fs/9p: Attach writeback_fid on first open with WR flag

[pandora-kernel.git] / fs / 9p / vfs_file.c

diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 3337d58..6997eb6 100644 (file)
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -91,7 +91,8 @@ int v9fs_file_open(struct inode *inode, struct file *file)
 
        file->private_data = fid;
        mutex_lock(&v9inode->v_mutex);
-       if (v9ses->cache && !v9inode->writeback_fid) {
+       if (v9ses->cache && !v9inode->writeback_fid &&
+           ((file->f_flags & O_ACCMODE) != O_RDONLY)) {
                /*
                 * clone a fid and add it to writeback_fid
                 * we do it during open time instead of