Fix volume WR_INDIRECT log replay #6620
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The portion of the zvol_replay_write() handler responsible for replaying indirect log records for some reason never existed. As a result indirect log records were not being correctly replayed. This went largely unnoticed since the majority of zvol log records were of the type WR_COPIED or WR_NEED_COPY prior to OpenZFS 7578. This patch updates zvol_replay_write() to correctly handle these log records and adds a new test case which verifies volume replay to prevent any regression. The existing test case which verified replay on filesystem was renamed slog_replay_fs.ksh for clarity. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: loli10K <ezomori.nozomu@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#6603
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@tonyhutter this patch has been pulled in to master and is something we'll definitely need in the release branch. |
tonyhutter
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Sep 13, 2017
Fabian-Gruenbichler
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Sep 29, 2017
The portion of the zvol_replay_write() handler responsible for replaying indirect log records for some reason never existed. As a result indirect log records were not being correctly replayed. This went largely unnoticed since the majority of zvol log records were of the type WR_COPIED or WR_NEED_COPY prior to OpenZFS 7578. This patch updates zvol_replay_write() to correctly handle these log records and adds a new test case which verifies volume replay to prevent any regression. The existing test case which verified replay on filesystem was renamed slog_replay_fs.ksh for clarity. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: loli10K <ezomori.nozomu@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#6603
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Description
The portion of the zvol_replay_write() handler responsible for
replaying indirect log records for some reason never existed.
As a result indirect log records were not being correctly replayed.
This went largely unnoticed since the majority of zvol log records
were of the type WR_COPIED or WR_NEED_COPY prior to OpenZFS 7578.
This patch updates zvol_replay_write() to correctly handle these
log records and adds a new test case which verifies volume replay
to prevent any regression. The existing test case which verified
replay on filesystem was renamed slog_replay_fs.ksh for clarity.
Reviewed-by: George Melikov mail@gmelikov.ru
Reviewed-by: loli10K ezomori.nozomu@gmail.com
Signed-off-by: Brian Behlendorf behlendorf1@llnl.gov
Closes #6603
Motivation and Context
Ported from master for the zfs-0.7-release branch.