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@xxxxxxxxx>
---
super-intel.c | 24 ++++++++++++++++++++++--
1 files changed, 22 insertions(+), 2 deletions(-)
diff --git a/super-intel.c b/super-intel.c
index 7161fc5..d9c293c 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -9955,7 +9955,7 @@ 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 "
@@ -9970,7 +9970,27 @@ 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
*/
--
1.6.4.2
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
