign > 0 | ? / 1 |
3379 * 4 | file > limit; sign = 0 | -1 / -1 |
3380 * 5 | file = limit; sign = 0 | ? / 1 | <- (see the Note below)
3381 * 6 | file < limit; sign = 0 | ? / -1 |
3382 * 7 | file > limit; sign < 0 | 1 / 1 |
3383 * 8 | file = limit; sign < 0 | ? / -1 |
3384 * 9 | file < limit; sign < 0 | ? / -1 |
3385 * --------------------------------------
3386 * Note: 5th actually means that the value is within the interval
3387 * (limit - margin, limit].
3389 static int find_value_cmp(unsigned long long file, unsigned long long limit,
3390 int sign, int negopt, unsigned long long margin,
3396 /* Drop the fraction of margin (of days or size). */
3397 if (file + margin <= limit)
3399 } else if (sign == 0) {
3400 if (file <= limit && file + margin > limit)
3402 else if (file + margin <= limit)
3404 } else if (sign < 0) {
3411 return negopt ? ~ret + 1 : ret;
3414 static inline struct lov_user_md *
3415 lov_comp_entry(struct lov_comp_md_v1 *comp_v1, int ent_idx)
3417 return (struct lov_user_md *)((char *)comp_v1 +
3418 comp_v1->lcm_entries[ent_idx].lcme_offset);
3421 static inline struct lov_user_ost_data_v1 *
3422 lov_v1v3_objects(struct lov_user_md *v1)
3424 if (v1->lmm_magic == LOV_USER_MAGIC_V3)
3425 return ((struct lov_user_md_v3 *)v1)->lmm_objects;
3427 return v1->lmm_objects;
3431 lov_v1v3_pool_name(struct lov_user_md *v1, char *pool_name)
3433 if (v1->lmm_magic == LOV_USER_MAGIC_V3)
3434 snprintf(pool_name, LOV_MAXPOOLNAME, "%s",
3435 ((struct lov_user_md_v3 *)v1)->lmm_pool_name);
3437 pool_name[0] = '\0';
3441 print_last_init_comp(struct find_param *param)
3443 /* print all component info */
3444 if ((param->fp_verbose & VERBOSE_DEFAULT) == VERBOSE_DEFAULT)
3447 /* print specific component info */
3448 if (param->fp_check_comp_id || param->fp_check_comp_flags ||
3449 param->fp_check_comp_start || param->fp_check_comp_end ||
3450 param->fp_check_mirror_id || param->fp_check_mirror_index)
3456 static int find_comp_end_cmp(unsigned long long end, struct find_param *param)
3460 if (param->fp_comp_end == LUSTRE_EOF) {
3461 if (param->fp_comp_end_sign == 0) /* equal to EOF */
3462 match = end == LUSTRE_EOF ? 1 : -1;
3463 else if (param->fp_comp_end_sign > 0) /* at most EOF */
3464 match = end == LUSTRE_EOF ? -1 : 1;
3465 else /* at least EOF */
3467 if (param->fp_exclude_comp_end)
3470 unsigned long long margin;
3472 margin = end == LUSTRE_EOF ? 0 : param->fp_comp_end_units;
3473 match = find_value_cmp(end, param->fp_comp_end,
3474 param->fp_comp_end_sign,
3475 param->fp_exclude_comp_end, margin, 0);
3482 * An example of "getstripe -v" for a two components PFL file:
3485 * lcm_magic: 0x0BD60BD0
3489 * lcm_entry_count: 2
3493 * lcme_extent.e_start: 0
3494 * lcme_extent.e_end: 1048576
3498 * lmm_magic: 0x0BD10BD0
3499 * lmm_seq: 0x200000401
3500 * lmm_object_id: 0x1
3501 * lmm_fid: [0x200000401:0x1:0x0]
3502 * lmm_stripe_count: 1
3503 * lmm_stripe_size: 1048576
3504 * lmm_pattern: raid0
3506 * lmm_stripe_offset: 0
3508 * - 0: { l_ost_idx: 0, l_fid: [0x100000000:0x2:0x0] }
3512 * lcme_extent.e_start: 1048576
3513 * lcme_extent.e_end: EOF
3517 * lmm_magic: 0x0BD10BD0
3518 * lmm_seq: 0x200000401
3519 * lmm_object_id: 0x1
3520 * lmm_fid: [0x200000401:0x1:0x0]
3521 * lmm_stripe_count: 2
3522 * lmm_stripe_size: 1048576
3523 * lmm_pattern: raid0
3525 * lmm_stripe_offset: 1
3527 * - 0: { l_ost_idx: 1, l_fid: [0x100010000:0x2:0x0] }
3528 * - 1: { l_ost_idx: 0, l_fid: [0x100000000:0x3:0x0] }
3530 static void lov_dump_comp_v1(struct find_param *param, char *path,
3531 enum lov_dump_flags flags)
3533 struct lov_comp_md_entry_v1 *entry;
3534 struct lov_user_ost_data_v1 *objects;
3535 struct lov_comp_md_v1 *comp_v1 = (void *)¶m->fp_lmd->lmd_lmm;
3536 struct lov_user_md_v1 *v1;
3537 char pool_name[LOV_MAXPOOLNAME + 1];
3538 int obdindex = param->fp_obd_index;
3539 int i, j, match, ext;
3540 bool obdstripe = false;
3541 __u16 mirror_index = 0;
3542 __u16 mirror_id = 0;
3544 if (obdindex != OBD_NOT_FOUND) {
3545 for (i = 0; !(flags & LDF_IS_DIR) && !obdstripe &&
3546 i < comp_v1->lcm_entry_count; i++) {
3547 if (!(comp_v1->lcm_entries[i].lcme_flags &
3551 v1 = lov_comp_entry(comp_v1, i);
3552 objects = lov_v1v3_objects(v1);
3554 for (j = 0; j < v1->lmm_stripe_count; j++) {
3555 if (obdindex == objects[j].l_ost_idx) {
3568 lov_dump_comp_v1_header(param, path, flags);
3570 flags |= LDF_INDENT;
3572 for (i = 0; i < comp_v1->lcm_entry_count; i++) {
3573 entry = &comp_v1->lcm_entries[i];
3575 if (param->fp_check_comp_flags) {
3576 if (((param->fp_comp_flags & entry->lcme_flags) !=
3577 param->fp_comp_flags) ||
3578 (param->fp_comp_neg_flags & entry->lcme_flags))
3582 if (param->fp_check_comp_id &&
3583 param->fp_comp_id != entry->lcme_id)
3586 if (param->fp_check_comp_start) {
3587 match = find_value_cmp(entry->lcme_extent.e_start,
3588 param->fp_comp_start,
3589 param->fp_comp_start_sign,
3591 param->fp_comp_start_units, 0);
3596 if (param->fp_check_comp_end) {
3597 match = find_comp_end_cmp(entry->lcme_extent.e_end,
3603 if (param->fp_check_mirror_index) {
3604 if (mirror_id != mirror_id_of(entry->lcme_id)) {
3606 mirror_id = mirror_id_of(entry->lcme_id);
3609 match = find_value_cmp(mirror_index,
3610 param->fp_mirror_index,
3611 param->fp_mirror_index_sign,
3612 param->fp_exclude_mirror_index,
3616 } else if (param->fp_check_mirror_id) {
3617 if (mirror_id != mirror_id_of(entry->lcme_id))
3618 mirror_id = mirror_id_of(entry->lcme_id);
3620 match = find_value_cmp(mirror_id,
3621 param->fp_mirror_id,
3622 param->fp_mirror_id_sign,
3623 param->fp_exclude_mirror_id,
3629 if (print_last_init_comp(param)) {
3631 * if part of stripe info is needed, we'd print only
3632 * the last instantiated component info.
3634 if (entry->lcme_flags & LCME_FL_INIT)
3637 if (param->fp_verbose & VERBOSE_EXT_SIZE) {
3638 if (entry->lcme_flags & LCME_FL_EXTENSION)
3639 /* moved back below */
3647 if (entry->lcme_flags & LCME_FL_INIT) {
3648 if (obdindex != OBD_NOT_FOUND) {
3649 flags |= LDF_SKIP_OBJS;
3650 v1 = lov_comp_entry(comp_v1, i);
3651 objects = lov_v1v3_objects(v1);
3653 for (j = 0; j < v1->lmm_stripe_count; j++) {
3654 if (obdindex == objects[j].l_ost_idx) {
3655 flags &= ~LDF_SKIP_OBJS;
3660 flags &= ~LDF_SKIP_OBJS;
3663 flags |= LDF_SKIP_OBJS;
3666 if (obdindex != OBD_NOT_FOUND && (flags & LDF_SKIP_OBJS))
3668 lov_dump_comp_v1_entry(param, flags, i);
3670 v1 = lov_comp_entry(comp_v1, i);
3671 objects = lov_v1v3_objects(v1);
3672 lov_v1v3_pool_name(v1, pool_name);
3674 ext = entry->lcme_flags & LCME_FL_EXTENSION ? LDF_EXTENSION : 0;
3675 lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
3676 param->fp_max_depth, param->fp_verbose,
3679 if (print_last_init_comp(param)) {
3681 * directory layout contains only layout template, print the
3685 i = comp_v1->lcm_entry_count - 1;
3688 flags &= ~LDF_SKIP_OBJS;
3690 lov_dump_comp_v1_entry(param, flags, i);
3692 v1 = lov_comp_entry(comp_v1, i);
3693 objects = lov_v1v3_objects(v1);
3694 lov_v1v3_pool_name(v1, pool_name);
3696 entry = &comp_v1->lcm_entries[i];
3697 ext = entry->lcme_flags & LCME_FL_EXTENSION ? LDF_EXTENSION : 0;
3698 lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
3699 param->fp_max_depth, param->fp_verbose,
3704 #define VERBOSE_COMP_OPTS (VERBOSE_COMP_COUNT | VERBOSE_COMP_ID | \
3705 VERBOSE_COMP_START | VERBOSE_COMP_END | \
3708 static inline bool has_any_comp_options(struct find_param *param)
3710 enum llapi_layout_verbose verbose = param->fp_verbose;
3712 if (param->fp_check_comp_id || param->fp_check_comp_count ||
3713 param->fp_check_comp_start || param->fp_check_comp_end ||
3714 param->fp_check_comp_flags)
3717 /* show full layout information, not component specific */
3718 if ((verbose & ~VERBOSE_DETAIL) == VERBOSE_DEFAULT)
3721 return verbose & VERBOSE_COMP_OPTS;
3724 struct lov_user_mds_data *lov_forge_comp_v1(struct lov_user_mds_data *orig,
3727 struct lov_user_md *lum = &orig->lmd_lmm;
3728 struct lov_user_mds_data *new;
3729 struct lov_comp_md_v1 *comp_v1;
3730 struct lov_comp_md_entry_v1 *ent;
3731 int lum_off = sizeof(*comp_v1) + sizeof(*ent);
3732 int lum_size = lov_user_md_size(is_dir ? 0 : lum->lmm_stripe_count,
3735 new = malloc(offsetof(typeof(*new), lmd_lmm) + lum_off + lum_size);
3737 llapi_printf(LLAPI_MSG_NORMAL, "out of memory\n");
3741 memcpy(new, orig, sizeof(new->lmd_stx) + sizeof(new->lmd_flags)
3742 + sizeof(new->lmd_lmmsize));
3744 comp_v1 = (struct lov_comp_md_v1 *)&new->lmd_lmm;
3745 comp_v1->lcm_magic = lum->lmm_magic;
3746 comp_v1->lcm_size = lum_off + lum_size;
3747 comp_v1->lcm_layout_gen = is_dir ? 0 : lum->lmm_layout_gen;
3748 comp_v1->lcm_flags = 0;
3749 comp_v1->lcm_entry_count = 1;
3751 ent = &comp_v1->lcm_entries[0];
3753 ent->lcme_flags = is_dir ? 0 : LCME_FL_INIT;
3754 ent->lcme_extent.e_start = 0;
3755 ent->lcme_extent.e_end = LUSTRE_EOF;
3756 ent->lcme_offset = lum_off;
3757 ent->lcme_size = lum_size;
3759 memcpy((char *)comp_v1 + lum_off, lum, lum_size);
3764 static void lov_dump_plain_user_lmm(struct find_param *param, char *path,
3765 enum lov_dump_flags flags)
3767 __u32 magic = *(__u32 *)¶m->fp_lmd->lmd_lmm;
3769 if (has_any_comp_options(param)) {
3770 struct lov_user_mds_data *new_lmd, *orig_lmd;
3772 orig_lmd = param->fp_lmd;
3773 new_lmd = lov_forge_comp_v1(orig_lmd, flags & LDF_IS_DIR);
3774 if (new_lmd != NULL) {
3775 param->fp_lmd = new_lmd;
3776 lov_dump_comp_v1(param, path, flags);
3777 param->fp_lmd = orig_lmd;
3783 if (magic == LOV_USER_MAGIC_V1) {
3784 lov_dump_user_lmm_v1v3(¶m->fp_lmd->lmd_lmm, NULL,
3785 param->fp_lmd->lmd_lmm.lmm_objects,
3786 path, param->fp_obd_index,
3787 param->fp_max_depth, param->fp_verbose,
3790 char pool_name[LOV_MAXPOOLNAME + 1];
3791 struct lov_user_ost_data_v1 *objects;
3792 struct lov_user_md_v3 *lmmv3 = (void *)¶m->fp_lmd->lmd_lmm;
3794 snprintf(pool_name, sizeof(pool_name), "%s",
3795 lmmv3->lmm_pool_name);
3796 objects = lmmv3->lmm_objects;
3797 lov_dump_user_lmm_v1v3(¶m->fp_lmd->lmd_lmm, pool_name,
3798 objects, path, param->fp_obd_index,
3799 param->fp_max_depth, param->fp_verbose,
3804 static uint32_t check_foreign_type(uint32_t foreign_type)
3808 for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
3809 if (lu_foreign_types[i].lft_name == NULL)
3811 if (foreign_type == lu_foreign_types[i].lft_type)
3815 return LU_FOREIGN_TYPE_UNKNOWN;
3818 static void lov_dump_foreign_lmm(struct find_param *param, char *path,
3819 enum lov_dump_flags flags)
3821 struct lov_foreign_md *lfm = (void *)¶m->fp_lmd->lmd_lmm;
3822 bool yaml = flags & LDF_YAML;
3824 if (!yaml && param->fp_depth && path)
3825 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
3827 if (param->fp_verbose & VERBOSE_DETAIL) {
3828 uint32_t type = check_foreign_type(lfm->lfm_type);
3830 llapi_printf(LLAPI_MSG_NORMAL, "lfm_magic: 0x%08X\n",
3832 llapi_printf(LLAPI_MSG_NORMAL, "lfm_length: %u\n",
3834 llapi_printf(LLAPI_MSG_NORMAL, "lfm_type: 0x%08X",
3836 if (type < LU_FOREIGN_TYPE_UNKNOWN)
3837 llapi_printf(LLAPI_MSG_NORMAL, " (%s)\n",
3838 lu_foreign_types[type].lft_name);
3840 llapi_printf(LLAPI_MSG_NORMAL, " (unknown)\n");
3842 llapi_printf(LLAPI_MSG_NORMAL, "lfm_flags: 0x%08X\n",
3845 llapi_printf(LLAPI_MSG_NORMAL, "lfm_value: '%.*s'\n",
3846 lfm->lfm_length, lfm->lfm_value);
3847 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3850 static void lmv_dump_foreign_lmm(struct find_param *param, char *path,
3851 enum lov_dump_flags flags)
3853 struct lmv_foreign_md *lfm = (struct lmv_foreign_md *)param->fp_lmv_md;
3854 bool yaml = flags & LDF_YAML;
3856 if (!yaml && param->fp_depth && path)
3857 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
3859 if (param->fp_verbose & VERBOSE_DETAIL) {
3860 uint32_t type = check_foreign_type(lfm->lfm_type);
3862 llapi_printf(LLAPI_MSG_NORMAL, "lfm_magic: 0x%08X\n",
3864 llapi_printf(LLAPI_MSG_NORMAL, "lfm_length: %u\n",
3866 llapi_printf(LLAPI_MSG_NORMAL, "lfm_type: 0x%08X",
3868 if (type < LU_FOREIGN_TYPE_UNKNOWN)
3869 llapi_printf(LLAPI_MSG_NORMAL, " (%s)\n",
3870 lu_foreign_types[type].lft_name);
3872 llapi_printf(LLAPI_MSG_NORMAL, " (unknown)\n");
3874 llapi_printf(LLAPI_MSG_NORMAL, "lfm_flags: 0x%08X\n",
3877 llapi_printf(LLAPI_MSG_NORMAL, "lfm_value: '%.*s'\n",
3878 lfm->lfm_length, lfm->lfm_value);
3879 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3882 static void llapi_lov_dump_user_lmm(struct find_param *param, char *path,
3883 enum lov_dump_flags flags)
3887 if (param->fp_get_lmv || param->fp_get_default_lmv)
3888 magic = (__u32)param->fp_lmv_md->lum_magic;
3890 magic = *(__u32 *)¶m->fp_lmd->lmd_lmm; /* lum->lmm_magic */
3893 flags |= LDF_IS_RAW;
3898 case LOV_USER_MAGIC_V1:
3899 case LOV_USER_MAGIC_V3:
3900 case LOV_USER_MAGIC_SPECIFIC:
3901 lov_dump_plain_user_lmm(param, path, flags);
3903 case LOV_USER_MAGIC_FOREIGN:
3904 lov_dump_foreign_lmm(param, path, flags);
3907 case LMV_USER_MAGIC: {
3908 char pool_name[LOV_MAXPOOLNAME + 1];
3909 struct lmv_user_md *lum;
3911 lum = (struct lmv_user_md *)param->fp_lmv_md;
3912 snprintf(pool_name, sizeof(pool_name), "%s",
3913 lum->lum_pool_name);
3914 lmv_dump_user_lmm(lum, pool_name, path, param->fp_obd_index,
3915 param->fp_max_depth, param->fp_verbose,
3919 case LOV_USER_MAGIC_COMP_V1:
3920 lov_dump_comp_v1(param, path, flags);
3922 case LMV_MAGIC_FOREIGN:
3923 lmv_dump_foreign_lmm(param, path, flags);
3926 llapi_printf(LLAPI_MSG_NORMAL,
3927 "unknown lmm_magic: %#x (expecting one of %#x %#x %#x %#x)\n",
3928 *(__u32 *)¶m->fp_lmd->lmd_lmm,
3929 LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3,
3930 LMV_USER_MAGIC, LMV_MAGIC_V1);
3935 int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
3941 fname = strrchr(path, '/');
3943 /* It should be a file (or other non-directory) */
3944 if (fname == NULL) {
3945 dname = (char *)malloc(2);
3949 fname = (char *)path;
3951 dname = (char *)malloc(fname - path + 1);
3954 strncpy(dname, path, fname - path);
3955 dname[fname - path] = '\0';
3959 fd = open(dname, O_RDONLY | O_NONBLOCK);
3965 strcpy((char *)lum, fname);
3966 if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
3969 if (close(fd) == -1 && rc == 0)
3977 int llapi_file_lookup(int dirfd, const char *name)
3979 struct obd_ioctl_data data = { 0 };
3984 if (dirfd < 0 || name == NULL)
3987 data.ioc_version = OBD_IOCTL_VERSION;
3988 data.ioc_len = sizeof(data);
3989 data.ioc_inlbuf1 = (char *)name;
3990 data.ioc_inllen1 = strlen(name) + 1;
3992 rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
3994 llapi_error(LLAPI_MSG_ERROR, rc,
3995 "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
4000 rc = ioctl(dirfd, IOC_MDC_LOOKUP, buf);
4007 * Check if the file time matches all the given criteria (e.g. --atime +/-N).
4008 * Return -1 or 1 if file timestamp does not or does match the given criteria
4009 * correspondingly. Return 0 if the MDS time is being checked and there are
4010 * attributes on OSTs and it is not yet clear if the timespamp matches.
4012 * If 0 is returned, we need to do another RPC to the OSTs to obtain the
4013 * updated timestamps.
4015 static int find_time_check(struct find_param *param, int mds)
4017 struct lov_user_mds_data *lmd = param->fp_lmd;
4021 /* Check if file is accepted. */
4022 if (param->fp_atime) {
4023 rc2 = find_value_cmp(lmd->lmd_stx.stx_atime.tv_sec,
4024 param->fp_atime, param->fp_asign,
4025 param->fp_exclude_atime,
4026 param->fp_time_margin, mds);
4032 if (param->fp_mtime) {
4033 rc2 = find_value_cmp(lmd->lmd_stx.stx_mtime.tv_sec,
4034 param->fp_mtime, param->fp_msign,
4035 param->fp_exclude_mtime,
4036 param->fp_time_margin, mds);
4041 * If the previous check matches, but this one is not yet clear,
4042 * we should return 0 to do an RPC on OSTs.
4048 if (param->fp_ctime) {
4049 rc2 = find_value_cmp(lmd->lmd_stx.stx_ctime.tv_sec,
4050 param->fp_ctime, param->fp_csign,
4051 param->fp_exclude_ctime,
4052 param->fp_time_margin, mds);
4057 * If the previous check matches, but this one is not yet clear,
4058 * we should return 0 to do an RPC on OSTs.
4067 static int find_newerxy_check(struct find_param *param, int mds, bool from_mdt)
4069 struct lov_user_mds_data *lmd = param->fp_lmd;
4074 for (i = 0; i < 2; i++) {
4075 /* Check if file is accepted. */
4076 if (param->fp_newery[NEWERXY_ATIME][i]) {
4077 rc2 = find_value_cmp(lmd->lmd_stx.stx_atime.tv_sec,
4078 param->fp_newery[NEWERXY_ATIME][i],
4085 if (param->fp_newery[NEWERXY_MTIME][i]) {
4086 rc2 = find_value_cmp(lmd->lmd_stx.stx_mtime.tv_sec,
4087 param->fp_newery[NEWERXY_MTIME][i],
4093 * If the previous check matches, but this one is not
4094 * yet clear, we should return 0 to do an RPC on OSTs.
4100 if (param->fp_newery[NEWERXY_CTIME][i]) {
4101 rc2 = find_value_cmp(lmd->lmd_stx.stx_ctime.tv_sec,
4102 param->fp_newery[NEWERXY_CTIME][i],
4108 * If the previous check matches, but this one is not
4109 * yet clear, we should return 0 to do an RPC on OSTs.
4116 * File birth time (btime) can get from MDT directly.
4117 * if @from_mdt is true, it means the input file attributs are
4118 * obtained directly from MDT.
4119 * Thus, if @from_mdt is false, we should skip the following
4125 if (param->fp_newery[NEWERXY_BTIME][i]) {
4126 if (!(lmd->lmd_stx.stx_mask & STATX_BTIME))
4129 rc2 = find_value_cmp(lmd->lmd_stx.stx_btime.tv_sec,
4130 param->fp_newery[NEWERXY_BTIME][i],
4141 * Check whether the stripes matches the indexes user provided
4145 static int check_obd_match(struct find_param *param)
4147 struct lov_user_ost_data_v1 *objects;
4148 struct lov_comp_md_v1 *comp_v1 = NULL;
4149 struct lov_user_mds_data *lmd = param->fp_lmd;
4150 struct lov_user_md_v1 *v1 = &lmd->lmd_lmm;
4151 int i, j, k, count = 1;
4153 if (param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND)
4156 if (!S_ISREG(lmd->lmd_stx.stx_mode))
4159 /* exclude foreign */
4160 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4161 return param->fp_exclude_obd;
4164 * Only those files should be accepted, which have a
4165 * stripe on the specified OST.
4167 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4168 comp_v1 = (struct lov_comp_md_v1 *)v1;
4169 count = comp_v1->lcm_entry_count;
4172 for (i = 0; i < count; i++) {
4174 v1 = lov_comp_entry(comp_v1, i);
4176 objects = lov_v1v3_objects(v1);
4178 for (j = 0; j < v1->lmm_stripe_count; j++) {
4179 if (comp_v1 && !(comp_v1->lcm_entries[i].lcme_flags &
4182 for (k = 0; k < param->fp_num_obds; k++) {
4183 if (param->fp_obd_indexes[k] ==
4184 objects[j].l_ost_idx)
4185 return !param->fp_exclude_obd;
4190 return param->fp_exclude_obd;
4193 static int check_mdt_match(struct find_param *param)
4197 if (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND)
4200 /* FIXME: For striped dir, we should get stripe information and check */
4201 for (i = 0; i < param->fp_num_mdts; i++) {
4202 if (param->fp_mdt_indexes[i] == param->fp_file_mdt_index)
4203 return !param->fp_exclude_mdt;
4206 if (param->fp_exclude_mdt)
4213 * Check whether the obd is active or not, if it is
4214 * not active, just print the object affected by this
4217 static void print_failed_tgt(struct find_param *param, char *path, int type)
4219 struct obd_statfs stat_buf;
4220 struct obd_uuid uuid_buf;
4221 int tgt_nr, i, *indexes;
4224 if (type != LL_STATFS_LOV && type != LL_STATFS_LMV) {
4225 llapi_error(LLAPI_MSG_NORMAL, ret, "%s: wrong statfs type(%d)",
4230 tgt_nr = (type == LL_STATFS_LOV) ? param->fp_obd_index :
4231 param->fp_mdt_index;
4232 indexes = (type == LL_STATFS_LOV) ? param->fp_obd_indexes :
4233 param->fp_mdt_indexes;
4235 for (i = 0; i < tgt_nr; i++) {
4236 memset(&stat_buf, 0, sizeof(struct obd_statfs));
4237 memset(&uuid_buf, 0, sizeof(struct obd_uuid));
4239 ret = llapi_obd_statfs(path, type, indexes[i], &stat_buf,
4242 llapi_error(LLAPI_MSG_NORMAL, ret,
4243 "%s: obd_uuid: %s failed",
4244 __func__, param->fp_obd_uuid->uuid);
4248 static int find_check_stripe_size(struct find_param *param)
4250 struct lov_comp_md_v1 *comp_v1 = NULL;
4251 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4252 __u32 stripe_size = 0;
4253 int ret, i, count = 1;
4255 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4256 return param->fp_exclude_stripe_size ? 1 : -1;
4258 ret = param->fp_exclude_stripe_size ? 1 : -1;
4259 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4260 comp_v1 = (struct lov_comp_md_v1 *)v1;
4261 count = comp_v1->lcm_entry_count;
4264 for (i = 0; i < count; i++) {
4265 struct lov_comp_md_entry_v1 *ent;
4268 v1 = lov_comp_entry(comp_v1, i);
4270 ent = &comp_v1->lcm_entries[i];
4271 if (ent->lcme_flags & LCME_FL_EXTENSION)
4273 if (!(ent->lcme_flags & LCME_FL_INIT))
4276 stripe_size = v1->lmm_stripe_size;
4279 ret = find_value_cmp(stripe_size, param->fp_stripe_size,
4280 param->fp_stripe_size_sign,
4281 param->fp_exclude_stripe_size,
4282 param->fp_stripe_size_units, 0);
4287 static int find_check_ext_size(struct find_param *param)
4289 struct lov_comp_md_v1 *comp_v1;
4290 struct lov_user_md_v1 *v1;
4293 ret = param->fp_exclude_ext_size ? 1 : -1;
4294 comp_v1 = (struct lov_comp_md_v1 *)¶m->fp_lmd->lmd_lmm;
4295 if (comp_v1->lcm_magic != LOV_USER_MAGIC_COMP_V1)
4298 for (i = 0; i < comp_v1->lcm_entry_count; i++) {
4299 struct lov_comp_md_entry_v1 *ent;
4301 v1 = lov_comp_entry(comp_v1, i);
4303 ent = &comp_v1->lcm_entries[i];
4304 if (!(ent->lcme_flags & LCME_FL_EXTENSION))
4307 ret = find_value_cmp(v1->lmm_stripe_size, param->fp_ext_size,
4308 param->fp_ext_size_sign,
4309 param->fp_exclude_ext_size,
4310 param->fp_ext_size_units, 0);
4311 /* If any ext_size matches */
4319 static __u32 find_get_stripe_count(struct find_param *param)
4321 struct lov_comp_md_v1 *comp_v1 = NULL;
4322 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4324 __u32 stripe_count = 0;
4326 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4329 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4330 comp_v1 = (struct lov_comp_md_v1 *)v1;
4331 count = comp_v1->lcm_entry_count;
4334 for (i = 0; i < count; i++) {
4336 struct lov_comp_md_entry_v1 *ent;
4338 v1 = lov_comp_entry(comp_v1, i);
4340 ent = &comp_v1->lcm_entries[i];
4341 if (!(ent->lcme_flags & LCME_FL_INIT))
4344 if (ent->lcme_flags & LCME_FL_EXTENSION)
4347 stripe_count = v1->lmm_stripe_count;
4350 return stripe_count;
4353 #define LOV_PATTERN_INVALID 0xFFFFFFFF
4355 static int find_check_layout(struct find_param *param)
4357 struct lov_comp_md_v1 *comp_v1 = NULL;
4358 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4360 bool found = false, valid = false;
4362 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4363 comp_v1 = (struct lov_comp_md_v1 *)v1;
4364 count = comp_v1->lcm_entry_count;
4367 for (i = 0; i < count; i++) {
4369 v1 = lov_comp_entry(comp_v1, i);
4371 /* foreign file have a special magic but no pattern field */
4372 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4375 if (v1->lmm_pattern == LOV_PATTERN_INVALID)
4379 if (v1->lmm_pattern & param->fp_layout) {
4388 if ((found && !param->fp_exclude_layout) ||
4389 (!found && param->fp_exclude_layout))
4396 * if no type specified, check/exclude all foreign
4397 * if type specified, check all foreign&type and exclude !foreign + foreign&type
4399 static int find_check_foreign(struct find_param *param)
4401 if (S_ISREG(param->fp_lmd->lmd_stx.stx_mode)) {
4402 struct lov_foreign_md *lfm;
4404 lfm = (void *)¶m->fp_lmd->lmd_lmm;
4405 if (lfm->lfm_magic != LOV_USER_MAGIC_FOREIGN) {
4406 if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN)
4407 return param->fp_exclude_foreign ? 1 : -1;
4411 if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN ||
4412 lfm->lfm_type == param->fp_foreign_type)
4413 return param->fp_exclude_foreign ? -1 : 1;
4414 return param->fp_exclude_foreign ? 1 : -1;
4417 if (S_ISDIR(param->fp_lmd->lmd_stx.stx_mode)) {
4418 struct lmv_foreign_md *lfm;
4420 lfm = (void *)param->fp_lmv_md;
4421 if (lfm->lfm_magic != LMV_MAGIC_FOREIGN) {
4422 if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN)
4423 return param->fp_exclude_foreign ? 1 : -1;
4427 if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN ||
4428 lfm->lfm_type == param->fp_foreign_type)
4429 return param->fp_exclude_foreign ? -1 : 1;
4430 return param->fp_exclude_foreign ? 1 : -1;
4435 static int find_check_pool(struct find_param *param)
4437 struct lov_comp_md_v1 *comp_v1 = NULL;
4438 struct lov_user_md_v3 *v3 = (void *)¶m->fp_lmd->lmd_lmm;
4442 if (v3->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4443 comp_v1 = (struct lov_comp_md_v1 *)v3;
4444 count = comp_v1->lcm_entry_count;
4445 /* empty requested pool is taken as no pool search */
4446 if (count == 0 && param->fp_poolname[0] == '\0') {
4452 for (i = 0; i < count; i++) {
4453 if (comp_v1 != NULL) {
4454 if (!(comp_v1->lcm_entries[i].lcme_flags &
4458 v3 = (void *)lov_comp_entry(comp_v1, i);
4461 if (v3->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4464 if (((v3->lmm_magic == LOV_USER_MAGIC_V1) &&
4465 (param->fp_poolname[0] == '\0')) ||
4466 ((v3->lmm_magic == LOV_USER_MAGIC_V3) &&
4467 (strncmp(v3->lmm_pool_name,
4468 param->fp_poolname, LOV_MAXPOOLNAME) == 0)) ||
4469 ((v3->lmm_magic == LOV_USER_MAGIC_V3) &&
4470 (strcmp(param->fp_poolname, "*") == 0))) {
4477 if ((found && !param->fp_exclude_pool) ||
4478 (!found && param->fp_exclude_pool))
4484 static int find_check_comp_options(struct find_param *param)
4486 struct lov_comp_md_v1 *comp_v1, *forged_v1 = NULL;
4487 struct lov_user_mds_data *lmd = param->fp_lmd;
4488 struct lov_user_md_v1 *v1 = &lmd->lmd_lmm;
4489 struct lov_comp_md_entry_v1 *entry;
4492 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4495 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4496 comp_v1 = (struct lov_comp_md_v1 *)v1;
4498 forged_v1 = malloc(sizeof(*forged_v1) + sizeof(*entry));
4499 if (forged_v1 == NULL)
4501 comp_v1 = forged_v1;
4502 comp_v1->lcm_entry_count = 1;
4503 entry = &comp_v1->lcm_entries[0];
4504 entry->lcme_flags = S_ISDIR(lmd->lmd_stx.stx_mode) ?
4506 entry->lcme_extent.e_start = 0;
4507 entry->lcme_extent.e_end = LUSTRE_EOF;
4510 /* invalid case, don't match for any kind of search. */
4511 if (comp_v1->lcm_entry_count == 0) {
4516 if (param->fp_check_comp_count) {
4517 ret = find_value_cmp(forged_v1 ? 0 : comp_v1->lcm_entry_count,
4518 param->fp_comp_count,
4519 param->fp_comp_count_sign,
4520 param->fp_exclude_comp_count, 1, 0);
4526 for (i = 0; i < comp_v1->lcm_entry_count; i++) {
4527 entry = &comp_v1->lcm_entries[i];
4529 if (param->fp_check_comp_flags) {
4531 if (((param->fp_comp_flags & entry->lcme_flags) !=
4532 param->fp_comp_flags) ||
4533 (param->fp_comp_neg_flags & entry->lcme_flags)) {
4539 if (param->fp_check_comp_start) {
4540 ret = find_value_cmp(entry->lcme_extent.e_start,
4541 param->fp_comp_start,
4542 param->fp_comp_start_sign,
4543 param->fp_exclude_comp_start,
4544 param->fp_comp_start_units, 0);
4549 if (param->fp_check_comp_end) {
4550 ret = find_comp_end_cmp(entry->lcme_extent.e_end,
4556 /* the component matches all criteria */
4565 static int find_check_mirror_options(struct find_param *param)
4567 struct lov_comp_md_v1 *comp_v1;
4568 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4571 if (v1->lmm_magic != LOV_USER_MAGIC_COMP_V1)
4574 comp_v1 = (struct lov_comp_md_v1 *)v1;
4576 if (param->fp_check_mirror_count) {
4577 ret = find_value_cmp(comp_v1->lcm_mirror_count + 1,
4578 param->fp_mirror_count,
4579 param->fp_mirror_count_sign,
4580 param->fp_exclude_mirror_count, 1, 0);
4585 if (param->fp_check_mirror_state) {
4587 __u16 file_state = comp_v1->lcm_flags & LCM_FL_FLR_MASK;
4589 if ((param->fp_mirror_state != 0 &&
4590 file_state != param->fp_mirror_state) ||
4591 file_state == param->fp_mirror_neg_state)
4598 static bool find_check_lmm_info(struct find_param *param)
4600 return param->fp_check_pool || param->fp_check_stripe_count ||
4601 param->fp_check_stripe_size || param->fp_check_layout ||
4602 param->fp_check_comp_count || param->fp_check_comp_end ||
4603 param->fp_check_comp_start || param->fp_check_comp_flags ||
4604 param->fp_check_mirror_count || param->fp_check_foreign ||
4605 param->fp_check_mirror_state || param->fp_check_ext_size ||
4606 param->fp_check_projid;
4610 * Get file/directory project id.
4611 * by the open fd resides on.
4612 * Return 0 and project id on success, or -ve errno.
4614 static int fget_projid(int fd, int *projid)
4619 rc = ioctl(fd, FS_IOC_FSGETXATTR, &fsx);
4623 *projid = fsx.fsx_projid;
4627 static int cb_find_init(char *path, DIR *parent, DIR **dirp,
4628 void *data, struct dirent64 *de)
4630 struct find_param *param = (struct find_param *)data;
4631 struct lov_user_mds_data *lmd = param->fp_lmd;
4632 DIR *dir = dirp == NULL ? NULL : *dirp;
4633 int decision = 1; /* 1 is accepted; -1 is rejected. */
4635 int checked_type = 0;
4637 __u32 stripe_count = 0;
4641 if (parent == NULL && dir == NULL)
4644 /* If a regular expression is presented, make the initial decision */
4645 if (param->fp_pattern != NULL) {
4646 char *fname = strrchr(path, '/');
4648 fname = (fname == NULL ? path : fname + 1);
4649 ret = fnmatch(param->fp_pattern, fname, 0);
4650 if ((ret == FNM_NOMATCH && !param->fp_exclude_pattern) ||
4651 (ret == 0 && param->fp_exclude_pattern))
4655 /* See if we can check the file type from the dirent. */
4656 if (param->fp_type != 0 && de != NULL && de->d_type != DT_UNKNOWN) {
4659 if (DTTOIF(de->d_type) == param->fp_type) {
4660 if (param->fp_exclude_type)
4663 if (!param->fp_exclude_type)
4671 * Request MDS for the stat info if some of these parameters need
4674 if (param->fp_obd_uuid || param->fp_mdt_uuid ||
4675 param->fp_check_uid || param->fp_check_gid ||
4676 param->fp_newerxy || param->fp_btime ||
4677 param->fp_atime || param->fp_mtime || param->fp_ctime ||
4678 param->fp_check_size || param->fp_check_blocks ||
4679 find_check_lmm_info(param) ||
4680 param->fp_check_mdt_count || param->fp_check_hash_type)
4683 if (param->fp_type != 0 && checked_type == 0)
4686 if (decision == 0) {
4687 if (dir && (param->fp_check_mdt_count ||
4688 param->fp_check_hash_type || param->fp_check_foreign)) {
4689 param->fp_get_lmv = 1;
4690 ret = cb_get_dirstripe(path, dir, param);
4693 * XXX this works to decide for foreign
4696 if (errno == ENODATA &&
4697 param->fp_check_foreign) {
4698 if (param->fp_exclude_foreign)
4706 param->fp_lmd->lmd_lmm.lmm_magic = 0;
4707 ret = get_lmd_info(path, parent, dir, param->fp_lmd,
4708 param->fp_lum_size, GET_LMD_INFO);
4709 if (ret == 0 && param->fp_lmd->lmd_lmm.lmm_magic == 0 &&
4710 find_check_lmm_info(param)) {
4711 struct lov_user_md *lmm = ¶m->fp_lmd->lmd_lmm;
4714 * We need to "fake" the "use the default" values
4715 * since the lmm struct is zeroed out at this point.
4717 lmm->lmm_magic = LOV_USER_MAGIC_V1;
4718 lmm->lmm_pattern = LOV_PATTERN_DEFAULT;
4720 ostid_set_seq(&lmm->lmm_oi,
4721 FID_SEQ_LOV_DEFAULT);
4722 lmm->lmm_stripe_size = 0;
4723 lmm->lmm_stripe_count = 0;
4724 lmm->lmm_stripe_offset = -1;
4726 if (ret == 0 && param->fp_mdt_uuid != NULL) {
4728 ret = llapi_file_fget_mdtidx(dirfd(dir),
4729 ¶m->fp_file_mdt_index);
4730 } else if (S_ISREG(lmd->lmd_stx.stx_mode)) {
4732 * FIXME: we could get the MDT index from the
4733 * file's FID in lmd->lmd_lmm.lmm_oi without
4734 * opening the file, once we are sure that
4735 * LFSCK2 (2.6) has fixed up pre-2.0 LOV EAs.
4736 * That would still be an ioctl() to map the
4737 * FID to the MDT, but not an open RPC.
4739 fd = open(path, O_RDONLY);
4741 ret = llapi_file_fget_mdtidx(fd,
4742 ¶m->fp_file_mdt_index);
4748 * For a special file, we assume it resides on
4749 * the same MDT as the parent directory.
4751 ret = llapi_file_fget_mdtidx(dirfd(parent),
4752 ¶m->fp_file_mdt_index);
4763 stripe_count = find_get_stripe_count(param);
4767 if (param->fp_type && !checked_type) {
4768 if ((lmd->lmd_stx.stx_mode & S_IFMT) == param->fp_type) {
4769 if (param->fp_exclude_type)
4772 if (!param->fp_exclude_type)
4778 if (param->fp_obd_uuid || param->fp_mdt_uuid) {
4779 if (lustre_fs && param->fp_got_uuids &&
4780 param->fp_dev != makedev(lmd->lmd_stx.stx_dev_major,
4781 lmd->lmd_stx.stx_dev_minor)) {
4782 /* A lustre/lustre mount point is crossed. */
4783 param->fp_got_uuids = 0;
4784 param->fp_obds_printed = 0;
4785 param->fp_mdt_index = OBD_NOT_FOUND;
4786 param->fp_obd_index = OBD_NOT_FOUND;
4789 if (lustre_fs && !param->fp_got_uuids) {
4790 ret = setup_target_indexes(dir ? dir : parent, path,
4795 param->fp_dev = makedev(lmd->lmd_stx.stx_dev_major,
4796 lmd->lmd_stx.stx_dev_minor);
4797 } else if (!lustre_fs && param->fp_got_uuids) {
4798 /* A lustre/non-lustre mount point is crossed. */
4799 param->fp_got_uuids = 0;
4800 param->fp_mdt_index = OBD_NOT_FOUND;
4801 param->fp_obd_index = OBD_NOT_FOUND;
4805 if (param->fp_check_foreign) {
4806 decision = find_check_foreign(param);
4811 if (param->fp_check_stripe_size) {
4812 decision = find_check_stripe_size(param);
4817 if (param->fp_check_ext_size) {
4818 decision = find_check_ext_size(param);
4823 if (param->fp_check_stripe_count) {
4824 decision = find_value_cmp(stripe_count, param->fp_stripe_count,
4825 param->fp_stripe_count_sign,
4826 param->fp_exclude_stripe_count, 1, 0);
4831 if (param->fp_check_mdt_count) {
4832 if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
4837 decision = find_value_cmp(
4838 param->fp_lmv_md->lum_stripe_count,
4839 param->fp_mdt_count,
4840 param->fp_mdt_count_sign,
4841 param->fp_exclude_mdt_count, 1, 0);
4846 if (param->fp_check_layout) {
4847 decision = find_check_layout(param);
4852 if (param->fp_check_hash_type) {
4855 if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
4860 found = param->fp_lmv_md->lum_hash_type & param->fp_hash_type;
4861 if ((found && param->fp_exclude_hash_type) ||
4862 (!found && !param->fp_exclude_hash_type)) {
4868 /* If an OBD UUID is specified but none matches, skip this file. */
4869 if ((param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND) ||
4870 (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND))
4874 * If an OST or MDT UUID is given, and some OST matches,
4877 if (param->fp_obd_index != OBD_NOT_FOUND ||
4878 param->fp_mdt_index != OBD_NOT_FOUND) {
4879 if (param->fp_obd_uuid) {
4880 if (check_obd_match(param)) {
4882 * If no mdtuuid is given, we are done.
4883 * Otherwise, fall through to the mdtuuid
4886 if (!param->fp_mdt_uuid)
4893 if (param->fp_mdt_uuid) {
4894 if (check_mdt_match(param))
4901 if (param->fp_check_uid) {
4902 if (lmd->lmd_stx.stx_uid == param->fp_uid) {
4903 if (param->fp_exclude_uid)
4906 if (!param->fp_exclude_uid)
4911 if (param->fp_check_gid) {
4912 if (lmd->lmd_stx.stx_gid == param->fp_gid) {
4913 if (param->fp_exclude_gid)
4916 if (!param->fp_exclude_gid)
4921 if (param->fp_check_projid) {
4925 fd = open(path, O_RDONLY);
4928 ret = fget_projid(fd, &projid);
4933 if (projid == param->fp_projid) {
4934 if (param->fp_exclude_projid)
4937 if (!param->fp_exclude_projid)
4942 if (param->fp_check_pool) {
4943 decision = find_check_pool(param);
4948 if (param->fp_check_comp_count || param->fp_check_comp_flags ||
4949 param->fp_check_comp_start || param->fp_check_comp_end) {
4950 decision = find_check_comp_options(param);
4955 if (param->fp_check_mirror_count || param->fp_check_mirror_state) {
4956 decision = find_check_mirror_options(param);
4961 /* Check the time on mds. */
4963 if (param->fp_atime || param->fp_mtime || param->fp_ctime) {
4966 for_mds = lustre_fs ?
4967 (S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) : 0;
4968 decision = find_time_check(param, for_mds);
4973 if (param->fp_btime) {
4974 if (!(lmd->lmd_stx.stx_mask & STATX_BTIME)) {
4979 decision = find_value_cmp(lmd->lmd_stx.stx_btime.tv_sec,
4980 param->fp_btime, param->fp_bsign,
4981 param->fp_exclude_btime,
4982 param->fp_time_margin, 0);
4987 if (param->fp_newerxy) {
4990 for_mds = lustre_fs ?
4991 (S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) : 0;
4992 decision = find_newerxy_check(param, for_mds, true);
5001 flags = param->fp_lmd->lmd_flags;
5002 if (param->fp_check_size &&
5003 ((S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) ||
5004 S_ISDIR(lmd->lmd_stx.stx_mode)) &&
5005 !(flags & OBD_MD_FLSIZE ||
5006 (param->fp_lazy && flags & OBD_MD_FLLAZYSIZE)))
5009 if (param->fp_check_blocks &&
5010 ((S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) ||
5011 S_ISDIR(lmd->lmd_stx.stx_mode)) &&
5012 !(flags & OBD_MD_FLBLOCKS ||
5013 (param->fp_lazy && flags & OBD_MD_FLLAZYBLOCKS)))
5017 * If file still fits the request, ask ost for updated info.
5018 * The regular stat is almost of the same speed as some new
5019 * 'glimpse-size-ioctl'.
5025 * For regular files with the stripe the decision may have not
5026 * been taken yet if *time or size is to be checked.
5028 if (param->fp_obd_index != OBD_NOT_FOUND)
5029 print_failed_tgt(param, path, LL_STATFS_LOV);
5031 if (param->fp_mdt_index != OBD_NOT_FOUND)
5032 print_failed_tgt(param, path, LL_STATFS_LMV);
5035 ret = fstat_f(dirfd(dir), &st);
5036 else if (de != NULL)
5037 ret = fstatat_f(dirfd(parent), de->d_name, &st,
5038 AT_SYMLINK_NOFOLLOW);
5040 ret = lstat_f(path, &st);
5043 if (errno == ENOENT) {
5044 llapi_error(LLAPI_MSG_ERROR, -ENOENT,
5045 "warning: %s: %s does not exist",
5050 llapi_error(LLAPI_MSG_ERROR, ret,
5051 "%s: stat on %s failed",
5057 convert_lmd_statx(param->fp_lmd, &st, true);
5058 /* Check the time on osc. */
5059 decision = find_time_check(param, 0);
5063 if (param->fp_newerxy) {
5064 decision = find_newerxy_check(param, 0, false);
5074 if (param->fp_check_size) {
5075 decision = find_value_cmp(lmd->lmd_stx.stx_size,
5077 param->fp_size_sign,
5078 param->fp_exclude_size,
5079 param->fp_size_units, 0);
5084 if (param->fp_check_blocks) { /* convert st_blocks to bytes */
5085 decision = find_value_cmp(lmd->lmd_stx.stx_blocks * 512,
5087 param->fp_blocks_sign,
5088 param->fp_exclude_blocks,
5089 param->fp_blocks_units, 0);
5095 llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
5096 if (param->fp_zero_end)
5097 llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
5099 llapi_printf(LLAPI_MSG_NORMAL, "\n");
5103 /* Do not get down anymore? */
5104 if (param->fp_depth == param->fp_max_depth) {
5115 static int cb_migrate_mdt_init(char *path, DIR *parent, DIR **dirp,
5116 void *param_data, struct dirent64 *de)
5118 struct find_param *param = (struct find_param *)param_data;
5119 struct lmv_user_md *lmu = param->fp_lmv_md;
5120 DIR *tmp_parent = parent;
5121 char raw[MAX_IOC_BUFLEN] = {'\0'};
5123 struct obd_ioctl_data data = { 0 };
5130 if (parent == NULL && dirp == NULL)
5139 if (parent == NULL) {
5140 tmp_parent = opendir_parent(path);
5141 if (tmp_parent == NULL) {
5144 llapi_error(LLAPI_MSG_ERROR, ret,
5145 "can not open %s", path);
5150 fd = dirfd(tmp_parent);
5152 path_copy = strdup(path);
5153 filename = basename(path_copy);
5155 data.ioc_inlbuf1 = (char *)filename;
5156 data.ioc_inllen1 = strlen(filename) + 1;
5157 data.ioc_inlbuf2 = (char *)lmu;
5158 data.ioc_inllen2 = lmv_user_md_size(lmu->lum_stripe_count,
5160 ret = llapi_ioctl_pack(&data, &rawbuf, sizeof(raw));
5162 llapi_error(LLAPI_MSG_ERROR, ret,
5163 "%s: error packing ioctl data", __func__);
5168 ret = ioctl(fd, LL_IOC_MIGRATE, rawbuf);
5170 if (errno == EBUSY && !retry) {
5172 * because migrate may not be able to lock all involved
5173 * objects in order, for some of them it try lock, while
5174 * there may be conflicting COS locks and cause migrate
5175 * fail with EBUSY, hope a sync() could cause
5176 * transaction commit and release these COS locks.
5181 } else if (errno == EALREADY) {
5182 if (param->fp_verbose & VERBOSE_DETAIL)
5183 llapi_printf(LLAPI_MSG_NORMAL,
5184 "%s migrated to MDT%d already\n",
5185 path, lmu->lum_stripe_offset);
5189 llapi_error(LLAPI_MSG_ERROR, ret, "%s migrate failed",
5193 } else if (param->fp_verbose & VERBOSE_DETAIL) {
5194 llapi_printf(LLAPI_MSG_NORMAL,
5195 "migrate %s to MDT%d stripe count %d\n",
5196 path, lmu->lum_stripe_offset,
5197 lmu->lum_stripe_count);
5203 * If the directory is being migration, we need
5204 * close the directory after migration,
5205 * so the old directory cache will be cleanup
5206 * on the client side, and re-open to get the
5207 * new directory handle
5209 *dirp = opendir(path);
5210 if (*dirp == NULL) {
5212 llapi_error(LLAPI_MSG_ERROR, ret,
5213 "%s: Failed to open '%s'", __func__, path);
5218 closedir(tmp_parent);
5225 /* dir migration finished, shrink its stripes */
5226 static int cb_migrate_mdt_fini(char *path, DIR *parent, DIR **dirp, void *data,
5227 struct dirent64 *de)
5229 struct find_param *param = data;
5230 struct lmv_user_md *lmu = param->fp_lmv_md;
5231 int lmulen = lmv_user_md_size(lmu->lum_stripe_count, lmu->lum_magic);
5234 if (de && de->d_type != DT_DIR)
5239 * close it before setxattr because the latter may destroy the
5240 * original object, and cause close fail.
5242 ret = closedir(*dirp);
5248 ret = setxattr(path, XATTR_NAME_LMV, lmu, lmulen, 0);
5249 if (ret == -EALREADY)
5252 cb_common_fini(path, parent, dirp, data, de);
5256 int llapi_migrate_mdt(char *path, struct find_param *param)
5258 return param_callback(path, cb_migrate_mdt_init, cb_migrate_mdt_fini,
5262 int llapi_mv(char *path, struct find_param *param)
5264 #if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 59, 0)
5265 static bool printed;
5268 llapi_error(LLAPI_MSG_ERROR, -ESTALE,
5269 "%s() is deprecated, use llapi_migrate_mdt() instead",
5274 return llapi_migrate_mdt(path, param);
5277 int llapi_find(char *path, struct find_param *param)
5279 return param_callback(path, cb_find_init, cb_common_fini, param);
5283 * Get MDT number that the file/directory inode referenced
5284 * by the open fd resides on.
5285 * Return 0 and mdtidx on success, or -ve errno.
5287 int llapi_file_fget_mdtidx(int fd, int *mdtidx)
5289 if (ioctl(fd, LL_IOC_GET_MDTIDX, mdtidx) < 0)
5294 static int cb_get_mdt_index(char *path, DIR *parent, DIR **dirp, void *data,
5295 struct dirent64 *de)
5297 struct find_param *param = (struct find_param *)data;
5298 DIR *d = dirp == NULL ? NULL : *dirp;
5302 if (parent == NULL && d == NULL)
5306 ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
5307 } else /* if (parent) */ {
5310 fd = open(path, O_RDONLY | O_NOCTTY);
5312 ret = llapi_file_fget_mdtidx(fd, &mdtidx);
5320 if (ret == -ENODATA) {
5321 if (!param->fp_obd_uuid)
5322 llapi_printf(LLAPI_MSG_NORMAL,
5323 "'%s' has no stripe info\n", path);
5325 } else if (ret == -ENOENT) {
5326 llapi_error(LLAPI_MSG_WARN, ret,
5327 "warning: %s: '%s' does not exist",
5330 } else if (ret == -ENOTTY) {
5331 llapi_error(LLAPI_MSG_ERROR, ret,
5332 "%s: '%s' not on a Lustre fs",
5335 llapi_error(LLAPI_MSG_ERROR, ret,
5336 "error: %s: '%s' failed get_mdtidx",
5342 if (param->fp_quiet || !(param->fp_verbose & VERBOSE_DETAIL))
5343 llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
5345 llapi_printf(LLAPI_MSG_NORMAL, "%s\nmdt_index:\t%d\n",
5349 /* Do not go down anymore? */
5350 if (param->fp_depth == param->fp_max_depth)
5358 static int cb_getstripe(char *path, DIR *parent, DIR **dirp, void *data,
5359 struct dirent64 *de)
5361 struct find_param *param = (struct find_param *)data;
5362 DIR *d = dirp == NULL ? NULL : *dirp;
5365 if (parent == NULL && d == NULL)
5368 if (param->fp_obd_uuid) {
5369 param->fp_quiet = 1;
5370 ret = setup_obd_uuid(d ? dirfd(d) : dirfd(parent), path, param);
5375 if (d && (param->fp_get_lmv || param->fp_get_default_lmv))
5376 ret = cb_get_dirstripe(path, d, param);
5378 (parent && !param->fp_get_lmv && !param->fp_get_default_lmv))
5379 ret = get_lmd_info(path, parent, d, ¶m->fp_lmd->lmd_lmm,
5380 param->fp_lum_size, GET_LMD_STRIPE);
5385 if (errno == ENODATA && d != NULL) {
5387 * We need to "fake" the "use the default" values
5388 * since the lmm struct is zeroed out at this point.
5389 * The magic needs to be set in order to satisfy
5390 * a check later on in the code path.
5391 * The object_seq needs to be set for the "(Default)"
5392 * prefix to be displayed.
5394 if (param->fp_get_default_lmv) {
5395 struct lmv_user_md *lum = param->fp_lmv_md;
5397 lum->lum_magic = LMV_USER_MAGIC;
5398 lum->lum_stripe_count = 0;
5399 lum->lum_stripe_offset = LMV_OFFSET_DEFAULT;
5401 } else if (param->fp_get_lmv) {
5402 struct lmv_user_md *lum = param->fp_lmv_md;
5405 ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
5408 lum->lum_magic = LMV_MAGIC_V1;
5409 lum->lum_stripe_count = 0;
5410 lum->lum_stripe_offset = mdtidx;
5413 struct lov_user_md *lmm =
5414 ¶m->fp_lmd->lmd_lmm;
5416 lmm->lmm_magic = LOV_USER_MAGIC_V1;
5418 ostid_set_seq(&lmm->lmm_oi,
5419 FID_SEQ_LOV_DEFAULT);
5420 lmm->lmm_stripe_count = 0;
5421 lmm->lmm_stripe_size = 0;
5422 lmm->lmm_stripe_offset = -1;
5425 } else if (errno == ENODATA && parent != NULL) {
5426 if (!param->fp_obd_uuid && !param->fp_mdt_uuid)
5427 llapi_printf(LLAPI_MSG_NORMAL,
5428 "%s has no stripe info\n", path);
5430 } else if (errno == ENOENT) {
5431 llapi_error(LLAPI_MSG_WARN, -ENOENT,
5432 "warning: %s: %s does not exist",
5435 } else if (errno == ENOTTY) {
5437 llapi_error(LLAPI_MSG_ERROR, ret,
5438 "%s: '%s' not on a Lustre fs?",
5443 llapi_error(LLAPI_MSG_ERROR, ret,
5444 "error: %s: %s failed for %s",
5445 __func__, d ? "LL_IOC_LOV_GETSTRIPE" :
5446 "IOC_MDC_GETFILESTRIPE", path);
5453 if (!(param->fp_verbose & VERBOSE_MDTINDEX))
5454 llapi_lov_dump_user_lmm(param, path, d ? LDF_IS_DIR : 0);
5457 /* Do not get down anymore? */
5458 if (param->fp_depth == param->fp_max_depth)
5466 int llapi_getstripe(char *path, struct find_param *param)
5468 return param_callback(path, (param->fp_verbose & VERBOSE_MDTINDEX) ?
5469 cb_get_mdt_index : cb_getstripe,
5470 cb_common_fini, param);
5473 int llapi_obd_fstatfs(int fd, __u32 type, __u32 index,
5474 struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
5476 char raw[MAX_IOC_BUFLEN] = {'\0'};
5478 struct obd_ioctl_data data = { 0 };
5481 data.ioc_inlbuf1 = (char *)&type;
5482 data.ioc_inllen1 = sizeof(__u32);
5483 data.ioc_inlbuf2 = (char *)&index;
5484 data.ioc_inllen2 = sizeof(__u32);
5485 data.ioc_pbuf1 = (char *)stat_buf;
5486 data.ioc_plen1 = sizeof(struct obd_statfs);
5487 data.ioc_pbuf2 = (char *)uuid_buf;
5488 data.ioc_plen2 = sizeof(struct obd_uuid);
5490 rc = llapi_ioctl_pack(&data, &rawbuf, sizeof(raw));
5492 llapi_error(LLAPI_MSG_ERROR, rc,
5493 "%s: error packing ioctl data", __func__);
5497 rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
5499 return rc < 0 ? -errno : 0;
5502 int llapi_obd_statfs(char *path, __u32 type, __u32 index,
5503 struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
5508 fd = open(path, O_RDONLY);
5511 llapi_error(LLAPI_MSG_ERROR, rc, "error: %s: opening '%s'",
5514 * If we can't even open a file on the filesystem (e.g. with
5515 * -ESHUTDOWN), force caller to exit or it will loop forever.
5520 rc = llapi_obd_fstatfs(fd, type, index, stat_buf, uuid_buf);
5527 #define MAX_STRING_SIZE 128
5529 int llapi_ping(char *obd_type, char *obd_name)
5531 int flags = O_RDONLY;
5532 char buf[1] = { 0 };
5536 rc = cfs_get_param_paths(&path, "%s/%s/ping",
5537 obd_type, obd_name);
5541 fd = open(path.gl_pathv[0], flags);
5543 if (errno == EACCES && flags == O_RDONLY) {
5548 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s",
5553 if (flags == O_RDONLY)
5554 rc = read(fd, buf, sizeof(buf));
5556 rc = write(fd, buf, sizeof(buf));
5564 cfs_free_param_data(&path);
5568 int llapi_target_iterate(int type_num, char **obd_type,
5569 void *args, llapi_cb_t cb)
5575 for (i = 0; i < type_num; i++) {
5578 rc = cfs_get_param_paths(¶m, "%s/*/uuid", obd_type[i]);
5582 for (j = 0; j < param.gl_pathc; j++) {
5583 char obd_uuid[UUID_MAX + 1];
5587 fp = fopen(param.gl_pathv[j], "r");
5590 llapi_error(LLAPI_MSG_ERROR, rc,
5591 "error: opening '%s'",
5596 if (fgets(obd_uuid, sizeof(obd_uuid), fp) == NULL) {
5598 llapi_error(LLAPI_MSG_ERROR, rc,
5599 "error: reading '%s'",
5604 /* Extract the obd_name from the sysfs path.
5605 * 'topsysfs'/fs/lustre/'obd_type'/'obd_name'.
5607 obd_name = strstr(param.gl_pathv[j], "/fs/lustre/");
5613 /* skip /fs/lustre/'obd_type'/ */
5614 obd_name += strlen(obd_type[i]) + 12;
5615 /* chop off after obd_name */
5616 ptr = strrchr(obd_name, '/');
5620 cb(obd_type[i], obd_name, obd_uuid, args);
5629 cfs_free_param_data(¶m);
5633 static void do_target_check(char *obd_type_name, char *obd_name,
5634 char *obd_uuid, void *args)
5638 rc = llapi_ping(obd_type_name, obd_name);
5640 llapi_printf(LLAPI_MSG_NORMAL, "%s inactive.\n", obd_name);
5642 llapi_error(LLAPI_MSG_ERROR, rc, "error: check '%s'", obd_name);
5644 llapi_printf(LLAPI_MSG_NORMAL, "%s active.\n", obd_name);
5647 int llapi_target_check(int type_num, char **obd_type, char *dir)
5649 return llapi_target_iterate(type_num, obd_type, NULL, do_target_check);
5652 #undef MAX_STRING_SIZE
5654 /* Is this a lustre fs? */
5655 int llapi_is_lustre_mnttype(const char *type)
5657 return strcmp(type, "lustre") == 0 || strcmp(type, "lustre_tgt") == 0;
5660 /* Is this a lustre client fs? */
5661 int llapi_is_lustre_mnt(struct mntent *mnt)
5663 return (llapi_is_lustre_mnttype(mnt->mnt_type) &&
5664 strstr(mnt->mnt_fsname, ":/") != NULL);
5667 int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
5669 char fsname[PATH_MAX + 1];
5673 rc = llapi_search_fsname(mnt, fsname);
5677 root = open(mnt, O_RDONLY | O_DIRECTORY);
5680 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open '%s'", mnt);
5684 rc = ioctl(root, OBD_IOC_QUOTACTL, qctl);
5687 if (rc == -ENOENT && LUSTRE_Q_CMD_IS_POOL(qctl->qc_cmd))
5688 llapi_error(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, rc,
5689 "Cannot find pool '%s'", qctl->qc_poolname);
5695 int llapi_get_connect_flags(const char *mnt, __u64 *flags)
5700 root = open(mnt, O_RDONLY | O_DIRECTORY);
5703 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
5707 rc = ioctl(root, LL_IOC_GET_CONNECT_FLAGS, flags);
5710 llapi_error(LLAPI_MSG_ERROR, rc,
5711 "ioctl on %s for getting connect flags failed", mnt);
5718 * Get a 64-bit value representing the version of file data pointed by fd.
5720 * Each write or truncate, flushed on OST, will change this value. You can use
5721 * this value to verify if file data was modified. This only checks the file
5722 * data, not metadata.
5724 * \param flags 0: no flush pages, usually used it the process has already
5726 * LL_DV_RD_FLUSH: OSTs will take LCK_PR to flush dirty pages
5728 * LL_DV_WR_FLUSH: OSTs will take LCK_PW to flush all caching
5729 * pages from clients.
5731 * \retval 0 on success.
5732 * \retval -errno on error.
5734 int llapi_get_data_version(int fd, __u64 *data_version, __u64 flags)
5737 struct ioc_data_version idv;
5739 idv.idv_flags = (__u32)flags;
5741 rc = ioctl(fd, LL_IOC_DATA_VERSION, &idv);
5745 *data_version = idv.idv_version;
5751 * Flush cached pages from all clients.
5753 * \param fd File descriptor
5757 int llapi_file_flush(int fd)
5761 return llapi_get_data_version(fd, &dv, LL_DV_WR_FLUSH);
5765 * Fetch layout version from OST objects. Layout version on OST objects are
5766 * only set when the file is a mirrored file AND after the file has been
5767 * written at least once.
5769 * It actually fetches the least layout version from the objects.
5771 int llapi_get_ost_layout_version(int fd, __u32 *layout_version)
5774 struct ioc_data_version idv = { 0 };
5776 rc = ioctl(fd, LL_IOC_DATA_VERSION, &idv);
5780 *layout_version = idv.idv_layout_version;
5786 * Create a file without any name and open it for read/write
5788 * - file is created as if it were a standard file in the given \a directory
5789 * - file does not appear in \a directory and mtime does not change because
5790 * the filename is handled specially by the Lustre MDS.
5791 * - file is destroyed at final close
5793 * \param[in] directory directory from which to inherit layout/MDT idx
5794 * \param[in] mdt_idx MDT index on which the file is created,
5795 * \a idx == -1 means no specific MDT is requested
5796 * \param[in] mode standard open(2) mode
5797 * \param[in] stripe_param stripe parameters. May be NULL.
5799 * \retval a file descriptor on success.
5800 * \retval -errno on error.
5802 int llapi_create_volatile_param(const char *directory, int mdt_idx,
5803 int open_flags, mode_t mode,
5804 const struct llapi_stripe_param *stripe_param)
5806 char file_path[PATH_MAX];
5807 int saved_errno = errno;
5809 unsigned int rnumber;
5815 rc = snprintf(file_path, sizeof(file_path),
5816 "%s/" LUSTRE_VOLATILE_HDR "::%.4X",
5817 directory, rnumber);
5819 rc = snprintf(file_path, sizeof(file_path),
5820 "%s/" LUSTRE_VOLATILE_HDR ":%.4X:%.4X",
5821 directory, mdt_idx, rnumber);
5823 if (rc < 0 || rc >= sizeof(file_path))
5824 return -ENAMETOOLONG;
5827 * Either open O_WRONLY or O_RDWR, creating RDONLY
5828 * is non-sensical here
5830 if ((open_flags & O_ACCMODE) == O_RDONLY)
5831 open_flags = O_RDWR | (open_flags & ~O_ACCMODE);
5833 open_flags |= O_CREAT | O_EXCL | O_NOFOLLOW;
5835 if (stripe_param != NULL) {
5836 fd = llapi_file_open_param(file_path, open_flags,
5837 mode, stripe_param);
5841 fd = open(file_path, open_flags, mode);
5845 } while (fd < 0 && rc == -EEXIST);
5848 llapi_error(LLAPI_MSG_ERROR, rc,
5849 "Cannot create volatile file '%s' in '%s'",
5850 file_path + strlen(directory) + 1 +
5851 LUSTRE_VOLATILE_HDR_LEN,
5857 * Unlink file in case this wasn't a Lustre filesystem and the magic
5858 * volatile filename wasn't handled as intended. The effect is the
5859 * same. If volatile open was supported then we expect unlink() to
5862 (void)unlink(file_path);
5865 * Since we are returning successfully we restore errno (and
5866 * mask out possible EEXIST from open() and ENOENT from unlink().
5868 errno = saved_errno;
5874 * Create a file without any name open it for read/write
5876 * - file is created as if it were a standard file in the given \a directory
5877 * - file does not appear in \a directory and mtime does not change because
5878 * the filename is handled specially by the Lustre MDS.
5879 * - file is removed at final close
5880 * - file modes are rw------- since it doesn't make sense to have a read-only
5881 * or write-only file that cannot be opened again.
5882 * - if user wants another mode it must use fchmod() on the open file, no
5883 * security problems arise because it cannot be opened by another process.
5885 * \param[in] directory directory from which to inherit layout/MDT idx
5886 * \param[in] idx MDT index on which the file is created,
5887 * \a idx == -1 means no specific MDT is requested
5888 * \param[in] open_flags standard open(2) flags
5890 * \retval a file descriptor on success.
5891 * \retval -errno on error.
5893 int llapi_create_volatile_idx(const char *directory, int mdt_idx,
5896 return llapi_create_volatile_param(directory, mdt_idx, open_flags,
5897 S_IRUSR | S_IWUSR, NULL);
5901 * Swap the layouts between 2 file descriptors
5902 * the 2 files must be open for writing
5903 * first fd received the ioctl, second fd is passed as arg
5904 * this is assymetric but avoid use of root path for ioctl
5906 int llapi_fswap_layouts_grouplock(int fd1, int fd2, __u64 dv1, __u64 dv2,
5907 int gid, __u64 flags)
5909 struct lustre_swap_layouts lsl;
5914 if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
5915 rc = fstat(fd1, &st1);
5919 rc = fstat(fd2, &st2);
5924 lsl.sl_flags = flags;
5928 rc = ioctl(fd1, LL_IOC_LOV_SWAP_LAYOUTS, &lsl);
5932 if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
5933 struct timeval tv1[2];
5934 struct timeval tv2[2];
5936 memset(tv1, 0, sizeof(tv1));
5937 memset(tv2, 0, sizeof(tv2));
5939 if (flags & SWAP_LAYOUTS_KEEP_ATIME) {
5940 tv1[0].tv_sec = st1.st_atime;
5941 tv2[0].tv_sec = st2.st_atime;
5943 tv1[0].tv_sec = st2.st_atime;
5944 tv2[0].tv_sec = st1.st_atime;
5947 if (flags & SWAP_LAYOUTS_KEEP_MTIME) {
5948 tv1[1].tv_sec = st1.st_mtime;
5949 tv2[1].tv_sec = st2.st_mtime;
5951 tv1[1].tv_sec = st2.st_mtime;
5952 tv2[1].tv_sec = st1.st_mtime;
5955 rc = futimes(fd1, tv1);
5959 rc = futimes(fd2, tv2);
5967 int llapi_fswap_layouts(int fd1, int fd2, __u64 dv1, __u64 dv2, __u64 flags)
5974 while (grp_id == 0);
5976 rc = llapi_fswap_layouts_grouplock(fd1, fd2, dv1, dv2, grp_id, flags);
5984 * Swap the layouts between 2 files
5985 * the 2 files are open in write
5987 int llapi_swap_layouts(const char *path1, const char *path2,
5988 __u64 dv1, __u64 dv2, __u64 flags)
5992 fd1 = open(path1, O_WRONLY | O_LOV_DELAY_CREATE);
5995 llapi_error(LLAPI_MSG_ERROR, rc,
5996 "error: cannot open '%s' for write", path1);
6000 fd2 = open(path2, O_WRONLY | O_LOV_DELAY_CREATE);
6003 llapi_error(LLAPI_MSG_ERROR, rc,
6004 "error: cannot open '%s' for write", path2);
6008 rc = llapi_fswap_layouts(fd1, fd2, dv1, dv2, flags);
6010 llapi_error(LLAPI_MSG_ERROR, rc,
6011 "error: cannot swap layout between '%s' and '%s'",
6024 * \param fd File to lock.
6025 * \param gid Group Identifier.
6027 * \retval 0 on success.
6028 * \retval -errno on failure.
6030 int llapi_group_lock(int fd, int gid)
6034 rc = ioctl(fd, LL_IOC_GROUP_LOCK, gid);
6037 llapi_error(LLAPI_MSG_ERROR, rc, "cannot get group lock");
6045 * \param fd File to unlock.
6046 * \param gid Group Identifier.
6048 * \retval 0 on success.
6049 * \retval -errno on failure.
6051 int llapi_group_unlock(int fd, int gid)
6055 rc = ioctl(fd, LL_IOC_GROUP_UNLOCK, gid);
6058 llapi_error(LLAPI_MSG_ERROR, rc, "cannot put group lock");