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e2354ea344
In order to support striped raid5/6/10 LV reshaping (change of LV type, stripesize or number of legs), this patch introduces infrastructure prerequisites to be used by raid_manip.c extensions in followup patches. This base is needed for allocation of out-of-place reshape space required by the MD raid personalities to avoid writing over data in-place when reading off the current RAID layout or number of legs and writing out the new layout or to a different number of legs (i.e. restripe) Changes: - add members reshape_len to 'struct lv_segment' to store out-of-place reshape length per component rimage - add member data_copies to struct lv_segment to support more than 2 raid10 data copies - make alloc_lv_segment() aware of both reshape_len and data_copies - adjust all alloc_lv_segment() callers to the new API - add functions to retrieve the current data offset (needed for out-of-place reshaping space allocation) and the devices count from the kernel - make libdm deptree code aware of reshape_len - add LV flags for disk add/remove reshaping - support import/export of the new 'struct lv_segment' members - enhance lv_extend/_lv_reduce to cope with reshape_len - add seg_is_*/segtype_is_* macros related to reshaping - add target version check for reshaping - grow rebuilds/writemostly bitmaps to 246 bit to support kernel maximal - enhance libdm deptree code to support data_offset (out-of-place reshaping) and delta_disk (legs add/remove reshaping) target arguments Related: rhbz834579 Related: rhbz1191935 Related: rhbz1191978 |
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| .. | ||
| datastruct | ||
| ioctl | ||
| misc | ||
| mm | ||
| regex | ||
| .exported_symbols | ||
| .exported_symbols.Base | ||
| .exported_symbols.DM_1_02_97 | ||
| .exported_symbols.DM_1_02_98 | ||
| .exported_symbols.DM_1_02_99 | ||
| .exported_symbols.DM_1_02_100 | ||
| .exported_symbols.DM_1_02_101 | ||
| .exported_symbols.DM_1_02_103 | ||
| .exported_symbols.DM_1_02_104 | ||
| .exported_symbols.DM_1_02_105 | ||
| .exported_symbols.DM_1_02_106 | ||
| .exported_symbols.DM_1_02_107 | ||
| .exported_symbols.DM_1_02_110 | ||
| .exported_symbols.DM_1_02_113 | ||
| .exported_symbols.DM_1_02_124 | ||
| .exported_symbols.DM_1_02_128 | ||
| .exported_symbols.DM_1_02_129 | ||
| .exported_symbols.DM_1_02_131 | ||
| .exported_symbols.DM_1_02_133 | ||
| .exported_symbols.DM_1_02_135 | ||
| .exported_symbols.DM_1_02_138 | ||
| libdevmapper.h | ||
| libdevmapper.pc.in | ||
| libdm-common.c | ||
| libdm-common.h | ||
| libdm-config.c | ||
| libdm-deptree.c | ||
| libdm-file.c | ||
| libdm-report.c | ||
| libdm-stats.c | ||
| libdm-string.c | ||
| libdm-targets.c | ||
| libdm-timestamp.c | ||
| Makefile.in | ||