diff options
Diffstat (limited to 'cmds-device.c')
| -rw-r--r-- | cmds-device.c | 39 |
1 files changed, 32 insertions, 7 deletions
diff --git a/cmds-device.c b/cmds-device.c index fa0830f2..392e37cb 100644 --- a/cmds-device.c +++ b/cmds-device.c @@ -376,6 +376,7 @@ static const char * const cmd_device_stats_usage[] = { "Show current device IO stats.", "", "-z show current stats and reset values to zero", + "-s return non-zero if any stat counter is not zero", NULL }; @@ -389,14 +390,18 @@ static int cmd_device_stats(int argc, char **argv) int i; int c; int err = 0; + int status = 0; __u64 flags = 0; DIR *dirstream = NULL; - while ((c = getopt(argc, argv, "z")) != -1) { + while ((c = getopt(argc, argv, "zs")) != -1) { switch (c) { case 'z': flags = BTRFS_DEV_STATS_RESET; break; + case 's': + status = 1; + break; case '?': default: usage(cmd_device_stats_usage); @@ -440,7 +445,7 @@ static int cmd_device_stats(int argc, char **argv) if (ioctl(fdmnt, BTRFS_IOC_GET_DEV_STATS, &args) < 0) { error("DEV_STATS ioctl failed on %s: %s", path, strerror(errno)); - err = 1; + err |= 1; } else { char *canonical_path; @@ -457,31 +462,51 @@ static int cmd_device_stats(int argc, char **argv) "devid:%llu", args.devid); } - if (args.nr_items >= BTRFS_DEV_STAT_WRITE_ERRS + 1) + if (args.nr_items >= BTRFS_DEV_STAT_WRITE_ERRS + 1) { printf("[%s].write_io_errs %llu\n", canonical_path, (unsigned long long) args.values[ BTRFS_DEV_STAT_WRITE_ERRS]); - if (args.nr_items >= BTRFS_DEV_STAT_READ_ERRS + 1) + if ((status == 1) && (args.values[BTRFS_DEV_STAT_WRITE_ERRS] > 0)) { + err |= 64; + } + } + if (args.nr_items >= BTRFS_DEV_STAT_READ_ERRS + 1) { printf("[%s].read_io_errs %llu\n", canonical_path, (unsigned long long) args.values[ BTRFS_DEV_STAT_READ_ERRS]); - if (args.nr_items >= BTRFS_DEV_STAT_FLUSH_ERRS + 1) + if ((status == 1) && (args.values[BTRFS_DEV_STAT_READ_ERRS] > 0)) { + err |= 64; + } + } + if (args.nr_items >= BTRFS_DEV_STAT_FLUSH_ERRS + 1) { printf("[%s].flush_io_errs %llu\n", canonical_path, (unsigned long long) args.values[ BTRFS_DEV_STAT_FLUSH_ERRS]); - if (args.nr_items >= BTRFS_DEV_STAT_CORRUPTION_ERRS + 1) + if ((status == 1) && (args.values[BTRFS_DEV_STAT_FLUSH_ERRS] > 0)) { + err |= 64; + } + } + if (args.nr_items >= BTRFS_DEV_STAT_CORRUPTION_ERRS + 1) { printf("[%s].corruption_errs %llu\n", canonical_path, (unsigned long long) args.values[ BTRFS_DEV_STAT_CORRUPTION_ERRS]); - if (args.nr_items >= BTRFS_DEV_STAT_GENERATION_ERRS + 1) + if ((status == 1) && (args.values[BTRFS_DEV_STAT_CORRUPTION_ERRS] > 0)) { + err |= 64; + } + } + if (args.nr_items >= BTRFS_DEV_STAT_GENERATION_ERRS + 1) { printf("[%s].generation_errs %llu\n", canonical_path, (unsigned long long) args.values[ BTRFS_DEV_STAT_GENERATION_ERRS]); + if ((status == 1) && (args.values[BTRFS_DEV_STAT_GENERATION_ERRS] > 0)) { + err |= 64; + } + } free(canonical_path); } |