19 files changed, 243 insertions, 123 deletions

diff --git a/fs/block_dev.c b/fs/block_dev.c
index aea605c98ba6..aae187a7f94a 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -551,6 +551,7 @@ struct block_device *bdgrab(struct block_device *bdev)
         ihold(bdev->bd_inode);
         return bdev;
 }
+EXPORT_SYMBOL(bdgrab);
 
 long nr_blockdev_pages(void)
 {
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 451fad96ecd1..ef96381569a4 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -317,6 +317,7 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
         unsigned long src_ptr;
         unsigned long dst_ptr;
         int overwrite_root = 0;
+        bool inode_item = key->type == BTRFS_INODE_ITEM_KEY;
 
         if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID)
                 overwrite_root = 1;
@@ -326,6 +327,9 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
 
         /* look for the key in the destination tree */
         ret = btrfs_search_slot(NULL, root, key, path, 0, 0);
+        if (ret < 0)
+                return ret;
+
         if (ret == 0) {
                 char *src_copy;
                 char *dst_copy;
@@ -367,6 +371,30 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
                         return 0;
                 }
 
+                /*
+                 * We need to load the old nbytes into the inode so when we
+                 * replay the extents we've logged we get the right nbytes.
+                 */
+                if (inode_item) {
+                        struct btrfs_inode_item *item;
+                        u64 nbytes;
+
+                        item = btrfs_item_ptr(path->nodes[0], path->slots[0],
+                                              struct btrfs_inode_item);
+                        nbytes = btrfs_inode_nbytes(path->nodes[0], item);
+                        item = btrfs_item_ptr(eb, slot,
+                                              struct btrfs_inode_item);
+                        btrfs_set_inode_nbytes(eb, item, nbytes);
+                }
+        } else if (inode_item) {
+                struct btrfs_inode_item *item;
+
+                /*
+                 * New inode, set nbytes to 0 so that the nbytes comes out
+                 * properly when we replay the extents.
+                 */
+                item = btrfs_item_ptr(eb, slot, struct btrfs_inode_item);
+                btrfs_set_inode_nbytes(eb, item, 0);
         }
 insert:
         btrfs_release_path(path);
@@ -486,7 +514,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
         int found_type;
         u64 extent_end;
         u64 start = key->offset;
-        u64 saved_nbytes;
+        u64 nbytes = 0;
         struct btrfs_file_extent_item *item;
         struct inode *inode = NULL;
         unsigned long size;
@@ -496,10 +524,19 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
         found_type = btrfs_file_extent_type(eb, item);
 
         if (found_type == BTRFS_FILE_EXTENT_REG ||
-            found_type == BTRFS_FILE_EXTENT_PREALLOC)
-                extent_end = start + btrfs_file_extent_num_bytes(eb, item);
-        else if (found_type == BTRFS_FILE_EXTENT_INLINE) {
+            found_type == BTRFS_FILE_EXTENT_PREALLOC) {
+                nbytes = btrfs_file_extent_num_bytes(eb, item);
+                extent_end = start + nbytes;
+
+                /*
+                 * We don't add to the inodes nbytes if we are prealloc or a
+                 * hole.
+                 */
+                if (btrfs_file_extent_disk_bytenr(eb, item) == 0)
+                        nbytes = 0;
+        } else if (found_type == BTRFS_FILE_EXTENT_INLINE) {
                 size = btrfs_file_extent_inline_len(eb, item);
+                nbytes = btrfs_file_extent_ram_bytes(eb, item);
                 extent_end = ALIGN(start + size, root->sectorsize);
         } else {
                 ret = 0;
@@ -548,7 +585,6 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
         }
         btrfs_release_path(path);
 
-        saved_nbytes = inode_get_bytes(inode);
         /* drop any overlapping extents */
         ret = btrfs_drop_extents(trans, root, inode, start, extent_end, 1);
         BUG_ON(ret);
@@ -635,7 +671,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
                 BUG_ON(ret);
         }
 
-        inode_set_bytes(inode, saved_nbytes);
+        inode_add_bytes(inode, nbytes);
         ret = btrfs_update_inode(trans, root, inode);
 out:
         if (inode)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 991c63c6bdd0..21b3a291c327 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1575,14 +1575,24 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
                         }
                         break;
                 case Opt_blank_pass:
-                        vol->password = NULL;
-                        break;
-                case Opt_pass:
                         /* passwords have to be handled differently
                          * to allow the character used for deliminator
                          * to be passed within them
                          */
 
+                        /*
+                         * Check if this is a case where the  password
+                         * starts with a delimiter
+                         */
+                        tmp_end = strchr(data, '=');
+                        tmp_end++;
+                        if (!(tmp_end < end && tmp_end[1] == delim)) {
+                                /* No it is not. Set the password to NULL */
+                                vol->password = NULL;
+                                break;
+                        }
+                        /* Yes it is. Drop down to Opt_pass below.*/
+                case Opt_pass:
                         /* Obtain the value string */
                         value = strchr(data, '=');
                         value++;
diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
index 412e6eda25f8..e4141f257495 100644
--- a/fs/ecryptfs/miscdev.c
+++ b/fs/ecryptfs/miscdev.c
@@ -80,13 +80,6 @@ ecryptfs_miscdev_open(struct inode *inode, struct file *file)
         int rc;
 
         mutex_lock(&ecryptfs_daemon_hash_mux);
-        rc = try_module_get(THIS_MODULE);
-        if (rc == 0) {
-                rc = -EIO;
-                printk(KERN_ERR "%s: Error attempting to increment module use "