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btrfs-progs: device stats: Print devid instead of null

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Print e.g. "[devid:4].write_io_errs   6" instead of
"[(null)].write_io_errs   6" when device is missing.

Signed-off-by: Patrik Lundquist <patrik.lundquist@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Patrik Lundquist 2016-04-05 17:27:43 +02:00 committed by David Sterba
parent 972cfbe32f
commit a963abc3d3
1 changed files with 7 additions and 0 deletions
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7
cmds-device.c
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@ -447,6 +447,13 @@ static int cmd_device_stats(int argc, char **argv)
canonical_path = canonicalize_path((char *)path); canonical_path = canonicalize_path((char *)path);
/* No path when device is missing. */
if (!canonical_path) {
canonical_path = malloc(32);
snprintf(canonical_path, 32,
"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", printf("[%s].write_io_errs %llu\n",
canonical_path, canonical_path,