Merge git://git.infradead.org/users/dwmw2/mtd-2.6.38

[mv-sheeva.git] / fs / btrfs / extent-tree.c

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 565e22d77b1b697651076c3bce1d7d69892b1f6a..588ff9849873c5dc6690ae5baebd2a1111de00ac 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1743,8 +1743,7 @@ static int remove_extent_backref(struct btrfs_trans_handle *trans,
 static void btrfs_issue_discard(struct block_device *bdev,
                                u64 start, u64 len)
 {
-       blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL,
-                       BLKDEV_IFL_WAIT | BLKDEV_IFL_BARRIER);
+       blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL, 0);
 }
 
 static int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
@@ -5377,7 +5376,7 @@ again:
                               num_bytes, data, 1);
                goto again;
        }
-       if (ret == -ENOSPC) {
+       if (ret == -ENOSPC && btrfs_test_opt(root, ENOSPC_DEBUG)) {
                struct btrfs_space_info *sinfo;
 
                sinfo = __find_space_info(root->fs_info, data);
@@ -6584,7 +6583,7 @@ static noinline int relocate_data_extent(struct inode *reloc_inode,
        u64 end = start + extent_key->offset - 1;
 
        em = alloc_extent_map(GFP_NOFS);
-       BUG_ON(!em || IS_ERR(em));
+       BUG_ON(!em);
 
        em->start = start;
        em->len = extent_key->offset;
@@ -8066,6 +8065,13 @@ out:
        return ret;
 }
 
+int btrfs_force_chunk_alloc(struct btrfs_trans_handle *trans,
+                           struct btrfs_root *root, u64 type)
+{
+       u64 alloc_flags = get_alloc_profile(root, type);
+       return do_chunk_alloc(trans, root, 2 * 1024 * 1024, alloc_flags, 1);
+}
+
 /*
  * helper to account the unused space of all the readonly block group in the
  * list. takes mirrors into account.