On Fri, Nov 24, 2023 at 09:54:49AM +0200, Amir Goldstein wrote: > On Thu, Nov 23, 2023 at 10:04 PM Jens Axboe <axboe@xxxxxxxxx> wrote: > > > > On 11/23/23 2:20 AM, Amir Goldstein wrote: > > > The callers of vfs_iter_write() are required to hold file_start_write(). > > > file_start_write() is a no-op for the S_ISBLK() case, but it is really > > > needed when the backing file is a regular file. > > > > > > We are going to move file_{start,end}_write() into vfs_iter_write(), but > > > we need to fix this first, so that the fix could be backported to stable > > > kernels. > > > > Reviewed-by: Jens Axboe <axboe@xxxxxxxxx> > > > > Christian, > > Shall we just stash this at the bottom of vfs.rw and fixup > "move file_{start,end}_write() into vfs_iter_write()" patch? Ok. > > I see no strong reason to expedite a fix for something rare > that has been broken for a long time. Agreed. > > If Martin decides to expedite it, we can alway rebase vfs.rw > once the fix is merged to master. It's now the first commit on that branch. Let me know if I should drop it.