Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  fs/bio.c: fix shadows sparse warning
  drbd: The kernel code is now equivalent to out of tree release 8.3.7
  drbd: Allow online resizing of DRBD devices while peer not reachable (needs to be explicitly forced)
  drbd: Don't go into StandAlone mode when authentification failes because of network error
  drivers/block/drbd/drbd_receiver.c: correct NULL test
  cfq-iosched: Respect ioprio_class when preempting
  genhd: overlapping variable definition
  block: removed unused as_io_context
  DM: Fix device mapper topology stacking
  block: bdev_stack_limits wrapper
  block: Fix discard alignment calculation and printing
  block: Correct handling of bottom device misaligment
  drbd: check on CONFIG_LBDAF, not LBD
  drivers/block/drbd: Correct NULL test
  drbd: Silenced an assert that could triggered after changing write ordering method
  drbd: Kconfig fix
  drbd: Fix for a race between IO and a detach operation [Bugz 262]
  drbd: Use drbd_crypto_is_hash() instead of an open coded check

1 files changed, 12 insertions, 7 deletions

diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 4e0726aa53b0..1292e0620663 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -510,7 +510,7 @@ void drbd_resume_io(struct drbd_conf *mdev)
  * Returns 0 on success, negative return values indicate errors.
  * You should call drbd_md_sync() after calling this function.
  */
-enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev) __must_hold(local)
+enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev, int force) __must_hold(local)
 {
         sector_t prev_first_sect, prev_size; /* previous meta location */
         sector_t la_size;
@@ -541,7 +541,7 @@ enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev) __must_ho
         /* TODO: should only be some assert here, not (re)init... */
         drbd_md_set_sector_offsets(mdev, mdev->ldev);
 
-        size = drbd_new_dev_size(mdev, mdev->ldev);
+        size = drbd_new_dev_size(mdev, mdev->ldev, force);
 
         if (drbd_get_capacity(mdev->this_bdev) != size ||
             drbd_bm_capacity(mdev) != size) {
@@ -596,7 +596,7 @@ out:
 }
 
 sector_t
-drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev)
+drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev, int assume_peer_has_space)
 {
         sector_t p_size = mdev->p_size;   /* partner's disk size. */
         sector_t la_size = bdev->md.la_size_sect; /* last agreed size. */
@@ -606,6 +606,11 @@ drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev)
 
         m_size = drbd_get_max_capacity(bdev);
 
+        if (mdev->state.conn < C_CONNECTED && assume_peer_has_space) {
+                dev_warn(DEV, "Resize while not connected was forced by the user!\n");
+                p_size = m_size;
+        }
+
         if (p_size && m_size) {
                 size = min_t(sector_t, p_size, m_size);
         } else {
@@ -965,7 +970,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
 
         /* Prevent shrinking of consistent devices ! */
         if (drbd_md_test_flag(nbc, MDF_CONSISTENT) &&
-           drbd_new_dev_size(mdev, nbc) < nbc->md.la_size_sect) {
+            drbd_new_dev_size(mdev, nbc, 0) < nbc->md.la_size_sect) {
                 dev_warn(DEV, "refusing to truncate a consistent device\n");
                 retcode = ERR_DISK_TO_SMALL;
                 goto force_diskless_dec;
@@ -1052,7 +1057,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
             !drbd_md_test_flag(mdev->ldev, MDF_CONNECTED_IND))
                 set_bit(USE_DEGR_WFC_T, &mdev->flags);
 
-        dd = drbd_determin_dev_size(mdev);
+        dd = drbd_determin_dev_size(mdev, 0);
         if (dd == dev_size_error) {
                 retcode = ERR_NOMEM_BITMAP;
                 goto force_diskless_dec;
@@ -1271,7 +1276,7 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
                         goto fail;
                 }
 
-                if (crypto_tfm_alg_type(crypto_hash_tfm(tfm)) != CRYPTO_ALG_TYPE_SHASH) {
+                if (!drbd_crypto_is_hash(crypto_hash_tfm(tfm))) {
                         retcode = ERR_AUTH_ALG_ND;
                         goto fail;
                 }
@@ -1504,7 +1509,7 @@ static int drbd_nl_resize(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
         }
 
         mdev->ldev->dc.disk_size = (sector_t)rs.resize_size;
-        dd = drbd_determin_dev_size(mdev);
+        dd = drbd_determin_dev_size(mdev, rs.resize_force);
         drbd_md_sync(mdev);
         put_ldev(mdev);
         if (dd == dev_size_error) {