On Thu, 27 Jul 2023 17:10:15 +0100 David Howells <dhowells@xxxxxxxxxx> wrote: > Fix shmem_splice_read() to splice only part of the partial page at the end > of a splice and not all of it. > > This can be seen by splicing from a tmpfs file that's not a multiple of > PAGE_SIZE in size. Without this fix, it splices extra data to round up to > PAGE_SIZE. This is already in mm-unstable (and hence linux-next) via Hugh's "shmem: minor fixes to splice-read implementation" (https://lkml.kernel.org/r/32c72c9c-72a8-115f-407d-f0148f368@xxxxxxxxxx)