Current code of print_replace_status() mixed stdout and stderr in
error case, output a error string to stderr without "\n", then
output "\n" to stdout to end the line.
This patch fixed above problem by using unified error handle way for 3
type of errors in print_replace_status().
Also include some small logic cleanup.
Signed-off-by: Zhao Lei <zhao...@cn.fujitsu.com>
---
cmds-replace.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/cmds-replace.c b/cmds-replace.c
index ce91787..134addf 100644
--- a/cmds-replace.c
+++ b/cmds-replace.c
@@ -405,7 +405,6 @@ static int print_replace_status(int fd, const char *path,
int once)
return ret;
}
- status = &args.status;
if (args.result != BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR) {
fprintf(stderr, "ERROR: ioctl(DEV_REPLACE_STATUS) on
\"%s\" returns error: %s\n",
path,
@@ -413,6 +412,8 @@ static int print_replace_status(int fd, const char *path,
int once)
return -1;
}
+ status = &args.status;
+
skip_stats = 0;
num_chars = 0;
switch (status->replace_state) {
@@ -457,12 +458,9 @@ static int print_replace_status(int fd, const char *path,
int once)
printf("Never started");
break;
default:
- prevent_loop = 1;
- fprintf(stderr,
- "Unknown btrfs dev replace status:%llu",
- status->replace_state);
- ret = -EINVAL;
- break;
+ fprintf(stderr, "ERROR: ioctl(DEV_REPLACE_STATUS) on
\"%s\" got unknown status: %llu\n",
+ path, status->replace_state);
+ return -EINVAL;
}
if (!skip_stats)
@@ -471,9 +469,9 @@ static int print_replace_status(int fd, const char *path,
int once)
(unsigned long long)status->num_write_errors,
(unsigned long long)
status->num_uncorrectable_read_errors);
- if (once || prevent_loop || ret) {
+ if (once || prevent_loop) {
printf("\n");
- return ret;
+ break;
}
fflush(stdout);
--
1.8.5.1
--
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