ext4: disable COLLAPSE_RANGE for bigalloc

[linux-2.6-microblaze.git] / fs / ext4 / extents.c

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index d6bca2a..01b0c20 100644 (file)
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -5406,6 +5406,9 @@ int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len)
        if (!S_ISREG(inode->i_mode))
                return -EINVAL;
 
+       if (EXT4_SB(inode->i_sb)->s_cluster_ratio > 1)
+               return -EOPNOTSUPP;
+
        trace_ext4_collapse_range(inode, offset, len);
 
        punch_start = offset >> EXT4_BLOCK_SIZE_BITS(sb);