Merge branch 'btrfs-3.0' into for-linus

2 files changed, 12 insertions, 7 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 4d14de6d121b..377e9bb0974f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4125,7 +4125,8 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
 
         /* special case for "." */
         if (filp->f_pos == 0) {
-                over = filldir(dirent, ".", 1, 1, btrfs_ino(inode), DT_DIR);
+                over = filldir(dirent, ".", 1,
+                               filp->f_pos, btrfs_ino(inode), DT_DIR);
                 if (over)
                         return 0;
                 filp->f_pos = 1;
@@ -4134,7 +4135,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
         if (filp->f_pos == 1) {
                 u64 pino = parent_ino(filp->f_path.dentry);
                 over = filldir(dirent, "..", 2,
-                               2, pino, DT_DIR);
+                               filp->f_pos, pino, DT_DIR);
                 if (over)
                         return 0;
                 filp->f_pos = 2;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 3351b1b24574..d11fd28efa6a 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2177,6 +2177,11 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
         if (!(src_file->f_mode & FMODE_READ))
                 goto out_fput;
 
+        /* don't make the dst file partly checksummed */
+        if ((BTRFS_I(src)->flags & BTRFS_INODE_NODATASUM) !=
+            (BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM))
+                goto out_fput;
+
         ret = -EISDIR;
         if (S_ISDIR(src->i_mode) || S_ISDIR(inode->i_mode))
                 goto out_fput;
@@ -2226,6 +2231,10 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
                         goto out_unlock;
         }
 
+        /* truncate page cache pages from target inode range */
+        truncate_inode_pages_range(&inode->i_data, destoff,
+                                   PAGE_CACHE_ALIGN(destoff + len) - 1);
+
         /* do any pending delalloc/csum calc on src, one way or
            another, and lock file content */
         while (1) {
@@ -2242,10 +2251,6 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
                 btrfs_wait_ordered_range(src, off, len);
         }
 
-        /* truncate page cache pages from target inode range */
-        truncate_inode_pages_range(&inode->i_data, off,
-                                   ALIGN(off + len, PAGE_CACHE_SIZE) - 1);
-
         /* clone data */
         key.objectid = btrfs_ino(src);
         key.type = BTRFS_EXTENT_DATA_KEY;
@@ -2442,7 +2447,6 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
                         if (endoff > inode->i_size)
                                 btrfs_i_size_write(inode, endoff);
 
-                        BTRFS_I(inode)->flags = BTRFS_I(src)->flags;
                         ret = btrfs_update_inode(trans, root, inode);
                         BUG_ON(ret);
                         btrfs_end_transaction(trans, root);