diff options
| author | Philipp Reisner <philipp.reisner@linbit.com> | 2012-02-14 12:12:35 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2012-11-08 16:58:15 +0100 |
| commit | 25b0d6c8c16b2bf6a0430ec9cf137297db4e85e5 (patch) | |
| tree | ffb5c0e7cd3e72732898f0eb77e94b57c84e582b /drivers/block/drbd/drbd_nl.c | |
| parent | b17f33cb0abe61942083444fa6d218d7ca147773 (diff) | |
drbd: Reinstate disabling AL updates with invalidate-remote
Commit d0ef827e (drbd: switch configuration interface from connector to
genetlink) introduced a regression by removing the ability to set all
bits in the out of sync bitmap and to suspend updates to the activity log
of a disconnected device via the invalidate-remote management call.
Credits for reporting the issue are going to Arne Redlich.
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_nl.c')
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index b369dd112df..c5aa08474a3 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -2410,9 +2410,47 @@ out: return 0; } +static int drbd_bmio_set_susp_al(struct drbd_conf *mdev) +{ + int rv; + + rv = drbd_bmio_set_n_write(mdev); + drbd_suspend_al(mdev); + return rv; +} + int drbd_adm_invalidate_peer(struct sk_buff *skb, struct genl_info *info) { - return drbd_adm_simple_request_state(skb, info, NS(conn, C_STARTING_SYNC_S)); + int retcode; /* drbd_ret_code, drbd_state_rv */ + struct drbd_conf *mdev; + + retcode = drbd_adm_prepare(skb, info, DRBD_ADM_NEED_MINOR); + if (!adm_ctx.reply_skb) + return retcode; + if (retcode != NO_ERROR) + goto out; + + mdev = adm_ctx.mdev; + + retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S), CS_ORDERED); + if (retcode < SS_SUCCESS) { + if (retcode == SS_NEED_CONNECTION && mdev->state.role == R_PRIMARY) { + /* The peer will get a resync upon connect anyways. + * Just make that into a full resync. */ + retcode = drbd_request_state(mdev, NS(pdsk, D_INCONSISTENT)); + if (retcode >= SS_SUCCESS) { + if (drbd_bitmap_io(mdev, &drbd_bmio_set_susp_al, + "set_n_write from invalidate_peer", + BM_LOCKED_SET_ALLOWED)) + retcode = ERR_IO_MD_DISK; + } + } else + retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S)); + } + +out: + drbd_adm_finish(info, retcode); + return 0; } int drbd_adm_pause_sync(struct sk_buff *skb, struct genl_info *info) |