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Commit | Line | Data |
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85fda4dd | 1 | package PVE::Storage::ZFSPoolPlugin; |
5bb8e010 DM |
2 | |
3 | use strict; | |
4 | use warnings; | |
5 | use IO::File; | |
6 | use POSIX; | |
7 | use PVE::Tools qw(run_command); | |
8 | use PVE::Storage::Plugin; | |
9 | ||
10 | ||
11 | use base qw(PVE::Storage::Plugin); | |
12 | ||
5bb8e010 | 13 | sub type { |
85fda4dd | 14 | return 'zfspool'; |
5bb8e010 DM |
15 | } |
16 | ||
17 | sub plugindata { | |
18 | return { | |
1ccae449 DM |
19 | content => [ {images => 1, rootdir => 1}, {images => 1 , rootdir => 1}], |
20 | format => [ { raw => 1, subvol => 1 } , 'raw' ], | |
5bb8e010 | 21 | }; |
85fda4dd | 22 | } |
5bb8e010 | 23 | |
7730694e DM |
24 | sub properties { |
25 | return { | |
26 | blocksize => { | |
27 | description => "block size", | |
28 | type => 'string', | |
29 | }, | |
30 | sparse => { | |
31 | description => "use sparse volumes", | |
32 | type => 'boolean', | |
33 | }, | |
34 | }; | |
35 | } | |
36 | ||
5bb8e010 DM |
37 | sub options { |
38 | return { | |
7730694e DM |
39 | pool => { fixed => 1 }, |
40 | blocksize => { optional => 1 }, | |
41 | sparse => { optional => 1 }, | |
42 | nodes => { optional => 1 }, | |
5bb8e010 DM |
43 | disable => { optional => 1 }, |
44 | maxfiles => { optional => 1 }, | |
45 | content => { optional => 1 }, | |
46 | }; | |
47 | } | |
48 | ||
7730694e DM |
49 | # static zfs helper methods |
50 | ||
060ef890 DM |
51 | sub zfs_parse_size { |
52 | my ($text) = @_; | |
53 | ||
54 | return 0 if !$text; | |
55 | ||
56 | if ($text =~ m/^(\d+(\.\d+)?)([TGMK])?$/) { | |
57 | ||
58 | my ($size, $reminder, $unit) = ($1, $2, $3); | |
59 | ||
60 | if ($unit) { | |
61 | if ($unit eq 'K') { | |
62 | $size *= 1024; | |
63 | } elsif ($unit eq 'M') { | |
64 | $size *= 1024*1024; | |
65 | } elsif ($unit eq 'G') { | |
66 | $size *= 1024*1024*1024; | |
67 | } elsif ($unit eq 'T') { | |
68 | $size *= 1024*1024*1024*1024; | |
69 | } else { | |
70 | die "got unknown zfs size unit '$unit'\n"; | |
71 | } | |
72 | } | |
73 | ||
74 | if ($reminder) { | |
75 | $size = ceil($size); | |
76 | } | |
77 | ||
78 | return $size; | |
79 | ||
80 | } | |
81 | ||
82 | warn "unable to parse zfs size '$text'\n"; | |
83 | ||
84 | return 0; | |
85 | } | |
86 | ||
7730694e DM |
87 | sub zfs_parse_zvol_list { |
88 | my ($text) = @_; | |
89 | ||
90 | my $list = (); | |
91 | ||
92 | return $list if !$text; | |
93 | ||
94 | my @lines = split /\n/, $text; | |
95 | foreach my $line (@lines) { | |
1ccae449 DM |
96 | my ($dataset, $size, $origin, $type, $refquota) = split(/\s+/, $line); |
97 | next if !($type eq 'volume' || $type eq 'filesystem'); | |
98 | ||
99 | my $zvol = {}; | |
100 | my @parts = split /\//, $dataset; | |
dec97937 | 101 | next if scalar(@parts) < 2; # we need pool/name |
1ccae449 DM |
102 | my $name = pop @parts; |
103 | my $pool = join('/', @parts); | |
104 | ||
105 | next unless $name =~ m!^(vm|base|subvol)-(\d+)-(\S+)$!; | |
106 | $zvol->{owner} = $2; | |
107 | ||
1ccae449 DM |
108 | $zvol->{pool} = $pool; |
109 | $zvol->{name} = $name; | |
110 | if ($type eq 'filesystem') { | |
111 | if ($refquota eq 'none') { | |
112 | $zvol->{size} = 0; | |
113 | } else { | |
114 | $zvol->{size} = zfs_parse_size($refquota); | |
7730694e | 115 | } |
1ccae449 DM |
116 | $zvol->{format} = 'subvol'; |
117 | } else { | |
118 | $zvol->{size} = zfs_parse_size($size); | |
119 | $zvol->{format} = 'raw'; | |
7730694e | 120 | } |
1ccae449 DM |
121 | if ($origin !~ /^-$/) { |
122 | $zvol->{origin} = $origin; | |
123 | } | |
124 | push @$list, $zvol; | |
7730694e DM |
125 | } |
126 | ||
127 | return $list; | |
128 | } | |
129 | ||
cc80ed9c WL |
130 | sub parse_volname { |
131 | my ($class, $volname) = @_; | |
132 | ||
1ccae449 | 133 | if ($volname =~ m/^(((base|vm)-(\d+)-\S+)\/)?((base)?(vm|subvol)?-(\d+)-\S+)$/) { |
55525ad2 DM |
134 | my $format = $7 && $7 eq 'subvol' ? 'subvol' : 'raw'; |
135 | return ('images', $5, $8, $2, $4, $6, $format); | |
cc80ed9c WL |
136 | } |
137 | ||
138 | die "unable to parse zfs volume name '$volname'\n"; | |
139 | } | |
140 | ||
7730694e DM |
141 | # virtual zfs methods (subclass can overwrite them) |
142 | ||
f3e632d0 | 143 | sub path { |
e67069eb | 144 | my ($class, $scfg, $volname, $storeid, $snapname) = @_; |
f3e632d0 WL |
145 | |
146 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
147 | ||
148 | my $path = ''; | |
149 | ||
1ccae449 DM |
150 | if ($vtype eq "images") { |
151 | if ($volname =~ m/^subvol-/) { | |
152 | # fixme: we currently assume standard mount point?! | |
d6d924d0 | 153 | $path = "/$scfg->{pool}/$volname"; |
1ccae449 DM |
154 | } else { |
155 | $path = "/dev/zvol/$scfg->{pool}/$volname"; | |
156 | } | |
e67069eb | 157 | $path .= "\@$snapname" if defined($snapname); |
f3e632d0 | 158 | } else { |
85fda4dd | 159 | die "$vtype is not allowed in ZFSPool!"; |
f3e632d0 WL |
160 | } |
161 | ||
162 | return ($path, $vmid, $vtype); | |
163 | } | |
164 | ||
7730694e DM |
165 | sub zfs_request { |
166 | my ($class, $scfg, $timeout, $method, @params) = @_; | |
167 | ||
168 | $timeout = 5 if !$timeout; | |
169 | ||
170 | my $cmd = []; | |
171 | ||
172 | if ($method eq 'zpool_list') { | |
86d47239 | 173 | push @$cmd, 'zpool', 'list'; |
7730694e DM |
174 | } else { |
175 | push @$cmd, 'zfs', $method; | |
176 | } | |
177 | ||
178 | push @$cmd, @params; | |
179 | ||
180 | my $msg = ''; | |
181 | ||
182 | my $output = sub { | |
183 | my $line = shift; | |
184 | $msg .= "$line\n"; | |
185 | }; | |
186 | ||
1f390a30 | 187 | run_command($cmd, errmsg => "zfs error", outfunc => $output, timeout => $timeout); |
7730694e DM |
188 | |
189 | return $msg; | |
190 | } | |
191 | ||
b3ba95e4 WL |
192 | sub alloc_image { |
193 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
194 | ||
1ccae449 DM |
195 | my $volname = $name; |
196 | ||
197 | if ($fmt eq 'raw') { | |
b3ba95e4 | 198 | |
1ccae449 DM |
199 | die "illegal name '$volname' - sould be 'vm-$vmid-*'\n" |
200 | if $volname && $volname !~ m/^vm-$vmid-/; | |
55525ad2 | 201 | $volname = $class->zfs_find_free_diskname($storeid, $scfg, $vmid, $fmt) |
1ccae449 | 202 | if !$volname; |
b3ba95e4 | 203 | |
1ccae449 DM |
204 | $class->zfs_create_zvol($scfg, $volname, $size); |
205 | my $devname = "/dev/zvol/$scfg->{pool}/$volname"; | |
82e08809 | 206 | |
1ccae449 DM |
207 | run_command("udevadm trigger --subsystem-match block"); |
208 | system("udevadm settle --timeout 10 --exit-if-exists=${devname}"); | |
76fd7dc7 | 209 | |
1ccae449 | 210 | } elsif ( $fmt eq 'subvol') { |
55525ad2 DM |
211 | |
212 | die "illegal name '$volname' - sould be 'subvol-$vmid-*'\n" | |
213 | if $volname && $volname !~ m/^subvol-$vmid-/; | |
214 | $volname = $class->zfs_find_free_diskname($storeid, $scfg, $vmid, $fmt) | |
215 | if !$volname; | |
216 | ||
1ccae449 DM |
217 | die "illegal name '$volname' - sould be 'subvol-$vmid-*'\n" |
218 | if $volname !~ m/^subvol-$vmid-/; | |
76fd7dc7 | 219 | |
1ccae449 DM |
220 | $class->zfs_create_subvol($scfg, $volname, $size); |
221 | ||
222 | } else { | |
223 | die "unsupported format '$fmt'"; | |
224 | } | |
b3ba95e4 | 225 | |
82e08809 | 226 | return $volname; |
b3ba95e4 WL |
227 | } |
228 | ||
e9565df5 WL |
229 | sub free_image { |
230 | my ($class, $storeid, $scfg, $volname, $isBase) = @_; | |
231 | ||
232 | my (undef, $name, undef) = $class->parse_volname($volname); | |
233 | ||
234 | $class->zfs_delete_zvol($scfg, $name); | |
235 | ||
236 | return undef; | |
237 | } | |
238 | ||
ca04180f WL |
239 | sub list_images { |
240 | my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_; | |
241 | ||
242 | $cache->{zfs} = $class->zfs_list_zvol($scfg) if !$cache->{zfs}; | |
243 | my $zfspool = $scfg->{pool}; | |
244 | my $res = []; | |
245 | ||
246 | if (my $dat = $cache->{zfs}->{$zfspool}) { | |
247 | ||
248 | foreach my $image (keys %$dat) { | |
249 | ||
250 | my $volname = $dat->{$image}->{name}; | |
251 | my $parent = $dat->{$image}->{parent}; | |
252 | ||
253 | my $volid = undef; | |
254 | if ($parent && $parent =~ m/^(\S+)@(\S+)$/) { | |
255 | my ($basename) = ($1); | |
256 | $volid = "$storeid:$basename/$volname"; | |
257 | } else { | |
258 | $volid = "$storeid:$volname"; | |
259 | } | |
260 | ||
261 | my $owner = $dat->{$volname}->{vmid}; | |
262 | if ($vollist) { | |
263 | my $found = grep { $_ eq $volid } @$vollist; | |
264 | next if !$found; | |
265 | } else { | |
266 | next if defined ($vmid) && ($owner ne $vmid); | |
267 | } | |
268 | ||
269 | my $info = $dat->{$volname}; | |
270 | $info->{volid} = $volid; | |
271 | push @$res, $info; | |
272 | } | |
273 | } | |
ca04180f WL |
274 | return $res; |
275 | } | |
276 | ||
7730694e DM |
277 | sub zfs_get_pool_stats { |
278 | my ($class, $scfg) = @_; | |
279 | ||
280 | my $available = 0; | |
281 | my $used = 0; | |
282 | ||
283 | my $text = $class->zfs_request($scfg, undef, 'get', '-o', 'value', '-Hp', | |
284 | 'available,used', $scfg->{pool}); | |
285 | ||
286 | my @lines = split /\n/, $text; | |
287 | ||
288 | if($lines[0] =~ /^(\d+)$/) { | |
289 | $available = $1; | |
290 | } | |
291 | ||
292 | if($lines[1] =~ /^(\d+)$/) { | |
293 | $used = $1; | |
294 | } | |
295 | ||
296 | return ($available, $used); | |
297 | } | |
298 | ||
7730694e DM |
299 | sub zfs_create_zvol { |
300 | my ($class, $scfg, $zvol, $size) = @_; | |
301 | ||
302 | my $cmd = ['create']; | |
303 | ||
304 | push @$cmd, '-s' if $scfg->{sparse}; | |
305 | ||
306 | push @$cmd, '-b', $scfg->{blocksize} if $scfg->{blocksize}; | |
307 | ||
308 | push @$cmd, '-V', "${size}k", "$scfg->{pool}/$zvol"; | |
309 | ||
310 | $class->zfs_request($scfg, undef, @$cmd); | |
311 | } | |
312 | ||
1ccae449 DM |
313 | sub zfs_create_subvol { |
314 | my ($class, $scfg, $volname, $size) = @_; | |
315 | ||
316 | my $dataset = "$scfg->{pool}/$volname"; | |
317 | ||
318 | my $cmd = ['create', '-o', "refquota=${size}k", $dataset]; | |
319 | ||
320 | $class->zfs_request($scfg, undef, @$cmd); | |
321 | } | |
322 | ||
7730694e DM |
323 | sub zfs_delete_zvol { |
324 | my ($class, $scfg, $zvol) = @_; | |
325 | ||
1f390a30 WL |
326 | my $err; |
327 | ||
328 | for (my $i = 0; $i < 6; $i++) { | |
329 | ||
330 | eval { $class->zfs_request($scfg, undef, 'destroy', '-r', "$scfg->{pool}/$zvol"); }; | |
331 | if ($err = $@) { | |
332 | if ($err =~ m/^zfs error:(.*): dataset is busy.*/) { | |
333 | sleep(1); | |
27ff0e99 WL |
334 | } elsif ($err =~ m/^zfs error:.*: dataset does not exist.*$/) { |
335 | $err = undef; | |
336 | last; | |
1f390a30 WL |
337 | } else { |
338 | die $err; | |
339 | } | |
340 | } else { | |
341 | last; | |
342 | } | |
343 | } | |
344 | ||
345 | die $err if $err; | |
7730694e DM |
346 | } |
347 | ||
348 | sub zfs_list_zvol { | |
349 | my ($class, $scfg) = @_; | |
350 | ||
1ccae449 | 351 | my $text = $class->zfs_request($scfg, 10, 'list', '-o', 'name,volsize,origin,type,refquota', '-t', 'volume,filesystem', '-Hr'); |
7730694e DM |
352 | my $zvols = zfs_parse_zvol_list($text); |
353 | return undef if !$zvols; | |
354 | ||
355 | my $list = (); | |
356 | foreach my $zvol (@$zvols) { | |
1ccae449 DM |
357 | my $pool = $zvol->{pool}; |
358 | my $name = $zvol->{name}; | |
7730694e DM |
359 | my $parent = $zvol->{origin}; |
360 | if($zvol->{origin} && $zvol->{origin} =~ m/^$scfg->{pool}\/(\S+)$/){ | |
361 | $parent = $1; | |
362 | } | |
363 | ||
1ccae449 DM |
364 | $list->{$pool}->{$name} = { |
365 | name => $name, | |
7730694e DM |
366 | size => $zvol->{size}, |
367 | parent => $parent, | |
1ccae449 DM |
368 | format => $zvol->{format}, |
369 | vmid => $zvol->{owner}, | |
7730694e DM |
370 | }; |
371 | } | |
372 | ||
373 | return $list; | |
374 | } | |
375 | ||
376 | sub zfs_find_free_diskname { | |
55525ad2 | 377 | my ($class, $storeid, $scfg, $vmid, $format) = @_; |
7730694e DM |
378 | |
379 | my $name = undef; | |
380 | my $volumes = $class->zfs_list_zvol($scfg); | |
381 | ||
382 | my $disk_ids = {}; | |
383 | my $dat = $volumes->{$scfg->{pool}}; | |
384 | ||
385 | foreach my $image (keys %$dat) { | |
386 | my $volname = $dat->{$image}->{name}; | |
55525ad2 | 387 | if ($volname =~ m/(vm|base|subvol)-$vmid-disk-(\d+)/){ |
7730694e DM |
388 | $disk_ids->{$2} = 1; |
389 | } | |
390 | } | |
391 | ||
392 | for (my $i = 1; $i < 100; $i++) { | |
393 | if (!$disk_ids->{$i}) { | |
55525ad2 | 394 | return $format eq 'subvol' ? "subvol-$vmid-disk-$i" : "vm-$vmid-disk-$i"; |
7730694e DM |
395 | } |
396 | } | |
397 | ||
398 | die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"; | |
399 | } | |
400 | ||
2fc59177 DM |
401 | sub zfs_get_latest_snapshot { |
402 | my ($class, $scfg, $volname) = @_; | |
403 | ||
404 | # abort rollback if snapshot is not the latest | |
405 | my @params = ('-t', 'snapshot', '-o', 'name', '-s', 'creation'); | |
406 | my $text = zfs_request($class, $scfg, undef, 'list', @params); | |
407 | my @snapshots = split(/\n/, $text); | |
408 | ||
409 | my $recentsnap; | |
410 | foreach (@snapshots) { | |
411 | if (/$scfg->{pool}\/$volname/) { | |
412 | s/^.*@//; | |
413 | $recentsnap = $_; | |
414 | } | |
415 | } | |
416 | ||
417 | return $recentsnap; | |
418 | } | |
419 | ||
b5e5f7e3 DM |
420 | sub status { |
421 | my ($class, $storeid, $scfg, $cache) = @_; | |
422 | ||
423 | my $total = 0; | |
424 | my $free = 0; | |
425 | my $used = 0; | |
426 | my $active = 0; | |
427 | ||
428 | eval { | |
429 | ($free, $used) = $class->zfs_get_pool_stats($scfg); | |
430 | $active = 1; | |
431 | $total = $free + $used; | |
432 | }; | |
433 | warn $@ if $@; | |
434 | ||
435 | return ($total, $free, $used, $active); | |
436 | } | |
437 | ||
438 | sub volume_size_info { | |
439 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
440 | ||
79f2b938 DM |
441 | my (undef, undef, undef, undef, undef, undef, $format) = |
442 | $class->parse_volname($volname); | |
443 | ||
444 | my $attr = $format eq 'subvol' ? 'refquota' : 'volsize'; | |
445 | my $text = $class->zfs_request($scfg, undef, 'get', '-Hp', $attr, "$scfg->{pool}/$volname"); | |
446 | ||
447 | if ($text =~ /\s$attr\s(\d+)\s/) { | |
448 | return $1; | |
449 | } | |
450 | ||
451 | die "Could not get zfs volume size\n"; | |
b5e5f7e3 DM |
452 | } |
453 | ||
454 | sub volume_snapshot { | |
f5640e7d | 455 | my ($class, $scfg, $storeid, $volname, $snap) = @_; |
b5e5f7e3 DM |
456 | |
457 | $class->zfs_request($scfg, undef, 'snapshot', "$scfg->{pool}/$volname\@$snap"); | |
458 | } | |
459 | ||
460 | sub volume_snapshot_delete { | |
461 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
462 | ||
399581a2 | 463 | $class->deactivate_volume($storeid, $scfg, $volname, $snap, {}); |
b5e5f7e3 DM |
464 | $class->zfs_request($scfg, undef, 'destroy', "$scfg->{pool}/$volname\@$snap"); |
465 | } | |
466 | ||
2b40ffae WL |
467 | sub volume_snapshot_rollback { |
468 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
469 | ||
1597f1f9 WL |
470 | zfs_request($class, $scfg, undef, 'rollback', "$scfg->{pool}/$volname\@$snap"); |
471 | } | |
472 | ||
473 | sub volume_rollback_is_possible { | |
474 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
475 | ||
2fc59177 | 476 | my $recentsnap = $class->zfs_get_latest_snapshot($scfg, $volname); |
2b40ffae | 477 | if ($snap ne $recentsnap) { |
1597f1f9 | 478 | die "can't rollback, more recent snapshots exist\n"; |
2b40ffae WL |
479 | } |
480 | ||
1597f1f9 | 481 | return 1; |
2b40ffae WL |
482 | } |
483 | ||
0a3d992f DM |
484 | sub activate_storage { |
485 | my ($class, $storeid, $scfg, $cache) = @_; | |
86d47239 WL |
486 | |
487 | my @param = ('-o', 'name', '-H'); | |
488 | ||
489 | my $text = zfs_request($class, $scfg, undef, 'zpool_list', @param); | |
93124ef4 DM |
490 | |
491 | # Note: $scfg->{pool} can include dataset <pool>/<dataset> | |
492 | my $pool = $scfg->{pool}; | |
493 | $pool =~ s!/.*$!!; | |
494 | ||
495 | if ($text !~ $pool) { | |
86d47239 WL |
496 | run_command("zpool import -d /dev/disk/by-id/ -a"); |
497 | } | |
0a3d992f DM |
498 | return 1; |
499 | } | |
500 | ||
501 | sub deactivate_storage { | |
502 | my ($class, $storeid, $scfg, $cache) = @_; | |
503 | return 1; | |
504 | } | |
505 | ||
d4c63dc1 | 506 | sub activate_volume { |
02e797b8 | 507 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
d4c63dc1 WL |
508 | return 1; |
509 | } | |
510 | ||
511 | sub deactivate_volume { | |
02e797b8 | 512 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
d4c63dc1 WL |
513 | return 1; |
514 | } | |
5bb8e010 | 515 | |
d3a282e8 WL |
516 | sub clone_image { |
517 | my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_; | |
518 | ||
519 | $snap ||= '__base__'; | |
520 | ||
55525ad2 | 521 | my ($vtype, $basename, $basevmid, undef, undef, $isBase, $format) = |
d3a282e8 WL |
522 | $class->parse_volname($volname); |
523 | ||
524 | die "clone_image only works on base images\n" if !$isBase; | |
525 | ||
55525ad2 | 526 | my $name = $class->zfs_find_free_diskname($storeid, $scfg, $vmid, $format); |
d3a282e8 | 527 | |
d3a282e8 WL |
528 | $class->zfs_request($scfg, undef, 'clone', "$scfg->{pool}/$basename\@$snap", "$scfg->{pool}/$name"); |
529 | ||
530 | return $name; | |
531 | } | |
532 | ||
533 | sub create_base { | |
534 | my ($class, $storeid, $scfg, $volname) = @_; | |
535 | ||
536 | my $snap = '__base__'; | |
537 | ||
538 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
539 | $class->parse_volname($volname); | |
540 | ||
541 | die "create_base not possible with base image\n" if $isBase; | |
542 | ||
543 | my $newname = $name; | |
544 | $newname =~ s/^vm-/base-/; | |
545 | ||
546 | my $newvolname = $basename ? "$basename/$newname" : "$newname"; | |
547 | ||
548 | $class->zfs_request($scfg, undef, 'rename', "$scfg->{pool}/$name", "$scfg->{pool}/$newname"); | |
549 | ||
550 | my $running = undef; #fixme : is create_base always offline ? | |
551 | ||
552 | $class->volume_snapshot($scfg, $storeid, $newname, $snap, $running); | |
553 | ||
554 | return $newvolname; | |
555 | } | |
556 | ||
a4034b9f WL |
557 | sub volume_resize { |
558 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
559 | ||
79f2b938 DM |
560 | my $new_size = int($size/1024); |
561 | ||
562 | my (undef, undef, undef, undef, undef, undef, $format) = | |
563 | $class->parse_volname($volname); | |
564 | ||
565 | my $attr = $format eq 'subvol' ? 'refquota' : 'volsize'; | |
a4034b9f | 566 | |
79f2b938 | 567 | $class->zfs_request($scfg, undef, 'set', "$attr=${new_size}k", "$scfg->{pool}/$volname"); |
a4034b9f WL |
568 | |
569 | return $new_size; | |
570 | } | |
571 | ||
2b40ffae WL |
572 | sub volume_has_feature { |
573 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
574 | ||
575 | my $features = { | |
576 | snapshot => { current => 1, snap => 1}, | |
577 | clone => { base => 1}, | |
578 | template => { current => 1}, | |
579 | copy => { base => 1, current => 1}, | |
580 | }; | |
581 | ||
582 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
583 | $class->parse_volname($volname); | |
584 | ||
585 | my $key = undef; | |
586 | ||
587 | if ($snapname) { | |
588 | $key = 'snap'; | |
589 | } else { | |
590 | $key = $isBase ? 'base' : 'current'; | |
591 | } | |
592 | ||
593 | return 1 if $features->{$feature}->{$key}; | |
594 | ||
595 | return undef; | |
596 | } | |
597 | ||
5bb8e010 | 598 | 1; |