@@ -348,7 +348,6 @@ static const char *const cmd_replace_status_usage[] = {
static int cmd_replace_status(int argc, char **argv)
{
int fd;
- int e;
int c;
char *path;
int once = 0;
@@ -370,13 +369,9 @@ static int cmd_replace_status(int argc, char **argv)
usage(cmd_replace_status_usage);
path = argv[optind];
- fd = open_file_or_dir(path, &dirstream);
- e = errno;
- if (fd < 0) {
- fprintf(stderr, "ERROR: can't access \"%s\": %s\n",
- path, strerror(e));
+ fd = btrfs_open_dir(path, &dirstream, 1);
+ if (fd < 0)
return 1;
- }
ret = print_replace_status(fd, path, once);
close_file_or_dir(fd, dirstream);
@@ -541,12 +536,9 @@ static int cmd_replace_cancel(int argc, char **argv)
usage(cmd_replace_cancel_usage);
path = argv[optind];
- fd = open_file_or_dir(path, &dirstream);
- if (fd < 0) {
- fprintf(stderr, "ERROR: can't access \"%s\": %s\n",
- path, strerror(errno));
+ fd = btrfs_open_dir(path, &dirstream, 1);
+ if (fd < 0)
return 1;
- }
args.cmd = BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL;
args.result = BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_RESULT;
We can use btrfs_open_dir() to check whether target dir is in btrfs's mount point before open, instead of checking it in kernel space of ioctl, and return fuzzy error message. Before patch: # ./btrfs replace cancel /mnt/tmp1 ERROR: ioctl(DEV_REPLACE_CANCEL) failed on "/mnt/tmp1": Inappropriate ioctl for device # ./btrfs replace status /mnt/tmp1 ERROR: ioctl(DEV_REPLACE_STATUS) failed on "/mnt/tmp1": Inappropriate ioctl for device After patch: # ./btrfs replace cancel /mnt/tmp1 ERROR: not a btrfs filesystem: /mnt/tmp1 # ./btrfs replace status /mnt/tmp1 ERROR: not a btrfs filesystem: /mnt/tmp1 Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> --- cmds-replace.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-)