Btrfs: Add zlib compression support

[linux-2.6-block.git] / fs / btrfs / ordered-data.c

diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 2eb6caba57c278ad92a044da28b7782d009890fb..b5745bb96d40ddfc34d7d3719c5c4ab5b04df790 100644 (file)
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -165,7 +165,8 @@ static inline struct rb_node *tree_search(struct btrfs_ordered_inode_tree *tree,
  * inserted.
  */
 int btrfs_add_ordered_extent(struct inode *inode, u64 file_offset,
-                            u64 start, u64 len, int nocow)
+                            u64 start, u64 len, u64 disk_len, int nocow,
+                            int compressed)
 {
        struct btrfs_ordered_inode_tree *tree;
        struct rb_node *node;
@@ -180,9 +181,12 @@ int btrfs_add_ordered_extent(struct inode *inode, u64 file_offset,
        entry->file_offset = file_offset;
        entry->start = start;
        entry->len = len;
+       entry->disk_len = disk_len;
        entry->inode = inode;
        if (nocow)
                set_bit(BTRFS_ORDERED_NOCOW, &entry->flags);
+       if (compressed)
+               set_bit(BTRFS_ORDERED_COMPRESSED, &entry->flags);
 
        /* one ref for the tree */
        atomic_set(&entry->refs, 1);
@@ -389,9 +393,10 @@ void btrfs_start_ordered_extent(struct inode *inode,
         * for pdflush to find them
         */
        btrfs_fdatawrite_range(inode->i_mapping, start, end, WB_SYNC_NONE);
-       if (wait)
+       if (wait) {
                wait_event(entry->wait, test_bit(BTRFS_ORDERED_COMPLETE,
                                                 &entry->flags));
+       }
 }
 
 /*