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| author | Mikulas Patocka <mpatocka@redhat.com> | 2023-04-18 22:56:41 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@kernel.org> | 2023-04-19 18:13:43 +0300 |
| commit | aa7d7bc99fed71664e9a241b32294ee15a88d938 (patch) | |
| tree | 730a8a5b87dff835dca812bd95ffbc7d575e9965 /Documentation/admin-guide | |
| parent | e3675dc1e7ea2e4e5a6527fa7068e9fcbc2475cc (diff) | |
| download | linux-aa7d7bc99fed71664e9a241b32294ee15a88d938.tar.xz | |
dm flakey: add an "error_reads" option
dm-flakey returns error on reads if no other argument is specified.
This commit simplifies associated logic while formalizing an
"error_reads" argument and an ERROR_READS flag.
If no argument is specified, set ERROR_READS flag so that it behaves
just like before this commit.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/device-mapper/dm-flakey.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/admin-guide/device-mapper/dm-flakey.rst b/Documentation/admin-guide/device-mapper/dm-flakey.rst index 86138735879d..f7104c01b0f7 100644 --- a/Documentation/admin-guide/device-mapper/dm-flakey.rst +++ b/Documentation/admin-guide/device-mapper/dm-flakey.rst @@ -39,6 +39,10 @@ Optional feature parameters: If no feature parameters are present, during the periods of unreliability, all I/O returns errors. + error_reads: + All read I/O is failed with an error signalled. + Write I/O is handled correctly. + drop_writes: All write I/O is silently ignored. Read I/O is handled correctly. |