2 * Copyright (C) 2011 STRATO. All rights reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA.
19 #include <sys/ioctl.h>
22 #include <sys/types.h>
23 #include <sys/socket.h>
27 #include <uuid/uuid.h>
43 static const char * const scrub_cmd_group_usage
[] = {
44 "btrfs scrub <command> [options] <path>|<device>",
48 #define SCRUB_DATA_FILE "/var/lib/btrfs/scrub.status"
49 #define SCRUB_PROGRESS_SOCKET_PATH "/var/lib/btrfs/scrub.progress"
50 #define SCRUB_FILE_VERSION_PREFIX "scrub status"
51 #define SCRUB_FILE_VERSION "1"
61 struct scrub_progress
{
62 struct btrfs_ioctl_scrub_args scrub_args
;
66 struct scrub_stats stats
;
67 struct scrub_file_record
*resumed
;
69 pthread_mutex_t progress_mutex
;
72 struct scrub_file_record
{
73 u8 fsid
[BTRFS_FSID_SIZE
];
75 struct scrub_stats stats
;
76 struct btrfs_scrub_progress p
;
79 struct scrub_progress_cycle
{
83 struct btrfs_ioctl_fs_info_args
*fi
;
84 struct scrub_progress
*progress
;
85 struct scrub_progress
*shared_progress
;
86 pthread_mutex_t
*write_mutex
;
89 struct scrub_fs_stat
{
90 struct btrfs_scrub_progress p
;
95 static void print_scrub_full(struct btrfs_scrub_progress
*sp
)
97 printf("\tdata_extents_scrubbed: %lld\n", sp
->data_extents_scrubbed
);
98 printf("\ttree_extents_scrubbed: %lld\n", sp
->tree_extents_scrubbed
);
99 printf("\tdata_bytes_scrubbed: %lld\n", sp
->data_bytes_scrubbed
);
100 printf("\ttree_bytes_scrubbed: %lld\n", sp
->tree_bytes_scrubbed
);
101 printf("\tread_errors: %lld\n", sp
->read_errors
);
102 printf("\tcsum_errors: %lld\n", sp
->csum_errors
);
103 printf("\tverify_errors: %lld\n", sp
->verify_errors
);
104 printf("\tno_csum: %lld\n", sp
->no_csum
);
105 printf("\tcsum_discards: %lld\n", sp
->csum_discards
);
106 printf("\tsuper_errors: %lld\n", sp
->super_errors
);
107 printf("\tmalloc_errors: %lld\n", sp
->malloc_errors
);
108 printf("\tuncorrectable_errors: %lld\n", sp
->uncorrectable_errors
);
109 printf("\tunverified_errors: %lld\n", sp
->unverified_errors
);
110 printf("\tcorrected_errors: %lld\n", sp
->corrected_errors
);
111 printf("\tlast_physical: %lld\n", sp
->last_physical
);
114 #define ERR(test, ...) do { \
116 fprintf(stderr, __VA_ARGS__); \
119 #define PRINT_SCRUB_ERROR(test, desc) do { \
121 printf(" %s=%llu", desc, test); \
124 static void print_scrub_summary(struct btrfs_scrub_progress
*p
)
130 err_cnt
= p
->read_errors
+
135 err_cnt2
= p
->corrected_errors
+ p
->uncorrectable_errors
;
137 if (p
->malloc_errors
)
138 printf("*** WARNING: memory allocation failed while scrubbing. "
139 "results may be inaccurate\n");
140 bytes
= pretty_sizes(p
->data_bytes_scrubbed
+ p
->tree_bytes_scrubbed
);
141 printf("\ttotal bytes scrubbed: %s with %llu errors\n", bytes
,
142 max(err_cnt
, err_cnt2
));
144 if (err_cnt
|| err_cnt2
) {
145 printf("\terror details:");
146 PRINT_SCRUB_ERROR(p
->read_errors
, "read");
147 PRINT_SCRUB_ERROR(p
->super_errors
, "super");
148 PRINT_SCRUB_ERROR(p
->verify_errors
, "verify");
149 PRINT_SCRUB_ERROR(p
->csum_errors
, "csum");
151 printf("\tcorrected errors: %llu, uncorrectable errors: %llu, "
152 "unverified errors: %llu\n", p
->corrected_errors
,
153 p
->uncorrectable_errors
, p
->unverified_errors
);
157 #define _SCRUB_FS_STAT(p, name, fs_stat) do { \
158 fs_stat->p.name += p->name; \
161 #define _SCRUB_FS_STAT_MIN(ss, name, fs_stat) \
163 if (fs_stat->s.name > ss->name) { \
164 fs_stat->s.name = ss->name; \
168 #define _SCRUB_FS_STAT_ZMIN(ss, name, fs_stat) \
170 if (!fs_stat->s.name || fs_stat->s.name > ss->name) { \
171 fs_stat->s.name = ss->name; \
175 #define _SCRUB_FS_STAT_ZMAX(ss, name, fs_stat) \
177 if (!(fs_stat)->s.name || (fs_stat)->s.name < (ss)->name) { \
178 (fs_stat)->s.name = (ss)->name; \
182 static void add_to_fs_stat(struct btrfs_scrub_progress
*p
,
183 struct scrub_stats
*ss
,
184 struct scrub_fs_stat
*fs_stat
)
186 _SCRUB_FS_STAT(p
, data_extents_scrubbed
, fs_stat
);
187 _SCRUB_FS_STAT(p
, tree_extents_scrubbed
, fs_stat
);
188 _SCRUB_FS_STAT(p
, data_bytes_scrubbed
, fs_stat
);
189 _SCRUB_FS_STAT(p
, tree_bytes_scrubbed
, fs_stat
);
190 _SCRUB_FS_STAT(p
, read_errors
, fs_stat
);
191 _SCRUB_FS_STAT(p
, csum_errors
, fs_stat
);
192 _SCRUB_FS_STAT(p
, verify_errors
, fs_stat
);
193 _SCRUB_FS_STAT(p
, no_csum
, fs_stat
);
194 _SCRUB_FS_STAT(p
, csum_discards
, fs_stat
);
195 _SCRUB_FS_STAT(p
, super_errors
, fs_stat
);
196 _SCRUB_FS_STAT(p
, malloc_errors
, fs_stat
);
197 _SCRUB_FS_STAT(p
, uncorrectable_errors
, fs_stat
);
198 _SCRUB_FS_STAT(p
, corrected_errors
, fs_stat
);
199 _SCRUB_FS_STAT(p
, last_physical
, fs_stat
);
200 _SCRUB_FS_STAT_ZMIN(ss
, t_start
, fs_stat
);
201 _SCRUB_FS_STAT_ZMIN(ss
, t_resumed
, fs_stat
);
202 _SCRUB_FS_STAT_ZMAX(ss
, duration
, fs_stat
);
203 _SCRUB_FS_STAT_ZMAX(ss
, canceled
, fs_stat
);
204 _SCRUB_FS_STAT_MIN(ss
, finished
, fs_stat
);
207 static void init_fs_stat(struct scrub_fs_stat
*fs_stat
)
209 memset(fs_stat
, 0, sizeof(*fs_stat
));
210 fs_stat
->s
.finished
= 1;
213 static void _print_scrub_ss(struct scrub_stats
*ss
)
218 if (!ss
|| !ss
->t_start
) {
219 printf("\tno stats available\n");
223 localtime_r(&ss
->t_resumed
, &tm
);
224 strftime(t
, sizeof(t
), "%c", &tm
);
225 t
[sizeof(t
) - 1] = '\0';
226 printf("\tscrub resumed at %s", t
);
228 localtime_r(&ss
->t_start
, &tm
);
229 strftime(t
, sizeof(t
), "%c", &tm
);
230 t
[sizeof(t
) - 1] = '\0';
231 printf("\tscrub started at %s", t
);
233 if (ss
->finished
&& !ss
->canceled
) {
234 printf(" and finished after %llu seconds\n",
236 } else if (ss
->canceled
) {
237 printf(" and was aborted after %llu seconds\n",
240 printf(", running for %llu seconds\n", ss
->duration
);
244 static void print_scrub_dev(struct btrfs_ioctl_dev_info_args
*di
,
245 struct btrfs_scrub_progress
*p
, int raw
,
246 const char *append
, struct scrub_stats
*ss
)
248 printf("scrub device %s (id %llu) %s\n", di
->path
, di
->devid
,
249 append
? append
: "");
257 print_scrub_summary(p
);
261 static void print_fs_stat(struct scrub_fs_stat
*fs_stat
, int raw
)
263 _print_scrub_ss(&fs_stat
->s
);
266 print_scrub_full(&fs_stat
->p
);
268 print_scrub_summary(&fs_stat
->p
);
271 static void free_history(struct scrub_file_record
**last_scrubs
)
273 struct scrub_file_record
**l
= last_scrubs
;
282 * cancels a running scrub and makes the master process record the current
283 * progress status before exiting.
285 static int cancel_fd
= -1;
286 static void scrub_sigint_record_progress(int signal
)
288 ioctl(cancel_fd
, BTRFS_IOC_SCRUB_CANCEL
, NULL
);
291 static int scrub_handle_sigint_parent(void)
293 struct sigaction sa
= {
294 .sa_handler
= SIG_IGN
,
295 .sa_flags
= SA_RESTART
,
298 return sigaction(SIGINT
, &sa
, NULL
);
301 static int scrub_handle_sigint_child(int fd
)
303 struct sigaction sa
= {
304 .sa_handler
= fd
== -1 ? SIG_DFL
: scrub_sigint_record_progress
,
308 return sigaction(SIGINT
, &sa
, NULL
);
311 static int scrub_datafile(const char *fn_base
, const char *fn_local
,
312 const char *fn_tmp
, char *datafile
, int size
)
317 datafile
[end
+ 1] = '\0';
318 strncpy(datafile
, fn_base
, end
);
319 ret
= strlen(datafile
);
325 strncpy(datafile
+ ret
+ 1, fn_local
, end
- ret
- 1);
326 ret
= strlen(datafile
);
333 strncpy(datafile
+ ret
+ 1, fn_tmp
, end
- ret
- 1);
334 ret
= strlen(datafile
);
343 static int scrub_open_file(const char *datafile
, int m
)
348 fd
= open(datafile
, m
, 0600);
352 ret
= flock(fd
, LOCK_EX
|LOCK_NB
);
362 static int scrub_open_file_r(const char *fn_base
, const char *fn_local
)
365 char datafile
[BTRFS_PATH_NAME_MAX
+ 1];
366 ret
= scrub_datafile(fn_base
, fn_local
, NULL
,
367 datafile
, sizeof(datafile
));
370 return scrub_open_file(datafile
, O_RDONLY
);
373 static int scrub_open_file_w(const char *fn_base
, const char *fn_local
,
377 char datafile
[BTRFS_PATH_NAME_MAX
+ 1];
378 ret
= scrub_datafile(fn_base
, fn_local
, tmp
,
379 datafile
, sizeof(datafile
));
382 return scrub_open_file(datafile
, O_WRONLY
|O_CREAT
);
385 static int scrub_rename_file(const char *fn_base
, const char *fn_local
,
389 char datafile_old
[BTRFS_PATH_NAME_MAX
+ 1];
390 char datafile_new
[BTRFS_PATH_NAME_MAX
+ 1];
391 ret
= scrub_datafile(fn_base
, fn_local
, tmp
,
392 datafile_old
, sizeof(datafile_old
));
395 ret
= scrub_datafile(fn_base
, fn_local
, NULL
,
396 datafile_new
, sizeof(datafile_new
));
399 ret
= rename(datafile_old
, datafile_new
);
400 return ret
? -errno
: 0;
403 #define _SCRUB_KVREAD(ret, i, name, avail, l, dest) if (ret == 0) { \
404 ret = scrub_kvread(i, sizeof(#name), avail, l, #name, dest.name); \
408 * returns 0 if the key did not match (nothing was read)
409 * 1 if the key did match (success)
410 * -1 if the key did match and an error occured
412 static int scrub_kvread(int *i
, int len
, int avail
, const char *buf
,
413 const char *key
, u64
*dest
)
417 if (*i
+ len
+ 1 < avail
&& strncmp(&buf
[*i
], key
, len
- 1) == 0) {
422 for (j
= 0; isdigit(buf
[*i
+ j
]) && *i
+ j
< avail
; ++j
)
426 *dest
= atoll(&buf
[*i
]);
434 #define _SCRUB_INVALID do { \
436 fprintf(stderr, "WARNING: invalid data in line %d pos " \
437 "%d state %d (near \"%.*s\") at %s:%d\n", \
438 lineno, i, state, 20 > avail ? avail : 20, \
439 l + i, __FILE__, __LINE__); \
443 static struct scrub_file_record
**scrub_read_file(int fd
, int report_errors
)
456 char empty_uuid
[BTRFS_FSID_SIZE
] = {0};
457 struct scrub_file_record
**p
= NULL
;
460 return ERR_PTR(-EINVAL
);
463 old_avail
= avail
- i
;
464 BUG_ON(old_avail
< 0);
466 memmove(l
, l
+ i
, old_avail
);
467 avail
= read(fd
, l
+ old_avail
, sizeof(l
) - old_avail
);
470 if (avail
== 0 && old_avail
== 0) {
472 memcmp(p
[curr
]->fsid
, empty_uuid
, BTRFS_FSID_SIZE
) == 0) {
474 } else if (curr
== -1) {
475 p
= ERR_PTR(-ENODATA
);
480 return ERR_PTR(-errno
);
486 case 0: /* start of file */
487 ret
= scrub_kvread(&i
,
488 sizeof(SCRUB_FILE_VERSION_PREFIX
), avail
, l
,
489 SCRUB_FILE_VERSION_PREFIX
, &version
);
492 if (version
!= atoll(SCRUB_FILE_VERSION
))
493 return ERR_PTR(-ENOTSUP
);
496 case 1: /* start of line, alloc */
498 * this state makes sure we have a complete line in
499 * further processing, so we don't need wrap-tracking
502 if (!eof
&& !memchr(l
+ i
, '\n', avail
- i
))
505 if (curr
> -1 && memcmp(p
[curr
]->fsid
, empty_uuid
,
506 BTRFS_FSID_SIZE
) == 0) {
511 p
= realloc(p
, (curr
+ 2) * sizeof(*p
));
513 p
[curr
] = malloc(sizeof(**p
));
515 return ERR_PTR(-errno
);
516 memset(p
[curr
], 0, sizeof(**p
));
520 case 2: /* start of line, skip space */
521 while (isspace(l
[i
]) && i
< avail
) {
527 (!eof
&& !memchr(l
+ i
, '\n', avail
- i
)))
531 case 3: /* read fsid */
534 for (j
= 0; l
[i
+ j
] != ':' && i
+ j
< avail
; ++j
)
536 if (i
+ j
+ 1 >= avail
)
541 ret
= uuid_parse(l
+ i
, p
[curr
]->fsid
);
547 case 4: /* read dev id */
548 for (j
= 0; isdigit(l
[i
+ j
]) && i
+j
< avail
; ++j
)
550 if (j
== 0 || i
+ j
+ 1 >= avail
)
552 p
[curr
]->devid
= atoll(&l
[i
]);
556 case 5: /* read key/value pair */
558 _SCRUB_KVREAD(ret
, &i
, data_extents_scrubbed
, avail
, l
,
560 _SCRUB_KVREAD(ret
, &i
, data_extents_scrubbed
, avail
, l
,
562 _SCRUB_KVREAD(ret
, &i
, tree_extents_scrubbed
, avail
, l
,
564 _SCRUB_KVREAD(ret
, &i
, data_bytes_scrubbed
, avail
, l
,
566 _SCRUB_KVREAD(ret
, &i
, tree_bytes_scrubbed
, avail
, l
,
568 _SCRUB_KVREAD(ret
, &i
, read_errors
, avail
, l
,
570 _SCRUB_KVREAD(ret
, &i
, csum_errors
, avail
, l
,
572 _SCRUB_KVREAD(ret
, &i
, verify_errors
, avail
, l
,
574 _SCRUB_KVREAD(ret
, &i
, no_csum
, avail
, l
,
576 _SCRUB_KVREAD(ret
, &i
, csum_discards
, avail
, l
,
578 _SCRUB_KVREAD(ret
, &i
, super_errors
, avail
, l
,
580 _SCRUB_KVREAD(ret
, &i
, malloc_errors
, avail
, l
,
582 _SCRUB_KVREAD(ret
, &i
, uncorrectable_errors
, avail
, l
,
584 _SCRUB_KVREAD(ret
, &i
, corrected_errors
, avail
, l
,
586 _SCRUB_KVREAD(ret
, &i
, last_physical
, avail
, l
,
588 _SCRUB_KVREAD(ret
, &i
, finished
, avail
, l
,
590 _SCRUB_KVREAD(ret
, &i
, t_start
, avail
, l
,
591 (u64
*)&p
[curr
]->stats
);
592 _SCRUB_KVREAD(ret
, &i
, t_resumed
, avail
, l
,
593 (u64
*)&p
[curr
]->stats
);
594 _SCRUB_KVREAD(ret
, &i
, duration
, avail
, l
,
595 (u64
*)&p
[curr
]->stats
);
596 _SCRUB_KVREAD(ret
, &i
, canceled
, avail
, l
,
602 case 6: /* after number */
605 else if (l
[i
] == '\n')
611 case 99: /* skip rest of line */
616 if (l
[i
- 1] == '\n') {
628 static int scrub_write_buf(int fd
, const void *data
, int len
)
631 ret
= write(fd
, data
, len
);
635 static int scrub_writev(int fd
, char *buf
, int max
, const char *fmt
, ...)
636 __attribute__ ((format (printf
, 4, 5)));
637 static int scrub_writev(int fd
, char *buf
, int max
, const char *fmt
, ...)
643 ret
= vsnprintf(buf
, max
, fmt
, args
);
647 return scrub_write_buf(fd
, buf
, ret
);
650 #define _SCRUB_SUM(dest, data, name) dest->scrub_args.progress.name = \
651 data->resumed->p.name + data->scrub_args.progress.name
653 static struct scrub_progress
*scrub_resumed_stats(struct scrub_progress
*data
,
654 struct scrub_progress
*dest
)
656 if (!data
->resumed
|| data
->skip
)
659 _SCRUB_SUM(dest
, data
, data_extents_scrubbed
);
660 _SCRUB_SUM(dest
, data
, tree_extents_scrubbed
);
661 _SCRUB_SUM(dest
, data
, data_bytes_scrubbed
);
662 _SCRUB_SUM(dest
, data
, tree_bytes_scrubbed
);
663 _SCRUB_SUM(dest
, data
, read_errors
);
664 _SCRUB_SUM(dest
, data
, csum_errors
);
665 _SCRUB_SUM(dest
, data
, verify_errors
);
666 _SCRUB_SUM(dest
, data
, no_csum
);
667 _SCRUB_SUM(dest
, data
, csum_discards
);
668 _SCRUB_SUM(dest
, data
, super_errors
);
669 _SCRUB_SUM(dest
, data
, malloc_errors
);
670 _SCRUB_SUM(dest
, data
, uncorrectable_errors
);
671 _SCRUB_SUM(dest
, data
, corrected_errors
);
672 _SCRUB_SUM(dest
, data
, last_physical
);
673 dest
->stats
.canceled
= data
->stats
.canceled
;
674 dest
->stats
.finished
= data
->stats
.finished
;
675 dest
->stats
.t_resumed
= data
->stats
.t_start
;
676 dest
->stats
.t_start
= data
->resumed
->stats
.t_start
;
677 dest
->stats
.duration
= data
->resumed
->stats
.duration
+
678 data
->stats
.duration
;
679 dest
->scrub_args
.devid
= data
->scrub_args
.devid
;
683 #define _SCRUB_KVWRITE(fd, buf, name, use) \
684 scrub_kvwrite(fd, buf, sizeof(buf), #name, \
685 use->scrub_args.progress.name)
687 #define _SCRUB_KVWRITE_STATS(fd, buf, name, use) \
688 scrub_kvwrite(fd, buf, sizeof(buf), #name, \
691 static int scrub_kvwrite(int fd
, char *buf
, int max
, const char *key
, u64 val
)
693 return scrub_writev(fd
, buf
, max
, "|%s:%lld", key
, val
);
696 static int scrub_write_file(int fd
, const char *fsid
,
697 struct scrub_progress
*data
, int n
)
702 struct scrub_progress local
;
703 struct scrub_progress
*use
;
708 /* each -1 is to subtract one \0 byte, the + 2 is for ':' and '\n' */
709 ret
= scrub_write_buf(fd
, SCRUB_FILE_VERSION_PREFIX
":"
710 SCRUB_FILE_VERSION
"\n",
711 (sizeof(SCRUB_FILE_VERSION_PREFIX
) - 1) +
712 (sizeof(SCRUB_FILE_VERSION
) - 1) + 2);
716 for (i
= 0; i
< n
; ++i
) {
717 use
= scrub_resumed_stats(&data
[i
], &local
);
718 if (scrub_write_buf(fd
, fsid
, strlen(fsid
)) ||
719 scrub_write_buf(fd
, ":", 1) ||
720 scrub_writev(fd
, buf
, sizeof(buf
), "%lld",
721 use
->scrub_args
.devid
) ||
722 scrub_write_buf(fd
, buf
, ret
) ||
723 _SCRUB_KVWRITE(fd
, buf
, data_extents_scrubbed
, use
) ||
724 _SCRUB_KVWRITE(fd
, buf
, tree_extents_scrubbed
, use
) ||
725 _SCRUB_KVWRITE(fd
, buf
, data_bytes_scrubbed
, use
) ||
726 _SCRUB_KVWRITE(fd
, buf
, tree_bytes_scrubbed
, use
) ||
727 _SCRUB_KVWRITE(fd
, buf
, read_errors
, use
) ||
728 _SCRUB_KVWRITE(fd
, buf
, csum_errors
, use
) ||
729 _SCRUB_KVWRITE(fd
, buf
, verify_errors
, use
) ||
730 _SCRUB_KVWRITE(fd
, buf
, no_csum
, use
) ||
731 _SCRUB_KVWRITE(fd
, buf
, csum_discards
, use
) ||
732 _SCRUB_KVWRITE(fd
, buf
, super_errors
, use
) ||
733 _SCRUB_KVWRITE(fd
, buf
, malloc_errors
, use
) ||
734 _SCRUB_KVWRITE(fd
, buf
, uncorrectable_errors
, use
) ||
735 _SCRUB_KVWRITE(fd
, buf
, corrected_errors
, use
) ||
736 _SCRUB_KVWRITE(fd
, buf
, last_physical
, use
) ||
737 _SCRUB_KVWRITE_STATS(fd
, buf
, t_start
, use
) ||
738 _SCRUB_KVWRITE_STATS(fd
, buf
, t_resumed
, use
) ||
739 _SCRUB_KVWRITE_STATS(fd
, buf
, duration
, use
) ||
740 _SCRUB_KVWRITE_STATS(fd
, buf
, canceled
, use
) ||
741 _SCRUB_KVWRITE_STATS(fd
, buf
, finished
, use
) ||
742 scrub_write_buf(fd
, "\n", 1)) {
750 static int scrub_write_progress(pthread_mutex_t
*m
, const char *fsid
,
751 struct scrub_progress
*data
, int n
)
758 ret
= pthread_mutex_lock(m
);
764 ret
= pthread_setcancelstate(PTHREAD_CANCEL_DISABLE
, &old
);
770 fd
= scrub_open_file_w(SCRUB_DATA_FILE
, fsid
, "tmp");
775 err
= scrub_write_file(fd
, fsid
, data
, n
);
778 err
= scrub_rename_file(SCRUB_DATA_FILE
, fsid
, "tmp");
789 ret
= pthread_mutex_unlock(m
);
793 ret
= pthread_setcancelstate(PTHREAD_CANCEL_ENABLE
, &old
);
800 static void *scrub_one_dev(void *ctx
)
802 struct scrub_progress
*sp
= ctx
;
806 sp
->stats
.canceled
= 0;
807 sp
->stats
.duration
= 0;
808 sp
->stats
.finished
= 0;
810 ret
= ioctl(sp
->fd
, BTRFS_IOC_SCRUB
, &sp
->scrub_args
);
811 gettimeofday(&tv
, NULL
);
813 sp
->stats
.duration
= tv
.tv_sec
- sp
->stats
.t_start
;
814 sp
->stats
.canceled
= !!ret
;
815 sp
->ioctl_errno
= errno
;
816 ret
= pthread_mutex_lock(&sp
->progress_mutex
);
818 return ERR_PTR(-ret
);
819 sp
->stats
.finished
= 1;
820 ret
= pthread_mutex_unlock(&sp
->progress_mutex
);
822 return ERR_PTR(-ret
);
827 static void *progress_one_dev(void *ctx
)
829 struct scrub_progress
*sp
= ctx
;
831 sp
->ret
= ioctl(sp
->fd
, BTRFS_IOC_SCRUB_PROGRESS
, &sp
->scrub_args
);
832 sp
->ioctl_errno
= errno
;
837 static void *scrub_progress_cycle(void *ctx
)
843 struct scrub_progress
*sp
;
844 struct scrub_progress
*sp_last
;
845 struct scrub_progress
*sp_shared
;
847 struct scrub_progress_cycle
*spc
= ctx
;
848 int ndev
= spc
->fi
->num_devices
;
852 struct pollfd accept_poll_fd
= {
857 struct pollfd write_poll_fd
= {
861 struct sockaddr_un peer
;
862 socklen_t peer_size
= sizeof(peer
);
864 ret
= pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS
, &old
);
866 return ERR_PTR(-ret
);
868 uuid_unparse(spc
->fi
->fsid
, fsid
);
870 for (i
= 0; i
< ndev
; ++i
) {
871 sp
= &spc
->progress
[i
];
872 sp_last
= &spc
->progress
[i
+ ndev
];
873 sp_shared
= &spc
->shared_progress
[i
];
874 sp
->scrub_args
.devid
= sp_last
->scrub_args
.devid
=
875 sp_shared
->scrub_args
.devid
;
876 sp
->fd
= sp_last
->fd
= spc
->fdmnt
;
877 sp
->stats
.t_start
= sp_last
->stats
.t_start
=
878 sp_shared
->stats
.t_start
;
879 sp
->resumed
= sp_last
->resumed
= sp_shared
->resumed
;
880 sp
->skip
= sp_last
->skip
= sp_shared
->skip
;
881 sp
->stats
.finished
= sp_last
->stats
.finished
=
882 sp_shared
->stats
.finished
;
886 ret
= poll(&accept_poll_fd
, 1, 5 * 1000);
888 return ERR_PTR(-errno
);
890 peer_fd
= accept(spc
->prg_fd
, (struct sockaddr
*)&peer
,
892 gettimeofday(&tv
, NULL
);
895 for (i
= 0; i
< ndev
; ++i
) {
896 sp
= &spc
->progress
[this * ndev
+ i
];
897 sp_last
= &spc
->progress
[last
* ndev
+ i
];
898 sp_shared
= &spc
->shared_progress
[i
];
899 if (sp
->stats
.finished
)
901 progress_one_dev(sp
);
902 sp
->stats
.duration
= tv
.tv_sec
- sp
->stats
.t_start
;
905 if (sp
->ioctl_errno
!= ENOTCONN
&&
906 sp
->ioctl_errno
!= ENODEV
)
907 return ERR_PTR(-sp
->ioctl_errno
);
909 * scrub finished or device removed, check the
910 * finished flag. if unset, just use the last
911 * result we got for the current write and go
912 * on. flag should be set on next cycle, then.
914 ret
= pthread_mutex_lock(&sp_shared
->progress_mutex
);
916 return ERR_PTR(-ret
);
917 if (!sp_shared
->stats
.finished
) {
918 ret
= pthread_mutex_unlock(
919 &sp_shared
->progress_mutex
);
921 return ERR_PTR(-ret
);
922 memcpy(sp
, sp_last
, sizeof(*sp
));
925 ret
= pthread_mutex_unlock(&sp_shared
->progress_mutex
);
927 return ERR_PTR(-ret
);
928 memcpy(sp
, sp_shared
, sizeof(*sp
));
929 memcpy(sp_last
, sp_shared
, sizeof(*sp
));
932 write_poll_fd
.fd
= peer_fd
;
933 ret
= poll(&write_poll_fd
, 1, 0);
935 return ERR_PTR(-errno
);
937 ret
= scrub_write_file(
939 &spc
->progress
[this * ndev
], ndev
);
948 ret
= scrub_write_progress(spc
->write_mutex
, fsid
,
949 &spc
->progress
[this * ndev
], ndev
);
955 static struct scrub_file_record
*last_dev_scrub(
956 struct scrub_file_record
*const *const past_scrubs
, u64 devid
)
960 if (!past_scrubs
|| IS_ERR(past_scrubs
))
963 for (i
= 0; past_scrubs
[i
]; ++i
)
964 if (past_scrubs
[i
]->devid
== devid
)
965 return past_scrubs
[i
];
970 static int scrub_device_info(int fd
, u64 devid
,
971 struct btrfs_ioctl_dev_info_args
*di_args
)
975 di_args
->devid
= devid
;
976 memset(&di_args
->uuid
, '\0', sizeof(di_args
->uuid
));
978 ret
= ioctl(fd
, BTRFS_IOC_DEV_INFO
, di_args
);
979 return ret
? -errno
: 0;
982 static int scrub_fs_info(int fd
, char *path
,
983 struct btrfs_ioctl_fs_info_args
*fi_args
,
984 struct btrfs_ioctl_dev_info_args
**di_ret
)
989 struct btrfs_fs_devices
*fs_devices_mnt
= NULL
;
990 struct btrfs_ioctl_dev_info_args
*di_args
;
991 char mp
[BTRFS_PATH_NAME_MAX
+ 1];
993 memset(fi_args
, 0, sizeof(*fi_args
));
995 ret
= ioctl(fd
, BTRFS_IOC_FS_INFO
, fi_args
);
996 if (ret
&& errno
== EINVAL
) {
997 /* path is no mounted btrfs. try if it's a device */
998 ret
= check_mounted_where(fd
, path
, mp
, sizeof(mp
),
1004 fi_args
->num_devices
= 1;
1005 fi_args
->max_id
= fs_devices_mnt
->latest_devid
;
1006 i
= fs_devices_mnt
->latest_devid
;
1007 memcpy(fi_args
->fsid
, fs_devices_mnt
->fsid
, BTRFS_FSID_SIZE
);
1009 fd
= open_file_or_dir(mp
);
1016 if (!fi_args
->num_devices
)
1019 di_args
= *di_ret
= malloc(fi_args
->num_devices
* sizeof(*di_args
));
1023 for (; i
<= fi_args
->max_id
; ++i
) {
1024 BUG_ON(ndevs
>= fi_args
->num_devices
);
1025 ret
= scrub_device_info(fd
, i
, &di_args
[ndevs
]);
1038 int mkdir_p(char *path
)
1043 for (i
= 1; i
< strlen(path
); ++i
) {
1047 ret
= mkdir(path
, 0777);
1048 if (ret
&& errno
!= EEXIST
)
1056 static const char * const cmd_scrub_start_usage
[];
1057 static const char * const cmd_scrub_resume_usage
[];
1059 static int scrub_start(int argc
, char **argv
, int resume
)
1069 int e_uncorrectable
= 0;
1070 int e_correctable
= 0;
1073 int do_background
= 1;
1079 int do_stats_per_dev
= 0;
1083 struct btrfs_ioctl_fs_info_args fi_args
;
1084 struct btrfs_ioctl_dev_info_args
*di_args
= NULL
;
1085 struct scrub_progress
*sp
= NULL
;
1086 struct scrub_fs_stat fs_stat
;
1088 struct sockaddr_un addr
= {
1089 .sun_family
= AF_UNIX
,
1091 pthread_t
*t_devs
= NULL
;
1093 pthread_attr_t t_attr
;
1094 struct scrub_file_record
**past_scrubs
= NULL
;
1095 struct scrub_file_record
*last_scrub
= NULL
;
1096 char *datafile
= strdup(SCRUB_DATA_FILE
);
1098 char sock_path
[BTRFS_PATH_NAME_MAX
+ 1] = "";
1099 struct scrub_progress_cycle spc
;
1100 pthread_mutex_t spc_write_mutex
= PTHREAD_MUTEX_INITIALIZER
;
1105 while ((c
= getopt(argc
, argv
, "BdqrR")) != -1) {
1113 do_stats_per_dev
= 1;
1126 usage(resume
? cmd_scrub_resume_usage
:
1127 cmd_scrub_start_usage
);
1131 /* try to catch most error cases before forking */
1133 if (check_argc_exact(argc
- optind
, 1)) {
1134 usage(resume
? cmd_scrub_resume_usage
:
1135 cmd_scrub_start_usage
);
1138 spc
.progress
= NULL
;
1139 if (do_quiet
&& do_print
)
1142 if (mkdir_p(datafile
)) {
1143 ERR(!do_quiet
, "WARNING: cannot create scrub data "
1144 "file, mkdir %s failed: %s. Status recording "
1145 "disabled\n", datafile
, strerror(errno
));
1150 path
= argv
[optind
];
1152 fdmnt
= open_file_or_dir(path
);
1154 ERR(!do_quiet
, "ERROR: can't access '%s'\n", path
);
1158 ret
= scrub_fs_info(fdmnt
, path
, &fi_args
, &di_args
);
1160 ERR(!do_quiet
, "ERROR: getting dev info for scrub failed: "
1161 "%s\n", strerror(-ret
));
1165 if (!fi_args
.num_devices
) {
1166 ERR(!do_quiet
, "ERROR: no devices found\n");
1171 uuid_unparse(fi_args
.fsid
, fsid
);
1172 fdres
= scrub_open_file_r(SCRUB_DATA_FILE
, fsid
);
1173 if (fdres
< 0 && fdres
!= -ENOENT
) {
1174 ERR(!do_quiet
, "WARNING: failed to open status file: "
1175 "%s\n", strerror(-fdres
));
1176 } else if (fdres
>= 0) {
1177 past_scrubs
= scrub_read_file(fdres
, !do_quiet
);
1178 if (IS_ERR(past_scrubs
))
1179 ERR(!do_quiet
, "WARNING: failed to read status file: "
1180 "%s\n", strerror(-PTR_ERR(past_scrubs
)));
1184 t_devs
= malloc(fi_args
.num_devices
* sizeof(*t_devs
));
1185 sp
= calloc(fi_args
.num_devices
, sizeof(*sp
));
1186 spc
.progress
= calloc(fi_args
.num_devices
* 2, sizeof(*spc
.progress
));
1188 if (!t_devs
|| !sp
|| !spc
.progress
) {
1189 ERR(!do_quiet
, "ERROR: scrub failed: %s", strerror(errno
));
1194 ret
= pthread_attr_init(&t_attr
);
1196 ERR(!do_quiet
, "ERROR: pthread_attr_init failed: %s\n",
1202 for (i
= 0; i
< fi_args
.num_devices
; ++i
) {
1203 devid
= di_args
[i
].devid
;
1204 ret
= pthread_mutex_init(&sp
[i
].progress_mutex
, NULL
);
1206 ERR(!do_quiet
, "ERROR: pthread_mutex_init failed: "
1207 "%s\n", strerror(ret
));
1211 last_scrub
= last_dev_scrub(past_scrubs
, devid
);
1212 sp
[i
].scrub_args
.devid
= devid
;
1214 if (resume
&& last_scrub
&& (last_scrub
->stats
.canceled
||
1215 !last_scrub
->stats
.finished
)) {
1217 sp
[i
].scrub_args
.start
= last_scrub
->p
.last_physical
;
1218 sp
[i
].resumed
= last_scrub
;
1219 } else if (resume
) {
1222 sp
[i
].resumed
= last_scrub
;
1226 sp
[i
].scrub_args
.start
= 0ll;
1227 sp
[i
].resumed
= NULL
;
1230 sp
[i
].scrub_args
.end
= (u64
)-1ll;
1231 sp
[i
].scrub_args
.flags
= readonly
? BTRFS_SCRUB_READONLY
: 0;
1234 if (!n_start
&& !n_resume
) {
1236 printf("scrub: nothing to resume for %s, fsid %s\n",
1242 ret
= prg_fd
= socket(AF_UNIX
, SOCK_STREAM
, 0);
1244 ret
= scrub_datafile(SCRUB_PROGRESS_SOCKET_PATH
, fsid
, NULL
,
1245 sock_path
, sizeof(sock_path
));
1246 /* ignore EOVERFLOW, try using a shorter path for the socket */
1247 addr
.sun_path
[sizeof(addr
.sun_path
) - 1] = '\0';
1248 strncpy(addr
.sun_path
, sock_path
, sizeof(addr
.sun_path
) - 1);
1249 ret
= bind(prg_fd
, (struct sockaddr
*)&addr
, sizeof(addr
));
1250 if (ret
!= -1 || errno
!= EADDRINUSE
)
1253 * bind failed with EADDRINUSE. so let's see if anyone answers
1254 * when we make a call to the socket ...
1256 ret
= connect(prg_fd
, (struct sockaddr
*)&addr
, sizeof(addr
));
1257 if (!ret
|| errno
!= ECONNREFUSED
) {
1258 /* ... yes, so scrub must be running. error out */
1259 fprintf(stderr
, "ERROR: scrub already running\n");
1264 * ... no, this means someone left us alone with an unused
1265 * socket in the file system. remove it and try again.
1267 ret
= unlink(sock_path
);
1270 ret
= listen(prg_fd
, 100);
1272 ERR(!do_quiet
, "WARNING: failed to open the progress status "
1273 "socket at %s: %s. Progress cannot be queried\n",
1274 sock_path
[0] ? sock_path
: SCRUB_PROGRESS_SOCKET_PATH
,
1285 /* write all-zero progress file for a start */
1286 ret
= scrub_write_progress(&spc_write_mutex
, fsid
, sp
,
1287 fi_args
.num_devices
);
1289 ERR(!do_quiet
, "WARNING: failed to write the progress "
1290 "status file: %s. Status recording disabled\n",
1296 if (do_background
) {
1299 ERR(!do_quiet
, "ERROR: cannot scrub, fork failed: "
1300 "%s\n", strerror(errno
));
1307 scrub_handle_sigint_parent();
1309 printf("scrub %s on %s, fsid %s (pid=%d)\n",
1310 n_start
? "started" : "resumed",
1318 ERR(!do_quiet
, "ERROR: wait failed: (ret=%d) "
1319 "%s\n", ret
, strerror(errno
));
1323 if (!WIFEXITED(stat
) || WEXITSTATUS(stat
)) {
1324 ERR(!do_quiet
, "ERROR: scrub process failed\n");
1325 err
= WIFEXITED(stat
) ? WEXITSTATUS(stat
) : -1;
1333 scrub_handle_sigint_child(fdmnt
);
1335 for (i
= 0; i
< fi_args
.num_devices
; ++i
) {
1337 sp
[i
].scrub_args
.progress
= sp
[i
].resumed
->p
;
1338 sp
[i
].stats
= sp
[i
].resumed
->stats
;
1340 sp
[i
].stats
.finished
= 1;
1343 devid
= di_args
[i
].devid
;
1344 gettimeofday(&tv
, NULL
);
1345 sp
[i
].stats
.t_start
= tv
.tv_sec
;
1346 ret
= pthread_create(&t_devs
[i
], &t_attr
,
1347 scrub_one_dev
, &sp
[i
]);
1350 fprintf(stderr
, "ERROR: creating "
1351 "scrub_one_dev[%llu] thread failed: "
1352 "%s\n", devid
, strerror(ret
));
1359 spc
.prg_fd
= prg_fd
;
1360 spc
.do_record
= do_record
;
1361 spc
.write_mutex
= &spc_write_mutex
;
1362 spc
.shared_progress
= sp
;
1364 ret
= pthread_create(&t_prog
, &t_attr
, scrub_progress_cycle
, &spc
);
1367 fprintf(stderr
, "ERROR: creating progress thread "
1368 "failed: %s\n", strerror(ret
));
1374 for (i
= 0; i
< fi_args
.num_devices
; ++i
) {
1377 devid
= di_args
[i
].devid
;
1378 ret
= pthread_join(t_devs
[i
], NULL
);
1381 fprintf(stderr
, "ERROR: pthread_join failed "
1382 "for scrub_one_dev[%llu]: %s\n", devid
,
1387 if (sp
[i
].ret
&& sp
[i
].ioctl_errno
== ENODEV
) {
1389 fprintf(stderr
, "WARNING: device %lld not "
1390 "present\n", devid
);
1393 if (sp
[i
].ret
&& sp
[i
].ioctl_errno
== ECANCELED
) {
1395 } else if (sp
[i
].ret
) {
1397 fprintf(stderr
, "ERROR: scrubbing %s failed "
1398 "for device id %lld (%s)\n", path
,
1399 devid
, strerror(sp
[i
].ioctl_errno
));
1403 if (sp
[i
].scrub_args
.progress
.uncorrectable_errors
> 0)
1405 if (sp
[i
].scrub_args
.progress
.corrected_errors
> 0
1406 || sp
[i
].scrub_args
.progress
.unverified_errors
> 0)
1411 const char *append
= "done";
1412 if (!do_stats_per_dev
)
1413 init_fs_stat(&fs_stat
);
1414 for (i
= 0; i
< fi_args
.num_devices
; ++i
) {
1415 if (do_stats_per_dev
) {
1416 print_scrub_dev(&di_args
[i
],
1417 &sp
[i
].scrub_args
.progress
,
1419 sp
[i
].ret
? "canceled" : "done",
1423 append
= "canceled";
1424 add_to_fs_stat(&sp
[i
].scrub_args
.progress
,
1425 &sp
[i
].stats
, &fs_stat
);
1428 if (!do_stats_per_dev
) {
1429 printf("scrub %s for %s\n", append
, fsid
);
1430 print_fs_stat(&fs_stat
, print_raw
);
1434 ret
= pthread_cancel(t_prog
);
1436 ret
= pthread_join(t_prog
, &terr
);
1437 if (do_print
&& ret
) {
1438 fprintf(stderr
, "ERROR: progress thead handling failed: %s\n",
1442 if (do_print
&& terr
&& terr
!= PTHREAD_CANCELED
) {
1443 fprintf(stderr
, "ERROR: recording progress "
1444 "failed: %s\n", strerror(-PTR_ERR(terr
)));
1448 ret
= scrub_write_progress(&spc_write_mutex
, fsid
, sp
,
1449 fi_args
.num_devices
);
1450 if (ret
&& do_print
) {
1451 fprintf(stderr
, "ERROR: failed to record the result: "
1452 "%s\n", strerror(-ret
));
1456 scrub_handle_sigint_child(-1);
1459 free_history(past_scrubs
);
1475 if (e_uncorrectable
)
1480 static const char * const cmd_scrub_start_usage
[] = {
1481 "btrfs scrub start [-Bdqr] <path>|<device>",
1482 "Start a new scrub",
1484 "-B do not background",
1485 "-d stats per device (-B only)",
1487 "-r read only mode",
1491 static int cmd_scrub_start(int argc
, char **argv
)
1493 return scrub_start(argc
, argv
, 0);
1496 static const char * const cmd_scrub_cancel_usage
[] = {
1497 "btrfs scrub cancel <path>|<device>",
1498 "Cancel a running scrub",
1502 static int cmd_scrub_cancel(int argc
, char **argv
)
1508 char mp
[BTRFS_PATH_NAME_MAX
+ 1];
1509 struct btrfs_fs_devices
*fs_devices_mnt
= NULL
;
1511 if (check_argc_exact(argc
, 2))
1512 usage(cmd_scrub_cancel_usage
);
1516 fdmnt
= open_file_or_dir(path
);
1518 fprintf(stderr
, "ERROR: scrub cancel failed\n");
1523 ret
= ioctl(fdmnt
, BTRFS_IOC_SCRUB_CANCEL
, NULL
);
1527 if (ret
&& err
== EINVAL
) {
1528 /* path is no mounted btrfs. try if it's a device */
1529 ret
= check_mounted_where(fdmnt
, path
, mp
, sizeof(mp
),
1533 fdmnt
= open_file_or_dir(mp
);
1542 fprintf(stderr
, "ERROR: scrub cancel failed on %s: %s\n", path
,
1543 err
== ENOTCONN
? "not running" : strerror(errno
));
1547 printf("scrub cancelled\n");
1552 static const char * const cmd_scrub_resume_usage
[] = {
1553 "btrfs scrub resume [-Bdqr] <path>|<device>",
1554 "Resume previously canceled or interrupted scrub",
1556 "-B do not background",
1557 "-d stats per device (-B only)",
1559 "-r read only mode",
1563 static int cmd_scrub_resume(int argc
, char **argv
)
1565 return scrub_start(argc
, argv
, 1);
1568 static const char * const cmd_scrub_status_usage
[] = {
1569 "btrfs scrub status [-dR] <path>|<device>",
1570 "Show status of running or finished scrub",
1572 "-d stats per device",
1573 "-R print raw stats",
1577 static int cmd_scrub_status(int argc
, char **argv
)
1580 struct btrfs_ioctl_fs_info_args fi_args
;
1581 struct btrfs_ioctl_dev_info_args
*di_args
= NULL
;
1582 struct scrub_file_record
**past_scrubs
= NULL
;
1583 struct scrub_file_record
*last_scrub
;
1584 struct scrub_fs_stat fs_stat
;
1585 struct sockaddr_un addr
= {
1586 .sun_family
= AF_UNIX
,
1592 int do_stats_per_dev
= 0;
1599 while ((c
= getopt(argc
, argv
, "dR")) != -1) {
1602 do_stats_per_dev
= 1;
1609 usage(cmd_scrub_status_usage
);
1613 if (check_argc_exact(argc
- optind
, 1))
1614 usage(cmd_scrub_status_usage
);
1616 path
= argv
[optind
];
1618 fdmnt
= open_file_or_dir(path
);
1620 fprintf(stderr
, "ERROR: can't access to '%s'\n", path
);
1624 ret
= scrub_fs_info(fdmnt
, path
, &fi_args
, &di_args
);
1626 fprintf(stderr
, "ERROR: getting dev info for scrub failed: "
1627 "%s\n", strerror(-ret
));
1631 if (!fi_args
.num_devices
) {
1632 fprintf(stderr
, "ERROR: no devices found\n");
1637 uuid_unparse(fi_args
.fsid
, fsid
);
1639 fdres
= socket(AF_UNIX
, SOCK_STREAM
, 0);
1641 fprintf(stderr
, "ERROR: failed to create socket to "
1642 "receive progress information: %s\n",
1647 scrub_datafile(SCRUB_PROGRESS_SOCKET_PATH
, fsid
,
1648 NULL
, addr
.sun_path
, sizeof(addr
.sun_path
));
1649 /* ignore EOVERFLOW, just use shorter name and hope for the best */
1650 addr
.sun_path
[sizeof(addr
.sun_path
) - 1] = '\0';
1651 ret
= connect(fdres
, (struct sockaddr
*)&addr
, sizeof(addr
));
1653 fdres
= scrub_open_file_r(SCRUB_DATA_FILE
, fsid
);
1654 if (fdres
< 0 && fdres
!= -ENOENT
) {
1655 fprintf(stderr
, "WARNING: failed to open status file: "
1656 "%s\n", strerror(-fdres
));
1663 past_scrubs
= scrub_read_file(fdres
, 1);
1664 if (IS_ERR(past_scrubs
))
1665 fprintf(stderr
, "WARNING: failed to read status: %s\n",
1666 strerror(-PTR_ERR(past_scrubs
)));
1669 printf("scrub status for %s\n", fsid
);
1671 if (do_stats_per_dev
) {
1672 for (i
= 0; i
< fi_args
.num_devices
; ++i
) {
1673 last_scrub
= last_dev_scrub(past_scrubs
,
1676 print_scrub_dev(&di_args
[i
], NULL
, print_raw
,
1680 print_scrub_dev(&di_args
[i
], &last_scrub
->p
, print_raw
,
1681 last_scrub
->stats
.finished
?
1682 "history" : "status",
1683 &last_scrub
->stats
);
1686 init_fs_stat(&fs_stat
);
1687 for (i
= 0; i
< fi_args
.num_devices
; ++i
) {
1688 last_scrub
= last_dev_scrub(past_scrubs
,
1692 add_to_fs_stat(&last_scrub
->p
, &last_scrub
->stats
,
1695 print_fs_stat(&fs_stat
, print_raw
);
1699 free_history(past_scrubs
);
1708 const struct cmd_group scrub_cmd_group
= {
1709 scrub_cmd_group_usage
, NULL
, {
1710 { "start", cmd_scrub_start
, cmd_scrub_start_usage
, NULL
, 0 },
1711 { "cancel", cmd_scrub_cancel
, cmd_scrub_cancel_usage
, NULL
, 0 },
1712 { "resume", cmd_scrub_resume
, cmd_scrub_resume_usage
, NULL
, 0 },
1713 { "status", cmd_scrub_status
, cmd_scrub_status_usage
, NULL
, 0 },
1718 int cmd_scrub(int argc
, char **argv
)
1720 return handle_command_group(&scrub_cmd_group
, argc
, argv
);