]>
git.ipfire.org Git - thirdparty/mdadm.git/blob - Create.c
2 * mdadm - manage Linux "md" devices aka RAID arrays.
4 * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * Email: <neilb@suse.de>
30 static int default_layout(struct supertype
*st
, int level
, int verbose
)
34 if (st
&& st
->ss
->default_layout
)
35 layout
= st
->ss
->default_layout(level
);
39 default: /* no layout */
43 layout
= 0x102; /* near=2, far=1 */
46 Name
": layout defaults to n2\n");
50 layout
= map_name(r5layout
, "default");
53 Name
": layout defaults to %s\n", map_num(r5layout
, layout
));
56 layout
= map_name(faultylayout
, "default");
60 Name
": layout defaults to %s\n", map_num(faultylayout
, layout
));
68 int Create(struct supertype
*st
, char *mddev
,
69 int chunk
, int level
, int layout
, unsigned long long size
,
70 int raiddisks
, int sparedisks
,
71 char *name
, char *homehost
, int *uuid
,
72 int subdevs
, mddev_dev_t devlist
,
73 int runstop
, int verbose
, int force
, int assume_clean
,
74 char *bitmap_file
, int bitmap_chunk
, int write_behind
,
78 * Create a new raid array.
80 * First check that necessary details are available
81 * (i.e. level, raid-disks)
83 * Then check each disk to see what might be on it
84 * and report anything interesting.
86 * If anything looks odd, and runstop not set,
89 * SET_ARRAY_INFO and ADD_NEW_DISK, and
90 * if runstop==run, or raiddisks disks were used,
94 unsigned long long minsize
=0, maxsize
=0;
101 int first_missing
= subdevs
* 2;
102 int second_missing
= subdevs
* 2;
103 int missing_disks
= 0;
104 int insert_point
= subdevs
* 2; /* where to insert a missing drive */
110 int have_container
= 0;
111 int container_fd
= -1;
113 unsigned long long bitmapsize
;
114 struct mdinfo info
, *infos
;
116 int do_default_layout
= 0;
117 unsigned long safe_mode_delay
= 0;
118 char chosen_name
[1024];
119 struct map_ent
*map
= NULL
;
120 unsigned long long newsize
;
122 int major_num
= BITMAP_MAJOR_HI
;
124 memset(&info
, 0, sizeof(info
));
126 if (level
== UnSet
) {
127 /* "ddf" and "imsm" metadata only supports one level - should possibly
128 * push this into metadata handler??
130 if (st
&& (st
->ss
== &super_ddf
|| st
->ss
== &super_imsm
))
131 level
= LEVEL_CONTAINER
;
134 if (level
== UnSet
) {
136 Name
": a RAID level is needed to create an array.\n");
139 if (raiddisks
< 4 && level
== 6) {
141 Name
": at least 4 raid-devices needed for level 6\n");
144 if (raiddisks
> 256 && level
== 6) {
146 Name
": no more than 256 raid-devices supported for level 6\n");
149 if (raiddisks
< 2 && level
>= 4) {
151 Name
": at least 2 raid-devices needed for level 4 or 5\n");
154 if (level
<= 0 && sparedisks
) {
156 Name
": This level does not support spare devices\n");
160 if (subdevs
== 1 && strcmp(devlist
->devname
, "missing") != 0) {
161 /* If given a single device, it might be a container, and we can
162 * extract a device list from there
164 mdu_array_info_t inf
;
167 memset(&inf
, 0, sizeof(inf
));
168 fd
= open(devlist
->devname
, O_RDONLY
);
170 ioctl(fd
, GET_ARRAY_INFO
, &inf
) == 0 &&
171 inf
.raid_disks
== 0) {
172 /* yep, looks like a container */
174 rv
= st
->ss
->load_super(st
, fd
,
179 st
= guess_super(fd
);
180 if (st
&& !(rv
= st
->ss
->
187 if (have_container
) {
189 first_missing
= subdevs
* 2;
190 second_missing
= subdevs
* 2;
191 insert_point
= subdevs
* 2;
197 if (st
&& st
->ss
->external
&& sparedisks
) {
199 Name
": This metadata type does not support "
200 "spare disks at create time\n");
203 if (subdevs
> raiddisks
+sparedisks
) {
204 fprintf(stderr
, Name
": You have listed more devices (%d) than are in the array(%d)!\n", subdevs
, raiddisks
+sparedisks
);
207 if (!have_container
&& subdevs
< raiddisks
+sparedisks
) {
208 fprintf(stderr
, Name
": You haven't given enough devices (real or missing) to create this array\n");
211 if (bitmap_file
&& level
<= 0) {
212 fprintf(stderr
, Name
": bitmaps not meaningful with level %s\n",
213 map_num(pers
, level
)?:"given");
217 /* now set some defaults */
220 if (layout
== UnSet
) {
221 do_default_layout
= 1;
222 layout
= default_layout(st
, level
, verbose
);
226 /* check layout fits in array*/
227 if ((layout
&255) * ((layout
>>8)&255) > raiddisks
) {
228 fprintf(stderr
, Name
": that layout requires at least %d devices\n",
229 (layout
&255) * ((layout
>>8)&255));
240 if (st
&& st
->ss
->default_chunk
)
241 chunk
= st
->ss
->default_chunk(st
);
243 chunk
= chunk
? : 512;
246 fprintf(stderr
, Name
": chunk size defaults to %dK\n", chunk
);
250 /* a chunksize of zero 0s perfectly valid (and preferred) since 2.6.16 */
251 if (get_linux_version() < 2006016 && chunk
== 0) {
254 fprintf(stderr
, Name
": chunk size defaults to 64K\n");
259 case LEVEL_MULTIPATH
:
260 case LEVEL_CONTAINER
:
264 fprintf(stderr
, Name
": chunk size ignored for this level\n");
268 fprintf(stderr
, Name
": unknown level %d\n", level
);
273 size
&= ~(unsigned long long)(chunk
- 1);
275 if (st
&& ! st
->ss
->validate_geometry(st
, level
, layout
, raiddisks
,
276 chunk
, size
*2, NULL
, &newsize
, verbose
>=0))
280 if (size
&& verbose
> 0)
281 fprintf(stderr
, Name
": setting size to %lluK\n",
282 (unsigned long long)size
);
285 /* now look at the subdevs */
286 info
.array
.active_disks
= 0;
287 info
.array
.working_disks
= 0;
289 for (dv
=devlist
; dv
&& !have_container
; dv
=dv
->next
, dnum
++) {
290 char *dname
= dv
->devname
;
291 unsigned long long freesize
;
292 if (strcasecmp(dname
, "missing")==0) {
293 if (first_missing
> dnum
)
294 first_missing
= dnum
;
295 if (second_missing
> dnum
&& dnum
> first_missing
)
296 second_missing
= dnum
;
300 info
.array
.working_disks
++;
301 if (dnum
< raiddisks
)
302 info
.array
.active_disks
++;
304 struct createinfo
*ci
= conf_get_create_info();
309 /* Need to choose a default metadata, which is different
310 * depending on geometry of array.
313 char *name
= "default";
314 for(i
=0; !st
&& superlist
[i
]; i
++) {
315 st
= superlist
[i
]->match_metadata_desc(name
);
316 if (do_default_layout
)
317 layout
= default_layout(st
, level
, verbose
);
318 if (st
&& !st
->ss
->validate_geometry
319 (st
, level
, layout
, raiddisks
,
320 chunk
, size
*2, dname
, &freesize
,
326 fprintf(stderr
, Name
": device %s not suitable "
327 "for any style of array\n",
331 if (st
->ss
!= &super0
||
332 st
->minor_version
!= 90)
335 if (do_default_layout
)
336 layout
= default_layout(st
, level
, verbose
);
337 if (!st
->ss
->validate_geometry(st
, level
, layout
,
339 chunk
, size
*2, dname
,
344 Name
": %s is not suitable for "
352 freesize
/= 2; /* convert to K */
354 /* round to chunk size */
355 freesize
= freesize
& ~(chunk
-1);
358 if (size
&& freesize
< size
) {
359 fprintf(stderr
, Name
": %s is smaller than given size."
360 " %lluK < %lluK + metadata\n",
361 dname
, freesize
, size
);
365 if (maxdisc
== NULL
|| (maxdisc
&& freesize
> maxsize
)) {
369 if (mindisc
==NULL
|| (mindisc
&& freesize
< minsize
)) {
373 if (runstop
!= 1 || verbose
>= 0) {
374 int fd
= open(dname
, O_RDONLY
);
376 fprintf(stderr
, Name
": Cannot open %s: %s\n",
377 dname
, strerror(errno
));
381 warn
|= check_ext2(fd
, dname
);
382 warn
|= check_reiser(fd
, dname
);
383 warn
|= check_raid(fd
, dname
);
384 if (strcmp(st
->ss
->name
, "1.x") == 0 &&
385 st
->minor_version
>= 1)
386 /* metadata at front */
387 warn
|= check_partitions(fd
, dname
, 0);
388 else if (level
== 1 || level
== LEVEL_CONTAINER
)
389 /* partitions could be meaningful */
390 warn
|= check_partitions(fd
, dname
, freesize
*2);
392 /* partitions cannot be meaningful */
393 warn
|= check_partitions(fd
, dname
, 0);
394 if (strcmp(st
->ss
->name
, "1.x") == 0 &&
395 st
->minor_version
>= 1 &&
398 (warn
& 1024) == 0) {
400 fprintf(stderr
, Name
": Note: this array has metadata at the start and\n"
401 " may not be suitable as a boot device. If you plan to\n"
402 " store '/boot' on this device please ensure that\n"
403 " your boot-loader understands md/v1.x metadata, or use\n"
404 " --metadata=0.90\n");
409 if (raiddisks
+ sparedisks
> st
->max_devs
) {
410 fprintf(stderr
, Name
": Too many devices:"
411 " %s metadata only supports %d\n",
412 st
->ss
->name
, st
->max_devs
);
416 info
.array
.working_disks
= raiddisks
;
418 fprintf(stderr
, Name
": create aborted\n");
422 if (mindisc
== NULL
&& !have_container
) {
423 fprintf(stderr
, Name
": no size and no drives given - aborting create.\n");
426 if (level
> 0 || level
== LEVEL_MULTIPATH
427 || level
== LEVEL_FAULTY
428 || st
->ss
->external
) {
429 /* size is meaningful */
430 if (!st
->ss
->validate_geometry(st
, level
, layout
,
434 fprintf(stderr
, Name
": devices too large for RAID level %d\n", level
);
439 fprintf(stderr
, Name
": size set to %lluK\n", size
);
442 if (!have_container
&& level
> 0 && ((maxsize
-size
)*100 > maxsize
)) {
443 if (runstop
!= 1 || verbose
>= 0)
444 fprintf(stderr
, Name
": largest drive (%s) exceeds size (%lluK) by more than 1%%\n",
449 if (st
->ss
->detail_platform
&& st
->ss
->detail_platform(0, 1) != 0) {
450 if (runstop
!= 1 || verbose
>= 0)
451 fprintf(stderr
, Name
": %s unable to enumerate platform support\n"
452 " array may not be compatible with hardware/firmware\n",
459 if (!ask("Continue creating array? ")) {
460 fprintf(stderr
, Name
": create aborted.\n");
465 fprintf(stderr
, Name
": creation continuing despite oddities due to --run\n");
469 /* If this is raid4/5, we want to configure the last active slot
470 * as missing, so that a reconstruct happens (faster than re-parity)
471 * FIX: Can we do this for raid6 as well?
473 if (st
->ss
->external
== 0 &&
474 assume_clean
==0 && force
== 0 && first_missing
>= raiddisks
) {
478 insert_point
= raiddisks
-1;
480 info
.array
.active_disks
--;
487 /* For raid6, if creating with 1 missing drive, make a good drive
488 * into a spare, else the create will fail
490 if (assume_clean
== 0 && force
== 0 && first_missing
< raiddisks
&&
491 st
->ss
->external
== 0 &&
492 second_missing
>= raiddisks
&& level
== 6) {
493 insert_point
= raiddisks
- 1;
494 if (insert_point
== first_missing
)
497 info
.array
.active_disks
--;
501 if (level
<= 0 && first_missing
< subdevs
* 2) {
503 Name
": This level does not support missing devices\n");
507 /* We need to create the device */
509 mdfd
= create_mddev(mddev
, name
, autof
, LOCAL
, chosen_name
);
514 vers
= md_get_version(mdfd
);
516 fprintf(stderr
, Name
": Create requires md driver version 0.90.0 or later\n");
519 mdu_array_info_t inf
;
520 memset(&inf
, 0, sizeof(inf
));
521 ioctl(mdfd
, GET_ARRAY_INFO
, &inf
);
522 if (inf
.working_disks
!= 0) {
523 fprintf(stderr
, Name
": another array by this name"
524 " is already running.\n");
529 /* Ok, lets try some ioctls */
531 info
.array
.level
= level
;
532 info
.array
.size
= size
;
533 info
.array
.raid_disks
= raiddisks
;
534 /* The kernel should *know* what md_minor we are dealing
535 * with, but it chooses to trust me instead. Sigh
537 info
.array
.md_minor
= 0;
538 if (fstat(mdfd
, &stb
)==0)
539 info
.array
.md_minor
= minor(stb
.st_rdev
);
540 info
.array
.not_persistent
= 0;
542 if ( ( (level
== 4 || level
== 5) &&
543 (insert_point
< raiddisks
|| first_missing
< raiddisks
) )
545 ( level
== 6 && (insert_point
< raiddisks
546 || second_missing
< raiddisks
))
552 info
.array
.state
= 1; /* clean, but one+ drive will be missing*/
553 info
.resync_start
= MaxSector
;
555 info
.array
.state
= 0; /* not clean, but no errors */
556 info
.resync_start
= 0;
559 /* for raid10, the bitmap size is the capacity of the array,
560 * which is array.size * raid_disks / ncopies;
561 * .. but convert to sectors.
563 int ncopies
= ((layout
>>8) & 255) * (layout
& 255);
564 bitmapsize
= (unsigned long long)size
* raiddisks
/ ncopies
* 2;
565 /* printf("bms=%llu as=%d rd=%d nc=%d\n", bitmapsize, size, raiddisks, ncopies);*/
567 bitmapsize
= (unsigned long long)size
* 2;
569 /* There is lots of redundancy in these disk counts,
570 * raid_disks is the most meaningful value
571 * it describes the geometry of the array
573 * nr_disks is total number of used slots.
574 * it should be raid_disks+spare_disks
575 * spare_disks is the number of extra disks present
577 * active_disks is the number of working disks in
578 * active slots. (With raid_disks)
579 * working_disks is the total number of working disks,
581 * failed_disks is the number of disks marked failed
583 * Ideally, the kernel would keep these (except raid_disks)
584 * up-to-date as we ADD_NEW_DISK, but it doesn't (yet).
585 * So for now, we assume that all raid and spare
586 * devices will be given.
588 info
.array
.spare_disks
=sparedisks
;
589 info
.array
.failed_disks
=missing_disks
;
590 info
.array
.nr_disks
= info
.array
.working_disks
591 + info
.array
.failed_disks
;
592 info
.array
.layout
= layout
;
593 info
.array
.chunk_size
= chunk
*1024;
595 if (name
== NULL
|| *name
== 0) {
596 /* base name on mddev */
601 * /dev/md/home -> home
602 * /dev/mdhome -> home
604 /* FIXME compare this with rules in create_mddev */
605 name
= strrchr(mddev
, '/');
608 if (strncmp(name
, "md_d", 4)==0 &&
611 (name
-mddev
) == 5 /* /dev/ */)
613 else if (strncmp(name
, "md", 2)==0 &&
616 (name
-mddev
) == 5 /* /dev/ */)
620 if (!st
->ss
->init_super(st
, &info
.array
, size
, name
, homehost
, uuid
))
623 total_slots
= info
.array
.nr_disks
;
624 sysfs_init(&info
, mdfd
, 0);
625 st
->ss
->getinfo_super(st
, &info
);
627 if (did_default
&& verbose
>= 0) {
628 if (is_subarray(info
.text_version
)) {
629 int dnum
= devname2devnum(info
.text_version
+1);
631 int mdp
= get_mdp_major();
634 path
= map_dev(MD_MAJOR
, dnum
, 1);
636 path
= map_dev(mdp
, (-1-dnum
)<< 6, 1);
638 mdi
= sysfs_read(-1, dnum
, GET_VERSION
);
640 fprintf(stderr
, Name
": Creating array inside "
642 mdi
?mdi
->text_version
:"managed", path
);
645 fprintf(stderr
, Name
": Defaulting to version"
646 " %s metadata\n", info
.text_version
);
649 map_update(&map
, fd2devnum(mdfd
), info
.text_version
,
650 info
.uuid
, chosen_name
);
653 if (bitmap_file
&& vers
< 9003) {
654 major_num
= BITMAP_MAJOR_HOSTENDIAN
;
656 fprintf(stderr
, Name
": Warning - bitmaps created on this kernel are not portable\n"
657 " between different architectured. Consider upgrading the Linux kernel.\n");
661 if (bitmap_file
&& strcmp(bitmap_file
, "internal")==0) {
662 if ((vers
%100) < 2) {
663 fprintf(stderr
, Name
": internal bitmaps not supported by this kernel.\n");
666 if (!st
->ss
->add_internal_bitmap
) {
667 fprintf(stderr
, Name
": internal bitmaps not supported with %s metadata\n",
671 if (!st
->ss
->add_internal_bitmap(st
, &bitmap_chunk
,
673 bitmapsize
, 1, major_num
)) {
674 fprintf(stderr
, Name
": Given bitmap chunk size not supported.\n");
681 sysfs_init(&info
, mdfd
, 0);
683 if (st
->ss
->external
&& st
->subarray
[0]) {
686 /* When creating a member, we need to be careful
687 * to negotiate with mdmon properly.
688 * If it is already running, we cannot write to
689 * the devices and must ask it to do that part.
690 * If it isn't running, we write to the devices,
692 * We hold an exclusive open on the container
693 * device to make sure mdmon doesn't exit after
694 * we checked that it is running.
696 * For now, fail if it is already running.
698 container_fd
= open_dev_excl(st
->container_dev
);
699 if (container_fd
< 0) {
700 fprintf(stderr
, Name
": Cannot get exclusive "
701 "open on container - weird.\n");
704 if (mdmon_running(st
->container_dev
)) {
706 fprintf(stderr
, Name
": reusing mdmon "
708 devnum2devname(st
->container_dev
));
709 st
->update_tail
= &st
->updates
;
713 rv
= set_array_info(mdfd
, st
, &info
);
715 fprintf(stderr
, Name
": failed to set array info for %s: %s\n",
716 mddev
, strerror(errno
));
723 st
->ss
->uuid_from_super(st
, uuid
);
724 if (CreateBitmap(bitmap_file
, force
, (char*)uuid
, bitmap_chunk
,
730 bitmap_fd
= open(bitmap_file
, O_RDWR
);
732 fprintf(stderr
, Name
": weird: %s cannot be openned\n",
736 if (ioctl(mdfd
, SET_BITMAP_FILE
, bitmap_fd
) < 0) {
737 fprintf(stderr
, Name
": Cannot set bitmap file for %s: %s\n",
738 mddev
, strerror(errno
));
743 infos
= malloc(sizeof(*infos
) * total_slots
);
745 for (pass
=1; pass
<=2 ; pass
++) {
746 mddev_dev_t moved_disk
= NULL
; /* the disk that was moved out of the insert point */
748 for (dnum
=0, dv
= devlist
; dv
;
749 dv
=(dv
->next
)?(dv
->next
):moved_disk
, dnum
++) {
752 struct mdinfo
*inf
= &infos
[dnum
];
754 if (dnum
>= total_slots
)
756 if (dnum
== insert_point
) {
760 if (strcasecmp(dv
->devname
, "missing")==0)
764 if (have_container
&& dnum
< info
.array
.raid_disks
- 1)
765 /* repeatedly use the container */
772 inf
->disk
.number
= dnum
;
773 inf
->disk
.raid_disk
= dnum
;
774 if (inf
->disk
.raid_disk
< raiddisks
)
775 inf
->disk
.state
= (1<<MD_DISK_ACTIVE
) |
780 if (dv
->writemostly
== 1)
781 inf
->disk
.state
|= (1<<MD_DISK_WRITEMOSTLY
);
786 if (st
->ss
->external
&& st
->subarray
[0])
787 fd
= open(dv
->devname
, O_RDWR
);
789 fd
= open(dv
->devname
, O_RDWR
|O_EXCL
);
792 fprintf(stderr
, Name
": failed to open %s "
793 "after earlier success - aborting\n",
798 inf
->disk
.major
= major(stb
.st_rdev
);
799 inf
->disk
.minor
= minor(stb
.st_rdev
);
802 remove_partitions(fd
);
803 if (st
->ss
->add_to_super(st
, &inf
->disk
,
805 ioctl(mdfd
, STOP_ARRAY
, NULL
);
808 st
->ss
->getinfo_super(st
, inf
);
809 safe_mode_delay
= inf
->safe_mode_delay
;
811 if (have_container
&& verbose
> 0)
812 fprintf(stderr
, Name
": Using %s for device %d\n",
813 map_dev(inf
->disk
.major
,
817 if (!have_container
) {
818 /* getinfo_super might have lost these ... */
819 inf
->disk
.major
= major(stb
.st_rdev
);
820 inf
->disk
.minor
= minor(stb
.st_rdev
);
827 rv
= add_disk(mdfd
, st
, &info
, inf
);
831 Name
": ADD_NEW_DISK for %s "
833 dv
->devname
, strerror(errno
));
834 st
->ss
->free_super(st
);
839 if (!have_container
&&
840 dv
== moved_disk
&& dnum
!= insert_point
) break;
843 struct mdinfo info_new
;
844 struct map_ent
*me
= NULL
;
846 /* check to see if the uuid has changed due to these
847 * metadata changes, and if so update the member array
848 * and container uuid. Note ->write_init_super clears
849 * the subarray cursor such that ->getinfo_super once
850 * again returns container info.
853 st
->ss
->getinfo_super(st
, &info_new
);
854 if (st
->ss
->external
&& level
!= LEVEL_CONTAINER
&&
855 !same_uuid(info_new
.uuid
, info
.uuid
, 0)) {
856 map_update(&map
, fd2devnum(mdfd
),
857 info_new
.text_version
,
858 info_new
.uuid
, chosen_name
);
859 me
= map_by_devnum(&map
, st
->container_dev
);
862 st
->ss
->write_init_super(st
);
864 /* update parent container uuid */
866 char *path
= strdup(me
->path
);
868 st
->ss
->getinfo_super(st
, &info_new
);
869 map_update(&map
, st
->container_dev
,
870 info_new
.text_version
,
871 info_new
.uuid
, path
);
876 flush_metadata_updates(st
);
880 st
->ss
->free_super(st
);
882 if (level
== LEVEL_CONTAINER
) {
883 /* No need to start. But we should signal udev to
885 sysfs_uevent(&info
, "change");
887 fprintf(stderr
, Name
": container %s prepared.\n", mddev
);
888 wait_for(chosen_name
, mdfd
);
889 } else if (runstop
== 1 || subdevs
>= raiddisks
) {
890 if (st
->ss
->external
) {
894 case LEVEL_MULTIPATH
:
896 err
= sysfs_set_str(&info
, NULL
, "array_state",
901 err
= sysfs_set_str(&info
, NULL
, "array_state",
905 sysfs_set_safemode(&info
, safe_mode_delay
);
907 fprintf(stderr
, Name
": failed to"
908 " activate array.\n");
909 ioctl(mdfd
, STOP_ARRAY
, NULL
);
913 /* param is not actually used */
915 if (ioctl(mdfd
, RUN_ARRAY
, ¶m
)) {
916 fprintf(stderr
, Name
": RUN_ARRAY failed: %s\n",
918 ioctl(mdfd
, STOP_ARRAY
, NULL
);
923 fprintf(stderr
, Name
": array %s started.\n", mddev
);
924 if (st
->ss
->external
&& st
->subarray
[0]) {
926 start_mdmon(st
->container_dev
);
928 ping_monitor(devnum2devname(st
->container_dev
));
931 wait_for(chosen_name
, mdfd
);
933 fprintf(stderr
, Name
": not starting array - not enough devices.\n");
940 map_remove(&map
, fd2devnum(mdfd
));