Resize to nums without sign prefix makes false output:
btrfs fi resize 1:150g /srv/extra
Resize device id 1 (/dev/sdb1) from 298.09GiB to 0.00B
The resize operation would take effect though.
Fix it by handling the case if mod is 0 in check_resize_args().
Issue: #307
Reported-by: Chris Murphy <li...@colorremedies.com>
Signed-off-by: Su Yue <l...@damenly.su>
---
cmds/filesystem.c | 10 ++++++++++
1 file changed, 10 insertions(+)
---
Changelog:
v2:
Calculate u64 diff using max() and min().
Calculate mod by comparing new and old size.
diff --git a/cmds/filesystem.c b/cmds/filesystem.c
index 9e3cce687d6e..54d46470c53f 100644
--- a/cmds/filesystem.c
+++ b/cmds/filesystem.c
@@ -1158,6 +1158,16 @@ static int check_resize_args(const char *amount, const
char *path) {
}
old_size = di_args[dev_idx].total_bytes;
+ /* For target sizes without '+'/'-' sign prefix(e.g. 1:150g) */
+ if (mod == 0) {
+ new_size = diff;
+ diff = max(old_size, new_size) - min(old_size,
new_size);
+ if (new_size > old_size)
+ mod = 1;
+ else if (new_size < old_size)
+ mod = -1;
+ }
+
if (mod < 0) {
if (diff > old_size) {
error("current size is %s which is smaller than
%s",
--
2.30.1
