diff options
| -rw-r--r-- | fs/btrfs/ioctl.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index f0b4237cedfc..04ece8fab921 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2700,10 +2700,15 @@ static inline void lock_extent_range(struct inode *inode, u64 off, u64 len) lock_extent(&BTRFS_I(inode)->io_tree, off, off + len - 1); ordered = btrfs_lookup_first_ordered_extent(inode, off + len - 1); - if (!ordered && + if ((!ordered || + ordered->file_offset + ordered->len <= off || + ordered->file_offset >= off + len) && !test_range_bit(&BTRFS_I(inode)->io_tree, off, - off + len - 1, EXTENT_DELALLOC, 0, NULL)) + off + len - 1, EXTENT_DELALLOC, 0, NULL)) { + if (ordered) + btrfs_put_ordered_extent(ordered); break; + } unlock_extent(&BTRFS_I(inode)->io_tree, off, off + len - 1); if (ordered) btrfs_put_ordered_extent(ordered); |