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btrfs: Don't BUG_ON alloc_path errors in btrfs_truncate_inode_items 

I moved the path allocation up a few lines to the top of the function so
that we couldn't get into the state where we've dropped delayed items and
the extent cache but fail due to -ENOMEM.

Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Mark Fasheh 2011-07-12 16:44:10 -07:00
parent 1e5063d093
commit 0eb0e19cde
1 changed files with 5 additions and 4 deletions
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9
fs/btrfs/inode.c
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@ -3172,6 +3172,11 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
BUG_ON(new_size > 0 && min_type != BTRFS_EXTENT_DATA_KEY);
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
path->reada = -1;
if (root->ref_cows || root == root->fs_info->tree_root)
btrfs_drop_extent_cache(inode, new_size & (~mask), (u64)-1, 0);
@ -3184,10 +3189,6 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
if (min_type == 0 && root == BTRFS_I(inode)->root)
btrfs_kill_delayed_inode_items(inode);
path = btrfs_alloc_path();
BUG_ON(!path);
path->reada = -1;
key.objectid = ino;
key.offset = (u64)-1;
key.type = (u8)-1;