On 05/13/2014 06:48 PM, Stefan Behrens wrote:
On Tue, 13 May 2014 17:05:05 +0800, Wang Shilong wrote:
Btrfs device id start from 1, not 0.
Signed-off-by: Wang Shilong <wangsl.fnst@xxxxxxxxxxxxxx>
---
utils.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/utils.c b/utils.c
index 560c557..d480353 100644
--- a/utils.c
+++ b/utils.c
@@ -1765,7 +1765,7 @@ int get_fs_info(char *path, struct btrfs_ioctl_fs_info_args *fi_args,
goto out;
}
You've not seen the two assignments in get_fs_info() above the lines
that you change:
if (is_block_device(path)) {
...
fi_args->max_id = devid;
i = devid;
Oops, i did not see this one, but this condition may not meet, so
i guess the right fix is to set i=1 when declaration, something like:
int i = 1;
- for (; i <= fi_args->max_id; ++i) {
+ for (i = 1; i <= fi_args->max_id; ++i) {
BUG_ON(ndevs >= fi_args->num_devices);
ret = get_device_info(fd, i, &di_args[ndevs]);
if (ret == -ENODEV)
--
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