--- fs/ubifs/file.c

+++ fs/ubifs/file.c

@@ -1311,6 +1311,9 @@ int ubifs_fsync(struct file *file, struc

dbg_gen("syncing inode %lu", inode->i_ino);

+ if (inode->i_sb->s_flags & MS_RDONLY)

+ return 0;

+

/*

* VFS has already synchronized dirty pages for this inode. Synchronize

* the inode unless this is a 'datasync()' call.