diff options
| author | Lars Ellenberg | 2011-07-05 20:59:26 +0200 |
|---|---|---|
| committer | Philipp Reisner | 2012-11-08 16:57:51 +0100 |
| commit | d5d7ebd42250620a6da2a8f6943c024391433488 (patch) | |
| tree | 1025faf28644b437a845f21606a1c2db83b54a3c /drivers/block/drbd/drbd_state.c | |
| parent | drbd: detach from frozen backing device (diff) | |
| download | kernel-qcow2-linux-d5d7ebd42250620a6da2a8f6943c024391433488.tar.gz kernel-qcow2-linux-d5d7ebd42250620a6da2a8f6943c024391433488.tar.xz kernel-qcow2-linux-d5d7ebd42250620a6da2a8f6943c024391433488.zip | |
drbd: on attach, enforce clean meta data
Detection of unclean shutdown has moved into user space.
The kernel code will, whenever it updates the meta data, mark it as
"unclean", and will refuse to attach to such unclean meta data.
"drbdadm up" now schedules "drbdmeta apply-al", which will apply
the activity log to the bitmap, and/or reinitialize it, if necessary,
as well as set a "clean" indicator flag.
This moves a bit code out of kernel space.
As a side effect, it also prevents some 8.3 module from accidentally
ignoring the 8.4 style activity log, if someone should downgrade,
whether on purpose, or accidentally because he changed kernel versions
without providing an 8.4 for the new kernel, and the new kernel comes
with in-tree 8.3.
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_state.c')
| -rw-r--r-- | drivers/block/drbd/drbd_state.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c index f51cefdbeff3..c4d0d96d7906 100644 --- a/drivers/block/drbd/drbd_state.c +++ b/drivers/block/drbd/drbd_state.c @@ -1017,6 +1017,7 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns, MDF_CONNECTED_IND|MDF_WAS_UP_TO_DATE| MDF_PEER_OUT_DATED|MDF_CRASHED_PRIMARY); + mdf &= ~MDF_AL_CLEAN; if (test_bit(CRASHED_PRIMARY, &mdev->flags)) mdf |= MDF_CRASHED_PRIMARY; if (mdev->state.role == R_PRIMARY || |