提交 b05fd874 编写于 作者: F Filipe Manana 提交者: Chris Mason

Btrfs: fix transaction leak during fsync call

If btrfs_log_dentry_safe() returns an error, we set ret to 1 and
fall through with the goal of committing the transaction. However,
in the case where the inode doesn't need a full sync, we would call
btrfs_wait_ordered_range() against the target range for our inode,
and if it returned an error, we would return without commiting or
ending the transaction.
Signed-off-by: NFilipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: NChris Mason <clm@fb.com>
上级 d7781546
......@@ -2025,8 +2025,10 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
if (!full_sync) {
ret = btrfs_wait_ordered_range(inode, start,
end - start + 1);
if (ret)
if (ret) {
btrfs_end_transaction(trans, root);
goto out;
}
}
ret = btrfs_commit_transaction(trans, root);
} else {
......
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