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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2013-12-20 11:17:02 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2014-07-10 15:22:22 +0200 |
| commit | 70df70927b75eb86f12b14167c398b99dc3a56e4 (patch) | |
| tree | 81225e07ec255438893b727d99937ffa16cdc732 /drivers/block/drbd/drbd_bitmap.c | |
| parent | drbd: refactor use of first_peer_device() (diff) | |
| download | linux-70df70927b75eb86f12b14167c398b99dc3a56e4.tar.xz linux-70df70927b75eb86f12b14167c398b99dc3a56e4.zip | |
drbd: allow write-ordering policy to be bumped up again
Previously, once you disabled flushes as a means of enforcing
write-ordering, you'd need to detach/re-attach to enable them again.
Allow drbdsetup disk-options to re-enable previously disabled
write-ordering policy options at runtime.
While at it fix RCU in drbd_bump_write_ordering()
max_allowed_wo() uses rcu_dereference, therefore it must
be called within rcu_read_lock()/rcu_read_unlock()
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_bitmap.c')
0 files changed, 0 insertions, 0 deletions