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Searched refs:delta_disks (Results 1 – 9 of 9) sorted by relevance

/linux/drivers/md/
H A Ddm-raid.c121 /* Define flags for options with one argument (e.g. 'delta_disks +2') */
142 /* "raid1" does not accept stripe cache, data offset, delta_disks or any raid10 options */
240 int delta_disks; member
340 { CTR_FLAG_DELTA_DISKS, "delta_disks"},
733 mddev->delta_disks = 0; in rs_set_new()
760 rs->delta_disks = 0; in raid_set_alloc()
770 rs->md.delta_disks = 0; in raid_set_alloc()
1390 rs->ti->error = "Only one delta_disks argument pair allowed"; in parse_raid_params()
1399 rs->delta_disks = value; in parse_raid_params()
1645 int delta_disks; in rs_set_dev_and_array_sectors() local
2004 __le32 delta_disks; global() member
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H A Draid0.c675 mddev->delta_disks = -1; in raid0_takeover_raid45()
716 mddev->delta_disks = - mddev->raid_disks / 2; in raid0_takeover_raid10()
717 mddev->raid_disks += mddev->delta_disks; in raid0_takeover_raid10()
760 mddev->delta_disks = 1 - mddev->raid_disks; in raid0_takeover_raid1()
H A Dmd.c1401 mddev->delta_disks = sb->delta_disks; in super_90_validate()
1405 if (mddev->delta_disks < 0) in super_90_validate()
1409 mddev->delta_disks = 0; in super_90_validate()
1543 sb->delta_disks = mddev->delta_disks; in super_90_sync()
1930 mddev->delta_disks = le32_to_cpu(sb->delta_disks); in super_1_validate()
1934 if (mddev->delta_disks < 0 || in super_1_validate()
1935 (mddev->delta_disks in super_1_validate()
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H A Draid10.c3845 disks = mddev->raid_disks - mddev->delta_disks; in setup_geo()
3857 disks = mddev->raid_disks + mddev->delta_disks; in setup_geo()
3934 conf->mirrors = kcalloc(mddev->raid_disks + max(0, -mddev->delta_disks), in setup_conf()
4275 mddev->delta_disks = mddev->raid_disks; in raid10_takeover_raid0()
4320 * - raid_disks (by delta_disks) in raid10_check_reshape()
4353 if (mddev->delta_disks > 0) { in raid10_check_reshape()
4356 kcalloc(mddev->raid_disks + mddev->delta_disks, in raid10_check_reshape()
4472 if (spares < mddev->delta_disks) in raid10_start_reshape()
4503 if (mddev->delta_disks && mddev->bitmap) { in raid10_start_reshape()
4544 if (mddev->delta_disks > in raid10_start_reshape()
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H A Draid5.c7523 conf->previous_raid_disks = mddev->raid_disks - mddev->delta_disks; in setup_conf()
7845 old_disks = mddev->raid_disks - mddev->delta_disks; in raid5_run()
7867 if (mddev->delta_disks == 0) { in raid5_run()
7899 BUG_ON(mddev->delta_disks != 0); in raid5_run()
8370 if (mddev->delta_disks == 0 && in check_reshape()
8376 if (mddev->delta_disks < 0 && mddev->reshape_position == MaxSector) { in check_reshape()
8385 if (mddev->raid_disks + mddev->delta_disks < min) in check_reshape()
8393 mddev->delta_disks > 0) in check_reshape()
8396 + max(0, mddev->delta_disks), in check_reshape()
8402 if (conf->previous_raid_disks + mddev->delta_disks < in check_reshape()
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H A Dmd.h450 int delta_disks, new_level, new_layout; member
H A Draid1.c3382 raid_disks = mddev->raid_disks + mddev->delta_disks; in raid1_reshape()
3432 mddev->delta_disks = 0; in raid1_reshape()
/linux/include/uapi/linux/raid/
H A Dmd_p.h124 * the larger of the old and new numbers. 'delta_disks' will
126 * "raid_disks-delta_disks" is the old. If -ve, raid_disks is the
127 * old value and "raid_disks+delta_disks" is the new (smaller) value.
180 __u32 delta_disks; /* 15 change in number of raid_disks */ member
258 __le32 delta_disks; /* change in number of raid_disks */ member
/linux/Documentation/admin-guide/device-mapper/
H A Ddm-raid.rst172 [delta_disks <N>]
173 The delta_disks option value (-251 < N < +251) triggers