| commit | 8d1e6dc9e938eb95206adedf51b18a9a9376e771 | |
| author | Matthew Dillon <dillon@dragonflybsd.org> | |
| Tue, 3 Jun 2008 18:47:25 +0000 (3 18:47 +0000) | ||
| committer | Matthew Dillon <dillon@dragonflybsd.org> | |
| Tue, 3 Jun 2008 18:47:25 +0000 (3 18:47 +0000) | ||
| tree | 4ee95d8b5b6f4e9f5e34a85fe3fdc18b83069a5d | treesnapshot (tar.gz zip) |
| parent | a8c4ba91f9021111638e61809c5bca3e22e810cc | commitdiff |
HAMMER 52/Many: Read-only mounts and mount upgrades/downgrades.
* Finish implementing MNT_UPDATE, allowing a HAMMER mount to be upgraded
or downgraded.
* Adjust the recovery code to not flush buffers dirtied by recovery
operations (running the UNDOs) when the mount is read-only. The
buffers will be flushed when the mount is updated to read-write.
* Improve recovery performance by not flushing dirty buffers until the
end (if a read-write mount).
* A crash which occurs during recovery might cause the next recovery to
fail. Delay writing out the recovered volume header until all the other
buffers have been written out to fix the problem.
* Finish implementing MNT_UPDATE, allowing a HAMMER mount to be upgraded
or downgraded.
* Adjust the recovery code to not flush buffers dirtied by recovery
operations (running the UNDOs) when the mount is read-only. The
buffers will be flushed when the mount is updated to read-write.
* Improve recovery performance by not flushing dirty buffers until the
end (if a read-write mount).
* A crash which occurs during recovery might cause the next recovery to
fail. Delay writing out the recovered volume header until all the other
buffers have been written out to fix the problem.