Merge patch series "netfs, cachefiles: Miscellaneous fixes"

David Howells <dhowells@redhat.com> says:

Here are some miscellaneous fixes for netfslib and one for cachefiles:

The first six are all in unbuffered/DIO write:

 (1) Fix an uninitialised return value from netfs_unbuffered_write().

 (2) Fix the normal error return, preferring partial transfer size over
     request error over immediate error (e.g. EINTR).

 (3) Fix the async error return, preferring partial transfer size over
     error.

 (4) Fix the update of i_size on partial transfer ending in an error.

 (5) Fix a subrequest leak in an error path.

 (6) Fix the code to handle subrequest allocation failure.

Then there's:

 (7) Fix synchronisation issues with using a progressive rolling buffer for
     readahead by fetching everything into it upfront so that the issues
     don't arise.  Dropping the refs so acquired is deferred until after
     I/O is begun.

 (8) Change the marking of folios to be copied to the cache to be done
     whilst subreqs are being issued rather than at the time they're
     collected.  Whilst this is not strictly a fix, it means that the
     collector thread doesn't need to try and keep track of that, which
     means that delayed progress reporting will not be a problem in patch
     (9).

 (9) Fix read progress reporting to avoid 64-bit tearing on a 32-bit
     machine.  This has been modified from the previous submission as part
     of a different series to take account of a sashiko reported issue[1].

(10) Fix a potential UAF/KASAN warning reported by sashiko[1] in cachefiles
     in which the coherency data buffer is cast to a __be64* and
     dereferenced in a tracepoint - even though it might not be at least
     that large (or aligned).

* patches from https://patch.msgid.link/20260827134304.2075713-1-dhowells@redhat.com:
  cachefiles: Fix potential UAF/KASAN warning
  netfs: Fix read progress reporting
  netfs: Mark folios with COPY_TO_CACHE whilst issuing subreqs
  netfs: Fix readahead synchronisation issues by loading all folios upfront
  netfs: break unbuffered write when netfs_alloc_subrequest() fails
  netfs: Fix subreq ref leak
  netfs: Fix i_size update for partial transfer
  netfs: Fix error vs transferred passed to ->ki_complete()
  netfs: Fix unbuffered/DIO write partial transfer error return
  netfs: Fix uninitialized return value in netfs_unbuffered_write()

Link: https://patch.msgid.link/20260827134304.2075713-1-dhowells@redhat.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

0 files changed, 0 insertions, 0 deletions