diff options
| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2010-12-05 14:11:14 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2011-03-10 11:35:20 +0100 |
| commit | 8a3c104438be4986a77f332009b695fcac48f620 (patch) | |
| tree | 5f659c3125cb4dd901bfb15532c3ac051f94c8cc /drivers/tty | |
| parent | 09b9e7979378fe070784de20e50bb1d42aa643ab (diff) | |
drbd: fix regression, we need to close drbd epochs during normal operation
commit e2041475e6ddb081734d161f6421977323f5a9b9
drbd: Starting with protocol 96 we can allow app-IO while receiving the bitmap
Contained a bad chunk that tried to optimize away drbd barriers during
bitmap exchange, but accidentally dropped them for normal mode as well.
Impact: depending on activity log size and access pattern, activity log
extents may not be recycled in time, causeing IO to block indefinetely.
Fix: skip drbd barriers only if there is no connection to send them on,
or the request being completed has not been on the network at all.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/tty')
0 files changed, 0 insertions, 0 deletions