diff options
| author | Adam Kwolek <adam.kwolek@intel.com> | 2012-04-13 16:52:05 +0200 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-04-17 12:33:38 +1000 |
| commit | b130333f39734eed08d38d6c36025fa4d618bc52 (patch) | |
| tree | c36e359641e168e4fc80cfd2869eebf6a291b350 | |
| parent | 13bcac9059b6aef7bf9e828fbdea285cf6adcbd2 (diff) | |
| download | mdadm-b130333f39734eed08d38d6c36025fa4d618bc52.tar.gz | |
imsm: Support setting max size for size change operation
Add support for setting max size for size change operation using
imsm_get_free_size() function for computing maximum available space.
Signed-off-by: Adam Kwolek <adam.kwolek@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
| -rw-r--r-- | super-intel.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/super-intel.c b/super-intel.c index 7cc0ed5..1f47234 100644 --- a/super-intel.c +++ b/super-intel.c @@ -9953,7 +9953,7 @@ enum imsm_reshape_type imsm_analyze_change(struct supertype *st, */ current_size = info.custom_array_size / 2 / data_disks; - if ((current_size != geo->size) && (geo->size > 0)) { + if ((current_size != geo->size) && (geo->size >= 0)) { if (change != -1) { fprintf(stderr, Name " Error. Size change should be the only " @@ -9968,7 +9968,27 @@ enum imsm_reshape_type imsm_analyze_change(struct supertype *st, super->current_vol, st->devnum); goto analyse_change_exit; } - geo->size *= 2; + if (geo->size == 0) { + /* requested size change to the maximum available size + */ + unsigned long long freesize; + int rv; + + rv = imsm_get_free_size(st, dev->vol.map->num_members, + 0, chunk, &freesize); + if (rv == 0) { + fprintf(stderr, Name " Error. Cannot find " + "maximum available space.\n"); + change = -1; + goto analyse_change_exit; + } + geo->size = freesize + current_size; + + /* round to chunk size */ + geo->size &= ~(chunk-1); + } else + geo->size *= 2; + if ((direction == ROLLBACK_METADATA_CHANGES)) { /* accept size for rollback only */ |