On Tue, May 10, 2022 at 11:12:05AM +1000, Dave Chinner wrote: > > I still don't understand why /any/ of this is necessary. When does > > iocb->ki_filp->f_inode != iocb->ki_filp->f_mapping->host? > > I already asked that question because I don't know the answer, > either. I suspect the answer is "block dev inodes" but that then > just raises the question of "how do we get them here?" and I don't > know the answer to that, either. I don't have the time to dig into > this and I don't expect anyone to just pop up with an answer, > either. So in the mean time, we can just ignore it for the purpose > of this patch set... Weird device nodes (including block device) is the answer. It never happens for a normal file system file struct that we'd see in XFS.
