path: root/Documentation/btrfs-device.asciidoc
diff options
authorDavid Sterba <>2016-12-12 18:02:19 +0100
committerDavid Sterba <>2016-12-14 15:06:36 +0100
commitd62902e95b9f8d54c290bcd47f7a573145479d3d (patch)
tree21d880d0c49c36bb3c54da2914d817a8662e090c /Documentation/btrfs-device.asciidoc
parente4fbe791e467d606e5ae303afed257d2506220fa (diff)
btrfs-progs: dev stats: update option name for checking non-zero status
Rename the option to -c|--check and update documentation. Signed-off-by: David Sterba <>
Diffstat (limited to 'Documentation/btrfs-device.asciidoc')
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/btrfs-device.asciidoc b/Documentation/btrfs-device.asciidoc
index 1e3b3a39..58dc9b00 100644
--- a/Documentation/btrfs-device.asciidoc
+++ b/Documentation/btrfs-device.asciidoc
@@ -98,7 +98,7 @@ remain as such. Reloading the kernel module will drop this information. There's
an alternative way of mounting multiple-device filesystem without the need for
prior scanning. See the mount option 'device'.
-*stats* [-zs] <path>|<device>::
+*stats* [options] <path>|<device>::
Read and print the device IO error statistics for all devices of the given
filesystem identified by <path> or for a single <device>. The filesystem must
be mounted. See section *DEVICE STATS* for more information about the reported
@@ -109,8 +109,10 @@ statistics and the meaning.
Print the stats and reset the values to zero afterwards.
-Set bit 6 of the return-code if any error statistics are non-zero.
+Check if the stats are all zeros and return 0 it it is so. Set bit 6 of the
+return code if any of the statistics is no-zero. The error values is 65 if
+reading stats from at least one device failed, otherwise it's 64.
*usage* [options] <path> [<path>...]::
Show detailed information about internal allocations in devices.