Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: break out of shrink_delalloc earlier
  btrfs: fix not enough reserved space
  btrfs: fix dip leak
  Btrfs: make sure not to return overlapping extents to fiemap
  Btrfs: deal with short returns from copy_from_user
  Btrfs: fix regressions in copy_from_user handling

1 files changed, 4 insertions, 2 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 0efdb65953c5..9007bbd01dbf 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4821,10 +4821,11 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
                 goto fail;
 
         /*
-         * 1 item for inode ref
+         * 2 items for inode and inode ref
          * 2 items for dir items
+         * 1 item for parent inode
          */
-        trans = btrfs_start_transaction(root, 3);
+        trans = btrfs_start_transaction(root, 5);
         if (IS_ERR(trans)) {
                 err = PTR_ERR(trans);
                 goto fail;
@@ -6056,6 +6057,7 @@ static void btrfs_submit_direct(int rw, struct bio *bio, struct inode *inode,
         if (!skip_sum) {
                 dip->csums = kmalloc(sizeof(u32) * bio->bi_vcnt, GFP_NOFS);
                 if (!dip->csums) {
+                        kfree(dip);
                         ret = -ENOMEM;
                         goto free_ordered;
                 }