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| author | Mike Snitzer <snitzer@redhat.com> | 2014-05-20 13:38:33 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-11 11:54:10 -0700 |
| commit | 2936b8269a855dde813ab8488e74f738d905a433 (patch) | |
| tree | 283e9c5352f5c1c50b3a4e33db875641c023b5e3 /Documentation | |
| parent | f435c42d8c7e2b61805615380b0f8710b52620ae (diff) | |
| download | lwn-2936b8269a855dde813ab8488e74f738d905a433.tar.gz lwn-2936b8269a855dde813ab8488e74f738d905a433.zip | |
dm thin: add 'no_space_timeout' dm-thin-pool module param
commit 80c578930ce77ba8bcfb226a184b482020bdda7b upstream.
Commit 85ad643b ("dm thin: add timeout to stop out-of-data-space mode
holding IO forever") introduced a fixed 60 second timeout. Users may
want to either disable or modify this timeout.
Allow the out-of-data-space timeout to be configured using the
'no_space_timeout' dm-thin-pool module param. Setting it to 0 will
disable the timeout, resulting in IO being queued until more data space
is added to the thin-pool.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/device-mapper/thin-provisioning.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/device-mapper/thin-provisioning.txt b/Documentation/device-mapper/thin-provisioning.txt index 05a27e9442bd..2f5173500bd9 100644 --- a/Documentation/device-mapper/thin-provisioning.txt +++ b/Documentation/device-mapper/thin-provisioning.txt @@ -309,7 +309,10 @@ ii) Status error_if_no_space|queue_if_no_space If the pool runs out of data or metadata space, the pool will either queue or error the IO destined to the data device. The - default is to queue the IO until more space is added. + default is to queue the IO until more space is added or the + 'no_space_timeout' expires. The 'no_space_timeout' dm-thin-pool + module parameter can be used to change this timeout -- it + defaults to 60 seconds but may be disabled using a value of 0. iii) Messages |