Archive: https://archive.today/bPyHG From the post: >>Out-of-tree file-system drivers not licensed/compatible with the GPL will have a new obstacle to deal with come time for Linux 6.18 later this year. A patch queued up this week in advance of the Linux 6.18 merge window opening removes write_cache_pages. In turn this will cause issues for non-GPL out-of-tree file-systems for writing dirty data from the page cache. After the NTFS3 and Bcachefs in-tree users of the iterator were moved off of it, for Linux 6.18 the "write_cache_pages" will be removed that is depended upon by out-of-tree, non-GPL file-systems. This patch from Christoph Hellwig is what's now in linux-next ahead of Linux 6.18 and kills off the write_cache_pages now that there are no longer any in-tree users.