[0/2] shmem, splice: Fixes for shmem_splice_read()

Message

David Howells July 27, 2023, 4:10 p.m. UTC

Hi Hugh,

Here are a couple of fix patches for shmem_splice_read():

 (1) Fix the splicing of a zero_page in place of a missing page.  This should
     only splice in the calculated part of the page and everything to the end
     of the page.

 (2) Apply a couple of fixes already applied to filemap_splice_read(),
     including using in->f_mapping_host rather than file_inode(in) and
     ignoring splices that start at or after s_maxbytes.

I've pushed the patches here also:

	https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=splice-fixes

David

David Howells (2):
  shmem: Fix splice of a missing page
  shmem: Apply a couple of filemap_splice_read() fixes to
    shmem_splice_read()

 mm/shmem.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)